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

:root {
    --primary: #f59e0b;
    --primary-dark: #d97706;
    --primary-light: #fbbf24;
    --secondary: #d946ef;
    --accent: #ec4899;
    --success: #10b981;
    --danger: #ef4444;
    --text: #f8fafc;
    --text-light: #cbd5e1;
    --text-lighter: #94a3b8;
    --bg: #0a0a1a;
    --bg-alt: #121226;
    --bg-card: rgba(26, 26, 46, 0.85);
    --bg-glass: rgba(15, 15, 35, 0.6);
    --bg-dark: #050510;
    --border: rgba(139, 92, 246, 0.2);
    --border-strong: rgba(139, 92, 246, 0.35);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.4);
    --shadow-2xl: 0 25px 50px -12px rgba(245, 158, 11, 0.3);
    --gradient-primary: linear-gradient(135deg, #f59e0b 0%, #ec4899 50%, #8b5cf6 100%);
    --gradient-secondary: linear-gradient(135deg, #d946ef 0%, #8b5cf6 50%, #3b82f6 100%);
    --gradient-accent: linear-gradient(135deg, #f59e0b 0%, #f97316 100%);
    --gradient-success: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);
    --gradient-hero: radial-gradient(ellipse at top, #1a0a2e 0%, #0a0a1a 50%, #050510 100%);
    --gradient-hero-2: radial-gradient(ellipse at bottom right, rgba(236, 72, 153, 0.15) 0%, transparent 50%);
    --radius-sm: 6px;
    --radius: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    overflow-x: hidden;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, #0c0c1c 0%, #08081a 100%);
    z-index: -1;
    pointer-events: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(12, 12, 28, 0.6);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(139, 92, 246, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text);
}

.logo-icon {
    font-size: 32px;
}

.logo-text {
    display: flex;
    flex-direction: column;
    font-weight: 700;
    font-size: 18px;
    line-height: 1.2;
}

.logo-text small {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-lighter);
}

.nav-menu {
    display: flex;
    gap: 32px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-lighter);
    font-size: 15px;
    font-weight: 500;
    transition: color 0.2s;
}

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

.nav-btn {
    background: var(--gradient-primary);
    color: white;
    padding: 10px 24px;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.nav-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(245, 158, 11, 0.4);
}

/* Hero */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 24px 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
    background: linear-gradient(180deg, rgba(255, 179, 102, 0.04) 0%, transparent 60%);
}

.grid-bg {
    display: none;
}

.glow {
    display: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(245, 158, 11, 0.15);
    color: var(--primary-light);
    padding: 8px 20px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 32px;
    border: 1px solid rgba(245, 158, 11, 0.25);
}

.badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-title {
    font-size: 64px;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
    color: #ffffff;
}

.gradient-text {
    color: #ffffff;
}

.gradient-text-2 {
    color: #ffffff;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-light);
    margin-bottom: 40px;
    line-height: 1.8;
}

.highlight {
    color: var(--primary-light);
    font-weight: 600;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 64px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 20px 0 rgba(245, 158, 11, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px 0 rgba(245, 158, 11, 0.5);
}

.btn-secondary {
    background: var(--bg-glass);
    color: var(--text);
    border: 2px solid var(--border);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    border-color: var(--primary);
    color: var(--primary-light);
}

.btn-large {
    padding: 18px 40px;
    font-size: 17px;
    width: 100%;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-num {
    font-size: 48px;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.stat-label {
    font-size: 14px;
    color: var(--text-lighter);
    margin-top: 8px;
}

.stat-divider {
    width: 1px;
    height: 48px;
    background: var(--border);
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-block;
    background: rgba(245, 158, 11, 0.15);
    color: var(--primary-light);
    padding: 6px 16px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 16px;
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.section-header h2 {
    font-size: 44px;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
    line-height: 1.2;
    color: #ffffff;
}

.section-header p {
    font-size: 18px;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* Features */
.features {
    padding: 120px 0;
    background: transparent;
    position: relative;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--bg-card);
    padding: 40px 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all 0.3s;
    border: 1px solid var(--border);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    opacity: 0;
    transition: opacity 0.3s;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px -10px rgba(245, 158, 11, 0.2);
    border-color: var(--border-strong);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: white;
}

.icon-blue { background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%); }
.icon-purple { background: linear-gradient(135deg, #8b5cf6 0%, #6d28d9 100%); }
.icon-green { background: linear-gradient(135deg, #10b981 0%, #047857 100%); }
.icon-orange { background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%); }
.icon-pink { background: linear-gradient(135deg, #ec4899 0%, #be185d 100%); }
.icon-cyan { background: linear-gradient(135deg, #d946ef 0%, #8b5cf6 100%); }

.feature-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 12px;
    color: #ffffff;
}

.feature-card p {
    color: var(--text-light);
    font-size: 15px;
    line-height: 1.7;
}

.inline-tag {
    display: inline-block;
    background: rgba(245, 158, 11, 0.15);
    color: var(--primary-light);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 600;
    margin: 0 2px;
    border: 1px solid rgba(245, 158, 11, 0.15);
}

.tag-green { background: rgba(16, 185, 129, 0.15); color: #34d399; border-color: rgba(16, 185, 129, 0.2); }
.tag-orange { background: rgba(236, 72, 153, 0.15); color: #f9a8d4; border-color: rgba(236, 72, 153, 0.2); }

/* Modules */
.modules {
    padding: 120px 0;
    background: transparent;
}

.module-tabs {
    display: flex;
    gap: 12px;
    margin-bottom: 48px;
    overflow-x: auto;
    padding-bottom: 8px;
    scrollbar-width: none;
}

.module-tabs::-webkit-scrollbar {
    display: none;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 24px;
    border: 2px solid var(--border);
    background: var(--bg-glass);
    border-radius: var(--radius);
    font-size: 15px;
    font-weight: 600;
    color: var(--text-light);
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
    flex-shrink: 0;
    backdrop-filter: blur(10px);
}

.tab-btn:hover {
    border-color: var(--primary);
    color: var(--primary-light);
}

.tab-btn.active {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
    box-shadow: 0 4px 20px 0 rgba(245, 158, 11, 0.3);
}

.tab-num {
    font-size: 13px;
    opacity: 0.8;
}

.module-content {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.module-panel {
    display: none;
    padding: 48px;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.module-panel.active {
    display: grid;
    animation: fadeIn 0.4s ease-out;
}

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

.module-text h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
    color: #ffffff;
}

.module-name {
    display: inline-block;
    font-size: 14px;
    color: var(--primary-light);
    font-weight: 600;
    margin-left: 8px;
}

.module-list {
    list-style: none;
    margin-top: 24px;
}

.module-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 0;
    font-size: 16px;
    color: var(--text);
}

.check-icon {
    color: var(--primary-light);
    font-weight: 700;
    flex-shrink: 0;
}

/* Module Visual */
.module-visual {
    background: rgba(15, 15, 35, 0.6);
    border-radius: var(--radius-lg);
    padding: 32px;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
}

.visual-card {
    background: rgba(26, 26, 46, 0.95);
    border-radius: var(--radius);
    width: 100%;
    box-shadow: var(--shadow-md);
    overflow: hidden;
    border: 1px solid var(--border);
}

.visual-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: rgba(10, 10, 26, 0.8);
    border-bottom: 1px solid var(--border);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}
.dot.red { background: #ef4444; }
.dot.yellow { background: #f59e0b; }
.dot.green { background: #10b981; }

.visual-title {
    font-size: 14px;
    color: var(--text-lighter);
    margin-left: 8px;
}

.visual-body { padding: 24px; }

.scan-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
    color: var(--text);
}

.scan-item:last-of-type { border-bottom: none; }

.scan-status {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.scan-status.active {
    background: var(--primary-light);
    animation: blink 1.5s ease-in-out infinite;
}

.scan-status.done {
    background: var(--text-lighter);
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.scan-name { flex: 1; }
.scan-count { color: var(--text-lighter); font-size: 13px; }

.scan-progress {
    margin-top: 20px;
    height: 8px;
    background: rgba(139, 92, 246, 0.15);
    border-radius: 999px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 999px;
    animation: progressAnim 3s ease-in-out infinite;
}

@keyframes progressAnim {
    0%, 100% { width: 73%; }
    50% { width: 78%; }
}

.scan-stats {
    display: flex;
    justify-content: space-between;
    margin-top: 12px;
    font-size: 13px;
    color: var(--text-lighter);
}

/* Lead Card */
.lead-card {
    background: rgba(26, 26, 46, 0.95);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow-md);
    width: 100%;
    max-width: 360px;
    border: 1px solid var(--border);
}

.lead-type {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 12px;
}

.type-biz { background: rgba(245, 158, 11, 0.15); color: var(--primary-light); }
.type-resource { background: rgba(16, 185, 129, 0.15); color: #34d399; }
.type-connection { background: rgba(236, 72, 153, 0.15); color: #f9a8d4; }

.lead-card h4 {
    font-size: 18px;
    margin-bottom: 8px;
    color: #ffffff;
}

.lead-desc {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 16px;
    line-height: 1.6;
}

.lead-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}

.lead-tags span {
    background: rgba(139, 92, 246, 0.1);
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 12px;
    color: var(--text-light);
}

.lead-contact {
    display: flex;
    gap: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
    font-size: 14px;
    color: var(--text);
}

/* AI Flow */
.ai-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.flow-node {
    background: rgba(26, 26, 46, 0.95);
    padding: 16px 24px;
    border-radius: var(--radius);
    font-weight: 600;
    color: var(--text);
    box-shadow: var(--shadow-sm);
    border: 2px solid var(--border);
}

.node-ai {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
    text-align: center;
    padding: 20px 32px;
    box-shadow: 0 8px 24px rgba(245, 158, 11, 0.3);
}

.ai-core {
    font-size: 20px;
    font-weight: 800;
}

.ai-sub {
    font-size: 12px;
    opacity: 0.9;
    margin-top: 4px;
}

.flow-arrow {
    font-size: 24px;
    color: var(--primary-light);
    font-weight: 700;
}

.ai-modules {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.ai-chip {
    background: rgba(26, 26, 46, 0.95);
    padding: 8px 16px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
}

/* Refine Flow */
.refine-flow {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    width: 100%;
}

.refine-step {
    background: rgba(26, 26, 46, 0.95);
    padding: 16px 24px;
    border-radius: var(--radius);
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 2px solid var(--border);
    width: 100%;
    max-width: 280px;
}

.step-num {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin: 0 auto 8px;
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
}

.step-title {
    font-weight: 600;
    font-size: 15px;
    margin-bottom: 4px;
    color: #ffffff;
}

.step-desc {
    font-size: 13px;
    color: var(--text-lighter);
}

.refine-arrow {
    color: var(--primary-light);
    font-size: 16px;
}

.step-final {
    background: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);
    color: white;
    border-color: transparent;
    box-shadow: 0 8px 20px rgba(16, 185, 129, 0.3);
}

.step-final .step-num {
    background: rgba(255, 255, 255, 0.3);
    box-shadow: none;
}

.step-final .step-desc {
    color: rgba(255, 255, 255, 0.9);
}

/* Associate Graph */
.associate-graph {
    position: relative;
    width: 100%;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.graph-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--gradient-primary);
    color: white;
    padding: 16px 24px;
    border-radius: var(--radius);
    font-weight: 700;
    z-index: 2;
    box-shadow: 0 12px 32px rgba(245, 158, 11, 0.4);
}

.graph-node {
    position: absolute;
    background: rgba(26, 26, 46, 0.95);
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    box-shadow: var(--shadow-md);
    border: 2px solid var(--border);
    z-index: 2;
    color: var(--text);
}

.node-1 { top: 20%; left: 15%; }
.node-2 { top: 20%; right: 15%; }
.node-3 { bottom: 20%; left: 15%; }
.node-4 { bottom: 20%; right: 15%; }

.graph-line {
    position: absolute;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), transparent);
    z-index: 1;
    opacity: 0.4;
}

.line-1 { top: 35%; left: 25%; width: 30%; transform: rotate(15deg); }
.line-2 { top: 35%; right: 25%; width: 30%; transform: rotate(-15deg); }
.line-3 { bottom: 35%; left: 25%; width: 30%; transform: rotate(-15deg); }
.line-4 { bottom: 35%; right: 25%; width: 30%; transform: rotate(15deg); }

/* Track Schedule */
.track-schedule {
    background: rgba(26, 26, 46, 0.95);
    border-radius: var(--radius);
    width: 100%;
    max-width: 360px;
    box-shadow: var(--shadow-md);
    overflow: hidden;
    border: 1px solid var(--border);
}

.schedule-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    background: rgba(10, 10, 26, 0.6);
    font-weight: 600;
    font-size: 14px;
    color: #ffffff;
}

.schedule-count {
    color: var(--primary-light);
    font-size: 13px;
}

.schedule-list {
    padding: 12px 20px;
}

.schedule-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
    color: var(--text);
}

.schedule-item:last-child { border-bottom: none; }

.schedule-time {
    color: var(--text-lighter);
    font-size: 13px;
    flex-shrink: 0;
    width: 100px;
}

.schedule-name { flex: 1; }

.schedule-status {
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 999px;
    font-weight: 500;
}

.status-done { background: rgba(16, 185, 129, 0.15); color: #34d399; }
.status-pending { background: rgba(236, 72, 153, 0.15); color: #f9a8d4; }

/* Architecture */
.architecture {
    padding: 120px 0;
    background: transparent;
}

.arch-diagram {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.arch-layer {
    width: 100%;
    padding: 24px 32px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--border);
}

.layer-ui { background: linear-gradient(135deg, rgba(59, 130, 246, 0.15) 0%, rgba(139, 92, 246, 0.15) 100%); }
.layer-core { background: linear-gradient(135deg, rgba(16, 185, 129, 0.15) 0%, rgba(6, 182, 212, 0.15) 100%); }
.layer-ai { background: linear-gradient(135deg, rgba(245, 158, 11, 0.15) 0%, rgba(236, 72, 153, 0.15) 100%); }
.layer-data { background: linear-gradient(135deg, rgba(236, 72, 153, 0.15) 0%, rgba(139, 92, 246, 0.15) 100%); }

.layer-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 16px;
    color: #ffffff;
}

.layer-items {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.arch-item {
    background: rgba(26, 26, 46, 0.8);
    padding: 8px 16px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
}

.arch-arrow {
    font-size: 20px;
    color: var(--text-lighter);
    font-weight: 700;
}

/* Scenarios */
.scenarios {
    padding: 120px 0;
}

.scenario-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.scenario-card {
    background: var(--bg-card);
    padding: 40px 32px;
    border-radius: var(--radius-lg);
    border: 2px solid var(--border);
    transition: all 0.3s;
    text-align: center;
    backdrop-filter: blur(10px);
}

.scenario-card:hover {
    border-color: var(--primary);
    transform: translateY(-8px);
    box-shadow: 0 20px 40px -10px rgba(245, 158, 11, 0.25);
}

.scenario-icon {
    font-size: 56px;
    margin-bottom: 24px;
}

.scenario-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 12px;
    color: #ffffff;
}

.scenario-card p {
    color: var(--text-light);
    font-size: 15px;
    line-height: 1.7;
}

/* Download */
.download {
    padding: 120px 0;
    background: linear-gradient(180deg, rgba(245, 158, 11, 0.08) 0%, transparent 50%, rgba(139, 92, 246, 0.08) 100%);
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 24px;
    margin-bottom: 48px;
}

.download-card {
    background: var(--bg-card);
    padding: 40px;
    border-radius: var(--radius-xl);
    border: 2px solid var(--border);
    position: relative;
    transition: all 0.3s;
    backdrop-filter: blur(10px);
}

.download-card.featured {
    border-color: var(--primary);
    box-shadow: 0 20px 60px -15px rgba(245, 158, 11, 0.35);
    transform: scale(1.02);
}

.download-card:hover {
    box-shadow: 0 25px 50px -12px rgba(245, 158, 11, 0.4);
}

.download-badge {
    position: absolute;
    top: -16px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: white;
    padding: 6px 20px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.4);
}

.download-icon {
    font-size: 64px;
    text-align: center;
    margin-bottom: 16px;
}

.download-card h3 {
    font-size: 26px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 8px;
    color: #ffffff;
}

.download-desc {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 24px;
    font-size: 15px;
}

.download-info {
    background: rgba(15, 15, 35, 0.6);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 24px;
    border: 1px solid var(--border);
}

.info-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    font-size: 14px;
}

.info-row span:first-child { color: var(--text-lighter); }
.info-row span:last-child { color: var(--text); font-weight: 600; }

.download-hint {
    display: block;
    text-align: center;
    margin-top: 12px;
    color: var(--text-lighter);
    font-size: 13px;
}

.download-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    margin-top: 48px;
    padding: 32px;
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border);
    backdrop-filter: blur(10px);
}

.step {
    text-align: center;
    flex: 1;
    min-width: 120px;
}

.step-circle {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: white;
    font-size: 24px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
}

.step h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 4px;
    color: #ffffff;
}

.step p {
    font-size: 13px;
    color: var(--text-lighter);
}

.step-arrow {
    font-size: 24px;
    color: var(--primary-light);
    font-weight: 700;
}

/* Contact */
.contact {
    padding: 120px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    margin-bottom: 48px;
}

.contact-card {
    background: var(--bg-card);
    padding: 48px 32px;
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
    backdrop-filter: blur(10px);
}

.contact-avatar {
    font-size: 56px;
    margin-bottom: 16px;
}

.contact-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
    color: #ffffff;
}

.contact-card > p {
    color: var(--text-light);
    font-size: 15px;
    margin-bottom: 32px;
}

.qr-container {
    width: 220px;
    height: 220px;
    margin: 0 auto 16px;
    padding: 12px;
    background: white;
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.qr-container img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.qr-label {
    font-size: 14px;
    color: var(--text-light);
    font-weight: 500;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: center;
    padding: 24px;
    background: rgba(15, 15, 35, 0.6);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 16px;
    color: var(--text);
}

.contact-link a {
    color: var(--primary-light);
    text-decoration: none;
    font-weight: 500;
}

.contact-link a:hover {
    text-decoration: underline;
}

.link-icon {
    font-size: 20px;
}

/* Footer */
.footer {
    background: #050510;
    color: white;
    padding: 64px 0 24px;
    border-top: 1px solid var(--border);
}

.footer-main {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 16px;
}

.footer-name {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 4px;
}

.footer-tag {
    font-size: 14px;
    color: #94a3b8;
}

.footer-cols {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.footer-col h5 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 16px;
    color: white;
}

.footer-col a {
    display: block;
    color: #94a3b8;
    text-decoration: none;
    font-size: 14px;
    padding: 6px 0;
    transition: color 0.2s;
}

.footer-col a:hover {
    color: var(--primary-light);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    padding-top: 24px;
    border-top: 1px solid rgba(139, 92, 246, 0.2);
    font-size: 13px;
    color: #94a3b8;
    flex-wrap: wrap;
    gap: 12px;
}

/* Responsive */
@media (max-width: 1024px) {
    .hero-title { font-size: 48px; }
    .section-header h2 { font-size: 36px; }
    .nav-menu { display: none; }
}

@media (max-width: 768px) {
    .hero-title { font-size: 36px; }
    .hero-subtitle { font-size: 16px; }
    .section-header h2 { font-size: 28px; }
    .section-header p { font-size: 16px; }
    .hero-stats { gap: 24px; }
    .stat-num { font-size: 32px; }
    .stat-divider { display: none; }
    .module-panel { grid-template-columns: 1fr; padding: 32px 24px; }
    .footer-main { grid-template-columns: 1fr; gap: 32px; }
    .footer-cols { grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .download-card.featured { transform: none; }
    .download-steps { gap: 12px; }
    .step-arrow { display: none; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 28px; }
    .hero-actions { flex-direction: column; width: 100%; }
    .btn { width: 100%; }
    .nav-btn { padding: 8px 16px; font-size: 13px; }
    .features-grid { grid-template-columns: 1fr; }
    .scenario-grid { grid-template-columns: 1fr; }
    .download-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-cols { grid-template-columns: 1fr; }
}