@charset "UTF-8";
/* ========== common.css：全站公共 + index 页全部样式（自 original/index.html style[0] 提取） ========== */

        * { margin: 0; padding: 0; box-sizing: border-box; }
        
        :root {
            --primary: #22d3ee;
            --primary-dark: #0ea5e9;
            --secondary: #7c3aed;
            --accent: #f97316;
            --bg-dark: #020617;
            --bg-card: rgba(15, 23, 42, 0.92);
            --text-main: #e5e7eb;
            --text-muted: #9ca3af;
            --border: rgba(148, 163, 184, 0.32);
            --glow: 0 0 30px rgba(34, 211, 238, 0.6);
        }
        
        html {
            scroll-behavior: smooth;
        }
        
        body { 
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', 'PingFang SC', 'Hiragino Sans GB', Arial, sans-serif; 
            color: var(--text-main); 
            line-height: 1.8; 
            overflow-x: hidden;
            background: var(--bg-dark);
            position: relative;
            /* 核心修复：body全局允许文本选中，爬虫完整抓取文字 */
            -webkit-user-select: text;
            -moz-user-select: text;
            -ms-user-select: text;
            user-select: text;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        
        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: 
                radial-gradient(circle at 20% 50%, rgba(0, 240, 255, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(123, 44, 191, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 40% 20%, rgba(255, 0, 110, 0.05) 0%, transparent 50%);
            pointer-events: none;
            z-index: 0;
        }
        
        body::after {
            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;
            animation: gridMove 20s linear infinite;
        }
        
        @keyframes gridMove {
            0% { transform: translate(0, 0); }
            100% { transform: translate(50px, 50px); }
        }
        
        .container { 
            max-width: 1180px; 
            margin: 0 auto; 
            padding: 0 20px;
            position: relative;
            z-index: 1;
        }
        
        /* Header */
        header { 
            background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.24), transparent 55%), rgba(15, 23, 42, 0.9);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            color: var(--text-main); 
            padding: 1.5rem 0; 
            position: sticky; 
            top: 0; 
            z-index: 1000;
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }
        
        nav { 
            display: flex; 
            justify-content: space-between; 
            align-items: center; 
        }
        
        .logo { 
            font-size: 1.7rem; 
            font-weight: 700; 
            letter-spacing: 2px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 0 30px rgba(0, 240, 255, 0.5);
            white-space: nowrap;
            flex-shrink: 0;
        }
        
        nav > div {
            display: flex;
            align-items: center;
            gap: 2.5rem;
        }
        
        nav a { 
            color: var(--text-main); 
            text-decoration: none; 
            font-weight: 500;
            font-size: 1rem;
            position: relative;
            transition: all 0.3s ease;
            padding: 0.5rem 0;
        }
        
        nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            transition: width 0.3s ease;
            box-shadow: var(--glow);
        }
        
        nav a:hover::after {
            width: 100%;
        }

        nav a.active {
            color: var(--primary);
        }
        nav a.active::after {
            width: 100%;
        }

        nav a:hover { 
            color: var(--primary);
            transform: translateY(-2px);
            text-shadow: 0 0 10px rgba(0, 240, 255, 0.5);
        }
        
        /* Hero */
        .hero { 
            background: transparent;
            color: var(--text-main); 
            padding: 120px 0 110px; 
            position: relative;
            overflow: hidden;
        }
        
        .hero::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            animation: pulse 4s ease-in-out infinite;
            z-index: 0;
        }
        
        @keyframes pulse {
            0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
            50% { transform: translate(-50%, -50%) scale(1.2); opacity: 0.8; }
        }
        
        .hero .container {
            position: relative;
            z-index: 1;
        }

        .hero-layout {
            display: grid;
            grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
            align-items: center;
            gap: 3.5rem;
        }
        
        .hero-visual-card {
            background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.22), transparent 55%), var(--bg-card);
            border-radius: 22px;
            border: 1px solid rgba(148, 163, 184, 0.4);
            padding: 1.8rem 1.7rem 1.7rem;
            box-shadow: 0 24px 60px rgba(15, 23, 42, 0.9);
            position: relative;
            overflow: hidden;
        }

        .hero-visual-card::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at top right, rgba(124, 58, 237, 0.16), transparent 60%);
            opacity: 0.7;
            pointer-events: none;
        }

