/* 网络运维工具箱 - 商用控制台风格 */
:root {
    --sidebar-width: 232px;
    --sidebar-collapsed-width: 62px;
    --primary: #3b82f6;
    --primary-light: #60a5fa;
    --primary-dark: #2563eb;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #06b6d4;
    --dark: #ffffff;
    --darker: #f8fbff;
    --light: #f8fafc;
    --gray-50: #f8fbff;
    --gray-100: #f1f5fb;
    --gray-200: #e2e8f0;
    --gray-300: #d6deea;
    --gray-400: #8ca0b8;
    --gray-500: #64748b;
    --gray-600: #516173;
    --gray-700: #334155;
    --gray-800: #1f2a37;
    --gray-900: #0f172a;
    --radius: 18px;
    --radius-sm: 12px;
    --shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
    --shadow-lg: 0 24px 50px rgba(15, 23, 42, 0.12);
    --page-bg:
        radial-gradient(circle at top left, rgba(59, 130, 246, 0.10), transparent 28%),
        linear-gradient(180deg, #f8fbff 0%, #eef4fb 100%);
    --page-bg-solid: #eef4fb;
    --sidebar-bg: rgba(255, 255, 255, 0.92);
    --sidebar-border: rgba(148, 163, 184, 0.18);
    --sidebar-hover: rgba(59, 130, 246, 0.08);
    --sidebar-active: linear-gradient(135deg, rgba(59,130,246,0.14), rgba(96,165,250,0.12));
    --surface: rgba(255, 255, 255, 0.92);
    --surface-strong: #ffffff;
    --surface-muted: #f8fbff;
    --border-soft: rgba(148, 163, 184, 0.16);
    --overlay: rgba(15, 23, 42, 0.30);
    --code-bg: #0f172a;
    --code-text: #e2e8f0;
    --success-soft: rgba(16, 185, 129, 0.12);
    --warning-soft: rgba(245, 158, 11, 0.14);
    --danger-soft: rgba(239, 68, 68, 0.12);
    --info-soft: rgba(6, 182, 212, 0.12);
}

:root[data-theme="dark"] {
    --primary: #60a5fa;
    --primary-light: #93c5fd;
    --primary-dark: #3b82f6;
    --success: #34d399;
    --warning: #fbbf24;
    --danger: #f87171;
    --info: #22d3ee;
    --dark: #0f172a;
    --darker: #020617;
    --light: #111827;
    --gray-50: #0f172a;
    --gray-100: #111827;
    --gray-200: #1f2937;
    --gray-300: #334155;
    --gray-400: #64748b;
    --gray-500: #94a3b8;
    --gray-600: #cbd5e1;
    --gray-700: #e2e8f0;
    --gray-800: #f8fafc;
    --gray-900: #ffffff;
    --shadow: 0 14px 34px rgba(2, 6, 23, 0.38);
    --shadow-lg: 0 26px 70px rgba(2, 6, 23, 0.50);
    --page-bg:
        radial-gradient(circle at top left, rgba(59, 130, 246, 0.18), transparent 24%),
        linear-gradient(180deg, #020617 0%, #0f172a 100%);
    --page-bg-solid: #020617;
    --sidebar-bg: rgba(15, 23, 42, 0.92);
    --sidebar-border: rgba(71, 85, 105, 0.32);
    --sidebar-hover: rgba(96, 165, 250, 0.12);
    --sidebar-active: linear-gradient(135deg, rgba(59,130,246,0.26), rgba(96,165,250,0.18));
    --surface: rgba(15, 23, 42, 0.86);
    --surface-strong: #111827;
    --surface-muted: #0f172a;
    --border-soft: rgba(71, 85, 105, 0.34);
    --overlay: rgba(2, 6, 23, 0.58);
    --code-bg: #020617;
    --code-text: #cbd5e1;
    --success-soft: rgba(52, 211, 153, 0.16);
    --warning-soft: rgba(251, 191, 36, 0.18);
    --danger-soft: rgba(248, 113, 113, 0.18);
    --info-soft: rgba(34, 211, 238, 0.16);
}

* { box-sizing: border-box; }

body {
    /* 使用系统字体栈，移除 Inter 以提升加载速度 */
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', 'PingFang SC', 'Hiragino Sans GB', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--page-bg);
    color: var(--gray-800);
    margin: 0;
    min-height: 100vh;
}

/* 移动菜单按钮 */
.mobile-menu-toggle {
    position: fixed;
    top: 16px;
    left: 16px;
    width: 42px;
    height: 42px;
    border: 1px solid var(--border-soft);
    border-radius: 14px;
    background: var(--surface);
    color: var(--primary-dark);
    box-shadow: var(--shadow);
    z-index: 1090;
    display: none;
    align-items: center;
    justify-content: center;
}

