/* ==================== 基础样式 ==================== */
:root {
    --primary-color: #1a73e8;
    --secondary-color: #0d47a1;
    --accent-color: #ff6b35;
    --success-color: #2e7d32;
    --warning-color: #f57c00;
    --danger-color: #c62828;
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --border-color: #334155;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ==================== 导航栏 ==================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: 15px 0;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--primary-color);
}

.last-update {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* ==================== Hero区域 ==================== */
.hero {
    padding: 140px 20px 80px;
    background: linear-gradient(180deg, rgba(26, 115, 232, 0.1) 0%, transparent 100%);
    text-align: center;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 15px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    font-size: 1.4rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.hero-meta {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
}

.tag {
    background: rgba(26, 115, 232, 0.2);
    color: var(--primary-color);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.core-conclusion {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 30px;
    text-align: left;
}

.core-conclusion h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.core-conclusion p {
    color: var(--text-secondary);
    margin-bottom: 10px;
}

/* ==================== 通用区块样式 ==================== */
.section {
    padding: 80px 0;
}

.section-title {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-primary);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 2px;
}

.section-intro {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 40px;
    max-width: 900px;
}

.highlight-text {
    color: var(--primary-color);
    font-size: 1.1rem;
    margin-bottom: 30px;
    padding: 15px 20px;
    background: rgba(26, 115, 232, 0.1);
    border-left: 4px solid var(--primary-color);
    border-radius: 0 8px 8px 0;
}

/* ==================== 核心结论卡片 ==================== */
.conclusion-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin: 40px 0;
}

.conclusion-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 25px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.conclusion-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.conclusion-card.priority-high {
    border-top: 4px solid #22c55e;
}

.conclusion-card.priority-medium {
    border-top: 4px solid #f59e0b;
}

.conclusion-card.priority-low {
    border-top: 4px solid #3b82f6;
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.conclusion-card h3 {
    color: var(--text-primary);
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.conclusion-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 15px;
}

.keywords {
    display: inline-block;
    background: rgba(26, 115, 232, 0.2);
    color: var(--primary-color);
    padding: 6px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
}

/* ==================== 数据表格 ==================== */
.data-table {
    width: 100%;
    border-collapse: collapse;
    margin: 30px 0;
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
}

.data-table thead {
    background: rgba(26, 115, 232, 0.2);
}

.data-table th {
    padding: 15px 20px;
    text-align: left;
    font-weight: 600;
    color: var(--primary-color);
    font-size: 0.9rem;
}

.data-table td {
    padding: 15px 20px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.data-table tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

.data-table .highlight-row {
    background: rgba(34, 197, 94, 0.1);
}

.data-table .critical-row {
    background: rgba(239, 68, 68, 0.1);
}

/* ==================== 市场和统计 ==================== */
.market-forecast {
    margin: 40px 0;
}

.market-forecast h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.market-stat {
    text-align: center;
    padding: 30px;
    background: var(--card-bg);
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

.big-number {
    font-size: 4rem;
    font-weight: 800;
    color: var(--primary-color);
    display: block;
}

.label {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-top: 10px;
}

.market-breakdown, .software-breakdown {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 20px;
}

.breakdown-item {
    text-align: center;
}

.percent {
    font-size: 2rem;
    font-weight: 700;
    color: var(--success-color);
    display: block;
}

/* ==================== subsection样式 ==================== */
.subsection {
    margin: 50px 0;
}

.subsection-title {
    font-size: 1.6rem;
    color: var(--text-primary);
    margin-bottom: 25px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--border-color);
}

/* ==================== 材料和设备卡片 ==================== */
.materials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 25px;
}

.material-card, .equipment-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}

.material-card:hover, .equipment-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background: rgba(26, 115, 232, 0.15);
    border-bottom: 1px solid var(--border-color);
}

