/* Reset CSS */
* {
    margin: 0; 
    padding: 0; 
    box-sizing: border-box;
}

/* CSS Variables */
:root {
    --primary: #2196F3;
    --primary-dark: #1976D2;
    --text-primary: #191F28;
    --text-secondary: #4E5968;
}

/* Base Typography */
body {
    font-family: 'Noto Sans KR', sans-serif;
    line-height: 1.6;
    color: #ffffff;
    overflow-x: hidden;
    word-break: keep-all;
    overflow-wrap: break-word;
}

/* Prevent horizontal scrolling */
html, body {
    max-width: 100%;
    overflow-x: hidden;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(8px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    font-family: 'Noto Sans KR', sans-serif !important;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease-in-out, visibility 0.3s ease-in-out;
}

.navbar.visible {
    opacity: 1;
    visibility: visible;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.logo img {
    height: 65px;
    padding-top: 0.5em;
    max-width: 100%;
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
    font-family: 'Noto Sans KR', sans-serif !important;
}

.nav-links a {
    color: #4E5968;
    text-decoration: none;
    font-weight: 500;
    font-size: 16px;
    transition: color 0.2s;
    font-family: 'Noto Sans KR', sans-serif !important;
    white-space: nowrap;
}

.nav-links a:hover {
    color: #2196F3;
}

/* Language Toggle */
.language-toggle {
    display: flex;
    align-items: center;
    background-color: rgba(33, 150, 243, 0.1);
    border-radius: 20px;
    padding: 4px;
    margin-left: 16px;
    font-family: 'Noto Sans KR', sans-serif !important;
}

.language-toggle label {
    padding: 6px 12px;
    border-radius: 16px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: #4E5968;
    font-family: 'Noto Sans KR', sans-serif !important;
}

.language-toggle .active {
    background-color: #2196F3;
    color: white;
}

.language-toggle input {
    display: none;
}

/* Hamburger Menu */
.hamburger-menu {
    display: none;
    flex-direction: column;
    cursor: pointer;
    z-index: 1100;
}

.hamburger-menu .bar {
    width: 25px;
    height: 3px;
    background-color: #191F28;
    margin: 3px 0;
    transition: 0.4s;
}

/* Mobile Navigation Overlay */
.mobile-nav-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
}

.mobile-nav-overlay.active {
    display: block;
    opacity: 1;
}

/* Mobile Navigation */
.mobile-nav {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    width: 300px;
    max-width: 70vw;
    height: 100%;
    background-color: white;
    z-index: 1000;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transform: translateX(100%);
    transition: transform 0.3s ease-in-out;
    box-shadow: -4px 0 12px rgba(0, 0, 0, 0.1);
    font-family: 'Noto Sans KR', sans-serif !important;
}

.mobile-nav.active {
    transform: translateX(0);
    display: flex;
}

.mobile-nav-close {
    position: absolute;
    top: 24px;
    right: 24px;
    background: rgba(0, 0, 0, 0.05);
    border: none;
    cursor: pointer;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1200;
    transition: all 0.2s ease;
}

.mobile-nav-close i {
    font-size: 24px;
    color: #191F28;
}

.mobile-nav-close:hover {
    background: #2196F3;
}

.mobile-nav-close:hover i {
    color: white;
}

.mobile-nav-logo {
    padding: 0 32px 32px 32px;
    margin-bottom: 20px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.mobile-nav-logo img {
    height: 60px;
    width: auto;
}

.mobile-nav a {
    font-size: 20px;
    margin: 20px 0;
    color: #191F28;
    text-decoration: none;
    width: 100%;
    text-align: center;
    font-family: 'Noto Sans KR', sans-serif !important;
}

.mobile-nav .language-toggle {
    margin-top: 40px;
}

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(135deg, rgba(17, 17, 17, 0.7) 0%, rgba(26, 26, 26, 0.8) 100%), url('../img/3.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    z-index: 1;
    opacity: 0;
    transition: opacity 1.2s ease;
    padding: 0 1rem;
}

.hero.visible { 
    opacity: 1; 
}

.hero-content { 
    max-width: 1000px; 
    width: 100%;
    padding: 0 1rem; 
}

.hero h1 { 
    font-size: clamp(2rem, 6vw, 4rem);
    font-weight: 700;
    line-height: 1.3;
    word-break: keep-all;
    overflow-wrap: break-word;
}

.hero-line1, .hero-line2 {
    display: inline;
}

/* Mobile specific hero text layout for 391px and below */
@media (max-width: 391px) {
    .hero h1 {
        display: flex;
        flex-direction: column;
        align-items: center;
        line-height: 1.2;
    }
    
    .hero-line1 {
        display: block;
        margin-bottom: 0.2em;
    }
    
    .hero-line2 {
        display: block;
        text-align: center;
    }
    
    .hero-line2 br {
        display: none;
    }
}

/* Hero Section Scroll Down Arrow */
.scroll-down {
    position: absolute;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 60px;
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    animation: bounce 2s ease-in-out infinite;
}

