/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 引入自定义字体 */
@font-face {
    font-family: 'CustomFont';
    src: url('../fonts/font.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
}

/* 基础样式和变量 */
:root {
    /* 颜色变量 - 清新现代配色 */
    --primary-blue: #2563EB;
    --primary-purple: #7C3AED;
    --primary-cyan: #06B6D4;
    --secondary-blue: #60A5FA;
    --secondary-purple: #A78BFA;
    --secondary-cyan: #22D3EE;
    --light-bg: #F8FAFC;
    --card-bg: #FFFFFF;
    --white: #FFFFFF;
    --dark-gray: #1E293B;
    --medium-gray: #475569;
    --text-dark: #1E293B;
    --text-medium: #64748B;
    --text-light: #94A3B8;
    --text-dim: #A1A1AA;
    --border-light: #E2E8F0;
    --accent-green: #10B981;
    --accent-orange: #F59E0B;
    
    /* 字体变量 */
    --main-font: 'CustomFont', 'Inter', 'Segoe UI', sans-serif;
    --pixel-font: 'CustomFont', 'Press Start 2P', cursive;
    
    /* 间距变量 */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-xxl: 80px;
    
    /* 边框变量 */
    --border-radius: 16px;
    --border-radius-sm: 8px;
    --border-width: 1px;
    --border-width-thick: 3px;
    
    /* 阴影变量 */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
    
    /* 过渡变量 */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* 字体权重变量 */
    --title-font-weight: 700;
    --subtitle-font-weight: 600;
    --body-font-weight: 400;
}

/* 深色模式颜色变量 */
:root[data-theme="dark"] {
    --primary-blue: #3B82F6;
    --primary-purple: #8B5CF6;
    --secondary-blue: #93C5FD;
    --secondary-purple: #C4B5FD;
    --light-bg: #0F172A;
    --card-bg: #1E293B;
    --text-dark: #F8FAFC;
    --text-medium: #94A3B8;
    --text-light: #64748B;
    --text-dim: #52525B;
    --border-light: #334155;
    --accent-green: #34D399;
    --accent-orange: #FBBF24;
}

body {
    font-family: var(--main-font);
    background-color: var(--light-bg);
    color: var(--text-dark);
    line-height: 1.7;
    background-image: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('../imgs/background.png');
    background-size: cover;
    background-position: center;
    background-attachment: scroll;
    min-height: 100vh;
}

/* 深色模式下的body样式 */
:root[data-theme="dark"] body {
    background-image: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('../imgs/background.png');
}

p {
    margin-bottom: var(--spacing-md);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* 导航栏样式 */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-light);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

/* 汉堡菜单默认隐藏 */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background-color: var(--text-dark);
    margin: 3px 0;
    transition: 0.3s;
}

/* 深色模式下的汉堡菜单 */
:root[data-theme="dark"] .hamburger span {
    background-color: var(--white);
}

/* 深色模式下的导航栏样式 */
:root[data-theme="dark"] .navbar {
    background: rgba(15, 23, 42, 0.95);
    border-bottom-color: var(--border-light);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-md);
}

.logo h1 {
    font-family: var(--pixel-font);
    font-size: 1.4rem;
    color: var(--primary-purple);
    margin: 0;
    transition: all var(--transition-normal);
}

.logo h1:hover {
    color: var(--secondary-purple);
}

.nav-menu {
    display: flex;
    gap: var(--spacing-sm);
    margin: 0;
    padding: 0;
    list-style: none;
}

.nav-link {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-normal);
    position: relative;
    font-size: 0.95rem;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-purple);
    background-color: rgba(124, 58, 237, 0.05);
    box-shadow: 0 0 15px rgba(124, 58, 237, 0.4);
    padding-left: var(--spacing-lg);
}

.nav-link.active::before {
    content: url('../imgs/heart.png');
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background-color: var(--text-dark);
    margin: 3px 0;
    transition: 0.3s;
}

/* 深色模式开关样式 */

/* 隐藏类 */
.hidden {
    display: none !important;
}

/* 模态框隐藏类（用于支持过渡动画） */
.modal-hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

