{--bg-primary: #050510;
            --bg-secondary: rgba(10, 10, 30, 0.7);
            --bg-card: rgba(0, 255, 255, 0.03);
            --text-primary: #e0f0ff;
            --text-secondary: #7a8fa8;
            --accent: #00f0ff;
            --accent-secondary: #ff00ff;
            --accent-tertiary: #00ff88;
            --border: rgba(0, 240, 255, 0.15);
            --shadow: 0 0 30px rgba(0, 240, 255, 0.1), 0 8px 32px rgba(0, 0, 0, 0.6);
            --glass: blur(20px) saturate(180%);
            --neon-glow: 0 0 10px rgba(0, 240, 255, 0.5), 0 0 20px rgba(0, 240, 255, 0.3), 0 0 40px rgba(0, 240, 255, 0.1);
            --neon-glow-pink: 0 0 10px rgba(255, 0, 255, 0.5), 0 0 20px rgba(255, 0, 255, 0.3), 0 0 40px rgba(255, 0, 255, 0.1);
        }

        [data-theme="light"] {
            --bg-primary: #f0f4ff;
            --bg-secondary: rgba(255, 255, 255, 0.7);
            --bg-card: rgba(0, 240, 255, 0.05);
            --text-primary: #0a0a20;
            --text-secondary: #4a5a70;
            --accent: #0088cc;
            --accent-secondary: #cc00cc;
            --accent-tertiary: #00aa66;
            --border: rgba(0, 136, 204, 0.15);
            --shadow: 0 0 20px rgba(0, 136, 204, 0.1), 0 8px 32px rgba(0, 0, 0, 0.1);
            --neon-glow: 0 0 10px rgba(0, 136, 204, 0.3), 0 0 20px rgba(0, 136, 204, 0.2);
            --neon-glow-pink: 0 0 10px rgba(204, 0, 204, 0.3), 0 0 20px rgba(204, 0, 204, 0.2);
        }

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

        body {
            font-family: 'Noto Sans SC', sans-serif;
            background: var(--bg-primary);
            color: var(--text-primary);
            min-height: 100vh;
            transition: all 0.3s ease;
            overflow-x: hidden;
            position: relative;
        }

        /* 赛博朋克背景网格 */
        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: 
                linear-gradient(rgba(0, 240, 255, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(0, 240, 255, 0.03) 1px, transparent 1px);
            background-size: 50px 50px;
            pointer-events: none;
            z-index: 0;
        }

        /* 动态光效背景 */
        .bg-effects {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 0;
            overflow: hidden;
        }

        .bg-effects .orb {
            position: absolute;
            border-radius: 50%;
            filter: blur(80px);
            opacity: 0.4;
            animation: orbFloat 15s ease-in-out infinite;
        }

        .bg-effects .orb:nth-child(1) {
            width: 400px;
            height: 400px;
            background: rgba(0, 240, 255, 0.15);
            top: -100px;
            left: -100px;
            animation-delay: 0s;
        }

        .bg-effects .orb:nth-child(2) {
            width: 300px;
            height: 300px;
            background: rgba(255, 0, 255, 0.12);
            top: 50%;
            right: -50px;
            animation-delay: -5s;
        }

        .bg-effects .orb:nth-child(3) {
            width: 350px;
            height: 350px;
            background: rgba(0, 255, 136, 0.1);
            bottom: -100px;
            left: 30%;
            animation-delay: -10s;
        }

        @keyframes orbFloat {
            0%, 100% { transform: translate(0, 0) scale(1); }
            25% { transform: translate(50px, -30px) scale(1.1); }
            50% { transform: translate(-30px, 50px) scale(0.9); }
            75% { transform: translate(20px, 20px) scale(1.05); }
        }

        /* 扫描线效果 */
        .scanline {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(
                to bottom,
                transparent 50%,
                rgba(0, 240, 255, 0.02) 50%
            );
            background-size: 100% 4px;
            pointer-events: none;
            z-index: 9999;
            animation: scanlineMove 8s linear infinite;
        }

        @keyframes scanlineMove {
            0% { transform: translateY(0); }
            100% { transform: translateY(4px); }
        }

        /* 顶部栏 */
        .top-bar {
            padding: 30px 40px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1400px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }

        /* 网站标题 - 赛博朋克风格 */
        .site-title {
            position: absolute;
            top: 20px;
            left: 50%;
            transform: translateX(-50%);
            font-family: 'Orbitron', 'Noto Sans SC', sans-serif;
            font-size: 1.8rem;
            font-weight: 900;
            letter-spacing: 4px;
            text-transform: uppercase;
            color: var(--text-primary);
            text-shadow: var(--neon-glow);
            animation: titleFlicker 4s infinite;
            z-index: 2;
            white-space: nowrap;
            width: max-content;
        }

        .site-title::before {
            content: '星河的快乐小屋';
            position: absolute;
            left: 2px;
            top: 2px;
            color: var(--accent-secondary);
            opacity: 0.5;
            z-index: -1;
            animation: glitchOffset 3s infinite;
            white-space: nowrap;
        }

        .site-title::after {
            content: '星河的快乐小屋';
            position: absolute;
            left: -2px;
            top: -2px;
            color: var(--accent);
            opacity: 0.5;
            z-index: -1;
            animation: glitchOffset 3s infinite reverse;
            white-space: nowrap;
        }

        @keyframes titleFlicker {
            0%, 100% { opacity: 1; }
            92% { opacity: 1; }
            93% { opacity: 0.8; }
            94% { opacity: 1; }
            96% { opacity: 0.9; }
            97% { opacity: 1; }
        }

        @keyframes glitchOffset {
            0%, 90%, 100% { transform: translate(0); }
            91% { transform: translate(-3px, 2px); }
            92% { transform: translate(3px, -2px); }
            93% { transform: translate(-2px, -1px); }
            94% { transform: translate(0); }
        }

        .time-display {
            display: flex;
            align-items: baseline;
            gap: 12px;
            font-family: 'JetBrains Mono', monospace;
        }

        .time-main {
            font-size: 3rem;
            font-weight: 700;
            color: var(--accent);
            text-shadow: var(--neon-glow);
            letter-spacing: -2px;
            animation: timePulse 2s ease-in-out infinite;
        }

        @keyframes timePulse {
            0%, 100% { text-shadow: 0 0 10px rgba(0, 240, 255, 0.5), 0 0 20px rgba(0, 240, 255, 0.3); }
            50% { text-shadow: 0 0 15px rgba(0, 240, 255, 0.8), 0 0 30px rgba(0, 240, 255, 0.5), 0 0 50px rgba(0, 240, 255, 0.2); }
        }

        .time-sec {
            font-size: 1.4rem;
            color: var(--accent-secondary);
            font-weight: 300;
            text-shadow: var(--neon-glow-pink);
        }

        .time-date {
            font-size: 0.9rem;
            color: var(--text-secondary);
            display: flex;
            flex-direction: column;
            line-height: 1.4;
            margin-left: 8px;
        }

        .weather-display {
            display: flex;
            align-items: center;
            gap: 15px;
            background: var(--bg-secondary);
            backdrop-filter: var(--glass);
            padding: 12px 24px;
            border-radius: 50px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .weather-display::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: linear-gradient(
                45deg,
                transparent 40%,
                rgba(0, 240, 255, 0.1) 50%,
                transparent 60%
            );
            animation: shimmer 3s infinite;
        }

        @keyframes shimmer {
            0% { transform: translateX(-100%) rotate(45deg); }
            100% { transform: translateX(100%) rotate(45deg); }
        }

        .weather-display:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 40px rgba(0, 240, 255, 0.2);
            border-color: var(--accent);
        }

        .weather-icon {
            font-size: 2.2rem;
            animation: float 3s ease-in-out infinite;
            filter: drop-shadow(0 0 5px rgba(0, 240, 255, 0.5));
        }

        @keyframes float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-5px); }
        }

        .weather-info {
            display: flex;
            flex-direction: column;
        }

        .weather-temp {
            font-size: 1.6rem;
            font-weight: 700;
            line-height: 1;
            color: var(--accent);
            text-shadow: var(--neon-glow);
        }

        .weather-desc {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-top: 2px;
        }

        .weather-location {
            font-size: 0.75rem;
            color: var(--text-secondary);
            opacity: 0.8;
        }

        .loading-dots {
            display: inline-flex;
            gap: 3px;
        }

