/* VR演讲页面专用样式 */

/* VR英雄区域 */
.vr-hero {
    min-height: 100vh;
    background: linear-gradient(135deg, #0a0a0f 0%, #1a1a2e 30%, #16213e 70%, #0f3460 100%);
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.vr-hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 30% 40%, rgba(138, 43, 226, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 70% 60%, rgba(0, 191, 255, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 50% 80%, rgba(255, 20, 147, 0.1) 0%, transparent 50%);
}

.vr-particles {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(2px 2px at 25px 35px, rgba(138, 43, 226, 0.3), transparent),
        radial-gradient(1px 1px at 50px 80px, rgba(0, 191, 255, 0.3), transparent),
        radial-gradient(3px 3px at 80px 20px, rgba(255, 20, 147, 0.2), transparent);
    background-repeat: repeat;
    background-size: 150px 150px;
    animation: vrFloat 25s ease-in-out infinite;
}

@keyframes vrFloat {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    33% { transform: translateY(-15px) rotate(1deg); }
    66% { transform: translateY(-10px) rotate(-1deg); }
}

.vr-hero-content {
    max-width: 600px;
    animation: slideInLeft 1s ease-out;
}

.vr-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(138, 43, 226, 0.2);
    border: 1px solid rgba(138, 43, 226, 0.4);
    padding: 8px 16px;
    border-radius: 20px;
    color: #da70d6;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 20px;
}

.vr-hero-title {
    font-size: clamp(40px, 5vw, 64px);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
}

.vr-title-line {
    display: block;
}

.vr-hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.6;
}

.vr-features-preview {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 40px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    transition: var(--transition-smooth);
}

.feature-item:hover {
    background: rgba(138, 43, 226, 0.1);
    border-color: rgba(138, 43, 226, 0.3);
    transform: translateY(-2px);
}

.feature-item i {
    color: #da70d6;
    font-size: 16px;
}

.feature-item span {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.vr-hero-buttons {
    display: flex;
    gap: 16px;
}

.btn-secondary i {
    margin-right: 8px;
}

/* VR头显可视化 */
.vr-hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: slideInRight 1s ease-out;
}

.vr-headset {
    width: 350px;
    height: 350px;
    position: relative;
    animation: vrPulse 4s ease-in-out infinite;
}

@keyframes vrPulse {
    0%, 100% { 
        transform: scale(1) rotateY(0deg);
    }
    25% { 
        transform: scale(1.05) rotateY(5deg);
    }
    50% { 
        transform: scale(1.1) rotateY(0deg);
    }
    75% { 
        transform: scale(1.05) rotateY(-5deg);
    }
}

.headset-body {
    width: 200px;
    height: 120px;
    background: linear-gradient(145deg, #2d3748, #1a202c);
    border-radius: 20px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 
        0 10px 30px rgba(0, 0, 0, 0.5),
        inset 0 2px 10px rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(138, 43, 226, 0.3);
}

.headset-lens {
    width: 60px;
    height: 60px;
    background: radial-gradient(circle, rgba(0, 191, 255, 0.8) 0%, rgba(138, 43, 226, 0.6) 100%);
    border-radius: 50%;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    border: 3px solid rgba(255, 255, 255, 0.2);
    animation: lensGlow 3s ease-in-out infinite alternate;
}

.headset-lens.left {
    left: 20px;
}

.headset-lens.right {
    right: 20px;
}

@keyframes lensGlow {
    0% { 
        box-shadow: 0 0 20px rgba(0, 191, 255, 0.5);
        background: radial-gradient(circle, rgba(0, 191, 255, 0.8) 0%, rgba(138, 43, 226, 0.6) 100%);
    }
    100% { 
        box-shadow: 0 0 40px rgba(138, 43, 226, 0.8);
        background: radial-gradient(circle, rgba(138, 43, 226, 0.8) 0%, rgba(0, 191, 255, 0.6) 100%);
    }
}

.headset-light {
    width: 40px;
    height: 8px;
    background: linear-gradient(90deg, #00bfff, #da70d6);
    border-radius: 4px;
    position: absolute;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    animation: statusLight 2s ease-in-out infinite;
}

@keyframes statusLight {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

.headset-strap {
    width: 250px;
    height: 20px;
    background: linear-gradient(90deg, #2d3748, #4a5568);
    border-radius: 10px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: -1;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.3);
}

.vr-environment {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    overflow: hidden;
    border-radius: 50%;
    opacity: 0.3;
}

.env-layer {
    position: absolute;
    width: 120%;
    height: 120%;
    border-radius: 50%;
    border: 1px solid;
    animation: envRotate 20s linear infinite;
}

.env-layer:nth-child(1) {
    border-color: rgba(0, 191, 255, 0.3);
    animation-duration: 20s;
}

.env-layer:nth-child(2) {
    border-color: rgba(138, 43, 226, 0.3);
    animation-duration: 15s;
    animation-direction: reverse;
}

.env-layer:nth-child(3) {
    border-color: rgba(255, 20, 147, 0.3);
    animation-duration: 25s;
}

@keyframes envRotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* VR特色功能区域 */
.vr-features {
    background: var(--dark-surface);
    padding: 100px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.feature-card {
    background: var(--dark-card);
    padding: 40px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
    transition: var(--transition-smooth);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
    transform: translateX(-100%);
    transition: var(--transition-slow);
}

.feature-card:hover::before {
    transform: translateX(100%);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: rgba(138, 43, 226, 0.4);
}

.feature-card.immersive:hover {
    border-color: rgba(0, 191, 255, 0.4);
}

.feature-card.analysis:hover {
    border-color: rgba(50, 205, 50, 0.4);
}

.feature-card.progress:hover {
    border-color: rgba(255, 165, 0, 0.4);
}

.feature-card.value:hover {
    border-color: rgba(255, 20, 147, 0.4);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.feature-card.immersive .feature-icon {
    background: linear-gradient(135deg, #00bfff, #87ceeb);
}

.feature-card.analysis .feature-icon {
    background: linear-gradient(135deg, #32cd32, #90ee90);
}

.feature-card.progress .feature-icon {
    background: linear-gradient(135deg, #ffa500, #ffd700);
}

.feature-card.value .feature-icon {
    background: linear-gradient(135deg, #ff1493, #ff69b4);
}

.feature-icon i {
    font-size: 28px;
    color: white;
}

.feature-card h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.6;
}

.feature-specs {
    list-style: none;
    margin-bottom: 24px;
}

.feature-specs li {
    color: var(--text-muted);
    margin-bottom: 8px;
    padding-left: 20px;
    position: relative;
}

.feature-specs li::before {
    content: '●';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

.feature-card.immersive .feature-specs li::before {
    color: #00bfff;
}

.feature-card.analysis .feature-specs li::before {
    color: #32cd32;
}

.feature-card.progress .feature-specs li::before {
    color: #ffa500;
}

.feature-card.value .feature-specs li::before {
    color: #ff1493;
}

/* 功能可视化 */
.feature-visual {
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 20px;
}

.vr-scene {
    position: relative;
    width: 100px;
    height: 60px;
    background: linear-gradient(135deg, rgba(0, 191, 255, 0.1), rgba(138, 43, 226, 0.1));
    border-radius: 8px;
    overflow: hidden;
}

.scene-element {
    position: absolute;
    border-radius: 2px;
    animation: sceneAnimate 3s ease-in-out infinite;
}

.scene-element.audience {
    width: 20px;
    height: 30px;
    background: rgba(255, 255, 255, 0.3);
    bottom: 5px;
    left: 10px;
}

.scene-element.stage {
    width: 60px;
    height: 8px;
    background: rgba(255, 255, 255, 0.2);
    bottom: 0;
    right: 0;
}

.scene-element.spotlight {
    width: 30px;
    height: 30px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.3), transparent);
    top: 5px;
    right: 15px;
    border-radius: 50%;
}

@keyframes sceneAnimate {
    0%, 100% { opacity: 0.7; }
    50% { opacity: 1; }
}

.voice-waveform {
    display: flex;
    align-items: end;
    gap: 4px;
    height: 60px;
}

.wave-bar {
    width: 8px;
    background: linear-gradient(to top, #32cd32, #90ee90);
    border-radius: 4px 4px 0 0;
    height: var(--height);
    animation: waveAnimate 1.5s ease-in-out infinite;
    animation-delay: calc(var(--i, 0) * 0.1s);
}

.wave-bar:nth-child(1) { --i: 0; }
.wave-bar:nth-child(2) { --i: 1; }
.wave-bar:nth-child(3) { --i: 2; }
.wave-bar:nth-child(4) { --i: 3; }
.wave-bar:nth-child(5) { --i: 4; }
.wave-bar:nth-child(6) { --i: 5; }
.wave-bar:nth-child(7) { --i: 6; }

@keyframes waveAnimate {
    0%, 100% { transform: scaleY(0.5); }
    50% { transform: scaleY(1.2); }
}

.progress-chart {
    display: flex;
    align-items: end;
    gap: 8px;
    height: 60px;
}