.scroll-down:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.8);
    transform: translateX(-50%) scale(1.1);
}

.scroll-down::before {
    content: '';
    width: 12px;
    height: 12px;
    border-right: 2px solid rgba(255, 255, 255, 0.8);
    border-bottom: 2px solid rgba(255, 255, 255, 0.8);
    transform: rotate(45deg);
    margin-top: -3px;
}

.scroll-down:hover::before {
    border-color: #ffffff;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { 
        transform: translateX(-50%) translateY(0); 
    }
    40% { 
        transform: translateX(-50%) translateY(15px); 
    }
    60% { 
        transform: translateX(-50%) translateY(8px); 
    }
}

/* Question Section */
.question-section {
    min-height: 100vh;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    z-index: 1;
    padding: 2rem 0;
    opacity: 1;
    transform: translateY(0);
    transition: none;
}

.question-section.visible {
    opacity: 1;
    transform: translateY(0);
}

.question-content {
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
}

.question-section h2 {
    font-size: clamp(2rem, 6vw, 4rem);
    font-weight: 700;
    color: #ffffff;
    line-height: 1.3;
    text-shadow: 0 4px 20px rgba(255, 255, 255, 0.1);
    position: relative;
    word-break: keep-all;
    overflow-wrap: break-word;
}

.question-section h2::before {
    content: '';
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #3182f6, #00b4ff);
    border-radius: 2px;
}

/* Vision Section */
.vision {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 1rem;
    background: #000000;
    color: #fff;
    position: relative;
    overflow: hidden;
    width: 100%;
}

.vision::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(circle at 30% 20%, rgba(37, 96, 173, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 70% 80%, rgba(37, 96, 173, 0.1) 0%, transparent 50%);
    z-index: 1;
}



.vision-container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.vision-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    color: #ffffff;
    text-align: center;
    margin-bottom: 3rem;
    letter-spacing: -0.02em;
    line-height: 1.1;
    position: relative;
    word-break: keep-all;
    overflow-wrap: break-word;
}

.vision-title::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, transparent, #2560AD, transparent);
    border-radius: 2px;
    box-shadow: 0 0 20px rgba(37, 96, 173, 0.5);
}

.vision-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    width: 100%;
    perspective: 1000px;
    max-width: 1000px;
    margin: 0 auto;
}

.vision-card {
    position: relative;
    background: transparent;
    border-radius: 28px;
    padding: 0;
    min-height: 350px;
    overflow: hidden;
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    cursor: pointer;
    animation: fadeInUp 1.2s ease forwards;
}

.vision-card:nth-child(1) {
    animation-delay: 0.2s;
}

.vision-card:nth-child(2) {
    animation-delay: 0.4s;
}

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

@keyframes backgroundFloat {
    0%, 100% { 
        transform: translate(0, 0) rotate(0deg); 
    }
    33% { 
        transform: translate(30px, -30px) rotate(1deg); 
    }
    66% { 
        transform: translate(-20px, 20px) rotate(-0.5deg); 
    }
}

/* Glassmorphism Background */
.card-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(145deg, 
            rgba(37, 96, 173, 0.25) 0%, 
            rgba(37, 96, 173, 0.15) 25%,
            rgba(37, 96, 173, 0.05) 75%,
            rgba(255, 255, 255, 0.02) 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 2px solid rgba(37, 96, 173, 0.3);
    border-radius: 28px;
    z-index: 1;
    transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: 
        0 20px 40px rgba(37, 96, 173, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.1),
        inset 0 -1px 0 rgba(255, 255, 255, 0.05);
}

.speed-innovation .card-background {
    background: 
        linear-gradient(145deg, 
            rgba(37, 96, 173, 0.3) 0%, 
            rgba(82, 130, 255, 0.2) 25%,
            rgba(37, 96, 173, 0.1) 75%,
            rgba(0, 191, 255, 0.05) 100%);
    border: 2px solid rgba(82, 130, 255, 0.4);
    box-shadow: 
        0 25px 50px rgba(37, 96, 173, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.15),
        0 0 40px rgba(37, 96, 173, 0.3);
}

.security-innovation .card-background {
    background: 
        linear-gradient(145deg, 
            rgba(37, 96, 173, 0.28) 0%, 
            rgba(124, 58, 237, 0.18) 25%,
            rgba(37, 96, 173, 0.08) 75%,
            rgba(168, 85, 247, 0.05) 100%);
    border: 2px solid rgba(124, 58, 237, 0.35);
    box-shadow: 
        0 25px 50px rgba(124, 58, 237, 0.18),
        inset 0 1px 0 rgba(255, 255, 255, 0.15),
        0 0 40px rgba(124, 58, 237, 0.25);
}

.vision-card:hover .card-background {
    transform: scale(1.02) rotateY(2deg);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border-width: 3px;
}

.speed-innovation:hover .card-background {
    border-color: rgba(82, 130, 255, 0.6);
    box-shadow: 
        0 35px 70px rgba(37, 96, 173, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.2),
        0 0 60px rgba(37, 96, 173, 0.4);
}

