/* 怡讯电子 - 赛博朋克霓虹风格 */

:root {
    --neon-cyan: #00ffff;
    --neon-pink: #ff00ff;
    --neon-green: #00ff00;
    --neon-orange: #ff6600;
    --neon-purple: #9d00ff;
    --neon-blue: #0088ff;
    --bg-dark: #0a0a12;
    --bg-darker: #050508;
    --bg-card: rgba(10, 10, 20, 0.9);
    --text-primary: #ffffff;
    --text-secondary: #888899;
    --border-glow: rgba(0, 255, 255, 0.3);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* 背景网格 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(90deg, transparent 98%, rgba(0, 255, 255, 0.02) 100%),
        linear-gradient(0deg, transparent 98%, rgba(255, 0, 255, 0.02) 100%);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: -1;
}

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

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(5, 5, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-glow);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(5, 5, 10, 0.98);
    box-shadow: 0 0 30px rgba(0, 255, 255, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: white;
}

.logo-icon {
    font-size: 2rem;
    filter: drop-shadow(0 0 10px var(--neon-cyan));
}

.logo-text {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 2px;
}

.logo-text .accent {
    color: var(--neon-cyan);
    font-size: 0.7rem;
    display: block;
    letter-spacing: 4px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--neon-cyan);
    transition: width 0.3s ease;
}

.nav-links a:hover {
    color: var(--neon-cyan);
    text-shadow: 0 0 10px var(--neon-cyan);
}

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero 区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(0, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 50%, rgba(255, 0, 255, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 100%, rgba(157, 0, 255, 0.15) 0%, transparent 50%);
    animation: heroGlow 10s ease-in-out infinite;
}

@keyframes heroGlow {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.hero-content {
    text-align: center;
    z-index: 1;
    padding: 20px;
}

.hero h1 {
    font-family: 'Orbitron', 'Noto Sans SC', sans-serif;
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: 20px;
    background: linear-gradient(90deg, var(--neon-cyan), var(--neon-pink), var(--neon-cyan));
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradient 5s linear infinite;
    text-shadow: 0 0 50px rgba(0, 255, 255, 0.5);
}

@keyframes gradient {
    0% { background-position: 0% center; }
    100% { background-position: 200% center; }
}

/* Glitch 效果 */
.glitch {
    position: relative;
}

.glitch::before,
.glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-dark);
}

.glitch::before {
    left: 2px;
    text-shadow: -2px 0 var(--neon-pink);
    clip: rect(24px, 550px, 90px, 0);
    animation: glitch-anim 3s infinite linear alternate-reverse;
}

.glitch::after {
    left: -2px;
    text-shadow: -2px 0 var(--neon-cyan);
    clip: rect(85px, 550px, 140px, 0);
    animation: glitch-anim 2s infinite linear alternate-reverse;
}

@keyframes glitch-anim {
    0% { clip: rect(17px, 9999px, 94px, 0); }
    10% { clip: rect(33px, 9999px, 18px, 0); }
    20% { clip: rect(75px, 9999px, 63px, 0); }
    30% { clip: rect(58px, 9999px, 27px, 0); }
    40% { clip: rect(45px, 9999px, 88px, 0); }
    50% { clip: rect(82px, 9999px, 5px, 0); }
    60% { clip: rect(39px, 9999px, 99px, 0); }
    70% { clip: rect(11px, 9999px, 67px, 0); }
    80% { clip: rect(93px, 9999px, 42px, 0); }
    90% { clip: rect(27px, 9999px, 71px, 0); }
    100% { clip: rect(64px, 9999px, 15px, 0); }
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    letter-spacing: 3px;
}

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

/* 按钮 */
.btn {
    display: inline-block;
    padding: 15px 40px;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--neon-cyan), var(--neon-blue));
    color: #000;
    box-shadow: 0 0 30px rgba(0, 255, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 50px rgba(0, 255, 255, 0.5);
}

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

.btn-outline:hover {
    background: var(--neon-cyan);
    color: #000;
    box-shadow: 0 0 30px var(--neon-cyan);
}

.btn-block {
    width: 100%;
    text-align: center;
}

/* 滚动指示器 */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
}

.scroll-indicator span {
    display: block;
    width: 20px;
    height: 30px;
    border: 2px solid var(--neon-cyan);
    border-radius: 10px;
    position: relative;
}

.scroll-indicator span::before {
    content: '';
    position: absolute;
    top: 5px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--neon-cyan);
    border-radius: 2px;
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% { opacity: 1; top: 5px; }
    100% { opacity: 0; top: 15px; }
}

/* Section 通用样式 */
.section {
    padding: 100px 0;
    position: relative;
}

.section-title {
    font-family: 'Orbitron', 'Noto Sans SC', sans-serif;
    font-size: 2.2rem;
    text-align: center;
    margin-bottom: 60px;
    color: var(--neon-cyan);
    text-shadow: 0 0 20px rgba(0, 255, 255, 0.3);
}