/* 选择区域切换动画 */
.selector-container {
    animation: fadeIn var(--transition-normal) ease;
}

/* 视频容器显示动画 */
.video-container {
    animation: fadeIn var(--transition-slow) ease;
}

/* 按钮点击反馈动画 */
.game-option:active,
.chapter-option:active {
    transform: translateY(0) scale(0.98);
}

/* 增强的悬停效果 */
.video-item {
    transition: all var(--transition-normal);
}

.video-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 0 20px var(--primary-purple), var(--shadow-xl);
}

/* 游戏选择区域样式 */
.game-selector {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-xl) 0;
    transition: all var(--transition-normal);
}

.selector-container {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    text-align: center;
    max-width: 800px;
    width: 100%;
    transition: all var(--transition-normal);
}

.selector-container h3 {
    margin-bottom: var(--spacing-lg);
    color: var(--text-dark);
    font-size: 1.5rem;
}

.game-options {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.game-option {
    background-color: var(--primary-purple);
    color: var(--white);
    border: none;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-sm);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    min-width: 150px;
}

.chapter-options {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.chapter-option {
    background-color: var(--primary-blue);
    color: var(--white);
    border: none;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    min-width: 100px;
}

.game-option:hover {
    background-color: var(--secondary-purple);
    transform: translateY(-2px);
    box-shadow: 0 0 20px var(--primary-purple), var(--shadow-md);
}

/* 游戏封面按钮公共样式 */
.game-option-with-cover {
    min-width: 300px;
    max-width: 48%;
    width: 100%;
    flex: 1;
    height: 200px;
    background-size: cover;
    background-position: center;
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    border: 3px solid var(--primary-purple);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    padding-bottom: 0;
    opacity: 0.9;
}

/* 游戏按钮文字样式 */
.game-option-with-cover::after {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    padding: var(--spacing-md);
    font-size: 1.2rem;
    font-weight: bold;
    text-align: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

/* 传说之下按钮文字 */
.game-option-undertale::after {
    content: "传说之下";
}

/* 三角符文按钮文字 */
.game-option-deltarune::after {
    content: "三角符文";
}

/* 修改按钮原始文字为隐藏 */
.game-option-with-cover {
    color: transparent;
}

/* 传说之下按钮特殊样式 */
.game-option-undertale {
    background-image: url('../imgs/undertale.jpeg');
}

/* 三角符文按钮特殊样式 */
.game-option-deltarune {
    background-image: url('../imgs/deltarune.jpeg');
}

/* 游戏封面按钮悬停样式 */
.game-option-with-cover:hover {
    background-color: rgba(147, 112, 219, 0.3);
    background-blend-mode: overlay;
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 0 20px var(--primary-purple), var(--shadow-xl);
    border-color: var(--secondary-purple);
}

/* 悬停时显示游戏按钮文字 */
.game-option-with-cover:hover::after {
    opacity: 1;
}

.game-option:active {
    transform: translateY(0);
}

/* 状态警告样式 */
.status-warning {
    color: #ff4444;
    font-weight: bold;
    cursor: help;
}

/* 章节选择区域样式 */
.chapter-selector {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-xl) 0;
    transition: all var(--transition-normal);
}

.chapter-options {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.chapter-option {
    background-color: var(--primary-blue);
    color: var(--white);
    border: none;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    min-width: 100px;
}

.chapter-option:hover {
    background-color: var(--secondary-purple);
    transform: translateY(-2px);
    box-shadow: 0 0 20px var(--primary-purple), var(--shadow-md);
}

.chapter-option:active {
    transform: translateY(0);
}

/* 返回按钮样式 */
.return-btn {
    background-color: var(--accent-orange);
    color: var(--white);
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    margin-bottom: var(--spacing-md);
    display: inline-block;
}

.return-btn:hover {
    background-color: #d97706;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.return-btn:active {
    transform: translateY(0);
}

/* 视频容器样式 */
.video-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    justify-content: center;
    padding: var(--spacing-xl) 0;
    transition: all var(--transition-normal);
}

.video-item {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    opacity: 0;
    transform: translateY(20px);
}

