/* 短信代收中转平台 - 全站样式 */
:root {
    --bg-primary: #0f1923;
    --bg-secondary: #1a2733;
    --bg-card: #1e2d3d;
    --bg-input: #15202b;
    --text-primary: #e1e8ed;
    --text-secondary: #8899a6;
    --text-muted: #657786;
    --accent: #1da1f2;
    --accent-hover: #1a8cd8;
    --success: #17bf63;
    --warning: #ffad1f;
    --danger: #e0245e;
    --border: #38444d;
    --shadow: rgba(0,0,0,0.3);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}
a { color: var(--accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent-hover); }
/* 导航栏 */
.navbar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 56px;
    position: sticky;
    top: 0;
    z-index: 100;
}
.navbar-brand {
    font-size: 18px;
    font-weight: 700;
    color: var(--accent);
}
.navbar-nav { display: flex; gap: 20px; list-style: none; }
.navbar-nav a {
    color: var(--text-secondary);
    padding: 8px 0;
    font-size: 14px;
}
.navbar-nav a:hover, .navbar-nav a.active { color: var(--text-primary); }
/* 容器 */
.container { max-width: 1200px; margin: 0 auto; padding: 20px; }
.container-fluid { padding: 20px; }
/* 卡片 */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 16px;
}
.card-header {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
/* 表格 */
.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}
.table th, .table td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}
.table th {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.table tr:hover { background: rgba(255,255,255,0.03); }
/* 表单 */
.form-group { margin-bottom: 16px; }
.form-group label {
    display: block;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 6px;
    font-weight: 500;
}
.form-control {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s;
}
.form-control:focus { border-color: var(--accent); }
select.form-control { appearance: auto; }
textarea.form-control { min-height: 100px; resize: vertical; }
/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 20px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    gap: 6px;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { opacity: 0.9; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { opacity: 0.9; }
.btn-warning { background: var(--warning); color: #000; }
.btn-secondary { background: var(--border); color: var(--text-primary); }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text-primary); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-sm { padding: 5px 12px; font-size: 12px; }
.btn-lg { padding: 12px 28px; font-size: 16px; }
/* 徽章 */
.badge {
    display: inline-block;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
}
.badge-success { background: rgba(23,191,99,0.2); color: var(--success); }
.badge-warning { background: rgba(255,173,31,0.2); color: var(--warning); }
.badge-danger { background: rgba(224,36,94,0.2); color: var(--danger); }
.badge-info { background: rgba(29,161,242,0.2); color: var(--accent); }
.badge-secondary { background: rgba(101,119,134,0.2); color: var(--text-muted); }
/* 提示消息 */
.alert {
    padding: 12px 16px;
    border-radius: 6px;
    margin-bottom: 16px;
    font-size: 14px;
}
.alert-success { background: rgba(23,191,99,0.1); border: 1px solid var(--success); color: var(--success); }
.alert-danger { background: rgba(224,36,94,0.1); border: 1px solid var(--danger); color: var(--danger); }
.alert-warning { background: rgba(255,173,31,0.1); border: 1px solid var(--warning); color: var(--warning); }
.alert-info { background: rgba(29,161,242,0.1); border: 1px solid var(--accent); color: var(--accent); }
/* 统计卡片 */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}
.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
    text-align: center;
}
.stat-card .stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--accent);
    margin: 8px 0;
}
.stat-card .stat-label {
    font-size: 13px;
    color: var(--text-secondary);
}
/* 分页 */
.pagination { display: flex; gap: 6px; justify-content: center; margin-top: 20px; }
.pagination a, .pagination span {
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 13px;
    color: var(--text-secondary);
    border: 1px solid var(--border);
}
.pagination a:hover { border-color: var(--accent); color: var(--accent); }
.pagination .active { background: var(--accent); color: #fff; border-color: var(--accent); }
/* 工具类 */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-muted { color: var(--text-muted); }
.mt-10 { margin-top: 10px; }
.mt-20 { margin-top: 20px; }
.mb-10 { margin-bottom: 10px; }
.mb-20 { margin-bottom: 20px; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-10 { gap: 10px; }
.hidden { display: none; }
/* 模态框 */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.6);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}
