/* ===== 设计系统 - 浅淡活力蓝色 ===== */
:root {
    /* 更浅淡有活力的蓝色系 */
    --primary-blue: #4A9EFF;        /* 主蓝色 - 更亮更活力 */
    --secondary-blue: #6BB6FF;      /* 次蓝色 */  
    --accent-blue: #8CC8FF;         /* 强调蓝 */
    --light-blue: #B8DAFF;          /* 浅蓝 */
    --ultra-light-blue: #E6F3FF;    /* 极浅蓝 */
    --deep-blue: #2E7BD6;           /* 深蓝 */
    
    /* 辅助颜色 */
    --white: #FFFFFF;
    --off-white: #FDFDFF;
    --gray-50: #F8FAFE;
    --gray-100: #F1F7FD;
    --gray-200: #E4F0FC;
    --gray-300: #CBD8F0;
    --gray-400: #9BB3D9;
    --gray-500: #7A92B8;
    --gray-600: #5A7297;
    --gray-700: #3A5276;
    --gray-800: #1A3255;
    --gray-900: #0A1A34;
    
    /* 产品线颜色 - 更活力 */
    --cellshot-color: #FF6B9D;      /* 粉红 */
    --experimental-color: #9D6BFF;   /* 紫色 */
    --authentic-color: #6BFFA6;      /* 绿色 */
    --future-color: #FFB56B;         /* 橙色 */
    
    /* 器官颜色 - 更柔和 */
    --lung-color: #7DD3FC;
    --kidney-color: #C084FC;
    --uterus-color: #FB7BA2;
    --specialized-color: #6EE7B7;
    --tba-color: #FBBF24;
    
    /* 字体 */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-japanese: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* 间距 */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    
    /* 动画 */
    --transition-fast: 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-normal: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-slow: 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    
    /* 阴影 */
    --shadow-sm: 0 2px 8px rgba(74, 158, 255, 0.1);
    --shadow-md: 0 4px 20px rgba(74, 158, 255, 0.15);
    --shadow-lg: 0 8px 40px rgba(74, 158, 255, 0.2);
    --shadow-xl: 0 16px 60px rgba(74, 158, 255, 0.25);
    
    /* 渐变 */
    --gradient-primary: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    --gradient-light: linear-gradient(135deg, var(--ultra-light-blue), var(--white));
    --gradient-cell: radial-gradient(circle, rgba(74, 158, 255, 0.1), transparent);
}

/* ===== 基础重置 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--gray-800);
    background: var(--off-white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

:lang(ja), .japanese-text {
    font-family: var(--font-japanese);
}

/* ===== 页面容器 ===== */
.page-container {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
}

.page-level {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transform: translateY(50px);
    transition: all var(--transition-slow);
    overflow-y: auto;
    overflow-x: hidden;
}

.page-level.active {
    opacity: 1;
    transform: translateY(0);
    z-index: 10;
}

/* ===== Level 1: 首页瀑布流 ===== */
#level-1 {
    background: var(--gradient-light);
}

.header-section {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.header-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

/* ===== 细胞粒子系统 ===== */
.cell-particles {
    position: absolute;
    width: 100%;
    height: 100%;
}

.cell {
    position: absolute;
    border-radius: 50%;
    background: var(--gradient-cell);
    animation: cellFloat 20s ease-in-out infinite;
    border: 2px solid rgba(74, 158, 255, 0.1);
}

.cell-1 {
    width: 200px;
    height: 200px;
    top: 10%;
    left: 5%;
    animation-delay: 0s;
}

.cell-2 {
    width: 150px;
    height: 150px;
    top: 60%;
    right: 10%;
    animation-delay: 7s;
}

.cell-3 {
    width: 100px;
    height: 100px;
    bottom: 20%;
    left: 15%;
    animation-delay: 14s;
}

.exosome {
    position: absolute;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent-blue), var(--secondary-blue));
    animation: exosomeFloat 15s ease-in-out infinite;
    box-shadow: 0 0 20px rgba(74, 158, 255, 0.3);
}

