/* 基础样式 */
* {
    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: #f5f7fa;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 32px;
}

/* 导航栏 */
.navbar {
    background: #003366;
    border-bottom: 2px solid #00A0E9;
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 4px 16px rgba(0,51,102,0.12);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo-badge {
    width: 60px;
    height: 60px;
    object-fit: contain;
    padding: 8px;
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(8px);
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.logo-badge:hover {
    background: rgba(255, 255, 255, 0.95);
    border-color: rgba(0, 160, 233, 0.6);
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 160, 233, 0.2);
}

.logo-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.logo {
    font-size: 20px;
    font-weight: 600;
    color: #ffffff;
    line-height: 1.3;
    letter-spacing: 0.5px;
}

.logo-subtitle {
    display: flex;
    align-items: center;
    gap: 8px;
}

.college-logo {
    height: 22px;
    object-fit: contain;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(8px);
    padding: 5px 13px;
    border-radius: 18px;
    border: 1px solid rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.college-logo:hover {
    background: rgba(255, 255, 255, 0.98);
    border-color: rgba(0, 160, 233, 0.5);
    transform: translateY(-1px);
    box-shadow: 0 3px 10px rgba(0, 160, 233, 0.15);
}

.nav-info {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 8px;
    font-size: 13px;
}

.nav-info .course {
    font-weight: 600;
    color: #ffffff;
    font-size: 15px;
}

.nav-info .group {
    color: #b0d4f1;
    font-size: 13px;
}

.nav-info .sample-size {
    color: #b0d4f1;
    font-size: 12px;
    background: rgba(0,160,233,0.1);
    padding: 4px 10px;
    border-radius: 12px;
}

.nav-info .sample-size strong {
    color: #00A0E9;
    font-weight: 700;
}

/* KPI卡片区域 */
.hero {
    background: linear-gradient(180deg, #f8fafe 0%, #fff 100%);
    padding: 24px 0;
    margin-bottom: 20px;
}

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    max-width: 1300px;
    margin: 0 auto;
}

.kpi-card {
    text-align: center;
    padding: 16px 12px;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: #ffffff;
    box-shadow: 0 2px 8px rgba(0,51,102,0.06);
}

.kpi-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,51,102,0.15);
    border-color: #003366;
}

.kpi-value {
    font-size: 42px;
    font-weight: 700;
    color: #003366;
    margin-bottom: 6px;
}

.kpi-label {
    font-size: 14px;
    font-weight: 600;
    color: #555;
    margin-bottom: 2px;
}

.kpi-desc {
    font-size: 12px;
    color: #888;
}

/* Tab导航 */
.tabs {
    display: flex;
    gap: 0;
    margin: 20px 0 0;
    padding: 0 0 0 16px;
    border-bottom: 2px solid #e0e0e0;
    background: #fff;
}

.tab-btn {
    padding: 12px 24px;
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: #666;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.tab-btn:hover {
    color: #003366;
    background: #f8f9fa;
}

.tab-btn.active {
    color: #003366;
    font-weight: 600;
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 3px;
    background: #003366;
}

/* Tab内容 */
.tab-content {
    display: none;
    background: #fff;
    padding: 20px;
    margin-bottom: 20px;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.4s ease;
}

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

.section-title {
    font-size: 22px;
    font-weight: 700;
    color: #003366;
    margin-bottom: 16px;
    padding-left: 12px;
    padding-bottom: 8px;
    border-left: 4px solid #003366;
    border-bottom: 2px solid #ecf0f1;
}

/* 图表容器 */
.chart-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 16px;
}

.chart-container {
    background: #fff;
    border: 1px solid #e8e8e8;
    border-radius: 4px;
    padding: 16px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.chart-container:hover {
    box-shadow: 0 4px 16px rgba(0,51,102,0.08);
    border-color: #d0d0d0;
    transform: translateY(-2px) scale(1.002);
}

