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

        :root {
            --bg-primary: #0a0a0a;
            --bg-secondary: #111111;
            --bg-tertiary: #1a1a1a;
            --bg-hover: #252525;
            --border-default: #2a2a2a;
            --border-muted: #1f1f1f;
            --text-primary: #e0e0e0;
            --text-secondary: #888888;
            --text-muted: #555555;
            --accent-green: #00ff41;
            --accent-blue: #00b8ff;
            --accent-purple: #bd00ff;
            --accent-orange: #ff9d00;
            --accent-red: #ff3333;
            --accent-cyan: #00ffff;
            --accent-yellow: #ffee00;
            --toast-bg: rgba(0, 0, 0, 0.9);
        }

        ::selection {
            background: rgba(0, 255, 65, 0.2);
            color: var(--accent-green);
        }

        body {
            background: var(--bg-primary);
            color: var(--text-primary);
            font-family: 'Fira Code', 'JetBrains Mono', monospace;
            font-size: 13px;
            line-height: 1.6;
            min-height: 100vh;
            overflow-x: hidden;
        }

        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: repeating-linear-gradient(0deg, rgba(0,0,0,0.03), rgba(0,0,0,0.03) 1px, transparent 1px, transparent 2px);
            pointer-events: none;
            z-index: 9999;
        }

        .cursor::after {
            content: '_';
            animation: blink 1s step-end infinite;
            color: var(--accent-green);
        }

        @keyframes blink {
            50% { opacity: 0; }
        }

        .toast-notify {
            position: fixed;
            bottom: 30px;
            left: 50%;
            transform: translateX(-50%) translateY(20px);
            background: var(--toast-bg);
            backdrop-filter: blur(8px);
            border: 1px solid var(--accent-green);
            border-radius: 6px;
            padding: 8px 18px;
            color: var(--accent-green);
            font-family: 'JetBrains Mono', monospace;
            font-size: 11px;
            z-index: 10000;
            opacity: 0;
            transition: opacity 0.2s, transform 0.2s;
            pointer-events: none;
            white-space: nowrap;
        }
        .toast-notify.show { opacity: 1; transform: translateX(-50%) translateY(0); }

        .status-item, .status-right span, .nav-tab, .breadcrumb span, .header-info h1 span, .stat, .file-item, .post-item .title {
            cursor: pointer;
            transition: all 0.15s ease;
        }

        .status-bar {
            background: var(--bg-secondary);
            border-bottom: 1px solid var(--border-default);
            padding: 6px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 11px;
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .status-left { display: flex; gap: 15px; color: var(--text-secondary); flex-wrap: wrap; }
        .status-item { display: flex; align-items: center; gap: 6px; }
        .status-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent-green);
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.5; }
        }
        .status-right { color: var(--text-muted); display: flex; gap: 15px; }
        .status-item::before { content: none; }
        .status-item.error::before { content: none; }
        .status-item.warn::before { content: none; }

        header {
            padding: 50px 0 35px;
            border-bottom: 1px solid var(--border-default);
            position: relative;
            overflow: hidden;
        }
        #siteHeader::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            opacity: 0.15;
            transition: background-image 0.5s ease;
            z-index: 0;
        }
        #siteHeader > .container {
            position: relative;
            z-index: 1;
        }
        .header-content { display: flex; align-items: flex-start; gap: 30px; flex-wrap: wrap; }
        .header-info h1 { font-size: 28px; font-weight: 700; margin-bottom: 8px; display: flex; gap: 12px; flex-wrap: wrap; }
        .tagline { color: var(--text-secondary); margin-bottom: 18px; font-style: italic; }
        .stats { display: flex; gap: 25px; font-size: 11px; flex-wrap: wrap; }
        .stat { display: flex; align-items: center; gap: 6px; padding: 2px 12px; border-radius: 20px; background: var(--bg-tertiary);}
        .stat-key { color: var(--accent-orange); }
        .stat-val { color: var(--accent-cyan); }

        nav {
            background: var(--bg-secondary);
            border-bottom: 1px solid var(--border-default);
            position: sticky;
            top: 29px;
            z-index: 99;
        }
        .nav-tabs { display: flex; list-style: none; max-width: 1200px; margin: 0 auto; padding: 0 20px; overflow-x: auto; }
        .nav-tab {
            padding: 10px 20px;
            cursor: pointer;
            border-right: 1px solid var(--border-default);
            color: var(--text-secondary);
            font-size: 12px;
            text-transform: lowercase;
            display: flex;
            gap: 8px;
            user-select: none;
        }
        .nav-tab.active { background: var(--bg-primary); border-bottom: 2px solid var(--accent-green); color: var(--text-primary); }
        .nav-tab:hover:not(.active) { background: var(--bg-hover); color: var(--text-primary); }