.material-name {
    font-weight: 700;
    font-size: 1.1rem;
}

.market-share {
    font-size: 0.85rem;
    color: var(--primary-color);
    background: rgba(26, 115, 232, 0.2);
    padding: 4px 10px;
    border-radius: 12px;
}

.card-content {
    padding: 20px;
}

.card-content p {
    color: var(--text-secondary);
    margin-bottom: 15px;
    font-size: 0.95rem;
}

.card-content strong {
    color: var(--text-primary);
}

.leaders {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin: 20px 0;
}

.leaders h4 {
    color: var(--text-primary);
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.leaders ol {
    list-style: none;
    padding: 0;
}

.leaders li {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
    padding-left: 15px;
    position: relative;
}

.leaders li::before {
    content: counter(list-counter);
    counter-increment: list-counter;
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 600;
}

.leaders ol {
    counter-reset: list-counter;
}

.bottleneck {
    padding: 12px 15px;
    background: rgba(245, 158, 11, 0.15);
    border-left: 3px solid #f59e0b;
    border-radius: 0 8px 8px 0;
    margin: 15px 0;
    font-size: 0.9rem;
}

.bottleneck.critical {
    background: rgba(239, 68, 68, 0.15);
    border-left-color: #ef4444;
}

.bottleneck .label {
    color: #f59e0b;
    font-weight: 600;
}

.bottleneck.critical .label {
    color: #ef4444;
}

.investment-priority {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}

.stars {
    color: #fbbf24;
    font-size: 1.1rem;
}

.equipment-table {
    margin: 20px 0;
    overflow-x: auto;
}

.share {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.bottleneck-cell {
    color: #ef4444;
}

/* ==================== 技术逻辑图 ==================== */
.tech-diagram {
    margin: 30px 0;
    padding: 20px;
    background: rgba(26, 115, 232, 0.05);
    border: 1px dashed var(--border-color);
    border-radius: 12px;
}

.tech-diagram h4 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.diagram-box {
    background: var(--card-bg);
    border-radius: 8px;
    padding: 20px;
    overflow-x: auto;
}

.diagram-box pre {
    font-family: 'SF Mono', Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.8;
    white-space: pre-wrap;
}

.tech-diagram.inline {
    padding: 15px;
}

.tech-diagram.inline pre {
    font-size: 0.9rem;
}

/* ==================== 芯片分类卡片 ==================== */
.chip-market-overview {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    margin: 30px 0;
    align-items: center;
}

.hardware-overview {
    margin: 30px 0;
}

.design-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin: 20px 0;
}

.eda-card, .ip-card, .architecture-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
}

.eda-card h4, .ip-card h4, .architecture-card h4 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.global-china {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.global, .china {
    padding: 0;
}

.global h5, .china h5 {
    color: var(--text-primary);
    font-size: 0.9rem;
    margin-bottom: 10px;
    padding-bottom: 5px;
    border-bottom: 1px solid var(--border-color);
}

.global-china ol {
    list-style: none;
    padding: 0;
    counter-reset: list-counter;
}

.global-china li {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 5px;
}

.manufacturing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 25px;
}

.fab-card, .packaging-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 25px;
}

.fab-card h4, .packaging-card h4 {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.sub-info {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.priority {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
    font-weight: 600;
}

.chip-types-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

.chip-type-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    position: relative;
}

.chip-badge {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.chip-type-card.training .chip-badge {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.chip-type-card.inference .chip-badge {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.chip-examples {
    margin: 10px 0;
}

.chip-model {
    font-size: 0.9rem;
    color: var(--primary-color);
    font-weight: 500;
}

.chip-type-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 10px;
}

.share-bar {
    height: 6px;
    background: var(--border-color);
    border-radius: 3px;
    margin-top: 15px;
    overflow: hidden;
}

.share-bar .fill {
    height: 100%;
    background: var(--primary-color);
    border-radius: 3px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: 8px;
    font-size: 0.7rem;
    color: white;
}

