/* Page-specific styles from index.html */
/* 页面特有样式；设计系统见 collectx.css */
        :root {
            --bg-primary: #0a0a0f;
            --bg-secondary: #12121a;
            --bg-card: #1a1a24;
            --bg-card-hover: #22222e;
            --accent-cyan: #00d9ff;
            --accent-blue: #0066ff;
            --accent-purple: #8b5cf6;
            --accent-green: #10b981;
            --accent-orange: #f59e0b;
            --text-primary: #ffffff;
            --text-secondary: #a1a1aa;
            --text-muted: #71717a;
            --border-color: rgba(255, 255, 255, 0.08);
            --glow-cyan: rgba(0, 217, 255, 0.15);
            --glow-purple: rgba(139, 92, 246, 0.15);
        }
        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* ========== 背景动画 ========== */
        .bg-grid {
            display: none;
        }

        .bg-gradient {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: 
                radial-gradient(ellipse 80% 50% at 50% -20%, var(--glow-cyan), transparent),
                radial-gradient(ellipse 60% 40% at 80% 60%, var(--glow-purple), transparent);
            pointer-events: none;
            z-index: 0;
        }

        .floating-orb {
            display: none;
        }

        .orb-1 {
            width: 400px;
            height: 400px;
            background: var(--accent-cyan);
            top: 10%;
            left: 10%;
            animation-delay: 0s;
        }

        .orb-2 {
            width: 300px;
            height: 300px;
            background: var(--accent-purple);
            top: 60%;
            right: 10%;
            animation-delay: -7s;
        }

        .orb-3 {
            width: 250px;
            height: 250px;
            background: var(--accent-blue);
            bottom: 20%;
            left: 30%;
            animation-delay: -14s;
        }

        @keyframes float {
            0%, 100% { transform: translate(0, 0) scale(1); }
            25% { transform: translate(30px, -30px) scale(1.05); }
            50% { transform: translate(-20px, 20px) scale(0.95); }
            75% { transform: translate(20px, 10px) scale(1.02); }
        }

        /* ========== 导航栏 ========== */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 1rem 2rem;
            background: rgba(10, 10, 15, 0.8);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            transition: all 0.3s ease;
        }

        .navbar.scrolled {
            padding: 0.75rem 2rem;
            background: rgba(10, 10, 15, 0.95);
        }

        .nav-container {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            text-decoration: none;
            color: var(--text-primary);
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: 'JetBrains Mono', monospace;
            font-weight: 700;
            font-size: 1.2rem;
            box-shadow: 0 0 20px var(--glow-cyan);
        }

        .logo-text {
            font-family: 'JetBrains Mono', monospace;
            font-size: 1.4rem;
            font-weight: 600;
            background: linear-gradient(135deg, var(--accent-cyan), var(--text-primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2rem;
        }

        .nav-link {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            transition: color 0.3s ease;
            position: relative;
        }

        .nav-link:hover {
            color: var(--text-primary);
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-cyan);
            transition: width 0.3s ease;
        }

        .nav-link:hover::after {
            width: 100%;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .btn {
            padding: 0.6rem 1.5rem;
            border-radius: 8px;
            font-size: 0.95rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            border: none;
        }

        .btn-ghost {
            background: transparent;
            color: var(--text-secondary);
            border: 1px solid var(--border-color);
        }

        .btn-ghost:hover {
            color: var(--text-primary);
            border-color: var(--accent-cyan);
            background: rgba(0, 217, 255, 0.05);
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            color: var(--bg-primary);
            font-weight: 600;
            box-shadow: 0 4px 20px var(--glow-cyan);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 30px var(--glow-cyan);
        }

        .btn-large {
            padding: 1rem 2.5rem;
            font-size: 1.1rem;
            border-radius: 12px;
        }

        /* ========== Hero 区域 ========== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 8rem 2rem 4rem;
            z-index: 1;
        }

        .hero-content {
            max-width: 1000px;
            text-align: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.5rem 1rem;
            background: rgba(0, 217, 255, 0.1);
            border: 1px solid rgba(0, 217, 255, 0.3);
            border-radius: 50px;
            font-size: 0.85rem;
            color: var(--accent-cyan);
            margin-bottom: 2rem;
            animation: fadeInUp 0.6s ease;
        }

        .hero-badge-dot {
            width: 8px;
            height: 8px;
            background: var(--accent-green);
            border-radius: 50%;
            animation: pulse 2s ease-in-out infinite;
        }

        @keyframes pulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.5; }
        }