        .hero-visual-card-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 1.1rem;
            position: relative;
            z-index: 1;
        }

        .hero-visual-card-title {
            display: flex;
            flex-direction: column;
            gap: 0.1rem;
        }

        .hero-visual-card-title span:first-child {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .hero-visual-card-title span:last-child {
            font-size: 1.05rem;
            font-weight: 600;
        }

        .hero-visual-status {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            font-size: 0.78rem;
            color: var(--primary);
            background: rgba(15, 23, 42, 0.9);
            border-radius: 999px;
            padding: 3px 8px;
            border: 1px solid rgba(56, 189, 248, 0.6);
        }

        .hero-visual-status-dot {
            width: 7px;
            height: 7px;
            border-radius: 999px;
            background: #22c55e;
            box-shadow: 0 0 0 5px rgba(34, 197, 94, 0.2);
        }

        .hero-visual-image {
            position: relative;
            z-index: 1;
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid rgba(148, 163, 184, 0.35);
            background: rgba(15, 23, 42, 0.9);
            margin-bottom: 1rem;
        }

        .hero-visual-image img {
            display: block;
            width: 100%;
            height: auto;
            object-fit: cover;
            transform-origin: center;
            transition: transform 0.55s ease, filter 0.55s ease;
            filter: saturate(1.05) drop-shadow(0 0 24px rgba(34, 211, 238, 0.5));
        }

        .hero-visual-card:hover .hero-visual-image img {
            transform: scale(1.03);
            filter: saturate(1.1) drop-shadow(0 0 32px rgba(34, 211, 238, 0.7));
        }

        .hero-visual-footer {
            position: relative;
            z-index: 1;
            font-size: 0.86rem;
            color: var(--text-muted);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
        }

        .hero-visual-metric {
            display: flex;
            flex-direction: column;
            gap: 0.05rem;
        }

        .hero-visual-metric span:first-child {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .hero-visual-metric span:last-child {
            font-size: 0.95rem;
            color: var(--primary);
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 6px 14px;
            border-radius: 999px;
            border: 1px solid rgba(148, 163, 184, 0.5);
            background: radial-gradient(circle at left, rgba(56, 189, 248, 0.35), transparent 55%), rgba(15, 23, 42, 0.9);
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 1rem;
        }

        .hero-badge span {
            color: var(--primary);
            font-weight: 600;
        }

        .hero h1 { 
            font-size: 3.3rem; 
            margin-bottom: 1.2rem; 
            font-weight: 800;
            letter-spacing: -1.5px;
            background: linear-gradient(135deg, #e5e7eb, var(--primary), var(--secondary));
            background-size: 200% 200%;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            animation: fadeInUp 0.8s ease, gradientShift 3s ease infinite;
        }
        
        @keyframes gradientShift {
            0%, 100% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
        }
        
        .hero p { 
            font-size: 1.5rem; 
            margin-bottom: 2.2rem; 
            color: var(--text-muted);
            font-weight: 300;
            animation: fadeInUp 0.8s ease 0.2s both;
        }

        .hero-sub {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-top: -1.2rem;
            margin-bottom: 2rem;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            align-items: center;
        }
        
        .btn { 
            display: inline-block; 
            padding: 16px 40px; 
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary); 
            text-decoration: none; 
            border-radius: 8px; 
            font-weight: 600;
            font-size: 1.1rem;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
            animation: fadeInUp 0.8s ease 0.4s both;
            /* 按钮局部禁止拖拽复制，不影响正文 */
            -webkit-user-select: none;
            -moz-user-select: none;
            -ms-user-select: none;
            user-select: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #0f172a;
            border-color: transparent;
        }

        .btn-ghost {
            border-color: rgba(148, 163, 184, 0.6);
            color: var(--text-muted);
        }
        
        .btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(0, 240, 255, 0.3), transparent);
            transition: left 0.5s ease;
        }
        
        .btn:hover::before {
            left: 100%;
        }
        
        .btn:hover { 
            transform: translateY(-3px);
            box-shadow: var(--glow), 0 10px 30px rgba(0, 240, 255, 0.3);
            background: rgba(0, 240, 255, 0.1);
        }
        
