/* 公共变量 */
:root {
    --bg-main: #f6f7f9;
    --bg-card: #ffffff;
    --bg-detail: #f0f1f3;
    --text-primary: #222;
    --text-secondary: #555;
    --accent: #555;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

/* 通用 body 样式（去掉 margin/max-width 的冲突部分） */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, Tahoma, sans-serif;
    background: var(--bg-main);
    padding: 0 16px;
    font-size: 16px;
    color: var(--text-primary);
}

/* 公共按钮 */
.btn-small {
    padding: 6px 12px;
    font-size: 14px;
    border-radius: 6px;
    background: var(--text-primary);
    color: white;
    border: none;
    cursor: pointer;
    box-shadow: var(--shadow);
    text-align: center;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

.btn-small:hover {
    background: #000;
}

/* 公共 Dialog 样式 */
.dialog-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.3);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.dialog-box {
    background: var(--bg-card);
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    width: 80%;
    max-width: 300px;
    text-align: center;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.dialog-buttons {
    margin-top: 16px;
    display: flex;
    justify-content: space-around;
}

/* A 页面独有样式 */
.search-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--bg-card);
    padding: 24px 0 12px;
    box-shadow: var(--shadow);
    z-index: 1000;
    min-width: 960px;
}

.search-bar-inner {
    text-align: center;
    max-width: 960px;
    margin: 0 auto;
    padding: 0 16px;
}

.search-bar-inner>* {
    display: inline-block;
    margin: 0 10px;
    vertical-align: middle;
}

select,
input[type="text"] {
    padding: 6px 12px;
    border-radius: 6px;
    border: 1px solid #ccc;
    background: var(--bg-detail);
    font-size: 16px;
    outline: none;
}

select:focus,
input[type="text"]:focus {
    border: 1px solid #ccc;
    box-shadow: none;
}

.card input[type="text"] {
    width: calc(100% - 38px);
}


.filter-checkbox-row {
    margin-top: 12px;
    text-align: center;
    margin-left: auto;
    margin-right: auto;
    padding: 0 16px;
}

.filter-checkbox-row label {
    display: inline-flex;
    align-items: center;
    margin: 0 12px;
    font-size: 14px;
    cursor: pointer;
    color: var(--text-secondary);
    user-select: none;
}

.search-bar-inner label {
    cursor: pointer;
    user-select: none;
}

.filter-checkbox-row input[type="checkbox"] {
    margin-right: 6px;
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.my-table {
    border-collapse: collapse;
    width: 80%;
    margin: 20px auto;
    font-family: Arial, sans-serif;
    table-layout: auto;
}

.my-table th,
.my-table td {
    border: 1px solid #ddd;
    padding: 8px;
    text-align: center;
    white-space: nowrap;
}

.my-table th {
    background-color: #f2f2f2;
    color: #333;
}

.my-table tr:nth-child(even) {
    background-color: #f9f9f9;
}

.my-table tr:hover {
    background-color: #e6f7ff;
}

.pagination {
    margin: 20px;
    justify-content: center;
    display: flex;
    gap: 8px;
    font-size: 14px;
    z-index: 100;
}

.pagination span {
    padding: 6px 12px;
    background: var(--bg-card);
    border: 1px solid #ccc;
    border-radius: 6px;
    cursor: pointer;
    color: var(--text-primary);
    user-select: none;
    box-shadow: var(--shadow);
    transition: background 0.2s, color 0.2s;
    margin: 0 5px;
}

.pagination span:hover {
    background: #ddd;
}

.pagination .active {
    background: var(--text-primary);
    color: white;
    pointer-events: none;
}

/* B 页面独有样式 */
h2 {
    text-align: center;
    font-size: 28px;
    margin-bottom: 24px;
}

a {
    color: var(--text-primary);
    text-decoration: none;
    padding: 2px;
    background-color: var(--bg-detail);
}

.filter-cdkey {
    margin-bottom: 20px;
    padding: 10px 14px;
    background: var(--bg-card);
    border-radius: 8px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.province {
    margin-bottom: 18px;
    background: var(--bg-card);
    border-radius: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.province-header {
    padding: 14px 16px;
    background: #dfe4ea;
    font-size: 20px;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    user-select: none;
}

.arrow {
    transition: transform 0.3s linear;
}

.arrow.open {
    transform: rotate(90deg);
}

.province-content,
.city-details {
    display: none;
}

.city-header {
    background: #ecf0f1;
    padding: 12px 16px;
    font-weight: bold;
    font-size: 18px;
    border-bottom: 1px solid #dcdde1;
    cursor: pointer;
    transition: background 0.3s;
}

.city-header:hover {
    background: #d0d5d8;
}

.city-details-inner {
    padding: 14px 16px;
}

.info-line {
    background: #ffffff;
    padding: 10px 14px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-bottom: 12px;
    display: flex;
    justify-content: space-between;
}

.download-line {
    align-items: center;
    gap: 8px;
}

.download-line span:first-child {
    flex: 2;
}

.download-line .price {
    flex: 1;
    text-align: center;
    color: var(--text-secondary);
}

.card {
    background: var(--bg-card);
    padding: 16px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}

.card-liner {
    margin: 8px 0;
}

.card-liner>* {
    margin: 8px;
}


.btn-option {
    display: inline-block;
    padding: 5px 16px;
    margin: 8px;
    background: var(--bg-detail);
    border-radius: 6px;
    cursor: pointer;
    user-select: none;
    border: 2px solid transparent;
    transition: border 0.3s;
    width: 2em;
    text-align: center;
}

.btn-option.selected {
    border: 2px solid var(--accent);
}

textarea {
    width: calc(100% - 38px);
    height: 300px;
    padding: 10px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    border: 1px solid #ccc;
    resize: none;
    margin: 10px 0;
    background: var(--bg-detail);
}

.button-group {
    display: flex;
    justify-content: space-between;
    margin-top: 10px;
}


.community {
    cursor: pointer;
}