/* ===== 全局重置 ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
    background: #0b0d17; /* 备用底色 */
    background-image: url('/static/images/background.jpg');
    background-size: cover;
    background-position: center center;
    background-attachment: fixed;
    color: #e0e8f0;
    font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    min-height: 100vh;
}

/* 所有主要容器改为半透明，并添加模糊效果（可选） */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
  color: #66d9f7;
  text-decoration: none;
}

/* ===== 顶部导航 ===== */
.top-bar {
    background: rgba(20, 26, 43, 0.75);
    backdrop-filter: blur(4px); /* 毛玻璃效果（可选） */
    border-bottom: 2px solid rgba(58, 107, 140, 0.6);
    box-shadow: 0 2px 12px rgba(0, 180, 216, 0.15);
    padding: 12px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.6rem;
  font-weight: bold;
  color: #aad8ff;
}

.logo i {
  color: #4dc3ff;
  margin-right: 8px;
}

.logo .sub {
  font-size: 0.8rem;
  color: #8ab4d6;
  font-weight: normal;
  margin-left: 10px;
}

.nav-links a {
  color: #c0d8e8;
  margin-left: 20px;
  font-size: 0.95rem;
  transition: 0.2s;
}

.nav-links a:hover {
  color: #7fc9ff;
}

.nav-links .user {
  color: #f0d080;
  border-left: 1px solid #3a5a6a;
  padding-left: 20px;
}

/* ===== 主体 ===== */
.main-content {
    padding: 30px 0;
    min-height: 70vh;
    background: rgba(11, 13, 23, 0.65);
    backdrop-filter: blur(4px);
    border-radius: 12px;
    margin: 20px 0;
    padding: 30px 20px;
}

/* ===== 搜索区域 ===== */
.search-section {
  background: linear-gradient(145deg, #1a2238, #0f172a);
  border-radius: 12px;
  padding: 24px 30px;
  margin-bottom: 30px;
  border: 1px solid #2a4a6a;
}

.search-form {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 15px 30px;
}

.field-group {
  flex: 1 0 180px;
}

.field-group label {
  display: block;
  font-size: 0.85rem;
  color: #8ab4d6;
  margin-bottom: 4px;
}

.field-group input {
  width: 100%;
  padding: 8px 12px;
  background: #0c1424;
  border: 1px solid #2a4a6a;
  border-radius: 6px;
  color: #e0f0ff;
  font-size: 1rem;
  transition: 0.2s;
}

.field-group input:focus {
  outline: none;
  border-color: #4dc3ff;
  box-shadow: 0 0 0 3px rgba(77, 195, 255, 0.2);
}

.btn-primary {
  background: linear-gradient(135deg, #1f6d8a, #0f4a6a);
  color: white;
  border: none;
  padding: 10px 28px;
  border-radius: 6px;
  font-weight: bold;
  cursor: pointer;
  font-size: 1rem;
  transition: 0.2s;
  box-shadow: 0 0 12px rgba(0, 180, 216, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #2a8ab0, #1a5a80);
  transform: scale(1.02);
  box-shadow: 0 0 20px #2a8ab0;
}

/* ===== 表格 ===== */
.train-list h2 {
  font-size: 1.4rem;
  color: #b0d4f0;
  border-bottom: 1px solid #2a4a6a;
  padding-bottom: 10px;
  margin-bottom: 20px;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: #111b2e;
  border-radius: 8px;
  overflow: hidden;
}

thead {
  background: #1a2a40;
  color: #9ac2e0;
}

th,
td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid #1f2f48;
}

tbody tr:hover {
  background: #1a2a44;
}

.train-id {
  font-weight: bold;
  color: #8fd4ff;
}

.sold-out {
  color: #ff6b6b;
  font-weight: bold;
}

.low-stock {
  color: #ffa94d;
  font-weight: bold;
}

.sold-out-text {
  color: #666;
  font-style: italic;
}

.btn-booking {
  background: #2a6a8a;
  color: white;
  padding: 6px 14px;
  border-radius: 4px;
  font-size: 0.9rem;
  transition: 0.2s;
  display: inline-block;
}