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        /* Sections */
        section { 
            padding: 100px 0;
            position: relative;
            z-index: 1;
        }
        
        h2 { 
            text-align: center; 
            font-size: 2.4rem; 
            margin-bottom: 2.5rem; 
            color: var(--text-main);
            font-weight: 800;
            letter-spacing: -1px;
            position: relative;
            display: block;
            width: 100%;
        }
        
        h2::after {
            content: '';
            position: absolute;
            bottom: -15px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 3px;
            background: linear-gradient(90deg, transparent, var(--primary), transparent);
            box-shadow: 0 0 10px var(--primary);
        }
        
        h2 + p {
            text-align: center;
            font-size: 1.2rem;
            color: var(--text-muted);
            margin-bottom: 3.2rem;
            margin-top: 3rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        
        /* Features */
        .features { 
            display: grid; 
            grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); 
            gap: 2rem; 
            margin-top: 2.5rem; 
        }
        
        .feature-card { 
            background: var(--bg-card);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            padding: 2.4rem 2.1rem; 
            border-radius: 18px; 
            text-align: center; 
            transition: all 0.4s ease;
            border: 1px solid var(--border);
            position: relative;
            overflow: hidden;
            opacity: 0;
            transform: translateY(24px);
            animation: fadeInUp 0.8s ease forwards;
        }
        
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.05), rgba(123, 44, 191, 0.05));
            opacity: 0;
            transition: opacity 0.4s ease;
            z-index: 0;
        }
        
        .feature-card::after {
            content: '';
            position: absolute;
            top: -2px;
            left: -2px;
            right: -2px;
            bottom: -2px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: 16px;
            z-index: -1;
            opacity: 0;
            transition: opacity 0.4s ease;
        }
        
        .feature-card:hover::before {
            opacity: 1;
        }
        
        .feature-card:hover::after {
            opacity: 1;
        }
        
        .feature-card:hover { 
            transform: translateY(-10px); 
            box-shadow: var(--glow), 0 20px 60px rgba(0, 240, 255, 0.3);
            border-color: var(--primary);
        }
        
        /* 图片容器 */
        .feature-card .image-container {
            position: relative;
            width: 100%;
            margin-bottom: 2rem;
            padding: 20px;
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.08), rgba(123, 44, 191, 0.08));
            border-radius: 16px;
            border: 2px solid var(--border);
            overflow: hidden;
            cursor: pointer;
            transition: all 0.4s ease;
        }
        
        .feature-card .image-container::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.1), rgba(123, 44, 191, 0.1));
            opacity: 0;
            transition: opacity 0.4s ease;
            z-index: 1;
        }
        
        .feature-card .image-container:hover::before {
            opacity: 1;
        }
        
        .feature-card .image-container::after {
            content: '点击查看大图';
            position: absolute;
            bottom: 15px;
            left: 50%;
            transform: translateX(-50%);
            background: rgba(0, 0, 0, 0.7);
            color: var(--primary);
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            opacity: 0;
            transition: all 0.3s ease;
            z-index: 2;
            pointer-events: none;
            backdrop-filter: blur(10px);
            border: 1px solid rgba(0, 240, 255, 0.3);
        }
        
        .feature-card .image-container:hover::after {
            opacity: 1;
            transform: translateX(-50%) translateY(-5px);
        }
        
        .feature-card img { 
            width: 100%;
            max-width: 280px;
            height: auto;
            min-height: 250px;
            max-height: 300px;
            margin: 0 auto;
            display: block;
            border-radius: 12px; 
            object-fit: contain;
            transition: all 0.4s ease;
            filter: drop-shadow(0 0 15px rgba(0, 240, 255, 0.4));
            position: relative;
            z-index: 1;
            background: rgba(10, 14, 39, 0.6);
            padding: 15px;
            /* 图片禁止拖拽，不影响爬虫抓取图片地址 */
            -webkit-user-drag: none;
            user-drag: none;
            -webkit-user-select: none;
            -moz-user-select: none;
            -ms-user-select: none;
            user-select: none;
        }
        
        .feature-card:hover .image-container {
            border-color: var(--primary);
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.4);
            transform: translateY(-5px);
        }
        
        .feature-card:hover img {
            transform: scale(1.05);
            filter: drop-shadow(0 0 25px rgba(0, 240, 255, 0.7));
        }
        
        /* 图片放大模态框 */
        .image-modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.95);
            backdrop-filter: blur(10px);
            z-index: 10000;
            justify-content: center;
            align-items: center;
            padding: 20px;
            animation: fadeIn 0.3s ease;
        }
        
