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@@ -6,12 +6,13 @@
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<title>Pokemon Card Search</title>
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<style>
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:root {
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- --primary-color: #4F46E5; /* 靛蓝色 */
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+ --primary-color: #4F46E5;
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--primary-hover: #4338ca;
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--bg-color: #f3f4f6;
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--card-bg: #ffffff;
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--text-main: #1f2937;
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--text-sub: #6b7280;
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+ --border-color: #e5e7eb;
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}
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* { box-sizing: border-box; margin: 0; padding: 0; }
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@@ -38,19 +39,45 @@
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color: var(--text-main);
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margin-bottom: 0.5rem;
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}
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- header p { color: var(--text-sub); }
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- /* 搜索上传区域 */
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- .search-panel {
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+ /* --- Tab 切换样式 --- */
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+ .tabs {
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+ display: flex;
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+ justify-content: center;
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+ margin-bottom: 1.5rem;
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+ gap: 1rem;
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+ }
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+ .tab-btn {
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+ background: transparent;
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+ border: none;
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+ padding: 0.75rem 1.5rem;
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+ font-size: 1rem;
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+ font-weight: 600;
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+ color: var(--text-sub);
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+ cursor: pointer;
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+ border-bottom: 3px solid transparent;
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+ transition: all 0.3s;
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+ }
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+ .tab-btn.active {
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+ color: var(--primary-color);
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+ border-bottom-color: var(--primary-color);
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+ }
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+
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+ /* 搜索面板容器 */
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+ .search-panel-container {
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background: var(--card-bg);
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padding: 2rem;
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border-radius: 16px;
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box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
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max-width: 600px;
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- margin: 0 auto 3rem auto;
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- text-align: center;
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+ margin: 0 auto 2rem auto;
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+ min-height: 300px; /* 防止切换时高度跳动太大 */
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}
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+ .panel-content { display: none; }
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+ .panel-content.active { display: block; animation: fadeIn 0.3s; }
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+
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+ /* --- 图片上传区域样式 (保持不变) --- */
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.upload-zone {
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border: 2px dashed #d1d5db;
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border-radius: 12px;
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@@ -58,51 +85,52 @@
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margin-bottom: 1.5rem;
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cursor: pointer;
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transition: all 0.3s ease;
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- position: relative;
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+ text-align: center;
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background-color: #fff;
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}
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-
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- .upload-zone:hover {
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+ .upload-zone:hover, .upload-zone.drag-active {
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border-color: var(--primary-color);
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background-color: #f9fafb;
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}
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-
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- /* 拖拽激活时的样式 */
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- .upload-zone.drag-active {
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- border-color: var(--primary-color);
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- background-color: #eef2ff; /* 浅蓝色背景 */
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- transform: scale(1.02);
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- }
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-
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- #preview-container {
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- display: none;
