:root {
    --primary: #4A9CD8;
    --primary-rgb: 74, 156, 216;
    --primary-dark: #3B86BF;
    --primary-dark-rgb: 59, 134, 191;
    --accent: #7CC4A8;
    --accent-rgb: 124, 196, 168;
    --secondary: #E8B896;
    --secondary-rgb: 232, 184, 150;

    --text: #2C3E50;
    --text-rgb: 44, 62, 80;
    --text-secondary: #5A6C7D;
    --text-secondary-rgb: 90, 108, 125;
    --text-light: #FFFFFF;
    --text-light-rgb: 255, 255, 255;

    --bg: #F9F8F4;
    --bg-rgb: 249, 248, 244;
    --card-bg: #FFFFFF;
    --card-bg-rgb: 255, 255, 255;
    --border: #E8E6DF;
    --border-rgb: 232, 230, 223;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.03), 0 1px 2px rgba(0, 0, 0, 0.02);
    --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.06), 0 2px 6px rgba(0, 0, 0, 0.03);
    --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.04), 0 8px 24px rgba(0, 0, 0, 0.06);
    --shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.06), 0 12px 36px rgba(0, 0, 0, 0.08);

    --radius: 20px;
    --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --gradient-primary: linear-gradient(135deg, var(--primary), var(--accent));

    --glass-bg: rgba(var(--card-bg-rgb), 0.72);
    --glass-border: rgba(var(--border-rgb), 0.6);
    --glass-shadow: 0 1px 4px rgba(var(--dark-bg-rgb), 0.06), 0 0 0 0.5px rgba(0, 0, 0, 0.04);

    --dark-bg-rgb: 44, 62, 80;

    --hero-bg-rgb: 249, 248, 244;
    --hero-primary-rgb: 74, 156, 216;
    --hero-accent-rgb: 124, 196, 168;
    --hero-text-rgb: 44, 62, 80;
    --hero-text-a: 0.88;
    --hero-subtext-a: 0.58;
}

[data-theme="dark"] {
    --primary: #5BADE0;
    --primary-rgb: 91, 173, 224;
    --primary-dark: #4A9CD8;
    --primary-dark-rgb: 74, 156, 216;
    --accent: #7CC4A8;
    --accent-rgb: 124, 196, 168;
    --secondary: #D4A878;
    --secondary-rgb: 212, 168, 120;

    --text: #E2E8F0;
    --text-rgb: 226, 232, 240;
    --text-secondary: #A0B0C0;
    --text-secondary-rgb: 160, 176, 192;
    --text-light: #FFFFFF;
    --text-light-rgb: 255, 255, 255;

    --bg: #0D1117;
    --bg-rgb: 13, 17, 23;
    --card-bg: #161B22;
    --card-bg-rgb: 22, 27, 34;
    --border: #2A3441;
    --border-rgb: 42, 52, 65;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.25);
    --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.2), 0 8px 24px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.25), 0 12px 36px rgba(0, 0, 0, 0.35);

    --glass-bg: rgba(var(--card-bg-rgb), 0.72);
    --glass-border: rgba(var(--border-rgb), 0.6);
    --glass-shadow: 0 1px 4px rgba(0, 0, 0, 0.15), 0 0 0 0.5px rgba(255, 255, 255, 0.06);

    --hero-bg-rgb: 13, 17, 23;
    --hero-primary-rgb: 91, 173, 224;
    --hero-accent-rgb: 124, 196, 168;
    --hero-text-rgb: 226, 232, 240;
    --hero-text-a: 1;
    --hero-subtext-a: 0.7;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    outline: none;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    background-color: var(--bg);
    color: var(--text);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: background-color 0.3s ease, color 0.3s ease;
}

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

/* 当导航栏不固定时 */
.no-sticky-nav .main-content {
    padding-top: 0;
}

.no-sticky-nav .navbar {
    position: relative;
    width: 100%;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
}

/* 禁用动画 */
.no-animations * {
    animation-duration: 0s !important;
    animation: none !important;
    transition: none !important;
}

/* 紧凑布局 */
.compact-layout {
    --spacing-compact: 0.5;
}

.compact-layout .markdown-content,
.compact-layout .docs-content {
    line-height: 1.6;
}

.compact-layout .markdown-content h1,
.compact-layout .markdown-content h2,
.compact-layout .markdown-content h3,
.compact-layout .markdown-content h4,
.compact-layout .markdown-content h5,
.compact-layout .markdown-content h6 {
    margin-top: 1.5rem;
    margin-bottom: 0.8rem;
}

