/* ===================================
   剑网世界 - 统一深色主题样式
   参考散点游戏官网设计
   =================================== */

:root {
    /* 深色调色板 */
    --color-primary: #c41e3a;
    --color-primary-light: #e5395a;
    --color-bg-dark: #0a0a0a;
    --color-bg-card: #141414;
    --color-bg-card-hover: #1f1f1f;
    --color-text-primary: #ffffff;
    --color-text-secondary: #b0b0b0;
    --color-border: #2a2a2a;
    --color-accent: #d4af37;
    
    --container-width: 1400px;
    --header-height: 80px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background-color: var(--color-bg-dark);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

a { color: inherit; text-decoration: none; transition: var(--transition); }
.container { max-width: var(--container-width); margin: 0 auto; padding: 0 40px; }

/* ===================================
   导航栏
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
}

.navbar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-svg {
    width: 45px;
    height: 45px;
}

.logo-text {
    font-size: 26px;
    font-weight: bold;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-family: "Kaiti SC", "STKaiti", serif;
    letter-spacing: 3px;
}

.nav-menu {
    display: flex;
    gap: 50px;
    list-style: none;
}

.nav-menu a {
    color: var(--color-text-secondary);
    font-size: 16px;
    font-weight: 500;
    position: relative;
    padding: 8px 0;
}

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

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--color-text-primary);
}

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

/* 语言切换器 */
.lang-switcher {
    margin-left: 20px;
}

.lang-buttons {
    display: flex;
    align-items: center;
    gap: 8px;
}

.lang-btn {
    background: transparent;
    border: 1px solid transparent;
    color: var(--color-text-secondary);
    padding: 5px 10px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: var(--transition);
}

.lang-btn:hover,
.lang-btn.active {
    color: var(--color-text-primary);
    border-color: var(--color-primary);
}

.lang-separator {
    color: var(--color-border);
}

/* ===================================
   主 Banner
   =================================== */
.hero-banner {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    overflow: hidden;
    margin-top: var(--header-height);
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 30% 50%, rgba(196, 30, 58, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 70% 50%, rgba(212, 175, 55, 0.2) 0%, transparent 50%),
        linear-gradient(180deg, rgba(10, 10, 10, 0.6) 0%, rgba(26, 26, 26, 0.7) 100%),
        url('../images/hero-bg.jpg') center/cover no-repeat;
    background-size: cover;
    background-position: center;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 1000px;
    margin: 0 auto;
    padding: 40px;
}

.hero-title {
    font-size: 96px;
    font-weight: bold;
    background: linear-gradient(135deg, #ffffff 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-family: "Kaiti SC", "STKaiti", serif;
    letter-spacing: 20px;
    margin-bottom: 20px;
    animation: fadeInUp 1s ease;
}

.hero-subtitle {
    font-size: 36px;
    color: var(--color-primary);
    font-family: "Kaiti SC", "STKaiti", serif;
    letter-spacing: 10px;
    margin-bottom: 30px;
    animation: fadeInUp 1s ease 0.2s both;
}

.hero-desc {
    font-size: 20px;
    color: var(--color-text-secondary);
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto 50px;
    animation: fadeInUp 1s ease 0.4s both;
}

.hero-actions {
    display: flex;
    gap: 25px;
    justify-content: center;
    animation: fadeInUp 1s ease 0.6s both;
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 18px 50px;
    font-size: 18px;
    font-weight: bold;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.btn-icon {
    width: 24px;
    height: 24px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--color-text-primary);
    box-shadow: 0 10px 40px rgba(196, 30, 58, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 50px rgba(196, 30, 58, 0.6);
}

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

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-3px);
}

/* ===================================
   游戏展示区
   =================================== */
.games-section {
    padding: 120px 0;
    background: var(--color-bg-dark);
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-title {
    font-size: 48px;
    font-weight: bold;
    color: var(--color-text-primary);
    font-family: "Kaiti SC", "STKaiti", serif;
    letter-spacing: 10px;
    margin-bottom: 20px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--color-text-secondary);
    letter-spacing: 5px;
    text-transform: uppercase;
}

.games-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 40px;
}

.game-card {
    position: relative;
    background: var(--color-bg-card);
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid var(--color-border);
    cursor: pointer;
}

