:root {
            --primary-color-cafe: #2563eb; /* A consistent, modern blue */
            --primary-color-hamba: #2ecc71; /* Green for 'call' action only */
        }
        /* --- Base & Font Settings --- */
        html { 
            scroll-behavior: smooth; 
            height: 100%; 
            overflow-x: hidden; 
        }
        body { 
            font-family: 'Pretendard', sans-serif; 
            background-color: #fff; 
            min-height: 100%; 
            overflow-x: hidden;
        }
        section[id] { scroll-margin-top: 4rem; }

        /* --- GNB (hamba style) --- */
        #page-nav { position: fixed; top: 50%; right: 2rem; transform: translateY(-50%); z-index: 40; }
        #page-nav ul { list-style: none; padding: 0; margin: 0; }
        #page-nav .nav-link { color: #6b7280; font-weight: 600; transition: all 0.3s ease; display: flex; align-items: center; justify-content: flex-end; gap: 0.75rem; text-decoration: none; font-size: 1.1rem; padding: 0.5rem 0; text-shadow: 0 1px 3px rgba(255,255,255,0.5); }
        #page-nav .nav-link:hover { color: #2563eb; }
        #page-nav .nav-link .dot { width: 0.5rem; height: 0.5rem; border-radius: 9999px; background-color: #9ca3af; transition: all 0.3s ease; box-shadow: 0 0 5px rgba(0,0,0,0.2); }
        #page-nav .nav-link.active { color: #2563eb; font-weight: 800; }
        #page-nav .nav-link.active .dot { background-color: #2563eb; transform: scale(1.5); }
        @media (max-width: 1023px) {
            #page-nav { right: 1rem; }
            #page-nav .nav-link span { display: none; }
            #page-nav .nav-link { padding: 0.6rem 0; }
            #page-nav .nav-link .dot { width: 0.6rem; height: 0.6rem; }
            #page-nav .nav-link.active .dot { transform: scale(1.8); }
        }

        /* --- Sticky Hero Layout (수정) --- */
        #hero-sticky-background {
            position: fixed;
            top: 0;
            height: 100vh;
            width: 100%;
            z-index: 1;
        }
        
        /* --- Hero Section Content (최종 확정 수정) --- */
        #hero-content {
            height: 170vh; 
            padding-top: 0;
            position: relative;
            z-index: 2;
            overflow-x: hidden; 
        }

        #hero-content .inner { 
            max-width: 1200px; 
            width: 100%;
            position: sticky; 
            height: 100vh; 
            top: 0; 
            padding-top: 0; 
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center; 
            margin-left: auto; 
            margin-right: auto;
            overflow: hidden; 
        }

        #hero-content .inner .content-box {
            position: static;
            transform: none;
            text-align: center;
            width: 90%;
            max-width: 1000px;
        }

        /* --- Scrolling Content Wrapper (수정) --- */
        #scrolling-content-wrapper {
            position: relative;
            z-index: 2; 
        }
        #main-content {
            background-color: #fff;
            position: relative;
            z-index: 3;
        }
        .hero-slides {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
        }
        .hero-slides .slide {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-size: cover;
            background-position: center;
            opacity: 0;
            transition: opacity 1s ease-in-out;
            will-change: opacity;
        }
        .hero-slides .slide::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.6);
        }
        .hero-slides .slide.active { opacity: 1; }
        #hero-content .visual-title { font-size: 3.5rem; font-weight: 800; color: #fff; text-shadow: 0 2px 4px rgba(0,0,0,0.5); }
        #hero-content .visual-title span { color: #facc15; } /* Tailwind yellow-400 */
        #hero-content .visual-subtitle { font-size: 1.5rem; font-weight: 500; margin-top: 2rem; line-height: 1.7; color: #fff; text-shadow: 0 2px 4px rgba(0,0,0,0.7); }
        #hero-content .visual-subtitle strong { font-size: 1.2em; font-weight: 800; }

