/* Hero Section: Slider Transition Enhancement */
.hero {
    height: 80vh; /* Adjusted to 80% height */
    position: relative;
    overflow: hidden;
    background: #000;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    /* Cancel fade, use horizontal slide */
    transform: translateX(100%);
    transition: transform 1s cubic-bezier(0.645, 0.045, 0.355, 1);
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
}

.slide.active {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
    z-index: 1;
}

.slide.prev {
    transform: translateX(-100%);
}

/* Text Animation for First 3 Banners */
.slide .hero-tagline, 
.slide .hero-title, 
.slide .hero-subtitle, 
.slide .hero-actions {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.23, 1, 0.32, 1);
}

.slide.active .hero-tagline { opacity: 1; transform: translateY(0); transition-delay: 0.4s; }
.slide.active .hero-title { opacity: 1; transform: translateY(0); transition-delay: 0.6s; }
.slide.active .hero-subtitle { opacity: 1; transform: translateY(0); transition-delay: 0.8s; }
.slide.active .hero-actions { opacity: 1; transform: translateY(0); transition-delay: 1s; }

/* Dynamic Glassmorphism Positioning */
.glass-box-multi {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.glass-item-unit {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 15px;
    width: fit-content;
    max-width: 400px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    opacity: 0;
    transform: translateX(-30px);
    transition: all 0.6s ease-out;
}

.slide.active .glass-item-unit { opacity: 1; transform: translateX(0); }
.slide.active .glass-item-unit:nth-child(1) { transition-delay: 0.4s; }
.slide.active .glass-item-unit:nth-child(2) { transition-delay: 0.6s; }
.slide.active .glass-item-unit:nth-child(3) { transition-delay: 0.8s; }
.slide.active .glass-item-unit:nth-child(4) { transition-delay: 1s; }

.glass-title-unit {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(20px);
    padding: 30px;
    border-radius: 20px;
    margin-bottom: 30px;
    border: 1px solid rgba(255,255,255,0.3);
    width: fit-content;
}

/* Workflow Unit Positioning */
.workflow-glass-unit {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 15px 25px;
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 15px;
    margin: 10px 0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    width: fit-content;
    opacity: 0;
    transform: scale(0.9);
    transition: all 0.5s ease-out;
}

.slide.active .workflow-glass-unit { opacity: 1; transform: scale(1); }
.slide.active .workflow-glass-unit:nth-child(1) { transition-delay: 0.3s; }
.slide.active .workflow-glass-unit:nth-child(2) { transition-delay: 0.5s; }
.slide.active .workflow-glass-unit:nth-child(3) { transition-delay: 0.7s; }
.slide.active .workflow-glass-unit:nth-child(4) { transition-delay: 0.9s; }

.workflow-icon-mini {
    width: 40px;
    height: 40px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
}

.workflow-text-mini {
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
}

/* Slider Controls */
.slider-nav {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 15px;
    z-index: 20;
}

.nav-dot {
    width: 12px;
    height: 12px;
    border: 2px solid var(--white);
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
}

.nav-dot.active {
    background: var(--accent);
    border-color: var(--accent);
    transform: scale(1.3);
}

.hero-soft-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(0, 0, 0, 0.4) 0%, transparent 70%);
}

.hero-content {
    max-width: 650px;
}

.hero-tagline {
    font-family: var(--font-serif);
    font-style: italic;
    color: var(--accent);
    font-size: 1.2rem;
    margin-bottom: 20px;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(3rem, 10vw, 5.5rem);
    line-height: 1.1;
    margin-bottom: 30px;
    color: var(--white);
    text-shadow: 0 4px 15px rgba(0,0,0,0.5);
}

.hero-title span {
    display: block;
    color: var(--accent);
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--white);
    margin-bottom: 45px;
    max-width: 600px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.5);
    font-weight: 400;
}

.hero-actions {
    display: flex;
    gap: 20px;
}

/* Trust Bar */
.trust-bar {
    padding: 60px 0;
    background: var(--bg-soft);
    border-bottom: 1px solid #eee;
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    text-align: center;
}

.trust-item .stat {
    display: block;
    font-family: var(--font-serif);
    font-size: 2.5rem;
    color: var(--primary);
}

.trust-item .label {
    font-size: 0.9rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Solutions Section */
.solutions-section {
    padding: 150px 0;
    position: relative;
}

.floral-side-deco {
    position: absolute;
    width: 300px;
    opacity: 0.1;
    z-index: 1;
    pointer-events: none;
}

.floral-side-deco.left { top: 10%; left: -50px; transform: rotate(-15deg); }
.floral-side-deco.right { bottom: 10%; right: -50px; transform: rotate(165deg); }

.card-icon {
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-soft);
    color: var(--primary);
    transition: var(--transition);
}

.solution-card:hover .card-icon {
    background: var(--primary);
    color: var(--bg-white);
}

