/* ============================================
   博客系统现代化样式 - 优化版
   设计理念：简洁、现代、优雅
   ============================================ */

/* ===== CSS 变量定义 ===== */
:root {
    /* 主色调 - 现代蓝紫渐变 */
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --primary-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    
    /* 辅助色 */
    --secondary-color: #10b981;
    --secondary-dark: #059669;
    --secondary-light: #34d399;
    
    /* 强调色 */
    --accent-color: #f59e0b;
    --accent-light: #fbbf24;
    --accent-gradient: linear-gradient(135deg, #f59e0b 0%, #f97316 100%);
    
    /* 文字颜色 */
    --text-color: #1e293b;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    --text-white: #ffffff;
    
    /* 背景颜色 */
    --bg-color: #f8fafc;
    --bg-light: #f1f5f9;
    --bg-white: #ffffff;
    --bg-dark: #0f172a;
    
    /* 卡片背景 */
    --card-bg: #ffffff;
    --card-bg-hover: #fafafa;
    
    /* 边框颜色 */
    --border-color: #e2e8f0;
    --border-light: #f1f5f9;
    --border-dark: #cbd5e1;
    
    /* 阴影 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-colored: 0 10px 15px -3px rgba(99, 102, 241, 0.2);
    
    /* 圆角 */
    --radius-sm: 6px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* 过渡 */
    --transition-fast: 0.15s ease;
    --transition: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* 字体 */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'Fira Code', 'Consolas', monospace;
}

/* ===== 基础样式重置 ===== */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    font-weight: 400;
    position: relative;
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 动态背景效果 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 30%, rgba(99, 102, 241, 0.08) 0%, transparent 30%),
        radial-gradient(circle at 80% 70%, rgba(16, 185, 129, 0.06) 0%, transparent 30%),
        radial-gradient(circle at 40% 80%, rgba(139, 92, 246, 0.05) 0%, transparent 30%),
        radial-gradient(circle at 60% 20%, rgba(245, 158, 11, 0.04) 0%, transparent 30%);
    background-size: 100% 100%;
    z-index: -1;
    animation: backgroundShift 25s ease-in-out infinite;
    pointer-events: none;
}

@keyframes backgroundShift {
    0%, 100% { background-position: 0% 0%; }
    25% { background-position: 100% 0%; }
    50% { background-position: 100% 100%; }
    75% { background-position: 0% 100%; }
}

/* ===== 主内容区 ===== */
.m-container, .m-container-small {
    flex: 1;
    padding-top: 110px !important;
}

.m-container {
    max-width: 85% !important;
    width: 85% !important;
    margin: auto !important;
}

.m-container-small {
    max-width: 85% !important;
    width: 85% !important;
    margin: auto !important;
}

/* 底部导航固定在底部 */
.ui.vertical.segment.m-padded-tb-massive {
    margin-top: auto !important;
}

/* 导航栏已移至 _fragments.html 中定义 */

/* ===== 卡片样式 - 现代玻璃拟态 ===== */
.ui.segment {
    background: rgba(255, 255, 255, 0.95) !important;
    border: 1px solid rgba(255, 255, 255, 0.6) !important;
    border-radius: var(--radius-lg) !important;
    box-shadow: var(--shadow-md) !important;
    transition: all var(--transition) !important;
    overflow: hidden !important;
    position: relative !important;
    backdrop-filter: blur(10px) !important;
}

.ui.segment::before {
    content: '' !important;
    position: absolute !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    height: 100% !important;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), rgba(139, 92, 246, 0.03)) !important;
    z-index: 0 !important;
    pointer-events: none !important;
    opacity: 0 !important;
    transition: opacity var(--transition) !important;
}

.ui.segment:hover::before {
    opacity: 1 !important;
}

.ui.segment:hover {
    box-shadow: var(--shadow-xl) !important;
    transform: translateY(-6px) scale(1.01) !important;
    border-color: rgba(99, 102, 241, 0.3) !important;
}

.ui.segment > * {
    position: relative !important;
    z-index: 1 !important;
}

/* 卡片头部 */
.ui.top.attached.segment {
    border-radius: 0 !important;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(99, 102, 241, 0.05)) !important;
    border-bottom: 1px solid var(--border-color) !important;
}

/* 文章内容容器 - 去除圆角 */
.ui.attached.segment:not(.top):not(.bottom) {
    border-radius: 0 !important;
}

/* 卡片底部 */
.ui.bottom.attached.segment {
    border-radius: 0 !important;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.03), rgba(255, 255, 255, 0.95)) !important;
}