.exo-1 {
    top: 25%;
    right: 25%;
    animation-delay: 3s;
}

.exo-2 {
    bottom: 35%;
    left: 20%;
    animation-delay: 8s;
}

.exo-3 {
    top: 75%;
    right: 35%;
    animation-delay: 12s;
}

@keyframes cellFloat {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg) scale(1);
        opacity: 0.6;
    }
    25% {
        transform: translate(30px, -40px) rotate(90deg) scale(1.1);
        opacity: 0.8;
    }
    50% {
        transform: translate(-20px, 60px) rotate(180deg) scale(0.9);
        opacity: 0.7;
    }
    75% {
        transform: translate(-40px, -30px) rotate(270deg) scale(1.05);
        opacity: 0.6;
    }
}

@keyframes exosomeFloat {
    0%, 100% {
        transform: translate(0, 0) scale(1);
        opacity: 0.8;
    }
    33% {
        transform: translate(60px, -40px) scale(1.2);
        opacity: 1;
    }
    66% {
        transform: translate(-50px, 80px) scale(0.8);
        opacity: 0.9;
    }
}

/* ===== 实验室设备元素 ===== */
.lab-equipment {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.microscope {
    position: absolute;
    top: 15%;
    right: 5%;
    width: 80px;
    height: 120px;
    background: linear-gradient(135deg, var(--gray-300), var(--gray-400));
    border-radius: 10px 10px 40px 40px;
    opacity: 0.1;
    animation: equipmentGlow 8s ease-in-out infinite;
}

.microscope::before {
    content: '';
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 30px;
    background: var(--primary-blue);
    border-radius: 50%;
    opacity: 0.3;
}

.petri-dish {
    position: absolute;
    bottom: 20%;
    right: 15%;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: 3px solid var(--accent-blue);
    opacity: 0.2;
    animation: petriRotate 12s linear infinite;
}

.petri-dish::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    background: var(--primary-blue);
    border-radius: 50%;
    opacity: 0.5;
}

.dna-helix {
    position: absolute;
    top: 40%;
    left: 8%;
    width: 4px;
    height: 200px;
    background: linear-gradient(180deg, var(--primary-blue), transparent);
    animation: dnaRotate 20s linear infinite;
    opacity: 0.15;
}

.dna-helix::before,
.dna-helix::after {
    content: '';
    position: absolute;
    width: 12px;
    height: 12px;
    background: var(--secondary-blue);
    border-radius: 50%;
    top: 20%;
    animation: inherit;
}

.dna-helix::before {
    left: -10px;
}

.dna-helix::after {
    right: -10px;
    animation-delay: 10s;
}

@keyframes equipmentGlow {
    0%, 100% { opacity: 0.1; }
    50% { opacity: 0.2; }
}

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

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

/* ===== 头部内容 ===== */
.header-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 800px;
    padding: 2rem;
}

.logo-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 3rem;
}

.company-logo {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-lg);
    animation: logoFloat 6s ease-in-out infinite;
}

@keyframes logoFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.company-name {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(74, 158, 255, 0.2);
}

.company-subtitle {
    font-size: 1.125rem;
    color: var(--gray-600);
    font-weight: 500;
}

.hero-text h1 {
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 300;
    line-height: 1.2;
    color: var(--gray-800);
    margin-bottom: 2rem;
}

.hero-text .highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
    position: relative;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: 3rem;
    line-height: 1.8;
}

/* ===== 主按钮 ===== */
.main-buttons {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
}

.main-btn {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem 2.5rem;
    border: none;
    border-radius: 50px;
    font-size: 1.125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    min-width: 200px;
}

.about-btn {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.products-btn {
    background: var(--white);
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
    box-shadow: var(--shadow-sm);
}

.main-btn:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.about-btn:hover {
    background: linear-gradient(135deg, var(--secondary-blue), var(--accent-blue));
}

.products-btn:hover {
    background: var(--primary-blue);
    color: var(--white);
}

.btn-icon {
    font-size: 1.25rem;
}

.btn-arrow {
    font-size: 1.5rem;
    transition: transform var(--transition-fast);
}

.main-btn:hover .btn-arrow {
    transform: translateX(5px);
}

/* ===== 瀑布流内容 ===== */
.waterfall-content {
    position: relative;
}

.content-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 4rem 2rem;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.content-section:hover {
    background: rgba(74, 158, 255, 0.02);
}

.section-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
}

.section-content {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

/* ===== 区块背景效果 ===== */
.lab-bg {
    background: 
        radial-gradient(circle at 20% 30%, rgba(74, 158, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(140, 200, 255, 0.03) 0%, transparent 50%);
}