        /* --- Content Section --- */
        .solution-section { padding: 8rem 2rem; max-width: 1280px; margin: auto; }
        .section-header { text-align: center; margin-bottom: 5rem; }
        .section-title { font-size: 3.5rem; font-weight: 700; color: #111827; line-height: 1.3; }
        .section-subtitle { font-size: 2.2rem; font-weight: 600; color: #2563eb; margin-top: 1rem; }
        
        .content-wrapper { display: flex; gap: 5rem; align-items: center; margin-bottom: 8rem; }
        .content-wrapper:last-child { margin-bottom: 0; }
        .content-wrapper.reverse { flex-direction: row-reverse; }
        .text-block, .media-block { flex: 1; }
        .text-block h3 { font-size: 2.5rem; font-weight: 700; color: #1e3a8a; margin-bottom: 2rem; }
        .text-block p { font-size: 1.25rem; line-height: 1.8; color: #374151; margin-bottom: 1.5rem; } /* Font size updated */
        .text-block .highlight { background-color: #fef9c3; color: #713f12; padding: 0.5rem 1rem; border-radius: 0.5rem; font-weight: 700; } /* Style updated */
        .text-block a { color: #2563eb; font-weight: 600; text-decoration: underline; }
        .media-block img { border-radius: 1.5rem; box-shadow: 0 25px 50px -12px rgba(0,0,0,0.25); width: 100%; }
        .chart-container { 
            position: relative; 
            min-height: 400px; 
            background-color: #ffffff;
            padding: 1.5rem;
            border-radius: 1rem;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
        }

        .kiosk-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; text-align: center; }
        .kiosk-list li { background: #f9fafb; border-radius: 1rem; padding: 2rem; transition: all 0.3s ease; }
        .kiosk-list li:hover { transform: translateY(-5px); box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1); }
        .kiosk-list img { margin: 0 auto 1.5rem; }
        .kiosk-list .sect-text { font-size: 1.125rem; font-weight: 600; color: #374151; } /* Font size updated */

        #solution-detail .video-responsive-container {
            position: relative;
            aspect-ratio: 1 / 1; /* 데스크탑 기본 1:1 */
            overflow: hidden;
            border-radius: 1.5rem; 
            box-shadow: 0 12px 24px -10px rgba(0,0,0,0.18);
        }

        #solution-detail .video-responsive-container iframe {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
        }

        .step-icon-wrapper {
            width: 120px;
            height: 120px;
            margin: 0 auto 1.5rem;
            border-radius: 50%;
            background-color: #e5e7eb; /* Darker gray background */
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .step-icon-wrapper img {
            width: 60px;
            height: 60px;
        }

        @media (max-width: 768px) {
            html { scroll-behavior: auto; }
            #hero-content .visual-title { font-size: 3rem; }
            #hero-content .visual-subtitle { font-size: 1.5rem; }
            .solution-section { padding: 5rem 1.5rem; }
            .section-title { font-size: 2.5rem; }
            .section-subtitle { font-size: 1.8rem; }
            .content-wrapper, .content-wrapper.reverse { flex-direction: column; gap: 3rem; }
            .text-block h3 { font-size: 2rem; }
            .text-block p { font-size: 1.125rem; } /* Font size updated */
            .kiosk-list { grid-template-columns: 1fr; }
            .media-block { flex: none; width: 100%; }
            #hero-content { height: 120vh; }
            .chart-container { min-height: 260px; }
            .media-block img { box-shadow: 0 12px 24px -10px rgba(0,0,0,0.18); }
            #contact .bg-white\/5 { backdrop-filter: none; }

            .hero-slides .slide-main-kiosk { background-position: center 20%; }
            .hero-slides .slide-cafe1 { background-position: center center; }
            .hero-slides .slide-cafe2 { background-position: right center; } /* 우측 정렬 */
            .hero-slides .slide-cafe3 { background-position: left center; }  /* 좌측 정렬 */
            .hero-slides .slide-advertise { background-position: 20% center; } /* 좌측에서 20% 이동 */
            
