:root {
            --primary: #c72092;
            --secondary: #6c14d0;
            --bg: #f6f6f6;
            --text: #222;
            --radius: 8px;
            --transition: 0.3s;
        }
        html {
            scroll-behavior: smooth;
            background: var(--bg);
            color: var(--text);
        }
        body {
            font-family: 'Segoe UI', Arial, sans-serif;
            margin: 0;
            padding: 0;
            background: var(--bg);
            transition: background 0.4s, color 0.4s;
        }
        body.dark-mode {
            background: #181828;
            color: #f6f6f6;
        }
        /* Scrollbar */
        ::-webkit-scrollbar { width: 12px; }
        ::-webkit-scrollbar-thumb {
            background: linear-gradient(to top, var(--primary), var(--secondary));
            border-radius: var(--radius);
        }
        /* Navbar */
        header {
            position: fixed;
            width: 100%;
            top: 0; left: 0; right: 0;
            background: #fff;
            box-shadow: 0 2px 12px rgba(0,0,0,0.08);
            z-index: 1000;
            transition: background 0.3s;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 2vw;
        }
        body.dark-mode header {
            background: #23234a;
        }
        .logo h1 {
            font-size: 2.2rem;
            color: var(--primary);
            margin: 0;
            letter-spacing: 2px;
            font-weight: bold;
            display: flex;
            align-items: center;
        }
        .logo span {
            color: var(--secondary);
            text-decoration: underline;
            margin-left: 2px;
        }
        nav {
            display: flex;
            align-items: center;
            gap: 2vw;
        }
        nav ul {
            display: flex;
            gap: 1.5vw;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        nav ul li a {
            text-decoration: none;
            color: var(--text);
            font-weight: 500;
            padding: 8px 14px;
            border-radius: var(--radius);
            transition: background var(--transition), color var(--transition);
        }
        nav ul li a:hover, nav ul li a.active {
            background: linear-gradient(to right, var(--primary), var(--secondary));
            color: #fff;
        }
        .icons {
            display: flex;
            gap: 1vw;
            align-items: center;
        }
        .icons i {
            font-size: 1.2rem;
            cursor: pointer;
            transition: color var(--transition), transform var(--transition);
        }
        .icons i:hover {
            color: var(--primary);
            transform: scale(1.2);
        }
        .dark-toggle {
            margin-left: 1vw;
            cursor: pointer;
            font-size: 1.3rem;
            color: var(--secondary);
            transition: color var(--transition);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            margin-left: 1vw;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background: var(--primary);
            margin: 4px 0;
            border-radius: 2px;
            transition: all 0.3s;
        }
        /* Responsive Navbar */
        @media (max-width: 900px) {
            nav ul {
                position: absolute;
                top: 60px;
                right: 0;
                background: #fff;
                flex-direction: column;
                width: 180px;
                box-shadow: 0 8px 24px rgba(0,0,0,0.08);
                display: none;
            }
            nav ul.open {
                display: flex;
            }
            .hamburger { display: flex; }
        }
        /* Hero Section */
        main {
            margin-top: 70px;
            min-height: 100vh;
            background: url(image/bg1.png) center/cover no-repeat;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: flex-start;
            position: relative;
            padding: 4vw 8vw 0 8vw;
        }
        .main_content {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 3vw;
        }
        .main_text h1 {
            font-size: 4vw;
            line-height: 1.1;
            background: linear-gradient(to right, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin: 0 0 1vw 0;
            font-family: 'Segoe UI', Arial, sans-serif;
        }
        .main_text h1 span {
            font-size: 3vw;
            display: block;
        }
        .main_text p {
            max-width: 600px;
            margin: 1vw 0 0 0;
            font-size: 1.1rem;
            color: #444;
            background: rgba(255,255,255,0.7);
            padding: 1vw 1.5vw;
            border-radius: var(--radius);
            box-shadow: 0 2px 8px rgba(0,0,0,0.04);
        }
        .main_image img {
            width: 400px;
            max-width: 90vw;
            filter: drop-shadow(0 8px 32px var(--secondary));
            animation: float 3s ease-in-out infinite;
        }
        @keyframes float {
            0%, 100% { transform: translateY(0);}
            50% { transform: translateY(-18px);}
        }
        .social_icon {
            position: absolute;
            top: 50%;
            right: 2vw;
            display: flex;
            flex-direction: column;
            gap: 1vw;
            z-index: 10;
        }
        .social_icon i {
            font-size: 1.3rem;
            color: var(--secondary);
            background: #fff;
            border-radius: 50%;
            padding: 8px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.08);
            transition: background var(--transition), color var(--transition);
        }
        .social_icon i:hover {
            background: var(--primary);
            color: #fff;
        }
        .button {
            margin-top: 2vw;