.btn-booking:hover {
  background: #3a8ab0;
  box-shadow: 0 0 12px #3a8ab0;
}

.btn-secondary {
  background: #3a3a5a;
  color: #ccc;
  padding: 8px 18px;
  border-radius: 4px;
  transition: 0.2s;
}

.btn-secondary:hover {
  background: #5a5a7a;
}

/* ===== 订单填写 ===== */
.order-form-container {
  max-width: 600px;
  margin: 0 auto;
  background: #111b2e;
  padding: 30px;
  border-radius: 12px;
  border: 1px solid #2a4a6a;
}

.order-form .field-group {
  flex: 1 0 100%;
  margin-bottom: 20px;
}

.order-form .field-group label {
  color: #b0d4f0;
}

.form-actions {
  display: flex;
  gap: 15px;
  margin-top: 20px;
}

/* ===== 占座成功 ===== */
.success-container {
  max-width: 600px;
  margin: 40px auto;
  text-align: center;
}

.success-icon {
  font-size: 4rem;
  color: #4dc3ff;
  margin-bottom: 20px;
}

.countdown-box {
  font-size: 3rem;
  font-weight: bold;
  background: #0a1428;
  padding: 20px;
  border-radius: 12px;
  border: 2px solid #2a6a8a;
  margin: 20px 0;
  color: #ffd966;
  letter-spacing: 4px;
}

.pay-actions {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin: 30px 0;
}

.notice {
  color: #8ab4d6;
  font-size: 0.9rem;
}

/* ===== 页脚 ===== */
footer {
    background: rgba(10, 15, 30, 0.7);
    backdrop-filter: blur(4px);
    border-top: 1px solid rgba(26, 42, 64, 0.5);
    padding: 20px 0;
    text-align: center;
    color: #5a7a8a;
    margin-top: 40px;
}

/* 订单查询 */
.query-container {
  max-width: 600px;
  margin: 40px auto;
  background: #111b2e;
  padding: 30px;
  border-radius: 12px;
  border: 1px solid #2a4a6a;
}

.query-container .search-form {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  margin-top: 20px;
}

.query-container .field-group {
  flex: 3 1 300px;
}

.query-container .field-group input {
  width: 100%;
  padding: 10px 12px;
  background: #0c1424;
  border: 1px solid #2a4a6a;
  border-radius: 6px;
  color: #e0f0ff;
}

.query-container .hint {
  margin-top: 20px;
  color: #8ab4d6;
  font-size: 0.9rem;
}

/* 订单结果 */
.result-container {
  max-width: 700px;
  margin: 40px auto;
}

.order-card {
  background: #111b2e;
  padding: 25px 30px;
  border-radius: 12px;
  border: 1px solid #2a4a6a;
}

.order-card p {
  margin: 10px 0;
  border-bottom: 1px solid #1f2f48;
  padding-bottom: 8px;
}

.order-card p:last-of-type {
  border-bottom: none;
}

.status-badge {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 20px;
  font-weight: bold;
  font-size: 0.9rem;
}

.status-badge.pending {
  background: #f0ad4e;
  color: #1a1a2e;
}

.status-badge.paid {
  background: #5cb85c;
  color: #1a1a2e;
}

.status-badge.cancelled {
  background: #d9534f;
  color: #1a1a2e;
}

.countdown-display {
  font-weight: bold;
  color: #ffd966;
  font-size: 1.2rem;
}

.result-actions {
  margin-top: 20px;
  text-align: center;
}

.not-found {
  text-align: center;
  padding: 40px 20px;
  background: #111b2e;
  border-radius: 12px;
}

.not-found i {
  color: #8ab4d6;
  margin-bottom: 20px;
}

.not-found p {
  font-size: 1.2rem;
  margin: 20px 0;
}

/* ===== 自定义选择框 ===== */
.field-group select {
  width: 100%;
  padding: 8px 12px;
  background: #0c1424;
  border: 1px solid #2a4a6a;
  border-radius: 6px;
  color: #e0f0ff;
  font-size: 1rem;
  appearance: none;
  /* 移除默认箭头 */
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%234dc3ff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 14px;
  padding-right: 32px;
  cursor: pointer;
  transition: 0.2s;
}

