.system-settings-content { padding-top: 28px; }
.system-top { display: flex; justify-content: space-between; gap: 24px; align-items: flex-start; margin-bottom: 28px; }
.system-top h1, .system-top p { margin: 0; }
.system-top h1 { font-size: 30px; }
.system-top p { margin-top: 8px; color: #4f5e59; font-weight: 800; }
.save-button, .shortcut-card button, .backup-card button {
  display: inline-flex;
  height: 44px;
  align-items: center;
  gap: 9px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fff;
  font-weight: 900;
}
.save-button { color: #fff; border-color: transparent; background: linear-gradient(135deg, var(--green-bright), var(--green)); }

.system-layout { display: grid; grid-template-columns: 260px minmax(0, 1fr) 390px; gap: 18px; align-items: start; }
.system-menu { display: grid; gap: 4px; padding: 14px; }
.system-menu a { display: flex; min-height: 42px; align-items: center; gap: 12px; padding: 0 14px; border-radius: 7px; color: #43524d; font-weight: 900; }
.system-menu a.active { color: var(--green); background: #eaf7f0; }
.system-main, .system-side { display: grid; gap: 18px; }
.system-card, .option-card, .system-info, .status-card, .shortcut-card, .backup-card { padding: 24px; }
.system-card h2, .option-card h2, .system-info h2, .status-card h2, .shortcut-card h2, .backup-card h2 { margin: 0 0 22px; font-size: 19px; }
.system-form { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 24px 54px; }
.system-form label { display: grid; gap: 10px; color: #3d4c47; font-weight: 900; }
.system-form input, .system-form textarea, .system-form select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fff;
  outline: 0;
}
.system-form input, .system-form select { height: 42px; padding: 0 14px; }
.system-form textarea { min-height: 92px; padding: 12px 14px; resize: vertical; line-height: 1.45; }
.maintenance { grid-column: 1 / -1; grid-template-columns: 1fr auto; align-items: center; max-width: 560px; }
.maintenance small { display: block; margin-top: 6px; color: var(--muted); font-weight: 700; }
.option-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px 56px; }
.option-grid label { display: grid; grid-template-columns: 42px 1fr auto; gap: 14px; align-items: center; }
.option-grid i { display: grid; width: 38px; height: 38px; place-items: center; border-radius: 9px; font-style: normal; }
.option-grid b { display: block; }
.option-grid small { display: block; margin-top: 5px; color: var(--muted); font-weight: 700; }
.option-grid input, .maintenance input { appearance: none; width: 44px; height: 24px; border-radius: 999px; background: #cad7d3; position: relative; flex: 0 0 auto; }
.option-grid input::after, .maintenance input::after { content: ""; position: absolute; top: 3px; left: 3px; width: 18px; height: 18px; border-radius: 50%; background: #fff; transition: .2s; box-shadow: 0 2px 8px rgba(0,0,0,.18); }
.option-grid input:checked, .maintenance input:checked { background: var(--green); }
.option-grid input:checked::after, .maintenance input:checked::after { transform: translateX(20px); }

.system-info p, .status-card p { display: flex; justify-content: space-between; gap: 18px; margin: 17px 0; color: #4f5e59; font-weight: 800; }
.system-info b, .status-card b { color: var(--ink); }
.system-info em, .status-card em { display: inline-flex; padding: 6px 10px; border-radius: 7px; color: var(--green); background: #eaf9f2; font-style: normal; font-weight: 900; }
.shortcut-card { display: grid; gap: 10px; }
.shortcut-card h2 { margin-bottom: 8px; }
.shortcut-card button { width: 100%; justify-content: space-between; height: 50px; }
.shortcut-card button span { color: #52625c; }
.backup-card { margin-top: 18px; }
.backup-card div { display: grid; grid-template-columns: 42px 1fr 1fr 2fr auto; gap: 18px; align-items: center; }
.backup-card p { margin: 0; }
.backup-card small { display: block; margin-top: 6px; color: var(--muted); font-weight: 700; }
.backup-card > div > span { display: grid; width: 38px; height: 38px; place-items: center; border-radius: 9px; color: #5c6670; background: #f2f5f5; }
.backup-card button { justify-content: center; color: var(--ink); }

@media (max-width: 1500px) { .system-layout { grid-template-columns: 230px 1fr; } .system-side { grid-column: 2; } }
@media (max-width: 1050px) { .system-layout, .system-form, .option-grid, .backup-card div { grid-template-columns: 1fr; } .system-side { grid-column: auto; } .maintenance { grid-template-columns: 1fr auto; } }
@media (max-width: 760px) { .system-top { flex-direction: column; } .save-button { width: 100%; justify-content: center; } }