body {
    font-family: sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    background-color: #f0f0f0;
    color: #333;
    transition: background-color 0.3s, color 0.3s;
}

body.dark-mode {
    background-color: #333;
    color: #f0f0f0;
}

/* 顶部导航栏样式 */
.top-nav {
    width: 100%;
    background-color: #fff;
    padding: 10px 0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: center; /* 居中显示导航按钮 */
    position: relative;
    margin-bottom: 20px;
     transition: background-color 0.3s;
}

body.dark-mode .top-nav {
    background-color: #222;
    box-shadow: 0 2px 4px rgba(255, 255, 255, 0.1);
}

.nav-buttons {
    display: flex;
}

.nav-button {
    padding: 8px 15px;
    margin: 0 10px;
     border: 2px solid #3498db; /* 蓝色边框 */
    border-radius: 20px; /* 圆角 */
    background-color: transparent;
    color: #3498db;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s, color 0.3s;
}

.nav-button:hover {
    background-color: #3498db;
    color: white;
}

body.dark-mode .nav-button {
     border-color: #7bbef2;
    color: #7bbef2;
}

body.dark-mode .nav-button:hover {
    background-color: #7bbef2;
    color: #333;
}

/* 公告弹窗样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 1;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.4);
}

.modal-content {
    background-color: #fefefe;
    margin: 15% auto;
    padding: 20px;
    border: 1px solid #888;
    width: 80%;
    max-width: 600px;
    border-radius: 10px;
    position: relative;
     transition: background-color 0.3s, color 0.3s;
}

body.dark-mode .modal-content {
     background-color: #444;
     border: 1px solid #666;
}
.close {
    color: #aaa;
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close:hover,
.close:focus {
    color: black;
    text-decoration: none;
    cursor: pointer;
}
.centered-text {
    text-align: center;
    margin-top: 10px;
    margin-bottom: 10px;
}
.container {
    width: 90%;
    max-width: 800px;
    padding: 20px;
    background-color: #fff;
    border-radius: 10px;
     box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: background-color 0.3s, color 0.3s;
}
body.dark-mode .container {
    background-color: #444;
      box-shadow: 0 4px 8px rgba(255, 255, 255, 0.1);
}

h1 {
    margin-bottom: 20px;
}

h2 {
     margin-top: 20px;
    margin-bottom: 10px;
}
.theme-toggle {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 24px;
    cursor: pointer;
    background: none;
    border: none;
    color: #333;
    transition: color 0.3s;
}

body.dark-mode .theme-toggle {
    color: #f0f0f0;
}

.divination-methods,
#time-divination-options,
#number-input,
#custom-number-input,
#custom-gong-input {
    display: flex;
    justify-content: center;
    margin-bottom: 15px;
     flex-wrap: wrap;
}

.main-method,
#month-day-hour,
#hour-ke-minute,
#random-number,
#custom-number,
#custom-number-submit,
#custom-gong-submit
{
    padding: 10px 15px;
    margin: 5px;
   border: 2px solid #3498db; /* 蓝色边框 */
    border-radius: 20px; /* 圆角 */
    background-color: transparent;
    color: #3498db;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s, color 0.3s;
}

.main-method:hover,
#month-day-hour:hover,
#hour-ke-minute:hover,
#random-number:hover,
#custom-number:hover,
#custom-number-submit:hover,
#custom-gong-submit:hover {
    background-color: #3498db;
    color: white;
}
body.dark-mode .main-method,
body.dark-mode #month-day-hour,
body.dark-mode #hour-ke-minute,
body.dark-mode #random-number,
body.dark-mode #custom-number,
body.dark-mode #custom-number-submit,
body.dark-mode #custom-gong-submit {
     border-color: #7bbef2;
    color: #7bbef2;
}
body.dark-mode .main-method:hover,
body.dark-mode #month-day-hour:hover,
body.dark-mode #hour-ke-minute:hover,
body.dark-mode #random-number:hover,
body.dark-mode #custom-number:hover,
body.dark-mode #custom-number-submit:hover,
body.dark-mode #custom-gong-submit:hover {
    background-color: #7bbef2;
    color: #333;
}
.main-method:nth-child(-n+3),
#month-day-hour,
#hour-ke-minute,
#random-number,
#custom-number{
   background-color: rgba(52, 152, 219, 0.1); /* 蓝色半透明背景 */
    border-radius: 20px;
}
body.dark-mode .main-method:nth-child(-n+3),
body.dark-mode #month-day-hour,
body.dark-mode #hour-ke-minute,
body.dark-mode #random-number,
body.dark-mode #custom-number {
  background-color: rgba(123, 190, 242, 0.1);
}
.custom-input,
.custom-gong {
    margin: 5px;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 5px;
    text-align: center;
    box-sizing: border-box;
}

.custom-input:focus,
.custom-gong:focus {
    outline: none;
    border-color: #3498db;
}
#result {
    margin-top: 20px;
      border-radius: 10px;
     padding: 10px;
     box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
       transition: background-color 0.3s, color 0.3s;
}
body.dark-mode #result {
     box-shadow: 0 2px 4px rgba(255, 255, 255, 0.1);
       border: 1px solid #666;
       background-color: #444;
}
.result-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr); /* 4列等分 */
  gap: 10px; /* 网格项之间的间隙 */
  margin-bottom: 10px;
    text-align: center; /* 居中显示文本 */
}