        .image-modal.active {
            display: flex;
        }
        
        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }
        
        .image-modal-content {
            position: relative;
            max-width: 90vw;
            max-height: 90vh;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        
        .image-modal-content img {
            max-width: 100%;
            max-height: 90vh;
            object-fit: contain;
            border-radius: 16px;
            box-shadow: 0 0 50px rgba(0, 240, 255, 0.5);
            border: 2px solid var(--primary);
            animation: zoomIn 0.3s ease;
            -webkit-user-drag: none;
            user-drag: none;
        }
        
        @keyframes zoomIn {
            from { 
                transform: scale(0.8);
                opacity: 0;
            }
            to { 
                transform: scale(1);
                opacity: 1;
            }
        }
        
        .image-modal-close {
            position: absolute;
            top: -50px;
            right: 0;
            background: rgba(0, 240, 255, 0.2);
            border: 2px solid var(--primary);
            color: var(--primary);
            width: 45px;
            height: 45px;
            border-radius: 50%;
            font-size: 1.5rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
            backdrop-filter: blur(10px);
            -webkit-user-select: none;
            -moz-user-select: none;
            -ms-user-select: none;
            user-select: none;
        }
        
        .image-modal-close:hover {
            background: var(--primary);
            color: var(--bg-dark);
            transform: rotate(90deg);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.8);
        }
        
        .feature-card h3 {
            font-size: 1.5rem;
            margin-bottom: 1rem;
            color: var(--text-main);
            font-weight: 700;
            position: relative;
            z-index: 1;
        }
        
        .feature-card:not(:has(img)) h3::before {
            content: '⚡';
            display: block;
            font-size: 3rem;
            margin-bottom: 1rem;
            filter: drop-shadow(0 0 10px rgba(0, 240, 255, 0.5));
        }
        
        .feature-card:not(:has(img)):nth-of-type(1) h3::before { content: '🔐'; }
        .feature-card:not(:has(img)):nth-of-type(2) h3::before { content: '🛡️'; }
        .feature-card:not(:has(img)):nth-of-type(3) h3::before { content: '🚀'; }
        .feature-card:not(:has(img)):nth-of-type(4) h3::before { content: '⚙️'; }
        .feature-card:not(:has(img)):nth-of-type(5) h3::before { content: '💬'; }
        .feature-card:not(:has(img)):nth-of-type(6) h3::before { content: '🎨'; }
        
        .feature-card p {
            color: var(--text-muted);
            font-size: 1rem;
            line-height: 1.8;
            position: relative;
            z-index: 1;
        }
        
        /* Pricing */
        .pricing { 
            display: grid; 
            grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); 
            gap: 2.2rem; 
            margin-top: 3rem; 
        }
        
        .pricing-card { 
            background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.18), transparent 55%), var(--bg-card);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid var(--border); 
            border-radius: 22px; 
            padding: 2.8rem 2.4rem; 
            text-align: left; 
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
            opacity: 0;
            transform: translateY(24px);
            animation: fadeInUp 0.85s ease forwards;
        }

        .features .feature-card:nth-child(1) { animation-delay: 0.08s; }
        .features .feature-card:nth-child(2) { animation-delay: 0.16s; }
        .features .feature-card:nth-child(3) { animation-delay: 0.24s; }
        .features .feature-card:nth-child(4) { animation-delay: 0.32s; }
        .features .feature-card:nth-child(5) { animation-delay: 0.40s; }
        .features .feature-card:nth-child(6) { animation-delay: 0.48s; }

        .pricing .pricing-card:nth-child(1) { animation-delay: 0.12s; }
        .pricing .pricing-card:nth-child(2) { animation-delay: 0.24s; }
        
        .pricing-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.05), rgba(123, 44, 191, 0.05));
            opacity: 0;
            transition: opacity 0.4s ease;
        }
        
        .pricing-card:hover::before {
            opacity: 1;
        }
        
        .pricing-card:hover { 
            border-color: var(--primary); 
            transform: translateY(-10px); 
            box-shadow: var(--glow), 0 20px 60px rgba(0, 240, 255, 0.3);
        }
        
        .pricing-card-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1.2rem;
        }

