/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #ff6b35;
    --secondary-color: #ff8f6b;
    --bg-dark: #000000;
    --bg-light: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --border-color: #333333;
    --card-bg: #0f0f0f;
    --highlight-bg: rgba(255, 107, 53, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    scroll-behavior: smooth;
}

/* Password Protection */
.password-overlay {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    height: 100% !important;
    background: rgba(0, 0, 0, 0.95) !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    z-index: 10000 !important;
}

.password-overlay[style*="display: none"] {
    display: none !important;
}

.password-box {
    background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);
    padding: 3rem;
    border-radius: 20px;
    border: 2px solid var(--primary-color);
    text-align: center;
    max-width: 400px;
    width: 90%;
}

.password-box h2 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.password-box p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

#password-input {
    width: 100%;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: white;
    font-size: 1rem;
    margin-bottom: 1rem;
}

#password-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

#password-submit {
    width: 100%;
    padding: 1rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

#password-submit:hover {
    background: #ff8c42;
    transform: translateY(-2px);
}

.password-error {
    color: #ff5252;
    margin-top: 1rem;
    font-size: 0.9rem;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    letter-spacing: 2px;
}

.nav-menu {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

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

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

/* Container and Sections */
.section {
    padding: 6rem 2rem;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.section-dark {
    background-color: var(--bg-light);
}

.section-cover {
    background: linear-gradient(135deg, #000000 0%, #1a0a00 100%);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    text-align: center;
}

.title-link {
    font-size: 0.85rem;
    color: #888;
    text-decoration: none;
    margin-left: 1rem;
    padding: 0.3rem 0.8rem;
    border: 1px solid #444;
    border-radius: 15px;
    transition: all 0.3s ease;
    display: inline-block;
    font-weight: normal;
    opacity: 0.7;
}

.title-link:hover {
    color: var(--primary-color);
    border-color: var(--primary-color);
    opacity: 1;
}

.section-lead {
    font-size: 1.2rem;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 3rem;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

/* Cover Section */
.cover-content {
    text-align: center;
}

.cover-title {
    font-size: 5rem;
    font-weight: bold;
    color: var(--primary-color);
    letter-spacing: 4px;
    margin-bottom: 1rem;
}

.cover-subtitle {
    font-size: 1.8rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.cover-meta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 2rem;
}

.cover-badge {
    background-color: var(--primary-color);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: bold;
}

.cover-contact {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

.cover-device-hint {
    font-size: 0.9rem;
    color: #888;
    margin-top: 2rem;
    padding: 0.8rem 1.5rem;
    background: rgba(255, 107, 53, 0.1);
    border: 1px solid rgba(255, 107, 53, 0.3);
    border-radius: 12px;
    display: inline-block;
}

/* Summary Grid */
.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.summary-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    transition: transform 0.3s, border-color 0.3s;
}

.summary-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.summary-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

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

.summary-card li {
    margin-bottom: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Simple Bullet Points Style */
.simple-content {
    max-width: 1000px;
    margin: 3rem auto;
}

.summary-bullets {
    list-style: none;
    padding: 0;
    counter-reset: summary-counter;
}

.summary-bullets li {
    font-size: 1.15rem;
    line-height: 1.9;
    margin-bottom: 2rem;
    color: var(--text-secondary);
    padding: 1.5rem;
    padding-left: 4rem;
    position: relative;
    background: rgba(255, 107, 53, 0.05);
    border-radius: 8px;
    border-left: 3px solid var(--primary-color);
    counter-increment: summary-counter;
}

.summary-bullets li:before {
    content: counter(summary-counter);
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: bold;
    width: 2rem;
    height: 2rem;
    background: rgba(255, 107, 53, 0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.summary-bullets li strong {
    color: var(--primary-color);
    font-size: 1.2rem;
    display: block;
    margin-bottom: 0.5rem;
}

/* Architecture Layout with Product Vision */
.architecture-layout {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 3rem;
    align-items: start;
}

.architecture-text {
    /* 左侧文字 */
}

.product-vision {
    /* 右侧可视化 */
}

.vision-container {
    display: flex;
    align-items: center;
    gap: 30px;
}

.vision-box {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 15px 50px rgba(255,255,255,0.1);
    flex: 1;
}

