chore: initial project import

web/admin/src/admin.css

@@ -0,0 +1,194 @@
+/* 管理端：左侧导航 + 内容区（M3 风格：选中项是胶囊，内容区是圆角卡片） */
+.shell {
+  display: grid;
+  grid-template-columns: 248px minmax(0, 1fr);
+  min-height: 100%;
+}
+
+.side {
+  position: sticky;
+  top: 0;
+  height: 100vh;
+  display: flex;
+  flex-direction: column;
+  gap: 4px;
+  padding: 16px 12px;
+  background: var(--app-card-inset);
+  overflow: auto;
+}
+
+.side .brand {
+  padding: 8px 14px 16px;
+  font-size: 18px;
+  font-weight: 700;
+  color: var(--app-ink);
+  display: block;
+}
+
+.side .brand:hover {
+  text-decoration: none;
+}
+
+.side .section {
+  padding: 16px 14px 4px;
+  font-size: 12px;
+  color: var(--app-ink-faint);
+}
+
+.side a.nav {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  height: 44px;
+  padding: 0 14px;
+  border-radius: var(--r-pill);
+  color: var(--app-ink);
+  font-weight: 500;
+}
+
+.side a.nav:hover {
+  text-decoration: none;
+  background: color-mix(in srgb, var(--app-ink), transparent calc((1 - var(--state-hover)) * 100%));
+}
+
+.side a.nav.active {
+  background: var(--app-accent-container);
+  color: var(--app-on-accent-container);
+}
+
+.side .spacer {
+  flex: 1;
+}
+
+.me {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  padding: 10px 12px;
+  border-radius: var(--r-card);
+  background: var(--app-card);
+}
+
+.avatar {
+  width: 32px;
+  height: 32px;
+  border-radius: 50%;
+  background: var(--app-accent);
+  color: var(--app-card);
+  display: grid;
+  place-items: center;
+  font-weight: 600;
+}
+
+.main {
+  padding: 24px 32px 64px;
+  min-width: 0;
+}
+
+.main > header {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  margin-bottom: 24px;
+  flex-wrap: wrap;
+}
+
+.main > header h1 {
+  font-size: 24px;
+  font-weight: 700;
+}
+
+.login {
+  min-height: 100%;
+  display: grid;
+  place-items: center;
+  padding: 24px;
+}
+
+.login .card {
+  width: min(400px, 100%);
+  padding: 32px;
+}
+
+.login h1 {
+  font-size: 28px;
+  font-weight: 800;
+  margin-bottom: 4px;
+}
+
+.kv {
+  display: grid;
+  grid-template-columns: 140px minmax(0, 1fr);
+  gap: 8px 16px;
+}
+
+.kv dt {
+  color: var(--app-ink-faint);
+}
+
+.kv dd {
+  margin: 0;
+  min-width: 0;
+  overflow-wrap: anywhere;
+}
+
+.tags {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 6px;
+}
+
+.form-grid {
+  display: grid;
+  gap: 16px;
+  grid-template-columns: repeat(2, minmax(0, 1fr));
+}
+
+.form-grid .wide {
+  grid-column: 1 / -1;
+}
+
+.switch {
+  display: inline-flex;
+  align-items: center;
+  gap: 10px;
+  cursor: pointer;
+}
+
+.switch input {
+  accent-color: var(--app-accent);
+  width: 18px;
+  height: 18px;
+}
+
+.test-status {
+  text-transform: none;
+}
+
+@media (max-width: 900px) {
+  .shell {
+    grid-template-columns: minmax(0, 1fr);
+  }
+
+  .side {
+    position: static;
+    height: auto;
+    flex-direction: row;
+    flex-wrap: wrap;
+    align-items: center;
+  }
+
+  .side .section,
+  .side .spacer,
+  .me .grow {
+    display: none;
+  }
+
+  .main {
+    padding: 16px;
+  }
+
+  .form-grid {
+    grid-template-columns: minmax(0, 1fr);
+  }
+}