.sidebar-overlay {
    position: fixed;
    inset: 0;
    background: var(--overlay);
    backdrop-filter: blur(2px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
    z-index: 998;
}

.sidebar-overlay.show {
    opacity: 1;
    pointer-events: auto;
}

/* ===== SIDEBAR – Vue3 Admin + 玻璃质感 ===== */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background:
        radial-gradient(circle at 18% 0%, rgba(59,130,246,0.16), transparent 34%),
        radial-gradient(circle at 90% 100%, rgba(6,182,212,0.10), transparent 40%),
        linear-gradient(180deg, rgba(255,255,255,0.94), rgba(244,249,255,0.90));
    backdrop-filter: blur(22px) saturate(150%);
    -webkit-backdrop-filter: blur(22px) saturate(150%);
    border-right: 1px solid rgba(148,163,184,0.20);
    box-shadow: 2px 0 18px rgba(15,23,42,0.07);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: width 0.25s cubic-bezier(.4,0,.2,1);
    z-index: 1000;
}

:root[data-theme="dark"] .sidebar {
    background:
        radial-gradient(circle at 18% 0%, rgba(96,165,250,0.20), transparent 36%),
        radial-gradient(circle at 90% 100%, rgba(34,211,238,0.10), transparent 42%),
        linear-gradient(180deg, rgba(17,24,42,0.95), rgba(2,6,23,0.94));
    border-right-color: rgba(96,165,250,0.16);
    box-shadow: 2px 0 22px rgba(0,0,0,0.34);
}

/* ── Brand Header ── */
.sidebar-header {
    height: 60px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 14px;
    border-bottom: 1px solid rgba(148,163,184,0.16);
    background: linear-gradient(135deg, rgba(59,130,246,0.08), rgba(6,182,212,0.05));
}

:root[data-theme="dark"] .sidebar-header {
    border-bottom-color: rgba(96,165,250,0.14);
    background: linear-gradient(135deg, rgba(96,165,250,0.12), rgba(34,211,238,0.06));
}

.sidebar-brand-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, #2563eb, #06b6d4);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    cursor: pointer;
    box-shadow: 0 6px 16px rgba(37,99,235,0.30);
}

.sidebar-brand-icon i { color: #fff; font-size: 18px; }

.sidebar-brand-copy { flex: 1; overflow: hidden; min-width: 0; }

.sidebar-brand-title {
    display: block;
    font-size: 14px;
    font-weight: 700;
    color: #1e293b;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.3;
}

:root[data-theme="dark"] .sidebar-brand-title { color: #e2e8f0; }

.sidebar-brand-subtitle { display: none; }

.sidebar-version {
    display: inline-block;
    margin-top: 2px;
    padding: 1px 8px;
    font-size: 10px;
    font-weight: 700;
    color: #2563eb;
    background: rgba(59,130,246,0.12);
    border: 1px solid rgba(59,130,246,0.18);
    border-radius: 999px;
    letter-spacing: 0.03em;
    line-height: 1.5;
}

:root[data-theme="dark"] .sidebar-version {
    color: #93c5fd;
    background: rgba(96,165,250,0.16);
    border-color: rgba(96,165,250,0.24);
}

.sidebar-toggle {
    width: 28px; height: 28px;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    background: transparent;
    color: #64748b;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
    transition: all 0.18s;
    padding: 0;
}

:root[data-theme="dark"] .sidebar-toggle { border-color: rgba(255,255,255,0.12); color: #94a3b8; }

.sidebar-toggle:hover { background: #eff6ff; color: #2563eb; border-color: #bfdbfe; }

:root[data-theme="dark"] .sidebar-toggle:hover { background: rgba(59,130,246,0.12); color: #60a5fa; }

.sidebar-toggle i { font-size: 13px; transition: transform 0.25s; }

/* ── Scroll Area ── */
.sidebar-scroll {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 4px 0 14px;
    scrollbar-width: thin;
    scrollbar-color: rgba(148,163,184,0.28) transparent;
}
.sidebar-scroll::-webkit-scrollbar { width: 4px; }
.sidebar-scroll::-webkit-scrollbar-track { background: transparent; }
.sidebar-scroll::-webkit-scrollbar-thumb { background: rgba(148,163,184,0.32); border-radius: 999px; }
.sidebar-scroll::-webkit-scrollbar-thumb:hover { background: rgba(148,163,184,0.55); }