.field-group select:focus {
  outline: none;
  border-color: #4dc3ff;
  box-shadow: 0 0 0 3px rgba(77, 195, 255, 0.2);
}

.field-group select option {
  background: #1a2238;
  color: #e0f0ff;
  padding: 6px;
}

/* 针对旧版浏览器的兼容 */
.field-group select::-ms-expand {
  display: none;
}

/* ===== 至冬国介绍 ===== */
.snezhnaya-intro {
  background: linear-gradient(145deg, #1a2238, #0f172a);
  border: 1px solid #2a4a6a;
  border-radius: 12px;
  padding: 20px 30px;
  margin: 30px 0 20px 0;
  box-shadow: 0 0 20px rgba(0, 180, 216, 0.1);
}

.snezhnaya-intro h3 {
  color: #aad8ff;
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.snezhnaya-intro h3 i {
  color: #4dc3ff;
  margin-right: 10px;
}

.snezhnaya-intro p {
  color: #c0d8e8;
  line-height: 1.8;
  margin: 0;
}

/* 通知页面 */
.notifications-container {
  max-width: 800px;
  margin: 0 auto;
}

.notification-item {
  background: #111b2e;
  border: 1px solid #2a4a6a;
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 20px;
}

.notification-item h3 {
  color: #aad8ff;
  margin-bottom: 8px;
}

.notification-item p {
  color: #c0d8e8;
  line-height: 1.6;
}

/* 导航栏增加通知图标间距 */
.nav-links a i {
  margin-right: 5px;
}

/* 车次状态样式 */
tr.stopped {
  background-color: #3d1a1a;
  color: #ff6b6b;
}

tr.stopped .btn-booking {
  background: #6b3a3a;
  cursor: not-allowed;
  pointer-events: none;
}

tr.departed {
  background-color: #2a2a2a;
  color: #888;
}

tr.departed .btn-booking {
  display: none;
}

.departed-text,
.stopped-text {
  color: #ff6b6b;
  font-weight: bold;
}

.departed-text {
  color: #888;
}

/* 改签页面 */
.exchange-container {
  max-width: 600px;
  margin: 40px auto;
}

.exchange-actions {
  margin-top: 20px;
  display: flex;
  gap: 15px;
}

.btn-danger {
  background: #8a2a2a;
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 6px;
  cursor: pointer;
}

.btn-danger:hover {
  background: #aa3a3a;
}

.search-section,
.train-list table,
.order-form-container,
.success-container,
.query-container,
.result-container .order-card,
.payment-container,
.exchange-container,
.snezhnaya-intro,
.notification-item,
.countdown-box {
    background: rgba(17, 27, 46, 0.8);
    backdrop-filter: blur(4px);
    border: 1px solid rgba(42, 74, 106, 0.5);
    border-radius: 12px;
    padding: 20px 25px;
    margin-bottom: 25px;
}

/* 表格头额外半透明 */
thead {
    background: rgba(26, 42, 64, 0.7);
}

/* 下拉框、输入框等保持原有深色，但略微半透明 */
.field-group input,
.field-group select {
    background: rgba(12, 20, 36, 0.8);
    border: 1px solid rgba(42, 74, 106, 0.6);
    color: #e0f0ff;
}

/* 按钮保留原样（已是不透明） */
.btn-primary {
    background: linear-gradient(135deg, #1f6d8a, #0f4a6a);
    /* 不透明 */
}

/* 至冬国介绍文本框半透明 */
.snezhnaya-intro {
    background: rgba(26, 34, 56, 0.75);
}

/* 改签模态框背景半透明 */
#changeModal > div {
    background: rgba(26, 34, 56, 0.9) !important;
    backdrop-filter: blur(8px);
}

/* 容器 - 全局居中 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 主内容 - 居中 + 半透明 */
.main-content {
    max-width: 1200px;
    margin: 20px auto;
    padding: 30px 20px;
    background: rgba(11, 13, 23, 0.65);
    backdrop-filter: blur(4px);
    border-radius: 12px;
    min-height: 70vh;
    width: 100%;
    box-sizing: border-box;
}

/* 子块居中（可选） */
.train-list table,
.order-form-container,
.success-container,
.query-container,
.result-container .order-card,
.payment-container,
.exchange-container,
.snezhnaya-intro,
.notification-item {
    margin-left: auto;
    margin-right: auto;
    max-width: 100%;
}