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- margin-top: 1rem;
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- }
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-
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#preview-img {
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max-width: 100%;
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- max-height: 300px;
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+ max-height: 200px;
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border-radius: 8px;
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- box-shadow: 0 2px 4px rgba(0,0,0,0.1);
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+ margin-top: 1rem;
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+ display: none;
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+ box-shadow: 0 4px 6px rgba(0,0,0,0.1);
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}
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- input[type="file"] { display: none; }
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-
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- .upload-label {
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- display: block;
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- color: var(--text-sub);
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- font-weight: 500;
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- pointer-events: none;
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+ /* --- 文本搜索区域样式 (新增) --- */
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+ .text-search-group {
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+ display: flex;
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+ flex-direction: column;
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+ gap: 1rem;
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+ margin-bottom: 1.5rem;
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+ text-align: left;
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+ }
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+ .form-input {
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+ width: 100%;
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+ padding: 0.8rem 1rem;
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+ border: 1px solid var(--border-color);
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+ border-radius: 8px;
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+ font-size: 1rem;
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+ transition: border-color 0.2s;
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+ }
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+ .form-input:focus {
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+ outline: none;
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+ border-color: var(--primary-color);
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+ box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
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}
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+ /* --- 公共控件样式 --- */
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.controls {
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display: flex;
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justify-content: center;
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align-items: center;
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gap: 1rem;
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- margin-bottom: 1rem;
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+ margin-top: 1rem;
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}
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-
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.search-btn {
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background-color: var(--primary-color);
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color: white;
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@@ -116,25 +144,37 @@
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display: inline-flex;
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align-items: center;
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}
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-
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.search-btn:hover { background-color: var(--primary-hover); }
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.search-btn:disabled { background-color: #9ca3af; cursor: not-allowed; }
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- .top-n-input {
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+ .limit-input {
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padding: 0.75rem;
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- border: 1px solid #d1d5db;
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+ border: 1px solid var(--border-color);
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border-radius: 8px;
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width: 80px;
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text-align: center;
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}
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- /* 结果展示区域 */
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+ /* --- 结果统计栏 --- */
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+ .stats-bar {
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+ max-width: 1200px;
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+ margin: 0 auto 1rem auto;
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+ padding: 0.75rem 1.5rem;
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+ background-color: #e0e7ff;
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+ color: #3730a3;
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+ border-radius: 8px;
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+ font-weight: 500;
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+ display: none; /* 默认隐藏 */
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+ justify-content: space-between;
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+ align-items: center;
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+ }
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+
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+ /* --- 结果卡片样式 --- */
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.results-grid {
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display: grid;
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grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