.modal-overlay.active { display: flex; }
.modal-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
}
.modal-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
}
.modal-close {
    float: right;
    cursor: pointer;
    color: var(--text-muted);
    font-size: 20px;
}
.modal-close:hover { color: var(--text-primary); }
/* 布局 */
.grid-2 { display: grid; grid-template-columns: 240px 1fr; min-height: calc(100vh - 56px); }
.sidebar {
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    padding: 20px 0;
}
.sidebar a {
    display: block;
    padding: 10px 20px;
    color: var(--text-secondary);
    font-size: 14px;
}
.sidebar a:hover, .sidebar a.active {
    color: var(--text-primary);
    background: rgba(29,161,242,0.1);
    border-right: 3px solid var(--accent);
}
.sidebar-title {
    padding: 10px 20px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-top: 12px;
}
.main-content { padding: 20px 30px; overflow-x: auto; }
/* 搜索/筛选 */
.filter-bar {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
    flex-wrap: wrap;
    align-items: flex-end;
}
.filter-bar .form-group { margin-bottom: 0; }
.filter-bar .form-control { width: auto; min-width: 160px; }
/* 移动端菜单按钮 */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 24px;
    cursor: pointer;
    padding: 4px 8px;
    line-height: 1;
}
/* 移动端侧边栏遮罩 */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 199;
}
/* ==================== 响应式 - 手机端适配 ==================== */
@media (max-width: 768px) {
    /* 导航栏 */
    .navbar { padding: 0 12px; height: 50px; }
    .navbar-brand { font-size: 15px; }
    .navbar-nav {
        display: none;
        position: fixed;
        top: 50px; left: 0; right: 0;
        background: var(--bg-secondary);
        flex-direction: column;
        padding: 8px 0;
        border-bottom: 1px solid var(--border);
        z-index: 200;
        gap: 0;
    }
    .navbar-nav.open { display: flex; }
    .navbar-nav li { width: 100%; }
    .navbar-nav a {
        display: block;
        padding: 12px 20px;
        border-bottom: 1px solid var(--border);
    }
    .menu-toggle { display: block; }
    /* 后台侧边栏 */
    .grid-2 { grid-template-columns: 1fr; }
    .sidebar {
        position: fixed;
        top: 0; left: -260px; bottom: 0;
        width: 260px;
        z-index: 300;
        overflow-y: auto;
        transition: left 0.3s ease;
    }
    .sidebar.open { left: 0; }
    .sidebar-overlay.open { display: block; }
    .main-content { padding: 16px; }
    /* 统计卡片 */
    .stat-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .stat-card { padding: 14px 10px; }
    .stat-card .stat-value { font-size: 22px; }
    .stat-card .stat-label { font-size: 12px; }
    /* 筛选栏 */
    .filter-bar { flex-direction: column; }
    .filter-bar .form-control { width: 100%; min-width: auto; }
    /* 表格 */
    .table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
    .table { min-width: 600px; font-size: 13px; }
    .table th, .table td { padding: 8px 10px; white-space: nowrap; }
    /* 表单 */
    .form-control { font-size: 16px; padding: 12px; }
    .btn { padding: 10px 16px; font-size: 14px; }
    .btn-lg { padding: 12px 20px; font-size: 15px; }
    /* 首页hero */
    .hero h1 { font-size: 28px; }
    .hero p { font-size: 15px; }
    .hero-buttons { flex-direction: column; width: 100%; max-width: 300px; }
    .hero-buttons .btn { width: 100%; }
    .feature-grid { grid-template-columns: 1fr; gap: 12px; margin-top: 30px; }
    .feature-card { padding: 18px; }
    /* 卡片 */
    .card { padding: 16px; }
    .card-header { font-size: 14px; flex-direction: column; align-items: flex-start; gap: 8px; }
    /* 充值预设按钮 */
    .recharge-presets { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
    /* 取号弹窗 */
    .modal-box { padding: 20px 16px; max-width: 95%; }
    .modal-title { font-size: 16px; }
    /* 工单双栏 */
    .ticket-layout { flex-direction: column; }
    .ticket-layout > div { width: 100%; }
    /* 分页 */
    .pagination { flex-wrap: wrap; gap: 4px; }
    .pagination a, .pagination span { padding: 5px 10px; font-size: 12px; }
    /* 表格操作按钮 */
    .table .btn-sm { padding: 4px 8px; font-size: 11px; }
    /* flex布局 */
    .flex-between { flex-direction: column; gap: 10px; align-items: flex-start; }
    /* 隐藏非必要列 */
    .hide-mobile { display: none !important; }
}
/* 小手机 (< 400px) */
@media (max-width: 400px) {
    .stat-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
    .stat-card .stat-value { font-size: 18px; }
    .recharge-presets { grid-template-columns: repeat(2, 1fr); }
    .container { padding: 12px; }
    .hero { padding: 30px 16px; }
    .hero h1 { font-size: 24px; }
}
/* 滚动条 */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }