/* ========== 全局重置 ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    overflow: hidden; /* 禁止 body 滚动，由内部容器控制 */
}

body {
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
    background: #0b0f1f;
    color: #e8f0ff;
}

/* ========== 布局容器 ========== */
.app-wrapper {
    display: flex;
    height: 100vh; /* 桌面全屏 */
    width: 100%;
    overflow: hidden; /* 防止容器自身滚动 */
}

/* ========== 左侧导航（桌面） ========== */
.sidebar {
    width: 240px;
    background: linear-gradient(180deg, #0d1326 0%, #1a2340 100%);
    backdrop-filter: blur(10px);
    border-right: 1px solid rgba(0, 229, 255, 0.15);
    box-shadow: 4px 0 30px rgba(0, 0, 0, 0.6);
    display: flex;
    flex-direction: column;
    padding: 20px 0;
    flex-shrink: 0;
    height: 100vh;
    position: sticky;
    top: 0;
    overflow-y: auto;
    z-index: 1000;
}

.sidebar-brand {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 2px;
    padding: 0 20px 30px 20px;
    color: #00e5ff;
    text-shadow: 0 0 20px rgba(0, 229, 255, 0.3);
    border-bottom: 1px solid rgba(0, 229, 255, 0.2);
    display: flex;
    align-items: center;
    gap: 10px;
}
.sidebar-brand i {
    font-size: 28px;
    color: #00e5ff;
}

.sidebar-nav {
    list-style: none;
    padding: 20px 0 0 0;
    margin: 0;
    flex: 1;
}
.sidebar-nav .nav-item {
    margin: 4px 12px;
}
.sidebar-nav .nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 18px;
    border-radius: 10px;
    color: #b8cbe0;
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.25s ease;
    background: transparent;
    border: 1px solid transparent;
}
.sidebar-nav .nav-link i {
    width: 20px;
    text-align: center;
    font-size: 18px;
    color: #7a9ab8;
    transition: 0.25s;
}
.sidebar-nav .nav-link:hover {
    background: rgba(0, 229, 255, 0.08);
    border-color: rgba(0, 229, 255, 0.2);
    color: #ffffff;
    box-shadow: 0 0 20px rgba(0, 229, 255, 0.05);
    transform: translateX(4px);
}
.sidebar-nav .nav-link:hover i {
    color: #00e5ff;
    text-shadow: 0 0 12px rgba(0, 229, 255, 0.5);
}
.sidebar-nav .nav-link.active {
    background: rgba(0, 229, 255, 0.12);
    border-color: #00e5ff;
    color: #fff;
    box-shadow: 0 0 30px rgba(0, 229, 255, 0.08);
}
.sidebar-nav .nav-link.active i {
    color: #00e5ff;
}

.logout-item {
    margin-top: auto;
    border-top: 1px solid rgba(255,255,255,0.06);
    padding-top: 12px;
}
.logout-item .nav-link {
    color: #f28b8b;
}
.logout-item .nav-link:hover {
    background: rgba(255, 80, 80, 0.1);
    border-color: rgba(255, 80, 80, 0.3);
    color: #ff6b6b;
}
.logout-item .nav-link:hover i {
    color: #ff6b6b;
}

.sidebar-footer {
    padding: 16px 20px 0 20px;
    border-top: 1px solid rgba(255,255,255,0.05);
    margin-top: 8px;
    font-size: 13px;
    color: #8ab0d0;
}
.sidebar-footer .user-info {
    display: flex;
    align-items: center;
    gap: 8px;
}
.sidebar-footer .user-info i {
    color: #00e5ff;
}

/* ========== 右侧主内容 ========== */
.main-content {
    flex: 1;
    height: 100vh;
    overflow-y: auto;
    padding: 20px 30px;
    background: radial-gradient(ellipse at 20% 50%, #111b2e, #0b0f1f 80%);
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
}

.main-content .container-fluid {
    max-width: 1400px;
    margin: 0 auto;
}

/* ========== 底部备案信息 ========== */
.site-footer {
    margin-top: 28px;
    padding: 16px 0 8px 0;
    border-top: 1px solid rgba(0, 229, 255, 0.12);
    text-align: center;
    font-size: 13px;
    color: #7a9ab8;
}
.site-footer a {
    color: #8ab0d0;
    text-decoration: none;
    transition: color 0.25s ease;
}
.site-footer a:hover {
    color: #00e5ff;
    text-shadow: 0 0 12px rgba(0, 229, 255, 0.4);
}
.site-footer i {
    color: #00e5ff;
    margin-right: 4px;
}