            background: linear-gradient(to right, var(--primary), var(--secondary));
            border-radius: 30px;
            padding: 12px 32px;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.08);
            transition: transform var(--transition);
        }
        .button a {
            color: #fff;
            text-decoration: none;
            font-weight: bold;
            font-size: 1.1rem;
            letter-spacing: 1px;
        }
        .button i {
            color: #fff;
            transition: transform var(--transition);
        }
        .button:hover {
            transform: translateY(-4px) scale(1.04);
        }
        .button:hover i {
            transform: translateX(8px);
        }
        /* Scroll to Top Button */
        #scrollTopBtn {
            display: none;
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 999;
            background: linear-gradient(to right, var(--primary), var(--secondary));
            color: #fff;
            border: none;
            border-radius: 50%;
            width: 48px;
            height: 48px;
            font-size: 1.5rem;
            cursor: pointer;
            box-shadow: 0 2px 8px rgba(0,0,0,0.12);
            transition: background 0.3s, transform 0.3s;
        }
        #scrollTopBtn:hover {
            background: var(--secondary);
            transform: scale(1.1);
        }
        /* Products Section */
        section.products {
            padding: 5vw 0 2vw 0;
            background: var(--bg);
            min-height: 100vh;
        }
        .products h1 {
            font-size: 2.5rem;
            text-align: center;
            text-transform: uppercase;
            background: linear-gradient(to right, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 2vw;
            letter-spacing: 2px;
        }
        .products .box {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 2vw;
            width: 90%;
            margin: 0 auto;
        }
        .products .card {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: 0 2px 12px rgba(108,20,208,0.08);
            padding: 1.5vw;
            text-align: center;
            position: relative;
            overflow: hidden;
            transition: transform 0.25s, box-shadow 0.25s;
            will-change: transform;
            animation: fadeInUp 0.8s;
        }
        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(40px);}
            to { opacity: 1; transform: translateY(0);}
        }
        .products .card:hover {
            transform: translateY(-8px) scale(1.03);
            box-shadow: 0 8px 32px rgba(108,20,208,0.13);
        }
        .products .small_card {
            position: absolute;
            top: 18px;
            left: -50px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            opacity: 0;
            transition: left 0.3s, opacity 0.3s;
        }
        .products .card:hover .small_card {
            left: 12px;
            opacity: 1;
        }
        .products .small_card i {
            background: #f3f1f1;
            border-radius: 50%;
            width: 36px;
            height: 36px;
            line-height: 36px;
            font-size: 1.1rem;
            color: var(--secondary);
            border: 1.5px solid #999;
            transition: background 0.2s, color 0.2s;
            cursor: pointer;
        }
        .products .small_card i:hover {
            background: var(--primary);
            color: #fff;
        }
        .products .image img {
            width: 120px;
            margin: 1vw 0;
            transition: transform 0.3s;
            border-radius: 12px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.06);
        }
        .products .card:hover .image img {
            transform: scale(1.12) rotate(-6deg);
        }
        .products_text h2 {
            font-size: 1.3rem;
            margin: 1vw 0 0.5vw 0;
            color: var(--primary);
            letter-spacing: 1px;
        }
        .products_text p {
            color: #666;
            font-size: 0.98rem;
            margin: 0.5vw 0;
            min-height: 40px;
        }
        .products_text h3 {
            margin: 0.5vw 0;
            color: var(--secondary);
            font-size: 1.1rem;
            font-weight: bold;
        }
        .products_star {
            color: orange;
            margin-bottom: 1vw;
            font-size: 1.1rem;
        }
        .products_text .btn {
            display: inline-block;
            padding: 8px 22px;
            background: linear-gradient(to right, var(--primary), var(--secondary));
            color: #fff;
            border-radius: 20px;
            text-decoration: none;
            font-weight: 500;
            letter-spacing: 1px;
            transition: background 0.2s, transform 0.2s;
            margin-top: 0.5vw;
        }
        .products_text .btn:hover {
            background: var(--secondary);
            transform: scale(1.07);
        }
        /* About Section */
        section.about {
            padding: 5vw 0 2vw 0;
            background: #fff;
            min-height: 80vh;
        }
        .about h1 {
            font-size: 2.5rem;
            text-align: center;
            text-transform: uppercase;
            background: #000;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 2vw;
            letter-spacing: 2px;
        }
        .about h1 span {
            background: linear-gradient(to right, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-left: 12px;
        }
        .about_main {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            align-items: flex-start;
            gap: 4vw;
            margin-bottom: 2vw;
        }
        .about_image {
            display: flex;
            gap: 1vw;
            align-items: flex-start;
