```css
/* 开元棋牌(中国)官方网站_kygame - 完整样式表 */

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

:root {
    --primary: #ff6b35;
    --primary-dark: #e55a2b;
    --secondary: #1a1a2e;
    --accent: #16213e;
    --bg: #f8f9fa;
    --text: #2d3436;
    --text-light: #636e72;
    --glass: rgba(255, 255, 255, 0.15);
    --glass-border: rgba(255, 255, 255, 0.2);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    --radius: 20px;
    --transition: 0.3s ease;
    --gradient: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    --gradient-accent: linear-gradient(135deg, #ff6b35, #f7931e);
}

[data-theme="dark"] {
    --bg: #0d0d1a;
    --text: #e0e0e0;
    --text-light: #a0a0b0;
    --glass: rgba(0, 0, 0, 0.3);
    --glass-border: rgba(255, 255, 255, 0.1);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    --secondary: #0f0f23;
    --accent: #1a1a3e;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    transition: background var(--transition), color var(--transition);
    overflow-x: hidden;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--primary-dark);
}

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

/* 头部导航 */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    transition: background var(--transition);
}

nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5em;
    font-weight: 800;
    color: var(--primary);
}

.logo svg {
    width: 40px;
    height: 40px;
}

.nav-links {
    display: flex;
    gap: 25px;
    list-style: none;
}

.nav-links a {
    color: var(--text);
    font-weight: 500;
    font-size: 0.95em;
    padding: 5px 0;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width var(--transition);
}

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

.nav-links a.active {
    color: var(--primary);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.search-btn,
.theme-toggle,
.menu-toggle {
    background: none;
    border: none;
    color: var(--text);
    font-size: 1.3em;
    cursor: pointer;
    padding: 5px;
    border-radius: 50%;
    transition: background var(--transition);
}

.search-btn:hover,
.theme-toggle:hover,
.menu-toggle:hover {
    background: var(--glass);
}

.menu-toggle {
    display: none;
}

/* 搜索覆盖层 */
.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
}

.search-overlay.active {
    display: flex;
}

.search-box {
    width: 80%;
    max-width: 600px;
    display: flex;
    background: var(--bg);
    border-radius: 50px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.search-box input {
    flex: 1;
    padding: 18px 25px;
    border: none;
    background: transparent;
    font-size: 1.1em;
    color: var(--text);
    outline: none;
}

.search-box button {
    padding: 18px 30px;
    background: var(--primary);
    color: #fff;
    border: none;
    cursor: pointer;
    font-size: 1.1em;
    transition: background var(--transition);
}

.search-box button:hover {
    background: var(--primary-dark);
}

.search-close {
    position: absolute;
    top: 30px;
    right: 30px;
    background: none;
    border: none;
    color: #fff;
    font-size: 2.5em;
    cursor: pointer;
}

/* Hero区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient);
    position: relative;
    overflow: hidden;
    padding: 120px 20px 60px;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 50%, rgba(255, 107, 53, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 70% 80%, rgba(15, 52, 96, 0.3) 0%, transparent 50%);
    animation: heroGlow 10s ease-in-out infinite;
}

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

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
}

.hero h1 {
    font-size: 3.5em;
    font-weight: 800;
    color: #fff;
    margin-bottom: 20px;
    line-height: 1.2;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.hero h1 span {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.3em;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

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

.btn {
    padding: 16px 40px;
    border-radius: 50px;
    font-size: 1em;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.btn-primary {
    background: var(--gradient-accent);
    color: #fff;
    box-shadow: 0 8px 25px rgba(255, 107, 53, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(255, 107, 53, 0.5);
}

.btn-outline {
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: #fff;
}

.btn-outline:hover {
    border-color: var(--primary);
    background: rgba(255, 107, 53, 0.1);
    transform: translateY(-3px);
}

.hero-banner-indicators {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-top: 40px;
}

.hero-banner-indicators span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: all var(--transition);
}

.hero-banner-indicators span.active {
    background: var(--primary);
    width: 30px;
    border-radius: 6px;
}

/* 通用区块 */
.section {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 2.5em;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text);
}

.section-title p {
    font-size: 1.1em;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* 网格布局 */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

/* 卡片样式 */
.card {
    background: var(--glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: var(--shadow);
    transition: all var(--transition);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.15);
}

.card-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 20px;
}

.card h3 {
    font-size: 1.3em;
    margin-bottom: 15px;
    color: var(--text);
}

.card p {
    color: var(--text-light);
    line-height: 1.7;
}

.glass-card {
    background: var(--glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 40px;
    box-shadow: var(--shadow);
}

/* 统计数字 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}

.stat-item {
    padding: 30px;
}

.stat-number {