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gap: 1.5rem;
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}
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-
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.result-card {
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background: var(--card-bg);
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border-radius: 12px;
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@@ -144,12 +184,10 @@
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display: flex;
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flex-direction: column;
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}
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-
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.result-card:hover {
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transform: translateY(-5px);
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box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
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}
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-
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.card-img-wrapper {
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width: 100%;
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height: 280px;
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@@ -158,16 +196,14 @@
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align-items: center;
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justify-content: center;
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overflow: hidden;
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+ position: relative;
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}
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-
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.card-img-wrapper img {
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width: 100%;
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height: 100%;
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object-fit: contain;
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}
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-
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.card-info { padding: 1rem; }
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-
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.card-title {
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font-size: 1.1rem;
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font-weight: bold;
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@@ -177,15 +213,18 @@
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overflow: hidden;
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text-overflow: ellipsis;
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}
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-
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.card-meta {
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font-size: 0.875rem;
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color: var(--text-sub);
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- margin-bottom: 0.75rem;
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display: flex;
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justify-content: space-between;
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+ margin-bottom: 0.5rem;
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}
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+ /* 相似度条 (仅在图片搜索时显示) */
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+ .similarity-wrapper { display: none; }
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+ .show-score .similarity-wrapper { display: block; }
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+
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.score-bar-bg {
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height: 6px;
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background-color: #e5e7eb;
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@@ -193,14 +232,12 @@
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overflow: hidden;
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margin-top: 0.5rem;
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}
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-
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.score-bar-fill {
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height: 100%;
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background-color: #10b981;
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width: 0%;
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transition: width 0.5s ease-out;
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}
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-
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.score-text {
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font-size: 0.75rem;
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color: var(--text-sub);
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@@ -208,6 +245,7 @@
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text-align: right;
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}
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+ /* Spinner */
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.spinner {
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border: 3px solid rgba(255,255,255,0.3);
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border-radius: 50%;
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@@ -218,213 +256,264 @@
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margin-right: 8px;
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display: none;
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}
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-
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- @keyframes spin {
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- 0% { transform: rotate(0deg); }
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- 100% { transform: rotate(360deg); }
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- }
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-
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- @media (max-width: 640px) {
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- header h1 { font-size: 1.8rem; }
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- .results-grid { grid-template-columns: 1fr 1fr; }