.video-item.visible {
    opacity: 1;
    transform: translateY(0);
}

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

.video-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.video-item:hover .video-thumbnail img {
    transform: scale(1.05);
}

.video-duration {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background-color: rgba(0, 0, 0, 0.8);
    color: var(--white);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* 剧透标签样式 */
.spoiler-tag {
    position: absolute;
    top: 0;
    left: 0;
    background-color: #e74c3c;
    color: white;
    padding: 4px 8px;
    font-size: 0.9rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    z-index: 10;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* 自定义确认框样式 */
#custom-confirm {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

#custom-confirm.active {
    opacity: 1;
    pointer-events: auto;
}

#custom-confirm .custom-confirm-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(0px);
    transition: backdrop-filter 0.3s ease;
}

@keyframes backdropBlur {
    0% {
        backdrop-filter: blur(0px);
    }
    50% {
        backdrop-filter: blur(0px);
    }
    100% {
        backdrop-filter: blur(5px);
    }
}

#custom-confirm.active .custom-confirm-overlay {
    animation: backdropBlur 0.6s ease forwards;
}

#custom-confirm .custom-confirm-content {
    position: relative;
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    width: 90%;
    max-width: 450px;
    box-shadow: var(--shadow-xl);
    z-index: 2010;
    transform: translateY(30px);
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

#custom-confirm.active .custom-confirm-content {
    transform: translateY(0);
    opacity: 1;
}

.custom-confirm-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
    text-align: center;
    color: #e74c3c;
}

.custom-confirm-message {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
    text-align: center;
    line-height: 1.6;
}

.custom-confirm-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

.custom-confirm-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color var(--transition-normal) ease;
    min-width: 100px;
}

.custom-confirm-cancel {
    background-color: var(--text-light);
    color: var(--white);
}

.custom-confirm-cancel:hover {
    background-color: var(--medium-gray);
    box-shadow: var(--shadow-md);
}

.custom-confirm-ok {
    background-color: #e74c3c;
    color: var(--white);
}

.custom-confirm-ok:hover {
    background-color: #c0392b;
    box-shadow: var(--shadow-md);
}

.custom-confirm-btn:active {
    transform: translateY(0);
}

.play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: rgba(0, 0, 0, 0.7);
    color: var(--white);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    opacity: 0;
    transition: all var(--transition-normal);
    cursor: pointer;
}

.video-item:hover .play-btn {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.1);
    box-shadow: 0 0 15px var(--primary-purple);
}

.video-info {
    padding: var(--spacing-md);
}

.video-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-dark);
    line-height: 1.4;
}

.video-stats {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-xs);
}

.video-meta {
    font-size: 0.8rem;
    color: var(--text-light);
}

/* 顶部选择框样式 */
.top-selector {
    position: fixed;
    top: 90px; /* 导航栏高度 */
    left: 0;
    right: 0;
    z-index: 900;
    background-color: var(--card-bg);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-sm) 0;
    min-height: auto;
    opacity: 0;
    transform: translateY(-10px);
    transition: all var(--transition-normal) ease;
}

.top-selector.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 移动端响应式样式 */
@media (max-width: 768px) {
    /* 显示汉堡菜单 */
    .hamburger {
        display: flex;
    }
    
    /* 隐藏导航菜单 */
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 90px;
        flex-direction: column;
        background-color: var(--card-bg);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: var(--spacing-lg) 0;
    }
    
    /* 导航菜单展开样式 */
    .nav-menu.active {
        left: 0;
    }
    
    /* 导航链接样式 */
    .nav-link {
        margin: var(--spacing-md) 0;
        display: block;
    }
    
    /* 深色模式下的导航菜单 */
    :root[data-theme="dark"] .nav-menu {
        background-color: var(--dark-gray);
    }
    .top-selector {
        display: none !important;
    }
    
    .top-selector.visible {
        display: block !important;
    }
    
    .mobile-toggle-btn {
        display: block;
        position: fixed;
        bottom: 20px;
        right: 20px;
        z-index: 1000;
        padding: 10px 20px;
        background-color: var(--primary-purple);
        color: white;
        border: none;
        border-radius: 50px;
        box-shadow: var(--shadow-lg);
        font-family: var(--main-font);
        font-size: 14px;
        cursor: pointer;
        transition: all var(--transition-fast) ease;
    }
    