.molecular-grid {
    background-image: 
        radial-gradient(circle at 25% 25%, var(--accent-blue) 1px, transparent 1px),
        radial-gradient(circle at 75% 75%, var(--light-blue) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.1;
}

.research-bg {
    background: 
        linear-gradient(45deg, transparent 40%, rgba(74, 158, 255, 0.03) 50%, transparent 60%),
        linear-gradient(-45deg, transparent 40%, rgba(140, 200, 255, 0.02) 50%, transparent 60%);
}

.cell-culture {
    position: absolute;
    top: 10%;
    right: 5%;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: var(--gradient-cell);
    opacity: 0.15;
    animation: cellPulse 8s ease-in-out infinite;
}

@keyframes cellPulse {
    0%, 100% { transform: scale(1); opacity: 0.15; }
    50% { transform: scale(1.1); opacity: 0.25; }
}

/* ===== 区块标题 ===== */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 300;
    color: var(--gray-800);
    margin-bottom: 1rem;
    position: relative;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.section-header h3 {
    font-size: 1.5rem;
    color: var(--primary-blue);
    font-weight: 500;
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
}

/* ===== 原料管线预览 ===== */
.pipeline-preview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.pipeline-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 2rem 1rem;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    border: 1px solid rgba(74, 158, 255, 0.1);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.pipeline-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.pipeline-item:hover::before {
    transform: scaleX(1);
}

.pipeline-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.pipeline-item .item-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--white);
    margin-bottom: 1rem;
    position: relative;
}

.lung .item-icon { background: linear-gradient(135deg, var(--lung-color), #0EA5E9); }
.kidney .item-icon { background: linear-gradient(135deg, var(--kidney-color), #A855F7); }
.uterus .item-icon { background: linear-gradient(135deg, var(--uterus-color), #EC4899); }
.specialized .item-icon { background: linear-gradient(135deg, var(--specialized-color), #059669); }
.tba .item-icon { background: linear-gradient(135deg, var(--tba-color), #D97706); }

.pipeline-item span {
    font-size: 0.875rem;
    color: var(--gray-700);
    text-align: center;
    line-height: 1.5;
    font-weight: 500;
}

/* ===== 产品时间线 ===== */
.product-timeline {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 3rem;
    position: relative;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.timeline-line {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, 
        var(--cellshot-color), 
        var(--experimental-color), 
        var(--authentic-color), 
        var(--future-color)
    );
    z-index: 1;
}

.product-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
    z-index: 2;
    max-width: 200px;
}

.product-number {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 1rem;
    box-shadow: var(--shadow-md);
}

.product-item[data-order="1"] .product-number { background: var(--cellshot-color); }
.product-item[data-order="2"] .product-number { background: var(--experimental-color); }
.product-item[data-order="3"] .product-number { background: var(--authentic-color); }
.product-item[data-order="4"] .product-number { background: var(--future-color); }

.product-info h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 0.5rem;
}

.product-info p {
    font-size: 0.875rem;
    color: var(--gray-600);
    line-height: 1.5;
}

/* ===== 点击提示 ===== */
.click-hint {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
    padding: 1rem;
    background: rgba(74, 158, 255, 0.1);
    border-radius: 50px;
    color: var(--primary-blue);
    font-size: 0.875rem;
    font-weight: 500;
    animation: hintPulse 2s ease-in-out infinite;
}

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

/* ===== Level 2: 详细页面 ===== */
.level-header {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(74, 158, 255, 0.1);
    padding: 1.5rem 2rem;
    display: flex;
    align-items: center;
    gap: 2rem;
    z-index: 100;
}

.back-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.5rem;
    background: var(--gradient-primary);
    color: var(--white);
    border: none;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.back-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.level-header h1 {
    font-size: 2rem;
    font-weight: 300;
    color: var(--gray-800);
}

/* ===== About Us 页面样式 ===== */
.about-intro-section .cell-research-bg {
    background: 
        radial-gradient(ellipse at 30% 20%, rgba(74, 158, 255, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 80%, rgba(140, 200, 255, 0.05) 0%, transparent 50%);
}

.company-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 3rem;
}

.company-card {
    position: relative;
    padding: 3rem;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(15px);
    border-radius: 25px;
    border: 1px solid rgba(74, 158, 255, 0.1);
    transition: all var(--transition-normal);
    overflow: hidden;
}

.company-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.card-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-light);
    opacity: 0.5;
}

.card-icon {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
    position: relative;
    z-index: 2;
}