.hbm-section {
    margin-top: 30px;
    padding: 25px;
    background: var(--card-bg);
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

.hbm-section h4 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.hbm-market .global-china {
    margin: 15px 0;
}

/* ==================== 硬件配套区域 ==================== */
.interconnect-grid, .board-grid, .server-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin: 20px 0;
}

.interconnect-card, .board-item, .server-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
}

.interconnect-card h4, .board-item h4, .server-card h4 {
    color: var(--primary-color);
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.interconnect-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.highlight-box {
    background: rgba(34, 197, 94, 0.15);
    border-left: 3px solid #22c55e;
    padding: 10px 15px;
    border-radius: 0 8px 8px 0;
    margin: 15px 0;
    font-size: 0.9rem;
    color: #22c55e;
}

.leaders {
    margin: 15px 0;
}

.leaders > div {
    margin-bottom: 10px;
}

.leaders > div h5 {
    color: var(--text-primary);
    font-size: 0.85rem;
    margin-bottom: 8px;
}

.leaders ol {
    list-style: none;
    padding: 0;
    counter-reset: list-counter;
}

.leaders li {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

/* ==================== 软件区域 ==================== */
.software-overview {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    align-items: center;
    margin: 30px 0;
}

.software-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin: 20px 0;
}

.software-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 25px;
}

.software-card h4 {
    color: var(--primary-color);
    font-size: 1.1rem;
    margin-bottom: 15px;
}

.software-card .sub-info {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 15px;
}

/* ==================== 思维导图区域 ==================== */
.mindmap-section {
    background: var(--card-bg);
}

.mindmap-controls {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-bottom: 20px;
}

.mindmap-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background 0.3s;
}

.mindmap-btn:hover {
    background: var(--secondary-color);
}

.mindmap-hint {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-left: 15px;
}

.mindmap-container {
    background: white;
    border-radius: 12px;
    padding: 30px;
    overflow: auto;
    min-height: 500px;
}

.mermaid {
    display: flex;
    justify-content: center;
}

.mindmap-legend {
    display: flex;
    gap: 30px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.legend-color {
    width: 20px;
    height: 20px;
    border-radius: 4px;
}

/* ==================== 数据区域 ==================== */
.data-section {
    background: linear-gradient(180deg, transparent 0%, rgba(26, 115, 232, 0.05) 100%);
}

.data-controls {
    display: flex;
    gap: 10px;
    margin-bottom: 25px;
    flex-wrap: wrap;
}

.data-btn {
    background: var(--card-bg);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s;
}

.data-btn:hover, .data-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

#stock-data-container {
    margin: 20px 0;
}

.stock-table {
    width: 100%;
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
}

.stock-table th {
    background: rgba(26, 115, 232, 0.2);
    padding: 15px;
    text-align: left;
    font-weight: 600;
    color: var(--primary-color);
}

.stock-table td {
    padding: 12px 15px;
    border-bottom: 1px solid var(--border-color);
}

.up {
    color: #22c55e;
}

.down {
    color: #ef4444;
}

.fund-flow-summary {
    margin-top: 40px;
}

.fund-flow-summary h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.fund-flow-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.fund-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
}

.fund-item .sector-name {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.fund-item .flow-amount {
    font-size: 1.5rem;
    font-weight: 700;
}

.fund-item .flow-amount.positive {
    color: #22c55e;
}

.fund-item .flow-amount.negative {
    color: #ef4444;
}

.rotation-trend {
    margin-top: 40px;
}

.rotation-trend h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.rotation-timeline {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.timeline-item {
    display: flex;
    align-items: center;
    gap: 15px;
    background: var(--card-bg);
    padding: 15px 20px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.timeline-item.hot {
    border-left: 4px solid #f59e0b;
}

.timeline-item .rank {
    background: var(--primary-color);
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.timeline-item .sector {
    font-weight: 600;
    flex: 1;
}