.result-header {
    font-weight: bold;
    padding: 8px;
    text-align: center;
}

.gong,
#shi-chen {
    padding: 10px;
     border: 1px solid #ddd; /* 添加边框 */
    border-radius: 5px;
    text-align: center;
    font-weight: bold;
}

#relations,
#fortune,
#divination-method,
#used-numbers {
    margin-top: 10px;
    padding: 8px;
     text-align: center;
}
#gong-details {
    margin-top: 20px;
     padding: 15px;
    border: 1px solid #ddd;
    border-radius: 10px;
     display: flex;
     flex-direction: column; /* 将内容排列成列 */
     align-items: center; /* 水平居中对齐 */
}

#gong-details > h3 {
    margin-bottom: 15px;
}
#gong-details div {
    margin-bottom: 10px; /* 确保每个div之间有间距 */
    text-align: center; /* 居中显示文本 */
}
.ju-xiang-container {
    display: flex;
    justify-content: center; /* 修改为居中对齐 */
    flex-wrap: wrap;
    margin-top: 10px;
     padding: 10px;
    border: 1px solid #ddd;
    border-radius: 10px;
      box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
      transition: background-color 0.3s, color 0.3s;
}
body.dark-mode .ju-xiang-container {
       box-shadow: 0 2px 4px rgba(255, 255, 255, 0.1);
        border: 1px solid #666;
       background-color: #444;
}
.ju-xiang-item {
    display: flex;
    flex-direction: column; /* 垂直排列元素 */
    align-items: center;   /* 水平居中元素 */
    width: 30%;
     min-width: 200px; /* 保证在小屏幕下不会太窄 */
    margin: 10px; /* 添加外边距以增加间距 */
    box-sizing: border-box; /* 确保宽度包括内边距和边框 */
     text-align: center;
}
.ju-xiang-header {
    font-weight: bold;
    margin-bottom: 5px;
}
.ju-xiang-content {
   display: flex;
   flex-direction: column;
   align-items: center; /* 水平居中宫位元素 */
}
.ju-xiang-pan {
    display: flex;
    flex-direction: column;
    align-items: center;
     margin-bottom: 20px;
    border: 1px solid #ddd;
    padding: 10px;
    border-radius: 10px;
}

.ju-xiang-pan-name {
    font-size: 1.2em;
    font-weight: bold;
    margin-bottom: 10px;
}

.ju-xiang-gong-container {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 10px;
}

.ju-xiang-gong {
    padding: 10px;
    border-radius: 5px;
    text-align: center;
    font-weight: bold;
     min-width: 50px; /* 防止宫位太窄 */
      cursor: pointer;
     color: #fff;
}
.ju-xiang-bagua-info {
    margin-top: 10px;
}
#bagua-result {
    margin-top: 20px;
     padding: 10px;
      border: 1px solid #ddd;
    border-radius: 10px;
      box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
      text-align: center;
       transition: background-color 0.3s, color 0.3s;
}
body.dark-mode #bagua-result{
   box-shadow: 0 2px 4px rgba(255, 255, 255, 0.1);
        border: 1px solid #666;
       background-color: #444;
}
#bagua-info p {
    margin: 5px 0;
}
#gong-meanings {
     margin-top: 20px;
     padding: 10px;
      border: 1px solid #ddd;
    border-radius: 10px;
     text-align: center;
      box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
     transition: background-color 0.3s, color 0.3s;
}
body.dark-mode #gong-meanings {
     box-shadow: 0 2px 4px rgba(255, 255, 255, 0.1);
       border: 1px solid #666;
      background-color: #444;
}
#gong-meanings p {
    margin: 5px 0;
}
.restart-button {
    margin-top: 20px;
    padding: 10px 15px;
    border: none;
    border-radius: 20px;
    background-color: #3498db;
    color: white;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s;
}

.restart-button:hover {
    background-color: #2980b9;
}

/* 适配移动端 */
@media (max-width: 768px) {
  .custom-input {
      width: calc(33% - 10px); /* 三个输入框在一行显示，预留一些间距 */
    }
    .theme-toggle {
        top: 10px;
        right: 10px; /* 将按钮移至右上角 */
    }
    .nav-buttons {
       margin-right: 10px;
    }
    .nav-button {
        padding: 6px 10px;
       margin: 0 3px;
    }
      .modal-content {
        margin: 25% auto; /* 增加顶部边距 */
          width: 90%;
    }
    .ju-xiang-item {
          width: 45%; /* 调整宽度以避免过于拥挤 */
    }
      .main-method:nth-child(-n+3),
        #month-day-hour,
        #hour-ke-minute,
       #random-number,
        #custom-number{
        padding: 5px;
    }
    .divination-methods,
    #time-divination-options,
    #number-input {
       flex-direction: column; /* 移动端垂直排列 */
        align-items: center;
    }
     #random-number,
    #custom-number {
       width: 40%; /* 调整宽度使其在一行内显示 */
        margin: 5px 0;
    }
      .top-nav {
          justify-content: space-around;
      }
      .nav-buttons {
        margin: 0;
    }
}