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

:root {
    --primary-blue: #2962FF;
    --dark-gray: #2D3748;
    --vibrant-orange: #FF6D00;
    --bg-dark: #0a0a0a;
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', '微软雅黑', sans-serif;
    line-height: 1.6;
    color: #ffffff;
    background: var(--bg-dark);
    overflow-x: hidden;
}

/* 粒子背景动画 */
.particles-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    background: radial-gradient(ellipse at bottom, #1b2735 0%, #090a0f 100%);
}

.particles {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--primary-blue);
    animation: float 6s ease-in-out infinite;
}

.particles:nth-child(1) { left: 10%; animation-delay: 0s; }
.particles:nth-child(2) { left: 20%; animation-delay: 1s; }
.particles:nth-child(3) { left: 30%; animation-delay: 2s; }
.particles:nth-child(4) { left: 40%; animation-delay: 3s; }
.particles:nth-child(5) { left: 50%; animation-delay: 4s; }
.particles:nth-child(6) { left: 60%; animation-delay: 5s; }
.particles:nth-child(7) { left: 70%; animation-delay: 6s; }
.particles:nth-child(8) { left: 80%; animation-delay: 7s; }
.particles:nth-child(9) { left: 90%; animation-delay: 8s; }

@keyframes float {
    0%, 100% { transform: translateY(100vh) scale(0); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(-100px) scale(1); opacity: 0; }
}

/* 蜂窝网格背景 */
.hexagon-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.1;
    background-image: 
        linear-gradient(30deg, transparent 24%, rgba(41, 98, 255, 0.1) 25%, rgba(41, 98, 255, 0.1) 26%, transparent 27%, transparent 74%, rgba(41, 98, 255, 0.1) 75%, rgba(41, 98, 255, 0.1) 76%, transparent 77%),
        linear-gradient(-30deg, transparent 24%, rgba(41, 98, 255, 0.1) 25%, rgba(41, 98, 255, 0.1) 26%, transparent 27%, transparent 74%, rgba(41, 98, 255, 0.1) 75%, rgba(41, 98, 255, 0.1) 76%, transparent 77%);
    background-size: 30px 52px;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1rem 0;
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(10, 10, 10, 0.95);
    padding: 0.5rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-blue);
    text-decoration: none;
}

.logo i {
    font-size: 2rem;
    background: linear-gradient(45deg, var(--primary-blue), var(--vibrant-orange));
    -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); }
}

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

.nav-link {
    color: #ffffff;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--primary-blue);
    background: var(--glass-bg);
    transform: translateY(-2px);
}

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

/* 英雄区 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 6rem 2rem 2rem;
    position: relative;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(45deg, var(--primary-blue), var(--vibrant-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: glitch 3s infinite;
}

@keyframes glitch {
    0%, 100% { text-shadow: 0 0 5px var(--primary-blue); }
    25% { text-shadow: -2px 0 5px var(--vibrant-orange), 2px 0 5px var(--primary-blue); }
    50% { text-shadow: 2px 0 5px var(--vibrant-orange), -2px 0 5px var(--primary-blue); }
    75% { text-shadow: 0 0 5px var(--primary-blue); }
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: #cccccc;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background: linear-gradient(45deg, var(--primary-blue), var(--vibrant-orange));
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: bold;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(41, 98, 255, 0.4);
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: all 0.5s ease;
}

.cta-button:active::before {
    width: 300px;
    height: 300px;
}

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

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(41, 98, 255, 0.3);
    animation: float-image 6s ease-in-out infinite;
}

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

/* 核心功能展示 */
.features {
    padding: 6rem 2rem;
    background: linear-gradient(135deg, rgba(41, 98, 255, 0.1), rgba(255, 109, 0, 0.1));
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    background: linear-gradient(45deg, var(--primary-blue), var(--vibrant-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.features-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

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

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

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(41, 98, 255, 0.2);
}

.feature-icon {
    font-size: 3rem;
    color: var(--primary-blue);
    margin-bottom: 1rem;
    display: block;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #ffffff;
}

.feature-card p {
    color: #cccccc;
    line-height: 1.6;
}

/* 技术优势 */
.advantages {
    padding: 6rem 2rem;
    background: var(--dark-gray);
}

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

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.advantage-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--glass-bg);
    border-radius: 10px;
    border: 1px solid var(--glass-border);
    transition: all 0.3s ease;
}

.advantage-item:hover {
    background: rgba(41, 98, 255, 0.1);
    transform: translateX(10px);
}

.advantage-icon {
    font-size: 2rem;
    color: var(--vibrant-orange);
}

/* SEO优化区域 */
.seo-section {
    padding: 6rem 2rem;
    background: linear-gradient(135deg, #1a1a1a, #2d3748);
}

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

.seo-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.seo-block {
    background: var(--glass-bg);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid var(--glass-border);
}

.seo-block h3 {
    color: var(--primary-blue);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.seo-keywords {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.keyword-tag {
    background: linear-gradient(45deg, var(--primary-blue), var(--vibrant-orange));
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.keyword-tag:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 15px rgba(41, 98, 255, 0.3);
}

/* 页脚 */
.footer {
    background: #0a0a0a;
    padding: 3rem 2rem 1rem;
    border-top: 1px solid var(--glass-border);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

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

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

.footer-section p,
.footer-section a {
    color: #cccccc;
    text-decoration: none;
    line-height: 1.8;
}

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

.copyright {
    border-top: 1px solid var(--glass-border);
    padding-top: 2rem;
    color: #888;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(10, 10, 10, 0.95);
        flex-direction: column;
        padding: 1rem 0;
    }

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

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

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

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

    .seo-content {
        grid-template-columns: 1fr;
    }
}

@media (min-width: 769px) and (max-width: 991px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

@media (min-width: 992px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }

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

/* ASCII代码雨效果 */
.code-rain {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -3;
    opacity: 0.1;
    pointer-events: none;
}

.rain-char {
    position: absolute;
    color: var(--primary-blue);
    font-family: 'Courier New', monospace;
    font-size: 14px;
    animation: rain 10s linear infinite;
}

@keyframes rain {
    0% { top: -100px; opacity: 1; }
    100% { top: 100vh; opacity: 0; }
}

/* FAQ常见问题模块 */
.faq-section {
    padding: 6rem 2rem;
    background: linear-gradient(135deg, rgba(45, 55, 72, 0.1), rgba(41, 98, 255, 0.05));
}

.faq-container {
    max-width: 1000px;
    margin: 0 auto;
}

.faq-grid {
    display: grid;
    gap: 1.5rem;
    margin-top: 3rem;
}

.faq-item {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    background: rgba(41, 98, 255, 0.1);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(41, 98, 255, 0.2);
}

.faq-question {
    padding: 1.5rem 2rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
    border-bottom: 1px solid transparent;
}

.faq-question:hover {
    background: rgba(255, 255, 255, 0.05);
}

.faq-question h3 {
    color: #ffffff;
    font-size: 1.1rem;
    margin: 0;
    flex: 1;
}

.faq-question i {
    color: var(--primary-blue);
    font-size: 1rem;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 200px;
    padding: 0 2rem 1.5rem;
}

.faq-answer p {
    color: #cccccc;
    line-height: 1.7;
    margin: 0;
    padding-top: 1rem;
}

/* FAQ响应式设计 */
@media (max-width: 768px) {
    .faq-question {
        padding: 1rem 1.5rem;
    }
    
    .faq-question h3 {
        font-size: 1rem;
    }
    
    .faq-item.active .faq-answer {
        padding: 0 1.5rem 1rem;
    }
}