.case-divider {
    width: 60px;
    height: 4px;
    background: var(--accent);
    margin-bottom: 30px;
}

/* Rose Deco Enhancements */
.rose-deco svg {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 5px 15px rgba(0,0,0,0.05));
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 80px;
}

.section-title {
    font-family: var(--font-serif);
    font-size: 3rem;
    color: var(--primary-dark);
    margin-bottom: 15px;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.solution-card {
    background: var(--bg-white);
    border: 1px solid #f0f0f0;
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition);
}

.solution-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 60px rgba(0,0,0,0.08);
}

.card-image {
    height: 200px;
    overflow: hidden;
    background: #f4f4f4;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.7;
    transition: var(--transition);
}

.solution-card:hover .card-image img {
    transform: scale(1.1);
    opacity: 1;
     filter: brightness(0) invert(1);
}

	.png-icon {
    width: 100px;
	height: 100px;
    transition: filter 0.3s ease;
    /* 假设原图是深青色 #00695C */
}

/* 当鼠标悬停在 .solution-card 上时，改变 .png-icon */
.solution-card:hover .png-icon {
    /* 1. brightness(0) 将图片所有颜色变为黑色 */
    /* 2. invert(1) 将黑色反转为纯白色 */
    filter: brightness(0) invert(1);
}

.card-body {
    padding: 30px;
}

.card-body h3 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.text-link {
    color: var(--accent);
    font-weight: 700;
    font-size: 0.9rem;
}

/* Featured Case Study */
.featured-case {
    padding: 100px 0;
    background: var(--primary-dark);
    color: var(--bg-white);
}

.case-wrapper {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    align-items: center;
    gap: 80px;
}

.case-image img {
    border-radius: 20px;
    box-shadow: 20px 20px 0 var(--accent);
}

.case-info .tag {
    color: var(--accent);
    letter-spacing: 3px;
    margin-bottom: 20px;
}

.serif-title {
    font-family: var(--font-serif);
    font-size: 3rem;
    line-height: 1.2;
    margin-bottom: 30px;
}

/* About Modern */
.about-modern {
    padding: 150px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 100px;
    align-items: center;
}

.lead {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 20px;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 40px;
}

.about-features .feat {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
}

.image-stack {
    position: relative;
    padding-left: 50px;
}

.main-img {
    border-radius: 12px;
}

.overlay-card {
    position: absolute;
    bottom: -30px;
    left: 0;
    background: var(--accent);
    color: var(--bg-white);
    padding: 30px;
    border-radius: 12px;
    text-align: center;
}

.overlay-card span { display: block; font-size: 0.8rem; text-transform: uppercase; }
.overlay-card strong { font-size: 2rem; }

/* Responsive Index */
@media (max-width: 1024px) {
    .solutions-grid { grid-template-columns: repeat(2, 1fr); }
    .case-wrapper, .about-grid { grid-template-columns: 1fr; gap: 50px; }
}

@media (max-width: 768px) {
    /* Hero Slider Mobile */
    .hero { height: 80vh; }
    .hero-content {
        padding: 40px 20px;
        margin: 0;
        background: linear-gradient(to bottom, rgba(0,0,0,0.5), rgba(0,0,0,0.7));
        border-radius: 0;
        box-shadow: none;
        text-align: center;
        width: 100%;
        height: 100%;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
    }
    .workflow-container-dynamic {
        
        display:none;
    }
    
    .glass-item-unit {
        
        display:none;
    }
    
    .hero-title { font-size: 2.2rem !important; color: var(--white) !important; text-shadow: 0 2px 10px rgba(0,0,0,0.3) !important; margin-bottom: 15px !important; }
    .hero-subtitle { font-size: 1.1rem !important; color: rgba(255,255,255,0.9) !important; text-shadow: none !important; margin-bottom: 25px !important; }
    .hero-tagline { color: var(--accent) !important; }
    .hero-actions { flex-direction: column; gap: 15px; width: 80%; }
    
    /* Glass Units Mobile */
    .glass-title-unit { padding: 20px; width: 90%; background: rgba(255,255,255,0.1); color: var(--white); margin: 0 auto 20px; }
    .glass-item-unit { width: 90%; background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.2); padding: 15px; margin: 0 auto 10px; }
    .glass-item-unit p { color: #eee; }
    
    .workflow-glass-unit { width: 90%; background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.2); border-radius: 10px; padding: 12px; margin: 0 auto 10px !important; }
    .workflow-text-mini { color: var(--white); }
    .workflow-icon-mini { background: var(--white); color: var(--primary); }

    /* Stats Mobile */
    .trust-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
    .trust-item .stat { font-size: 1.8rem; }
    
    .section-title { font-size: 2.2rem; }
    .serif-title { font-size: 2.4rem; }
    .solutions-grid { grid-template-columns: 1fr; }
}