.chart-container.full-width {
    grid-column: 1 / -1;
}

.chart-container h3 {
    font-size: 15px;
    font-weight: 600;
    color: #003366;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid #f0f0f0;
}

.chart-container canvas {
    max-height: 280px;
}

/* 洞察盒子 */
.insight-box {
    background: #f5f8fc;
    border-left: 4px solid #003366;
    padding: 16px 20px;
    margin-top: 16px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,51,102,0.08);
}

.insight-box h3 {
    font-size: 16px;
    font-weight: 600;
    color: #003366;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
}

.insight-box h3::before {
    content: "💡";
    margin-right: 6px;
    font-size: 18px;
}

.insight-list {
    list-style: none;
}

.insight-list li {
    padding: 6px 0;
    border-bottom: 1px solid #e0e0e0;
    font-size: 13px;
    line-height: 1.6;
    margin-bottom: 8px;
}

.insight-list li:last-child {
    border-bottom: none;
}

.insight-list strong {
    color: #2c3e50;
}

/* 策略卡片 */
.strategy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 24px;
}

.strategy-card {
    border-radius: 8px;
    padding: 24px;
    border-left: 4px solid;
    box-shadow: 0 4px 12px rgba(0,51,102,0.1);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.strategy-card.urgent {
    background: #fff5f5;
    border-left-color: #e74c3c;
}

.strategy-card.important {
    background: #fffbf0;
    border-left-color: #f39c12;
}

.strategy-card.opportunity {
    background: #f0f9ff;
    border-left-color: #27ae60;
}

.strategy-card h3 {
    font-size: 16px;
    margin-bottom: 12px;
    color: #2c3e50;
}

.strategy-card ul {
    list-style: none;
}

.strategy-card li {
    padding: 8px 0;
    font-size: 14px;
    line-height: 1.5;
    color: #555;
}

.strategy-card li strong {
    color: #2c3e50;
}

/* 反馈区域 - 折叠式 */
.feedback-filter {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 8px 16px;
    border: 1px solid #ddd;
    background: #fff;
    border-radius: 16px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    color: #666;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 4px rgba(0,0,0,0.08);
}

.filter-btn:hover {
    border-color: #003366;
    color: #003366;
    transform: translateY(-1px);
    box-shadow: 0 3px 6px rgba(0,51,102,0.12);
}

.filter-btn.active {
    background: #003366;
    color: #fff;
    border-color: #003366;
    box-shadow: 0 4px 12px rgba(0,51,102,0.2);
}

/* 折叠式反馈列表 */
.feedback-list {
    margin-bottom: 20px;
}

.feedback-accordion {
    border: 1px solid #e8e8e8;
    border-radius: 8px;
    margin-bottom: 8px;
    overflow: hidden;
    background: #fff;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.feedback-accordion-header {
    padding: 12px 16px;
    background: #fafbfc;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-left: 4px solid #003366;
    transition: all 0.3s ease;
}

.feedback-accordion-header:hover {
    background: #f5f8fc;
}

.feedback-accordion-title {
    font-size: 14px;
    font-weight: 500;
    color: #003366;
    display: flex;
    align-items: center;
    gap: 8px;
}

.feedback-count {
    font-size: 12px;
    color: #666;
    background: #e8e8e8;
    padding: 2px 8px;
    border-radius: 10px;
}

.feedback-accordion-icon {
    font-size: 18px;
    transition: transform 0.3s ease;
}

.feedback-accordion.active .feedback-accordion-icon {
    transform: rotate(180deg);
}

.feedback-accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.feedback-accordion.active .feedback-accordion-content {
    max-height: 600px;
    overflow-y: auto;
}

.feedback-accordion-items {
    padding: 12px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 10px;
}

.feedback-item {
    background: #ffffff;
    border: 1px solid #e8e8e8;
    border-left: 3px solid #003366;
    padding: 10px 12px;
    border-radius: 6px;
    font-size: 13px;
    line-height: 1.5;
    color: #444;
    transition: all 0.3s ease;
}