.compact-layout .markdown-content h1 {
    font-size: 2rem;
    padding-bottom: 0.6rem;
}

.compact-layout .markdown-content h2 {
    font-size: 1.6rem;
    padding-bottom: 0.5rem;
}

.compact-layout .markdown-content h3 {
    font-size: 1.3rem;
}

.compact-layout .markdown-content p {
    margin-bottom: 0.8rem;
}

.compact-layout .markdown-content ul,
.compact-layout .markdown-content ol {
    margin: 0.8rem 0 1rem 0;
    padding-left: 1.5rem;
}

.compact-layout .markdown-content li {
    margin-bottom: 0.4rem;
}

.compact-layout .markdown-content pre {
    padding: 1rem;
    margin: 1rem 0;
}

.compact-layout .markdown-content blockquote {
    padding: 0.8rem 1.2rem;
    margin: 1rem 0;
}

.compact-layout .docs-layout {
    gap: 1.5rem;
}

.compact-layout .docs-sidebar,
.compact-layout .table-of-contents {
    padding: 1rem;
}

.compact-layout .docs-main {
    padding: 1.5rem;
}

/* 动画效果 */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(10px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes subtlePulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.01); }
}

/* 加载动画 */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader-icon {
    height: 100px;
    width: 100px;
    border-radius: 50%;
    object-fit: contain;
    animation: 
        fadeIn 0.5s ease-out forwards,
        subtlePulse 2s ease-in-out 0.5s infinite;
    filter: 
        drop-shadow(0 0 8px rgba(var(--primary-rgb), 0.3));
    transform-origin: center;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 65px;
    background: var(--glass-bg);
    color: var(--text);
    padding: 0 1.5rem;
    box-shadow: 0 1px 0 var(--glass-border), 0 0 0 0.5px rgba(0, 0, 0, 0.04);
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    backdrop-filter: blur(40px) saturate(200%);
    -webkit-backdrop-filter: blur(40px) saturate(200%);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    text-decoration: none;
    color: var(--text);
    font-weight: 600;
    font-size: 1.2rem;
}

.logo-icon {
    width: 32px;
    height: 32px;
    fill: var(--primary);
    border-radius: 8px;
}

.nav-links {
    display: flex;
    gap: 0.4rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.5rem 0.7rem;
    border-radius: var(--radius);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
}

.nav-link:hover, .nav-link.active {
    color: var(--primary);
    background: rgba(var(--primary-rgb), 0.08);
}

.nav-link i {
    font-size: 1rem;
}

/* 桌面端仅显示图标，隐藏文字 */
.nav-link .nav-text {
    display: none;
}

/* 主内容区域 */
.main-content {
    flex: 1;
    padding-top: 65px;
    position: relative;
    transition: padding-top 0.3s ease;
}

.view-container {
    display: none;
    animation: fadeIn 0.4s ease-out;
}

.view-container.active {
    display: block;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: white;
    padding: 0.7rem 1.6rem;
    border-radius: 50px;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    border: none;
    text-decoration: none;
    box-shadow: 0 1px 4px rgba(var(--primary-rgb), 0.15), 0 4px 12px rgba(var(--primary-rgb), 0.08);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    -webkit-tap-highlight-color: transparent;
    letter-spacing: 0.01em;
}

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

.btn-secondary {
    background: var(--accent);
    color: white;
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 1px solid var(--primary);
    box-shadow: none;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(var(--primary-rgb), 0.18), 0 8px 20px rgba(var(--primary-rgb), 0.12);
}

.btn:active {
    transform: scale(0.97) translateY(0);
    box-shadow: 0 1px 2px rgba(var(--primary-rgb), 0.1);
}

.btn-outline:hover {
    background: rgba(var(--primary-rgb), 0.06);
    transform: translateY(-1px);
}

/* 模态框样式 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(var(--dark-bg-rgb), 0.4);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--glass-bg);
    border-radius: 24px;
    width: 90%;
    max-width: 700px;
    max-height: 90vh;
    overflow: hidden;
    transform: translateY(20px) scale(0.98);
    transition: transform 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: var(--shadow-hover), 0 0 0 0.5px rgba(0, 0, 0, 0.06);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(40px) saturate(180%);
    -webkit-backdrop-filter: blur(40px) saturate(180%);
}