/* 侧边栏卡片组 */
.ui.segments {
    border-radius: var(--radius-lg) !important;
    overflow: hidden !important;
    box-shadow: var(--shadow) !important;
    transition: all var(--transition) !important;
    border: 1px solid var(--border-color) !important;
    background: rgba(255, 255, 255, 0.9) !important;
}

.ui.segments:hover {
    box-shadow: var(--shadow-md) !important;
    transform: translateY(-2px) !important;
}

.ui.segments .ui.segment {
    border-radius: 0 !important;
    border-left: none !important;
    border-right: none !important;
    border-bottom: 1px solid var(--border-color) !important;
    background: transparent !important;
    box-shadow: none !important;
}

.ui.segments .ui.segment:last-child {
    border-bottom: none !important;
    border-radius: 0 0 var(--radius-lg) var(--radius-lg) !important;
}

.ui.segments .ui.segment:first-child {
    border-radius: var(--radius-lg) var(--radius-lg) 0 0 !important;
}

.ui.segments .ui.secondary.segment {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(99, 102, 241, 0.04)) !important;
    color: var(--text-color) !important;
    font-weight: 600 !important;
    border-bottom: 1px solid var(--border-color) !important;
}

.ui.segments .ui.secondary.segment h4 {
    color: var(--primary-color) !important;
    margin: 0 !important;
    font-weight: 600 !important;
}

/* ===== 按钮样式 - 现代渐变 ===== */
.ui.button {
    border-radius: var(--radius-sm) !important;
    transition: all var(--transition) !important;
    font-weight: 500 !important;
    position: relative !important;
    overflow: hidden !important;
    border: none !important;
    letter-spacing: 0.5px !important;
}

.ui.button::before {
    content: '' !important;
    position: absolute !important;
    top: 50% !important;
    left: 50% !important;
    width: 0 !important;
    height: 0 !important;
    border-radius: 50% !important;
    background: rgba(255, 255, 255, 0.3) !important;
    transform: translate(-50%, -50%) !important;
    transition: width 0.6s ease, height 0.6s ease !important;
}

.ui.button:active::before {
    width: 300px !important;
    height: 300px !important;
}

.ui.button:hover {
    transform: translateY(-3px) !important;
    box-shadow: var(--shadow-lg) !important;
}

.ui.button:active {
    transform: translateY(0) !important;
}

/* 主按钮 */
.ui.primary.button,
.ui.blue.button {
    background: var(--primary-gradient) !important;
    color: white !important;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4) !important;
}

.ui.primary.button:hover,
.ui.blue.button:hover {
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5) !important;
    transform: translateY(-2px) !important;
}

/* 次要按钮 */
.ui.teal.button {
    background: linear-gradient(135deg, var(--secondary-color), var(--secondary-light)) !important;
    color: white !important;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.4) !important;
}

/* 轮廓按钮 */
.ui.blue.basic.button {
    color: var(--primary-color) !important;
    border: 2px solid var(--primary-color) !important;
    background: transparent !important;
    position: relative !important;
    overflow: hidden !important;
}

.ui.blue.basic.button::after {
    content: '' !important;
    position: absolute !important;
    top: 0 !important;
    left: 0 !important;
    width: 0 !important;
    height: 100% !important;
    background: var(--primary-gradient) !important;
    transition: width var(--transition) !important;
    z-index: -1 !important;
}

.ui.blue.basic.button:hover::after {
    width: 100% !important;
}

.ui.blue.basic.button:hover {
    color: white !important;
    border-color: transparent !important;
}

/* 圆形按钮 */
.ui.circular.icon.button {
    border-radius: 50% !important;
    width: 40px !important;
    height: 40px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
}

/* ===== 标签样式 ===== */
.ui.label {
    border-radius: var(--radius-full) !important;
    font-weight: 500 !important;
    padding: 0.4em 1em !important;
    transition: all var(--transition) !important;
    position: relative !important;
    overflow: hidden !important;
    display: inline-flex !important;
    align-items: center !important;
    gap: 0.5rem !important;
    border: none !important;
}

.ui.label:hover {
    transform: translateY(-2px) !important;
    box-shadow: var(--shadow) !important;
}

/* 蓝色标签 */
.ui.blue.basic.label {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(99, 102, 241, 0.05)) !important;
    color: var(--primary-color) !important;
    border: 1px solid rgba(99, 102, 241, 0.3) !important;
}

.ui.blue.basic.label:hover {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(99, 102, 241, 0.1)) !important;
    box-shadow: var(--shadow-colored) !important;
}