        .loading-dots span {
            animation: bounce 1.4s infinite ease-in-out both;
            background: currentColor;
            width: 4px;
            height: 4px;
            border-radius: 50%;
        }

        .loading-dots span:nth-child(1) { animation-delay: -0.32s; }
        .loading-dots span:nth-child(2) { animation-delay: -0.16s; }

        @keyframes bounce {
            0%, 80%, 100% { transform: scale(0); }
            40% { transform: scale(1); }
        }

        .main-content {
            max-width: 1200px;
            margin: 0 auto;
            padding: 60px 40px 60px;
            position: relative;
            z-index: 1;
        }

        .search-section {
            text-align: center;
            margin-bottom: 50px;
        }

        .greeting {
            font-size: 2rem;
            font-weight: 300;
            margin-bottom: 30px;
            color: var(--text-secondary);
        }

        .greeting strong {
            color: var(--accent);
            font-weight: 600;
            text-shadow: var(--neon-glow);
        }

        .search-box-container {
            max-width: 700px;
            margin: 0 auto;
            position: relative;
        }

        .search-box-wrapper {
            display: flex;
            background: var(--bg-secondary);
            backdrop-filter: var(--glass);
            border: 1px solid var(--border);
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all 0.3s ease;
            position: relative;
        }

        .search-box-wrapper::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(0, 240, 255, 0.1), transparent);
            transition: left 0.5s;
        }

        .search-box-wrapper:hover::before {
            left: 100%;
        }

        .search-box-wrapper:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(0, 240, 255, 0.1), var(--neon-glow);
        }

        .search-engine-select {
            display: flex;
            align-items: center;
            padding: 0 20px;
            background: rgba(0, 240, 255, 0.1);
            border-right: 1px solid var(--border);
            cursor: pointer;
            font-weight: 500;
            color: var(--accent);
            transition: all 0.3s ease;
            user-select: none;
            font-family: 'Orbitron', sans-serif;
            font-size: 0.85rem;
            letter-spacing: 1px;
        }

        .search-engine-select:hover {
            background: rgba(0, 240, 255, 0.2);
            text-shadow: var(--neon-glow);
        }

        .search-box {
            flex: 1;
            padding: 20px 25px;
            border: none;
            background: transparent;
            color: var(--text-primary);
            font-size: 1.1rem;
            outline: none;
            font-family: 'Noto Sans SC', sans-serif;
        }

        .search-box::placeholder {
            color: var(--text-secondary);
        }

        .search-btn {
            padding: 0 30px;
            background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
            color: white;
            border: none;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 500;
            transition: all 0.3s ease;
            font-family: 'Orbitron', sans-serif;
            letter-spacing: 2px;
            text-transform: uppercase;
            position: relative;
            overflow: hidden;
        }

        .search-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
            transition: left 0.5s;
        }

        .search-btn:hover::before {
            left: 100%;
        }

        .search-btn:hover {
            box-shadow: var(--neon-glow);
            transform: scale(1.02);
        }

        .categories-container {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        @media (max-width: 968px) {
            .categories-container {
                grid-template-columns: 1fr;
            }
        }

        .category {
            background: var(--bg-secondary);
            backdrop-filter: var(--glass);
            border-radius: 24px;
            padding: 30px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
        }

        .category::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--color), transparent);
            opacity: 0;
            transition: opacity 0.3s;
        }

        .category:hover::before {
            opacity: 1;
            animation: borderFlow 2s linear infinite;
        }

        @keyframes borderFlow {
            0% { transform: translateX(-100%); }
            100% { transform: translateX(100%); }
        }

        .category:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4), 0 0 30px rgba(var(--color-rgb), 0.1);
            border-color: var(--color);
        }

        .category-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 25px;
            padding-bottom: 20px;
            border-bottom: 1px solid var(--border);
        }

        .category-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            background: linear-gradient(135deg, var(--color) 0%, rgba(255,255,255,0.1) 100%);
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2), 0 0 10px var(--color);
            animation: iconPulse 3s ease-in-out infinite;
        }

        @keyframes iconPulse {
            0%, 100% { box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2), 0 0 10px var(--color); }
            50% { box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2), 0 0 20px var(--color), 0 0 40px var(--color); }
        }