        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        main { display: grid; grid-template-columns: 220px 1fr; gap: 0; min-height: calc(100vh - 280px); }

        .sidebar {
            background: var(--bg-secondary);
            border-right: 1px solid var(--border-default);
            padding: 15px 0;
        }
        .sidebar-header { padding: 0 12px 8px; font-size: 10px; text-transform: uppercase; color: var(--text-muted); display: flex; justify-content: space-between;}
        .file-tree { list-style: none; font-size: 12px; }
        .file-item {
            padding: 5px 12px 5px 25px;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-secondary);
            position: relative;
            user-select: none;
        }
        .file-item::before { content: '>'; position: absolute; left: 12px; color: var(--text-muted); font-size: 10px; }
        .file-item.active { background: var(--bg-hover); color: var(--text-primary); }
        .file-item.active::before { color: var(--accent-green); }
        .file-item:hover:not(.active) { background: var(--bg-tertiary); }
        .file-icon.md { background: var(--text-primary); color: var(--bg-primary); padding: 1px 4px; border-radius: 2px;}

        .folder-header {
            display: flex;
            align-items: center;
            gap: 4px;
            cursor: pointer;
            padding: 5px 12px 5px 20px;
            transition: all 0.15s;
        }
        .folder-header:hover { background: var(--bg-tertiary); }
        .folder-arrow {
            font-size: 10px;
            color: var(--text-muted);
            transition: transform 0.2s;
            width: 12px;
        }
        .folder-arrow.expanded { transform: rotate(0deg); }
        .folder-arrow:not(.expanded) { transform: rotate(-90deg); }

        .folder-content {
            list-style: none;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }
        .folder-content.expanded { max-height: 500px; }
        .folder-content.collapsed { max-height: 0; }

        .folder-content .file-item {
            padding-left: 32px;
        }
        .folder-content .folder-header {
            padding-left: 24px;
        }
        .folder-content .folder-content .file-item {
            padding-left: 36px;
        }
        .folder-content .folder-content .folder-header {
            padding-left: 28px;
        }

        #collapseBtn {
            font-size: 14px;
            transition: transform 0.2s;
        }
        #collapseBtn.collapsed {
            transform: rotate(-90deg);
        }
        .sidebar.collapsed .folder-content {
            max-height: 0 !important;
        }
        .sidebar.collapsed #collapseBtn {
            transform: rotate(-90deg);
        }

        .content { padding: 25px; position: relative; }
        
        .content-panel {
            display: none;
            animation: fadeIn 0.2s ease;
        }
        .content-panel.active {
            display: block;
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(5px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 20px; padding-bottom: 15px; border-bottom: 1px solid var(--border-muted); font-size: 11px; color: var(--text-muted);}
        .breadcrumb span { cursor: default; }
        .breadcrumb span.clickable { cursor: pointer; color: var(--accent-blue); }
        .breadcrumb span.clickable:hover { text-decoration: underline; }

        .card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-default);
            border-radius: 4px;
            padding: 20px;
            margin-bottom: 20px;
        }
        .card h2 { 
            color: var(--accent-green); 
            font-size: 14px; 
            margin-bottom: 15px; 
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .card h2::before { content: '#'; color: var(--text-muted); }
        .k { color: var(--accent-orange); }
        .s { color: var(--accent-green); }
        .comment { color: var(--text-muted); }
        .string { color: var(--accent-green); }
        
        .skills { display: grid; gap: 12px; margin-top: 15px; }
        .skill { display: grid; grid-template-columns: 80px 1fr 40px; gap: 12px; align-items: center; }
        .skill-bar { height: 6px; background: var(--bg-tertiary); border-radius: 3px; overflow: hidden; }
        .skill-fill { transition: width 0.5s ease; }
        .skill-fill.js { background: var(--accent-yellow); width: 85%; }
        .skill-fill.py { background: var(--accent-blue); width: 75%; }
        .skill-fill.go { background: var(--accent-cyan); width: 60%; }
        .skill-fill.docker { background: var(--accent-blue); width: 70%; }

        .file-list {
            display: flex;
            flex-direction: column;
            gap: 1px;
            background: var(--border-muted);
            border-radius: 4px;
            margin-bottom: 25px;
            border: 1px solid var(--border-default);
        }
        .file-list-header {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 100px;
            padding: 10px 15px;
            background: var(--bg-tertiary);
            font-size: 10px;
            color: var(--text-muted);
            text-transform: uppercase;
            border-bottom: 1px solid var(--border-default);
        }
        .file-row {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 100px;
            padding: 12px 15px;
            background: var(--bg-secondary);
            align-items: center;
            cursor: pointer;
            transition: all 0.15s;
        }
        .file-row:hover { background: var(--bg-hover); }
        .file-row .filename { display: flex; align-items: center; gap: 8px; color: var(--text-primary); }
        .file-row .meta { color: var(--text-secondary); font-size: 11px; }
        .file-row .size { color: var(--accent-cyan); font-size: 11px; }
        .file-row .date { color: var(--text-muted); font-size: 11px; }
        