        .pricing-tag {
            font-size: 0.78rem;
            padding: 4px 10px;
            border-radius: 999px;
            border: 1px solid rgba(148, 163, 184, 0.55);
            color: var(--text-muted);
        }

        .pricing-tag-primary {
            border-color: rgba(56, 189, 248, 0.7);
            color: var(--primary);
            background: rgba(15, 23, 42, 0.9);
        }

        .pricing-card.featured { 
            border: 1.5px solid rgba(56, 189, 248, 0.8);
            background: linear-gradient(135deg, rgba(56, 189, 248, 0.16), rgba(124, 58, 237, 0.18)); 
            box-shadow: var(--glow);
            transform: translateY(-4px);
        }
        
        .pricing-card.featured::after {
            content: '推荐';
            position: absolute;
            top: 18px;
            right: 18px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--bg-dark);
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
        }
        
        .pricing-card h3 {
            font-size: 1.8rem;
            margin-bottom: 0.3rem;
            font-weight: 700;
            color: var(--text-main);
            position: relative;
            z-index: 1;
        }
        
        .price { 
            font-size: 2.8rem; 
            font-weight: 800; 
            margin: 1.2rem 0 0.8rem; 
            display: flex;
            align-items: baseline;
            justify-content: flex-start;
            gap: 0.2rem;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            position: relative;
            z-index: 1;
        }
        
        .price .currency {
            font-size: 1.8rem;
            margin-top: 0.5rem;
        }
        
        .pricing-card ul { 
            list-style: none; 
            margin: 2rem 0; 
            text-align: left;
            padding: 0;
            position: relative;
            z-index: 1;
        }
        
        .pricing-card li { 
            padding: 0.8rem 0; 
            border-bottom: 1px solid var(--border);
            position: relative;
            padding-left: 2rem;
            color: var(--text-muted);
        }
        
        .pricing-card.featured li {
            border-bottom-color: rgba(0, 240, 255, 0.2);
        }
        
        .pricing-card li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--primary);
            font-weight: bold;
            font-size: 1.3rem;
            text-shadow: 0 0 10px rgba(0, 240, 255, 0.5);
        }
        
        .pricing-card.featured li::before {
            color: var(--primary);
        }
        
        .pricing-card .btn {
            margin-top: 0.8rem;
            width: 100%;
            position: relative;
            z-index: 1;
        }
        
        /* Server Recommend */
        .server-rec { 
            background: transparent;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            color: var(--text-main); 
            padding: 90px 0; 
            position: relative;
            overflow: hidden;
        }
        
        .server-rec::before {
            content: '';
            position: absolute;
            inset: 0;
            background:
                radial-gradient(circle at 20% 30%, rgba(56, 189, 248, 0.18), transparent 60%),
                radial-gradient(circle at 80% 70%, rgba(124, 58, 237, 0.18), transparent 60%);
            opacity: 0.9;
            pointer-events: none;
        }
        
        .server-rec .container {
            position: relative;
            z-index: 1;
        }
        
        .server-grid {
            display: grid;
            grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
            gap: 2.5rem;
            align-items: center;
        }

        .server-intro {
            text-align: left;
        }

        .server-intro h2 {
            text-align: left;
            margin-bottom: 1.2rem;
        }

        .server-intro h2::after {
            left: 0;
            transform: none;
        }

        .server-intro p {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 520px;
        }

        .server-card {
            background: rgba(15, 23, 42, 0.96);
            border-radius: 18px;
            padding: 1.8rem 1.9rem;
            border: 1px solid rgba(148, 163, 184, 0.35);
            box-shadow: 0 20px 50px rgba(15, 23, 42, 0.9);
        }

        .server-card-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1.1rem;
        }

        .server-card-title {
            display: flex;
            flex-direction: column;
            gap: 0.15rem;
        }

        .server-card-title span:first-child {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .server-card-title span:last-child {
            font-size: 1.05rem;
            font-weight: 600;
        }

        .server-badge {
            font-size: 0.75rem;
            padding: 4px 9px;
            border-radius: 999px;
            border: 1px solid rgba(56, 189, 248, 0.7);
            color: var(--primary);
            background: rgba(15, 23, 42, 0.96);
        }

        .server-card-main {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
            margin-bottom: 1.2rem;
        }

        .server-card-main a {
            color: var(--primary);
            text-decoration: none;
            font-size: 1.1rem;
            font-weight: 600;
        }