.chart-bar {
    width: 16px;
    background: linear-gradient(to top, #ffa500, #ffd700);
    border-radius: 4px 4px 0 0;
    height: var(--progress);
    animation: chartGrow 2s ease-out;
}

@keyframes chartGrow {
    from { height: 0; }
    to { height: var(--progress); }
}

.value-indicator {
    text-align: center;
}

.price-tag {
    margin-bottom: 8px;
}

.original {
    color: var(--text-muted);
    text-decoration: line-through;
    margin-right: 8px;
}

.discounted {
    color: #ff1493;
    font-weight: 700;
    font-size: 18px;
}

.savings {
    background: linear-gradient(135deg, #ff1493, #ff69b4);
    color: white;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

/* 使用场景区域 */
.vr-scenarios {
    background: var(--dark-bg);
    padding: 100px 0;
}

.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.scenario-card {
    background: var(--dark-card);
    padding: 40px 30px;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.scenario-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(transparent, rgba(138, 43, 226, 0.1), transparent);
    animation: scenarioRotate 4s linear infinite;
    opacity: 0;
    transition: var(--transition-smooth);
}

.scenario-card:hover::after {
    opacity: 1;
}

.scenario-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(138, 43, 226, 0.2);
    border-color: rgba(138, 43, 226, 0.3);
}

@keyframes scenarioRotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.scenario-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), #da70d6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    position: relative;
    z-index: 2;
}

.scenario-icon i {
    font-size: 32px;
    color: white;
}

.scenario-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 16px;
    position: relative;
    z-index: 2;
}

.scenario-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    position: relative;
    z-index: 2;
}

/* 技术优势区域 */
.vr-advantages {
    background: var(--dark-surface);
    padding: 100px 0;
}

.advantages-content {
    max-width: 800px;
    margin: 0 auto;
}

.advantage-item {
    display: flex;
    gap: 30px;
    margin-bottom: 40px;
    padding: 30px;
    background: var(--dark-card);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-smooth);
}

.advantage-item:hover {
    transform: translateX(10px);
    border-color: rgba(138, 43, 226, 0.3);
    box-shadow: -5px 0 20px rgba(138, 43, 226, 0.2);
}

.advantage-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), #da70d6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    color: white;
    flex-shrink: 0;
}

.advantage-content h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.advantage-content p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 用户评价区域 */
.vr-testimonials {
    background: var(--dark-bg);
    padding: 100px 0;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.testimonial-card {
    background: var(--dark-card);
    padding: 30px;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-smooth);
    display: flex;
    gap: 20px;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    border-color: rgba(138, 43, 226, 0.3);
}

.testimonial-avatar {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), #da70d6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.testimonial-avatar i {
    font-size: 24px;
    color: white;
}

.testimonial-content {
    flex: 1;
}

.stars {
    margin-bottom: 16px;
}

.stars i {
    color: #ffd700;
    margin-right: 2px;
}

.testimonial-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
    font-style: italic;
}

.testimonial-author strong {
    color: var(--text-primary);
    font-weight: 600;
}

.testimonial-author span {
    color: var(--text-muted);
    font-size: 14px;
    display: block;
    margin-top: 4px;
}

/* CTA区域 */
.vr-cta {
    background: linear-gradient(135deg, var(--dark-surface), var(--dark-card));
    padding: 100px 0;
    text-align: center;
}

.cta-content h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--primary-color), #da70d6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cta-content p {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
}

.btn-large {
    padding: 16px 32px;
    font-size: 18px;
    border-radius: 30px;
}

.btn-large i {
    margin-right: 10px;
}

.cta-features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    max-width: 600px;
    margin: 0 auto;
}

.cta-feature {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.cta-feature i {
    font-size: 24px;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.cta-feature span {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* 导航栏激活状态 */
.nav-menu a.active {
    color: var(--primary-color) !important;
}

.nav-menu a.active::after {
    width: 100% !important;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .vr-hero-content {
        text-align: center;
    }
    
    .vr-features-preview {
        grid-template-columns: 1fr;
    }
    
    .vr-hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .vr-headset {
        width: 280px;
        height: 280px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .scenarios-grid {
        grid-template-columns: 1fr;
    }
    
    .advantage-item {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonial-card {
        flex-direction: column;
        text-align: center;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-features {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .vr-features-preview {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .feature-item {
        padding: 10px 12px;
    }
    
    .vr-headset {
        width: 220px;
        height: 220px;
    }
    
    .headset-body {
        width: 160px;
        height: 100px;
    }
    
    .headset-lens {
        width: 45px;
        height: 45px;
    }
    
    .headset-lens.left {
        left: 15px;
    }
    
    .headset-lens.right {
        right: 15px;
    }
    
    .cta-features {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}