/* 橙色标签 */
.ui.orange.basic.label {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(245, 158, 11, 0.05)) !important;
    color: var(--accent-color) !important;
    border: 1px solid rgba(245, 158, 11, 0.3) !important;
}

.ui.orange.basic.label:hover {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.2), rgba(245, 158, 11, 0.1)) !important;
}

/* 青色标签 */
.ui.teal.basic.label {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(16, 185, 129, 0.05)) !important;
    color: var(--secondary-color) !important;
    border: 1px solid rgba(16, 185, 129, 0.3) !important;
}

.ui.teal.basic.label:hover {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.2), rgba(16, 185, 129, 0.1)) !important;
}

/* 指向标签 */
.ui.left.pointing.label::before {
    background: inherit !important;
}

/* ===== 输入框样式 ===== */
.ui.input input {
    transition: all var(--transition) !important;
    background: var(--bg-light) !important;
    border: 2px solid var(--border-color) !important;
    color: var(--text-color) !important;
    border-radius: var(--radius) !important;
    padding: 0.75em 1em !important;
    font-size: 1rem !important;
}

.ui.input input:hover {
    border-color: var(--border-dark) !important;
}

.ui.input input:focus {
    border-color: var(--primary-color) !important;
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1) !important;
    background: white !important;
}

.ui.input input::placeholder {
    color: var(--text-light) !important;
}

/* 图标输入框 */
.ui.left.icon.input > i.icon {
    color: var(--text-muted) !important;
    left: 1em !important;
}

/* ===== 链接样式 ===== */
a {
    color: var(--primary-color) !important;
    transition: all var(--transition) !important;
    text-decoration: none !important;
}

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

/* 黑色链接 */
.m-black {
    color: var(--text-color) !important;
}

.m-black:hover {
    color: var(--primary-color) !important;
}

/* ===== 标题样式 ===== */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-color) !important;
    font-weight: 600 !important;
    line-height: 1.3 !important;
    margin-bottom: 1rem !important;
}

h1 { font-size: 2.25rem !important; }
h2 { font-size: 1.875rem !important; }
h3 { font-size: 1.5rem !important; }
h4 { font-size: 1.25rem !important; }

.ui.header {
    color: var(--text-color) !important;
    font-weight: 600 !important;
}

.ui.header .sub.header {
    color: var(--text-muted) !important;
    font-weight: 400 !important;
}

/* ===== 文本样式 ===== */
.m-text {
    color: var(--text-muted) !important;
    font-weight: 400 !important;
    letter-spacing: 0.3px !important;
    line-height: 1.8 !important;
}

.m-text-thin {
    font-weight: 300 !important;
}

.m-text-spaced {
    letter-spacing: 1px !important;
}

.m-text-lined {
    line-height: 1.8 !important;
}

/* 图片悬停特效 */
.ui.rounded.image {
    border-radius: var(--radius) !important;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1) !important;
    filter: brightness(1) saturate(1);
}

.ui.rounded.image:hover {
    transform: scale(1.05) rotate(1deg) !important;
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.3) !important;
    filter: brightness(1.1) saturate(1.2);
}

.ui.avatar.image {
    border: 3px solid white !important;
    box-shadow: var(--shadow) !important;
    transition: all var(--transition) !important;
}

.ui.avatar.image:hover {
    transform: scale(1.15) rotate(5deg) !important;
    box-shadow: var(--shadow-lg) !important;
    border-color: var(--primary-light) !important;
}

/* 博客列表项特殊样式 */
.ui.padded.vertical.segment {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.98), rgba(248, 250, 252, 0.95)) !important;
    border-left: 4px solid transparent !important;
    transition: all var(--transition) !important;
}

.ui.padded.vertical.segment:hover {
    border-left-color: var(--primary-color) !important;
    background: linear-gradient(135deg, rgba(255, 255, 255, 1), rgba(241, 245, 249, 0.98)) !important;
}

/* 标题链接悬停效果 */
.ui.header a.m-black {
    position: relative;
    display: inline-block;
    transition: all var(--transition);
}

.ui.header a.m-black::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-gradient);
    transition: width var(--transition);
}

.ui.header a.m-black:hover::after {
    width: 100%;
}

.ui.header a.m-black:hover {
    color: var(--primary-color) !important;
    transform: translateX(4px);
}

/* ===== 列表样式 ===== */

/* ===== 表格样式 ===== */
.ui.table {
    border-radius: var(--radius) !important;
    border: 1px solid var(--border-color) !important;
    box-shadow: var(--shadow-sm) !important;
}

.ui.table thead th {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(99, 102, 241, 0.04)) !important;
    color: var(--text-color) !important;
    font-weight: 600 !important;
}

