:root {
         --theme: #009c3b;
         --theme-dark: #009c3b;
         --bg: #f9fff9;
         --text: #333;
     }

     * {
         margin: 0;
         padding: 0;
         box-sizing: border-box;
         font-family: "Poppins", Arial, sans-serif;
     }

     body {
         background: var(--bg);
         color: var(--text);
         display: flex;
         align-items: center;
         justify-content: center;
         height: 100dvh;
         overflow: hidden;
     }

     .phone-frame {
         background: #fff;
         width: 90vw;
         max-width: 420px;
         height: 100%;
         max-height: calc(90vw * 16 / 9);
         display: flex;
         flex-direction: column;
         box-shadow: 0 0 40px rgba(0, 0, 0, 0.1);
         overflow: hidden;
         position: relative;
     }

     .content-area {
         flex: 1;
         display: flex;
         flex-direction: column;
         overflow-y: auto;
         scrollbar-width: none;
     }

     .content-area::-webkit-scrollbar {
         display: none;
     }

     nav {
         background: #fff;
         box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
         padding: 10px 20px;
         display: flex;
         align-items: center;
         justify-content: space-between;
         z-index: 100;
     }

     nav .logo {
         display: flex;
         align-items: center;
         gap: 10px;
     }

     nav .logo img {
         width: 40px;
         height: 40px;
         border-radius: 50%;
     }

     nav .logo span {
         font-weight: 700;
         font-size: 1.1rem;
         color: var(--theme-dark);
     }

     .menu-toggle {
         display: flex;
         flex-direction: column;
         cursor: pointer;
         gap: 5px;
     }

     .menu-toggle span {
         background: var(--theme-dark);
         height: 3px;
         width: 25px;
         border-radius: 5px;
         transition: all 0.3s ease;
     }

     nav ul {
         list-style: none;
         display: none;
         position: absolute;
         top: 65px;
         right: 10px;
         background: #fff;
         flex-direction: column;
         width: 180px;
         padding: 10px;
         box-shadow: 0 6px 15px rgba(0, 0, 0, 0.15);
         border-radius: 10px;
         animation: fadeIn 0.3s ease;
         z-index: 99;
     }

     nav ul.show {
         display: flex;
     }

     nav ul li a {
         text-decoration: none;
         color: var(--theme-dark);
         font-weight: 600;
         padding: 8px 10px;
         border-radius: 8px;
         display: block;
         transition: background 0.3s ease;
     }

     nav ul li a:hover {
         background: var(--theme);
         color: #fff;
     }

     @keyframes fadeIn {
         from {
             opacity: 0;
             transform: translateY(-10px);
         }

         to {
             opacity: 1;
             transform: translateY(0);
         }
     }

     .box {
         max-width: 90%;
         margin: 20px auto;
         background: #fff;
         border-radius: 20px;
         box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
         text-align: center;
         padding: 25px 20px;
         animation: fadeIn 0.8s ease;
     }

     .box img {
         width: 100px;
         border-radius: 50%;
         margin-bottom: 15px;
     }

     h1 {
         font-size: 1.4rem;
         color: var(--theme-dark);
         margin-bottom: 10px;
     }

     p {
         font-size: 0.9rem;
         color: #555;
         margin-bottom: 25px;
     }

     .button-group {
         display: flex;
         justify-content: center;
         gap: 15px;
     }

     .btn {
         flex: 1;
         background: var(--theme);
         color: white;
         padding: 10px 0;
         border: none;
         border-radius: 10px;
         font-size: 0.95rem;
         font-weight: 600;
         cursor: pointer;
         transition: all 0.3s ease;
         text-decoration: none;
         box-shadow: 0 4px 10px rgba(0, 156, 59, 0.3);
     }

     .btn:hover {
         background: var(--theme-dark);
         transform: translateY(-2px);
     }

     .content {
         background: #fff;
         margin: 10px;
         padding: 20px;
         border-radius: 16px;
         box-shadow: 0 6px 20px rgba(0, 0, 0, 0.06);
     }

     .content h2,
     .content h3,
     .content h1 {
         color: var(--theme-dark);
         border-bottom: 2px solid #c8f7d4;
         padding-bottom: 6px;
         margin-bottom: 10px;
         font-size: 1.1rem;
     }

     ul {
         padding-left: 15px;
     }

     ul li {
         margin-bottom: 8px;
         font-size: 0.9rem;
     }

     footer {
         background: #fff;
         text-align: center;
         font-size: 0.8rem;
         color: #777;
         padding: 12px;
         border-top: 1px solid #eee;
         margin-top: auto;
     }

     footer a {
         color: var(--theme);
         text-decoration: none;
         font-weight: 600;
     }

     .hero-img {
         width: 100%;
         height: auto;
         border-radius: 12px;
         margin-bottom: 20px;
         box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
     }

     @media (max-width: 480px) {
         body {
             background: var(--bg);
             height: 100dvh;
         }

         .phone-frame {
             width: 100%;
             max-width: none;
             border-radius: 0;
             box-shadow: none;
             max-height: none;
         }
     }



     .banner {
         width: 100%;
         padding: 10px;
     }

     .banner img {
         width: 100%;
         border-radius: 20px;
         display: block;
         object-fit: cover;
         box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
     }

     .content a {
         color: #009c3b;
         font-weight: 600;
         text-decoration: none;
     }

     .content a:hover {
         color: #008431;
         text-decoration: underline;
     }