.security-innovation:hover .card-background {
    border-color: rgba(124, 58, 237, 0.5);
    box-shadow: 
        0 35px 70px rgba(124, 58, 237, 0.25),
        inset 0 1px 0 rgba(255, 255, 255, 0.2),
        0 0 60px rgba(124, 58, 237, 0.35);
}

/* Enhanced Content Layout */
.card-content {
    position: relative;
    z-index: 3;
    padding: 2rem;
    height: 100%;
    display: flex;
    flex-direction: column;
    color: white;
}

.card-header {
    flex-grow: 0;
}

.card-icon {
    position: absolute;
    top: 50%;
    right: 2rem;
    transform: translateY(-50%);
    opacity: 0.6;
    transition: all 0.4s ease;
    z-index: 10;
}

.card-icon svg {
    width: clamp(60px, 8vw, 120px);
    height: clamp(60px, 8vw, 120px);
    color: rgba(255, 255, 255, 0.3);
    filter: drop-shadow(0 0 15px rgba(255, 255, 255, 0.2));
    transition: all 0.4s ease;
}

.speed-innovation .card-icon svg {
    color: rgba(82, 130, 255, 0.6);
    filter: drop-shadow(0 0 15px rgba(82, 130, 255, 0.3));
}

.security-innovation .card-icon svg {
    color: rgba(168, 85, 247, 0.6);
    filter: drop-shadow(0 0 15px rgba(168, 85, 247, 0.3));
}

.vision-card:hover .card-icon {
    opacity: 1;
    transform: translateY(-50%) scale(1.03);
}

.vision-card:hover .card-icon svg {
    color: rgba(255, 255, 255, 0.8);
}

.speed-innovation:hover .card-icon svg {
    color: rgba(82, 130, 255, 1);
    filter: drop-shadow(0 0 25px rgba(82, 130, 255, 0.6));
}

.security-innovation:hover .card-icon svg {
    color: rgba(168, 85, 247, 1);
    filter: drop-shadow(0 0 25px rgba(168, 85, 247, 0.6));
}

.card-body {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 0.6rem;
    padding-right: clamp(60px, 10vw, 140px);
}

.card-label {
    font-size: clamp(0.7rem, 1.5vw, 0.8rem);
    font-weight: 800;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: #2560AD;
    text-shadow: 0 0 10px rgba(37, 96, 173, 0.8);
    margin-bottom: 0.4rem;
    padding: 0.5rem 1rem;
    background: rgba(37, 96, 173, 0.15);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(37, 96, 173, 0.3);
    border-radius: 20px;
    display: inline-block;
    align-self: flex-start;
    transition: all 0.4s ease;
}

.speed-innovation .card-label {
    color: #5282FF;
    text-shadow: 0 0 10px rgba(82, 130, 255, 0.8);
    background: rgba(82, 130, 255, 0.15);
    border-color: rgba(82, 130, 255, 0.3);
}

.security-innovation .card-label {
    color: #A855F7;
    text-shadow: 0 0 10px rgba(168, 85, 247, 0.8);
    background: rgba(124, 58, 237, 0.15);
    border-color: rgba(124, 58, 237, 0.3);
}

.card-content h3 {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    font-weight: 800;
    line-height: 1.2;
    margin: 0 0 0.6rem 0;
    color: #ffffff;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    transition: all 0.4s ease;
    word-break: keep-all;
    overflow-wrap: break-word;
}

.card-content p {
    font-size: clamp(1rem, 2.5vw, 1.2rem);
    font-weight: 500;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.95);
    text-shadow: 0 1px 5px rgba(0, 0, 0, 0.3);
    transition: all 0.4s ease;
    margin: 0;
    word-break: keep-all;
    overflow-wrap: break-word;
}

/* Magnetic Hover Effects */
.vision-card:hover {
    transform: translateY(-15px) scale(1.02);
}

.vision-card:hover .card-label {
    transform: scale(1.05);
    box-shadow: 0 5px 20px rgba(37, 96, 173, 0.4);
}

.speed-innovation:hover .card-label {
    box-shadow: 0 5px 20px rgba(82, 130, 255, 0.4);
}

.security-innovation:hover .card-label {
    box-shadow: 0 5px 20px rgba(168, 85, 247, 0.4);
}

.vision-card:hover .card-content h3 {
    transform: translateY(-2px);
    text-shadow: 0 4px 20px rgba(255, 255, 255, 0.3);
}

.vision-card:hover .card-content p {
    transform: translateY(-1px);
    color: rgba(255, 255, 255, 1);
}

/* Speed Innovation Section */
.speed-section {
    background: linear-gradient(135deg, #111111 0%, #1a1a2e 100%);
    color: #fff;
    position: relative;
    overflow: hidden;
    width: 100%;
    margin-top: 0;
    padding: 4rem 2rem;
}