        .post-list {
            display: flex;
            flex-direction: column;
            gap: 1px;
            background: var(--border-muted);
            border-radius: 4px;
            margin-bottom: 25px;
        }
        .post-item {
            background: var(--bg-secondary);
            padding: 18px 20px;
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 15px;
            cursor: pointer;
            border-left: 3px solid transparent;
            transition: all 0.15s;
        }
        .post-item:hover { 
            background: var(--bg-tertiary); 
            border-left-color: var(--accent-green);
        }
        .post-item .title { 
            color: var(--accent-blue); 
            font-weight: 600; 
            margin-bottom: 4px;
        }
        .post-item .desc { color: var(--text-secondary); font-size: 12px; }
        .post-item .date { color: var(--text-muted); font-size: 11px; }
        
        .project-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 15px;
            margin-bottom: 25px;
        }
        .project-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-default);
            border-radius: 4px;
            padding: 20px;
            cursor: pointer;
            transition: all 0.2s;
            position: relative;
            overflow: hidden;
        }
        .project-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: linear-gradient(90deg, var(--accent-green), var(--accent-blue));
            transform: scaleX(0);
            transition: transform 0.3s;
        }
        .project-card:hover::before { transform: scaleX(1); }
        .project-card:hover { 
            border-color: var(--accent-blue);
            transform: translateY(-2px);
        }
        .project-card h3 { 
            color: var(--accent-green); 
            margin-bottom: 8px; 
            font-size: 14px;
        }
        .project-card p { color: var(--text-secondary); font-size: 12px; margin-bottom: 12px; }
        .project-tags { display: flex; gap: 6px; flex-wrap: wrap; }
        .tag { 
            background: var(--bg-tertiary); 
            padding: 2px 8px; 
            border-radius: 12px; 
            font-size: 10px; 
            color: var(--accent-orange);
        }

        .terminal {
            background: var(--bg-secondary);
            border: 1px solid var(--border-default);
            border-radius: 4px;
            overflow: hidden;
            margin-top: 20px;
        }
        .term-header {
            background: var(--bg-tertiary);
            padding: 10px 15px;
            display: flex;
            align-items: center;
            gap: 6px;
            border-bottom: 1px solid var(--border-default);
            flex-wrap: wrap;
        }
        .term-btn { width: 10px; height: 10px; border-radius: 50%; }
        .term-btn.c { background: var(--accent-red); }
        .term-btn.m { background: var(--accent-orange); }
        .term-btn.x { background: var(--accent-green); }
        .term-title { margin-left: 10px; color: var(--text-secondary); font-size: 11px; flex:1;}

        .ai-controls {
            display: flex;
            align-items: center;
            gap: 12px;
            background: var(--bg-tertiary);
            padding: 4px 12px;
            border-radius: 24px;
            margin-left: auto;
        }
        .toggle-switch {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 10px;
            color: var(--text-secondary);
        }
        .toggle-switch input {
            display: none;
        }
        .toggle-label {
            width: 36px;
            height: 18px;
            background: var(--bg-secondary);
            border-radius: 18px;
            border: 1px solid var(--border-default);
            position: relative;
            cursor: pointer;
            transition: 0.2s;
        }
        .toggle-label::after {
            content: '';
            width: 14px;
            height: 14px;
            background: var(--text-muted);
            border-radius: 50%;
            position: absolute;
            top: 1px;
            left: 2px;
            transition: 0.2s;
        }
        input:checked + .toggle-label {
            background: var(--accent-green);
            border-color: var(--accent-green);
        }
        input:checked + .toggle-label::after {
            left: 18px;
            background: var(--bg-primary);
        }
        .model-select {
            background: var(--bg-secondary);
            border: 1px solid var(--border-default);
            color: var(--text-primary);
            font-family: monospace;
            font-size: 10px;
            padding: 4px 8px;
            border-radius: 16px;
            cursor: pointer;
        }
        .model-select:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }
        /* 无emoji终端风格语言切换 */
        .lang-switch {
            background: var(--bg-secondary);
            border: 1px solid var(--border-default);
            color: var(--accent-cyan);
            font-family: 'Fira Code', monospace;
            font-size: 10px;
            padding: 4px 8px;
            border-radius: 16px;
            cursor: pointer;
            letter-spacing: 0.3px;
            transition: all 0.15s;
        }
        .lang-switch:hover {
            border-color: var(--accent-green);
            color: var(--accent-green);
            background: var(--bg-hover);
        }
        .ai-badge {
            font-size: 9px;
            background: var(--accent-purple);
            padding: 2px 6px;
            border-radius: 12px;
            color: black;
            font-weight: bold;
        }