        .category-title {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--text-primary);
            font-family: 'Orbitron', 'Noto Sans SC', sans-serif;
            letter-spacing: 1px;
        }

        .links-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
        }

        @media (max-width: 1200px) {
            .links-grid {
                grid-template-columns: 1fr;
            }
        }

        .link-item {
            display: flex;
            align-items: center;
            padding: 16px;
            border-radius: 12px;
            text-decoration: none;
            color: var(--text-primary);
            background: var(--bg-card);
            border: 1px solid transparent;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .link-item::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, var(--color) 0%, transparent 100%);
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .link-item::after {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            width: 3px;
            height: 100%;
            background: var(--color);
            transform: scaleY(0);
            transition: transform 0.3s ease;
            box-shadow: 0 0 10px var(--color);
        }

        .link-item:hover {
            border-color: var(--color);
            transform: translateX(5px);
            background: rgba(var(--color-rgb), 0.05);
        }

        .link-item:hover::before {
            opacity: 0.1;
        }

        .link-item:hover::after {
            transform: scaleY(1);
        }

        .link-favicon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.05);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 12px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color);
            z-index: 1;
            border: 1px solid rgba(var(--color-rgb), 0.3);
            transition: all 0.3s;
        }

        .link-item:hover .link-favicon {
            box-shadow: 0 0 10px var(--color);
            transform: scale(1.1);
        }

        .link-content {
            flex: 1;
            z-index: 1;
        }

        .link-title {
            font-weight: 500;
            font-size: 0.95rem;
            margin-bottom: 4px;
            transition: color 0.3s;
        }

        .link-item:hover .link-title {
            color: var(--color);
            text-shadow: 0 0 5px var(--color);
        }

        .link-desc {
            font-size: 0.8rem;
            color: var(--text-secondary);
        }

        .theme-toggle {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--bg-secondary);
            backdrop-filter: var(--glass);
            border: 1px solid var(--border);
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            box-shadow: var(--shadow);
            transition: all 0.3s ease;
            z-index: 99;
        }

        .theme-toggle:hover {
            transform: scale(1.1) rotate(15deg);
            background: var(--accent);
            color: white;
            box-shadow: var(--neon-glow);
        }

        /* 角落装饰 */
        .corner-decoration {
            position: fixed;
            width: 100px;
            height: 100px;
            pointer-events: none;
            z-index: 0;
        }

        .corner-decoration.top-left {
            top: 0;
            left: 0;
            border-top: 2px solid var(--accent);
            border-left: 2px solid var(--accent);
            opacity: 0.5;
        }

        .corner-decoration.top-right {
            top: 0;
            right: 0;
            border-top: 2px solid var(--accent-secondary);
            border-right: 2px solid var(--accent-secondary);
            opacity: 0.5;
        }

        .corner-decoration.bottom-left {
            bottom: 0;
            left: 0;
            border-bottom: 2px solid var(--accent-tertiary);
            border-left: 2px solid var(--accent-tertiary);
            opacity: 0.5;
        }

        .corner-decoration.bottom-right {
            bottom: 0;
            right: 0;
            border-bottom: 2px solid var(--accent);
            border-right: 2px solid var(--accent);
            opacity: 0.5;
        }

        /* 打字机效果 */
        .typewriter {
            overflow: hidden;
            border-right: 2px solid var(--accent);
            white-space: nowrap;
            animation: typing 3s steps(20, end), blink-caret 0.75s step-end infinite;
        }

        @keyframes typing {
            from { width: 0; }
            to { width: 100%; }
        }

        @keyframes blink-caret {
            from, to { border-color: transparent; }
            50% { border-color: var(--accent); }
        }

        @media (max-width: 768px) {
            .top-bar {
                flex-direction: column;
                gap: 20px;
                padding: 60px 20px 20px;
            }

            .site-title {
                font-size: 1.2rem;
                top: 15px;
                white-space: nowrap;
                width: max-content;
            }

            .time-main {
                font-size: 2.5rem;
            }

            .main-content {
                padding: 20px;
            }

            .greeting {
                font-size: 1.5rem;
            }

            .categories-container {
                grid-template-columns: 1fr;
            }

            .links-grid {
                grid-template-columns: 1fr;
            }
        }