    .mobile-toggle-btn:hover {
        transform: scale(1.05);
        box-shadow: var(--shadow-xl);
    }
    
    .mobile-toggle-btn:active {
        transform: scale(0.95);
    }
    
    .mobile-toggle-btn {
        opacity: 1;
        transform: scale(1);
        visibility: visible;
        transition: all var(--transition-normal) ease;
    }
    
    .mobile-toggle-btn.hidden {
        opacity: 0;
        transform: scale(0.8);
        visibility: hidden;
        pointer-events: none;
        transition: all var(--transition-normal) ease;
    }
}

.top-selector .selector-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md);
    box-shadow: none;
}

.top-selector h3 {
    display: none;
}

/* 渐隐动画 */
.fade-out {
    opacity: 0;
    transform: translateY(-20px);
    transition: all var(--transition-normal) ease;
}

/* 确保基础状态有过渡属性 */
.game-selector,
.chapter-selector,
.video-container {
    transition: all var(--transition-normal) ease;
    opacity: 1;
    transform: translateY(0);
}

/* 淡入动画 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
.theme-switch {
    display: flex;
    align-items: center;
    margin-right: var(--spacing-sm);
    display: none;
}

.theme-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 28px;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-purple));
    border: none;
    border-radius: 20px;
    cursor: pointer;
    position: relative;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
    padding: 0;
    display: none;
}

.theme-btn:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.theme-btn .sun-icon,
.theme-btn .moon-icon {
    position: absolute;
    font-size: 14px;
    transition: all var(--transition-normal);
}

.theme-btn .sun-icon {
    left: 6px;
    opacity: 1;
    transform: scale(1);
}

.theme-btn .moon-icon {
    right: 6px;
    opacity: 0;
    transform: scale(0.8);
}

/* 深色模式下的开关样式 */
:root[data-theme="dark"] .theme-btn {
    background: linear-gradient(135deg, var(--secondary-blue), var(--secondary-purple));
}

:root[data-theme="dark"] .theme-btn .sun-icon {
    opacity: 0;
    transform: scale(0.8);
}

:root[data-theme="dark"] .theme-btn .moon-icon {
    opacity: 1;
    transform: scale(1);
}

/* 主内容区基础样式 */
.main-content,
.content-page,
.download-page {
    margin-top: 90px;
    padding: var(--spacing-xxl) 0;
    padding-top: var(--spacing-xxl);
}

/* 英雄区域 */
.hero {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-purple));
    padding: calc(var(--spacing-xxl) * 1.2) 0;
    text-align: center;
    border-radius: var(--border-radius);
    margin-bottom: calc(var(--spacing-xxl) * 1.2);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-content h2 {
    font-family: var(--pixel-font);
    font-size: 2.4rem;
    margin-bottom: var(--spacing-md);
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    line-height: 1.3;
    letter-spacing: -0.5px;
}

/* 个人信息区域 - 头像和名称 */
.profile-section {
    margin-bottom: var(--spacing-xl);
}

.profile-card {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--card-bg);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    gap: calc(var(--spacing-xl) * 1.2);
}

.profile-card:hover {
    box-shadow: 0 0 20px var(--primary-purple), 0 20px 40px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-purple);
}

.profile-avatar {
    position: relative;
}

.profile-avatar img {
    width: 160px;
    height: 160px;
    border-radius: 50%;
    border: 3px solid var(--primary-purple);
    object-fit: cover;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.profile-card:hover .profile-avatar img {
    border-color: var(--secondary-purple);
    transform: scale(1.05);
}

.profile-name-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.profile-name {
    font-family: var(--pixel-font);
    font-size: 2rem;
    margin: 0;
    color: var(--primary-purple);
    font-weight: var(--title-font-weight);
    letter-spacing: 0.5px;
}


/* 个人简介区域 */
.profile-desc-section {
    margin-bottom: var(--spacing-xl);
}

.profile-desc-card {
    background: var(--card-bg);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
}