.section-title span {
    display: block;
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 5px;
    margin-top: 5px;
}

/* 关于我们 */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-content p {
    margin-bottom: 20px;
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.about-content .highlight {
    color: var(--neon-cyan);
    font-weight: 600;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glow);
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
}

.stat-card:hover {
    border-color: var(--neon-cyan);
    box-shadow: 0 0 30px rgba(0, 255, 255, 0.2);
    transform: translateY(-5px);
}

.stat-number {
    font-family: 'Orbitron', sans-serif;
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--neon-pink);
    text-shadow: 0 0 20px rgba(255, 0, 255, 0.5);
}

.stat-label {
    color: var(--text-secondary);
    margin-top: 5px;
}

/* 产品中心 */
.products {
    background: var(--bg-darker);
}

.product-tabs {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 30px;
    background: transparent;
    border: 1px solid var(--border-glow);
    color: var(--text-secondary);
    border-radius: 25px;
    cursor: pointer;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    font-family: 'Noto Sans SC', sans-serif;
}

.tab-btn:hover,
.tab-btn.active {
    background: var(--neon-cyan);
    color: #000;
    border-color: var(--neon-cyan);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.4);
}

.product-panel {
    display: none;
}

.product-panel.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.product-intro {
    text-align: center;
    margin-bottom: 40px;
}

.product-intro h3 {
    font-size: 1.5rem;
    color: var(--neon-cyan);
    margin-bottom: 15px;
}

.product-intro p {
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.product-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glow);
    border-radius: 15px;
    padding: 25px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--neon-cyan), var(--neon-pink));
}

.product-card:hover {
    border-color: var(--neon-cyan);
    box-shadow: 0 0 40px rgba(0, 255, 255, 0.2);
    transform: translateY(-5px);
}

.product-image {
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 15px;
}

.placeholder-img {
    font-size: 4rem;
    filter: grayscale(0.5);
    transition: all 0.3s ease;
}

.product-card:hover .placeholder-img {
    filter: grayscale(0);
    transform: scale(1.1);
}

.product-card h4 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.product-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.product-tag {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--neon-pink);
    color: #000;
    padding: 3px 10px;
    border-radius: 10px;
    font-size: 0.75rem;
    font-weight: 700;
}

.product-tag.new {
    background: var(--neon-green);
}

/* 核心优势 */
.advantage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.advantage-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glow);
    border-radius: 15px;
    padding: 35px;
    text-align: center;
    transition: all 0.3s ease;
}

.advantage-card:hover {
    border-color: var(--neon-cyan);
    box-shadow: 0 0 40px rgba(0, 255, 255, 0.2);
    transform: translateY(-5px);
}

.advantage-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    filter: drop-shadow(0 0 10px var(--neon-cyan));
}

.advantage-card h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--neon-cyan);
}

.advantage-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* 应用领域 */
.applications {
    background: var(--bg-darker);
}

.app-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 20px;
}

.app-item {
    background: var(--bg-card);
    border: 1px solid var(--border-glow);
    border-radius: 15px;
    padding: 30px 15px;
    text-align: center;
    transition: all 0.3s ease;
}

.app-item:hover {
    border-color: var(--neon-pink);
    box-shadow: 0 0 30px rgba(255, 0, 255, 0.2);
    transform: scale(1.05);
}

.app-item span {
    font-size: 2.5rem;
    display: block;
    margin-bottom: 10px;
}

.app-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* 联系我们 */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.contact-item {
    display: flex;
    gap: 15px;
    align-items: flex-start;
}

.contact-icon {
    font-size: 1.8rem;
    filter: drop-shadow(0 0 5px var(--neon-cyan));
}

.contact-item h4 {
    color: var(--neon-cyan);
    font-size: 0.9rem;
    margin-bottom: 5px;
}

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

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

.contact-item a:hover {
    color: var(--neon-cyan);
}

.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border-glow);
    border-radius: 15px;
    padding: 35px;
}

.contact-form h3 {
    font-size: 1.3rem;
    margin-bottom: 25px;
    color: var(--neon-cyan);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid var(--border-glow);
    border-radius: 10px;
    color: white;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--neon-cyan);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.2);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* 页脚 */
.footer {
    background: var(--bg-darker);
    border-top: 1px solid var(--border-glow);
    padding: 40px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
    font-weight: 700;
}

.footer-links {
    display: flex;
    gap: 30px;
}

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

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

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* 响应式 */
@media (max-width: 992px) {
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(5, 5, 10, 0.98);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
        border-bottom: 1px solid var(--border-glow);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero h1 {
        font-size: 1.5rem;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 1.6rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}