.tiptop-card .card-icon {
    background: var(--gradient-primary);
    box-shadow: var(--shadow-md);
}

.tiptop-card .card-icon img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
}

.cellshot-card .card-icon {
    background: linear-gradient(135deg, var(--cellshot-color), #F472B6);
}

.cellshot-icon .cell-nucleus {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--white);
    position: relative;
}

.cellshot-icon .cell-nucleus::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 25px;
    height: 25px;
    border-radius: 50%;
    background: var(--cellshot-color);
}

.company-card h3 {
    font-size: 2rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 1rem;
    position: relative;
    z-index: 2;
}

.company-card p {
    font-size: 1.125rem;
    color: var(--gray-600);
    line-height: 1.6;
    position: relative;
    z-index: 2;
}

.cell-decoration {
    position: absolute;
    top: 20px;
    right: 20px;
    display: flex;
    gap: 10px;
}

.deco-cell,
.deco-exosome {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    animation: decorationFloat 4s ease-in-out infinite;
}

.deco-cell {
    background: var(--primary-blue);
    opacity: 0.3;
}

.deco-exosome {
    background: var(--cellshot-color);
    opacity: 0.4;
    animation-delay: 2s;
}

@keyframes decorationFloat {
    0%, 100% { transform: translateY(0); opacity: 0.3; }
    50% { transform: translateY(-5px); opacity: 0.6; }
}

/* ===== 核心价值样式 ===== */
.core-values-section {
    background: linear-gradient(135deg, var(--ultra-light-blue), var(--white));
}

.lab-equipment-bg {
    background: 
        radial-gradient(circle at 20% 40%, rgba(74, 158, 255, 0.06) 0%, transparent 50%),
        radial-gradient(circle at 80% 60%, rgba(140, 200, 255, 0.04) 0%, transparent 50%);
}

.core-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.core-item {
    position: relative;
    padding: 3rem;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(15px);
    border-radius: 20px;
    border: 1px solid rgba(74, 158, 255, 0.1);
    transition: all var(--transition-normal);
    overflow: hidden;
}

.core-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.core-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--white);
    margin-bottom: 2rem;
    box-shadow: var(--shadow-md);
}

.core-content h4 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 1rem;
}

.core-content p {
    color: var(--gray-600);
    line-height: 1.7;
}

.lab-element {
    position: absolute;
    opacity: 0.1;
    pointer-events: none;
}

.microscope-element {
    top: 10px;
    right: 10px;
    width: 40px;
    height: 60px;
    background: var(--gray-400);
    border-radius: 5px;
}

.petri-element {
    bottom: 10px;
    right: 10px;
    width: 35px;
    height: 35px;
    border: 2px solid var(--primary-blue);
    border-radius: 50%;
}

.beaker-element {
    top: 50%;
    right: 15px;
    width: 25px;
    height: 40px;
    background: linear-gradient(180deg, transparent 30%, var(--accent-blue) 30%);
    border-radius: 0 0 15px 15px;
    border: 2px solid var(--gray-400);
}

.inci-note {
    margin-top: 2rem;
    padding: 1.5rem;
    background: rgba(74, 158, 255, 0.05);
    border-radius: 15px;
    border-left: 4px solid var(--primary-blue);
    text-align: center;
}

.inci-note p {
    color: var(--gray-600);
    font-size: 0.875rem;
    margin: 0;
}

/* ===== 技术背景样式 ===== */
.technology-section {
    background: var(--gradient-light);
}

.research-lab-bg {
    background: 
        radial-gradient(ellipse at 25% 25%, rgba(74, 158, 255, 0.04) 0%, transparent 50%),
        radial-gradient(ellipse at 75% 75%, rgba(140, 200, 255, 0.03) 0%, transparent 50%);
}

.molecular-structure {
    position: absolute;
    top: 20%;
    right: 10%;
    width: 200px;
    height: 200px;
    background: 
        radial-gradient(circle at 30% 30%, var(--primary-blue) 2px, transparent 2px),
        radial-gradient(circle at 70% 70%, var(--accent-blue) 2px, transparent 2px);
    background-size: 40px 40px;
    opacity: 0.1;
    animation: structureRotate 30s linear infinite;
}

