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

:root {
    /* 主题色系 */
    --primary: #8B4513;
    --primary-light: #D2691E;
    --accent: #FFD700;
    --accent-glow: rgba(255, 215, 0, 0.4);
    --dark: #2C1810;
    --dark-light: #4A3020;
    
    /* 文字颜色 */
    --text: #333;
    --text-light: #666;
    --text-muted: #999;
    
    /* 功能色 */
    --white: #fff;
    --bg-light: #faf8f5;
    --bg-glass: rgba(255, 255, 255, 0.95);
    
    /* 渐变 */
    --gradient-gold: linear-gradient(135deg, #FFD700, #FFA500);
    --gradient-hero: linear-gradient(135deg, #8B4513, #A0522D, #D2691E);
    --gradient-card: linear-gradient(135deg, rgba(139, 69, 19, 0.05), rgba(210, 105, 30, 0.1));
    
    /* 阴影 */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    --shadow-glow: 0 0 20px rgba(255, 215, 0, 0.3);
    
    /* 过渡 */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.8;
    color: var(--text);
    background: var(--white);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ========== 导航栏 ========== */
.navbar {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    background: var(--white);
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.nav-logo h3 {
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: 1px;
}

.logo-99 {
    color: var(--primary);
    font-weight: 900;
    font-size: 1.8rem;
    text-shadow: 0 2px 8px rgba(139, 69, 19, 0.3);
}

.logo-engine {
    color: var(--accent);
    font-weight: 900;
    font-size: 1.8rem;
    margin-left: 4px;
    text-shadow: 0 2px 8px var(--accent-glow);
}

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

.nav-link {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
    padding: 8px 0;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background: var(--gradient-gold);
    transition: var(--transition);
    border-radius: 2px;
}

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

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

.bar {
    width: 24px;
    height: 2px;
    background: var(--text);
    transition: var(--transition);
    border-radius: 2px;
}

/* ========== Hero 区域 ========== */
.hero {
    min-height: 650px;
    background: var(--gradient-hero);
    display: flex;
    align-items: center;
    padding: 80px 0 60px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 50%, rgba(255, 215, 0, 0.1), transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(210, 105, 30, 0.15), transparent 40%);
    animation: heroGlow 8s ease-in-out infinite alternate;
}

@keyframes heroGlow {
    0% { opacity: 0.5; }
    100% { opacity: 1; }
}

.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><text y="50" font-size="100" fill="rgba(255,215,0,0.03)">996</text></svg>');
    background-size: 80px 80px;
    animation: patternFloat 20s linear infinite;
}

@keyframes patternFloat {
    0% { transform: translate(0, 0); }
    100% { transform: translate(-80px, -80px); }
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: center;
    z-index: 2;
    position: relative;
}

.hero-content {
    color: var(--white);
}

.hero-title {
    font-size: 3.2rem;
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: 1.2;
    letter-spacing: 2px;
    animation: slideInLeft 0.8s ease-out;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.hero-subtitle {
    font-size: 1.6rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    opacity: 0.9;
    letter-spacing: 1px;
    animation: slideInLeft 0.8s ease-out 0.2s backwards;
}

.hero-description {
    font-size: 1.05rem;
    margin-bottom: 2rem;
    opacity: 0.85;
    line-height: 2;
    animation: slideInLeft 0.8s ease-out 0.4s backwards;
}

.hero-description strong {
    color: var(--accent);
    font-weight: 600;
}

/* 统计数据 */
.hero-stats {
    display: flex;
    gap: 2rem;
    margin: 2rem 0;
    animation: slideInLeft 0.8s ease-out 0.6s backwards;
}

.stat-item {
    text-align: center;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 1.2rem 1.8rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition);
}

.stat-item:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.stat-number {
    display: block;
    font-size: 2.4rem;
    font-weight: 900;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.4rem;
    letter-spacing: 2px;
}

.stat-label {
    font-size: 0.85rem;
    opacity: 0.9;
    letter-spacing: 1px;
    font-weight: 500;
}

/* 按钮 */
.hero-buttons {
    display: flex;
    gap: 1rem;
    animation: slideInLeft 0.8s ease-out 0.8s backwards;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
    letter-spacing: 1px;
}

.btn-primary {
    background: var(--white);
    color: var(--primary);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    background: var(--accent);
    color: var(--dark);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.8);
}

.btn-secondary:hover {
    background: var(--white);
    color: var(--primary);
    transform: translateY(-3px);
}

/* Hero图像区域 */
.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2;
    animation: slideInRight 1s ease-out;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.game-animation {
    width: 400px;
    height: 300px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
}

.game-icon {
    font-size: 4.5rem;
    color: var(--white);
    margin-bottom: 1.5rem;
    animation: iconPulse 2s ease-in-out infinite;
    text-shadow: 0 4px 20px var(--accent-glow);
    cursor: pointer;
    transition: var(--transition);
}

