/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #4F46E5;
    --primary-dark: #4338CA;
    --secondary: #06B6D4;
    --accent: #F59E0B;
    --bg: #FFFFFF;
    --bg-light: #F8FAFC;
    --bg-dark: #0F172A;
    --text: #1E293B;
    --text-light: #64748B;
    --border: #E2E8F0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --radius: 12px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text);
}

.logo-icon {
    font-size: 1.8rem;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
}

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

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

.nav-cta {
    background: var(--primary);
    color: white !important;
    padding: 8px 16px;
    border-radius: 20px;
}

.nav-cta:hover {
    background: var(--primary-dark);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero 区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 100px 0 60px;
    background: linear-gradient(135deg, var(--bg) 0%, var(--bg-light) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(79, 70, 229, 0.1) 0%, transparent 70%);
    animation: pulse 10s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 24px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 40px;
}

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

.btn {
    padding: 14px 32px;
    border-radius: 30px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    display: inline-block;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 14px rgba(79, 70, 229, 0.4);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--text);
    border: 2px solid var(--border);
}

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

/* 浮动卡片 */
.floating-cards {
    position: relative;
    height: 400px;
}

.float-card {
    position: absolute;
    background: white;
    padding: 16px 24px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    font-weight: 600;
    animation: float 6s ease-in-out infinite;
}

.float-card:nth-child(1) {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.float-card:nth-child(2) {
    top: 50%;
    right: 10%;
    animation-delay: -2s;
}

.float-card:nth-child(3) {
    bottom: 20%;
    left: 30%;
    animation-delay: -4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* 通用区域样式 */
section {
    padding: 100px 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 16px;
}

.section-desc {
    text-align: center;
    color: var(--text-light);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto 60px;
}

/* 关于我们 */
.about {
    background: var(--bg-light);
}

.stats {
    display: flex;
    justify-content: center;
    gap: 80px;
    margin-top: 60px;
}

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

.stat-num {
    display: block;
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-label {
    color: var(--text-light);
    font-size: 1rem;
}

/* 团队 */
.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.team-card {
    background: white;
    border-radius: var(--radius);
    padding: 32px 24px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: all 0.3s;
    border: 1px solid var(--border);
}

.team-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.team-card.founder {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
}

.team-card.founder .card-role,
.team-card.founder .card-desc {
    color: rgba(255, 255, 255, 0.8);
}

.card-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    margin: 0 auto 16px;
}

.founder .card-avatar {
    background: rgba(255, 255, 255, 0.2);
}

.card-rank {
    display: inline-block;
    padding: 4px 12px;
    background: var(--bg-light);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 12px;
}

.founder .card-rank {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.card-name {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.card-role {
    color: var(--primary);
    font-weight: 500;
    margin-bottom: 16px;
}

.card-desc {
    color: var(--text-light);
    font-size: 0.875rem;
    line-height: 1.6;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin-top: 16px;
}

.tag {
    padding: 4px 10px;
    background: var(--bg-light);
    border-radius: 12px;
    font-size: 0.75rem;
    color: var(--text-light);
}

/* 服务 */
.services {
    background: var(--bg-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.service-card {
    background: white;
    padding: 32px;
    border-radius: var(--radius);
    text-align: center;
    box-shadow: var(--shadow);
    transition: all 0.3s;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 16px;
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 8px;
}

.service-card p {
    color: var(--text-light);
    font-size: 0.875rem;
}

/* 记忆中心 */
.memory-center {
    background: linear-gradient(180deg, #F8FAFC 0%, #FFFFFF 100%);
}

.memory-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 32px;
}

.memory-card {
    background: white;
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 28px;
    box-shadow: var(--shadow);
}

.memory-card.featured {
    grid-column: span 2;
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.08), rgba(6, 182, 212, 0.08));
    border-color: rgba(79, 70, 229, 0.2);
}

.memory-badge {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 999px;
    background: var(--primary);
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    margin-bottom: 14px;
}

.memory-icon {
    font-size: 2rem;
    margin-bottom: 14px;
}

.memory-card h3,
.memory-panel h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.memory-card p {
    color: var(--text-light);
    margin-bottom: 16px;
}

.memory-list {
    list-style: none;
    display: grid;
    gap: 8px;
    margin-bottom: 16px;
    color: var(--text-light);
    font-size: 0.95rem;
}

.memory-list li::before {
    content: '•';
    color: var(--primary);
    margin-right: 8px;
}

.memory-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

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

.memory-actions {
    margin-top: 12px;
}

.mini-btn {
    border: 1px solid rgba(79, 70, 229, 0.18);
    background: #EEF2FF;
    color: var(--primary-dark);
    border-radius: 999px;
    padding: 8px 14px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.mini-btn:hover {
    background: #E0E7FF;
    transform: translateY(-1px);
}

.memory-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-top: 20px;
}

.memory-metrics div {
    background: rgba(255, 255, 255, 0.75);
    border: 1px solid rgba(79, 70, 229, 0.12);
    border-radius: 14px;
    padding: 14px;
}

.memory-metrics strong {
    display: block;
    margin-bottom: 6px;
}

.memory-metrics span {
    color: var(--text-light);
    font-size: 0.95rem;
}

.memory-panels {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.memory-panel {
    background: white;
    border-radius: 20px;
    padding: 28px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.doc-list {
    display: grid;
    gap: 12px;
}

.doc-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 14px 16px;
    background: var(--bg-light);
    border-radius: 14px;
    border: 1px solid #EEF2FF;
}

.doc-item span {
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.9rem;
    color: var(--text);
    word-break: break-all;
}

