/* 永正身份验证系统 - 样式表 */
/* 配色：白色 + 浅蓝纯色，无渐变，无Emoji */

:root {
    --primary: #4A90D9;
    --primary-dark: #357ABD;
    --primary-light: #E8F0FE;
    --primary-bg: #F0F6FF;
    --white: #FFFFFF;
    --gray-50: #F8F9FA;
    --gray-100: #F0F1F3;
    --gray-200: #E2E4E9;
    --gray-300: #CDD2D9;
    --gray-400: #9BA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;
    --green: #22C55E;
    --green-light: #DCFCE7;
    --red: #EF4444;
    --red-light: #FEE2E2;
    --yellow: #EAB308;
    --yellow-light: #FEF9C3;
    --radius: 8px;
    --radius-lg: 12px;
    --shadow: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.08);
    --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: var(--font);
    font-size: 15px;
    line-height: 1.6;
    color: var(--gray-800);
    background: var(--gray-50);
    min-height: 100vh;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }

/* ========== 布局 ========== */
.container { max-width: 640px; margin: 0 auto; padding: 16px; }
.container-lg { max-width: 1024px; margin: 0 auto; padding: 16px; }
.container-xl { max-width: 1280px; margin: 0 auto; padding: 20px; }

/* ========== 头部导航 ========== */
.app-header {
    background: var(--white);
    border-bottom: 2px solid var(--primary-light);
    padding: 12px 16px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}
.app-header .header-inner {
    max-width: 1024px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.app-header .logo {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
}
.app-header .logo span { color: var(--gray-700); font-weight: 400; }
.header-actions { display: flex; gap: 8px; align-items: center; }

/* ========== 底部导航栏 ========== */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--white);
    border-top: 2px solid var(--gray-200);
    display: flex;
    justify-content: space-around;
    padding: 8px 0 12px;
    z-index: 100;
    box-shadow: 0 -1px 3px rgba(0,0,0,0.05);
}
.bottom-nav a {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: 11px;
    color: var(--gray-500);
    gap: 2px;
    padding: 4px 12px;
    border-radius: var(--radius);
    transition: all 0.15s;
}
.bottom-nav a.active { color: var(--primary); }
.bottom-nav a .nav-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}
.page-content { padding-bottom: 80px; }

/* ========== 卡片 ========== */
.card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 20px;
    margin-bottom: 12px;
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-200);
}
.card-header {
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--gray-100);
}

/* ========== 按钮 ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.15s;
    font-family: var(--font);
}
.btn-primary { background: var(--primary); color: var(--white); }
.btn-primary:hover { background: var(--primary-dark); }
.btn-outline { background: var(--white); color: var(--primary); border: 1.5px solid var(--primary); }
.btn-outline:hover { background: var(--primary-light); }
.btn-danger { background: var(--red); color: var(--white); }
.btn-danger:hover { background: #DC2626; }
.btn-success { background: var(--green); color: var(--white); }
.btn-sm { padding: 6px 14px; font-size: 13px; }
.btn-lg { padding: 14px 28px; font-size: 16px; }
.btn-block { display: block; width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-group { display: flex; gap: 8px; flex-wrap: wrap; }

/* ========== 表单 ========== */
.form-group { margin-bottom: 16px; }
.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 6px;
}
.form-input, .form-select, .form-textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 14px;
    color: var(--gray-800);
    background: var(--white);
    transition: border-color 0.15s;
    font-family: var(--font);
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}
.form-textarea { min-height: 100px; resize: vertical; }
.form-hint { font-size: 12px; color: var(--gray-400); margin-top: 4px; }
.form-error { font-size: 12px; color: var(--red); margin-top: 4px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

/* ========== 表格 ========== */
.table-wrap { overflow-x: auto; }
table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}
table th {
    background: var(--primary-bg);
    color: var(--gray-700);
    font-weight: 600;
    padding: 10px 12px;
    text-align: left;
    border-bottom: 2px solid var(--primary-light);
    white-space: nowrap;
}
table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--gray-100);
}
table tr:hover td { background: var(--gray-50); }

/* ========== 标签/Badge ========== */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    white-space: nowrap;
}
.badge-primary { background: var(--primary-light); color: var(--primary); }
.badge-success { background: var(--green-light); color: #166534; }
.badge-danger { background: var(--red-light); color: #991B1B; }
.badge-warning { background: var(--yellow-light); color: #854D0E; }
.badge-gray { background: var(--gray-100); color: var(--gray-600); }