            
        }

        /* --- Footer & CTA --- */
        footer { background-color: #f3f4f6; padding: 3rem 1rem; text-align: center; }
        footer .inner { max-width: 72rem; margin: auto; color: #374151; }
        footer p { font-weight: bold; margin-top: 1rem; }
        footer a { text-decoration: underline; }

        /* --- Spec Link & Modal Styles --- */
        .spec-link {
            display: inline-block;
            margin-top: 0.5rem;
            color: #2563eb;
            font-weight: 600;
            text-decoration: underline;
            cursor: pointer;
        }
        .spec-modal {
            display: none; /* Hidden by default */
            position: fixed;
            z-index: 100;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            overflow: auto;
            background-color: rgba(0,0,0,0.7);
            align-items: center;
            justify-content: center;
        }
        .spec-modal.active {
            display: flex;
        }
        .modal-content {
            position: relative;
            background-color: #fefefe;
            margin: auto;
            padding: 20px;
            border: 1px solid #888;
            width: 80%;
            max-width: 800px;
            border-radius: 1rem;
        }
        .modal-content img {
            width: 100%;
        }
        .close-button {
            color: #aaa;
            position: absolute;
            top: 10px;
            right: 25px;
            font-size: 35px;
            font-weight: bold;
            cursor: pointer;
        }
        .close-button:hover,
        .close-button:focus {
            color: black;
        }

        /* --- Guide Modal Content Styles --- */
        #guide-modal .modal-content {
            max-width: 800px;
            width: 90%;
        }
        .guide-content {
            max-height: 90vh; /* Increased height for a more spacious feel */
            overflow-y: auto;
            padding: 1rem 2rem;
        }
        .guide-content h1 {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            text-align: center;
        }
        .guide-content h2 {
            font-size: 2rem;
            font-weight: 600;
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            color: #1e3a8a;
        }
        .guide-content p {
            font-size: 1.125rem; /* Font size updated */
            line-height: 1.7;
            margin-bottom: 1rem;
        }
        .guide-content ul {
            list-style-position: inside;
            padding-left: 0.5rem;
        }
        .guide-content li {
            font-size: 1.125rem; /* Font size updated */
            margin-bottom: 0.5rem;
        }
        .guide-content .tip {
			background-color: #eff6ff;
			border-left: 4px solid #2563eb;
			padding: 1.5rem;
			margin: 1.5rem 0;
			border-radius: 0 4px 4px 0;
		}
        .guide-content .conclusion {
			background: #f3f4f6;
			padding: 2rem;
			border-radius: 8px;
			margin-top: 3rem;
            text-align: center;
		}

        /* --- FAQ Accordion Styles --- */
        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid #e5e7eb;
        }
        .faq-question {
            width: 100%;
            padding: 1.5rem 2.5rem; /* Adjusted padding */
            display: flex;
            justify-content: space-between;
            align-items: center;
            text-align: left;
            font-size: 1.5rem;
            font-weight: 600;
            color: #111827;
            background: none;
            border: none;
            cursor: pointer;
        }
        .faq-question:hover {
            background-color: #f9fafb;
        }
        .faq-icon {
            width: 1.5rem;
            height: 1.5rem;
            transition: transform 0.3s ease;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            padding: 0 2.5rem; /* Adjusted padding */
            display: flex;
            align-items: flex-start;
            gap: 1rem;
        }
        .faq-answer p {
            padding: 0 0 1.5rem 0; /* Adjusted padding */
            font-size: 1.125rem; /* Font size updated */
            line-height: 1.7;
        }

        /* Added FAQ Q&A Styles */
        .faq-q-icon, .faq-a-icon {
            flex-shrink: 0;
            width: 2.5rem;
            height: 2.5rem;
            border-radius: 9999px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: white;
        }
        .faq-q-icon {
            background-color: #2563eb; /* primary */
        }
        .faq-a-icon {
            background-color: #10b981; /* accent */
        }
        .faq-question span {
            flex-grow: 1;
        }