        }
        .about_small_image {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .about_small_image img {
            height: 70px;
            border-radius: 8px;
            cursor: pointer;
            opacity: 0.7;
            border: 2px solid transparent;
            transition: opacity 0.2s, border 0.2s;
        }
        .about_small_image img:hover, .about_small_image img.active {
            opacity: 1;
            border: 2px solid var(--primary);
        }
        .image_contaner img {
            border: 3px solid var(--secondary);
            border-radius: 18px;
            height: 320px;
            padding: 18px;
            box-shadow: 0 2px 12px rgba(108,20,208,0.13);
            background: #f6f6f6;
            transition: border 0.3s;
        }
        .about_text p {
            background: linear-gradient(to left, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1.6;
            max-width: 540px;
            text-align: justify;
            padding: 1.5vw 2vw;
            border: 2px solid var(--primary);
            border-radius: 18px;
            box-shadow: 0 2px 8px var(--primary, #c72092, 0.08);
            font-size: 1.05rem;
        }
        .about_btn {
            display: block;
            margin: 2vw auto 0 auto;
            color: var(--primary);
            background: none;
            padding: 10px 28px;
            border: 2px solid var(--primary);
            border-radius: 22px;
            text-decoration: none;
            font-weight: 600;
            box-shadow: 0 2px 8px var(--primary, #c72092, 0.08);
            transition: background 0.3s, color 0.3s;
            text-align: center;
            font-size: 1.1rem;
        }
        .about_btn:hover {
            background: var(--primary);
            color: #fff;
            border: 2px solid transparent;
        }
        /* Review Section */
        section.review {
            padding: 5vw 0 2vw 0;
            background: var(--bg);
            min-height: 80vh;
        }
        .review h1 {
            font-size: 2.5rem;
            text-align: center;
            text-transform: uppercase;
            margin-bottom: 2vw;
            letter-spacing: 2px;
        }
        .review h1 span {
            background: linear-gradient(to left, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-left: 12px;
        }
        .review_box {
            display: flex;
            flex-wrap: wrap;
            gap: 2vw;
            justify-content: center;
            margin-bottom: 2vw;
        }
        .review_card {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: 0 2px 12px rgba(0,0,0,0.08);
            padding: 1.5vw 2vw;
            width: 340px;
            max-width: 95vw;
            transition: transform 0.2s;
            animation: fadeInUp 0.8s;
        }
        .review_card:hover {
            transform: translateY(-6px) scale(1.03);
        }
        .profile {
            display: flex;
            align-items: center;
            gap: 1vw;
        }
        .profile_image {
            width: 54px;
            height: 54px;
            border-radius: 50%;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(0,0,0,0.10);
            transition: transform 0.2s;
        }
        .profile_image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .profile_image:hover {
            transform: scale(1.13);
        }
        .name strong {
            font-size: 1.1rem;
            color: var(--secondary);
        }
        .like {
            margin-top: 2px;
            color: orange;
            font-size: 1rem;
        }
        .comment p {
            margin-top: 1vw;
            text-align: justify;
            color: #444;
            font-size: 1rem;
        }
        /* Services Section */
        section.services {
            padding: 5vw 0 2vw 0;
            background: #fff;
            min-height: 60vh;
        }
        .services h1 {
            font-size: 2.5rem;
            text-align: center;
            text-transform: uppercase;
            margin-bottom: 2vw;
            letter-spacing: 2px;
        }
        .services h1 span {
            margin-left: 12px;
            background: linear-gradient(to left, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .services_cards {
            display: flex;
            flex-wrap: wrap;
            gap: 2vw;
            justify-content: center;
            margin-top: 2vw;
        }
        .services_box {
            background: var(--bg);
            border-radius: var(--radius);
            box-shadow: 0 2px 12px rgba(0,0,0,0.08);
            padding: 2vw 2vw 1vw 2vw;
            width: 260px;
            max-width: 95vw;
            text-align: center;
            transition: transform 0.2s;
        }
        .services_box:hover {
            transform: translateY(-6px) scale(1.04);
        }
        .services_box i {
            font-size: 2.5rem;
            color: orange;
            margin-bottom: 1vw;
        }
        .services_box h3 {
            font-size: 1.2rem;
            margin-bottom: 0.5vw;
            color: var(--primary);
        }
        .services_box p {
            color: #666;
            font-size: 1rem;
            margin-bottom: 1vw;
        }
        /* Login Form */
        section.login_form {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            align-items: center;
            min-height: 80vh;
            background: url(image/loging_bg.png) center/cover no-repeat;
            padding: 4vw 0;
        }
        .login_form .left img {
            width: 340px;
            max-width: 90vw;
            border-radius: 18px;
            box-shadow: 0 2px 12px rgba(0,0,0,0.10);
            margin-right: 2vw;
        }
        .login_form .right {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: 0 2px 12px rgba(0,0,0,0.08);