.ui.table tbody tr:hover {
    background: rgba(99, 102, 241, 0.03) !important;
}

/* ===== 消息提示样式 ===== */
.ui.message {
    border-radius: var(--radius) !important;
    box-shadow: var(--shadow) !important;
}

.ui.error.message {
    background: linear-gradient(135deg, #fef2f2, #fee2e2) !important;
    border: 1px solid #fecaca !important;
    color: #dc2626 !important;
}

.ui.success.message {
    background: linear-gradient(135deg, #f0fdf4, #dcfce7) !important;
    border: 1px solid #bbf7d0 !important;
    color: #16a34a !important;
}

.ui.warning.message {
    background: linear-gradient(135deg, #fffbeb, #fef3c7) !important;
    border: 1px solid #fde68a !important;
    color: #d97706 !important;
}

/* ===== 分页样式 ===== */
.ui.pagination.menu {
    border-radius: var(--radius) !important;
    box-shadow: var(--shadow) !important;
}

.ui.pagination.menu .item {
    transition: all var(--transition) !important;
}

.ui.pagination.menu .item:hover {
    background: rgba(99, 102, 241, 0.08) !important;
    color: var(--primary-color) !important;
}

.ui.pagination.menu .active.item {
    background: var(--primary-gradient) !important;
    color: white !important;
}

/* ===== 加载动画 ===== */
.ui.loader {
    color: var(--primary-color) !important;
}

.ui.loader::after {
    border-color: var(--primary-color) transparent transparent !important;
}

/* ===== 回到顶部按钮 ===== */
#back-to-top {
    position: fixed !important;
    bottom: 40px !important;
    right: 40px !important;
    width: 50px !important;
    height: 50px !important;
    border-radius: 50% !important;
    background: var(--primary-gradient) !important;
    color: white !important;
    border: none !important;
    cursor: pointer !important;
    display: none !important;
    align-items: center !important;
    justify-content: center !important;
    box-shadow: var(--shadow-md) !important;
    transition: all var(--transition) !important;
    z-index: 9999 !important;
}

#back-to-top:hover {
    transform: translateY(-5px) scale(1.1) !important;
    box-shadow: var(--shadow-lg) !important;
}

#back-to-top i {
    margin: 0 !important;
    font-size: 1.2rem !important;
}

/* ===== 登录页面样式 ===== */
.login-bg {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    min-height: 100vh !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
}

.login-bg::before {
    content: '' !important;
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    height: 100% !important;
    background: 
        radial-gradient(circle at 20% 50%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(120, 219, 255, 0.3) 0%, transparent 50%) !important;
    pointer-events: none !important;
}

.login-bg .ui.segment {
    background: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(20px) !important;
    border: 1px solid rgba(255, 255, 255, 0.3) !important;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25) !important;
}

.login-bg .ui.teal.header {
    color: var(--primary-color) !important;
    font-size: 1.75rem !important;
    font-weight: 700 !important;
}

.login-bg .ui.teal.button {
    background: var(--primary-gradient) !important;
    border-radius: var(--radius) !important;
    font-weight: 600 !important;
    letter-spacing: 1px !important;
}

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

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* 动画类 */
.animated {
    animation-duration: 0.6s;
    animation-fill-mode: both;
}

.fadeIn { animation-name: fadeIn; }
.fadeInUp { animation-name: fadeInUp; }
.fadeInLeft { animation-name: fadeInLeft; }
.fadeInRight { animation-name: fadeInRight; }
.slideInUp { animation-name: slideInUp; }
.zoomIn { animation-name: zoomIn; }
.pulse { 
    animation-name: pulse; 
    animation-iteration-count: infinite;
    animation-duration: 2s;
}
.float {
    animation-name: float;
    animation-iteration-count: infinite;
    animation-duration: 3s;
}
.spin {
    animation-name: spin;
    animation-iteration-count: infinite;
    animation-duration: 1s;
    animation-timing-function: linear;
}

/* 延迟动画 */
.delay-100 { animation-delay: 0.1s !important; }
.delay-200 { animation-delay: 0.2s !important; }
.delay-300 { animation-delay: 0.3s !important; }
.delay-400 { animation-delay: 0.4s !important; }
.delay-500 { animation-delay: 0.5s !important; }

/* ===== 滚动条美化 ===== */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-light);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--border-dark), var(--border-color));
    border-radius: 5px;
    border: 2px solid var(--bg-light);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, var(--text-light), var(--border-dark));
}

