Initial commit

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

app/static/css/toast.css

@@ -0,0 +1,77 @@
+/* Toast 提示：对齐站点深色主题，仅成功 / 失败两种状态 */
+
+.site-toast {
+  position: fixed;
+  left: 50%;
+  top: 16px;
+  z-index: 400;
+  transform: translateX(-50%);
+  pointer-events: none;
+  max-width: min(92vw, 420px);
+}
+
+.site-toast[hidden] {
+  display: none;
+}
+
+.site-toast__panel {
+  display: inline-flex;
+  align-items: center;
+  gap: 10px;
+  min-height: 44px;
+  padding: 12px 18px;
+  border-radius: var(--radius-md);
+  border: 1px solid var(--line);
+  background: var(--bg);
+  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
+  color: var(--text);
+  opacity: 0;
+  transform: translateY(-8px);
+  transition: opacity 0.22s ease, transform 0.22s ease;
+}
+
+.site-toast.is-visible .site-toast__panel {
+  opacity: 1;
+  transform: translateY(0);
+}
+
+.site-toast__icon {
+  width: 18px;
+  height: 18px;
+  flex-shrink: 0;
+  display: none;
+}
+
+.site-toast__icon[hidden] {
+  display: none !important;
+}
+
+.site-toast.is-success .site-toast__icon[data-toast-icon-success]:not([hidden]),
+.site-toast.is-error .site-toast__icon[data-toast-icon-error]:not([hidden]) {
+  display: block;
+}
+
+.site-toast__text {
+  margin: 0;
+  font-size: 14px;
+  line-height: 1.45;
+  font-weight: 500;
+  word-break: break-word;
+}
+
+.site-toast.is-success .site-toast__panel {
+  border-color: rgba(233, 201, 119, 0.35);
+  background: var(--bg);
+}
+
+.site-toast.is-error .site-toast__panel {
+  border-color: rgba(255, 90, 95, 0.4);
+  background: var(--bg);
+}
+
+@media (max-width: 768px) {
+  .site-toast {
+    top: 16px;
+    bottom: auto;
+  }
+}