.vision-box.traditional {
    border-top: 4px solid #e74c3c;
}

.vision-box.optima {
    border-top: 4px solid var(--primary-color);
}

.vision-title {
    font-size: 1.3rem;
    margin-bottom: 20px;
    text-align: center;
    color: #333;
}

.vision-flow-item {
    background: #f8f9fa;
    padding: 15px;
    margin: 12px 0;
    border-radius: 10px;
    border-left: 3px solid var(--primary-color);
    font-size: 0.95rem;
    line-height: 1.6;
    color: #333;
}

.vision-box.traditional .vision-flow-item {
    border-left-color: #e74c3c;
}

.vision-arrow {
    text-align: center;
    font-size: 24px;
    color: #666;
    margin: 8px 0;
}

.vision-stats {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 2px dashed #ddd;
}

.vision-stat-item {
    display: flex;
    align-items: center;
    margin: 10px 0;
    font-size: 0.9rem;
    color: #333;
}

.vision-stat-icon {
    font-size: 20px;
    margin-right: 10px;
}

.vision-arrow-middle {
    font-size: 60px;
    color: var(--primary-color);
    text-shadow: 0 4px 10px rgba(255,107,53,0.5);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.vision-ai-agents {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin: 15px 0;
    flex-wrap: wrap;
}

.vision-agent-box {
    background: linear-gradient(135deg, var(--primary-color) 0%, #ff8c42 100%);
    color: white;
    padding: 12px 8px;
    border-radius: 8px;
    text-align: center;
    font-size: 0.75rem;
    flex: 1;
    min-width: 60px;
    box-shadow: 0 3px 8px rgba(0,0,0,0.2);
}

.vision-agent-emoji {
    font-size: 20px;
    display: block;
    margin-bottom: 4px;
}

.vision-highlight {
    color: var(--primary-color);
    font-weight: bold;
}

.vision-highlight-red {
    color: #e74c3c;
    font-weight: bold;
}

/* Competitive Matrix Styles */
.comparison-table {
    background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);
    border-radius: 20px;
    padding: 40px;
    overflow: hidden;
    overflow-x: auto;
}

.comparison-table table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.comparison-table th {
    background: linear-gradient(135deg, #2a2a2a 0%, #3a3a3a 100%);
    padding: 25px 20px;
    text-align: center;
    font-size: 20px;
    font-weight: bold;
    border-bottom: 3px solid #ff6b35;
}

.comparison-table th:first-child {
    text-align: left;
    color: #ccc;
    font-size: 18px;
    width: 200px;
}

.comparison-table th.shopify {
    color: #95BF47;
}

.comparison-table th.aliexpress {
    color: #FF6A00;
}

.comparison-table th.optima {
    color: #ff6b35;
    background: linear-gradient(135deg, #3a2a1a 0%, #4a3a2a 100%);
    position: relative;
}

.comparison-table th.optima::after {
    content: '⭐ 我们';
    position: absolute;
    top: -10px;
    right: 20px;
    background: #ff6b35;
    color: white;
    padding: 4px 12px;
    border-radius: 10px;
    font-size: 12px;
    font-weight: bold;
}

.comparison-table td {
    padding: 25px 20px;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 16px;
    transition: background 0.3s ease;
}

.comparison-table td:first-child {
    text-align: left;
    font-weight: 500;
    color: #ccc;
    background: rgba(255, 255, 255, 0.02);
}

.comparison-table tr:hover td {
    background: rgba(255, 107, 53, 0.05);
}

.comparison-table .good {
    color: #4CAF50;
    font-weight: bold;
}

.comparison-table .bad {
    color: #ff5252;
}

.comparison-table .neutral {
    color: #FFA726;
}

.comparison-table .excellent {
    color: #ff6b35;
    font-weight: bold;
    font-size: 18px;
}

.comparison-table .highlight-cell {
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.1) 0%, rgba(255, 107, 53, 0.05) 100%);
}

.comparison-table .checkmark {
    color: #4CAF50;
    font-size: 24px;
}

.comparison-table .crossmark {
    color: #ff5252;
    font-size: 24px;
}

.summary-box {
    margin-top: 40px;
    background: linear-gradient(135deg, #2a1a0a 0%, #3a2a1a 100%);
    border: 2px solid #ff6b35;
    border-radius: 15px;
    padding: 30px;
}

