:root {
    --primary: #5a63df;
    --primary-rgb: 90, 99, 223;
    --primary-dark: #555AB8;
    --primary-dark-rgb: 85, 90, 184;
    --accent: #5ED1B3;
    --accent-rgb: 94, 209, 179;
    --secondary: #F5A623;
    --secondary-rgb: 245, 166, 35;
    
    --text: #2D3748;
    --text-rgb: 45, 55, 72;
    --text-secondary: #4A5568;
    --text-secondary-rgb: 74, 85, 104;
    --text-light: #FFFFFF;
    --text-light-rgb: 255, 255, 255;
    
    --bg: #FAFAFA;
    --bg-rgb: 250, 250, 250;
    --card-bg: #FFFFFF;
    --card-bg-rgb: 255, 255, 255;
    --border: #E2E8F0;
    --border-rgb: 226, 232, 240;
    
    --shadow-sm: 0 2px 10px rgba(var(--text-rgb), 0.05);
    --shadow-md: 0 6px 20px rgba(var(--text-rgb), 0.08);

    --radius: 12px;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --gradient-primary: linear-gradient(135deg, var(--primary), var(--accent));

    --glass-bg: rgba(var(--card-bg-rgb), 0.8);
    --glass-border: rgba(var(--card-bg-rgb), 0.18);
    --glass-shadow: 0 8px 32px 0 rgba(var(--dark-bg-rgb), 0.37);

    --dark-bg-rgb: 45, 55, 72;
}

[data-theme="dark"] {
    --primary: #5A63B0;
    --primary-rgb: 90, 99, 176;
    --primary-dark: #4A529A;
    --primary-dark-rgb: 74, 82, 154;
    --accent: #4AB89D;
    --accent-rgb: 74, 184, 157;
    --secondary: #E69500;
    --secondary-rgb: 230, 149, 0;
    
    --text: #E2E8F0;
    --text-rgb: 226, 232, 240;
    --text-secondary: #CBD5E0;
    --text-secondary-rgb: 203, 213, 224;
    --text-light: #FFFFFF;
    --text-light-rgb: 255, 255, 255;
    
    --bg: #121212;
    --bg-rgb: 18, 18, 18;
    --card-bg: #1E1E2C;
    --card-bg-rgb: 30, 30, 44;
    --border: #2D3748;
    --border-rgb: 45, 55, 72;
    
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.3);
    
    --glass-bg: rgba(var(--card-bg-rgb), 0.8);
    --glass-border: rgba(var(--card-bg-rgb), 0.18);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

* {
    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;
}

/* 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(--card-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%;
    background: var(--glass-bg);
    color: var(--text);
    padding: 1rem 1.5rem;
    box-shadow: var(--glass-shadow);
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.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: 1rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.5rem 1rem;
    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), 0.1);
}

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

/* 主内容区域 */
.main-content {
    flex: 1;
    padding-top: 70px;
    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;
    background: var(--primary);
    color: white;
    padding: 0.7rem 1.6rem;
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
    border: none;
    text-decoration: none;
    box-shadow: 0 2px 8px rgba(var(--primary-rgb), 0.2);
}

.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 {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(var(--primary-rgb), 0.3);
}

/* 模态框样式 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(var(--dark-bg-rgb), 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease;
}

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

.modal {
    background: var(--glass-bg);
    border-radius: var(--radius);
    width: 90%;
    max-width: 700px;
    max-height: 90vh;
    overflow: hidden;
    transform: translateY(20px);
    transition: transform 0.3s ease;
    box-shadow: var(--glass-shadow);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

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

.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: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.3rem;
    cursor: pointer;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

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

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

/* 页脚 */
footer {
    background: var(--glass-bg);
    color: var(--text);
    padding: 3rem 0 1.5rem;
    margin-top: 3rem;
    border-top: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.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: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
}

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

.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: var(--radius);
    transition: var(--transition);
    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), 0.05);
}

.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;
}

@media (max-width: 768px) {
    .hamburger {
        display: block;
    }
    
    .nav-container {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: var(--card-bg);
        padding: 1rem;
        box-shadow: var(--shadow-md);
        z-index: 100;
        transform: translateY(-150%);
        transition: transform 0.3s ease;
        border-bottom: 1px solid var(--border);
    }
    
    .nav-container.active {
        transform: translateY(0);
    }
    
    .nav-links {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .nav-link {
        display: flex;
        align-items: center;
        gap: 0.8rem;
        padding: 0.8rem 1rem;
        border-radius: var(--radius);
        transition: var(--transition);
    }
    
    .nav-link:hover, .nav-link.active {
        background: rgba(var(--primary-rgb), 0.1);
    }
    
    /* 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);
    }
}