.game-icon:hover {
    transform: scale(1.1) rotate(5deg);
}

@keyframes iconPulse {
    0%, 100% {
        transform: scale(1);
        filter: drop-shadow(0 0 20px rgba(255, 215, 0, 0.4));
    }
    50% {
        transform: scale(1.05);
        filter: drop-shadow(0 0 30px rgba(255, 215, 0, 0.6));
    }
}

.platform-icons {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    justify-content: center;
}

.platform-item {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 1rem 1.5rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
}

.platform-item:hover {
    transform: translateY(-6px) scale(1.05);
    background: rgba(255, 255, 255, 0.25);
    box-shadow: var(--shadow-glow);
}

.platform-item i {
    font-size: 1.6rem;
    color: var(--accent);
    margin-bottom: 0.4rem;
    display: block;
    filter: drop-shadow(0 2px 8px var(--accent-glow));
}

.platform-item span {
    color: var(--white);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 1px;
}

/* ========== 通用部分样式 ========== */
section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 3rem;
    color: var(--dark);
    position: relative;
    letter-spacing: 2px;
}

.section-title::after {
    content: '';
    position: absolute;
    width: 80px;
    height: 4px;
    background: var(--gradient-gold);
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
}

/* ========== 引擎介绍 ========== */
.about {
    background: var(--bg-light);
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-card);
    opacity: 0.5;
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.about-text {
    text-align: center;
}

.about-text p {
    font-size: 1.05rem;
    line-height: 2;
    margin-bottom: 1.5rem;
    color: var(--text-light);
}

/* 特色数据网格 */
.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 2.5rem 0;
}

.philosophy-item {
    text-align: center;
    padding: 2rem 1.5rem;
    background: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.philosophy-item::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-card);
    opacity: 0;
    transition: var(--transition);
}

.philosophy-item:hover::before {
    opacity: 1;
}

.philosophy-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
}

.philosophy-number {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 0.8rem;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    z-index: 1;
    letter-spacing: 2px;
}

.philosophy-item h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--dark);
    font-weight: 700;
    letter-spacing: 1px;
    position: relative;
    z-index: 1;
}

.philosophy-item p {
    color: var(--text-muted);
    font-size: 0.9rem;
    position: relative;
    z-index: 1;
    margin: 0;
}

/* 信息项 */
.about-info {
    display: flex;
    justify-content: center;
    gap: 2.5rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--text-light);
    font-weight: 500;
    padding: 8px 16px;
    background: var(--white);
    border-radius: 50px;
    transition: var(--transition);
}

.info-item:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.info-item i {
    color: var(--primary);
    font-size: 1.1rem;
    transition: var(--transition);
}

.info-item:hover i {
    color: var(--accent);
}

/* ========== 开区服务 ========== */
.services {
    background: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.service-item {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(139, 69, 19, 0.1);
}

.service-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-gold);
    transform: scaleX(0);
    transition: var(--transition);
}

.service-item:hover::before {
    transform: scaleX(1);
}

.service-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: var(--gradient-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2rem;
    box-shadow: var(--shadow-glow);
    position: relative;
    z-index: 1;
}

.service-icon::after {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    border: 2px solid var(--accent);
    opacity: 0;
    transition: var(--transition);
}

.service-item:hover .service-icon::after {
    opacity: 1;
    animation: iconRingPulse 1s ease-in-out infinite;
}

@keyframes iconRingPulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.5; }
}

.service-item h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--dark);
    text-align: center;
    font-weight: 700;
    letter-spacing: 1px;
}

.service-item p {
    color: var(--text-light);
    margin-bottom: 1rem;
    text-align: center;
    line-height: 1.8;
    font-weight: 500;
}

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

.service-item li {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 0.6rem;
    padding-left: 1.5rem;
    position: relative;
    line-height: 1.6;
}

.service-item li::before {
    content: '⚔️';
    position: absolute;
    left: 0;
    font-size: 1rem;
}

/* ========== 功能特色 ========== */
.features {
    background: var(--bg-light);
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-card);
    opacity: 0.3;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    position: relative;
    z-index: 1;
}

.feature-item {
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    text-align: center;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.8);
}

.feature-item::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-hero);
    opacity: 0;
    transition: var(--transition);
}

.feature-item:hover::before {
    opacity: 0.08;
}

.feature-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1.5rem;
    background: var(--gradient-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.8rem;
    position: relative;
    z-index: 1;
    box-shadow: var(--shadow-glow);
}

.feature-item h3 {
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
    color: var(--dark);
    font-weight: 700;
    letter-spacing: 1px;
    position: relative;
    z-index: 1;
}

.feature-item p {
    color: var(--text-light);
    line-height: 1.8;
    position: relative;
    z-index: 1;
    font-size: 0.95rem;
}

/* ========== 案例展示 ========== */
.showcase {
    background: var(--white);
}

.showcase-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 2rem;
}

.showcase-card {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid rgba(139, 69, 19, 0.1);
}

