/* Hero Section */
        .hero {
            display: flex;
            margin-top: 80px;
        }

        .hero-left {
            flex: 1;
            background: linear-gradient(135deg, #111 0%, #111 100%);
            color: white;
            padding: 100px 20px 100px 13%;
            max-width: 1200px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            position: relative;
            overflow: hidden;
            align-items: center;
        }

    

        @keyframes pulse {
            0%, 100% { transform: scale(1); opacity: 0.5; }
            50% { transform: scale(1.2); opacity: 0.8; }
        }

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

        .hero-left h1 {
            font-size: 44px;
            font-weight: 700;
            margin-bottom: 30px;
            line-height: 1.25;
            letter-spacing: -1.5px;
            animation: fadeInUp 0.8s ease;
        }

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

        .hero-left p {
            font-size: 18px;
            color: rgba(255,255,255,0.8);
            margin-bottom: 50px;
            line-height: 1.8;
            animation: fadeInUp 0.8s ease 0.2s backwards;
        }

        .hero-buttons {
            display: flex;
            gap: 20px;
            animation: fadeInUp 0.8s ease 0.4s backwards;
        }

        .btn {
            padding: 18px 40px;
            border: 2px solid rgba(255,255,255,0.3);
            background: transparent;
            color: white;
            cursor: pointer;
            font-size: 15px;
            font-weight: 500;
            border-radius: 50px;
            transition: all 0.4s ease;
            font-family: 'Noto Sans KR', sans-serif;
        }

        .btn:hover {
            background: white;
            color: #1a1a2e;
            border-color: white;
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(255,255,255,0.2);
        }

        .slider-controls {
            display: flex;
            align-items: center;
            gap: 25px;
            animation: fadeInUp 0.8s ease 0.6s backwards;
        }

        .slider-btn {
            width: 45px;
            height: 45px;
            border: 2px solid rgba(255,255,255,0.3);
            background: rgba(255,255,255,0.05);
            color: white;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            border-radius: 50%;
            transition: all 0.3s ease;
            backdrop-filter: blur(10px);
        }

        .slider-btn:hover {
            background: rgba(255,255,255,0.15);
            border-color: white;
            transform: scale(1.1);
        }

        .slider-progress {
            flex: 1;
            height: 3px;
            background: rgba(255,255,255,0.2);
            border-radius: 10px;
            position: relative;
            overflow: hidden;
        }

        .slider-progress::after {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            height: 100%;
            width: 40%;
            background: linear-gradient(90deg, #FF6200, #ff9900);
            border-radius: 10px;
            animation: slideProgress 4s ease-in-out infinite;
        }

        @keyframes slideProgress {
            0%, 100% { width: 20%; }
            50% { width: 80%; }
        }

        .slider-count {
            color: rgba(255,255,255,0.6);
            font-size: 16px;
            font-weight: 500;
        }

        .hero-right {
            flex: 1;
            background-image: url('../img/main_slide.png'); 
            background-size: cover; 
            background-repeat: no-repeat; 
            background-position: center; 
            position: relative;
            overflow: hidden;
        }

 
        @keyframes rotate {
            from { transform: translate(-50%, -50%) rotate(0deg); }
            to { transform: translate(-50%, -50%) rotate(360deg); }
        }

        .hero-image-placeholder {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 70%;
            height: 70%;
            background: rgba(255,255,255,0.05);
            border-radius: 30px;
            backdrop-filter: blur(20px);
            border: 1px solid rgba(255,255,255,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: rgba(255,255,255,0.5);
        }

        /* Section Styles */
        .section {
            padding: 120px 8%;
            text-align: center;
        }

        .section-label {
            color: #FF6200;
            font-size: 14px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 3px;
            margin-bottom: 20px;
            display: inline-block;
        }

        .section-title {
            font-size: 48px;
            font-weight: 800;
            margin-bottom: 30px;
            line-height: 1.3;
            letter-spacing: -1px;
            color: #111;
        }

        .section-subtitle {
            font-size: 18px;
            color: #666;
            margin-bottom: 60px;
            line-height: 1.5;
            max-width: 900px;
            margin-left: auto;
            margin-right: auto;
        }