/* ===== 工具类 ===== */
.m-padded-mini { padding: 0.2em !important; }
.m-padded-tiny { padding: 0.3em !important; }
.m-padded { padding: 1em !important; }
.m-padded-tb-mini { padding-top: 0.2em !important; padding-bottom: 0.2em !important; }
.m-padded-tb-tiny { padding-top: 0.3em !important; padding-bottom: 0.3em !important; }
.m-padded-tb-small { padding-top: 0.5em !important; padding-bottom: 0.5em !important; }
.m-padded-tb { padding-top: 1em !important; padding-bottom: 1em !important; }
.m-padded-tb-large { padding-top: 2em !important; padding-bottom: 2em !important; }
.m-padded-tb-big { padding-top: 3em !important; padding-bottom: 3em !important; }
.m-padded-tb-huge { padding-top: 4em !important; padding-bottom: 4em !important; }
.m-padded-tb-massive { padding-top: 5em !important; padding-bottom: 5em !important; }
.m-padded-lr-responsive { padding-left: 4em !important; padding-right: 4em !important; }

.m-margin-top-small { margin-top: 0.5em !important; }
.m-margin-top { margin-top: 1em !important; }
.m-margin-top-large { margin-top: 2em !important; }
.m-margin-tb-tiny { margin-top: 0.3em !important; margin-bottom: 0.3em !important; }
.m-margin-bottom-small { margin-bottom: 0.5em !important; }

.m-opacity-mini { opacity: 0.8 !important; }
.m-opacity-tiny { opacity: 0.6 !important; }

.m-right-top { position: absolute; top: 0; right: 0; }
.m-inline-block { display: inline-block !important; }

.m-shadow-small {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06) !important;
}

.m-fixed { position: fixed !important; z-index: 10 !important; }
.m-right-bottom { bottom: 0 !important; right: 0 !important; }

.m-teal { color: var(--secondary-color) !important; }

/* ===== 响应式布局 ===== */
@media screen and (max-width: 768px) {
    .m-mobile-hide { display: none !important; }
    .m-mobile-show { display: block !important; }
    .m-padded-lr-responsive { padding-left: 0 !important; padding-right: 0 !important; }
    .m-mobile-lr-clear { padding-left: 0 !important; padding-right: 0 !important; }
    .m-mobile-wide { width: 100% !important; }
    
    /* 容器 */
    .m-container {
        max-width: 95% !important;
        width: 95% !important;
        padding-left: 1rem !important;
        padding-right: 1rem !important;
    }
    
    .m-container-small {
        max-width: 95% !important;
        width: 95% !important;
    }
    
    /* 导航栏 */
    nav .m-container {
        width: 95% !important;
        padding: 0.5rem !important;
    }
    
    h1.ui.blue.header.item {
        font-size: 1.3rem !important;
    }
    
    /* 标题 */
    h1 { font-size: 1.75rem !important; }
    h2 { font-size: 1.5rem !important; }
    h3 { font-size: 1.25rem !important; }
    
    /* 卡片 */
    .ui.segment {
        border-radius: var(--radius) !important;
        margin-bottom: 1rem !important;
    }
    
    /* 按钮 */
    .ui.button {
        font-size: 0.9rem !important;
    }
    
    /* 回到顶部 */
    #back-to-top {
        bottom: 20px !important;
        right: 20px !important;
        width: 44px !important;
        height: 44px !important;
    }
}

@media screen and (min-width: 769px) and (max-width: 1024px) {
    .m-container {
        max-width: 90% !important;
        width: 90% !important;
    }
    
    .m-container-small {
        max-width: 90% !important;
        width: 90% !important;
    }
}

@media screen and (min-width: 1025px) {
    .m-container {
        max-width: 85% !important;
        width: 85% !important;
    }
    
    .m-container-small {
        max-width: 85% !important;
        width: 85% !important;
    }
}

@media screen and (min-width: 1440px) {
    .m-container {
        max-width: 85% !important;
        width: 85% !important;
    }
    
    .m-container-small {
        max-width: 85% !important;
        width: 85% !important;
    }
}

/* ===== 打印样式 ===== */
@media print {
    body { background: white !important; }
    nav, footer, #back-to-top, .ui.menu.toggle { display: none !important; }
    .ui.segment { 
        box-shadow: none !important; 
        border: 1px solid #ddd !important;
        break-inside: avoid;
    }
}

/* ===== 图片懒加载 ===== */
img[loading="lazy"] {
    opacity: 1;
    transition: opacity 0.5s ease;
}

img[loading="lazy"].loaded {
    opacity: 1;
}

/* ===== 代码高亮优化 ===== */
pre {
    border-radius: var(--radius) !important;
    background: #1e293b !important;
}

code {
    font-family: var(--font-mono) !important;
}

/* ===== 分隔线 ===== */
.ui.divider {
    border-top: 1px solid var(--border-color) !important;
}

