/* SCL90专用首页样式 - 优化版 */

/* 色彩变量定义 */
:root {
    /* 主色系统 - 专业医疗蓝绿色调 */
    --primary-blue: #1976D2;
    --primary-green: #2E7D32;
    --primary-purple: #6750A4;
    --primary-light: #E3F2FD;
    --primary-green-light: #E8F5E8;
    
    /* 背景色系统 */
    --bg-primary: #F8FBF9;
    --bg-secondary: #FFFFFF;
    --bg-tertiary: #F5F7FA;
    
    /* 文字色系统 */
    --text-primary: #263238;
    --text-secondary: #546E7A;
    --text-tertiary: #90A4AE;
    --text-white: #FFFFFF;
    
    /* 强调色系统 */
    --accent-orange: #FF9800;
    --accent-gold: #FFB74D;
    --success-green: #4CAF50;
    --warning-red: #E57373;
    
    /* 阴影系统 */
    --shadow-soft: 0 2px 8px rgba(25, 118, 210, 0.08);
    --shadow-medium: 0 4px 16px rgba(25, 118, 210, 0.12);
    --shadow-strong: 0 8px 24px rgba(25, 118, 210, 0.16);
    --shadow-xl: 0 12px 40px rgba(25, 118, 210, 0.2);
}

/* Logo样式优化 */
.logo {
    display: flex;
    align-items: center;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-blue);
    text-decoration: none;
}

.logo svg {
    color: var(--primary-green);
}

/* Hero Banner - 全新设计 */
.hero-banner {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-green) 100%);
    color: var(--text-white);
    padding: 80px 0 100px;
    position: relative;
    overflow: hidden;
}

.hero-banner::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='%23ffffff' fill-opacity='0.05'%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") repeat;
    opacity: 0.3;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1.25rem;
    border-radius: 50px;
    font-size: 0.9rem;
    margin-bottom: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: fadeInDown 0.6s ease-out;
}

.badge-icon {
    width: 20px;
    height: 20px;
    background: var(--success-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: bold;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    line-height: 1.1;
    letter-spacing: -0.02em;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
    animation: fadeInUp 0.6s ease-out 0.2s both;
    color: var(--text-primary); /* 使用主题深灰色，避免纯黑 */
}

.hero-subtitle {
    font-size: 1.3rem;
    font-weight: 300;
    letter-spacing: 2px;
    opacity: 0.9;
    margin-bottom: 1.5rem;
    font-style: italic;
    animation: fadeInUp 0.6s ease-out 0.3s both;
}

.hero-description {
    font-size: 1.15rem;
    line-height: 1.8;
    opacity: 0.95;
    max-width: 700px;
    margin: 0 auto 3rem;
    animation: fadeInUp 0.6s ease-out 0.4s both;
}

/* Hero Stats Cards */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1.5rem;
    max-width: 700px;
    margin: 0 auto 3rem;
    animation: fadeInUp 0.6s ease-out 0.5s both;
}

.stat-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 16px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
}

.stat-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.stat-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    display: block;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    display: block;
    line-height: 1;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.9;
    display: block;
}

/* Hero Actions */
.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.6s ease-out 0.6s both;
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.btn-primary {
    background: white;
    color: var(--primary-blue);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

/* About SCL90 Section */
.about-scl90 {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.section-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.scl90-intro {
    max-width: 1000px;
    margin: 0 auto;
}

.intro-content {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 4rem;
    align-items: center;
    margin-bottom: 4rem;
    background: var(--primary-light);
    padding: 3rem;
    border-radius: 20px;
}

.intro-text {
    flex: 1;
}

.intro-subtitle {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-green);
    margin-bottom: 1.5rem;
}

.intro-text p {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.intro-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.circle-chart {
    animation: rotateIn 1s ease-out;
}

/* Dimensions Section */
.dimensions-section {
    background: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: var(--shadow-soft);
}

.dimensions-title {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--primary-blue);
    text-align: center;
    margin-bottom: 2.5rem;
}

.dimensions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1.5rem;
}

.dimension-item {
    background: var(--bg-primary);
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.dimension-item:hover {
    transform: translateY(-5px);
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-medium);
}

.dimension-icon {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
    display: block;
}

.dimension-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.dimension-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Features Section */
.features {
    padding: 80px 0;
    background: var(--bg-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: white;
    padding: 2.5rem 2rem;
    border-radius: 16px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--primary-light);
    box-shadow: var(--shadow-soft);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-blue);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-green) 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    margin: 0 auto 1.5rem;
    transition: transform 0.3s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
}

.feature-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.feature-description {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* FAQ Section */
.faq-section {
    padding: 80px 0;
    background: white;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
        background: var(--bg-primary);
        border-radius: 12px;
    padding: 2rem;
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--primary-blue);
    transition: all 0.3s ease;
}

.faq-item:hover {
    box-shadow: var(--shadow-medium);
    transform: translateX(5px);
}

.faq-question {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.faq-question h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.faq-answer {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.faq-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-green) 100%);
    color: white;
    border-radius: 8px;
    display: flex;
    align-items: center;
        justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.faq-answer p {
        font-size: 1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin: 0;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--primary-blue) 100%);
    color: white;
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-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='%23ffffff' 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") repeat;
    opacity: 0.5;
}

.cta-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.cta-description {
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
}

.cta-note {
    margin-top: 1.5rem;
    font-size: 0.95rem;
    opacity: 0.9;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

/* Footer */
.footer {
    background: var(--text-primary);
    color: var(--text-white);
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-white);
}

.footer-description {
    color: var(--text-tertiary);
    line-height: 1.6;
    font-size: 0.95rem;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--text-tertiary);
    text-decoration: none;
    transition: color 0.2s ease;
    font-size: 0.95rem;
}

.footer-links a:hover {
    color: var(--text-white);
}

.footer-bottom {
    border-top: 1px solid rgba(144, 164, 174, 0.3);
    padding-top: 1.5rem;
    text-align: center;
}

.footer-bottom p {
    color: var(--text-tertiary);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.footer-disclaimer {
    color: var(--accent-orange);
    font-weight: 500;
}

/* Animations */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes rotateIn {
    from {
        opacity: 0;
        transform: rotate(-180deg) scale(0.5);
    }
    to {
        opacity: 1;
        transform: rotate(0) scale(1);
    }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .intro-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .hero-banner {
        padding: 60px 0 80px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .btn-large {
        width: 100%;
        max-width: 300px;
    }
    
    .intro-content {
        padding: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .dimensions-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-title {
        font-size: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .stat-card {
        padding: 1.25rem;
    }
    
    .dimensions-grid {
        grid-template-columns: 1fr;
    }
    
    .intro-content,
    .dimensions-section {
        padding: 1.5rem;
    }
    
    .faq-item {
        padding: 1.5rem;
    }
}