.summary-title {
    font-size: 24px;
    color: #ff6b35;
    font-weight: bold;
    margin-bottom: 20px;
    text-align: center;
}

.summary-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.summary-item {
    background: rgba(255, 107, 53, 0.1);
    border-radius: 10px;
    padding: 20px;
    text-align: center;
}

.summary-item-icon {
    font-size: 32px;
    margin-bottom: 10px;
}

.summary-item-title {
    color: #ff6b35;
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 10px;
}

.summary-item-desc {
    color: #ccc;
    font-size: 14px;
    line-height: 1.6;
}

/* Two Column Layout */
.two-column-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.column-card {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    border-left: 4px solid var(--primary-color);
}

.column-title {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 2rem;
}

/* Problem Grid */
.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.problem-card {
    background-color: transparent;
    border-left: none;
    padding: 1rem 0;
    border-radius: 0;
    border-bottom: 1px solid var(--border-color);
}

.problem-card:last-child {
    border-bottom: none;
}

.problem-number {
    display: inline-block;
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    text-align: center;
    line-height: 40px;
    font-size: 1.2rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

.problem-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

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

.problem-card li {
    margin-bottom: 0.8rem;
    color: var(--text-secondary);
    padding-left: 1.5rem;
    position: relative;
}

.problem-card li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

/* Opportunity Grid */
.opportunity-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.opportunity-card {
    background: transparent;
    border: none;
    border-radius: 0;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
    transition: none;
}

.opportunity-card:last-child {
    border-bottom: none;
}

.opportunity-card:hover {
    transform: none;
    border-color: var(--border-color);
}

.opportunity-card h3 {
    font-size: 1.3rem;
    margin: 1rem 0;
    color: var(--primary-color);
}

.opportunity-card p {
    color: var(--text-secondary);
    margin-bottom: 0.8rem;
}

.highlight {
    color: var(--primary-color);
    font-weight: bold;
}

/* Market Opportunity Visualization */
.market-opportunity-container {
    width: 100%;
}

.opportunity-grid-viz {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 20px;
}

.opportunity-card-viz {
    background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);
    border-radius: 12px;
    padding: 24px;
    position: relative;
    border-left: 3px solid #ff6b35;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.opportunity-card-viz:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 107, 53, 0.2);
}

.card-icon-viz {
    font-size: 32px;
    margin-bottom: 12px;
    display: block;
}

.card-title-viz {
    font-size: 15px;
    font-weight: bold;
    color: #ff6b35;
    margin-bottom: 10px;
    line-height: 1.3;
}

.card-value-viz {
    font-size: 34px;
    font-weight: bold;
    color: #ff6b35;
    margin-bottom: 8px;
    text-shadow: 0 0 12px rgba(255, 107, 53, 0.4);
}

.card-desc-viz {
    font-size: 13px;
    color: #aaa;
    line-height: 1.6;
}

.highlight-viz {
    color: #4CAF50;
    font-weight: bold;
}

/* 时间窗口 */
.timeline-section-viz {
    background: linear-gradient(135deg, #2a1a0a 0%, #3a2a1a 100%);
    border: 2px solid #ff6b35;
    border-radius: 12px;
    padding: 24px;
    text-align: center;
    position: relative;
    overflow: hidden;
    margin-bottom: 20px;
}

.timeline-title-viz {
    font-size: 16px;
    font-weight: bold;
    color: #ff6b35;
    margin-bottom: 18px;
}

.timeline-bar-viz {
    position: relative;
    height: 55px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 15px;
}

.timeline-window-viz {
    position: absolute;
    left: 20%;
    width: 40%;
    height: 100%;
    background: linear-gradient(90deg, rgba(255, 107, 53, 0.3), rgba(255, 107, 53, 0.6), rgba(255, 107, 53, 0.3));
    border-left: 2px solid #ff6b35;
    border-right: 2px solid #ff6b35;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: pulse-viz 2s ease-in-out infinite;
}

@keyframes pulse-viz {
    0%, 100% { opacity: 0.8; }
    50% { opacity: 1; }
}

.window-label-viz {
    font-size: 14px;
    font-weight: bold;
    color: white;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.8);
}

