body {
    margin: 0;
    /* 应用你提供的背景图 */
    background: url("../bg.jpg") no-repeat center center;
    background-size: cover;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    font-family: "Microsoft YaHei", sans-serif;
}

.mhy-wrapper {
    width: 95%;
    max-width: 400px;
    perspective: 1000px;
}

/* 仿梦幻手游窗口样式 */
.mhy-window {
    background: rgba(244, 232, 209, 0.92); /* 宣纸黄，带点透明度 */
    border: 4px solid #5d3a24; /* 深木边框 */
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.6), 0 0 0 2px #b39364; /* 金边描边 */
    position: relative;
    overflow: hidden;
}

/* 顶部红木装饰条 */
.mhy-header {
    background: linear-gradient(to bottom, #8e2a1a, #5a1a10);
    padding: 12px;
    text-align: center;
    border-bottom: 2px solid #b39364;
}

.mhy-title {
    color: #ffcc00;
    font-weight: bold;
    font-size: 18px;
    text-shadow: 1px 1px 2px #000;
}

.mhy-body {
    padding: 20px;
}

/* 内部输入框风格 */
.mhy-info-box {
    background: rgba(93, 58, 36, 0.08);
    border: 1px solid #c4b095;
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 20px;
}

.mhy-input-group {
    display: flex;
    align-items: center;
    border-bottom: 1px dashed #c4b095;
    padding: 5px 0;
}

.mhy-input-group:last-child { border-bottom: none; }

.mhy-prefix {
    color: #5d3a24;
    font-weight: bold;
    width: 50px;
    font-size: 14px;
}

.mhy-input-group input {
    background: transparent;
    border: none;
    color: #8e2a1a;
    font-weight: bold;
    width: 100%;
    outline: none;
}

/* 档位选择 */
.mhy-section-title {
    color: #5d3a24;
    font-weight: bold;
    font-size: 14px;
    margin-bottom: 10px;
}

.mhy-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.mhy-option input { display: none; }
.mhy-option span {
    display: block;
    background: #e4d5b7;
    border: 1px solid #b39364;
    padding: 10px;
    text-align: center;
    color: #5d3a24;
    border-radius: 4px;
    font-size: 13px;
    transition: 0.2s;
}

.mhy-option input:checked + span {
    background: #8e2a1a;
    color: #ffcc00;
    border-color: #ffcc00;
    box-shadow: inset 0 0 8px rgba(0,0,0,0.4);
}

/* 按钮样式：大块亮金 */
.mhy-btn-pay {
    width: 100%;
    margin-top: 25px;
    padding: 12px;
    background: linear-gradient(to bottom, #ffd800, #ff8a00);
    border: 2px solid #5d3a24;
    color: #4a2b1d;
    font-weight: bold;
    font-size: 18px;
    cursor: pointer;
    border-radius: 6px;
    box-shadow: 0 4px 0 #8e2a1a;
}

.mhy-btn-pay:active {
    transform: translateY(2px);
    box-shadow: 0 1px 0 #8e2a1a;
}