/* ── Menu List ── */
.sidebar-menu { padding: 0; margin: 0; list-style: none; }

/* ── Section Label（Vue3 风格，纯文字分隔，不可点击）── */
.nav-section-label {
    display: block;
    padding: 14px 16px 4px;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.09em;
    text-transform: uppercase;
    color: #b0bac9;
    white-space: nowrap;
    overflow: hidden;
    user-select: none;
    pointer-events: none;
    line-height: 1;
}
:root[data-theme="dark"] .nav-section-label { color: #3d4a5c; }

/* ── Nav Items ── */
.sidebar-menu .nav-item { display: block; }

.sidebar-menu .nav-link {
    position: relative;
    display: flex;
    align-items: center;
    gap: 9px;
    height: 34px;
    padding: 0 12px;
    color: #4b5563;
    font-size: 13px;
    font-weight: 500;
    text-decoration: none;
    border-radius: 0 18px 18px 0;
    margin: 0 10px 0 0;
    width: calc(100% - 10px);
    white-space: nowrap;
    overflow: hidden;
    transition: background 0.15s, color 0.15s;
    cursor: pointer;
    border: none;
    background: transparent;
}
:root[data-theme="dark"] .sidebar-menu .nav-link { color: #8892a4; }

.sidebar-menu .nav-link i {
    flex-shrink: 0;
    width: 26px; height: 26px;
    border-radius: 7px;
    font-size: 15px;
    display: flex; align-items: center; justify-content: center;
    color: #6b7c93;
    background: rgba(148,163,184,0.10);
    transition: color 0.15s, background 0.15s, box-shadow 0.15s;
}
:root[data-theme="dark"] .sidebar-menu .nav-link i { color: #8492a8; background: rgba(148,163,184,0.08); }

.sidebar-menu .nav-link .sidebar-text { overflow: hidden; text-overflow: ellipsis; }

.sidebar-menu .nav-link:hover {
    color: #1d4ed8;
    background: linear-gradient(135deg, rgba(59,130,246,0.10), rgba(6,182,212,0.07));
}
:root[data-theme="dark"] .sidebar-menu .nav-link:hover {
    color: #93c5fd;
    background: linear-gradient(135deg, rgba(96,165,250,0.14), rgba(34,211,238,0.08));
}
.sidebar-menu .nav-link:hover i { color: #2563eb; background: rgba(59,130,246,0.14); }
:root[data-theme="dark"] .sidebar-menu .nav-link:hover i { color: #60a5fa; background: rgba(96,165,250,0.16); }

.sidebar-menu .nav-link.active {
    color: #0f172a;
    font-weight: 600;
    background: linear-gradient(135deg, rgba(59,130,246,0.18), rgba(6,182,212,0.11));
    box-shadow: inset 0 0 0 1px rgba(59,130,246,0.16);
}
:root[data-theme="dark"] .sidebar-menu .nav-link.active {
    color: #e2e8f0;
    background: linear-gradient(135deg, rgba(96,165,250,0.24), rgba(34,211,238,0.12));
    box-shadow: inset 0 0 0 1px rgba(96,165,250,0.20);
}
.sidebar-menu .nav-link.active i {
    color: #fff;
    background: linear-gradient(135deg, #2563eb, #06b6d4);
    box-shadow: 0 6px 14px rgba(37,99,235,0.30);
}
:root[data-theme="dark"] .sidebar-menu .nav-link.active i {
    color: #fff;
    background: linear-gradient(135deg, #3b82f6, #22d3ee);
}

.sidebar-menu .nav-link.active::before {
    content: '';
    position: absolute;
    left: 0; top: 50%;
    transform: translateY(-50%);
    width: 3px; height: 18px;
    border-radius: 0 3px 3px 0;
    background: linear-gradient(180deg, #2563eb, #06b6d4);
}

/* ── Divider ── */
.nav-divider { height: 1px; background: linear-gradient(90deg, transparent, rgba(148,163,184,0.30), transparent); margin: 6px 14px; flex-shrink: 0; }
:root[data-theme="dark"] .nav-divider { background: linear-gradient(90deg, transparent, rgba(148,163,184,0.18), transparent); }

/* ── theme-toggle ── */
.theme-toggle {
    width: calc(100% - 10px);
    border: none; background: transparent;
    cursor: pointer; font-size: 13.5px; font-weight: 500; text-align: left;
}

/* ── Collapsed State ── */
.sidebar.collapsed { width: var(--sidebar-collapsed-width); }
.sidebar.collapsed .sidebar-text,
.sidebar.collapsed .sidebar-brand-copy { display: none; }
.sidebar.collapsed .sidebar-header { justify-content: center; padding: 0 14px; gap: 0; }
.sidebar.collapsed .sidebar-toggle { display: none; }
.sidebar.collapsed .nav-section-label { display: none; }
.sidebar.collapsed .sidebar-menu .nav-link {
    justify-content: center; padding: 0;
    margin: 2px 8px; width: calc(100% - 16px);
    border-radius: 9px; height: 38px; gap: 0;
}
.sidebar.collapsed .sidebar-menu .nav-link i { width: 32px; height: 32px; font-size: 16px; border-radius: 8px; }
.sidebar.collapsed .sidebar-menu .nav-link.active::before { display: none; }
.sidebar.collapsed .nav-divider { margin: 6px 10px; }

