/* 基础样式：复位 + 居中"手机框"容器 + toast + 模态框 + 浮层（H5 版） */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; width: 100%; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background: #e8e8e8;
    display: flex;
    justify-content: center;
    -webkit-user-select: none;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.container {
    width: 100%;
    max-width: 480px;
    min-height: 100vh; /* 回退方案：旧浏览器 */
    min-height: 100dvh; /* 动态视口高度：排除浏览器UI（地址栏、工具栏） */
    background: #ffffff;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    padding: 10px;
    overflow: hidden;
}

/* 窄屏手机优化（高宽比 > 1.9）：适度缩小padding */
@media (max-aspect-ratio: 10/19) {
    .container {
        padding: 6px !important;
    }
}

button {
    font-family: inherit;
    cursor: pointer;
    background: #f0f0f0;
    color: #333;
}

/* ---- Toast（替代 wx.showToast）---- */
.toast {
    position: fixed;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.75);
    color: #fff;
    padding: 10px 16px;
    border-radius: 6px;
    font-size: 14px;
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.2s ease;
    pointer-events: none;
    max-width: 80%;
    text-align: center;
    line-height: 1.4;
}
.toast.show { opacity: 1; }

/* ---- 模态框（替代 wx.showModal）---- */
.modal-mask {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1001;
}
.modal-box {
    background: #fff;
    border-radius: 10px;
    min-width: 260px;
    max-width: 80%;
    padding: 20px;
    text-align: center;
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.25);
}
.modal-title { font-size: 16px; font-weight: bold; margin-bottom: 10px; color: #222; }
.modal-content { font-size: 14px; color: #333; white-space: pre-wrap; margin-bottom: 16px; text-align: left; }
.modal-buttons { display: flex; gap: 12px; justify-content: center; }
.modal-btn { padding: 8px 20px; border: none; border-radius: 6px; font-size: 14px; }
.modal-confirm { background: #4CAF50; color: #fff; }
.modal-cancel { background: #e0e0e0; color: #333; }

/* ---- 通用浮层（规则 / 设置）---- */
.overlay-mask {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1002;
}
.overlay-panel {
    background: #fff;
    border-radius: 10px;
    width: 90%;
    max-width: 440px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    padding: 16px;
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.25);
}
.overlay-title { font-size: 18px; font-weight: bold; text-align: center; margin-bottom: 12px; color: #222; }
.overlay-body { flex: 1; overflow-y: auto; }
.overlay-footer { margin-top: 14px; display: flex; gap: 12px; }
.overlay-footer button {
    flex: 1;
    padding: 10px 0;
    font-size: 15px;
    border: none;
    border-radius: 6px;
    color: #fff;
    background: #4CAF50;
}
.overlay-footer .secondary { background: #9e9e9e; }

/* 小屏幕优化：遮罩层面板宽度100%，左右无边距 */
@media (max-height: 768px) {
    .overlay-panel {
        width: 100%;
        max-width: 100%;
        border-radius: 0;
    }
}

/* 窄屏手机优化：遮罩层面板宽度100%，确保完全覆盖 */
@media (max-aspect-ratio: 10/19) {
    .overlay-panel {
        width: 100% !important;
        max-width: 100% !important;
        border-radius: 0 !important;
        margin: 0 !important;
    }
}