/* 标书助手 - 样式表 */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #dbeafe;
    --success: #16a34a;
    --success-bg: #dcfce7;
    --warning: #d97706;
    --warning-bg: #fef3c7;
    --danger: #dc2626;
    --danger-bg: #fee2e2;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-500: #6b7280;
    --gray-700: #374151;
    --gray-900: #111827;
    --radius: 12px;
    --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: var(--gray-50);
    color: var(--gray-900);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

/* 导航 */
.navbar {
    background: white;
    border-bottom: 1px solid var(--gray-200);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}
.nav-content { display: flex; align-items: center; justify-content: space-between; }
.logo { font-size: 20px; font-weight: 700; color: var(--primary); }
.nav-badge {
    background: var(--primary-light);
    color: var(--primary);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
}

/* 页面切换 */
.page { display: none; padding: 40px 0; flex: 1; }
.page.active { display: block; }

/* Hero */
.hero { text-align: center; padding: 40px 0; }
.hero h1 { font-size: 36px; font-weight: 800; margin-bottom: 12px; }
.hero-sub { font-size: 18px; color: var(--gray-500); margin-bottom: 40px; }
.hero-features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}
.feature-card {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 24px 16px;
    transition: all 0.2s;
}
.feature-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}
.feature-icon { font-size: 32px; margin-bottom: 12px; }
.feature-title { font-weight: 700; margin-bottom: 6px; font-size: 15px; }
.feature-desc { font-size: 13px; color: var(--gray-500); }
.hero-note { font-size: 13px; color: var(--gray-500); margin-top: 12px; }

/* 按钮 */
.btn-primary {
    background: var(--primary);
    color: white;
    border: none;
    padding: 12px 32px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); }
.btn-primary:disabled { background: var(--gray-300); cursor: not-allowed; transform: none; }
.btn-large { padding: 16px 48px; font-size: 18px; border-radius: 12px; }
.btn-secondary {
    background: white;
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 15px;
    cursor: pointer;
    transition: all 0.2s;
}
.btn-secondary:hover { border-color: var(--gray-500); }
.btn-outline {
    background: white;
    color: var(--primary);
    border: 1px solid var(--primary);
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
    margin-top: 12px;
}
.btn-outline:hover { background: var(--primary-light); }

/* 上传页 */
.upload-section { max-width: 800px; margin: 0 auto; }
.upload-section h2 { text-align: center; margin-bottom: 32px; font-size: 24px; }
.upload-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 32px; }
.upload-card {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
}
.upload-icon { font-size: 40px; margin-bottom: 8px; }
.upload-card h3 { margin-bottom: 4px; }
.upload-hint { font-size: 13px; color: var(--gray-500); margin-bottom: 16px; }
.upload-area {
    border: 2px dashed var(--gray-300);
    border-radius: 8px;
    padding: 24px;
    margin-bottom: 8px;
    cursor: pointer;
    transition: all 0.2s;
    min-height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.upload-area:hover, .upload-area.dragover {
    border-color: var(--primary);
    background: var(--primary-light);
}
.upload-plus { font-size: 32px; color: var(--gray-300); display: block; }
.upload-placeholder p { font-size: 14px; color: var(--gray-500); margin-top: 4px; }
.upload-formats { font-size: 12px !important; color: var(--gray-300) !important; }
.upload-selected {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px;
}
.file-icon { font-size: 20px; }
.file-name { font-size: 14px; font-weight: 500; flex: 1; text-align: left; word-break: break-all; }
.btn-remove {
    background: none;
    border: none;
    color: var(--gray-500);
    cursor: pointer;
    font-size: 16px;
    padding: 4px;
}
.btn-remove:hover { color: var(--danger); }
.upload-actions { display: flex; justify-content: center; gap: 16px; }

