:root {
            --primary-pink: #ff9ec6;
            --secondary-pink: #ffc2dd;
            --light-pink: #ffe4f2;
            --purple: #d9a7ff;
            --lavender: #e6d4ff;
            --white: #ffffff;
            --text-color: #8a4b76;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Comic Sans MS', 'Yuanti SC', 'YouYuan', 'Microsoft YaHei', sans-serif;
        }

        body {
            background: linear-gradient(135deg, var(--light-pink) 0%, var(--lavender) 100%);
            color: var(--text-color);
            min-height: 100vh;
            padding: 20px;
            position: relative;
            overflow-x: hidden;
        }

        /* 装饰元素 */
        .decoration {
            position: fixed;
            z-index: -1;
        }

        .cloud {
            width: 120px;
            height: 40px;
            background: var(--white);
            border-radius: 60px;
            position: absolute;
            opacity: 0.7;
        }

        .cloud:before,
        .cloud:after {
            content: '';
            position: absolute;
            background: var(--white);
            border-radius: 50%;
        }

        .cloud:before {
            width: 50px;
            height: 50px;
            top: -25px;
            left: 15px;
        }

        .cloud:after {
            width: 40px;
            height: 40px;
            top: -20px;
            right: 15px;
        }

        .heart {
            position: absolute;
            width: 20px;
            height: 20px;
            transform: rotate(45deg);
            background: var(--primary-pink);
            opacity: 0.7;
        }

        .heart:before,
        .heart:after {
            content: '';
            position: absolute;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--primary-pink);
        }

        .heart:before {
            top: -10px;
            left: 0;
        }

        .heart:after {
            top: 0;
            left: -10px;
        }

        .container {
            max-width: 600px;
            margin: 0 auto;
        }

        .header {
            text-align: center;
            margin-bottom: 30px;
            position: relative;
        }

        .logo {
            font-size: 28px;
            font-weight: bold;
            color: var(--text-color);
            margin-bottom: 10px;
            text-shadow: 2px 2px 4px rgba(255, 158, 198, 0.3);
            display: inline-block;
            padding: 10px 20px;
            border-radius: 50px;
            background: rgba(255, 255, 255, 0.7);
            box-shadow: 0 8px 20px rgba(255, 158, 198, 0.2);
        }

        .subtitle {
            font-size: 16px;
            color: var(--text-color);
            opacity: 0.8;
        }

        .card {
            background: rgba(255, 255, 255, 0.85);
            border-radius: 20px;
            padding: 25px;
            margin-bottom: 25px;
            box-shadow: 0 10px 25px rgba(255, 158, 198, 0.2);
            border: 2px solid var(--secondary-pink);
            overflow: hidden;
        }

        .card:before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 10px;
            background: linear-gradient(90deg, var(--primary-pink), var(--purple));
        }

        .card-title {
            font-size: 22px;
            margin-bottom: 20px;
            color: var(--text-color);
            text-align: center;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .card-title i {
            margin-right: 10px;
            color: var(--primary-pink);
        }

        .input-group {
            margin-bottom: 20px;
        }

        .input-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: bold;
            color: var(--text-color);
            font-size: 16px;
        }

        .input-field {
            width: 100%;
            padding: 15px 20px;
            border: 2px solid var(--secondary-pink);
            border-radius: 15px;
            font-size: 16px;
            background: var(--white);
            color: var(--text-color);
            transition: all 0.3s;
        }

        .input-field:focus {
            outline: none;
            border-color: var(--primary-pink);
            box-shadow: 0 0 0 3px rgba(255, 158, 198, 0.3);
        }

        .btn {
            display: block;
            width: 100%;
            padding: 15px;
            border: none;
            border-radius: 15px;
            font-size: 18px;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary-pink) 0%, var(--purple) 100%);
            color: white;
            box-shadow: 0 5px 15px rgba(255, 158, 198, 0.4);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(255, 158, 198, 0.6);
        }

        .btn-primary:active {
            transform: translateY(1px);
        }

        .result-box {
            margin-top: 20px;
            padding: 20px;
            background: var(--light-pink);
            border-radius: 10px;
        }

        .result-item {
            margin-bottom: 15px;
        }

        .result-item label {
            display: block;
            margin-bottom: 5px;
            font-weight: bold;
            color: var(--text-color);
        }

        .result-input {
            width: 100%;
            padding: 12px 15px;
            border: 2px solid var(--secondary-pink);
            border-radius: 10px;
            background: var(--white);
            color: var(--text-color);
            font-size: 14px;
        }

        .btn-group {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px;
            margin-top: 15px;
        }

        .btn-copy {
            padding: 12px;
            border: none;
            border-radius: 10px;
            font-size: 16px;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s;
            background: var(--primary-pink);
            color: white;
        }

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

        .footer {
            text-align: center;
            margin-top: 30px;
            color: var(--text-color);
            opacity: 0.7;
            font-size: 14px;
        }

        /* 烟花动画 */
        .firework {
            position: absolute;
            width: 5px;
            height: 5px;
            border-radius: 50%;
            box-shadow: 0 0 10px 2px var(--primary-pink);
            z-index: -1;
        }

        @keyframes firework {
            0% {
                transform: translate(0, 0);
                opacity: 1;
            }
            100% {
                transform: translate(var(--tx), var(--ty));
                opacity: 0;
            }
        }

        /* 响应式设计 */
        @media (max-width: 480px) {
            .container {
                padding: 0 10px;
            }
            .card {
                padding: 20px 15px;
            }
            .logo {
                font-size: 24px;
            }
        }