.showcase-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent);
}

.showcase-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    position: relative;
}

.showcase-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.showcase-card:hover .showcase-image img {
    transform: scale(1.1);
}

.showcase-content {
    padding: 2rem;
}

.showcase-content h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--dark);
    font-weight: 700;
    letter-spacing: 1px;
}

.showcase-content p {
    color: var(--text-light);
    margin-bottom: 1.2rem;
    line-height: 1.8;
    font-size: 0.95rem;
}

.showcase-info {
    margin-bottom: 1.5rem;
}

.info-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.6rem;
    padding: 0.6rem 1rem;
    background: var(--bg-light);
    border-radius: 8px;
}

.info-row .label {
    font-weight: 600;
    color: var(--dark);
}

.info-row .value {
    color: var(--primary);
    font-weight: 700;
}

.showcase-links {
    display: flex;
    gap: 1rem;
}

.showcase-link {
    background: var(--gradient-gold);
    color: var(--white);
    padding: 0.8rem 1.8rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    letter-spacing: 1px;
}

.showcase-link:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

/* ========== 联系我们 ========== */
.contact {
    background: var(--bg-light);
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-card);
    opacity: 0.5;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.contact-info h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--dark);
    font-weight: 700;
    letter-spacing: 1px;
}

.contact-info p {
    color: var(--text-light);
    margin-bottom: 2rem;
    font-size: 1.05rem;
    line-height: 1.8;
}

.contact-details {
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    transition: var(--transition);
}

.contact-item:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-sm);
}

.contact-item i {
    color: var(--primary);
    font-size: 1.4rem;
    width: 32px;
    text-align: center;
}

.contact-item h4 {
    font-size: 1rem;
    margin-bottom: 0.3rem;
    color: var(--dark);
    font-weight: 600;
}

.contact-item p {
    color: var(--text-light);
    margin: 0;
    font-size: 0.95rem;
}

/* 社交链接 */
.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 44px;
    height: 44px;
    background: var(--gradient-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-decoration: none;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.social-link:hover {
    transform: translateY(-4px) scale(1.1);
    box-shadow: var(--shadow-glow);
}

/* 表单 */
.contact-form {
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(255, 255, 255, 0.8);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid rgba(139, 69, 19, 0.1);
    border-radius: 12px;
    font-size: 0.95rem;
    transition: var(--transition);
    font-family: inherit;
    background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(139, 69, 19, 0.1);
}

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

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" fill="%238B4513"><path d="M6 9L1 4h10z"/></svg>');
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
}

.form-group select option {
    padding: 10px;
}

/* ========== 页脚 ========== */
.footer {
    background: var(--dark);
    color: var(--white);
    padding: 2rem 0;
    text-align: center;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    gap: 2rem;
}

.footer-brand h3 {
    margin-bottom: 0.5rem;
    letter-spacing: 1px;
}

.footer-brand p {
    opacity: 0.8;
    font-size: 0.9rem;
}

.footer-info {
    text-align: right;
}

.footer-info p {
    margin: 0.3rem 0;
    opacity: 0.9;
    font-size: 0.9rem;
}

.footer-content i {
    color: var(--accent);
    margin: 0 4px;
}

/* ========== 响应式设计 ========== */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 64px;
        flex-direction: column;
        background: var(--bg-glass);
        backdrop-filter: blur(20px);
        width: 100%;
        text-align: center;
        transition: var(--transition);
        box-shadow: var(--shadow-md);
        padding: 2rem 0;
        gap: 1rem;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active .bar:nth-child(1) {
        transform: rotate(45deg) translate(4px, 4px);
    }

    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active .bar:nth-child(3) {
        transform: rotate(-45deg) translate(4px, -4px);
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2.5rem;
    }

    .hero-title {
        font-size: 2.6rem;
    }

    .hero-subtitle {
        font-size: 1.4rem;
    }

    .hero-stats {
        justify-content: center;
        gap: 1rem;
    }

    .stat-item {
        padding: 1rem 1.5rem;
    }

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

    .hero-image {
        order: -1;
    }

    .game-animation {
        width: 300px;
        height: 250px;
    }

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

    .philosophy-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 1rem;
    }

    .about-info {
        flex-direction: column;
        gap: 1rem;
    }

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

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

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

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

    .footer-content {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }

    .footer-info {
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

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

    .section-title {
        font-size: 1.8rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    .contact-form {
        padding: 1.5rem;
    }

    .btn {
        padding: 10px 24px;
        font-size: 0.9rem;
    }
}

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

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

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

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

/* ========== 工具类 ========== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: var(--transition-slow);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.slide-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: var(--transition-slow);
}

.slide-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-right {
    opacity: 0;
    transform: translateX(30px);
    transition: var(--transition-slow);
}

.slide-right.visible {
    opacity: 1;
    transform: translateX(0);
}