feat: 移动端布局重做（顶栏两行、安全区、月历紧凑、表单单列）

intern-log/src/views/CalendarView.vue

@@ -206,4 +206,11 @@ watch(focusDate, d => {
 
 .drawer-enter-active, .drawer-leave-active { transition: opacity 0.15s ease; }
 .drawer-enter-from, .drawer-leave-to { opacity: 0; }
+
+@media (max-width: 720px) {
+  .cal-cell { min-height: 60px; padding: 4px 5px; }
+  .cal-title { min-width: 76px; font-size: 13px; }
+  .cal-marks { gap: 3px; margin-top: 4px; height: 12px; }
+  .drawer { width: 100%; }
+}
 </style>

intern-log/src/views/LedgerView.vue

@@ -403,4 +403,10 @@ async function confirmDelete() {
 .ops { display: flex; gap: 4px; flex-wrap: wrap; }
 .empty { text-align: center; padding: 24px 0; }
 .vault-note { margin-top: 10px; font-size: 12px; text-align: right; }
+
+@media (max-width: 560px) {
+  .form-grid { grid-template-columns: 1fr; }
+  .field.span2 { grid-column: auto; }
+  .ledger-toolbar .w-filter { flex: 1; min-width: 0; width: auto; }
+}
 </style>

intern-log/src/views/TodayView.vue

@@ -41,4 +41,10 @@ function onDateInput(e: Event) {
 .date-title { font-size: 14px; font-weight: 600; min-width: 170px; text-align: center; }
 .date-title.is-today { color: var(--accent); }
 .w-date { width: 150px; }
+
+@media (max-width: 720px) {
+  .detail-toolbar { gap: 8px; }
+  .date-title { min-width: 0; flex: 1; text-align: left; }
+  .w-date { flex: 1; min-width: 120px; width: auto; }
+}
 </style>