.timeline-labels-viz {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: #888;
}

.timeline-label-viz {
    flex: 1;
    text-align: center;
}

.timeline-label-viz.active-viz {
    color: #ff6b35;
    font-weight: bold;
}

.urgency-badge-viz {
    position: absolute;
    top: 12px;
    right: 12px;
    background: #ff6b35;
    color: white;
    padding: 6px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: bold;
    animation: blink-viz 1.5s ease-in-out infinite;
}

@keyframes blink-viz {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* 市场扩张路径 */
.expansion-section-viz {
    background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);
    border-radius: 12px;
    padding: 24px;
}

.expansion-title-viz {
    font-size: 15px;
    font-weight: bold;
    color: #ff6b35;
    margin-bottom: 18px;
    text-align: center;
}

.expansion-path-viz {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.expansion-stage-viz {
    flex: 1;
    text-align: center;
    position: relative;
}

.expansion-icon-viz {
    font-size: 28px;
    margin-bottom: 8px;
}

.expansion-name-viz {
    font-size: 14px;
    font-weight: bold;
    color: #ff6b35;
    margin-bottom: 5px;
}

.expansion-value-viz {
    font-size: 20px;
    font-weight: bold;
    color: #4CAF50;
    margin-bottom: 4px;
}

.expansion-desc-viz {
    font-size: 11px;
    color: #888;
    line-height: 1.4;
}

.arrow-right-viz {
    font-size: 20px;
    color: #ff6b35;
}

/* Solution Grid */
.solution-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.solution-card {
    background-color: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s;
}

.solution-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.2);
}

.solution-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.solution-subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-style: italic;
    margin-bottom: 1rem;
}

.solution-card ul {
    list-style: none;
    text-align: left;
}

.solution-card li {
    margin-bottom: 0.8rem;
    color: var(--text-secondary);
}

/* Architecture Layers */
.architecture-layers {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.layer {
    background-color: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    position: relative;
}

.layer-badge {
    position: absolute;
    top: -15px;
    left: 2rem;
    background-color: var(--primary-color);
    color: white;
    padding: 0.3rem 1rem;
    border-radius: 20px;
    font-weight: bold;
    font-size: 0.9rem;
}

.layer h3 {
    margin-top: 1rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.layer ul {
    list-style: none;
}

.layer li {
    margin-bottom: 0.8rem;
    color: var(--text-secondary);
    padding-left: 1.5rem;
    position: relative;
}

.layer li:before {
    content: "▸";
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

/* Demo Features */
.demo-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.demo-feature {
    text-align: center;
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.demo-feature h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.demo-feature p {
    color: var(--text-secondary);
}

/* Charts */
.chart-container {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    min-height: 400px;
}

/* Business Model */
.business-cards-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
}

.business-pricing-bottom {
    margin-top: 3rem;
}

.business-card {
    background-color: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    position: relative;
}

.business-badge {
    position: absolute;
    top: -15px;
    right: 2rem;
    background-color: var(--primary-color);
    color: white;
    padding: 0.3rem 1rem;
    border-radius: 20px;
    font-weight: bold;
    font-size: 0.9rem;
}

.business-card h3 {
    margin-top: 1rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

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

.business-card li {
    margin-bottom: 0.8rem;
    color: var(--text-secondary);
}

/* Competition */
.competition-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.competition-card {
    background-color: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.3s;
}

.competition-card.highlight {
    border-color: var(--primary-color);
    background-color: var(--highlight-bg);
}

.competition-card.strategy {
    grid-column: 1 / -1;
}

.competition-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.comp-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.competition-card h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

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

.competition-card li {
    margin-bottom: 0.8rem;
    color: var(--text-secondary);
}

/* GTM Strategy Visualization */
.gtm-container {
    width: 100%;
}

.gtm-phase-card {
    background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 15px;
    position: relative;
    border-left: 4px solid #ff6b35;
    box-shadow: 0 5px 20px rgba(255, 107, 53, 0.15);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.gtm-phase-card:hover {
    transform: translateX(5px);
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.25);
}

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

.gtm-phase-number {
    background: linear-gradient(135deg, #ff6b35 0%, #ff8c42 100%);
    color: white;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    font-weight: bold;
    margin-right: 15px;
    box-shadow: 0 3px 10px rgba(255, 107, 53, 0.4);
}

.gtm-phase-title {
    flex: 1;
}

.gtm-phase-name {
    color: #ff6b35;
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 3px;
}

.gtm-phase-time {
    color: #999;
    font-size: 13px;
}

.gtm-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-top: 15px;
}

.gtm-metric-box {
    background: rgba(255, 107, 53, 0.1);
    border: 1px solid rgba(255, 107, 53, 0.3);
    border-radius: 10px;
    padding: 12px;
    text-align: center;
}

.gtm-metric-value {
    color: #ff6b35;
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 3px;
}

.gtm-metric-label {
    color: #ccc;
    font-size: 12px;
}

.gtm-location {
    color: #fff;
    font-size: 14px;
    margin-top: 12px;
    padding: 10px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    display: flex;
    align-items: center;
}

.gtm-location-icon {
    font-size: 16px;
    margin-right: 8px;
}

.gtm-arrow-connector {
    text-align: center;
    color: #ff6b35;
    font-size: 30px;
    margin: -5px 0;
}

.gtm-phase-card.gtm-phase-1 {
    border-left-color: #ff6b35;
}

.gtm-phase-card.gtm-phase-2 {
    border-left-color: #ff8c42;
}

.gtm-phase-card.gtm-phase-3 {
    border-left-color: #ffa94d;
}

.gtm-growth-label {
    position: absolute;
    top: 15px;
    right: 15px;
    background: linear-gradient(135deg, #ff6b35 0%, #ff8c42 100%);
    color: white;
    padding: 6px 12px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: bold;
}


/* Team Grid */
.team-section-title {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin: 2rem 0 1.5rem;
    text-align: center;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.team-card {
    background-color: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s;
}

.team-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
}

.team-card.advisor {
    background: linear-gradient(135deg, var(--card-bg) 0%, #1a0a00 100%);
}

.team-card h4 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.team-role {
    color: var(--primary-color);
    font-weight: bold;
    margin-bottom: 1rem;
}

.team-desc {
    color: var(--text-secondary);
    line-height: 1.6;
    text-align: left;
}

/* Funding Grid */
.funding-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.funding-card {
    background-color: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    position: relative;
}

.funding-percent {
    font-size: 3rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.funding-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.funding-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    text-align: left;
}

/* Financial Highlights */
.financial-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.highlight-card {
    background-color: var(--card-bg);
    border: 2px solid var(--primary-color);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
}

.highlight-number {
    font-size: 3rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.highlight-label {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

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

/* Closing Section */
.closing-content {
    text-align: center;
    max-width: 1200px;
    margin: 0 auto;
}

.closing-icon {
    font-size: 3rem;
    margin-bottom: 3rem;
    opacity: 0.8;
}

.closing-quote-en {
    font-size: 2.5rem;
    line-height: 1.6;
    margin-bottom: 3rem;
    color: white;
}

.closing-quote-en p {
    margin-bottom: 0.5rem;
}

.highlight-orange {
    color: var(--primary-color);
    font-weight: bold;
}

.closing-divider {
    width: 100px;
    height: 3px;
    background: var(--primary-color);
    margin: 3rem auto;
}

.closing-quote-zh {
    font-size: 1.5rem;
    line-height: 1.8;
    margin-bottom: 4rem;
    color: var(--text-secondary);
}

.closing-quote-zh p {
    margin-bottom: 0.3rem;
}

.closing-branding {
    margin-top: 5rem;
}

.closing-logo {
    font-size: 3rem;
    font-weight: bold;
    color: var(--primary-color);
    letter-spacing: 8px;
    margin-bottom: 1rem;
}

.closing-tagline {
    font-size: 1.2rem;
    color: var(--text-secondary);
    letter-spacing: 2px;
}

.closing-contact {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.closing-contact p {
    font-size: 0.95rem;
    color: #888;
    line-height: 1.8;
}

.closing-contact a {
    color: #888;
    text-decoration: none;
    transition: color 0.3s ease;
}

.closing-contact a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    /* Password Protection Mobile */
    .password-box {
        padding: 2rem 1.5rem;
        width: 90%;
        max-width: 340px;
    }

    .password-box h2 {
        font-size: 1.5rem;
    }

    .password-box p {
        font-size: 0.9rem;
    }

    #password-input,
    #password-submit {
        font-size: 0.95rem;
        padding: 0.85rem;
    }

    /* Navigation Mobile */
    .nav-container {
        padding: 0.8rem 1rem;
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .nav-logo {
        font-size: 1.2rem;
        width: 100%;
        text-align: center;
        margin-bottom: 0.5rem;
    }

    .nav-menu {
        flex-direction: row;
        gap: 0.5rem;
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
    }

    .nav-link {
        font-size: 0.75rem;
        padding: 0.3rem 0.6rem;
    }

    /* Container and Sections */
    .container {
        padding: 1rem;
    }

    .section {
        padding: 3rem 0;
    }

    .cover {
        min-height: 70vh;
        padding: 6rem 1rem 3rem;
    }

    .cover-title {
        font-size: 2rem;
        margin-bottom: 1rem;
    }

    .cover-subtitle {
        font-size: 1rem;
        margin-bottom: 1.5rem;
    }

    .cover-tagline {
        font-size: 0.85rem;
    }

    .cover-device-hint {
        font-size: 0.75rem;
        padding: 0.6rem 1rem;
        margin-top: 1.5rem;
    }

    /* Typography */
    .section-title {
        font-size: 1.5rem;
        margin-bottom: 1.5rem;
    }

    .title-link {
        font-size: 0.7rem;
        padding: 0.25rem 0.6rem;
        margin-left: 0.5rem;
        margin-top: 0.5rem;
        display: inline-block;
    }

    .section-lead {
        font-size: 0.9rem;
    }

    /* Grid Layouts */
    .architecture-layout,
    .business-cards-row,
    .two-column-layout,
    .summary-content,
    .summary-grid,
    .problem-grid,
    .opportunity-grid,
    .solution-grid,
    .competition-grid,
    .team-grid,
    .funding-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    /* Cards */
    .summary-card,
    .problem-card,
    .opportunity-card,
    .solution-card,
    .business-card,
    .competition-card,
    .founder-card,
    .team-card,
    .funding-card,
    .highlight-card {
        padding: 1rem;
    }

    .card-title,
    .summary-title,
    .business-name {
        font-size: 1rem;
    }

    .card-content,
    .summary-text,
    .business-description {
        font-size: 0.85rem;
    }

    /* Summary Bullets */
    .summary-bullets li {
        font-size: 0.85rem;
        padding: 0.6rem 0;
    }

    /* Vision Section */
    .vision-container {
        flex-direction: column;
    }

    .vision-arrow-middle {
        transform: rotate(90deg);
        font-size: 40px;
    }

    .vision-box {
        padding: 1.5rem;
    }

    .vision-label {
        font-size: 0.8rem;
    }

    .vision-value {
        font-size: 1.2rem;
    }

    /* Market Opportunity Visualization */
    .opportunity-grid-viz {
        grid-template-columns: 1fr;
    }

    .opportunity-card-viz {
        padding: 1rem;
    }

    .card-number-viz {
        font-size: 2rem;
    }

    .card-title-viz {
        font-size: 0.95rem;
    }

    .card-desc-viz {
        font-size: 0.8rem;
    }

    .timeline-section-viz,
    .expansion-section-viz {
        padding: 1rem;
    }

    .timeline-title-viz,
    .expansion-title-viz {
        font-size: 1rem;
    }

    .expansion-path-viz {
        font-size: 0.8rem;
    }

    .market-size-viz {
        font-size: 1.5rem;
    }

    /* Competition Section */
    .competition-card.strategy {
        grid-column: 1;
    }

    /* Closing Section */
    .closing-quote-en {
        font-size: 1.5rem;
    }

    .closing-quote-zh {
        font-size: 1.2rem;
    }

    .closing-logo {
        font-size: 2rem;
        letter-spacing: 4px;
    }

    .closing-tagline {
        font-size: 1rem;
    }

    .closing-contact p {
        font-size: 0.85rem;
        word-break: break-all;
    }

    .closing-contact a {
        display: inline-block;
        margin: 0.2rem;
    }
}

/* Smooth Scrolling Indicator */
html {
    scroll-padding-top: 80px;
}