.speed-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(180deg, 
            rgba(82, 130, 255, 0.02) 0%, 
            rgba(82, 130, 255, 0.04) 30%, 
            rgba(82, 130, 255, 0.04) 70%, 
            rgba(82, 130, 255, 0.02) 100%),
        linear-gradient(90deg, 
            transparent 0%, 
            rgba(0, 191, 255, 0.015) 50%, 
            transparent 100%);
    z-index: 1;
}

.speed-hero {
    position: relative;
    z-index: 2;
}

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

.speed-details {
    position: relative;
    z-index: 2;
}

/* Speed Hero Area - 제목 중앙 정렬 */
.speed-hero {
    min-height: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    background: transparent;
    opacity: 1;
    transform: translateY(0);
    transition: opacity 1.2s ease, transform 1.2s ease;
    padding: 2rem 0;
}

.speed-hero-content {
    position: relative;
    z-index: 2;
    max-width: 1000px;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.speed-text-content {
    text-align: center;
    margin-bottom: 3rem;
}

.speed-visual-content {
    display: none; /* 하단으로 이동 */
}

.section-category {
    font-size: clamp(1.8rem, 4vw, 2.2rem);
    font-weight: 800;
    color: rgba(82, 130, 255, 1);
    margin-top: 3rem;
    margin-bottom: 1rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    text-shadow: 0 0 15px rgba(82, 130, 255, 0.6);
}

.security-section .section-category {
    color: rgba(168, 85, 247, 1);
    text-shadow: 0 0 15px rgba(168, 85, 247, 0.6);
}

.section-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 0;
    background: linear-gradient(135deg, #fff 0%, #f0f0f0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    word-break: keep-all;
    overflow-wrap: break-word;
}

.speed-description-inline {
    margin-top: 1.5rem;
    margin-bottom: 5rem;
}

.speed-description-inline .speed-sub-text {
    font-size: clamp(1.1rem, 3vw, 1.3rem);
    line-height: 1.6;
    color: #ccc;
    margin: 0;
    text-align: center;
    font-weight: 400;
    word-break: keep-all;
    overflow-wrap: break-word;
}

.speed-visual-container {
    margin: 0;
    display: flex;
    justify-content: center;
    width: 100%;
    position: relative;
    z-index: 10;
}

.speed-visual-image {
    max-width: 700px;
    width: 100%;
    min-height: 450px;
    background: linear-gradient(135deg, rgba(49, 130, 246, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
    transform: translateY(0);
    transition: all 1s ease;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* Enhanced Speed Animation Styles - Intelligent Path Optimization */
.speed-animation-container {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(13, 17, 23, 0.8) 0%, rgba(21, 32, 43, 0.9) 100%);
}

/* Source Node */
.speed-source-node {
    position: absolute;
    top: 50%;
    left: 5%;
    transform: translateY(-50%);
    width: 75px;
    height: 75px;
    background: linear-gradient(145deg, #1e40af, #3b82f6);
    border-radius: 16px;
    border: 3px solid #60a5fa;
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: speedSourcePulse 3s ease-in-out infinite;
}

.speed-source-node::before {
    content: '📁';
    font-size: 28px;
    filter: drop-shadow(0 0 4px rgba(255, 255, 255, 0.6));
}

/* Destination Node */
.speed-destination-node {
    position: absolute;
    top: 50%;
    right: 5%;
    transform: translateY(-50%);
    width: 75px;
    height: 75px;
    background: linear-gradient(145deg, #059669, #10b981);
    border-radius: 16px;
    border: 3px solid #34d399;
    box-shadow: 0 0 15px rgba(16, 185, 129, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: speedDestinationPulse 3s ease-in-out infinite 0.5s;
}

.speed-destination-node::before {
    content: '💾';
    font-size: 28px;
    filter: drop-shadow(0 0 4px rgba(255, 255, 255, 0.6));
}

/* Intermediate Nodes (Routers/Servers) */
.speed-intermediate-node {
    position: absolute;
    width: 50px;
    height: 50px;
    background: linear-gradient(145deg, #374151, #4b5563);
    border-radius: 50%;
    border: 2px solid #6b7280;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: translate(-50%, -50%);
}

.speed-intermediate-node::before {
    content: '📡';
    font-size: 18px;
    filter: drop-shadow(0 0 2px rgba(255, 255, 255, 0.4));
}

.speed-node1 {
    top: 25%;
    left: 30%;
}

.speed-node2 {
    top: 50%;
    left: 50%;
}

.speed-node3 {
    top: 75%;
    left: 30%;
}

.speed-node4 {
    top: 30%;
    left: 70%;
}

.speed-node5 {
    top: 70%;
    left: 70%;
}

/* Multiple Transfer Paths */
.speed-transfer-path {
    position: absolute;
    height: 3px;
    background: linear-gradient(90deg, 
        rgba(107, 114, 128, 0.3) 0%, 
        rgba(107, 114, 128, 0.5) 50%, 
        rgba(107, 114, 128, 0.3) 100%);
    border-radius: 2px;
    opacity: 0.4;
    transition: all 0.5s ease;
}

