/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #e1e1e6;
    background: linear-gradient(135deg, #0a0e27 0%, #151932 100%);
    min-height: 100vh;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    background: rgba(21, 25, 50, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 0 50px rgba(79, 195, 247, 0.1);
}

/* 英雄区域 */
.hero-section {
    background: linear-gradient(135deg, rgba(79, 195, 247, 0.1) 0%, rgba(156, 39, 176, 0.1) 100%);
    border-bottom: 2px solid rgba(79, 195, 247, 0.3);
    color: #e1e1e6;
    padding: 80px 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%234FC3F7' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    animation: drift 30s linear infinite;
}

@keyframes drift {
    0% { transform: translate(0, 0); }
    100% { transform: translate(60px, 60px); }
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    background: rgba(79, 195, 247, 0.2);
    border: 1px solid rgba(79, 195, 247, 0.5);
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 14px;
    margin-bottom: 20px;
    color: #4FC3F7;
}

.hero-title {
    font-size: 3.5em;
    margin-bottom: 20px;
    font-weight: 700;
    text-shadow: 0 0 40px rgba(79, 195, 247, 0.5);
    background: linear-gradient(135deg, #4FC3F7 0%, #9C27B0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5em;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 40px;
}

.hero-description {
    max-width: 800px;
    margin: 0 auto 40px;
    font-size: 1.1em;
    line-height: 1.8;
    color: #e1e1e6;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 独特功能展示 */
.unique-features {
    padding: 80px 40px;
    background: rgba(10, 14, 39, 0.5);
    border-top: 1px solid rgba(79, 195, 247, 0.1);
    border-bottom: 1px solid rgba(79, 195, 247, 0.1);
}

.section-title {
    text-align: center;
    font-size: 2.5em;
    margin-bottom: 50px;
    color: #e1e1e6;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(135deg, #4FC3F7 0%, #9C27B0 100%);
    border-radius: 2px;
    box-shadow: 0 0 20px rgba(79, 195, 247, 0.5);
}

.feature-showcase {
    max-width: 1200px;
    margin: 0 auto;
}

.feature-block {
    background: linear-gradient(135deg, rgba(79, 195, 247, 0.05), rgba(79, 195, 247, 0.02));
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 30px;
    margin-bottom: 30px;
    border: 1px solid rgba(79, 195, 247, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.feature-block:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 12px 40px rgba(79, 195, 247, 0.2);
    border-color: rgba(79, 195, 247, 0.4);
}

.feature-block.premium {
    border: 2px solid rgba(79, 195, 247, 0.3);
    background: linear-gradient(135deg, rgba(79, 195, 247, 0.08), rgba(156, 39, 176, 0.08));
}

.feature-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 30px;
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #4FC3F7, #9C27B0);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
}

.feature-header h3 {
    font-size: 1.8em;
    color: #fff;
    flex: 1;
}

.feature-badge {
    background: rgba(0, 255, 127, 0.2);
    border: 1px solid rgba(0, 255, 127, 0.5);
    color: #00ff7f;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
}

.feature-details h4 {
    font-size: 1.3em;
    color: #4FC3F7;
    margin-bottom: 20px;
}

.tech-list {
    list-style: none;
    margin-bottom: 25px;
}

.tech-list li {
    padding: 8px 0;
    color: rgba(255, 255, 255, 0.6);
    display: flex;
    align-items: center;
    gap: 10px;
}

.tech-list li::before {
    content: '✓';
    color: #00ff7f;
    font-weight: bold;
}

.tech-list strong {
    color: #fff;
    font-weight: 600;
}

.tech-benefit {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: #0099ff;
    font-weight: 500;
    margin-top: 20px;
    background: rgba(79, 195, 247, 0.1);
    padding: 15px 20px;
    border-radius: 12px;
    border: 1px solid rgba(79, 195, 247, 0.2);
}

.benefit-icon {
    font-size: 1.5em;
    color: #4FC3F7;
}

/* 模态能力网格 */
.modality-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 25px;
}

.modality-item {
    display: flex;
    gap: 15px;
    padding: 20px;
    background: rgba(21, 25, 50, 0.8);
    border-radius: 12px;
    border: 1px solid rgba(79, 195, 247, 0.2);
}

.modality-icon {
    font-size: 2em;
    filter: drop-shadow(0 0 10px rgba(79, 195, 247, 0.5));
}

.modality-item strong {
    display: block;
    color: #4FC3F7;
    margin-bottom: 5px;
}

.modality-item p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9em;
}

/* 记忆系统结构 */
.memory-structure {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 25px;
}

.memory-type {
    padding: 20px;
    background: white;
    border: 2px solid #ecf0f1;
    border-radius: 12px;
    transition: border-color 0.3s;
}

.memory-type:hover {
    border-color: #667eea;
}

.memory-type h5 {
    font-size: 1.1em;
    color: #2c3e50;
    margin-bottom: 10px;
}