/* ── Main Content ── */
.main-content {
    margin-left: var(--sidebar-width);
    padding: 28px 28px 32px;
    min-height: 100vh;
    background: transparent;
    transition: margin-left 0.25s cubic-bezier(.4,0,.2,1);
}
.sidebar.collapsed + .main-content { margin-left: var(--sidebar-collapsed-width); }

/* 页面头部 */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 22px;
    padding: 18px 20px;
    border: 1px solid rgba(148, 163, 184, 0.18);
    border-radius: 22px;
    background:
        radial-gradient(circle at top left, rgba(59,130,246,0.12), transparent 32%),
        linear-gradient(135deg, rgba(255,255,255,0.92), rgba(248,251,255,0.82));
    box-shadow: 0 16px 38px rgba(15,23,42,0.07);
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(59,130,246,0.36), transparent);
}

:root[data-theme="dark"] .page-header {
    background:
        radial-gradient(circle at top left, rgba(96,165,250,0.14), transparent 34%),
        linear-gradient(135deg, rgba(15,23,42,0.88), rgba(2,6,23,0.68));
    border-color: rgba(96,165,250,0.16);
    box-shadow: 0 18px 46px rgba(2,6,23,0.36);
}

.page-header h2 {
    margin: 0;
    font-size: 22px;
    font-weight: 800;
    color: var(--gray-900);
    display: flex;
    align-items: center;
    gap: 10px;
    letter-spacing: -0.5px;
}

.page-header h2 i {
    width: 38px;
    height: 38px;
    border-radius: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    background: linear-gradient(135deg, #2563eb, #06b6d4);
    box-shadow: 0 10px 24px rgba(37, 99, 235, 0.26);
}

/* 现代卡片 */
.card {
    background:
        linear-gradient(180deg, rgba(255,255,255,0.92), rgba(255,255,255,0.82)),
        var(--surface);
    border: 1px solid rgba(148, 163, 184, 0.16);
    border-radius: 20px;
    box-shadow: 0 14px 34px rgba(15,23,42,0.06);
    overflow: hidden;
    position: relative;
    transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 18px;
    right: 18px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(59,130,246,0.24), transparent);
    pointer-events: none;
}

.card:hover {
    border-color: rgba(59,130,246,0.22);
    box-shadow: 0 18px 42px rgba(15,23,42,0.09);
}

:root[data-theme="dark"] .card {
    background:
        linear-gradient(180deg, rgba(15,23,42,0.88), rgba(15,23,42,0.76)),
        var(--surface);
    border-color: rgba(96,165,250,0.14);
    box-shadow: 0 16px 42px rgba(2,6,23,0.34);
}

.card-header {
    background:
        linear-gradient(135deg, rgba(59,130,246,0.06), rgba(6,182,212,0.04)),
        rgba(255,255,255,0.42);
    border-bottom: 1px solid rgba(148, 163, 184, 0.14);
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h5 {
    margin: 0;
    font-size: 15px;
    font-weight: 750;
    color: var(--gray-900);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.card-header h5 i {
    color: var(--primary);
}

.card-body {
    padding: 20px;
}

/* 统计卡片 - 渐变风格 */
.stat-card {
    background:
        radial-gradient(circle at top right, rgba(59,130,246,0.10), transparent 36%),
        var(--surface);
    border: 1px solid rgba(148, 163, 184, 0.16);
    border-radius: 20px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: 0 14px 34px rgba(15,23,42,0.06);
    transition: transform 0.2s, box-shadow 0.2s;
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 48px rgba(15,23,42,0.11);
    border-color: rgba(59,130,246,0.24);
}

.stat-icon {
    width: 52px;
    height: 52px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: #fff;
    box-shadow: 0 12px 26px rgba(15,23,42,0.14);
}

.stat-icon.primary { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); }
.stat-icon.success { background: linear-gradient(135deg, var(--success), #059669); }
.stat-icon.warning { background: linear-gradient(135deg, var(--warning), #d97706); }
.stat-icon.danger { background: linear-gradient(135deg, var(--danger), #dc2626); }
.stat-icon.info { background: linear-gradient(135deg, var(--info), #0891b2); }

.stat-info h3 {
    margin: 0;
    font-size: 26px;
    font-weight: 700;
    color: var(--gray-800);
    letter-spacing: -0.5px;
}