            padding: 2vw 3vw;
            min-width: 320px;
            max-width: 95vw;
            margin-top: 2vw;
        }
        .login_form .right h1 {
            font-size: 2rem;
            margin-bottom: 1vw;
            color: var(--secondary);
            font-family: 'Segoe Script', cursive, sans-serif;
        }
        .login_form .right p {
            margin-bottom: 0.5vw;
            font-weight: 500;
        }
        .login_form .user, .login_form .password {
            display: flex;
            align-items: center;
            border: 2px solid var(--secondary);
            border-radius: 6px;
            margin-bottom: 1vw;
            background: #f6f6f6;
        }
        .login_form .user i, .login_form .password i {
            margin: 0 12px;
            color: var(--primary);
            font-size: 1.1rem;
        }
        .login_form .username, .login_form .password input {
            border: none;
            background: none;
            outline: none;
            font-size: 1rem;
            padding: 10px;
            flex: 1;
            color: var(--text);
        }
        .login_form .password input[type="password"] {
            letter-spacing: 2px;
        }
        .login_form .forget {
            text-align: right;
            color: var(--secondary);
            cursor: pointer;
            font-size: 0.98rem;
            margin-bottom: 1vw;
            transition: text-decoration 0.2s;
        }
        .login_form .forget:hover {
            text-decoration: underline;
        }
        .login_form button[type="submit"] {
            width: 100%;
            color: #fff;
            padding: 10px 0;
            border: none;
            border-radius: 6px;
            font-size: 1.1rem;
            cursor: pointer;
            background: linear-gradient(to right, var(--primary), var(--secondary));
            font-weight: bold;
            margin-bottom: 1vw;
            transition: background 0.2s, transform 0.2s;
        }
        .login_form button[type="submit"]:hover {
            background: var(--secondary);
            transform: scale(1.04);
        }
        .loging_icon {
            display: flex;
            gap: 1vw;
            justify-content: center;
            margin-top: 1vw;
        }
        .loging_icon a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: #f3f3f3;
            box-shadow: 0 2px 8px rgba(0,0,0,0.10);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background 0.2s;
        }
        .loging_icon a:hover {
            background: var(--primary);
        }
        .loging_icon img {
            width: 22px;
            height: 22px;
        }
        /* Footer */
        footer {
            background: #f3f1f1;
            padding: 2vw 0;
            margin-top: 2vw;
        }
        .footer_main {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-around;
            gap: 2vw;
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
        }
        .footer_main .tag {
            min-width: 180px;
            margin: 1vw 0;
        }
        .footer_main .tag h1 {
            font-size: 1.2rem;
            margin: 1vw 0;
            color: var(--secondary);
            letter-spacing: 1px;
        }
        .footer_main .tag a {
            display: block;
            color: #222;
            text-decoration: none;
            margin: 0.5vw 0;
            font-size: 1rem;
            transition: color 0.2s;
        }
        .footer_main .tag a i {
            margin-right: 8px;
            color: var(--primary);
            transition: color 0.2s;
        }
        .footer_main .tag a:hover, .footer_main .tag a:hover i {
            color: var(--primary);
        }
        .footer_main .tag .social_link {
            display: flex;
            gap: 0.5vw;
            margin-top: 0.5vw;
        }
        .footer_main .tag .social_link a {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: #fff;
            color: var(--secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 2px 8px rgba(0,0,0,0.06);
            transition: background 0.2s, color 0.2s;
        }
        .footer_main .tag .social_link a:hover {
            background: var(--primary);
            color: #fff;
        }
        .footer_main .tag .search_bar {
            display: flex;
            margin-top: 1vw;
            background: #e0e0e0;
            border-radius: 18px;
            overflow: hidden;
            width: 220px;
        }
        .footer_main .tag .search_bar input {
            border: none;
            background: none;
            outline: none;
            padding: 8px 12px;
            flex: 1;
            font-size: 1rem;
            color: #222;
        }
        .footer_main .tag .search_bar button {
            background: linear-gradient(to right, var(--primary), var(--secondary));
            color: #fff;
            border: none;
            padding: 8px 16px;
            cursor: pointer;
            font-size: 1rem;
            border-radius: 0 18px 18px 0;
            transition: background 0.2s;
        }
        .footer_main .tag .search_bar button:hover {
            background: var(--secondary);
        }
        /* Responsive */
        @media (max-width: 1100px) {
            .main_content { flex-direction: column; align-items: flex-start;}
            .main_image img { width: 320px;}
            .about_main { flex-direction: column; align-items: center;}
            .about_text p { max-width: 90vw;}
        }
        @media (max-width: 700px) {
            .main_image img { width: 220px;}
            .about_image .image_contaner img { height: 180px;}
            .footer_main { flex-direction: column; align-items: center;}
            .footer_main .tag { min-width: 120px;}
        }