/* 其余样式（卡片、表格、按钮、表单等）保持不变，省略... */
/* 此处插入您之前已有的所有卡片、表格、按钮、表单、分页、Modal 样式 */
/* 为了避免遗漏，请将您原有样式中的这部分内容保留，或将下面的代码合并 */

/* ---------- 以下是您之前已有的通用组件样式（请确保包含） ---------- */
.card {
    background: rgba(20, 30, 50, 0.7);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(0, 229, 255, 0.15);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    color: #e8f0ff;
}
.card-header {
    background: rgba(0, 229, 255, 0.06);
    border-bottom: 1px solid rgba(0, 229, 255, 0.1);
    font-weight: 600;
    color: #c8e0ff;
}
.card-body {
    padding: 20px;
}

h1, h2, h3, h4, h5, h6 {
    color: #d0e8ff;
}
label, .form-label {
    color: #b0d0f0;
    font-weight: 500;
}

.table {
    color: #e8f0ff;
}
.table-striped > tbody > tr:nth-of-type(odd) {
    background-color: rgba(0, 229, 255, 0.03);
}
.table-hover > tbody > tr:hover {
    background-color: rgba(0, 229, 255, 0.08);
}
.table thead th {
    border-bottom: 2px solid rgba(0, 229, 255, 0.25);
    color: #8ac4ff;
    font-weight: 600;
}
.table td, .table th {
    border-color: rgba(255, 255, 255, 0.08);
    padding: 10px 8px;
    vertical-align: middle;
}
.table .total-row {
    font-weight: 600;
    color: #ffd866;
}

.btn {
    border-radius: 8px;
    font-weight: 500;
    transition: 0.3s;
}
.btn-primary {
    background: linear-gradient(135deg, #00b4d8, #0077b6);
    border: none;
    box-shadow: 0 4px 15px rgba(0, 180, 216, 0.3);
    color: #fff;
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 180, 216, 0.5);
    color: #fff;
}
.btn-success {
    background: linear-gradient(135deg, #00c853, #00b248);
    border: none;
    box-shadow: 0 4px 15px rgba(0, 200, 83, 0.3);
    color: #fff;
}
.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 200, 83, 0.5);
    color: #fff;
}
.btn-warning {
    background: linear-gradient(135deg, #ffb300, #ff8f00);
    border: none;
    color: #1a1a2e;
}
.btn-warning:hover {
    color: #1a1a2e;
}
.btn-danger {
    background: linear-gradient(135deg, #ff5252, #d32f2f);
    border: none;
    color: #fff;
}
.btn-danger:hover {
    color: #fff;
}
.btn-secondary {
    background: #2a3a5a;
    border: none;
    color: #d0e0f0;
}
.btn-secondary:hover {
    background: #3a4a6a;
    color: #fff;
}

.form-control, .form-select {
    background: rgba(10, 18, 36, 0.8);
    border: 1px solid rgba(0, 229, 255, 0.2);
    color: #e8f0ff;
    border-radius: 8px;
    transition: 0.3s;
}
.form-control:focus, .form-select:focus {
    background: rgba(10, 18, 36, 0.9);
    border-color: #00e5ff;
    box-shadow: 0 0 20px rgba(0, 229, 255, 0.1);
    color: #ffffff;
}
.form-control::placeholder {
    color: #7a9ab8;
}
.form-control[readonly] {
    background: rgba(0, 20, 40, 0.5);
    color: #b0c8e0;
}

input[type="date"]::-webkit-calendar-picker-indicator {
    filter: invert(1) brightness(2);
    cursor: pointer;
}
input[type="date"] {
    color-scheme: dark;
}

.flash-message {
    background: rgba(20, 40, 70, 0.8);
    backdrop-filter: blur(4px);
    border: 1px solid rgba(0, 229, 255, 0.2);
    color: #e8f0ff;
    border-radius: 12px;
}
.alert-success {
    border-color: rgba(0, 200, 83, 0.4);
    background: rgba(0, 200, 83, 0.12);
}
.alert-danger {
    border-color: rgba(255, 80, 80, 0.4);
    background: rgba(255, 80, 80, 0.12);
}
.alert-warning {
    border-color: rgba(255, 180, 0, 0.4);
    background: rgba(255, 180, 0, 0.12);
}
.alert-info {
    border-color: rgba(0, 180, 216, 0.4);
    background: rgba(0, 180, 216, 0.12);
}