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- .card-img-wrapper { height: 200px; }
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- }
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+ @keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }
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+ @keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
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</style>
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</head>
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<body>
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<div class="container">
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<header>
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- <h1>🔍 Pokemon Card Search</h1>
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- <p>Upload a card image to find similar matches</p>
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+ <h1>Pokédex Search</h1>
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+ <p>探索宝可梦卡片数据库</p>
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</header>
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- <div class="search-panel">
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- <!-- 上传区域：增加 id 和 ondrop 处理 -->
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- <div class="upload-zone" id="dropZone">
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- <div id="upload-placeholder">
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- <svg xmlns="http://www.w3.org/2000/svg" width="48" height="48" viewBox="0 0 24 24" fill="none" stroke="#9ca3af" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
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- <rect x="3" y="3" width="18" height="18" rx="2" ry="2"></rect>
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- <circle cx="8.5" cy="8.5" r="1.5"></circle>
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- <polyline points="21 15 16 10 5 21"></polyline>
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- </svg>
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- <span class="upload-label">点击或拖拽上传图片</span>
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- </div>
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+ <!-- Tab 切换 -->
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+ <div class="tabs">
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+ <button class="tab-btn active" onclick="switchTab('img')">📷 以图搜图</button>
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+ <button class="tab-btn" onclick="switchTab('text')">🔤 名称搜索</button>
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+ </div>
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- <div id="preview-container">
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- <img id="preview-img" src="" alt="Input Preview">
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- <p style="margin-top:0.5rem; color:var(--text-sub); font-size:0.9rem;">点击可重新选择</p>
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+ <div class="search-panel-container">
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+
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+ <!-- 面板 1: 图片搜索 -->
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+ <div id="panel-img" class="panel-content active">
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+ <div class="upload-zone" id="dropZone">
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+ <div id="upload-placeholder">
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+ <svg xmlns="http://www.w3.org/2000/svg" width="48" height="48" viewBox="0 0 24 24" fill="none" stroke="#9ca3af" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
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+ <rect x="3" y="3" width="18" height="18" rx="2" ry="2"></rect>
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+ <circle cx="8.5" cy="8.5" r="1.5"></circle>
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+ <polyline points="21 15 16 10 5 21"></polyline>
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+ </svg>
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+ <span style="display:block; margin-top:0.5rem; color:#6b7280;">点击或拖拽上传图片</span>
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+ </div>
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+ <img id="preview-img" src="" alt="Preview">
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+ <input type="file" id="imgInput" accept="image/*" style="display:none">
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</div>
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- <!-- 隐藏的 input -->
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- <input type="file" id="imgInput" accept="image/*">
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+ <div class="controls">
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+ <label>显示数量:</label>
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+ <input type="number" id="imgTopN" class="limit-input" value="5" min="1" max="20">
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+ <button class="search-btn" onclick="searchImage()" id="btnImgSearch">
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+ <div class="spinner"></div> 搜索相似
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+ </button>
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+ </div>
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</div>
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- <div class="controls">
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- <div style="display:flex; align-items:center; gap:0.5rem;">
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- <label for="topN" style="font-weight:500; color:var(--text-sub)">Top Results:</label>
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- <input type="number" id="topN" class="top-n-input" value="5" min="1" max="20">
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+ <!-- 面板 2: 文本搜索 (新功能) -->
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+ <div id="panel-text" class="panel-content">
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+ <div class="text-search-group">
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+ <label for="cardNameInput" style="font-weight:600; color:var(--text-main)">卡片名称 (模糊匹配):</label>
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+ <input type="text" id="cardNameInput" class="form-input" placeholder="例如: Pikachu, Charizard...">
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+ </div>
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+
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+ <div class="controls">
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+ <label>最大返回:</label>
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+ <input type="number" id="textLimit" class="limit-input" value="20" min="1" max="100">
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+ <button class="search-btn" onclick="searchByMetadata()" id="btnTextSearch">
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+ <div class="spinner"></div> 查询数据
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+ </button>
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</div>
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- <button class="search-btn" onclick="searchImage()" id="searchBtn">
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- <div class="spinner" id="loadingSpinner"></div>
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- Search
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- </button>
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</div>
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+
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</div>
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+ <!-- 统计信息栏 -->
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+ <div id="statsBar" class="stats-bar">
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+ <span id="statsText"></span>
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+ </div>
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+
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+ <!-- 结果展示区域 -->
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<div id="resultsArea">
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- <h3 style="margin-bottom: 1rem; color: var(--text-sub); display:none;" id="resultTitle">Search Results</h3>
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<div class="results-grid" id="resultsGrid"></div>
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</div>
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</div>
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<script>
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- const imgInput = document.getElementById('imgInput');
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+ // --- Tab 切换逻辑 ---
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+ function switchTab(type) {
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+ document.querySelectorAll('.tab-btn').forEach(b => b.classList.remove('active'));
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+ document.querySelectorAll('.panel-content').forEach(p => p.classList.remove('active'));
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+
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+ if (type === 'img') {
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+ document.querySelector('.tab-btn:nth-child(1)').classList.add('active');
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+ document.getElementById('panel-img').classList.add('active');
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+ } else {
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+ document.querySelector('.tab-btn:nth-child(2)').classList.add('active');
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+ document.getElementById('panel-text').classList.add('active');
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+ document.getElementById('cardNameInput').focus();
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+ }
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+ // 切换时清空结果，避免混淆
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+ document.getElementById('resultsGrid').innerHTML = '';
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+ document.getElementById('statsBar').style.display = 'none';
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+ }
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+
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+ // --- 图片上传相关逻辑 (Drag & Drop) ---
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const dropZone = document.getElementById('dropZone');
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- const previewContainer = document.getElementById('preview-container');
|
|
|
+ const imgInput = document.getElementById('imgInput');
|
|
|
const previewImg = document.getElementById('preview-img');
|
|
|
const placeholder = document.getElementById('upload-placeholder');
|
|
|
|
|
|
- // --- 核心改动：处理拖拽事件 ---
|
|
|
-
|
|
|
- // 1. 阻止浏览器默认行为 (打开图片)
|
|
|
['dragenter', 'dragover', 'dragleave', 'drop'].forEach(eventName => {
|
|
|
- dropZone.addEventListener(eventName, preventDefaults, false);
|
|
|
+ dropZone.addEventListener(eventName, (e) => { e.preventDefault(); e.stopPropagation(); }, false);
|
|
|
});
|
|
|
|
|
|
- function preventDefaults(e) {
|
|
|
- e.preventDefault();
|
|
|
- e.stopPropagation();
|
|
|
- }
|
|
|
-
|
|
|
- // 2. 视觉反馈 (高亮)
|
|
|
['dragenter', 'dragover'].forEach(eventName => {
|
|
|
dropZone.addEventListener(eventName, () => dropZone.classList.add('drag-active'), false);
|
|
|
});
|
|
|
-
|
|
|
['dragleave', 'drop'].forEach(eventName => {
|
|
|
dropZone.addEventListener(eventName, () => dropZone.classList.remove('drag-active'), false);
|
|
|
});
|
|
|
|
|
|
- // 3. 处理文件放置 (Drop)
|
|
|
- dropZone.addEventListener('drop', handleDrop, false);
|
|
|
-
|
|
|
- function handleDrop(e) {
|
|
|
- const dt = e.dataTransfer;
|
|
|
- const files = dt.files;
|
|
|
-
|
|
|
- if (files && files.length > 0) {
|
|
|
- // 将拖入的文件赋值给 input 元素，方便后续搜索逻辑使用
|
|
|
+ dropZone.addEventListener('drop', (e) => {
|
|
|
+ const files = e.dataTransfer.files;
|
|
|
+ if (files.length) {
|
|
|
imgInput.files = files;
|
|
|
updatePreview(files[0]);
|
|
|
}
|
|
|
- }
|
|
|
+ });
|
|
|
|
|
|
- // 4. 处理点击上传 (Click)
|
|
|
dropZone.addEventListener('click', () => imgInput.click());
|
|
|
-
|
|
|
- // 5. 阻止 input 的点击事件冒泡 (防止触发 dropZone 的 click 导致死循环)
|
|
|
imgInput.addEventListener('click', (e) => e.stopPropagation());
|
|
|
+ imgInput.onchange = () => { if (imgInput.files[0]) updatePreview(imgInput.files[0]); };
|
|
|
|
|
|
- // 6. 监听 Input 变化 (点击选择文件后触发)
|
|
|
- imgInput.onchange = (e) => {
|
|
|
- if (imgInput.files && imgInput.files[0]) {
|
|
|
- updatePreview(imgInput.files[0]);
|
|
|
- }
|
|
|
- };
|
|
|
-
|
|
|
- // --- 统一的预览逻辑 ---
|
|
|
function updatePreview(file) {
|
|
|
- if (file) {
|
|
|
- placeholder.style.display = 'none';
|
|
|
- previewContainer.style.display = 'block';
|
|
|
- previewImg.src = URL.createObjectURL(file);