.ui.section.divider {
    margin: 2rem 0 !important;
}

/* ===== 弹出层 ===== */
.ui.popup {
    border-radius: var(--radius) !important;
    box-shadow: var(--shadow-lg) !important;
    border: 1px solid var(--border-color) !important;
}

/* ===== 进度条 ===== */
.ui.progress {
    border-radius: var(--radius-full) !important;
    background: var(--bg-light) !important;
}

.ui.progress .bar {
    border-radius: var(--radius-full) !important;
    background: var(--primary-gradient) !important;
}

/* 按钮波纹效果 */
.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.6);
    transform: scale(0);
    animation: ripple-animation 0.6s ease-out;
    pointer-events: none;
}

@keyframes ripple-animation {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* ===== 博客列表项特殊样式 ===== */
.ui.padded.vertical.segment {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.98), rgba(248, 250, 252, 0.95)) !important;
    border-left: 4px solid transparent !important;
    transition: all var(--transition) !important;
    border-radius: var(--radius-lg) !important;
    margin: 1rem 0 !important;
    box-shadow: var(--shadow) !important;
}

.ui.padded.vertical.segment:hover {
    border-left-color: var(--primary-color) !important;
    background: linear-gradient(135deg, rgba(255, 255, 255, 1), rgba(241, 245, 249, 0.98)) !important;
    box-shadow: var(--shadow-md) !important;
}

/* 标题链接悬停效果 */
.ui.header a.m-black {
    position: relative;
    display: inline-block;
    transition: all var(--transition);
}

.ui.header a.m-black::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-gradient);
    transition: width var(--transition);
}

.ui.header a.m-black:hover::after {
    width: 100%;
}

.ui.header a.m-black:hover {
    color: var(--primary-color) !important;
    transform: translateX(4px);
}

/* 头像增强效果 */
.ui.avatar.image:hover {
    transform: scale(1.15) rotate(5deg) !important;
    box-shadow: var(--shadow-lg) !important;
    border-color: var(--primary-light) !important;
}

/* 标签云动画 */
a.ui.label {
    animation: float 3s ease-in-out infinite;
    animation-play-state: paused;
}

a.ui.label:hover {
    animation-play-state: running;
}

/* 侧边栏分类项增强 */
.ui.vertical.menu .item {
    position: relative;
    overflow: hidden;
}

.ui.vertical.menu .item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 3px;
    background: var(--primary-gradient);
    transform: scaleY(0);
    transition: transform var(--transition);
}

.ui.vertical.menu .item:hover::before {
    transform: scaleY(1);
}

/* ===== 时间线样式 ===== */
.timeline-container {
    position: relative;
    padding: 2rem 0;
}

/* 年份标题 */
.timeline-year {
    position: relative;
    margin: 3rem 0 1.5rem;
}

.timeline-year h2 {
    position: relative;
    z-index: 2;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
    font-size: 2rem;
    letter-spacing: 2px;
}

/* 时间线竖线 */
.timeline-line {
    position: absolute;
    left: 50%;
    top: 100%;
    bottom: -30px;
    width: 3px;
    background: linear-gradient(180deg, #6366f1, #8b5cf6, transparent);
    transform: translateX(-50%);
    border-radius: 2px;
}

.timeline-year:last-child .timeline-line {
    display: none;
}

/* 时间线列表 */
.timeline-list {
    position: relative;
    padding-left: 40px;
}

/* 时间线项目 */
.timeline-item {
    position: relative;
    display: flex;
    align-items: center;
    padding: 1rem 1.5rem;
    margin: 1rem 0;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--text-color);
    transition: all var(--transition);
    box-shadow: var(--shadow-sm);
}

.timeline-item:hover {
    background: rgba(255, 255, 255, 1);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
    transform: translateX(8px);
}

/* 时间线圆点 */
.timeline-dot {
    position: absolute;
    left: -40px;
    top: 50%;
    transform: translateY(-50%);
    width: 12px;
    height: 12px;
    background: var(--primary-gradient);
    border-radius: 50%;
    border: 3px solid white;
    box-shadow: 0 0 0 2px #6366f1, 0 2px 8px rgba(99, 102, 241, 0.3);
    transition: all var(--transition);
    z-index: 2;
}