        /* --- FAB & Floating Form Styles --- */
        .fab-container {
            position: fixed;
            bottom: 30px;
            right: 30px;
            display: flex;
            flex-direction: column;
            gap: 15px;
            z-index: 50;
            opacity: 0; /* Hidden by default */
            pointer-events: none;
            transform: scale(0.8);
            transition: opacity 0.3s ease-out, transform 0.3s ease-out;
        }
        .fab-container.is-visible {
            opacity: 1;
            pointer-events: auto;
            transform: scale(1);
        }
        .fab {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: var(--primary-color-cafe);
            color: white;
            display: flex;
            justify-content: center;
            align-items: center;
            text-decoration: none;
            box-shadow: 0 4px 12px rgba(0,0,0,0.3);
            transition: transform 0.2s ease, background-color 0.2s ease;
            border: none;
            padding: 0;
            cursor: pointer;
        }
        .fab:hover {
            transform: scale(1.1);
        }
        .fab.phone {
            background: var(--primary-color-hamba);
        }
        .fab svg {
            width: 28px;
            height: 28px;
        }
        .floating-contact-form, .floating-success-message {
            position: fixed;
            bottom: 20px; /* Start at the bottom */
            left: 50%;
            transform: translateX(-50%);
            background: #fff;
            padding: 10px;
            border-radius: 15px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.2);
            z-index: 49;
            opacity: 1; /* Visible by default */
            pointer-events: auto;
            transition: opacity 0.3s ease-out, transform 0.3s ease-out, bottom 0.3s ease-out;
        }
        .floating-contact-form.is-hidden, .floating-success-message {
             opacity: 0;
             pointer-events: none;
             transform: translateX(-50%) translateY(20px);
        }
        .floating-contact-form.is-visible {
            opacity: 1;
            pointer-events: auto;
            transform: translateX(-50%) translateY(0);
            bottom: 105px; /* Move up when FAB is clicked */
        }
        .floating-success-message.is-visible {
            opacity: 1;
            pointer-events: auto;
            transform: translateX(-50%) translateY(0);
        }
        .floating-contact-form {
            display: flex;
            align-items: center;
        }
        .floating-success-message {
            background: var(--primary-color-cafe); /* Changed from hamba green to cafe blue */
            color: white;
            padding: 15px 25px;
            font-weight: 700;
        }
        .phone-input-wrapper {
            display: flex;
            align-items: center;
            border: 1px solid #ccc;
            border-radius: 10px;
            padding: 0 10px;
        }
        .floating-prefix {
            font-weight: 700;
            color: #333;
        }
        .floating-contact-form input {
            border: none;
            outline: none;
            padding: 10px 5px;
            font-size: 1rem;
            width: 140px;
        }
        .floating-contact-form button {
            background: var(--primary-color-cafe);
            color: white;
            border: none;
            border-radius: 10px;
            padding: 12px 15px;
            margin-left: 10px;
            font-weight: 700;
            cursor: pointer;
            white-space: nowrap;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }
        #form-source {
            color: white;
        }
        #form-source:invalid {
            color: #6B7280; /* Tailwind gray-500 for placeholder */
        }

        /* Added FAQ Q&A Styles */
        .faq-question, .faq-answer {
            display: flex;
            align-items: flex-start;
            gap: 1rem;
        }
        .faq-q-icon, .faq-a-icon {
            flex-shrink: 0;
            width: 2.5rem;
            height: 2.5rem;
            border-radius: 9999px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: white;
        }
        .faq-q-icon {
            background-color: #2563eb; /* primary */
        }
        .faq-a-icon {
            background-color: #10b981; /* accent */
        }
        .faq-question span {
            flex-grow: 1;
        }