.stat-info p {
    margin: 4px 0 0;
    color: var(--gray-500);
    font-size: 13px;
    font-weight: 500;
}

/* 迷你统计卡片 */
.stat-mini {
    padding: 20px;
    border-radius: var(--radius);
    color: #fff;
    text-align: center;
    transition: transform 0.2s;
}

.stat-mini:hover { transform: translateY(-2px); }
.stat-mini span { display: block; font-size: 32px; font-weight: 700; }
.stat-mini small { opacity: 0.9; font-size: 13px; font-weight: 500; }

.bg-gradient-primary { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); }
.bg-gradient-success { background: linear-gradient(135deg, var(--success), #059669); }
.bg-gradient-warning { background: linear-gradient(135deg, var(--warning), #d97706); }
.bg-gradient-danger { background: linear-gradient(135deg, var(--danger), #dc2626); }
.bg-gradient-info { background: linear-gradient(135deg, var(--info), #0891b2); }

/* 按钮 */
.btn {
    font-weight: 650;
    border-radius: 12px;
    padding: 8px 16px;
    font-size: 14px;
    transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, border-color 0.18s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border: none;
    box-shadow: 0 10px 22px rgba(37, 99, 235, 0.24);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    transform: translateY(-1px);
    box-shadow: 0 14px 30px rgba(37, 99, 235, 0.30);
}

.btn-success {
    background: linear-gradient(135deg, var(--success), #059669);
    border: none;
}

.btn-outline-primary {
    color: var(--primary);
    border-color: rgba(59,130,246,0.28);
    background: rgba(59,130,246,0.06);
}

.btn-outline-primary:hover {
    background: var(--primary);
    border-color: var(--primary);
}

.btn-outline-secondary {
    color: var(--gray-700);
    border-color: rgba(148,163,184,0.28);
    background: rgba(148,163,184,0.06);
}

.btn-outline-secondary:hover {
    background: var(--surface-muted);
    color: var(--gray-900);
    border-color: var(--gray-400);
}

.btn-outline-danger {
    color: var(--danger);
    border-color: rgba(239, 68, 68, 0.28);
}

.btn-outline-danger:hover {
    background: var(--danger);
    color: #fff;
    border-color: var(--danger);
}

.btn-outline-info {
    color: var(--info);
    border-color: rgba(6, 182, 212, 0.28);
}

.btn-outline-info:hover {
    background: var(--info);
    color: #fff;
    border-color: var(--info);
}

/* 表单 */
.form-control,
.form-select,
.input-group-text,
.form-control-plaintext {
    border-radius: 12px;
    border: 1px solid rgba(148, 163, 184, 0.22);
    padding: 10px 14px;
    font-size: 14px;
    transition: border-color 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
    background: rgba(255,255,255,0.72);
    color: var(--gray-800);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.58);
}

.form-control::placeholder,
textarea.form-control::placeholder {
    color: var(--gray-500);
    opacity: 1;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.10);
    background: var(--surface-strong);
    color: var(--gray-800);
}

.form-select option {
    background: var(--surface-strong);
    color: var(--gray-800);
}

.form-control:disabled,
.form-control[readonly],
.form-select:disabled,
.input-group-text,
.form-control-plaintext {
    background: var(--surface-muted);
    color: var(--gray-700);
    border-color: var(--border-soft);
    opacity: 1;
}

.form-control:-webkit-autofill,
.form-control:-webkit-autofill:hover,
.form-control:-webkit-autofill:focus,
.form-select:-webkit-autofill,
.form-select:-webkit-autofill:hover,
.form-select:-webkit-autofill:focus {
    -webkit-text-fill-color: var(--gray-800);
    box-shadow: 0 0 0 1000px var(--surface-strong) inset;
    transition: background-color 5000s ease-in-out 0s;
    caret-color: var(--gray-800);
}

.form-check-input {
    background-color: var(--surface-strong);
    border-color: var(--border-soft);
}

.form-check-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.form-check-input:checked {
    background-color: var(--primary);
    border-color: var(--primary);
}

.form-label {
    font-weight: 500;
    color: var(--gray-700);
    font-size: 13px;
    margin-bottom: 6px;
}

.dropdown-menu {
    background: var(--surface-strong);
    border: 1px solid var(--border-soft);
    box-shadow: var(--shadow);
    border-radius: var(--radius-sm);
}

.dropdown-item {
    color: var(--gray-700);
}

.dropdown-item:hover,
.dropdown-item:focus {
    background: var(--surface-muted);
    color: var(--gray-900);
}

.dropdown-divider {
    border-color: var(--border-soft);
}

.alert {
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-soft);
}

.alert-info {
    background: var(--info-soft);
    color: var(--gray-800);
    border-color: rgba(6, 182, 212, 0.18);
}