.memory-type p {
    color: #7f8c8d;
    font-size: 0.9em;
}

/* 行为时间线 */
.behavior-timeline {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.behavior-item {
    display: flex;
    gap: 15px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 12px;
    border-left: 4px solid #667eea;
}

.behavior-item .time {
    font-size: 1.2em;
    font-weight: bold;
    color: #667eea;
    min-width: 60px;
}

.behavior-item .activity strong {
    display: block;
    color: #2c3e50;
    margin-bottom: 5px;
}

.behavior-item .activity p {
    color: #7f8c8d;
    font-size: 0.9em;
}

.special-features {
    background: white;
    padding: 25px;
    border-radius: 12px;
    border: 2px solid #ecf0f1;
}

.special-features h5 {
    font-size: 1.2em;
    color: #2c3e50;
    margin-bottom: 15px;
}

.special-features ul {
    list-style: none;
}

.special-features li {
    padding: 10px 0;
    padding-left: 25px;
    position: relative;
    color: #555;
}

.special-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #667eea;
    font-weight: bold;
}

/* 情感系统 */
.emotion-system {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 25px;
}

.emotion-mechanism {
    padding: 25px;
    background: white;
    border: 2px solid #ecf0f1;
    border-radius: 12px;
}

.emotion-mechanism h5 {
    font-size: 1.2em;
    color: #2c3e50;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid #ecf0f1;
}

.emotion-mechanism ul {
    list-style: none;
}

.emotion-mechanism li {
    padding: 8px 0;
    padding-left: 20px;
    position: relative;
    color: #555;
}

.emotion-mechanism li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #667eea;
    font-size: 1.2em;
}

/* 医疗场景展示 */
.medical-scenarios {
    padding: 100px 40px;
    background: rgba(21, 25, 50, 0.5);
    border-top: 1px solid rgba(79, 195, 247, 0.1);
    border-bottom: 1px solid rgba(79, 195, 247, 0.1);
}

.scenario-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    max-width: 1200px;
    margin: 0 auto;
}

.scenario-demo h3,
.scenario-features h3 {
    color: #4FC3F7;
    font-size: 1.5em;
    margin-bottom: 25px;
    text-shadow: 0 0 20px rgba(79, 195, 247, 0.5);
}

/* 聊天窗口样式 */
.chat-window {
    background: rgba(10, 14, 39, 0.8);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(79, 195, 247, 0.2);
    border: 1px solid rgba(79, 195, 247, 0.3);
}

.chat-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 15px 20px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.chat-header img {
    width: 45px;
    height: 45px;
    border-radius: 50%;
}

.chat-info {
    color: white;
}

.chat-name {
    font-weight: 600;
    font-size: 1.1em;
}

.chat-status {
    font-size: 0.85em;
    opacity: 0.9;
}

.chat-messages {
    padding: 20px;
    height: 500px;
    overflow-y: auto;
    background: rgba(21, 25, 50, 0.9);
}

.message-day {
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.85em;
    margin: 20px 0;
}

.message {
    margin-bottom: 15px;
    animation: messageSlide 0.3s ease;
}

.message.ai {
    align-self: flex-start;
}

.message.user {
    align-self: flex-end;
    text-align: right;
}

.message p {
    display: inline-block;
    padding: 12px 16px;
    border-radius: 18px;
    max-width: 80%;
    line-height: 1.5;
}

.message.ai p {
    background: rgba(79, 195, 247, 0.15);
    color: #e1e1e6;
    border-bottom-left-radius: 4px;
    border: 1px solid rgba(79, 195, 247, 0.3);
}

.message.user p {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-bottom-right-radius: 4px;
}

.message.image img {
    max-width: 200px;
    border-radius: 12px;
    margin-bottom: 8px;
}

.typing-indicator {
    display: inline-flex;
    align-items: center;
    padding: 12px 16px;
    background: rgba(79, 195, 247, 0.15);
    border-radius: 18px;
    margin-bottom: 15px;
    border: 1px solid rgba(79, 195, 247, 0.3);
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    background: #4FC3F7;
    border-radius: 50%;
    margin: 0 2px;
    animation: typing 1.4s infinite;
    box-shadow: 0 0 10px rgba(79, 195, 247, 0.5);
}

.typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% { opacity: 0.3; }
    30% { opacity: 1; }
}

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

.message.delayed {
    animation-delay: 1s;
}

/* 医疗能力卡片 */
.medical-capabilities {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.capability-card {
    padding: 25px;
    background: rgba(79, 195, 247, 0.08);
    border-radius: 12px;
    border-left: 4px solid #4FC3F7;
    border: 1px solid rgba(79, 195, 247, 0.2);
    transition: all 0.3s;
}

.capability-card:hover {
    background: rgba(79, 195, 247, 0.12);
    transform: translateX(5px);
    box-shadow: 0 5px 25px rgba(79, 195, 247, 0.2);
}