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

.achievements-showcase {
    margin-bottom: 4rem;
}

.achievements-showcase h3 {
    text-align: center;
    font-size: 1.75rem;
    color: var(--primary-blue);
    font-weight: 500;
    margin-bottom: 3rem;
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.achievement-card {
    text-align: center;
    padding: 2rem 1rem;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(15px);
    border-radius: 20px;
    border: 1px solid rgba(74, 158, 255, 0.1);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.achievement-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

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

.achievement-number {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--primary-blue);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.achievement-label {
    font-size: 0.875rem;
    color: var(--gray-600);
    font-weight: 500;
    line-height: 1.4;
}

.tech-platform {
    max-width: 1000px;
    margin: 0 auto;
}

.tech-platform h3 {
    text-align: center;
    font-size: 1.75rem;
    color: var(--primary-blue);
    font-weight: 500;
    margin-bottom: 3rem;
}

.tech-features {
    display: grid;
    gap: 2rem;
}

.tech-feature {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
    padding: 2.5rem;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(15px);
    border-radius: 20px;
    border: 1px solid rgba(74, 158, 255, 0.1);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.tech-feature:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-number {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
    box-shadow: var(--shadow-sm);
}

.feature-content h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 1rem;
    line-height: 1.4;
}

.feature-content p {
    color: var(--gray-600);
    line-height: 1.6;
    margin: 0;
}

.feature-visual {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 40px;
    height: 40px;
    opacity: 0.1;
}

.cell-extraction {
    background: radial-gradient(circle, var(--primary-blue) 2px, transparent 2px);
    background-size: 8px 8px;
    border-radius: 50%;
}

.exosome-isolation {
    border: 2px solid var(--secondary-blue);
    border-radius: 50%;
    position: relative;
}

.exosome-isolation::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 15px;
    height: 15px;
    background: var(--accent-blue);
    border-radius: 50%;
}

.publication-visual {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    border-radius: 5px;
    position: relative;
}

.publication-visual::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 8px;
    right: 8px;
    height: 2px;
    background: var(--white);
    opacity: 0.7;
}

.patent-visual {
    border: 2px solid var(--primary-blue);
    border-radius: 10px;
    background: linear-gradient(45deg, transparent 30%, var(--accent-blue) 30%, var(--accent-blue) 70%, transparent 70%);
}

.ai-system {
    background: 
        radial-gradient(circle at 25% 25%, var(--primary-blue) 1px, transparent 1px),
        radial-gradient(circle at 75% 75%, var(--secondary-blue) 1px, transparent 1px);
    background-size: 10px 10px;
    border-radius: 8px;
}

/* ===== Products 页面样式 ===== */
.pipeline-details-section .lab-equipment-bg {
    background: 
        radial-gradient(circle at 30% 20%, rgba(74, 158, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 70% 80%, rgba(140, 200, 255, 0.03) 0%, transparent 50%);
}

.cell-cultivation {
    position: absolute;
    top: 15%;
    right: 8%;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: var(--gradient-cell);
    opacity: 0.1;
    animation: cultivationPulse 10s ease-in-out infinite;
}

@keyframes cultivationPulse {
    0%, 100% { transform: scale(1); opacity: 0.1; }
    50% { transform: scale(1.2); opacity: 0.2; }
}

.pipeline-detailed-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.pipeline-card {
    position: relative;
    padding: 2.5rem;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(15px);
    border-radius: 25px;
    border: 1px solid rgba(74, 158, 255, 0.1);
    cursor: pointer;
    transition: all var(--transition-normal);
    overflow: hidden;
}

.pipeline-card:hover {
    transform: translateY(-15px);
    box-shadow: var(--shadow-xl);
}

.pipeline-card .card-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-light);
    opacity: 0.3;
}

.card-visual {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 80px;
    height: 80px;
}

.organ-visual {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    opacity: 0.1;
    animation: organPulse 6s ease-in-out infinite;
}

.lung-visual { background: linear-gradient(135deg, var(--lung-color), #0EA5E9); }
.kidney-visual { background: linear-gradient(135deg, var(--kidney-color), #A855F7); }
.uterus-visual { background: linear-gradient(135deg, var(--uterus-color), #EC4899); }
.specialized-visual { background: linear-gradient(135deg, var(--specialized-color), #059669); }
.tba-visual { background: linear-gradient(135deg, var(--tba-color), #D97706); }

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

.cell-particles {
    position: absolute;
    width: 100%;
    height: 100%;
}

.cell-particles .particle {
    position: absolute;
    width: 6px;
    height: 6px;
    background: var(--accent-blue);
    border-radius: 50%;
    animation: particleFloat 8s ease-in-out infinite;
}