.alert-warning {
    background: var(--warning-soft);
    color: var(--gray-800);
    border-color: rgba(245, 158, 11, 0.2);
}

.alert-danger {
    background: var(--danger-soft);
    color: var(--gray-800);
    border-color: rgba(239, 68, 68, 0.2);
}

.alert-success {
    background: var(--success-soft);
    color: var(--gray-800);
    border-color: rgba(16, 185, 129, 0.2);
}

.alert-link {
    color: var(--primary-dark);
}

.list-group-item {
    background: var(--surface-strong);
    color: var(--gray-700);
    border-color: var(--border-soft);
}

code,
.font-monospace {
    color: var(--gray-700);
}

/* 表格 */
.table {
    font-size: 14px;
    margin-bottom: 0;
    color: var(--gray-800);
}

.table th {
    font-weight: 750;
    color: var(--gray-700);
    background:
        linear-gradient(180deg, rgba(59,130,246,0.06), rgba(148,163,184,0.05)),
        var(--gray-50);
    border-bottom: 1px solid rgba(148, 163, 184, 0.18);
    padding: 12px 16px;
    font-size: 13px;
    text-transform: none;
    letter-spacing: 0.5px;
}

.table td {
    padding: 14px 16px;
    vertical-align: middle;
    border-bottom: 1px solid rgba(148, 163, 184, 0.10);
    color: var(--gray-700);
}

.table tbody tr:hover {
    background: rgba(59, 130, 246, 0.045);
}

/* 徽章 */
.badge {
    font-weight: 650;
    padding: 5px 10px;
    border-radius: 999px;
    font-size: 12px;
}

/* 设备列表 */
.device-list {
    max-height: 400px;
    overflow-y: auto;
}

.device-item {
    padding: 12px 14px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.10);
    display: flex;
    align-items: center;
    transition: background 0.15s, transform 0.15s;
}

.device-item:last-child { border-bottom: none; }
.device-item:hover {
    background: rgba(59, 130, 246, 0.06);
    transform: translateX(2px);
}

.device-item .form-check-input {
    margin-right: 12px;
    width: 18px;
    height: 18px;
}

/* 配置查看 */
.config-view {
    background: var(--code-bg);
    color: var(--code-text);
    padding: 20px;
    border-radius: var(--radius-sm);
    max-height: 500px;
    overflow: auto;
    font-family: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
    font-size: 13px;
    line-height: 1.6;
}

/* 输出结果 */
.output-pre {
    background: var(--code-bg);
    color: var(--code-text);
    padding: 16px;
    border-radius: var(--radius-sm);
    max-height: 400px;
    overflow: auto;
    font-family: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
    font-size: 13px;
    border: 1px solid var(--border-soft);
}

/* 模态框 */
.modal-content {
    border: 1px solid var(--border-soft);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    background: var(--surface-strong);
}

.modal-header {
    border-bottom: 1px solid var(--gray-200);
    padding: 16px 20px;
}

.modal-title {
    font-weight: 600;
    font-size: 16px;
}

.modal-body { padding: 20px; }
.modal-footer { border-top: 1px solid var(--gray-200); padding: 16px 20px; }

/* 进度条 */
.progress {
    height: 8px;
    border-radius: 4px;
    background: var(--gray-200);
}

.text-muted,
small,
.small {
    color: var(--gray-500) !important;
}

.progress-bar {
    background: linear-gradient(90deg, var(--primary), var(--info));
    border-radius: 4px;
}

/* Toast 提示 */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
}

/* 滚动条 */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-400);
}

/* 动画 */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.3s ease;
}

/* ═══════════════════════════════════════════════════════════════
   响应式断点
   ─ lg : > 1024px   侧栏展开（232px）
   ─ md : 769–1024px 侧栏自动折叠（62px，图标模式）
   ─ sm : ≤ 768px    侧栏抽屉（滑入/滑出）
═══════════════════════════════════════════════════════════════ */

/* ── 平板/中等屏：侧栏自动折为图标模式 ── */
@media (min-width: 769px) and (max-width: 1024px) {
    .sidebar { width: var(--sidebar-collapsed-width); }
    .sidebar .sidebar-text,
    .sidebar .sidebar-brand-copy { display: none; }
    .sidebar .sidebar-header { justify-content: center; padding: 0 14px; gap: 0; }
    .sidebar .sidebar-toggle { display: none; }
    .sidebar .nav-section-label { display: none; }
    .sidebar .sidebar-menu .nav-link {
        justify-content: center; padding: 0;
        margin: 2px 8px; width: calc(100% - 16px);
        border-radius: 9px; height: 38px; gap: 0;
    }
    .sidebar .sidebar-menu .nav-link i { width: 32px; height: 32px; font-size: 16px; border-radius: 8px; }
    .sidebar .sidebar-menu .nav-link.active::before { display: none; }