.game-card:hover {
    transform: translateY(-10px);
    border-color: var(--color-primary);
    box-shadow: 0 20px 60px rgba(196, 30, 58, 0.3);
}

.game-card-image {
    position: relative;
    height: 450px;
    background: 
        linear-gradient(to top, rgba(0, 0, 0, 0.95), transparent),
        center/cover no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* 各游戏卡片背景 - 使用真实图片 */
.game-card:nth-child(1) .game-card-image {
    background: linear-gradient(to top, rgba(0, 0, 0, 0.95), transparent),
                center/cover no-repeat;
    background-image: url('../images/banner1.jpg');
}
.game-card:nth-child(2) .game-card-image {
    background: linear-gradient(to top, rgba(0, 0, 0, 0.95), transparent),
                center/cover no-repeat;
    background-image: url('../images/banner2.jpg');
}
.game-card:nth-child(3) .game-card-image {
    background: linear-gradient(to top, rgba(0, 0, 0, 0.95), transparent),
                center/cover no-repeat;
    background-image: url('../images/banner3.jpg');
}
.game-card:nth-child(4) .game-card-image {
    background: linear-gradient(to top, rgba(0, 0, 0, 0.95), transparent),
                center/cover no-repeat;
    background-image: url('../images/banner4.jpg');
}
.game-card:nth-child(5) .game-card-image {
    background: linear-gradient(to top, rgba(0, 0, 0, 0.95), transparent),
                center/cover no-repeat;
    background-image: url('../images/banner5.jpg');
}
.game-card:nth-child(6) .game-card-image {
    background: linear-gradient(to top, rgba(0, 0, 0, 0.95), transparent),
                center/cover no-repeat;
    background-image: url('../images/banner6.jpg');
}

.game-card-icon {
    font-size: 120px;
    opacity: 0.8;
    transition: var(--transition);
}

.game-card:hover .game-card-icon {
    opacity: 1;
    transform: scale(1.1);
}

.game-card-content {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 30px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.95), transparent);
}

.game-card-title {
    font-size: 28px;
    font-weight: bold;
    color: var(--color-text-primary);
    margin-bottom: 10px;
    font-family: "Kaiti SC", "STKaiti", serif;
}

.game-card-desc {
    font-size: 16px;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: 15px;
}

.game-card-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--color-primary);
    font-weight: bold;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.game-card-link::after {
    content: '→';
    transition: var(--transition);
}

.game-card:hover .game-card-link::after {
    transform: translateX(5px);
}

/* ===================================
   页脚
   =================================== */
.footer {
    background: var(--color-bg-card);
    padding: 80px 0 40px;
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-company h4 {
    font-size: 24px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
    font-family: "Kaiti SC", "STKaiti", serif;
}

.footer-company p {
    font-size: 14px;
    color: var(--color-text-secondary);
    margin-bottom: 10px;
    line-height: 1.8;
}

.footer-links h5 {
    font-size: 16px;
    color: var(--color-text-primary);
    margin-bottom: 20px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 2px;
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--color-text-secondary);
    font-size: 14px;
}

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

.footer-bottom {
    padding-top: 40px;
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-copyright {
    font-size: 13px;
    color: var(--color-text-secondary);
}

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

.footer-legal a {
    font-size: 13px;
    color: var(--color-text-secondary);
}

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

/* 动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式 */
@media (max-width: 1024px) {
    .games-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* 平板背景图优化 */
    .hero-banner {
        min-height: 500px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hero-title {
        font-size: 48px;
        letter-spacing: 10px;
    }
    
    .hero-subtitle {
        font-size: 24px;
        letter-spacing: 5px;
    }
    
    .games-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    /* 手机背景图优化 */
    .hero-banner {
        min-height: 450px;
    }
    
    .hero-bg {
        background-position: center 30%;
    }
}

@media (max-width: 480px) {
    /* 小屏手机优化 */
    .hero-title {
        font-size: 36px;
        letter-spacing: 5px;
    }
    
    .hero-subtitle {
        font-size: 18px;
        letter-spacing: 3px;
    }
    
    .hero-desc {
        font-size: 14px;
    }
    
    .hero-actions {
        flex-direction: column;
        gap: 15px;
    }
    
    .btn {
        padding: 14px 30px;
        font-size: 16px;
    }
    
    .hero-banner {
        min-height: 400px;
    }
    
    .hero-bg {
        background-position: center 20%;
    }
}