        .server-card-main a:hover {
            text-decoration: underline;
        }

        .server-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
            margin-top: 0.3rem;
        }

        .server-tag {
            font-size: 0.78rem;
            padding: 3px 8px;
            border-radius: 999px;
            background: rgba(15, 23, 42, 0.9);
            border: 1px solid rgba(148, 163, 184, 0.5);
            color: var(--text-muted);
        }

        .server-footnote {
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        
        /* Footer */
        footer { 
            background: rgba(10, 14, 39, 0.9);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-top: 1px solid var(--border);
            color: var(--text-muted); 
            padding: 3rem 0 2.6rem;
            position: relative;
            z-index: 1;
            margin-top: auto;
        }
        
        .footer-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 1.5rem;
            align-items: center;
            max-width: 1180px;
            margin: 0 auto;
            padding: 0 20px;
        }

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

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem;
            font-size: 0.9rem;
        }

        .footer-links a {
            color: var(--text-muted);
            text-decoration: none;
        }

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

        /* 版权原创声明，给搜索引擎原创判定依据 */
        .copyright-statement {
            width: 100%;
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border);
            font-size: 0.85rem;
            color: var(--text-muted);
            text-align: center;
            line-height: 1.7;
        }
        
/* 全屏水印层，不遮挡点击操作、不干扰爬虫文本抓取 */
.watermark-box {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 99999;
    opacity: 0.08;
    background-repeat: repeat;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}
        
        /* 输入框、文本域强制允许文字选中，兼容交互与爬虫 */
        input, textarea {
            -webkit-user-select: text !important;
            -moz-user-select: text !important;
            -ms-user-select: text !important;
            user-select: text !important;
        }
        
        /* Responsive */
        @media (max-width: 768px) {
            .hero {
                padding: 110px 0 80px;
            }

            .hero-layout {
                grid-template-columns: 1fr;
                gap: 2.3rem;
            }

            .hero h1 {
                font-size: 2.3rem;
            }
            
            .hero p {
                font-size: 1.1rem;
            }
            
            h2 {
                font-size: 2rem;
            }
            
            h2 + p {
                font-size: 1rem;
            }
            
            .features,
            .pricing {
                grid-template-columns: 1fr;
                gap: 1.7rem;
            }
            
            nav {
                flex-direction: column;
                gap: 1rem;
            }

            nav > div {
                flex-wrap: wrap;
                justify-content: center;
                gap: 1rem 1.4rem;
            }

            nav a {
                font-size: 0.9rem;
            }
            
            .logo {
                font-size: 1.5rem;
                white-space: nowrap;
                flex-shrink: 0;
            }
            
            .feature-card,
            .pricing-card {
                padding: 2rem 1.6rem;
            }
            
            .price {
                font-size: 2.5rem;
            }
            
            .feature-card .image-container {
                padding: 15px;
                margin-bottom: 1.5rem;
            }
            
            .feature-card img {
                max-width: 100%;
                min-height: 200px;
                max-height: 250px;
            }
            
            .image-modal-close {
                top: 10px;
                right: 10px;
                width: 40px;
                height: 40px;
                font-size: 1.3rem;
            }
            
            .image-modal-content img {
                max-width: 95vw;
                max-height: 85vh;
            }
        }
    

/* ========== 全站公共补充：悬浮客服（统一此版本，原内联 style[1] right:150px 已删除） ========== */
.float-kefu{
    position:fixed;
    right:24px;
    bottom:30px;
    width:60px;
    height:60px;
    z-index:999999;
    cursor:pointer;
    border-radius:50%;
    overflow:hidden;
    box-shadow:0 0 18px rgba(34,211,238,0.55);
    border:2px solid #22d3ee;
    transition:transform 0.25s ease,box-shadow 0.25s ease;
}
.float-kefu img{
    width:100%;
    height:100%;
    object-fit:cover;
}
.float-kefu:hover{
    transform:scale(1.12);
    box-shadow:0 0 28px rgba(34,211,238,0.75);
}
/* main 公共布局（pay.html 使用 <main>） */
main{
    flex:1;
    position:relative;
    z-index:1;
}
/* 移动端 float-kefu 缩小 */
@media (max-width:768px){
    .float-kefu{
        width:48px;
        height:48px;
        right:16px;
        bottom:20px;
    }
}