.doc-item em {
    font-style: normal;
    color: var(--text-light);
    font-size: 0.9rem;
}

.benchmark-panel h4 {
    margin: 18px 0 10px;
    font-size: 1rem;
}

.benchmark-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
    margin: 18px 0 20px;
}

.benchmark-card {
    background: linear-gradient(135deg, #EEF2FF, #F8FAFC);
    border: 1px solid rgba(79, 70, 229, 0.15);
    border-radius: 16px;
    padding: 16px;
}

.benchmark-card strong {
    display: block;
    font-size: 1.05rem;
    margin-bottom: 6px;
}

.benchmark-card span {
    color: var(--text-light);
    font-size: 0.92rem;
}

.benchmark-columns {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
    margin-top: 20px;
}

.benchmark-notes {
    padding-left: 18px;
    color: var(--text-light);
    display: grid;
    gap: 8px;
}

.runtime-panel {
    margin-top: 24px;
    padding-top: 6px;
    border-top: 1px solid #EEF2FF;
}

.runtime-head p {
    color: var(--text-light);
    margin-bottom: 14px;
}

.usage-live-panel {
    margin-top: 24px;
    padding-top: 6px;
    border-top: 1px solid #EEF2FF;
}

.usage-summary-shell {
    margin-top: 20px;
}

.quick-memory-shell {
    margin-top: 32px;
    margin-bottom: 24px;
    background: white;
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 24px 28px;
    box-shadow: var(--shadow);
}

.quick-memory-head h3 {
    margin-bottom: 6px;
}

.quick-memory-head p {
    color: var(--text-light);
    margin-bottom: 18px;
}

.quick-memory-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.quick-memory-btn {
    border: 1px solid rgba(79, 70, 229, 0.18);
    background: #F8FAFC;
    color: var(--text);
    border-radius: 999px;
    padding: 10px 16px;
    font-size: 0.92rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.quick-memory-btn:hover,
.quick-memory-btn.active {
    background: #EEF2FF;
    border-color: rgba(79, 70, 229, 0.35);
    color: var(--primary-dark);
}

.viewer-shell {
    margin-top: 32px;
    background: #0F172A;
    color: #E2E8F0;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.viewer-header {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: flex-start;
    padding: 24px 28px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.viewer-header h3 {
    margin-bottom: 6px;
}

.viewer-subtitle,
.viewer-meta {
    color: rgba(226,232,240,0.72);
    font-size: 0.95rem;
}

.viewer-body {
    padding: 28px;
    min-height: 260px;
    word-break: break-word;
    line-height: 1.8;
    max-height: 680px;
    overflow: auto;
}

.markdown-body {
    font-size: 0.98rem;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4 {
    color: #FFFFFF;
    margin: 1.2em 0 0.6em;
    line-height: 1.35;
}

.markdown-body h1 { font-size: 1.8rem; }
.markdown-body h2 { font-size: 1.45rem; }
.markdown-body h3 { font-size: 1.2rem; }
.markdown-body h4 { font-size: 1.05rem; }

.markdown-body p,
.markdown-body li {
    color: #CBD5E1;
}

.markdown-body ul,
.markdown-body ol {
    padding-left: 1.4rem;
    margin: 0.6em 0 1em;
}

.markdown-body pre {
    background: rgba(15, 23, 42, 0.9);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 14px;
    padding: 14px 16px;
    overflow: auto;
    margin: 1em 0;
}

.markdown-body code {
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    background: rgba(148, 163, 184, 0.14);
    padding: 0.1em 0.35em;
    border-radius: 6px;
}

.markdown-body pre code {
    background: transparent;
    padding: 0;
}

.markdown-body blockquote {
    border-left: 4px solid rgba(96, 165, 250, 0.6);
    padding-left: 14px;
    color: #94A3B8;
    margin: 1em 0;
}

.markdown-body hr {
    border: none;
    border-top: 1px solid rgba(255,255,255,0.08);
    margin: 1.5em 0;
}

.doc-item {
    cursor: pointer;
}

.doc-item.active {
    border-color: rgba(79, 70, 229, 0.35);
    background: #EEF2FF;
}

/* 即将推出 */
.coming-soon {
    background: var(--bg);
}

.feature-preview {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px 32px;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    text-decoration: none;
    color: var(--text);
    transition: all 0.3s;
    border: 1px solid var(--border);
}

.feature-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.feature-icon {
    font-size: 1.5rem;
}

.feature-name {
    font-weight: 600;
}

.feature-status {
    padding: 4px 10px;
    background: #10B981;
    color: white;
    border-radius: 12px;
    font-size: 0.75rem;
}

.feature-status.soon {
    background: var(--text-light);
}

/* 页脚 */
.footer {
    background: var(--bg-dark);
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    text-align: center;
    margin-bottom: 40px;
}

.footer-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.footer-slogan {
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 24px;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 32px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.875rem;
}

.footer-bottom p:last-child {
    margin-top: 8px;
}

/* 响应式 */
@media (max-width: 1024px) {
    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-btns {
        justify-content: center;
    }
    
    .floating-cards {
        height: 200px;
    }
    
    .stats {
        flex-direction: column;
        gap: 40px;
    }
    
    .team-grid,
    .services-grid,
    .memory-grid,
    .memory-panels,
    .benchmark-cards,
    .benchmark-columns {
        grid-template-columns: 1fr;
    }

    .memory-card.featured {
        grid-column: span 1;
    }

    .memory-metrics {
        grid-template-columns: 1fr;
    }
    
    section {
        padding: 60px 0;
    }
}