/* ========== 认证盾牌 ========== */
.cert-shield {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--green);
    font-weight: 600;
    font-size: 13px;
}
.cert-shield::before {
    content: '';
    display: inline-block;
    width: 16px;
    height: 16px;
    background: var(--green);
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
}

/* ========== 参会码卡片 ========== */
.attend-card {
    background: var(--white);
    border: 2px solid var(--primary-light);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
    box-shadow: var(--shadow-md);
}
.attend-card .code-label { font-size: 12px; color: var(--gray-500); margin-bottom: 8px; }
.attend-card .code-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 4px;
    margin-bottom: 16px;
}
.attend-card .qr-wrap { margin: 0 auto 12px; max-width: 250px; }
.attend-card .qr-wrap img { width: 100%; height: auto; }
.attend-card .barcode-wrap { margin: 0 auto; max-width: 300px; }
.attend-card .barcode-wrap img { width: 100%; height: auto; }

/* ========== 会议列表项 ========== */
.meeting-item {
    background: var(--white);
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 10px;
    border-left: 4px solid var(--primary);
    box-shadow: var(--shadow);
}
.meeting-item .meeting-name { font-size: 15px; font-weight: 600; color: var(--gray-800); }
.meeting-item .meeting-info { font-size: 12px; color: var(--gray-500); margin-top: 4px; }
.meeting-item .meeting-status { margin-top: 8px; }

/* ========== 步骤向导 ========== */
.steps { display: flex; gap: 4px; margin-bottom: 24px; }
.step {
    flex: 1;
    padding: 10px;
    text-align: center;
    font-size: 12px;
    font-weight: 500;
    background: var(--gray-100);
    color: var(--gray-500);
    border-radius: var(--radius);
}
.step.active { background: var(--primary); color: var(--white); }
.step.done { background: var(--primary-light); color: var(--primary); }

/* ========== 弹窗/模态框 ========== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.modal-box {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 24px;
    max-width: 500px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

/* ========== 消息提示 ========== */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 12px;
    font-size: 13px;
}
.alert-info { background: var(--primary-light); color: var(--primary-dark); border: 1px solid #BFDBFE; }
.alert-success { background: var(--green-light); color: #166534; border: 1px solid #BBF7D0; }
.alert-error { background: var(--red-light); color: #991B1B; border: 1px solid #FECACA; }
.alert-warning { background: var(--yellow-light); color: #854D0E; border: 1px solid #FDE68A; }

/* ========== 空状态 ========== */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--gray-400);
}
.empty-state .empty-icon { font-size: 48px; margin-bottom: 12px; color: var(--gray-300); }
.empty-state .empty-text { font-size: 14px; }

/* ========== 工具类 ========== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-primary { color: var(--primary); }
.text-gray { color: var(--gray-500); }
.text-green { color: var(--green); }
.text-red { color: var(--red); }
.text-sm { font-size: 12px; }
.text-lg { font-size: 16px; }
.text-xl { font-size: 20px; }
.font-bold { font-weight: 700; }
.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 12px; }
.mb-4 { margin-bottom: 16px; }
.p-3 { padding: 12px; }
.p-4 { padding: 16px; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.w-full { width: 100%; }
.hidden { display: none; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.relative { position: relative; }

/* ========== 头像 ========== */
.avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--primary-light);
    border: 3px solid var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    font-size: 24px;
    color: var(--primary);
}
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.avatar-sm { width: 36px; height: 36px; font-size: 14px; border-width: 2px; }

/* ========== 搜索框 ========== */
.search-box {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}
.search-box .form-input { flex: 1; }

/* ========== 分页 ========== */
.pagination {
    display: flex;
    justify-content: center;
    gap: 4px;
    margin-top: 16px;
}
.pagination a, .pagination span {
    padding: 6px 12px;
    border-radius: var(--radius);
    font-size: 13px;
    border: 1px solid var(--gray-200);
    color: var(--gray-600);
    background: var(--white);
}
.pagination a:hover { background: var(--primary-light); border-color: var(--primary); }
.pagination .current { background: var(--primary); color: var(--white); border-color: var(--primary); }

/* ========== 标签切换 ========== */
.tabs {
    display: flex;
    gap: 0;
    border-bottom: 2px solid var(--gray-200);
    margin-bottom: 16px;
}
.tab {
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-500);
    border: none;
    background: none;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all 0.15s;
}
.tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}
.tab:hover { color: var(--primary); }

/* ========== 响应式 ========== */
@media (max-width: 640px) {
    .form-row { grid-template-columns: 1fr; }
    .container-lg { padding: 10px; }
    .card { padding: 14px; }
    .attend-card .code-value { font-size: 22px; }
}