.modal-overlay.active .modal {
    transform: translateY(0) scale(1);
}

.modal-header {
    padding: 1.5rem;
    background: var(--card-bg);
    color: var(--text);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border);
}

.modal-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin: 0;
}

.close-btn {
    background: rgba(0, 0, 0, 0.06);
    border: none;
    color: var(--text-secondary);
    font-size: 1.1rem;
    cursor: pointer;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s ease;
}

.close-btn:hover {
    color: var(--text);
    background: rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] .close-btn {
    background: rgba(255, 255, 255, 0.08);
}

[data-theme="dark"] .close-btn:hover {
    background: rgba(255, 255, 255, 0.14);
}

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
    max-height: calc(90vh - 80px);
}

/* 页脚 */
footer {
    background-color: var(--card-bg);
    color: var(--text);
    padding: 3rem 0 1.5rem;
    margin-top: 3rem;
    border-top: 1px solid var(--border);
    position: relative;
    overflow: hidden;
    box-shadow: 0 -1px 0 rgba(0, 0, 0, 0.03);
}

.footer-chan {
    position: absolute;
    left: 0;
    bottom: 0;
    height: 100%;
    max-height: 420px;
    width: auto;
    object-fit: contain;
    z-index: 0;
    pointer-events: none;
}

footer > .container {
    position: relative;
    z-index: 1;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto 2rem;
    padding: 0 1.5rem;
}

.footer-column h3 {
    font-size: 1.1rem;
    margin-bottom: 1.2rem;
    color: var(--text);
    font-weight: 600;
}

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

.footer-links li {
    margin-bottom: 0.7rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
}

.footer-links a:hover {
    color: var(--primary);
    transform: translateX(2px);
}

.footer-links img {
    width: 1em;
    height: 1em;
    vertical-align: middle;
    object-fit: contain;
}

.copyright {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 0.9rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.5rem 1.5rem 0;
}

.legacy-market-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    border-radius: 14px;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    border: 1px solid var(--border);
    background-color: var(--card-bg);
}

.legacy-market-link:hover {
    color: var(--primary);
    border-color: var(--primary);
    background-color: rgba(var(--primary-rgb), 0.04);
    transform: translateY(-1px);
}

.legacy-market-link i {
    font-size: 0.85rem;
}

/* 汉堡菜单样式 */
.hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 101;
}

.hamburger-line {
    display: block;
    width: 22px;
    height: 2px;
    background-color: var(--text);
    margin: 4px 0;
    transition: all 0.3s ease;
    border-radius: 1px;
}

/* 代码行号样式 */
.show-line-numbers pre[class*="language-"] {
    position: relative;
    padding-left: 3.8em;
    counter-reset: linenumber;
}

.show-line-numbers pre[class*="language-"] > code {
    position: relative;
    white-space: inherit;
}

.line-numbers-rows {
    position: absolute;
    pointer-events: none;
    top: 0;
    font-size: 100%;
    left: -3.8em;
    width: 3em;
    letter-spacing: -1px;
    border-right: 1px solid var(--border);
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.line-numbers-rows > span {
    display: block;
    counter-increment: linenumber;
}

.line-numbers-rows > span:before {
    content: counter(linenumber);
    color: var(--text-secondary);
    display: block;
    padding-right: 0.8em;
    text-align: right;
}

/* Prism.js 行号插件样式 */
pre.line-numbers {
    position: relative;
    padding-left: 3.8em;
    counter-reset: linenumber;
}

pre.line-numbers > code {
    position: relative;
    white-space: inherit;
}

.line-numbers .line-numbers-rows {
    position: absolute;
    pointer-events: none;
    top: 0;
    font-size: 100%;
    left: -3.8em;
    width: 3em;
    letter-spacing: -1px;
    border-right: 1px solid var(--border);
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.line-numbers-rows > span {
    display: block;
    counter-increment: linenumber;
}

.line-numbers-rows > span:before {
    content: counter(linenumber);
    color: var(--text-secondary);
    display: block;
    padding-right: 0.8em;
    text-align: right;
}

/* 导航容器 */
.nav-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: nowrap;
}

.nav-container > .nav-links {
    flex-shrink: 1;
    min-width: 0;
}

/* 主题切换按钮 */
.theme-toggle-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: none;
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text-secondary);
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    flex-shrink: 0;
}

.theme-toggle-btn:hover {
    color: var(--primary);
    border-color: var(--primary);
    background: rgba(var(--primary-rgb), 0.06);
    transform: scale(1.04);
}

/* 全局语言切换器 */
.lang-switcher {
    position: relative;
    margin-left: auto;
    flex-shrink: 0;
}

.lang-switcher-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    background: none;
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 0.4rem 0.65rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    line-height: 1;
    white-space: nowrap;
}

.lang-switcher-btn:hover {
    color: var(--primary);
    border-color: var(--primary);
    background: rgba(var(--primary-rgb), 0.06);
    transform: scale(1.02);
}

.lang-switcher-btn .fa-globe {
    font-size: 1rem;
}

.lang-switcher-btn .lang-label {
    font-weight: 500;
}

.lang-switcher-btn .fa-chevron-down {
    font-size: 0.6rem;
    transition: transform 0.2s ease;
}

.lang-switcher.open .lang-switcher-btn .fa-chevron-down {
    transform: rotate(180deg);
}

.lang-switcher-dropdown {
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    min-width: 150px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 14px;
    box-shadow: var(--shadow-card), 0 0 0 0.5px rgba(0, 0, 0, 0.04);
    backdrop-filter: blur(40px) saturate(180%);
    -webkit-backdrop-filter: blur(40px) saturate(180%);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px) scale(0.96);
    transition: all 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    z-index: 200;
    overflow: hidden;
}

.lang-switcher.open .lang-switcher-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.lang-switcher-option {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    width: 100%;
    padding: 0.65rem 1rem;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 0.88rem;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
    text-align: left;
}

.lang-switcher-option:hover {
    background: rgba(var(--primary-rgb), 0.08);
    color: var(--primary);
}

.lang-switcher-option.active {
    color: var(--primary);
    font-weight: 600;
}

.lang-switcher-option.active::before {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 0.75rem;
    margin-right: 0.1rem;
}

@media (max-width: 768px) {
    .hamburger {
        display: block;
    }
    
.nav-container {
    position: fixed;
    top: 65px;
    left: 0;
    width: 100%;
    background: var(--glass-bg);
    padding: 1rem;
    box-shadow: var(--shadow-card);
    z-index: 100;
    transform: translateY(-150%);
    transition: transform 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    border-bottom: 1px solid var(--glass-border);
    backdrop-filter: blur(40px) saturate(180%);
    -webkit-backdrop-filter: blur(40px) saturate(180%);
    flex-direction: column;
}

.nav-container.active {
    transform: translateY(0);
}

.nav-links {
    flex-direction: column;
    gap: 0.3rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1rem 1.2rem;
    border-radius: var(--radius);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    -webkit-tap-highlight-color: transparent;
}

.nav-link:hover, .nav-link.active {
    background: rgba(var(--primary-rgb), 0.1);
    color: var(--primary);
}

.nav-link:active {
    transform: scale(0.98);
}

    /* 移动端恢复导航文字 */
    .nav-link .nav-text {
        display: inline;
    }
    
    /* 汉堡菜单动画 */
    .hamburger.active .hamburger-line:nth-child(1) {
        transform: translateY(6px) rotate(45deg);
    }
    
    .hamburger.active .hamburger-line:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active .hamburger-line:nth-child(3) {
        transform: translateY(-6px) rotate(-45deg);
    }

    .lang-switcher {
        margin-left: 0;
        margin-top: 0.5rem;
        padding-top: 0.5rem;
        border-top: 1px solid var(--border);
    }

    .theme-toggle-btn {
        width: auto;
        margin: 0;
        padding: 0.8rem 1.2rem;
    }

    .lang-switcher-btn {
        width: 100%;
        justify-content: center;
        padding: 0.65rem 1rem;
        border-radius: var(--radius);
        background: rgba(var(--primary-rgb), 0.04);
    }

    .lang-switcher-dropdown {
        position: static;
        transform: none;
        box-shadow: none;
        border: none;
        border-radius: 0;
        margin-top: 0.3rem;
        opacity: 0;
        visibility: hidden;
        max-height: 0;
        transition: opacity 0.2s ease, visibility 0.2s, max-height 0.25s ease;
    }

    .lang-switcher.open .lang-switcher-dropdown {
        opacity: 1;
        visibility: visible;
        transform: none;
        max-height: 200px;
    }

    .lang-switcher-option {
        padding: 0.8rem 1.2rem;
        border-radius: var(--radius);
        font-size: 0.95rem;
    }

    .footer-chan {
        height: 140px;
        max-height: none;
    }
}

@media (max-width: 480px) {
    .footer-chan {
        height: 100px;
        max-height: none;
    }
}