/* 加载页 */
.loading-section { text-align: center; padding: 80px 0; }
.loading-spinner {
    width: 56px;
    height: 56px;
    border: 4px solid var(--gray-200);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 24px;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading-step { color: var(--gray-500); margin-top: 8px; }
.progress-bar {
    width: 300px;
    height: 6px;
    background: var(--gray-200);
    border-radius: 3px;
    margin: 24px auto;
    overflow: hidden;
}
.progress-fill {
    height: 100%;
    background: var(--primary);
    border-radius: 3px;
    width: 10%;
    transition: width 0.5s ease;
}
.loading-note { font-size: 13px; color: var(--gray-500); margin-top: 16px; }

/* 结果页 */
.result-section { max-width: 900px; margin: 0 auto; }
.result-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
}
.result-header h2 { font-size: 24px; }
.result-score-circle {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.score-num { font-size: 32px; font-weight: 800; line-height: 1; }
.score-max { font-size: 13px; opacity: 0.8; }

/* Tab */
.result-tabs { display: flex; gap: 4px; margin-bottom: 24px; border-bottom: 2px solid var(--gray-200); }
.tab-btn {
    background: none;
    border: none;
    padding: 12px 20px;
    font-size: 15px;
    color: var(--gray-500);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all 0.2s;
}
.tab-btn:hover { color: var(--gray-700); }
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }
.tab-panel h3 { margin-bottom: 16px; font-size: 18px; }

/* 表格 */
.data-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}
.data-table th, .data-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
    font-size: 14px;
}
.data-table th {
    background: var(--gray-50);
    font-weight: 600;
    color: var(--gray-700);
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--gray-50); }

/* 状态标签 */
.status-tag {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}
.status-pass { background: var(--success-bg); color: var(--success); }
.status-partial { background: var(--warning-bg); color: var(--warning); }
.status-missing { background: var(--danger-bg); color: var(--danger); }

.severity-critical { background: var(--danger-bg); color: var(--danger); }
.severity-warning { background: var(--warning-bg); color: var(--warning); }
.severity-info { background: var(--primary-light); color: var(--primary); }

/* 完整性汇总 */
.check-summary {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
}
.summary-card {
    flex: 1;
    padding: 16px;
    border-radius: var(--radius);
    text-align: center;
}
.summary-card .num { font-size: 28px; font-weight: 800; display: block; }
.summary-card .label { font-size: 13px; color: var(--gray-500); }
.summary-pass { background: var(--success-bg); }
.summary-partial { background: var(--warning-bg); }
.summary-missing { background: var(--danger-bg); }

/* 错误列表 */
.error-item {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 12px;
    box-shadow: var(--shadow);
}
.error-item .error-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}
.error-item .error-desc { font-size: 14px; color: var(--gray-700); }
.error-item .error-suggestion { font-size: 13px; color: var(--primary); margin-top: 8px; }

/* 评分汇总 */
.score-summary {
    background: white;
    border: 2px solid var(--primary);
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
    margin-top: 24px;
}
.score-summary .total-label { font-size: 14px; color: var(--gray-500); }
.score-summary .total-score { font-size: 48px; font-weight: 800; color: var(--primary); }
.score-summary .total-max { font-size: 18px; color: var(--gray-500); }
.score-summary .summary-text { margin-top: 8px; font-size: 14px; color: var(--gray-700); }

/* 进度条颜色 */
.score-bar {
    width: 60px;
    height: 6px;
    background: var(--gray-200);
    border-radius: 3px;
    display: inline-block;
    vertical-align: middle;
    margin-left: 8px;
}
.score-bar-fill { height: 100%; border-radius: 3px; }

/* 底部 */
.footer {
    text-align: center;
    padding: 20px;
    color: var(--gray-500);
    font-size: 13px;
    border-top: 1px solid var(--gray-200);
    margin-top: auto;
}

/* 响应式 */
@media (max-width: 768px) {
    .hero-features { grid-template-columns: 1fr 1fr; }
    .upload-grid { grid-template-columns: 1fr; }
    .result-header { flex-direction: column; gap: 16px; }
    .result-tabs { flex-wrap: wrap; }
    .check-summary { flex-direction: column; }
}