[kimi] Add About/Info panel to Matrix UI (#755) (#831)

static/world/style.css

@@ -87,3 +87,198 @@ canvas {
 #connection-dot.connected {
     background: #00b450;
 }
+
+/* Info button */
+.info-button {
+    position: absolute;
+    top: 14px;
+    right: 36px;
+    width: 28px;
+    height: 28px;
+    padding: 0;
+    background: rgba(10, 10, 20, 0.7);
+    border: 1px solid rgba(218, 165, 32, 0.4);
+    border-radius: 50%;
+    color: #daa520;
+    cursor: pointer;
+    pointer-events: auto;
+    transition: all 0.2s ease;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+}
+
+.info-button:hover {
+    background: rgba(218, 165, 32, 0.15);
+    border-color: rgba(218, 165, 32, 0.7);
+    transform: scale(1.05);
+}
+
+.info-button svg {
+    width: 16px;
+    height: 16px;
+}
+
+/* About Panel */
+.about-panel {
+    position: fixed;
+    top: 0;
+    right: 0;
+    width: 100%;
+    height: 100%;
+    z-index: 100;
+    pointer-events: none;
+    visibility: hidden;
+    opacity: 0;
+    transition: opacity 0.3s ease, visibility 0.3s ease;
+}
+
+.about-panel.open {
+    pointer-events: auto;
+    visibility: visible;
+    opacity: 1;
+}
+
+.about-panel-content {
+    position: absolute;
+    top: 0;
+    right: 0;
+    width: 380px;
+    max-width: 90%;
+    height: 100%;
+    background: rgba(10, 10, 20, 0.97);
+    border-left: 1px solid rgba(218, 165, 32, 0.3);
+    padding: 60px 24px 24px 24px;
+    overflow-y: auto;
+    transform: translateX(100%);
+    transition: transform 0.3s ease;
+    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.5);
+}
+
+.about-panel.open .about-panel-content {
+    transform: translateX(0);
+}
+
+.about-close {
+    position: absolute;
+    top: 16px;
+    right: 16px;
+    width: 32px;
+    height: 32px;
+    padding: 0;
+    background: transparent;
+    border: 1px solid rgba(160, 160, 160, 0.3);
+    border-radius: 50%;
+    color: #aaa;
+    cursor: pointer;
+    transition: all 0.2s ease;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+}
+
+.about-close:hover {
+    background: rgba(255, 255, 255, 0.1);
+    border-color: rgba(218, 165, 32, 0.5);
+    color: #daa520;
+}
+
+.about-close svg {
+    width: 18px;
+    height: 18px;
+}
+
+.about-panel-content h2 {
+    font-size: 20px;
+    color: #daa520;
+    margin-bottom: 24px;
+    font-weight: 600;
+}
+
+.about-panel-content section {
+    margin-bottom: 24px;
+}
+
+.about-panel-content h3 {
+    font-size: 14px;
+    color: #e0e0e0;
+    margin-bottom: 10px;
+    font-weight: 600;
+}
+
+.about-panel-content p {
+    font-size: 13px;
+    line-height: 1.6;
+    color: #aaa;
+    margin-bottom: 10px;
+}
+
+.about-panel-content ul {
+    list-style: none;
+    padding: 0;
+    margin: 0;
+}
+
+.about-panel-content li {
+    font-size: 13px;
+    line-height: 1.6;
+    color: #aaa;
+    margin-bottom: 8px;
+    padding-left: 16px;
+    position: relative;
+}
+
+.about-panel-content li::before {
+    content: "•";
+    position: absolute;
+    left: 0;
+    color: #daa520;
+}
+
+.about-panel-content li strong {
+    color: #ccc;
+}
+
+.about-footer {
+    margin-top: 32px;
+    padding-top: 16px;
+    border-top: 1px solid rgba(160, 160, 160, 0.2);
+    font-size: 12px;
+    color: #666;
+    text-align: center;
+}
+
+.about-backdrop {
+    position: absolute;
+    top: 0;
+    left: 0;
+    width: 100%;
+    height: 100%;
+    background: rgba(0, 0, 0, 0.5);
+    opacity: 0;
+    transition: opacity 0.3s ease;
+}
+
+.about-panel.open .about-backdrop {
+    opacity: 1;
+}
+
+/* Mobile adjustments */
+@media (max-width: 480px) {
+    .about-panel-content {
+        width: 100%;
+        max-width: 100%;
+        padding: 56px 20px 20px 20px;
+    }
+    
+    .info-button {
+        right: 32px;
+        width: 26px;
+        height: 26px;
+    }
+    
+    .info-button svg {
+        width: 14px;
+        height: 14px;
+    }
+}