.feedback-item:hover {
    background: #fafbfc;
    border-left-width: 4px;
}

.feedback-item.queue::before {
    content: "⏱️ ";
    margin-right: 6px;
}

.feedback-item.update::before {
    content: "🔄 ";
    margin-right: 6px;
}

.feedback-item.positive::before {
    content: "👍 ";
    margin-right: 6px;
}

.feedback-item.environment::before {
    content: "🏪 ";
    margin-right: 6px;
}

.feedback-item.location::before {
    content: "📍 ";
    margin-right: 6px;
}

.feedback-item.queue {
    border-left-color: #e74c3c;
    background: #fff9f9;
}

.feedback-item.queue:hover {
    background: #fff5f5;
}

.feedback-item.update {
    border-left-color: #f39c12;
    background: #fffcf5;
}

.feedback-item.update:hover {
    background: #fffbf0;
}

.feedback-item.positive {
    border-left-color: #27ae60;
    background: #f9fff9;
}

.feedback-item.positive:hover {
    background: #f0fff4;
}

.feedback-item.environment {
    border-left-color: #9b59b6;
    background: #faf9fc;
}

.feedback-item.environment:hover {
    background: #f5f3f7;
}

.feedback-item.location {
    border-left-color: #00A0E9;
    background: #f5fbff;
}

.feedback-item.location:hover {
    background: #e6f7ff;
}

/* 词云 */
.wordcloud-container {
    margin-top: 16px;
    padding: 16px;
    background: linear-gradient(135deg, #f5f8fc 0%, #ffffff 100%);
    border: 1px solid #e0e0e0;
    border-radius: 8px;
}

.wordcloud {
    text-align: center;
    padding: 20px 16px;
    line-height: 2;
}

.word {
    display: inline-block;
    margin: 8px 16px;
    color: #003366;
    font-weight: 600;
    transition: all 0.3s;
    cursor: pointer;
}

.word:hover {
    color: #00A0E9;
    transform: scale(1.1);
}

/* 页脚 */
.footer {
    background: #2c3e50;
    color: #ecf0f1;
    text-align: center;
    padding: 24px 20px 20px;
    margin-top: 24px;
}

.footer-logos {
    margin-bottom: 20px;
}

.footer-logo {
    height: 45px;
    object-fit: contain;
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(6px);
    padding: 10px 24px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 16px rgba(255, 255, 255, 0.15);
    transition: all 0.3s ease;
}

.footer-logo:hover {
    background: rgba(255, 255, 255, 0.98);
    border-color: rgba(255, 255, 255, 1);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(255, 255, 255, 0.2);
}

.footer-main {
    font-size: 14px;
    font-weight: 500;
    margin: 12px 0 8px;
}

.footer-team {
    font-size: 13px;
    color: #bdc3c7;
    margin: 8px 0;
}

.footer-info {
    font-size: 12px;
    color: #95a5a6;
    margin: 8px 0;
}

/* SWOT分析 */
.swot-container {
    margin: 16px 0;
    padding: 16px;
    background: #ffffff;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0,51,102,0.06);
}

.swot-container h3 {
    font-size: 16px;
    font-weight: 600;
    color: #003366;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid #f0f0f0;
}

.swot-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.swot-card {
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    padding: 12px;
    border-left-width: 3px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.swot-card.strength {
    border-left-color: #2ecc71;
    background: #f0fff4;
    box-shadow: 0 2px 8px rgba(46,204,113,0.15);
}

.swot-card.weakness {
    border-left-color: #e74c3c;
    background: #fff5f5;
}

.swot-card.opportunity {
    border-left-color: #3498db;
    background: #f0f9ff;
}

.swot-card.threat {
    border-left-color: #f39c12;
    background: #fffbf0;
}

.swot-card h4 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
    color: #2c3e50;
}

.swot-card ul {
    list-style: none;
}

.swot-card li {
    padding: 4px 0;
    font-size: 12px;
    line-height: 1.5;
    color: #555;
    padding-left: 14px;
    position: relative;
}