.pagination .page-link {
    background: rgba(10, 18, 36, 0.6);
    border: 1px solid rgba(0, 229, 255, 0.15);
    color: #b8d0e8;
}
.pagination .page-link:hover {
    background: rgba(0, 229, 255, 0.1);
    color: #fff;
}
.pagination .page-item.active .page-link {
    background: #00b4d8;
    border-color: #00b4d8;
    color: #fff;
    box-shadow: 0 0 20px rgba(0, 180, 216, 0.4);
}
.pagination .page-item.disabled .page-link {
    color: #5a7a9a;
}

.suggestions-list {
    background: #0d1a30;
    border-color: rgba(0, 229, 255, 0.2);
}
.suggestions-list .list-group-item {
    color: #d0e0f0;
    border-bottom-color: rgba(255,255,255,0.05);
}
.suggestions-list .list-group-item:hover {
    background: rgba(0, 229, 255, 0.12);
    color: #fff;
}

.modal-content {
    background: #121e36;
    border: 1px solid rgba(0, 229, 255, 0.2);
    color: #e8f0ff;
}
.modal-header {
    border-bottom: 1px solid rgba(0, 229, 255, 0.1);
}
.modal-footer {
    border-top: 1px solid rgba(0, 229, 255, 0.1);
}
.modal-header-success {
    background: rgba(0, 200, 83, 0.25);
}
.modal-header-danger {
    background: rgba(255, 80, 80, 0.25);
}
.modal-header-warning {
    background: rgba(255, 180, 0, 0.25);
}
.btn-close {
    filter: invert(1) brightness(1.5);
}

::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: #0b0f1f;
}
::-webkit-scrollbar-thumb {
    background: #1a3a5a;
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: #00b4d8;
}

/* ========== 移动端响应式（关键修复） ========== */
@media (max-width: 768px) {
    /* 外层容器改为列方向，高度由内容撑开，但限制高度 */
    .app-wrapper {
        flex-direction: column;
        height: 100vh;          /* 保持全屏高度，防止底部空白 */
        overflow: hidden;       /* 禁止外层滚动 */
    }

    /* 导航栏：水平排列，高度自适应 */
    .sidebar {
        width: 100%;
        height: auto;
        flex-shrink: 0;         /* 防止被压缩 */
        position: static;
        flex-direction: row;
        flex-wrap: wrap;
        padding: 10px 16px;
        border-right: none;
        border-bottom: 1px solid rgba(0, 229, 255, 0.15);
        overflow-y: visible;
        box-shadow: 0 2px 10px rgba(0,0,0,0.4);
        backdrop-filter: blur(10px);
    }
    .sidebar-brand {
        padding: 8px 0;
        border-bottom: none;
        font-size: 18px;
        width: 100%;
        margin-bottom: 6px;
    }
    .sidebar-nav {
        display: flex;
        flex-wrap: wrap;
        padding: 0;
        gap: 4px;
        width: 100%;
        flex: none;
    }
    .sidebar-nav .nav-item {
        margin: 2px 4px;
    }
    .sidebar-nav .nav-link {
        padding: 6px 12px;
        font-size: 13px;
        gap: 6px;
    }
    .sidebar-nav .nav-link i {
        font-size: 14px;
    }
    .sidebar-footer {
        display: none;
    }
    .logout-item {
        margin-top: 0;
        border-top: none;
        padding-top: 0;
    }

    /* 主内容区：占据剩余高度，滚动 */
    .main-content {
        flex: 1 1 auto;         /* 可伸缩 */
        height: auto;           /* 高度自适应 */
        min-height: 0;          /* 允许收缩，防止撑开父容器 */
        overflow-y: auto;
        padding: 16px 12px;
        -webkit-overflow-scrolling: touch;
        overscroll-behavior: contain;
        /* 确保内容区域不超出 */
        max-height: calc(100vh - 80px); /* 减去导航高度，约80px */
    }

    .card {
        margin-bottom: 12px;
    }
    .card-body {
        padding: 14px;
    }
    .table-responsive {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    .form-control, .form-select {
        font-size: 16px; /* 防止iOS自动缩放 */
    }
}