.profile-desc-card:hover {
    box-shadow: 0 0 20px var(--primary-blue), 0 20px 40px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-blue);
}

.profile-desc {
    margin: 0 0 var(--spacing-lg) 0;
    font-size: 1.15rem;
    line-height: 1.75;
    color: var(--text-light);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-sm);
    border-left: 4px solid var(--primary-blue);
    background-color: rgba(37, 99, 235, 0.03);
    font-weight: var(--body-font-weight);
}

/* 通知卡片 */
.warn-card {
    background: linear-gradient(135deg, rgba(251, 191, 36, 0.1), rgba(251, 191, 36, 0.05));
    padding: var(--spacing-md);
    border-radius: var(--border-radius-sm);
    border: 1px solid #f59e0b;
    box-shadow: var(--shadow-sm);
    border-left: 4px solid #f59e0b;
}

.warn-card h4 {
    color: #d97706;
    margin-bottom: var(--spacing-xs);
    font-family: var(--pixel-font);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.warn-card p {
    color: #92400e;
    font-size: 1rem;
    margin: 0;
    font-weight: 500;
}

/* 更新预告区域 */
.update-section {
    margin-bottom: var(--spacing-xxl);
}

.update-card {
    background: var(--card-bg);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
}

.update-card:hover {
    box-shadow: 0 0 20px var(--accent-orange), 0 20px 40px rgba(0, 0, 0, 0.1);
    border-color: var(--accent-orange);
}

.profile预告 {
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.05), rgba(37, 99, 235, 0.05));
    padding: var(--spacing-md);
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
}

.profile预告 h4 {
    color: var(--accent-orange);
    margin-bottom: var(--spacing-xs);
    font-family: var(--pixel-font);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.profile预告 p {
    color: var(--text-dark);
    font-size: 1rem;
    margin: 0;
    font-weight: 500;
}

.update-subcard {
    background: var(--card-bg);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
    margin-top: var(--spacing-xs);
    text-align: center;
}

.update-title {
    color: var(--text-dark);
    font-size: 1.2rem;
    font-weight: 700;
    margin: 0 0 var(--spacing-xs) 0;
}

.update-time {
    color: var(--text-medium);
    font-size: 0.95rem;
    margin: 0 0 var(--spacing-xxs) 0;
}

.update-countdown {
    color: var(--text-dim);
    font-size: 0.75rem;
    margin: 0;
    font-style: italic;
}

/* 热门视频区域 */
.popular-videos {
    margin-bottom: var(--spacing-xxl);
    position: relative;
}

.section-title,
.page-title {
    font-family: var(--pixel-font);
    font-size: 2rem;
    margin-bottom: var(--spacing-xl);
    color: var(--primary-purple);
    text-align: center;
    padding: var(--spacing-sm) var(--spacing-md);
    display: block;
    font-weight: var(--title-font-weight);
    letter-spacing: -0.5px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.page-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-xxl);
}

.videos-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: calc(var(--spacing-lg) * 1.2);
    padding: var(--spacing-md) 0;
    margin-top: var(--spacing-md);
}

.video-card,
.video-item {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: all var(--transition-normal);
    border: 1px solid var(--border-light);
    cursor: pointer;
    box-shadow: var(--shadow-md);
    position: relative;
}

.video-card:hover,
.video-item:hover {
    box-shadow: 0 0 20px var(--primary-purple), 0 15px 30px rgba(0, 0, 0, 0.15);
    border-color: var(--primary-purple);
}

.video-card:active,
.video-item:active {
    box-shadow: 0 0 15px var(--primary-purple), 0 8px 15px rgba(0, 0, 0, 0.2);
}

.video-thumbnail {
    position: relative;
    width: 100%;
    height: 180px;
    overflow: hidden;
    background-color: var(--border-light);
}

.video-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.video-card:hover .video-thumbnail img,
.video-item:hover .video-thumbnail img {
    transform: scale(1.05);
}

/* 统一视频缩略图覆盖层 */
.video-item .video-thumbnail::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.2), rgba(37, 99, 235, 0.2));
    opacity: 0;
    transition: opacity var(--transition-normal);
    z-index: 1;
}

