:root {
  --ink: #17201c;
  --muted: #647069;
  --line: #d9dedb;
  --paper: #f5f7f5;
  --white: #ffffff;
  --forest: #174f3a;
  --forest-dark: #103a2b;
  --mint: #dce9e2;
  --blue: #315f7d;
  --danger: #a44135;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { min-width: 320px; background: var(--paper); }
body { margin: 0; color: var(--ink); background: var(--paper); font: 14px/1.5 "Microsoft YaHei", "PingFang SC", Arial, sans-serif; letter-spacing: 0; }
button, input, select, textarea { font: inherit; letter-spacing: 0; }
button, select { cursor: pointer; }
button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 3px solid rgba(49, 95, 125, .25); outline-offset: 2px; }

.manage-header { height: 72px; padding: 10px 28px; display: flex; align-items: center; justify-content: space-between; gap: 20px; background: var(--white); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 10px; color: inherit; text-decoration: none; }
.brand img { width: 48px; height: 48px; object-fit: contain; }
.brand span { display: grid; }
.brand strong { font-size: 22px; }
.brand small { color: var(--muted); }
.user-actions { display: flex; align-items: center; gap: 10px; }
.user-actions > span { color: var(--muted); }

.button { min-height: 38px; padding: 0 13px; border: 1px solid transparent; border-radius: 6px; font-weight: 700; }
.button.primary { color: var(--white); background: var(--forest); }
.button.primary:hover { background: var(--forest-dark); }
.button.secondary { color: var(--ink); background: var(--white); border-color: var(--line); }
.button.secondary:hover { background: #eef2ef; }
.button.danger { color: var(--danger); background: var(--white); border-color: #dfc3bf; }
.button:disabled { cursor: not-allowed; opacity: .5; }

.login-view { min-height: calc(100vh - 72px); display: grid; place-items: center; padding: 28px; }
.login-form { width: min(380px, 100%); display: grid; gap: 16px; }
.login-form > img { width: 72px; height: 72px; object-fit: contain; }
.login-form h1 { margin: 0 0 8px; font-size: 28px; }
label { display: grid; gap: 6px; color: var(--muted); font-weight: 700; }
input, select, textarea { width: 100%; min-height: 40px; padding: 8px 10px; color: var(--ink); background: var(--white); border: 1px solid #cfd6d2; border-radius: 5px; }
textarea { min-height: 96px; resize: vertical; }
.login-form a { color: var(--blue); text-decoration: none; }
.form-error { min-height: 21px; margin: 0; color: var(--danger); }

.view-tabs { height: 50px; padding: 0 28px; display: flex; gap: 22px; background: var(--white); border-bottom: 1px solid var(--line); }
.view-tab { position: relative; padding: 0 4px; color: var(--muted); font-weight: 800; background: transparent; border: 0; }
.view-tab.active { color: var(--forest); }
.view-tab.active::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 3px; background: var(--forest); }
.materials-view { min-height: calc(100vh - 122px); display: grid; grid-template-columns: 300px minmax(0, 1fr); }
.material-sidebar { background: #eef1ef; border-right: 1px solid var(--line); }
.sidebar-tools { position: sticky; top: 0; z-index: 2; padding: 18px; background: #eef1ef; border-bottom: 1px solid var(--line); }
.segment { height: 38px; margin-top: 10px; display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--line); border-radius: 5px; overflow: hidden; }
.segment button { color: var(--muted); font-weight: 700; background: var(--white); border: 0; }
.segment button.active { color: var(--white); background: var(--forest); }
.material-list { max-height: calc(100vh - 236px); overflow: auto; }
.material-list button { width: 100%; min-height: 64px; padding: 10px 18px; display: grid; gap: 3px; text-align: left; background: transparent; border: 0; border-bottom: 1px solid #dde2df; }
.material-list button:hover { background: var(--white); }
.material-list button.active { background: var(--white); box-shadow: inset 4px 0 var(--forest); }
.material-list strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.material-list span { display: flex; justify-content: space-between; gap: 8px; color: var(--muted); font-size: 12px; }
.maintained { color: var(--forest); font-weight: 800; }