.speed-transfer-path.active {
    background: linear-gradient(90deg, 
        rgba(59, 130, 246, 0.6) 0%, 
        rgba(16, 185, 129, 0.8) 50%, 
        rgba(16, 185, 129, 0.6) 100%);
    opacity: 1;
    box-shadow: 0 0 8px rgba(59, 130, 246, 0.3);
    height: 4px;
}

/* Path 1: Source -> Node1 -> Node4 -> Destination */
.speed-path1-segment1 {
    top: 37.5%;
    left: 12%;
    width: 16%;
    transform: rotate(-25deg);
    transform-origin: left center;
}

.speed-path1-segment2 {
    top: 27.5%;
    left: 32%;
    width: 35%;
    transform: rotate(2deg);
    transform-origin: left center;
}

.speed-path1-segment3 {
    top: 30%;
    left: 72%;
    width: 14%;
    transform: rotate(22deg);
    transform-origin: left center;
}

/* Path 2: Source -> Node2 -> Destination */
.speed-path2-segment1 {
    top: 50%;
    left: 12%;
    width: 36%;
    transform: translateY(-50%);
}

.speed-path2-segment2 {
    top: 50%;
    left: 52%;
    width: 40%;
    transform: translateY(-50%);
}

/* Path 3: Source -> Node3 -> Node5 -> Destination */
.speed-path3-segment1 {
    top: 62.5%;
    left: 12%;
    width: 16%;
    transform: rotate(25deg);
    transform-origin: left center;
}

.speed-path3-segment2 {
    top: 72.5%;
    left: 32%;
    width: 35%;
    transform: rotate(-2deg);
    transform-origin: left center;
}

.speed-path3-segment3 {
    top: 70%;
    left: 72%;
    width: 14%;
    transform: rotate(-22deg);
    transform-origin: left center;
}

/* Data Packets */
.speed-data-packet {
    position: absolute;
    width: 14px;
    height: 14px;
    background: linear-gradient(145deg, #3b82f6, #1d4ed8);
    border-radius: 3px;
    border: 1px solid #60a5fa;
    box-shadow: 0 0 6px rgba(59, 130, 246, 0.5);
    opacity: 0;
    transition: all 0.3s ease;
    transform: translate(-50%, -50%); /* 패킷을 중앙 정렬 */
}

/* Path Selection Animation Classes */
.speed-packet-path1 {
    animation: speedPacketPath1 8s ease-in-out infinite;
}

.speed-packet-path2 {
    animation: speedPacketPath2 8s ease-in-out infinite 0.5s;
}

.speed-packet-path3 {
    animation: speedPacketPath3 8s ease-in-out infinite 1s;
}

/* Progress Indicator */
.speed-progress-indicator {
    position: absolute;
    bottom: 8%;
    left: 50%;
    transform: translateX(-50%);
    width: 220px;
    height: 8px;
    background: rgba(30, 41, 59, 0.6);
    border-radius: 4px;
    border: 1px solid rgba(100, 116, 139, 0.3);
    overflow: hidden;
    z-index: 10;
}

.speed-progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #3b82f6, #10b981);
    border-radius: 4px;
    animation: speedProgressFill 8s ease-in-out infinite;
    box-shadow: 0 0 8px rgba(59, 130, 246, 0.4);
}

/* Animation Keyframes */
@keyframes speedSourcePulse {
    0%, 100% {
        transform: translateY(-50%) scale(1);
        box-shadow: 0 0 15px rgba(59, 130, 246, 0.4);
    }
    50% {
        transform: translateY(-50%) scale(1.05);
        box-shadow: 0 0 20px rgba(59, 130, 246, 0.6);
    }
}

@keyframes speedDestinationPulse {
    0%, 100% {
        transform: translateY(-50%) scale(1);
        box-shadow: 0 0 15px rgba(16, 185, 129, 0.4);
    }
    50% {
        transform: translateY(-50%) scale(1.05);
        box-shadow: 0 0 20px rgba(16, 185, 129, 0.6);
    }
}

/* Packet Path 1: Complex route */
@keyframes speedPacketPath1 {
    0% {
        left: 12%;
        top: 50%;
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.8);
    }
    5% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
    25% {
        left: 30%;
        top: 25%;
        transform: translate(-50%, -50%) scale(1);
    }
    45% {
        left: 70%;
        top: 30%;
        transform: translate(-50%, -50%) scale(1);
    }
    70% {
        left: 88%;
        top: 50%;
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
    70%, 85% {
        left: 88%;
        top: 50%;
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
    90%, 100% {
        left: 88%;
        top: 50%;
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.8);
    }
}

/* Packet Path 2: Direct route (optimal) */
@keyframes speedPacketPath2 {
    0% {
        left: 12%;
        top: 50%;
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.8);
    }
    8% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
    40% {
        left: 50%;
        top: 50%;
        transform: translate(-50%, -50%) scale(1);
    }
    65% {
        left: 88%;
        top: 50%;
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
    65%, 85% {
        left: 88%;
        top: 50%;
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
    90%, 100% {
        left: 88%;
        top: 50%;
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.8);
    }
}