.video-item:hover .video-thumbnail::before {
    opacity: 1;
}

/* 统一播放按钮样式 */
.play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    background: linear-gradient(135deg, var(--primary-purple), var(--primary-blue));
    color: var(--white);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    opacity: 0;
    transition: all var(--transition-normal);
    z-index: 2;
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--white);
}

.video-card:hover .play-btn,
.video-item:hover .play-btn {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

/* 统一视频时长样式 */
.video-duration {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background-color: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: bold;
    z-index: 2;
    height: auto;
    width: auto;
    display: inline-block;
}

/* 统一视频信息区域 */
.video-info,
.video-details {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    align-items: flex-start;
}

/* 统一视频标题样式 */
.video-title {
    font-size: 1.15rem;
    color: var(--text-dark);
    font-weight: var(--subtitle-font-weight);
    line-height: 1.5;
    transition: color var(--transition-normal);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    letter-spacing: 0.3px;
    width: 100%;
    margin-bottom: var(--spacing-sm);
}

.video-card:hover .video-title,
.video-item:hover .video-title {
    color: var(--primary-purple);
}

.video-stats {
    font-size: 0.9rem;
    color: var(--accent-green);
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xs);
}

.video-stats::before {
    content: '👁️';
    font-size: 1rem;
}

.video-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
    font-size: 0.9rem;
    align-items: center;
}

.video-game-tag,
.game-tag {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-purple));
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: bold;
    margin-bottom: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* 冰封线标签特殊样式 */
.video-game-tag.ice-route {
    background: linear-gradient(135deg, #06B6D4, #14B8A6);
    box-shadow: 0 0 10px rgba(6, 182, 212, 0.5);
    position: relative;
}

.video-game-tag.ice-route::before {
    content: '❄';
    margin-right: 3px;
}

/* 内容页面样式 */
.content-wrapper {
    display: flex;
    gap: var(--spacing-xl);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
}

.category-sidebar {
    width: 280px;
    background: var(--card-bg);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-light);
    height: fit-content;
    position: sticky;
    top: 100px;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.category-sidebar:hover {
    border-color: var(--primary-purple);
    box-shadow: var(--shadow-lg);
    transform: translateX(5px);
}

.category-sidebar h3 {
    font-family: var(--pixel-font);
    font-size: 1.3rem;
    margin-bottom: var(--spacing-lg);
    color: var(--primary-purple);
    text-align: center;
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--border-light);
}

.game-category {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-md);
    background: rgba(124, 58, 237, 0.05);
    border-radius: var(--border-radius-sm);
    border-left: 4px solid var(--primary-purple);
    transition: all var(--transition-normal);
}

.game-category:hover {
    background: rgba(124, 58, 237, 0.1);
    border-left-color: var(--secondary-purple);
    transform: translateX(5px);
}

.game-category h4 {
    font-family: var(--pixel-font);
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
    color: var(--primary-purple);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.chapter-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.chapter-list li {
    margin-bottom: 0;
}

.chapter-link {
    color: var(--text-dark);
    text-decoration: none;
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-normal);
    border: 1px solid transparent;
    background: rgba(124, 58, 237, 0.05);
    font-weight: 500;
    position: relative;
    overflow: hidden;
}

.chapter-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 0;
    height: 100%;
    background: linear-gradient(90deg, rgba(124, 58, 237, 0.2), rgba(37, 99, 235, 0.2));
    transition: width var(--transition-normal);
    z-index: 0;
}

.chapter-link span {
    position: relative;
    z-index: 1;
}

.chapter-link:hover::before,
.chapter-link.active::before {
    width: 100%;
}

.chapter-link:hover,
.chapter-link.active {
    background-color: rgba(124, 58, 237, 0.15);
    color: var(--primary-purple);
    border-color: var(--secondary-purple);
    transform: translateX(10px);
    box-shadow: var(--shadow-sm);
    font-weight: 600;
}

.chapter-link::after {
    content: '▶';
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    opacity: 0;
    transition: all var(--transition-normal);
    color: var(--primary-purple);
    font-weight: bold;
    z-index: 1;
}