        .highlight {
            color: #FF6200;
            position: relative;
            display: inline-block;
        }

        .btn-primary {
            padding: 18px 50px;
            background: linear-gradient(135deg, #FF6200 0%, #ff9900 100%);
            color: white;
            border: none;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            border-radius: 50px;
            transition: all 0.4s ease;
            box-shadow: 0 10px 30px rgba(255, 145, 0, 0.3);
            font-family: 'Noto Sans KR', sans-serif;
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 40px rgba(255, 166, 0, 0.4);
        }
        

        /* Features Grid */
        /* Features Grid */
.features-section {
    background: linear-gradient(180deg, #f8f9fa 0%, #ffffff 100%);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    margin-top: 80px;
    max-width: 1440px;
    margin-left: auto;
    margin-right: auto;
}

.feature-card {
    background: white;
    padding: 50px 45px;
    border-radius: 24px;
    box-shadow: 0 10px 50px rgba(0,0,0,0.06);
    text-align: left;
    position: relative;
    overflow: hidden;
    transition: all 0.4s ease;
    border: 1px solid rgba(0,0,0,0.05);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #FF6200, #ff9900);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(255, 166, 0, 0.15);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-badge {
    display: inline-block;
    padding: 4px 12px;
    background: linear-gradient(135deg, #FF6200, #ff9900);
    color: white;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 14px;
    letter-spacing: 0.5px;
}

.feature-card h3 {
    font-size: 22px;
    margin-bottom: 12px;
    font-weight: 700;
    line-height: 1.4;
    letter-spacing: -0.5px;
    color: #3f3f3f;
}

.feature-card p {
    color: #666;
    line-height: 1.5;
    font-size: 16px;
}

.robot-illustration {
    position: absolute;
    right: 15px;
    top: 40px;
    width: 200px;
    height: 200px;
    background: no-repeat center / contain;
    opacity: 0.2; 
    pointer-events: none;
    z-index: 1;
    transition: all 0.4s ease;
}

/* 각 카드별 이미지 다르게 지정 */
.feature-card:nth-child(1) .robot-illustration {
    background-image: url('../img/bot1.png');
}

.feature-card:nth-child(2) .robot-illustration {
    background-image: url('../img/bot2.png');
}

.feature-card:nth-child(3) .robot-illustration {
    background-image: url('../img/bot3.png');
}

.feature-card:nth-child(4) .robot-illustration {
    background-image: url('../img/bot4.png');
}


/* 텍스트는 이미지 위에 표시 */
.feature-card > *:not(.robot-illustration) {
    position: relative;
    z-index: 2;
}

/* Hover 시 살짝 강조 효과 */
.feature-card:hover .robot-illustration {
    opacity: 0.7;
    transform: scale(1.05);
}


@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }


    .robot-illustration {
       position: absolute;
        right: -70px;
        top: 0;
        width: 480px;
        height: 480px;
        width: 350px;
        height: 350px;
        opacity: 0.4;
    }
}

@media (max-width: 600px) {
    .highlight{
        font-weight: 800;
    }
    .features-grid {
        margin-top: 0;
    }
    .feature-card {
        padding: 30px 25px;
        text-align: center;
    }

    .feature-card h3 {
        font-size: 20px;
    }

    .feature-card p {
        font-size: 14px;
    }

    .robot-illustration {
        display: none;
    }
}


/* Tabs Section */
        .tabs {
            display: flex;
            justify-content: center;
            gap: 60px;
            border-bottom: 2px solid #e9ecef;
            padding-bottom: 0;
        }

        .tab {
            padding: 20px 0;
            cursor: pointer;
            color: #999;
            font-size: 18px;
            font-weight: 600;
            border-bottom: 3px solid transparent;
            transition: all 0.3s ease;
            position: relative;
        }

        .tab.active {
            color: #FF6200;
            border-bottom-color: #FF6200;
        }

        .tab:hover {
            color: #FF6200;
        }

        /* Tab Content */
        .tab-content {
            display: none;
            opacity: 0;
            transition: opacity 0.5s ease;
        }