        .hero-title {
            font-size: clamp(2.5rem, 6vw, 4.5rem);
            font-weight: 700;
            line-height: 1.1;
            margin-bottom: 1.5rem;
            animation: fadeInUp 0.6s ease 0.1s both;
        }

        .hero-title .gradient-text {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue), var(--accent-purple));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: 1.25rem;
            color: var(--text-secondary);
            max-width: 700px;
            margin: 0 auto 3rem;
            line-height: 1.8;
            animation: fadeInUp 0.6s ease 0.2s both;
        }

        .hero-actions {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
            animation: fadeInUp 0.6s ease 0.3s both;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ========== 代码预览 ========== */
        .code-preview {
            margin-top: 5rem;
            animation: fadeInUp 0.6s ease 0.4s both;
        }

        .code-window {
            max-width: 800px;
            margin: 0 auto;
            background: var(--bg-card);
            border-radius: 16px;
            border: 1px solid var(--border-color);
            overflow: hidden;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
        }

        .code-header {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 1rem 1.5rem;
            background: var(--bg-secondary);
            border-bottom: 1px solid var(--border-color);
        }

        .code-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
        }

        .code-dot.red { background: #ff5f56; }
        .code-dot.yellow { background: #ffbd2e; }
        .code-dot.green { background: #27ca40; }

        .code-title {
            flex: 1;
            text-align: center;
            font-family: 'JetBrains Mono', monospace;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .code-body {
            padding: 1.5rem;
            font-family: 'JetBrains Mono', monospace;
            font-size: 0.9rem;
            line-height: 1.8;
            overflow-x: auto;
        }

        .code-line {
            display: flex;
            gap: 1rem;
        }

        .code-line-number {
            color: var(--text-muted);
            user-select: none;
            min-width: 2rem;
            text-align: right;
        }

        .code-content {
            flex: 1;
        }

        .code-keyword { color: #c678dd; }
        .code-string { color: #98c379; }
        .code-function { color: #61afef; }
        .code-comment { color: var(--text-muted); }
        .code-variable { color: #e5c07b; }
        .code-operator { color: #56b6c2; }

        /* ========== 特性区域 ========== */
        .features {
            position: relative;
            padding: 8rem 2rem;
            z-index: 1;
        }

        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 4rem;
        }

        .section-label {
            font-family: 'JetBrains Mono', monospace;
            font-size: 0.85rem;
            color: var(--accent-cyan);
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 1rem;
        }

        .section-title {
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 700;
            margin-bottom: 1rem;
        }

        .section-description {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .features-grid {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 2rem;
        }

        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 2.5rem;
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .feature-card:hover {
            background: var(--bg-card-hover);
            border-color: rgba(0, 217, 255, 0.2);
            transform: translateY(-5px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
        }

        .feature-card:hover::before {
            opacity: 1;
        }

        .feature-icon {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            margin-bottom: 1.5rem;
        }

        .feature-icon.cyan {
            background: rgba(0, 217, 255, 0.15);
            box-shadow: 0 0 30px var(--glow-cyan);
        }

        .feature-icon.purple {
            background: rgba(139, 92, 246, 0.15);
            box-shadow: 0 0 30px var(--glow-purple);
        }

        .feature-icon.green {
            background: rgba(16, 185, 129, 0.15);
            box-shadow: 0 0 30px rgba(16, 185, 129, 0.15);
        }

        .feature-icon.orange {
            background: rgba(245, 158, 11, 0.15);
            box-shadow: 0 0 30px rgba(245, 158, 11, 0.15);
        }

        .feature-icon.blue {
            background: rgba(0, 102, 255, 0.15);
            box-shadow: 0 0 30px rgba(0, 102, 255, 0.15);
        }

        .feature-title {
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 0.75rem;
        }

        .feature-description {
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== 平台能力 ========== */
        .capabilities {
            position: relative;
            padding: 8rem 2rem;
            background: var(--bg-secondary);
            z-index: 1;
        }

        .capabilities-container {
            max-width: 1400px;
            margin: 0 auto;
        }

        .capabilities-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            align-items: center;
        }

        .capabilities-content {
            padding-right: 2rem;
        }

        .capabilities-list {
            margin-top: 2rem;
        }

        .capability-item {
            display: flex;
            align-items: flex-start;
            gap: 1rem;
            padding: 1.25rem;
            margin-bottom: 1rem;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            transition: all 0.3s ease;
        }

        .capability-item:hover {
            border-color: var(--accent-cyan);
            transform: translateX(5px);
        }