/* Packet Path 3: Alternative route */
@keyframes speedPacketPath3 {
    0% {
        left: 12%;
        top: 50%;
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.8);
    }
    12% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
    30% {
        left: 30%;
        top: 75%;
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        left: 70%;
        top: 70%;
        transform: translate(-50%, -50%) scale(1);
    }
    75% {
        left: 88%;
        top: 50%;
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
    75%, 85% {
        left: 88%;
        top: 50%;
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
    90%, 100% {
        left: 88%;
        top: 50%;
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.8);
    }
}

@keyframes speedProgressFill {
    0% { width: 0%; }
    85% { width: 100%; }
    100% { width: 100%; }
}

/* Responsive adjustments for intelligent path optimization */
@media (max-width: 768px) {
    .speed-visual-image {
        min-height: 350px;
    }
    
    .speed-source-node,
    .speed-destination-node {
        width: 60px;
        height: 60px;
    }
    
    .speed-source-node::before,
    .speed-destination-node::before {
        font-size: 24px;
    }
    
    .speed-intermediate-node {
        width: 40px;
        height: 40px;
    }
    
    .speed-intermediate-node::before {
        font-size: 16px;
    }
    
    .speed-transfer-path {
        height: 2px;
    }
    
    .speed-transfer-path.active {
        height: 3px;
    }
    
    .speed-data-packet {
        width: 12px;
        height: 12px;
        transform: translate(-50%, -50%); /* 모바일에서도 중앙 정렬 유지 */
    }
    
    .speed-progress-indicator {
        width: 200px;
        height: 6px;
        bottom: 8%;
    }
}

@media (max-width: 480px) {
    .speed-visual-image {
        min-height: 300px;
    }
    
    .speed-source-node,
    .speed-destination-node {
        width: 50px;
        height: 50px;
    }
    
    .speed-source-node::before,
    .speed-destination-node::before {
        font-size: 20px;
    }
    
    .speed-intermediate-node {
        width: 35px;
        height: 35px;
    }
    
    .speed-intermediate-node::before {
        font-size: 14px;
    }
    
    .speed-progress-indicator {
        width: 170px;
        height: 5px;
        bottom: 6%;
    }
}

.speed-visual-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 20px;
}

.visual-placeholder-text {
    color: rgba(255, 255, 255, 0.6);
    font-size: 1.3rem;
    font-weight: 600;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    pointer-events: none;
}

.speed-visual-image:has(img) .visual-placeholder-text,
.security-visual-image:has(img) .visual-placeholder-text {
    display: none;
}

/* Speed Details Area - 좌우 분할 (기능 설명 + 이미지) */
.speed-details {
    padding: 2rem 0;
    background: transparent;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.speed-features {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

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

.speed-detail-item {
    padding: 1.5rem;
    border-left: 3px solid rgba(82, 130, 255, 0.3);
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
    background: transparent;
    border-radius: 0 12px 12px 0;
}

.speed-detail-item:hover {
    border-left-color: rgba(82, 130, 255, 0.7);
    background: transparent;
    transform: translateY(-2px) translateX(10px);
}

.speed-detail-item:nth-child(1) { transition-delay: 0.2s; }
.speed-detail-item:nth-child(2) { transition-delay: 0.4s; }
.speed-detail-item:nth-child(3) { transition-delay: 0.6s; }

.speed-detail-item h4 {
    font-size: clamp(1.4rem, 4vw, 1.8rem);
    font-weight: 600;
    color: #fff;
    margin-bottom: 0.4rem;
    word-break: keep-all;
    overflow-wrap: break-word;
}

.detail-divider {
    border: none;
    height: 1px;
    background: linear-gradient(90deg, #333, #666, #333);
    margin: 0.4rem 0;
}

.speed-detail-item p {
    font-size: clamp(1rem, 3vw, 1.2rem);
    line-height: 1.6;
    color: #ccc;
    margin: 0;
    word-break: keep-all;
    overflow-wrap: break-word;
}

.speed-detail-item strong {
    color: #3182f6;
    font-weight: 700;
}

.highlight-blue {
    color: rgba(82, 130, 255, 1);
    font-weight: 600;
}

/* Security Innovation Section */
.security-section {
    background: linear-gradient(135deg, #0f0f0f 0%, #1a0f1a 100%);
    color: #fff;
    position: relative;
    overflow: hidden;
    width: 100%;
    margin-top: 0;
    padding: 4rem 2rem;
}

.security-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at center, rgba(168, 85, 247, 0.05) 0%, transparent 70%),
        radial-gradient(ellipse at 50% 100%, rgba(124, 58, 237, 0.03) 0%, transparent 60%);
    z-index: 1;
}