.swot-card li:before {
    content: '•';
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* 4P营销组合 */
.marketing-mix {
    margin: 40px 0;
    padding: 32px;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0,51,102,0.06);
}

.marketing-mix h3 {
    font-size: 20px;
    font-weight: 600;
    color: #003366;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid #f0f0f0;
}

.mix-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.mix-card {
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    padding: 20px;
    background: #fff;
}

.mix-card h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    color: #2c3e50;
    padding-bottom: 8px;
    border-bottom: 2px solid #ecf0f1;
}

.strategy-section {
    margin-bottom: 16px;
}

.strategy-section:last-child {
    margin-bottom: 0;
}

.strategy-section h5 {
    font-size: 14px;
    font-weight: 600;
    color: #555;
    margin-bottom: 8px;
}

.strategy-section ul {
    list-style: none;
}

.strategy-section li {
    padding: 4px 0;
    font-size: 13px;
    line-height: 1.5;
    color: #666;
    padding-left: 12px;
    position: relative;
}

.strategy-section li:before {
    content: '▸';
    position: absolute;
    left: 0;
    color: #003366;
}

/* STP分析 */
.stp-container {
    margin: 40px 0;
    padding: 32px;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0,51,102,0.06);
}

.stp-container h3 {
    font-size: 20px;
    font-weight: 600;
    color: #003366;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid #f0f0f0;
}

.stp-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.stp-card {
    border: 2px solid #003366;
    border-radius: 4px;
    padding: 18px;
    background: #f5f9fc;
}

.stp-card h4 {
    font-size: 14px;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 12px;
}

.stp-card ul {
    list-style: none;
}

.stp-card li {
    padding: 6px 0;
    font-size: 13px;
    line-height: 1.5;
    color: #555;
}

/* IMC时间线 */
.imc-container {
    margin: 40px 0;
    padding: 32px;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0,51,102,0.06);
}

.imc-container h3 {
    font-size: 20px;
    font-weight: 600;
    color: #003366;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid #f0f0f0;
}

.timeline-container {
    position: relative;
    padding-left: 40px;
}

.timeline-container:before {
    content: '';
    position: absolute;
    left: 15px;
    top: 10px;
    bottom: 10px;
    width: 2px;
    background: #e0e0e0;
}

.timeline-item {
    position: relative;
    margin-bottom: 24px;
}

.timeline-badge {
    position: absolute;
    left: -40px;
    width: 70px;
    height: 30px;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 600;
    color: #fff;
}

.timeline-badge.phase1 {
    background: #003366;
}

.timeline-badge.phase2 {
    background: #2ecc71;
}

.timeline-badge.phase3 {
    background: #9b59b6;
}

.timeline-content {
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    padding: 16px 20px;
    margin-left: 20px;
}

.timeline-content h4 {
    font-size: 15px;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 8px;
}

.timeline-content p {
    font-size: 13px;
    color: #666;
    margin-bottom: 10px;
}

.timeline-content ul {
    list-style: none;
}

.timeline-content li {
    padding: 4px 0;
    font-size: 13px;
    color: #555;
    padding-left: 16px;
    position: relative;
}

.timeline-content li:before {
    content: '→';
    position: absolute;
    left: 0;
    color: #003366;
}

/* ROI分析 */
.roi-container {
    margin: 40px 0;
    padding: 32px;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0,51,102,0.06);
}

.roi-container h3 {
    font-size: 20px;
    font-weight: 600;
    color: #003366;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid #f0f0f0;
}

.roi-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.roi-card {
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    padding: 20px;
    background: #fafafa;
}

.roi-card h4 {
    font-size: 15px;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 16px;
}

.roi-table {
    width: 100%;
    border-collapse: collapse;
}

.roi-table tr {
    border-bottom: 1px solid #e0e0e0;
}

.roi-table td {
    padding: 10px 0;
    font-size: 13px;
    color: #555;
}

.roi-table .amount {
    text-align: right;
    font-weight: 600;
    color: #e74c3c;
}