        .capability-check {
            width: 24px;
            height: 24px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 0.8rem;
        }

        .capability-text h4 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 0.25rem;
        }

        .capability-text p {
            font-size: 0.9rem;
            color: var(--text-secondary);
        }

        .capabilities-visual {
            position: relative;
        }

        .platform-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1rem;
        }

        .platform-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 1.5rem;
            text-align: center;
            transition: all 0.3s ease;
        }

        .platform-card:hover {
            border-color: var(--accent-cyan);
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
        }

        .platform-card:nth-child(2) {
            transform: translateY(-20px);
        }

        .platform-card:nth-child(2):hover {
            transform: translateY(-23px);
        }

        .platform-card:nth-child(5) {
            transform: translateY(-20px);
        }

        .platform-card:nth-child(5):hover {
            transform: translateY(-23px);
        }

        .platform-icon {
            font-size: 2.5rem;
            margin-bottom: 0.75rem;
        }

        .platform-name {
            font-size: 0.85rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ========== 使用场景 ========== */
        .use-cases {
            position: relative;
            padding: 8rem 2rem;
            z-index: 1;
        }

        .use-cases-grid {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }

        .use-case-card {
            background: linear-gradient(135deg, var(--bg-card), var(--bg-secondary));
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 2.5rem;
            transition: all 0.4s ease;
        }

        .use-case-card:hover {
            border-color: var(--accent-purple);
            box-shadow: 0 20px 40px rgba(139, 92, 246, 0.1);
        }

        .use-case-number {
            font-family: 'JetBrains Mono', monospace;
            font-size: 3rem;
            font-weight: 700;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            opacity: 0.3;
            margin-bottom: 1rem;
        }

        .use-case-title {
            font-size: 1.4rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }

        .use-case-description {
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 1.5rem;
        }

        .use-case-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }

        .use-case-tag {
            padding: 0.35rem 0.75rem;
            background: rgba(0, 217, 255, 0.1);
            border: 1px solid rgba(0, 217, 255, 0.2);
            border-radius: 6px;
            font-size: 0.8rem;
            color: var(--accent-cyan);
        }

        /* ========== 统计数据 ========== */
        .stats {
            position: relative;
            padding: 6rem 2rem;
            background: var(--bg-secondary);
            z-index: 1;
        }

        .stats-grid {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
        }

        .stat-item {
            text-align: center;
            padding: 2rem;
        }

        .stat-value {
            font-family: 'JetBrains Mono', monospace;
            font-size: 3.5rem;
            font-weight: 700;
            background: linear-gradient(135deg, var(--accent-cyan), var(--text-primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 0.5rem;
        }

        .stat-label {
            font-size: 1rem;
            color: var(--text-secondary);
        }

        /* ========== CTA 区域 ========== */
        .cta {
            position: relative;
            padding: 8rem 2rem;
            z-index: 1;
        }

        .cta-container {
            max-width: 900px;
            margin: 0 auto;
            text-align: center;
            background: linear-gradient(135deg, var(--bg-card), var(--bg-secondary));
            border: 1px solid var(--border-color);
            border-radius: 30px;
            padding: 5rem;
            position: relative;
            overflow: hidden;
        }

        .cta-container::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple), var(--accent-blue));
        }

        .cta-title {
            font-size: clamp(2rem, 4vw, 2.8rem);
            font-weight: 700;
            margin-bottom: 1.5rem;
        }

        .cta-description {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto 2.5rem;
            line-height: 1.8;
        }

        .cta-buttons {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ========== 页脚 ========== */
        .footer {
            position: relative;
            padding: 4rem 2rem 2rem;
            border-top: 1px solid var(--border-color);
            z-index: 1;
        }

        .footer-container {
            max-width: 1400px;
            margin: 0 auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 4rem;
            margin-bottom: 4rem;
        }

        .footer-brand {
            max-width: 300px;
        }

        .footer-brand .logo {
            margin-bottom: 1.5rem;
        }

        .footer-brand p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
        }

        .footer-section h4 {
            font-size: 0.9rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 1.5rem;
            color: var(--text-primary);
        }

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

        .footer-links li {
            margin-bottom: 0.75rem;
        }

        .footer-links a {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 0.95rem;
            transition: color 0.3s ease;
        }

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

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 2rem;
            border-top: 1px solid var(--border-color);
        }

        .footer-copyright {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .footer-socials {
            display: flex;
            gap: 1rem;
        }

        .footer-social {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            text-decoration: none;
            transition: all 0.3s ease;
            font-size: 1.2rem;
        }