        .tab-content.active {
            display: block;
            animation: fadeInContent 0.5s ease forwards;
        }

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

        .content-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 80px;
            max-width: 1440px;
            margin: 60px auto 0;
            align-items: center;
        }

        .content-image {
            width: 100%;
            height: 500px;
            background: url('../img/field_1.png');
            background-repeat: no-repeat;
            background-size: cover;
            border-radius: 24px;
            display: flex;
            align-items: flex-end;
            justify-content: left;
            color: white;
            position: relative;
            overflow: hidden;
            padding: 40px;
        }
        .content-title{
            font-size: 24px;
            font-weight: 600;
            text-align: left;
        }
        .content-info{
            font-size: 16px;
            text-align: left;
        }

        .content-list {
            text-align: left;
        }

        .content-item {
            display: flex;
            align-items: center;
            gap: 25px;
            padding: 20px 12px; 
            border-radius: 16px;
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .content-item:hover {
            background: #faf9f8;
            transform: translateX(10px);
        }

        .content-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, #FF6200, #ff9900);
            border-radius: 16px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 8px 24px rgba(255, 182, 24, 0.25);
        }

        .content-text h4 {
            font-size: 20px;
            font-weight: 700;
            color: #111;
        }

        .content-text p {
            color: #666;
            font-size: 15px;
            line-height: 1.4;
            font-weight: 400;
        }
        
        .partners {
            background: linear-gradient(180deg, #f8f9fa 0%, #e9ecef 100%);
            padding: 100px 8%;
            text-align: center; /* 그리드 전체를 중앙 정렬하기 위해 추가 */
            position: relative;
            overflow: hidden;
        }
        ..partners::before {
    content: '';
    position: absolute;
    /* 중앙 정렬 */
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%); /* 정확한 중앙 정렬 */
    
    width: 600px;
    height: 600px;
    /* 첫 번째 배경 효과 */
    background: radial-gradient(circle, rgb(255, 164, 28) 0%, transparent 70%);
    /* 첫 번째 애니메이션 */
    animation: pulse 8s ease-in-out infinite; 
}

.partners::after {
    content: '';
    position: absolute;
    /* 중앙 정렬 */
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%); /* 정확한 중앙 정렬 */

    /* 크기를 조금 다르게 설정하여 시각적인 구분 */
    width: 750px; 
    height: 750px;
    /* 색상 또는 그라데이션을 다르게 설정 */
    background: radial-gradient(circle, rgb(86, 172, 255) 0%, transparent 70%); 
    /* 애니메이션 속도를 다르게 설정하여 겹치는 효과를 만듦 */
    animation: pulse 12s ease-in-out infinite; 
    /* z-index를 낮게 설정하여 ::before 아래에 배치 (선택 사항) */
    z-index: -1; 
}

/* pulse 애니메이션 키프레임 (예시) */
@keyframes pulse {
    0% {
        opacity: 0.5;
        transform: translate(-50%, -50%) scale(0.8);
    }
    50% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1.1);
    }
    100% {
        opacity: 0.5;
        transform: translate(-50%, -50%) scale(0.8);
    }
}
        .partners h3 {
            font-size: 36px;
            margin-bottom: 40px;
            font-weight: 800;
            color: #111;
            letter-spacing: -0.5px;
        }

        .partner-grid {
            display: grid;
            /* 데스크탑: 7개 컬럼 유지 */
            grid-template-columns: repeat(6, 1fr); 
            gap: 13px;
            max-width: 1440px;
            margin: 0 auto; /* 중앙 배치 */
        }

 
        .partner-logo img {
            /* 로고 이미지가 부모 컨테이너(partner-logo) 크기에 맞게 조절되도록 설정 */
            max-width: 80%; /* 이미지의 최대 너비를 80%로 제한 */
            max-height: 80px; /* 이미지의 최대 높이를 설정하여 너무 커지지 않게 함 */
            width: auto;
            height: auto;
            object-fit: contain; /* 이미지 비율 유지하며 컨테이너에 맞춤 */
            transition: all 0.3s ease;
        }
        