.security-hero {
    position: relative;
    z-index: 2;
}

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

.security-details {
    position: relative;
    z-index: 2;
}

/* Security Hero Area - 중앙 정렬 레이아웃 */
.security-hero {
    min-height: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    background: transparent;
    opacity: 1;
    transform: translateY(0);
    transition: opacity 1.2s ease, transform 1.2s ease;
    padding: 2rem 0;
}

.security-hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.security-description-inline {
    margin-top: 1.5rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 5rem;
}

.security-description-inline .security-sub-text {
    font-size: clamp(1.1rem, 3vw, 1.3rem);
    line-height: 1.6;
    color: #e0e0e0;
    margin: 0;
    text-align: center;
    font-weight: 400;
    word-break: keep-all;
    overflow-wrap: break-word;
}

.security-visual-container {
    margin-top: 1.5rem;
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: center;
    width: 100%;
    position: relative;
    z-index: 10;
}

.security-visual-image {
    max-width: 600px;
    width: 100%;
    min-height: 300px;
    background: linear-gradient(135deg, rgba(49, 130, 246, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
    transform: translateY(0);
    transition: all 1s ease;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.security-visual-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 20px;
}

/* Security Animation Styles */
.security-animation-container {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
    border-radius: 20px;
}

.security-computer {
    position: absolute;
    width: 75px;
    height: 55px;
    background: linear-gradient(145deg, #f8fafc, #e2e8f0);
    border-radius: 12px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    border: 2px solid #cbd5e1;
}

.security-computer::before {
    content: '';
    position: absolute;
    top: 4px;
    left: 4px;
    right: 4px;
    bottom: 12px;
    background: linear-gradient(145deg, #0f172a, #1e293b);
    border-radius: 8px;
    border: 1px solid #334155;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.3);
}

.security-computer::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 35px;
    height: 12px;
    background: linear-gradient(145deg, #e2e8f0, #cbd5e1);
    border-radius: 0 0 8px 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.security-computer1 {
    top: 50%;
    left: 50px;
    transform: translateY(-50%);
}

.security-computer2 {
    top: 50%;
    right: 50px;
    transform: translateY(-50%);
}

.security-connection-line {
    position: absolute;
    top: 50%;
    left: 125px;
    transform: translateY(-50%);
    width: calc(100% - 250px);
    max-width: 400px;
    height: 4px;
    background: linear-gradient(90deg, #27ae60, #2ecc71, #27ae60);
    border-radius: 2px;
    box-shadow: 0 0 15px rgba(46, 204, 113, 0.4);
}

.security-shield {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 45px;
    height: 55px;
    background: linear-gradient(135deg, #f39c12, #e67e22);
    clip-path: polygon(50% 0%, 0% 25%, 0% 75%, 50% 100%, 100% 75%, 100% 25%);
    box-shadow: 0 0 25px rgba(243, 156, 18, 0.6);
    animation: securityShieldPulse 3s ease-in-out infinite;
}

.security-shield::before {
    content: '🛡️';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 18px;
    filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.8));
}

.security-intruder {
    position: absolute;
    width: 30px;
    height: 30px;
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    border-radius: 50%;
    top: 30%;
    left: -40px;
    transform: translateY(-50%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    animation: securityIntruderAttack 4s ease-in-out infinite;
    box-shadow: 0 0 15px rgba(231, 76, 60, 0.7);
}

.security-intruder::before {
    content: '👾';
    animation: securityIntruderSpin 1s linear infinite;
}

.security-bounce-effect {
    position: absolute;
    width: 25px;
    height: 25px;
    border-radius: 50%;
    background: radial-gradient(circle, #ff6b6b, transparent);
    opacity: 0;
    transform: scale(0);
}

.security-particles {
    position: absolute;
    width: 3px;
    height: 3px;
    background: #00ff88;
    border-radius: 50%;
    opacity: 0;
}

@keyframes securityShieldPulse {
    0%, 100% { 
        transform: translate(-50%, -50%) scale(1);
        box-shadow: 0 0 25px rgba(243, 156, 18, 0.6);
    }
    50% { 
        transform: translate(-50%, -50%) scale(1.1);
        box-shadow: 0 0 35px rgba(243, 156, 18, 0.9);
    }
}

@keyframes securityIntruderAttack {
    0% {
        left: -40px;
        top: 30%;
        transform: translateY(-50%) scale(1);
    }
    40% {
        left: calc(50% - 50px);
        top: 40%;
        transform: translateY(-50%) scale(1.1);
    }
    50% {
        left: calc(50% - 30px);
        top: 45%;
        transform: translateY(-50%) scale(1.2) rotate(180deg);
    }
    60% {
        left: calc(50% - 80px);
        top: 20%;
        transform: translateY(-50%) scale(0.8) rotate(270deg);
    }
    100% {
        left: calc(30%);
        top: 10%;
        transform: translateY(-50%) scale(0.6) rotate(360deg);
        opacity: 0.3;
    }
}

@keyframes securityIntruderSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes securityBounceEffect {
    0% {
        transform: scale(0);
        opacity: 1;
    }
    100% {
        transform: scale(2);
        opacity: 0;
    }
}