/* ===== 详情页（表格版） ===== */
.detail-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    background: rgba(17, 27, 46, 0.8);
    backdrop-filter: blur(4px);
    border-radius: 16px;
    border: 1px solid rgba(42, 74, 106, 0.5);
}

.detail-header {
    margin-bottom: 20px;
    border-bottom: 1px solid rgba(42, 74, 106, 0.3);
    padding-bottom: 15px;
}

.detail-header h2 {
    color: #aad8ff;
    font-size: 1.8rem;
    margin-bottom: 8px;
}

.detail-header h2 i {
    color: #4dc3ff;
    margin-right: 12px;
}

.train-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    color: #b0cce0;
    font-size: 0.95rem;
}

.train-meta span i {
    margin-right: 6px;
    color: #4dc3ff;
}

.detail-table-wrapper {
    overflow-x: auto;
    margin-bottom: 20px;
}

.detail-table {
    width: 100%;
    border-collapse: collapse;
    background: rgba(10, 20, 40, 0.5);
    border-radius: 8px;
    overflow: hidden;
}

.detail-table thead {
    background: rgba(0, 40, 70, 0.7);
}

.detail-table th {
    padding: 12px 15px;
    color: #8ab4d6;
    font-weight: bold;
    text-align: left;
    border-bottom: 2px solid rgba(42, 74, 106, 0.4);
}

.detail-table td {
    padding: 12px 15px;
    border-bottom: 1px solid rgba(42, 74, 106, 0.15);
    color: #c0d8e8;
}

.detail-table tbody tr:hover {
    background: rgba(26, 42, 64, 0.4);
}

.detail-table .route-arrow {
    text-align: center;
    font-size: 1.2rem;
    color: #4dc3ff;
    width: 40px;
}

.detail-table .station-name {
    font-weight: 500;
}

.detail-table .station-platform {
    color: #8ab4d6;
}

.detail-table .station-arrival,
.detail-table .station-departure {
    font-family: monospace;
    font-size: 0.95rem;
}

/* 高亮行 */
.detail-table tbody tr.highlight-from {
    background: rgba(77, 195, 255, 0.2);
    border-left: 3px solid #4dc3ff;
}

.detail-table tbody tr.highlight-to {
    background: rgba(255, 107, 107, 0.2);
    border-left: 3px solid #ff6b6b;
}

.detail-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
}

/* ===== 提示条 ===== */
.notice-tip {
    padding: 12px 16px;
    margin-bottom: 20px;
    background: rgba(77, 195, 255, 0.08);
    border-left: 3px solid #4dc3ff;
    border-radius: 6px;
    color: #b0cce0;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.notice-tip i {
    color: #4dc3ff;
    font-size: 1.1rem;
}

/* ===== 运行图页面 ===== */
.diagram-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
}

.diagram-container h2 {
    color: #aad8ff;
    font-size: 2rem;
    margin-bottom: 5px;
}

.diagram-subtitle {
    color: #8ab4d6;
    margin-bottom: 30px;
    font-size: 1.1rem;
}

.diagram-section {
    margin-bottom: 40px;
    background: rgba(17, 27, 46, 0.8);
    backdrop-filter: blur(4px);
    border-radius: 16px;
    border: 1px solid rgba(42, 74, 106, 0.5);
    padding: 20px;
}

.diagram-section h3 {
    color: #b0cce0;
    margin-bottom: 15px;
    font-size: 1.3rem;
    border-bottom: 1px solid rgba(42, 74, 106, 0.3);
    padding-bottom: 10px;
}

.diagram-image {
    width: 100%;
    height: 670px;
    background-size: cover;
    background-position: center;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.diagram-placeholder {
    background: rgba(0, 0, 0, 0.6);
    padding: 30px 40px;
    border-radius: 12px;
    text-align: center;
    color: #e0f0ff;
}

.diagram-placeholder i {
    font-size: 3rem;
    color: #4dc3ff;
    display: block;
    margin-bottom: 10px;
}

.diagram-placeholder p {
    margin: 0;
    font-size: 1.1rem;
}