        .footer-social:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            transform: translateY(-2px);
        }

        /* ========== 响应式设计 ========== */
        @media (max-width: 1024px) {
            .capabilities-grid {
                grid-template-columns: 1fr;
                gap: 3rem;
            }

            .capabilities-content {
                padding-right: 0;
            }

            .platform-cards {
                grid-template-columns: repeat(3, 1fr);
                max-width: 500px;
                margin: 0 auto;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 3rem;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .navbar {
                padding: 1rem;
            }

            .nav-links {
                display: none;
            }

            .hero {
                padding: 7rem 1.5rem 3rem;
            }

            .hero-subtitle {
                font-size: 1.1rem;
            }

            .hero-actions {
                flex-direction: column;
                align-items: center;
            }

            .btn-large {
                width: 100%;
                justify-content: center;
            }

            .code-preview {
                margin-top: 3rem;
            }

            .code-body {
                font-size: 0.75rem;
            }

            .features, .capabilities, .use-cases, .cta {
                padding: 5rem 1.5rem;
            }

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

            .platform-cards {
                grid-template-columns: repeat(2, 1fr);
            }

            .platform-card:nth-child(2),
            .platform-card:nth-child(5) {
                transform: none;
            }

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }

            .stat-value {
                font-size: 2.5rem;
            }

            .cta-container {
                padding: 3rem 2rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 1.5rem;
                text-align: center;
            }
        }

        /* ========== 移动端导航菜单 ========== */
        .mobile-menu-btn {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            cursor: pointer;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
        }

        .mobile-menu-btn span {
            width: 20px;
            height: 2px;
            background: var(--text-primary);
            transition: all 0.3s ease;
        }

        @media (max-width: 768px) {
            .mobile-menu-btn {
                display: flex;
            }
        }

        /* ========== 滚动动画 ========== */
        .reveal {
            opacity: 0;
            transform: translateY(30px);
            transition: all 0.6s ease;
        }

        .reveal.active {
            opacity: 1;
            transform: translateY(0);
        }

        /* ========== 打字动画 ========== */
        .typing-effect {
            border-right: 2px solid var(--accent-cyan);
            animation: blink 1s step-end infinite;
        }

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

        /* ========== 用户登录状态样式 ========== */
        .nav-user {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .user-profile {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.4rem 0.8rem;
            border-radius: 50px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            text-decoration: none;
            transition: all 0.3s ease;
        }

        .user-profile:hover {
            border-color: var(--accent-cyan);
            background: var(--bg-card-hover);
        }

        .user-avatar {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--bg-primary);
            text-transform: uppercase;
        }

        .user-name {
            color: var(--text-primary);
            font-size: 0.9rem;
            font-weight: 500;
            max-width: 100px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .btn-logout {
            padding: 0.5rem 1rem;
            font-size: 0.85rem;
        }

        .btn-logout:hover {
            border-color: #ef4444;
            color: #ef4444;
            background: rgba(239, 68, 68, 0.1);
        }

        @media (max-width: 768px) {
            .user-name {
                display: none;
            }
            
            .user-profile {
                padding: 0.3rem;
            }
        }

/* Support modal (legacy entry removed; modal markup retained) */
.support-modal { position: fixed; inset: 0; display: none; align-items: center; justify-content: center; z-index: 999; }
.support-modal.show { display: flex; }
.support-modal__mask { position: absolute; inset: 0; background: rgba(0,0,0,0.55); backdrop-filter: blur(2px); }
.support-modal__content { position: relative; background: var(--bg-secondary); color: var(--text-primary); padding: 24px; border-radius: 12px; width: 90%; max-width: 520px; box-shadow: 0 20px 60px rgba(0,0,0,0.35); border: 1px solid var(--border-color); }
.support-modal__content h3 { margin: 0 0 12px; font-size: 22px; }
.support-modal__content p { margin: 0 0 18px; color: var(--text-secondary); }
.support-form .form-group { text-align: left; margin-bottom: 12px; }
.support-form label { display: block; margin-bottom: 6px; color: var(--text-secondary); }
.support-form input,
.support-form textarea { width: 100%; padding: 10px 12px; border-radius: 8px; border: 1px solid var(--border-color); background: var(--bg-primary); color: var(--text-primary); }
.support-form textarea { min-height: 120px; resize: vertical; }
.support-modal__close { position: absolute; top: 12px; right: 12px; background: transparent; border: none; color: var(--text-muted); font-size: 20px; cursor: pointer; }