    .main-content,
    .sidebar.collapsed + .main-content {
        margin-left: var(--sidebar-collapsed-width);
        padding: 20px 20px 28px;
    }
}

/* ── 手机/小屏：侧栏变抽屉 ── */
@media (max-width: 768px) {
    .mobile-menu-toggle { display: inline-flex; }

    .sidebar {
        left: 0; top: 0;
        height: 100vh;
        border-radius: 0;
        transform: translateX(-100%);
        width: min(268px, 82vw);
        box-shadow: 4px 0 24px rgba(0,0,0,0.18);
        transition: transform 0.28s cubic-bezier(.4,0,.2,1);
    }

    /* 抽屉展开时所有文字都显示 */
    .sidebar .sidebar-text,
    .sidebar .sidebar-brand-copy { display: initial; }
    .sidebar .sidebar-toggle { display: flex; margin-left: auto; }
    .sidebar .nav-section-label { display: block; }
    .sidebar .sidebar-menu .nav-link {
        justify-content: flex-start;
        padding: 0 12px;
        margin: 1px 10px 1px 0;
        width: calc(100% - 10px);
        border-radius: 0 20px 20px 0;
        height: 36px; gap: 9px;
    }
    .sidebar .sidebar-menu .nav-link i {
        width: 28px; height: 28px; font-size: 15px; border-radius: 7px;
    }
    .sidebar .sidebar-menu .nav-link.active::before { display: block; }

    .sidebar.mobile-open { transform: translateX(0); }

    /* 折叠态在手机上等同于抽屉关闭 */
    .sidebar.collapsed { width: min(268px, 82vw); transform: translateX(-100%); }
    .sidebar.collapsed.mobile-open { transform: translateX(0); }
    .sidebar.collapsed .sidebar-text,
    .sidebar.collapsed .sidebar-brand-copy { display: initial; }
    .sidebar.collapsed .sidebar-toggle { display: flex; margin-left: auto; }
    .sidebar.collapsed .nav-section-label { display: block; }
    .sidebar.collapsed .sidebar-menu .nav-link {
        justify-content: flex-start; padding: 0 12px;
        margin: 1px 10px 1px 0; width: calc(100% - 10px);
        border-radius: 0 20px 20px 0; gap: 9px;
    }
    .sidebar.collapsed .sidebar-menu .nav-link i {
        width: 28px; height: 28px; font-size: 15px; border-radius: 7px;
    }
    .sidebar.collapsed .sidebar-menu .nav-link.active::before { display: block; }

    .main-content,
    .sidebar.collapsed + .main-content {
        margin-left: 0;
        padding: 64px 14px 24px;
    }

    /* 小屏内容区通用缩减 */
    .page-header { padding: 14px 16px; border-radius: 14px; }
    .page-header h2 { font-size: 16px; }
}

/* ── 超小屏 (< 400px) ── */
@media (max-width: 400px) {
    .main-content,
    .sidebar.collapsed + .main-content { padding: 60px 10px 20px; }
}

/* ═══════════════════════════════════════════════════════════════
   全局内容区移动端适配 (≤ 768px)
   覆盖所有页面的表格横滚、grid 折叠、卡片堆叠
═══════════════════════════════════════════════════════════════ */
@media (max-width: 768px) {

    /* ── 1. 所有 Bootstrap 表格强制横向滚动 ── */
    .table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
        -webkit-overflow-scrolling: touch;
    }
    /* 已有 table-responsive 的不重复滚动 */
    .table-responsive .table { display: table; overflow-x: visible; white-space: normal; }

    /* ── 2. 卡片/过滤栏 ── */
    .filter-bar,
    .toolbar,
    .action-bar,
    .top-bar,
    .control-bar,
    .monitor-control {
        flex-wrap: wrap !important;
        gap: 8px !important;
    }
    .filter-bar .btn-group,
    .filter-bar input,
    .filter-bar select,
    .toolbar select,
    .toolbar input {
        width: 100% !important;
        max-width: 100% !important;
    }

    /* ── 3. 工作台 (index.html) 统计卡片网格 ── */
    .metrics-grid,
    .kpi-grid,
    .stat-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }
    /* 超过4列的多列卡片区最多2列 */
    [style*="grid-template-columns: repeat(4"],
    [style*="grid-template-columns: repeat(5"],
    [style*="grid-template-columns: repeat(6"] {
        grid-template-columns: repeat(2, 1fr) !important;
    }
    /* 3列网格改2列 */
    [style*="grid-template-columns: repeat(3"] {
        grid-template-columns: repeat(2, 1fr) !important;
    }