        .term-body {
            padding: 15px;
            font-size: 12px;
            font-family: 'Fira Code', monospace;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .term-history {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-bottom: 8px;
            max-height: 320px;
            overflow-y: auto;
        }
        .term-line {
            display: flex;
            gap: 10px;
            align-items: flex-start;
            flex-wrap: wrap;
        }
        .term-prompt { color: var(--accent-green); white-space: nowrap; }
        .term-prompt::before { content: 'yueling@dev:~$ '; }
        .term-output {
            color: var(--text-secondary);
            margin: 4px 0 6px 18px;
            word-break: break-word;
            white-space: pre-wrap;
        }
        .term-output.ok { color: var(--accent-green); }
        .term-output.err { color: var(--accent-red); }
        .term-output.info { color: var(--accent-blue); }
        .term-output.ai { color: var(--accent-cyan); border-left: 2px solid var(--accent-cyan); padding-left: 10px; margin-left: 8px;}

        .input-line {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-top: 12px;
            border-top: 1px solid var(--border-muted);
            padding-top: 12px;
            flex-wrap: wrap;
        }
        .input-prompt { color: var(--accent-green); }
        .input-prompt::before { content: 'yueling@dev:~$ '; }
        .term-input-field {
            flex: 1;
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-family: 'Fira Code', monospace;
            font-size: 12px;
            outline: none;
            padding: 4px 0;
        }
        .send-btn {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-default);
            color: var(--accent-cyan);
            padding: 4px 12px;
            border-radius: 4px;
            cursor: pointer;
            font-family: monospace;
        }
        .send-btn:hover { border-color: var(--accent-green); color: var(--accent-green); }

        footer {
            border-top: 1px solid var(--border-default);
            padding: 25px 0;
            text-align: center;
            color: var(--text-muted);
            font-size: 11px;
        }
        .back-link {
            position: fixed;
            top: 1.5rem;
            right: 1.5rem;
            z-index: 1000;
        }
        .back-btn {
            background: var(--bg-secondary);
            border: 1px solid var(--border-default);
            padding: 8px 16px;
            border-radius: 4px;
            font-size: 11px;
            font-family: monospace;
            cursor: pointer;
            transition: all 0.2s;
        }
        .back-btn:hover {
            border-color: var(--accent-green);
            color: var(--accent-green);
        }
        .modal-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.85);
            backdrop-filter: blur(3px);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 10001;
            visibility: hidden;
            opacity: 0;
            transition: 0.2s;
        }
        .modal-overlay.active { visibility: visible; opacity: 1; }
        .modal-content {
            background: var(--bg-secondary);
            border: 1px solid var(--accent-green);
            border-radius: 8px;
            padding: 22px 28px;
            max-width: 380px;
            width: 90%;
        }
        .modal-content h3 { color: var(--accent-green); margin-bottom: 15px; }
        .modal-content input {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-default);
            color: var(--text-primary);
            padding: 8px;
            width: 100%;
            margin: 12px 0;
            font-family: monospace;
            border-radius: 4px;
        }
        .modal-content input:focus {
            outline: none;
            border-color: var(--accent-green);
        }
        .modal-content button {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-default);
            color: var(--text-primary);
            padding: 6px 16px;
            cursor: pointer;
            border-radius: 4px;
            font-family: monospace;
            transition: all 0.2s;
        }
        .modal-content button:hover {
            border-color: var(--accent-green);
            color: var(--accent-green);
        }
        .modal-content button.primary {
            background: var(--accent-green);
            color: var(--bg-primary);
            border-color: var(--accent-green);
            font-weight: bold;
        }
        .modal-content button.primary:hover {
            background: transparent;
            color: var(--accent-green);
        }
        
        .empty-state {
            text-align: center;
            padding: 60px 20px;
            color: var(--text-muted);
        }
        .empty-state .icon {
            font-size: 48px;
            margin-bottom: 20px;
            opacity: 0.5;
        }
        
        @media (max-width: 768px) {
            main { grid-template-columns: 1fr; }
            .sidebar { display: none; }
            .ai-controls { margin-left: 0; width: 100%; justify-content: flex-end; margin-top: 8px;}
            .project-grid { grid-template-columns: 1fr; }
            .file-list-header, .file-row { grid-template-columns: 1fr auto; }
            .file-list-header :nth-child(2),
            .file-list-header :nth-child(3),
            .file-row :nth-child(2),
            .file-row :nth-child(3) { display: none; }
        }

/* 减少动画支持 */
@media (prefers-reduced-motion: reduce) {
    * { animation: none !important; transition: none !important; }
}