.chapter-link:hover::after,
.chapter-link.active::after {
    opacity: 1;
    transform: translateY(-50%) translateX(5px);
}

/* 攻略类型颜色样式 */
/* 中立线 (蓝色) */
.neutral-line .chapter-link,
.sub-chapter-link.neutral-line {
    border-left-color: var(--primary-blue) !important;
}

.neutral-line .chapter-link::before,
.sub-chapter-link.neutral-line::before {
    background: linear-gradient(90deg, rgba(37, 99, 235, 0.2), rgba(96, 165, 250, 0.1)) !important;
}

.neutral-line .chapter-link:hover,
.neutral-line .chapter-link.active,
.sub-chapter-link.neutral-line:hover {
    color: var(--primary-blue) !important;
    border-color: var(--secondary-blue) !important;
    background-color: rgba(37, 99, 235, 0.15) !important;
}

/* 和平线 (绿色) */
.pacifist-line .chapter-link {
    border-left-color: var(--accent-green) !important;
}

.pacifist-line .chapter-link::before {
    background: linear-gradient(90deg, rgba(16, 185, 129, 0.2), rgba(52, 211, 153, 0.1)) !important;
}

.pacifist-line .chapter-link:hover,
.pacifist-line .chapter-link.active {
    color: var(--accent-green) !important;
    border-color: #34D399 !important;
    background-color: rgba(16, 185, 129, 0.15) !important;
}

/* 屠杀线 (红色) */
.genocide-line .chapter-link {
    border-left-color: #EF4444 !important;
}

.genocide-line .chapter-link::before {
    background: linear-gradient(90deg, rgba(239, 68, 68, 0.2), rgba(252, 165, 165, 0.1)) !important;
}

.genocide-line .chapter-link:hover,
.genocide-line .chapter-link.active {
    color: #EF4444 !important;
    border-color: #F87171 !important;
    background-color: rgba(239, 68, 68, 0.15) !important;
}

/* 子章节列表样式 */
.sub-chapter-list {
    margin-left: var(--spacing-lg);
    margin-top: var(--spacing-sm);
    list-style: none;
}

.sub-chapter-link {
    color: var(--text-dark);
    text-decoration: none;
    display: block;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-normal);
    border: 1px solid transparent;
    background: rgba(124, 58, 237, 0.03);
    font-weight: 500;
    font-size: 0.9rem;
    position: relative;
    overflow: hidden;
    border-left: 3px solid transparent;
}

.sub-chapter-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 0;
    height: 100%;
    background: linear-gradient(90deg, rgba(124, 58, 237, 0.1), rgba(37, 99, 235, 0.05));
    transition: width var(--transition-normal);
    z-index: 0;
}

.sub-chapter-link span {
    position: relative;
    z-index: 1;
}

.sub-chapter-link:hover::before {
    width: 100%;
}

.sub-chapter-link:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-sm);
    font-weight: 600;
}

/* 攻略内容区域样式 */
.guide-content {
    flex: 1;
    background: var(--card-bg);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-md);
    min-height: 500px;
}

.guide-intro h3 {
    font-family: var(--pixel-font);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--primary-purple);
}

.guide-intro p {
    font-size: 1.1rem;
    color: var(--text-light);
    line-height: 1.7;
}

/* 视频网格 */
.video-grid {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: var(--spacing-lg);
}

.chapter-tag {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-weight: bold;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all var(--transition-normal);
}

.chapter-tag:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.views {
    color: var(--accent-orange);
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.views::before {
    content: '👁️';
    font-size: 1rem;
}

/* 资源下载页面样式 */
.resource-categories {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
    justify-content: center;
}

.category-btn {
    background-color: var(--card-bg);
    color: var(--text-dark);
    border: var(--border-width) solid var(--primary-purple);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius);
    font-family: var(--main-font);
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
}

.category-btn:hover,
.category-btn.active {
    background-color: var(--primary-purple);
    color: var(--white);
    border-color: var(--primary-cyan);
    transform: translateY(-3px);
}

.resource-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.resource-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--card-bg);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    border: var(--border-width) solid var(--border-light);
    transition: all 0.3s ease;
}

.resource-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
    border-color: var(--primary-cyan);
}