.timeline-item:hover .timeline-dot {
    transform: translateY(-50%) scale(1.3);
    box-shadow: 0 0 0 3px #6366f1, 0 4px 12px rgba(99, 102, 241, 0.4);
}

/* 连接圆点的线 */
.timeline-item::before {
    content: '';
    position: absolute;
    left: -28px;
    top: 50%;
    width: 28px;
    height: 2px;
    background: linear-gradient(90deg, #6366f1, #8b5cf6);
    opacity: 0.5;
}

/* 时间线内容 */
.timeline-content {
    flex: 1;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.timeline-title {
    flex: 1;
    font-weight: 500;
    color: var(--text-color);
    transition: color var(--transition);
}

.timeline-item:hover .timeline-title {
    color: var(--primary-color);
}

.timeline-meta {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    flex-shrink: 0;
}

/* 响应式时间线 */
@media (max-width: 768px) {
    .timeline-list {
        padding-left: 30px;
    }
    
    .timeline-dot {
        left: -30px;
        width: 10px;
        height: 10px;
    }
    
    .timeline-item::before {
        left: -20px;
        width: 20px;
    }
    
    .timeline-content {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .timeline-meta {
        flex-wrap: wrap;
    }
    
    .timeline-year h2 {
        font-size: 1.5rem;
    }
}

/* 错误页面按钮样式 */
.ui.error.message .ui.button {
    padding: 1em 3em !important;
    margin: 1rem auto 0 !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    text-align: center !important;
    letter-spacing: 1px !important;
    min-width: 180px !important;
}

.ui.error.message .ui.button::before {
    display: none !important;
}

.archives-bg .ui.top.attached.segment {
    border-radius: 12px !important;
    border-bottom-left-radius: 12px !important;
    border-bottom-right-radius: 12px !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

/* 分类页面紫色按钮样式调整 */
.type-bg .ui.violet.button,
.type-bg .ui.violet.label {
    background-color: #a78bfa !important;
    border-color: #a78bfa !important;
}

.type-bg .ui.violet.button:hover {
    background-color: #8b5cf6 !important;
    border-color: #8b5cf6 !important;
}

/* 关于我页面样式修复 */
.aboutme-bg .ui.stackable.grid {
    display: flex !important;
    flex-wrap: wrap !important;
}

.aboutme-bg .eleven.wide.column {
    flex: 0 0 65% !important;
    max-width: 65% !important;
}

.aboutme-bg .five.wide.column {
    flex: 0 0 35% !important;
    max-width: 35% !important;
}

.aboutme-bg .ui.segment {
    border-radius: 12px !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    overflow: visible !important;
}

.aboutme-bg .ui.bottom.attached.segment {
    overflow: visible !important;
    z-index: 10;
}

/* 微信二维码弹窗样式 - 简化版 */
.aboutme-bg .wechat-qr {
    z-index: 1000 !important;
}

.aboutme-bg .ui.top.attached.segment {
    border-top-left-radius: 12px !important;
    border-top-right-radius: 12px !important;
}

.aboutme-bg .ui.bottom.attached.segment {
    border-bottom-left-radius: 12px !important;
    border-bottom-right-radius: 12px !important;
}

.aboutme-bg .ui.header {
    background: linear-gradient(135deg, #6366f1, #8b5cf6, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700 !important;
    letter-spacing: -0.5px;
}

/* 归档页面时间轴样式 */
.archive-timeline {
    position: relative;
    padding: 0 0 2rem 0;
}

.timeline-year-section {
    position: relative;
    margin: 1.5rem 0 1.5rem;
}

.timeline-year-section h2 {
    position: relative;
    z-index: 2;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
    font-size: 2.2rem;
    letter-spacing: 2px;
    margin-bottom: 1.5rem;
}

.timeline-year-section:last-child .timeline-line {
    display: none;
}

.timeline-items {
    position: relative;
    padding-left: 50px;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.timeline-card {
    position: relative;
    display: flex;
    align-items: center;
    padding: 1.2rem 1.8rem;
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid rgba(99, 102, 241, 0.15);
    border-radius: 12px;
    text-decoration: none;
    color: var(--text-color);
    transition: all var(--transition);
    box-shadow: var(--shadow-sm);
    gap: 1rem;
    visibility: visible;
    opacity: 1;
}

.timeline-card:hover {
    background: rgba(255, 255, 255, 1);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
    transform: translateX(10px);
}

/* 时间轴节点 */
.timeline-node {
    position: absolute;
    left: -50px;
    top: 50%;
    transform: translateY(-50%);
    width: 14px;
    height: 14px;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    border-radius: 50%;
    border: 3px solid white;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.3), 0 2px 8px rgba(99, 102, 241, 0.4);
    transition: all var(--transition);
    z-index: 2;
}