    /* ── 4. Bootstrap row 多列布局折叠 ── */
    .row.g-2 > [class*="col-md-"],
    .row.g-3 > [class*="col-md-"],
    .row.g-4 > [class*="col-md-"] {
        flex: 0 0 100%;
        max-width: 100%;
    }
    /* 允许 col-6 / col-sm-6 在小屏保留两列 */
    .row > .col-6,
    .row > .col-sm-6 {
        flex: 0 0 50%;
        max-width: 50%;
    }

    /* ── 5. 左右分栏布局（flex/grid）折叠为上下 ── */
    .split-layout,
    .two-col-layout,
    .panel-layout {
        flex-direction: column !important;
        grid-template-columns: 1fr !important;
    }

    /* ── 6. 工作台大图表/ECharts 容器限高 ── */
    .chart-container,
    .echarts-container,
    [id$="Chart"],
    [id$="-chart"] {
        min-height: 180px !important;
        max-height: 240px !important;
    }

    /* ── 7. 页面标题区 ── */
    .page-header {
        flex-wrap: wrap;
        gap: 8px;
    }
    .page-header .ms-auto,
    .page-header .header-actions {
        width: 100%;
    }
    .page-header .btn { font-size: 12px; padding: 5px 10px; }

    /* ── 8. 模态框宽度 ── */
    .modal-dialog { margin: 8px; }
    .modal-dialog.modal-lg,
    .modal-dialog.modal-xl { max-width: calc(100vw - 16px); }

    /* ── 9. 徽章/标签换行 ── */
    .badge-group,
    .tag-list { flex-wrap: wrap !important; }

    /* ── 10. 设备/告警卡片列表 ── */
    .device-card-grid,
    .alert-card-list {
        grid-template-columns: 1fr !important;
    }

    /* ── 11. 顶部操作栏按钮缩略 ── */
    .btn-toolbar .btn-text { display: none; }
    .btn-icon-only { display: inline-flex !important; }

    /* ── 12. 工作台横向 KPI 行 ── */
    .kpi-row {
        flex-wrap: wrap !important;
    }
    .kpi-row .kpi-item {
        min-width: 40% !important;
        flex: 1 1 40% !important;
    }

    /* ── 13. ip_manager 网段卡片网格 ── */
    #segmentCards,
    .segment-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }

    /* ── 14. snmp_status / bandwidth 监控面板 ── */
    .live-bar,
    .monitor-bar {
        flex-wrap: wrap !important;
        gap: 6px !important;
    }
    .live-bar select,
    .monitor-bar select,
    .live-bar input,
    .monitor-bar input {
        min-width: unset !important;
        width: 100% !important;
    }

    /* ── 15. rack 机柜卡片 ── */
    .rack-overview-grid,
    .cabinet-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }

    /* ── 16. 告警/SLA/阈值页面统计卡片行 ── */
    .stats-row,
    .summary-cards,
    .stat-row,
    #summaryCards {
        grid-template-columns: repeat(2, 1fr) !important;
    }

    /* ── 17. 告警页过滤栏 ── */
    .alert-filters,
    .filter-row {
        flex-wrap: wrap !important;
        gap: 6px !important;
    }
    .alert-filters select,
    .alert-filters input,
    .filter-row select,
    .filter-row input {
        flex: 1 1 120px !important;
    }

    /* ── 18. 模态框内双列表单折叠为单列 ── */
    .modal-body .form-row,
    .modal-body .row-2col,
    .form-row {
        grid-template-columns: 1fr !important;
    }

    /* ── 19. bandwidth 左右分栏 ── */
    .bw-layout,
    .bw-main {
        flex-direction: column !important;
        height: auto !important;
    }
    .bw-left-panel,
    .bw-right-panel {
        width: 100% !important;
        height: auto !important;
        min-height: unset !important;
    }

    /* ── 20. 配置生成器左右分区 ── */
    .cg-wrap {
        grid-template-columns: 1fr !important;
    }
}

/* ── 超小屏补充 (< 480px) ── */
@media (max-width: 480px) {
    /* 统计卡片只剩1列 */
    .metrics-grid,
    .kpi-grid,
    .stat-grid,
    .stats-row,
    .summary-cards,
    #segmentCards,
    .segment-grid {
        grid-template-columns: 1fr !important;
    }
    [style*="grid-template-columns: repeat(2"] {
        grid-template-columns: 1fr !important;
    }
    .row > .col-6,
    .row > .col-sm-6 {
        flex: 0 0 100%;
        max-width: 100%;
    }
    /* 表格字体缩小 */
    .table { font-size: 12px; }
    .table td, .table th { padding: 6px 8px; }
}