.roi-table .percent {
    text-align: right;
    font-weight: 600;
    color: #2ecc71;
}

.roi-table tr.total {
    border-top: 2px solid #2c3e50;
    border-bottom: 2px solid #2c3e50;
    font-weight: 600;
}

.roi-note {
    margin-top: 12px;
    padding: 10px;
    background: #fff;
    border-left: 3px solid #003366;
    font-size: 12px;
    color: #666;
}

/* 风险管理 */
.risk-box {
    margin: 30px 0;
    background: #fff9f0;
    border: 1px solid #f39c12;
    border-radius: 4px;
    padding: 20px;
}

.risk-box h3 {
    font-size: 16px;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 16px;
}

.risk-grid {
    display: grid;
    gap: 12px;
}

.risk-item {
    padding: 12px;
    background: #fff;
    border-left: 3px solid #f39c12;
    border-radius: 4px;
    font-size: 13px;
    line-height: 1.6;
}

.risk-item strong {
    color: #e74c3c;
}

.risk-item .solution {
    color: #27ae60;
    display: block;
    margin-top: 4px;
}

/* 市场细分 */
.segment-container {
    margin: 40px 0;
    padding: 32px;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0,51,102,0.06);
}

.segment-container h3 {
    font-size: 20px;
    font-weight: 600;
    color: #003366;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid #f0f0f0;
}

.segment-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.segment-card {
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    padding: 18px;
    background: #fff;
}

.segment-card h4 {
    font-size: 14px;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 10px;
}

.segment-desc {
    font-size: 12px;
    color: #888;
    margin-bottom: 12px;
    line-height: 1.5;
}

.segment-strategy {
    background: #f8f9fa;
    padding: 10px;
    border-radius: 4px;
    font-size: 13px;
    line-height: 1.5;
    color: #555;
}

.segment-strategy strong {
    color: #003366;
}

/* 行动计划的impact */
.impact {
    margin-top: 12px;
    padding: 10px 12px;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 4px;
    font-size: 12px;
    color: #555;
    font-style: italic;
    border-top: 1px dashed #ddd;
}

/* 通用标题样式 */
h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 20px;
    color: #003366;
}

h4 {
    font-size: 17px;
    font-weight: 600;
    color: #2c3e50;
}

/* 通用列表样式 */
ul li {
    line-height: 1.7;
    margin-bottom: 10px;
}

/* ROI表格优化 */
.roi-table td, .roi-table th {
    padding: 12px 16px;
}

.roi-table tr:hover {
    background: #f8f9fa;
}

/* 响应式 - 超宽屏优化 */
@media (min-width: 1600px) {
    .container {
        max-width: 1500px;
    }
    
    .chart-container:only-child {
        max-width: 800px;
        margin: 0 auto;
    }
}

/* 响应式 - 中等屏幕 */
@media (max-width: 1200px) {
    .kpi-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .chart-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 响应式 - 小屏幕 */
@media (max-width: 900px) {
    .kpi-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .chart-grid {
        grid-template-columns: 1fr;
    }
    
    .swot-grid,
    .mix-grid,
    .stp-grid,
    .segment-grid,
    .roi-grid {
        grid-template-columns: 1fr;
    }
}

/* 响应式 - 移动端 */
@media (max-width: 768px) {
    .kpi-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .tabs {
        overflow-x: auto;
    }
    
    .tab-btn {
        padding: 10px 14px;
        font-size: 13px;
    }
    
    .nav-left {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .logo-badge {
        width: 40px;
        height: 40px;
    }
    
    .tab-content {
        padding: 12px;
    }
}

/* 滚动条美化 */
.feedback-list::-webkit-scrollbar {
    width: 8px;
}

.feedback-list::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

.feedback-list::-webkit-scrollbar-thumb {
    background: #bbb;
    border-radius: 4px;
}

.feedback-list::-webkit-scrollbar-thumb:hover {
    background: #999;
}