.cell-particles .particle:nth-child(1) {
    top: 20%;
    left: 15%;
    animation-delay: 0s;
}

.cell-particles .particle:nth-child(2) {
    top: 60%;
    right: 20%;
    animation-delay: 2s;
}

.cell-particles .particle:nth-child(3) {
    bottom: 25%;
    left: 70%;
    animation-delay: 4s;
}

@keyframes particleFloat {
    0%, 100% { transform: translate(0, 0); opacity: 0.5; }
    50% { transform: translate(10px, -10px); opacity: 0.8; }
}

.card-content {
    position: relative;
    z-index: 2;
}

.pipeline-card .card-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--white);
    margin-bottom: 2rem;
    box-shadow: var(--shadow-md);
}

.lung .card-icon { background: linear-gradient(135deg, var(--lung-color), #0EA5E9); }
.kidney .card-icon { background: linear-gradient(135deg, var(--kidney-color), #A855F7); }
.uterus .card-icon { background: linear-gradient(135deg, var(--uterus-color), #EC4899); }
.specialized .card-icon { background: linear-gradient(135deg, var(--specialized-color), #059669); }
.tba .card-icon { background: linear-gradient(135deg, var(--tba-color), #D97706); }

.pipeline-card h4 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.pipeline-card p {
    color: var(--gray-600);
    line-height: 1.6;
    margin: 0;
}

.card-hover-effect {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(74, 158, 255, 0.1), transparent);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.pipeline-card:hover .card-hover-effect {
    opacity: 1;
}

/* ===== 产品线详情 ===== */
.product-lines-details-section {
    background: var(--gradient-light);
}

.manufacturing-bg {
    background: 
        radial-gradient(ellipse at 20% 30%, rgba(74, 158, 255, 0.04) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 70%, rgba(140, 200, 255, 0.03) 0%, transparent 50%);
}

.product-lines-detailed {
    display: grid;
    gap: 3rem;
}

.product-line-card {
    display: grid;
    grid-template-columns: 100px 200px 1fr;
    gap: 2rem;
    align-items: center;
    padding: 3rem;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(15px);
    border-radius: 25px;
    border: 1px solid rgba(74, 158, 255, 0.1);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.product-line-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.line-number {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.cellshot .line-number { background: var(--cellshot-color); }
.experimental .line-number { background: var(--experimental-color); }
.authentic .line-number { background: var(--authentic-color); }
.future .line-number { background: var(--future-color); }

.line-visual {
    position: relative;
    width: 150px;
    height: 100px;
}

.product-visual {
    width: 100%;
    height: 100%;
    border-radius: 15px;
    opacity: 0.2;
    position: relative;
}

.cellshot-visual {
    background: linear-gradient(135deg, var(--cellshot-color), #F472B6);
}

.experimental-visual {
    background: linear-gradient(135deg, var(--experimental-color), #A855F7);
}

.authentic-visual {
    background: linear-gradient(135deg, var(--authentic-color), #10B981);
}

.future-visual {
    background: linear-gradient(135deg, var(--future-color), #F59E0B);
    position: relative;
}

.future-visual::before {
    content: '?';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2rem;
    color: var(--white);
    font-weight: bold;
}

.molecular-bonds,
.injection-visual,
.purity-indicator,
.innovation-glow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.3;
}

.molecular-bonds {
    background: 
        radial-gradient(circle at 25% 25%, var(--cellshot-color) 1px, transparent 1px),
        radial-gradient(circle at 75% 75%, var(--cellshot-color) 1px, transparent 1px);
    background-size: 15px 15px;
}

.injection-visual {
    background: linear-gradient(45deg, transparent 40%, var(--experimental-color) 45%, var(--experimental-color) 55%, transparent 60%);
}

.purity-indicator {
    background: repeating-linear-gradient(45deg, transparent, transparent 5px, var(--authentic-color) 5px, var(--authentic-color) 8px);
}

.innovation-glow {
    background: radial-gradient(circle, var(--future-color), transparent);
    animation: innovationPulse 3s ease-in-out infinite;
}

@keyframes innovationPulse {
    0%, 100% { opacity: 0.2; }
    50% { opacity: 0.5; }
}

.line-content h3 {
    font-size: 2rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 1rem;
}