|
|
|
- }
|
|
|
+ placeholder.style.display = 'none';
|
|
|
+ previewImg.style.display = 'block';
|
|
|
+ previewImg.src = URL.createObjectURL(file);
|
|
|
}
|
|
|
|
|
|
- // --- 搜索逻辑 (保持不变) ---
|
|
|
+ // --- 功能 1: 图片搜索 (原有) ---
|
|
|
async function searchImage() {
|
|
|
- if (!imgInput.files[0]) {
|
|
|
- alert("请先选择一张图片！");
|
|
|
- return;
|
|
|
- }
|
|
|
-
|
|
|
- const btn = document.getElementById('searchBtn');
|
|
|
- const spinner = document.getElementById('loadingSpinner');
|
|
|
- const topN = document.getElementById('topN').value;
|
|
|
- const grid = document.getElementById('resultsGrid');
|
|
|
- const resultTitle = document.getElementById('resultTitle');
|
|
|
+ if (!imgInput.files[0]) return alert("请先上传图片！");
|
|
|
|
|
|
- btn.disabled = true;
|
|
|
- spinner.style.display = 'block';
|
|
|
- grid.innerHTML = '';
|
|
|
- resultTitle.style.display = 'none';
|
|
|
+ const btn = document.getElementById('btnImgSearch');
|
|
|
+ setLoading(btn, true);
|
|
|
|
|
|
try {
|
|
|
const formData = new FormData();
|
|
|
formData.append('file', imgInput.files[0]);
|
|
|
+ const topN = document.getElementById('imgTopN').value;
|
|
|
|
|
|
const res = await fetch(`/api/search/image?top_k=${topN}`, {
|
|
|
method: 'POST',
|
|
|
body: formData
|
|
|
});
|
|
|
|
|
|
- if (!res.ok) throw new Error("Server Error");
|
|
|
+ const data = await res.json();
|
|
|
+
|
|
|
+ // 图片搜索通常没有 total 统计，显示返回数量即可
|
|
|
+ showStats(`🔍 相似度匹配完成，显示前 ${data.results.length} 个结果`);
|
|
|
+ renderResults(data.results, true); // true 表示显示分数条
|
|
|
+
|
|
|
+ } catch (e) {
|
|
|
+ alert("搜索失败: " + e.message);
|
|
|
+ } finally {
|
|
|
+ setLoading(btn, false);
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ // --- 功能 2: 元数据搜索 (新增) ---
|
|
|
+ async function searchByMetadata() {
|
|
|
+ const name = document.getElementById('cardNameInput').value.trim();
|
|
|
+ const limit = document.getElementById('textLimit').value;
|
|
|
+ const btn = document.getElementById('btnTextSearch');
|
|
|
+
|
|
|
+ setLoading(btn, true);
|
|
|
+
|
|
|
+ try {
|
|
|
+ // 构建 URL Query Params
|
|
|
+ const params = new URLSearchParams({ limit: limit });
|
|
|
+ if (name) params.append('card_name', name);
|
|
|
+
|
|
|
+ // 注意：这里使用你提供的 POST 接口
|
|
|
+ const res = await fetch(`/api/search/state?${params.toString()}`, {
|
|
|
+ method: 'POST',
|
|
|
+ headers: { 'Accept': 'application/json' },
|
|
|
+ body: '' // POST 请求体为空
|
|
|
+ });
|
|
|
+
|
|
|
+ if (!res.ok) throw new Error("API Request Failed");
|
|
|
|
|
|
const data = await res.json();
|
|
|
- renderResults(data.results);
|
|
|
|
|
|
- } catch (error) {
|
|
|
- alert("搜索出错: " + error.message);
|
|
|
+ // 显示统计信息
|
|
|
+ if (data.total !== undefined) {
|
|
|
+ showStats(`📊 数据库中符合条件的共有 <b>${data.total}</b> 条，当前展示前 <b>${data.returned_count}</b> 条`);
|
|
|
+ }
|
|
|
+
|
|
|
+ // 渲染结果 (false 表示不显示分数条)
|
|
|
+ renderResults(data.data || [], false);
|
|
|
+
|
|
|
+ } catch (e) {
|
|
|
+ console.error(e);
|
|
|
+ alert("查询出错: " + e.message);
|
|
|
} finally {
|
|
|
- btn.disabled = false;
|
|
|
- spinner.style.display = 'none';
|
|
|
- resultTitle.style.display = 'block';
|
|
|
+ setLoading(btn, false);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
- function renderResults(items) {
|
|
|
+ // --- 通用渲染函数 ---
|
|
|
+ function renderResults(items, showScore) {
|
|
|
const grid = document.getElementById('resultsGrid');
|
|
|
+ grid.innerHTML = '';
|
|
|
|
|
|
if (!items || items.length === 0) {
|
|
|
- grid.innerHTML = '<p style="text-align:center; grid-column: 1/-1; color:#666;">未找到相似结果</p>';
|
|
|
+ grid.innerHTML = '<p style="grid-column:1/-1; text-align:center; color:#666; padding:2rem;">未找到相关数据</p>';
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
items.forEach((item, index) => {
|
|
|
- const percentage = (item.score * 100).toFixed(1);
|
|
|
+ // 处理相似度分数 (仅图片搜索有)
|
|
|
+ let scoreHtml = '';
|
|
|
+ if (showScore && item.score !== undefined) {
|
|
|
+ const pct = (item.score * 100).toFixed(1);
|
|
|
+ scoreHtml = `
|
|
|
+ <div class="similarity-wrapper">
|
|
|
+ <div class="score-bar-bg">
|
|
|
+ <div class="score-bar-fill" style="width: ${pct}%"></div>
|
|
|
+ </div>
|
|
|
+ <div class="score-text">相似度: ${pct}%</div>
|
|
|
+ </div>
|
|
|
+ `;
|
|
|
+ }
|
|
|
+
|
|
|
const cardNumDisplay = (item.card_num && item.card_num !== -1) ? `#${item.card_num}` : '';
|
|
|
|
|
|
- const cardHtml = `
|
|
|
- <div class="result-card" style="opacity: 0; animation: fadeIn 0.5s forwards ${index * 0.1}s">
|
|
|
+ const html = `
|
|
|
+ <div class="result-card" style="opacity:0; animation:fadeIn 0.5s forwards ${index * 0.05}s">
|
|
|
<div class="card-img-wrapper">
|
|
|
- <img src="${item.img_url}" alt="${item.card_name}" onerror="this.src='https://via.placeholder.com/200?text=Image+Not+Found'">
|
|
|
+ <img src="${item.img_url}" loading="lazy"
|
|
|
+ onerror="this.src='https://via.placeholder.com/200x280?text=No+Image'">
|
|
|
</div>
|
|
|
<div class="card-info">
|
|
|
<div class="card-title" title="${item.card_name}">${item.card_name}</div>
|
|
|
<div class="card-meta">
|
|
|
- <span>${item.lang.toUpperCase()}</span>
|
|
|
+ <span style="background:#eee; padding:2px 6px; border-radius:4px; font-size:12px;">${item.lang ? item.lang.toUpperCase() : 'UNK'}</span>
|
|
|
<span>${cardNumDisplay}</span>
|
|
|
</div>
|
|
|
- <div class="score-bar-bg">
|
|
|
- <div class="score-bar-fill" style="width: ${percentage}%"></div>
|
|
|
+ <div class="result-card-class ${showScore ? 'show-score' : ''}">
|
|
|
+ ${scoreHtml}
|
|
|
</div>
|
|
|
- <div class="score-text">Sim: ${percentage}%</div>
|
|
|
</div>
|
|
|
</div>
|
|
|
`;
|
|
|
- grid.insertAdjacentHTML('beforeend', cardHtml);
|
|
|
+ grid.insertAdjacentHTML('beforeend', html);
|
|
|
});
|
|
|
}
|
|
|
|
|
|
- const style = document.createElement('style');
|
|
|
- style.innerHTML = `
|
|
|
- @keyframes fadeIn {
|
|
|
- from { opacity: 0; transform: translateY(10px); }
|
|
|
- to { opacity: 1; transform: translateY(0); }
|
|
|
- }
|
|
|
- `;
|
|
|
- document.head.appendChild(style);
|
|
|
+ // --- 辅助 UI 函数 ---
|
|
|
+ function setLoading(btn, isLoading) {
|
|
|
+ btn.disabled = isLoading;
|
|
|
+ btn.querySelector('.spinner').style.display = isLoading ? 'inline-block' : 'none';
|
|
|
+ }
|
|
|
+
|
|
|
+ function showStats(htmlContent) {
|
|
|
+ const bar = document.getElementById('statsBar');
|
|
|
+ const text = document.getElementById('statsText');
|
|
|
+ bar.style.display = 'flex';
|
|
|
+ text.innerHTML = htmlContent;
|
|
|
+ }
|
|
|
</script>
|
|
|
</body>
|
|
|
</html>
|
AnlaAnla