/*
        .partner-logo {
            height: 120px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: white;
            padding: 30px;
            border-radius: 16px;
            transition: all 0.3s ease;
            box-shadow: 0 5px 20px rgba(0,0,0,0.05);
            font-size: 14px;
            font-weight: 700;
            color: #999;
        }

        .partner-logo:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 30px rgba(255, 152, 18, 0.15);
        }
*/

        /* Responsive Design */
        @media (max-width: 1200px) {
            .hero-left h1 {
                font-size: 44px;
            }

            .section-title {
                font-size: 40px;
            }

            .features-grid {
                gap: 30px;
            }
            .partner-grid {
            /* 1200px 이하: 4개 컬럼 */
            grid-template-columns: repeat(4, 1fr); 
            max-width: 900px; /* 그리드 전체 너비를 줄여 중앙에 모이게 함 */
    }
        }

        @media (max-width: 1024px) {
            .hero {
                flex-direction: column;
            }
            .hero-left {
                padding: 100px 6%;
                background: url('../img/main_slide_bg.png') no-repeat;
                background-size: cover;
                background-position: center;
            }
            .hero-right {
                min-height:0
            }
            .features-grid,
            .content-grid {
                grid-template-columns: 1fr;
                gap:20px
            }

   /* 기존 코드: 1024px 이하에서 3개 컬럼으로 변경. 이 설정을 유지합니다. */
    .partner-grid {
        grid-template-columns: repeat(3, 1fr);
        max-width: 600px; /* 그리드 전체 너비를 더 줄여 중앙에 모이게 함 */
    }
        }

        @media (max-width: 768px) {
            header {
                padding: 0 8%;
                height: 70px;
            }

            nav {
                gap: 25px;
            }

            nav a {
                font-size: 14px;
            }

            .hero-left h1 {
                font-size: 36px;
                text-align: center;
            }

            .hero-left p {
                font-size: 16px;
                text-align: center;
            }
            .hero-buttons {
                justify-content: center;
            }
            .section {
                padding: 60px 6%;
            }

            .section-title {
                font-size: 28px;
            }

            .section-subtitle {
                font-size: 16px;
            }

            .feature-card {
                padding: 40px 30px;
            }
            .feature-card h3 {
                font-size: 22px;
            }

            .robot-illustration {
                width: 150px;
                height: 150px;
                right: 24px;
                 top: 32px;
            }

            .tabs {
                flex-wrap: wrap;
                gap: 60px;
                margin: 0;
            }

            .tab {
                font-size: 16px;
            }

            .content-image {
                height: 350px;
            }

            .cta-section h2 {
                font-size: 24px;
            }

            .footer-content {
                flex-direction: column;
                gap: 40px;
            }

            .footer-links {
                gap: 15px;
            }
             .partner-grid {
                /* 768px 이하: 2개 컬럼 */
                grid-template-columns: repeat(2, 1fr);
                max-width: 400px; /* 그리드 전체 너비를 더 줄여 중앙에 모이게 함 */
            }
            
           

            .partner-logo img {
                /* 로고 이미지 크기를 더 작게 조정 */
                max-height: 70px;
            }
        }

        @media (max-width: 480px) {
            .hero-buttons {
                flex-direction: column;
                gap: 15px;
            }

            .btn,
            .btn-primary,
            .btn-outline {
                width: 100%;
            }

            .cta-buttons {
                flex-direction: column;
                gap: 15px;
            }

            .robot-illustration {
                width: 100px;
                height: 100px;
                right: 20px;
                bottom: 20px;
            }

            
            .partners {
                padding: 50px 5%;
            }
            .partners h3{
                margin-bottom: 20px;
            }
            .partner-grid {
                /* 480px 이하: 2개 컬럼을 유지하되, 컨테이너를 화면에 꽉 채우도록 설정 */
                max-width: 100%;
                gap: 10px;
            }
            .partner-logo {
                height: 80px;
            }
            .partner-logo img {
                /* 로고 이미지가 컨테이너의 좁은 공간에 맞게 최종적으로 작아지도록 설정 */
                max-height: 50px; 
            }
        }