.material-editor { min-width: 0; }
.editor-empty { min-height: calc(100vh - 122px); display: grid; place-items: center; color: var(--muted); }
.editor-toolbar { min-height: 92px; padding: 18px 28px; display: flex; align-items: center; justify-content: space-between; gap: 20px; background: var(--white); border-bottom: 1px solid var(--line); }
.editor-toolbar h1 { margin: 2px 0; font-size: 23px; }
.editor-toolbar span { color: var(--blue); font-size: 12px; font-weight: 800; }
.editor-toolbar small { color: var(--muted); }
.form-section { padding: 24px 28px; border-bottom: 1px solid var(--line); }
.form-section h2 { margin: 0; font-size: 17px; }
.section-heading { margin-bottom: 16px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.field-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.field-grid .wide { grid-column: 1 / -1; }
.image-section { display: grid; grid-template-columns: 180px minmax(0, 1fr); gap: 22px; align-items: center; }
.image-preview { width: 180px; aspect-ratio: 4 / 3; overflow: hidden; background: #e5e9e6; border: 1px solid var(--line); border-radius: 6px; }
.image-preview img { width: 100%; height: 100%; object-fit: cover; }
.image-section > div:last-child { display: grid; justify-items: start; gap: 10px; }
.image-section input { padding: 6px; }
.image-section small { color: var(--muted); }
.repeat-list { display: grid; gap: 8px; }
.repeat-row { display: grid; grid-template-columns: minmax(160px, .7fr) minmax(220px, 1.3fr) 38px; gap: 8px; align-items: center; }
.icon-remove { width: 38px; height: 38px; color: var(--danger); font-size: 20px; background: var(--white); border: 1px solid #dfc3bf; border-radius: 5px; }
.supplier-list { display: grid; gap: 12px; }
.supplier-row { padding: 14px; display: grid; grid-template-columns: repeat(5, minmax(120px, 1fr)) 38px; gap: 10px; background: var(--white); border: 1px solid var(--line); border-radius: 6px; }
.supplier-row label { font-size: 12px; }

.users-view { min-height: calc(100vh - 122px); }
.users-inner { max-width: 1180px; margin: 0 auto; padding: 28px; }
.users-heading h1 { margin: 0; font-size: 25px; }
.users-heading p { margin: 4px 0 22px; color: var(--muted); }
.user-form { padding: 18px 0 24px; display: grid; grid-template-columns: 1fr 1.4fr .7fr 1fr auto; gap: 12px; align-items: end; border-bottom: 1px solid var(--line); }
.user-list { display: grid; }
.user-row { min-height: 66px; display: grid; grid-template-columns: 1.2fr 1.5fr .6fr .6fr auto; gap: 12px; align-items: center; border-bottom: 1px solid var(--line); }
.user-row small { color: var(--muted); }
.status-active { color: var(--forest); font-weight: 800; }
.status-inactive { color: var(--danger); font-weight: 800; }

dialog { width: min(460px, calc(100% - 32px)); padding: 0; border: 0; border-radius: 7px; box-shadow: 0 18px 55px rgba(23, 32, 28, .22); }
dialog::backdrop { background: rgba(16, 28, 22, .52); }
.dialog-form { position: relative; padding: 26px; display: grid; gap: 14px; }
.dialog-form h2 { margin: 0 0 6px; }
.dialog-close { position: absolute; top: 12px; right: 12px; width: 34px; height: 34px; font-size: 22px; background: transparent; border: 0; }
.toast { position: fixed; z-index: 20; right: 24px; bottom: 24px; max-width: 360px; padding: 12px 16px; color: var(--white); background: var(--forest-dark); border-radius: 6px; box-shadow: 0 12px 35px rgba(0, 0, 0, .18); }
.toast.error { background: var(--danger); }

@media (max-width: 1050px) {
  .field-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .supplier-row { grid-template-columns: repeat(3, minmax(120px, 1fr)); }
  .user-form { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .user-row { grid-template-columns: 1fr 1fr auto; padding: 10px 0; }
}

@media (max-width: 720px) {
  .manage-header { height: auto; padding: 10px 14px; align-items: flex-start; }
  .brand strong { font-size: 19px; }
  .user-actions { flex-wrap: wrap; justify-content: flex-end; }
  .user-actions > span { width: 100%; text-align: right; }
  .view-tabs { padding: 0 14px; }
  .materials-view { display: block; }
  .material-sidebar { border-right: 0; }
  .material-list { max-height: 260px; }
  .editor-toolbar { padding: 14px; align-items: flex-start; }
  .form-section { padding: 20px 14px; }
  .field-grid { grid-template-columns: 1fr; }
  .field-grid .wide { grid-column: auto; }
  .image-section { grid-template-columns: 120px minmax(0, 1fr); }
  .image-preview { width: 120px; }
  .repeat-row { grid-template-columns: 1fr 1fr 38px; }
  .supplier-row { grid-template-columns: 1fr 1fr; }
  .users-inner { padding: 18px 14px; }
  .user-form { grid-template-columns: 1fr; }
  .user-row { grid-template-columns: 1fr auto; }
}