.capability-card h4 {
    font-size: 1.2em;
    color: #4FC3F7;
    margin-bottom: 10px;
    text-shadow: 0 0 10px rgba(79, 195, 247, 0.5);
}

.capability-card p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

/* 对比表格 */
.comparison-section {
    padding: 100px 40px;
    background: rgba(10, 14, 39, 0.5);
    border-top: 1px solid rgba(79, 195, 247, 0.1);
    border-bottom: 1px solid rgba(79, 195, 247, 0.1);
}

.comparison-table {
    max-width: 1000px;
    margin: 0 auto;
    overflow-x: auto;
}

.comparison-table table {
    width: 100%;
    border-collapse: collapse;
    background: rgba(21, 25, 50, 0.9);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(79, 195, 247, 0.15);
    border: 1px solid rgba(79, 195, 247, 0.3);
}

.comparison-table th {
    padding: 20px;
    background: linear-gradient(135deg, rgba(79, 195, 247, 0.3) 0%, rgba(156, 39, 176, 0.3) 100%);
    color: #4FC3F7;
    font-weight: 600;
    text-align: left;
    border-bottom: 2px solid rgba(79, 195, 247, 0.5);
}

.comparison-table th:first-child {
    width: 30%;
}

.comparison-table td {
    padding: 20px;
    border-bottom: 1px solid rgba(79, 195, 247, 0.1);
    color: rgba(255, 255, 255, 0.8);
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

.comparison-table td:first-child {
    font-weight: 600;
    color: #4FC3F7;
    text-shadow: 0 0 10px rgba(79, 195, 247, 0.3);
}

.comparison-table .traditional {
    color: #ff6b6b;
    background: rgba(239, 83, 80, 0.1);
    text-shadow: 0 0 10px rgba(239, 83, 80, 0.5);
}

.comparison-table .bionic {
    color: #00ff7f;
    background: rgba(0, 255, 127, 0.1);
    text-shadow: 0 0 10px rgba(0, 255, 127, 0.5);
}

/* 实施保障 */
.implementation-section {
    padding: 100px 40px;
    background: white;
}

.implementation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.impl-card {
    text-align: center;
    padding: 40px 30px;
    background: linear-gradient(135deg, #667eea10 0%, #764ba210 100%);
    border-radius: 16px;
    transition: transform 0.3s;
}

.impl-card:hover {
    transform: translateY(-5px);
}

.impl-icon {
    font-size: 3em;
    margin-bottom: 20px;
}

.impl-card h3 {
    font-size: 1.4em;
    color: #2c3e50;
    margin-bottom: 15px;
}

.impl-card p {
    color: #555;
    line-height: 1.6;
}

/* CTA部分 */
.cta-section {
    background: linear-gradient(135deg, rgba(79, 195, 247, 0.2) 0%, rgba(156, 39, 176, 0.2) 100%);
    padding: 100px 40px;
    text-align: center;
    color: white;
    border-top: 2px solid rgba(79, 195, 247, 0.5);
}

.cta-content h2 {
    font-size: 2.8em;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #4FC3F7 0%, #9C27B0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 40px rgba(79, 195, 247, 0.3);
}

.cta-content > p {
    font-size: 1.3em;
    margin-bottom: 40px;
    color: rgba(255, 255, 255, 0.8);
}

.cta-features {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.cta-features span {
    padding: 10px 20px;
    background: rgba(79, 195, 247, 0.15);
    border-radius: 30px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(79, 195, 247, 0.3);
    color: #4FC3F7;
    text-shadow: 0 0 10px rgba(79, 195, 247, 0.5);
}

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

.btn-primary, .btn-secondary {
    padding: 18px 50px;
    font-size: 1.2em;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 500;
}

.btn-primary {
    background: linear-gradient(135deg, #4FC3F7 0%, #9C27B0 100%);
    color: white;
    box-shadow: 0 4px 20px rgba(79, 195, 247, 0.3);
}

.btn-secondary {
    background: transparent;
    color: #4FC3F7;
    border: 2px solid #4FC3F7;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(79, 195, 247, 0.5);
}

.btn-secondary:hover {
    background: rgba(79, 195, 247, 0.1);
    color: #4FC3F7;
    box-shadow: 0 8px 30px rgba(79, 195, 247, 0.3);
}

.contact-info {
    opacity: 0.9;
    font-size: 0.95em;
    line-height: 1.8;
}

/* 响应式设计 */
@media (max-width: 968px) {
    .scenario-showcase {
        grid-template-columns: 1fr;
    }
    
    .comparison-table {
        overflow-x: auto;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5em;
    }
    
    .section-title {
        font-size: 2em;
    }
    
    .feature-header {
        flex-direction: column;
        text-align: center;
    }
    
    .memory-structure,
    .behavior-timeline,
    .emotion-system {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-primary, .btn-secondary {
        width: 250px;
    }
}