.timeline-card:hover .timeline-node {
    transform: translateY(-50%) scale(1.4);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.4), 0 4px 12px rgba(99, 102, 241, 0.5);
}

/* 连接线 */
.timeline-connector {
    position: absolute;
    left: -36px;
    top: 50%;
    width: 36px;
    height: 2px;
    background: linear-gradient(90deg, rgba(99, 102, 241, 0.6), rgba(139, 92, 246, 0.4));
    transition: all var(--transition);
}

.timeline-card:hover .timeline-connector {
    background: linear-gradient(90deg, #6366f1, #8b5cf6);
}

.card-content {
    flex: 1;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.card-title {
    flex: 1;
    font-weight: 500;
    font-size: 1.05rem;
    color: var(--text-color);
    transition: color var(--transition);
    min-width: 200px;
}

.timeline-card:hover .card-title {
    color: var(--primary-color);
}

.card-meta {
    display: flex;
    gap: 0.6rem;
    align-items: center;
    flex-shrink: 0;
}

.date-label {
    display: inline-flex;
    align-items: center;
    padding: 0.3rem 0.8rem;
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.1), rgba(255, 107, 53, 0.05));
    border: 1px solid rgba(255, 107, 53, 0.3);
    border-radius: 20px;
    color: #ff6b35;
    font-size: 0.85rem;
    font-weight: 500;
}

.flag-label {
    display: inline-flex;
    align-items: center;
    padding: 0.3rem 0.8rem;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.05));
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 20px;
    color: #6366f1;
    font-size: 0.85rem;
    font-weight: 500;
}

/* 响应式时间轴 */
@media (max-width: 768px) {
    .timeline-items {
        padding-left: 35px;
    }
    
    .timeline-node {
        left: -35px;
        width: 12px;
        height: 12px;
    }
    
    .timeline-connector {
        left: -23px;
        width: 23px;
    }
    
    .card-content {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.8rem;
    }
    
    .card-title {
        min-width: auto;
    }
    
    .timeline-year-section h2 {
        font-size: 1.6rem;
    }
}

/* 博客详情页标题渐变效果 */
.ui.center.aligned.header {
    background: linear-gradient(135deg, #6366f1, #8b5cf6, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700 !important;
    letter-spacing: -0.5px;
}

/* 评论区增强 */
.ui.threaded.comments .comment {
    background: rgba(255, 255, 255, 0.8);
    border-radius: var(--radius);
    padding: 1rem;
    margin-bottom: 1rem;
    transition: all var(--transition);
}

.ui.threaded.comments .comment:hover {
    background: rgba(255, 255, 255, 1);
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

.ui.threaded.comments .comment .avatar img {
    border: 3px solid white;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: all var(--transition);
}

.ui.threaded.comments .comment .avatar:hover img {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 6px 16px rgba(99, 102, 241, 0.3);
}

/* 工具栏按钮组增强 */
.ui.vertical.icon.buttons {
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.3) !important;
    border-radius: var(--radius) !important;
    overflow: hidden !important;
}

.ui.vertical.icon.buttons .button {
    border-radius: 0 !important;
    transition: all var(--transition) !important;
}

.ui.vertical.icon.buttons .button:hover {
    background: var(--primary-gradient) !important;
    color: white !important;
    transform: scale(1.05);
}

/* 代码块美化 */
pre {
    background: linear-gradient(135deg, #1e293b, #0f172a) !important;
    border-left: 4px solid var(--primary-color) !important;
    box-shadow: var(--shadow-lg) !important;
}

code {
    font-family: 'Fira Code', 'Consolas', monospace !important;
    background: rgba(99, 102, 241, 0.1) !important;
    padding: 0.2em 0.4em !important;
    border-radius: 4px !important;
    color: var(--primary-color) !important;
}

/* 引用块美化 */
blockquote {
    border-left: 4px solid var(--primary-color) !important;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), rgba(139, 92, 246, 0.03)) !important;
    padding: 1rem 1.5rem !important;
    border-radius: var(--radius) !important;
    margin: 1.5rem 0 !important;
    font-style: italic;
}

/* 表格增强 */
.ui.table {
    overflow: hidden;
}

.ui.table thead th {
    background: linear-gradient(135deg, #6366f1, #8b5cf6) !important;
    color: white !important;
}

.ui.table tbody tr {
    transition: all var(--transition);
}

.ui.table tbody tr:hover {
    background: rgba(99, 102, 241, 0.08) !important;
    transform: scale(1.01);
}