.timeline-item .trend {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.rotation-note {
    margin-top: 20px;
    padding: 20px;
    background: rgba(245, 158, 11, 0.1);
    border-radius: 12px;
}

.rotation-note p {
    color: var(--text-secondary);
    margin-bottom: 10px;
}

/* ==================== 技术耦合总图 ==================== */
.coupling-section {
    background: var(--card-bg);
}

.coupling-diagram {
    background: white;
    border-radius: 12px;
    padding: 30px;
    margin: 30px 0;
}

.tech-coupling-note {
    margin-top: 30px;
    padding: 25px;
    background: var(--bg-color);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.tech-coupling-note h4 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.formula {
    background: linear-gradient(135deg, rgba(26, 115, 232, 0.2) 0%, rgba(118, 75, 162, 0.2) 100%);
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    font-size: 1.2rem;
    margin-bottom: 20px;
}

.tech-coupling-note ul {
    list-style: none;
    padding: 0;
}

.tech-coupling-note li {
    padding: 10px 0;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

.tech-coupling-note li:last-child {
    border-bottom: none;
}

.tech-coupling-note li strong {
    color: var(--text-primary);
}

.key-insight {
    margin-top: 20px;
    padding: 20px;
    background: rgba(34, 197, 94, 0.1);
    border-left: 4px solid #22c55e;
    border-radius: 0 12px 12px 0;
}

/* ==================== 投资区域 ==================== */
.investment-section {
    background: linear-gradient(180deg, transparent 0%, rgba(118, 75, 162, 0.05) 100%);
}

.investment-tiers {
    display: flex;
    flex-direction: column;
    gap: 25px;
    margin: 30px 0;
}

.tier {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 25px;
}

.tier-1 {
    border-left: 5px solid #22c55e;
}

.tier-2 {
    border-left: 5px solid #f59e0b;
}

.tier-3 {
    border-left: 5px solid #3b82f6;
}

.tier-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.tier-badge {
    background: var(--primary-color);
    color: white;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.tier-name {
    font-size: 1.2rem;
    font-weight: 600;
}

.tier-list {
    list-style: none;
    padding: 0;
}

.tier-list li {
    padding: 10px 0;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

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

.investment-strategies {
    margin-top: 50px;
}

.investment-strategies h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.strategy-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.strategy-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 25px;
}

.strategy-card h4 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.strategy-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.strategy-card ul {
    list-style: none;
    padding: 0;
}

.strategy-card li {
    color: var(--text-secondary);
    padding: 5px 0;
    font-size: 0.9rem;
}

/* ==================== 风险提示 ==================== */
.risks-section {
    background: var(--card-bg);
}

.risks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.risk-card {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
}

.risk-icon {
    font-size: 2rem;
    margin-bottom: 15px;
}

.risk-card h4 {
    color: var(--text-primary);
    margin-bottom: 10px;
}

.risk-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ==================== 页脚 ==================== */
.footer {
    background: var(--bg-color);
    border-top: 1px solid var(--border-color);
    padding: 40px 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 30px;
}

.footer-info p {
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.disclaimer {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 15px;
}

.footer-links {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .section-title {
        font-size: 1.6rem;
    }

    .conclusion-grid,
    .materials-grid,
    .manufacturing-grid {
        grid-template-columns: 1fr;
    }

    .global-china {
        grid-template-columns: 1fr;
    }

    .chip-market-overview,
    .software-overview {
        flex-direction: column;
    }

    .market-breakdown,
    .software-breakdown {
        flex-direction: column;
        gap: 15px;
    }

    .data-controls {
        flex-direction: column;
    }

    .mindmap-controls {
        flex-direction: column;
    }

    .mindmap-legend {
        flex-direction: column;
    }

    .footer-content {
        flex-direction: column;
    }
}

/* ==================== 动画 ==================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section {
    animation: fadeIn 0.6s ease-out;
}

/* ==================== 滚动条美化 ==================== */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-color);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}