.resource-info {
    flex: 1;
}

.resource-name {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-xs);
    color: var(--primary-cyan);
    font-weight: bold;
}

.resource-desc {
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.resource-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    font-size: 0.9rem;
    color: var(--accent-orange);
}

.resource-actions {
    margin-left: var(--spacing-lg);
    position: relative;
    overflow: hidden;
}

.download-btn {
    background-color: var(--primary-cyan);
    color: var(--dark-gray);
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius);
    font-family: var(--main-font);
    font-weight: bold;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    border: var(--border-width) solid transparent;
    position: relative;
    overflow: hidden;
}

.download-btn:hover {
    background-color: var(--primary-purple);
    color: var(--white);
    border-color: var(--primary-cyan);
    transform: translateY(-3px);
}

/* 页脚样式 */
.footer {
    background-color: var(--card-bg);
    border-top: var(--border-width) solid var(--primary-purple);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-info h3 {
    font-family: var(--pixel-font);
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-cyan);
}

.footer-links h4,
.footer-social h4 {
    font-family: var(--pixel-font);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-cyan);
}

.footer-links a {
    display: block;
    color: var(--text-dark);
    text-decoration: none;
    margin-bottom: var(--spacing-xs);
    transition: color 0.3s ease;
}

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

.social-icons {
    display: flex;
    gap: var(--spacing-sm);
}

.social-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--border-light);
    color: var(--text-dark);
    text-decoration: none;
    border-radius: 50%;
    transition: all 0.3s ease;
    font-size: 1.2rem;
}

.social-icon:hover {
    background-color: var(--primary-cyan);
    color: var(--white);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-light);
    color: var(--text-light);
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideDown {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}



/* 滚动动画 */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* 响应式设计 */
@media (max-width: 0px) {
    .content-wrapper {
        flex-direction: column;
    }
    
    .category-sidebar {
        width: 100%;
        position: static;
    }
    
    .chapter-list {
        display: flex;
        flex-wrap: wrap;
        gap: var(--spacing-xs);
    }
    
    .chapter-link {
        display: inline-block;
    }
}

@media (max-width: 0px) {
    /* 导航栏响应式 */
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 80px;
        flex-direction: column;
        background-color: var(--dark-gray);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: var(--spacing-lg) 0;
        border-bottom: var(--border-width) solid var(--primary-purple);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    /* 英雄区域响应式 */
    .hero-content h2 {
        font-size: 1.5rem;
    }
    
    /* 个人信息响应式 */
    .profile-card {
        flex-direction: column;
        text-align: center;
    }
    
    .profile-avatar {
        margin-right: 0;
        margin-bottom: var(--spacing-lg);
    }
    
    /* 视频网格响应式 */
    .video-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
    
    /* 热门视频区域响应式 */
    .videos-container {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: var(--spacing-lg);
    }
    
    /* 视频容器响应式 */
    .video-container {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: var(--spacing-md);
        padding: var(--spacing-lg) 0;
    }
    
    /* 资源项响应式 */
    .resource-item {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .resource-actions {
        margin-left: 0;
        margin-top: var(--spacing-md);
        width: 100%;
    }
    
    .download-btn {
        width: 100%;
    }
    
    /* 页脚响应式 */
    .footer-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    /* 字体响应式 */
    .page-title {
        font-size: 1.5rem;
    }
    
    .profile-info h3 {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    /* 视频卡片响应式 */
    .videos-container {
        gap: var(--spacing-sm);
        grid-template-columns: 1fr;
    }
    
    /* 视频容器响应式 */
    .video-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
        padding: var(--spacing-md) 0;
    }
    
    .video-card {
        min-width: auto;
    }
    
    .video-thumbnail {
        height: 150px;
    }
    
    /* 资源元信息响应式 */
    .resource-meta {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    /* 字体响应式 */
    .section-title {
        font-size: 1.2rem;
    }
    
    .video-title {
        font-size: 0.95rem;
    }
    
    .resource-name {
        font-size: 1rem;
    }
    
    /* 导航栏响应式 */
    .logo h1 {
        font-size: 1.2rem;
    }
}