.line-content p {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.coming-soon {
    color: var(--future-color);
    font-weight: 600;
}

.line-details {
    font-size: 0.875rem;
    color: var(--gray-500);
    font-style: italic;
}

/* ===== 模态框 ===== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
}

.modal-content {
    position: relative;
    background: var(--white);
    border-radius: 25px;
    padding: 3rem;
    max-width: 600px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: modalSlideUp 0.4s ease-out;
}

@keyframes modalSlideUp {
    from {
        opacity: 0;
        transform: translateY(50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gray-200);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--gray-300);
    transform: scale(1.1);
}

/* ===== 固定下载按钮 ===== */
.download-fab {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 1500;
}

.fab-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: var(--white);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
}

.fab-btn:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.fab-tooltip {
    position: absolute;
    bottom: 70px;
    right: 0;
    background: var(--gray-800);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.875rem;
    white-space: nowrap;
    opacity: 0;
    transform: translateY(10px);
    transition: all var(--transition-fast);
    pointer-events: none;
}

.download-fab:hover .fab-tooltip {
    opacity: 1;
    transform: translateY(0);
}

.fab-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    right: 20px;
    border: 5px solid transparent;
    border-top-color: var(--gray-800);
}

/* ===== 响应式设计 ===== */
@media (max-width: 1024px) {
    .header-content {
        max-width: 600px;
    }
    
    .company-name {
        font-size: 2.5rem;
    }
    
    .main-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .main-btn {
        width: 100%;
        max-width: 300px;
    }
    
    .pipeline-preview {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .product-timeline {
        flex-direction: column;
        gap: 2rem;
    }
    
    .timeline-line {
        display: none;
    }
    
    .company-cards {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .core-grid {
        grid-template-columns: 1fr;
    }
    
    .achievements-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tech-feature {
        flex-direction: column;
        text-align: center;
    }
    
    .pipeline-detailed-grid {
        grid-template-columns: 1fr;
    }
    
    .product-line-card {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .page-container {
        height: auto;
    }
    
    .page-level {
        position: relative;
        height: auto;
        overflow: visible;
    }
    
    .header-section {
        height: auto;
        min-height: 100vh;
        padding: 2rem 1rem;
    }
    
    .header-content {
        padding: 1rem;
    }
    
    .company-logo {
        width: 80px;
        height: 80px;
    }
    
    .company-name {
        font-size: 2rem;
    }
    
    .hero-text h1 {
        font-size: 1.75rem;
    }
    
    .content-section {
        padding: 2rem 1rem;
        cursor: default;
    }
    
    .section-content {
        padding: 0;
    }
    
    .pipeline-preview {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .pipeline-item {
        padding: 1.5rem 1rem;
    }
    
    .level-header {
        padding: 1rem;
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .level-header h1 {
        font-size: 1.5rem;
    }
    
    .company-cards {
        gap: 1.5rem;
    }
    
    .company-card {
        padding: 2rem 1.5rem;
    }
    
    .core-item {
        padding: 2rem 1.5rem;
    }
    
    .achievements-grid {
        grid-template-columns: 1fr;
    }
    
    .tech-feature {
        padding: 2rem 1.5rem;
    }
    
    .pipeline-card {
        padding: 2rem 1.5rem;
    }
    
    .product-line-card {
        padding: 2rem 1.5rem;
    }
    
    .modal-content {
        padding: 2rem 1.5rem;
        margin: 1rem;
    }
    
    .download-fab {
        bottom: 1rem;
        right: 1rem;
    }
    
    .fab-btn {
        width: 50px;
        height: 50px;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .company-name {
        font-size: 1.75rem;
    }
    
    .hero-text h1 {
        font-size: 1.5rem;
    }
    
    .main-btn {
        padding: 1rem 1.5rem;
        font-size: 1rem;
    }
    
    .section-header h2 {
        font-size: 1.75rem;
    }
    
    .section-header h3 {
        font-size: 1.25rem;
    }
    
    .company-card h3 {
        font-size: 1.5rem;
    }
    
    .core-content h4 {
        font-size: 1.25rem;
    }
    
    .achievement-number {
        font-size: 2.5rem;
    }
    
    .tech-feature h4 {
        font-size: 1.125rem;
    }
    
    .pipeline-card h4 {
        font-size: 1.25rem;
    }
    
    .line-content h3 {
        font-size: 1.5rem;
    }
}