    font-size: 3em;
    font-weight: 800;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-label {
    font-size: 1em;
    color: var(--text-light);
    margin-top: 10px;
}

/* 客户评价卡片 */
.testimonial-card {
    background: var(--glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 40px;
    position: relative;
}

.testimonial-card::before {
    content: '"';
    font-size: 4em;
    color: var(--primary);
    opacity: 0.2;
    position: absolute;
    top: 10px;
    left: 20px;
}

/* FAQ */
.faq-item {
    border-bottom: 1px solid var(--glass-border);
    padding: 20px 0;
    cursor: pointer;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.1em;
    font-weight: 600;
}

.faq-question span {
    transition: transform var(--transition);
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
    padding-top: 0;
}

.faq-item.active .faq-answer {
    max-height: 300px;
    padding-top: 15px;
}

.faq-answer p {
    color: var(--text-light);
}

/* HowTo步骤 */
.howto-steps {
    counter-reset: step;
}

.howto-step {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    align-items: flex-start;
}

.howto-step::before {
    counter-increment: step;
    content: counter(step);
    width: 40px;
    height: 40px;
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    flex-shrink: 0;
}

.howto-step h4 {
    margin-bottom: 5px;
}

.howto-step p {
    color: var(--text-light);
}

/* 新闻卡片 */
.news-card {
    background: var(--glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all var(--transition);
}

.news-card:hover {
    transform: translateY(-5px);
}

.news-card-img {
    width: 100%;
    height: 200px;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
}

.news-card-img svg {
    width: 60px;
    height: 60px;
    opacity: 0.5;
}

.news-card-body {
    padding: 25px;
}

.news-card-body h4 {
    margin-bottom: 10px;
}

.news-card-body p {
    color: var(--text-light);
    font-size: 0.95em;
}

.news-card-body .meta {
    display: flex;
    justify-content: space-between;
    margin-top: 15px;
    font-size: 0.85em;
    color: var(--text-light);
}

/* 合作伙伴 */
.partner-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
    align-items: center;
}

.partner-item {
    width: 120px;
    height: 60px;
    background: var(--glass);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--glass-border);
    transition: all var(--transition);
}

.partner-item:hover {
    transform: scale(1.05);
    border-color: var(--primary);
}

.partner-item svg {
    width: 80px;
    height: 40px;
    opacity: 0.6;
}

/* 页脚 */
.footer {
    background: var(--secondary);
    color: #fff;
    padding: 60px 0 30px;
}

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

.footer h4 {
    font-size: 1.1em;
    margin-bottom: 20px;
    color: var(--primary);
}

.footer a {
    color: rgba(255, 255, 255, 0.7);
    display: block;
    margin-bottom: 10px;
    font-size: 0.95em;
}

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

.footer p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.95em;
    line-height: 1.8;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    margin-top: 40px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
    font-size: 0.85em;
    color: rgba(255, 255, 255, 0.5);
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

/* 面包屑导航 */
.breadcrumb {
    display: flex;
    gap: 10px;
    padding: 20px 0;
    font-size: 0.9em;
    color: var(--text-light);
}

.breadcrumb a {
    color: var(--text-light);
}

.breadcrumb span {
    color: var(--primary);
}

/* 返回顶部 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-accent);
    border: none;
    border-radius: 50%;
    color: #fff;
    font-size: 1.5em;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.4);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 999;
    transition: all var(--transition);
}

.back-to-top.visible {
    display: flex;
}

.back-to-top:hover {
    transform: translateY(-3px);
}

/* 团队网格 */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.team-member {
    text-align: center;
    padding: 30px;
}

.team-member svg {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin-bottom: 15px;
}

/* 相关文章 */
.related-posts {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 30px;
}

/* 分页 */
.pagination {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-top: 40px;
}

.pagination a {
    padding: 8px 16px;
    border-radius: 8px;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    color: var(--text);
}

.pagination a.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

/* 隐藏的Schema */
.schema-hidden {
    display: none;
}

/* 品牌故事内容 */
.brand-story-content {
    max-width: 800px;
    margin: 0 auto;
}

.brand-story-content p {
    margin-bottom: 20px;
    color: var(--text-light);
    line-height: 1.9;
}

/* SVG图标 */
.svg-icon {
    width: 100%;
    height: 100%;
}

/* 滚动动画 */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg);
        padding: 20px;
        border-bottom: 1px solid var(--glass-border);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .hero h1 {
        font-size: 2.2em;
    }
    
    .hero p {
        font-size: 1em;
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .section-title h2 {
        font-size: 2em;
    }
    
    .related-posts {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .hero h1 {
        font-size: 1.8em;
    }
}

/* 表单输入框样式（用于联系我们） */
input[type="text"],
input[type="email"],
textarea {
    width: 100%;
    padding: 12px;
    margin-bottom: 15px;
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    background: var(--glass);
    color: var(--text);
    font-size: 1em;
    outline: none;
    transition: border-color var(--transition);
}

input[type="text"]:focus,
input[type="email"]:focus,
textarea:focus {
    border-color: var(--primary);
}
```