@keyframes securityParticleFloat {
    0% {
        transform: translate(0, 0) scale(1);
        opacity: 1;
    }
    100% {
        transform: translate(var(--dx), var(--dy)) scale(0);
        opacity: 0;
    }
}

/* Responsive adjustments for security animation */
@media (max-width: 768px) {
    .security-computer {
        width: 60px;
        height: 45px;
    }
    
    .security-computer::before {
        top: 3px;
        left: 3px;
        right: 3px;
        bottom: 9px;
    }
    
    .security-computer::after {
        width: 28px;
        height: 9px;
        bottom: -9px;
    }
    
    .security-computer1 {
        left: 25px;
    }
    
    .security-computer2 {
        right: 25px;
    }
    
    .security-connection-line {
        left: 85px;
        width: calc(100% - 170px);
    }
    
    .security-shield {
        width: 35px;
        height: 45px;
    }
    
    .security-shield::before {
        font-size: 14px;
    }
    
    .security-intruder {
        width: 24px;
        height: 24px;
    }
    
    .security-intruder::before {
        font-size: 12px;
    }
}



/* Security Details Area - 카드 형태로 재디자인 */
.security-details {
    padding: 2rem 0;
    background: transparent;
    max-width: 1000px;
    margin: 0 auto;
    width: 100%;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.security-detail-item {
    padding: 2rem;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(168, 85, 247, 0.15);
    border-radius: 20px;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.security-detail-item:hover {
    border-color: rgba(168, 85, 247, 0.3);
    background: rgba(168, 85, 247, 0.05);
    transform: translateY(-5px);
}

.security-detail-item:nth-child(1) { transition-delay: 0s; }
.security-detail-item:nth-child(2) { transition-delay: 0.05s; }

.security-detail-item h4 {
    font-size: clamp(1.4rem, 4vw, 1.8rem);
    font-weight: 600;
    color: #e0e0e0;
    margin-bottom: 0.4rem;
    word-break: keep-all;
    overflow-wrap: break-word;
}

.security-detail-item p {
    font-size: clamp(1rem, 3vw, 1.2rem);
    line-height: 1.6;
    color: #d0d0d0;
    margin: 0;
    word-break: keep-all;
    overflow-wrap: break-word;
}

.security-detail-item strong {
    color: rgba(168, 85, 247, 1);
    font-weight: 700;
}

/* Final Ending Section */
.final-ending {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem 1rem;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%) !important;
    background-color: #0a0a0a !important;
    text-align: center;
    position: relative;
    overflow: hidden;
    color: #ffffff;
}

section.final-ending {
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%) !important;
    background-color: #0a0a0a !important;
}

.final-ending::before {
    display: none;
}

.final-ending-container {
    position: relative;
    z-index: 2;
    max-width: 1000px;
    width: 100%;
    margin: 0 auto;
}

.final-ending-title {
    font-size: clamp(1.8rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.2;
    color: #ffffff;
    margin: 0;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1.5s ease forwards;
    animation-delay: 0.5s;
    word-break: keep-all;
    overflow-wrap: normal;
    hyphens: none;
    max-width: 1200px;
    letter-spacing: -0.02em;
}

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

/* Ending Section */
.ending {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem 1rem;
    background: radial-gradient(ellipse at center, #0d1117 0%, #000000 70%);
    text-align: center;
    position: relative;
    overflow: hidden;
    color: #E0E0E0;
}

.ending::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(circle at 20% 30%, rgba(49, 130, 246, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(0, 180, 255, 0.08) 0%, transparent 40%);
}

.ending-title {
    font-size: clamp(2.5rem, 6vw, 3.2rem);
    font-weight: 800;
    color: #E0E0E0;
    margin-bottom: 3rem;
    line-height: 1.2;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1.2s ease forwards;
    animation-delay: 0.3s;
    position: relative;
    z-index: 2;
    word-break: keep-all;
    overflow-wrap: break-word;
}

.ending-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 900px;
    width: 100%;
    margin-bottom: 3rem;
    position: relative;
    z-index: 2;
}

.ending-card {
    background: linear-gradient(145deg, rgba(30, 41, 59, 0.4), rgba(15, 23, 42, 0.6));
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(100, 116, 139, 0.2);
    border-radius: 20px;
    padding: 2rem 1.5rem;
    text-align: left;
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(40px) scale(0.95);
    transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    color: #E0E0E0;
}

.ending-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(49, 130, 246, 0.5), transparent);
}

.ending-card.show {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.ending-card:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: rgba(49, 130, 246, 0.4);
    box-shadow: 0 20px 40px rgba(49, 130, 246, 0.1);
}

.ending-card h3 {
    font-size: clamp(1.2rem, 3vw, 1.4rem);
    font-weight: 600;
    color: #E0E0E0;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    word-break: keep-all;
    overflow-wrap: break-word;
}

.ending-card h3::before {
    content: '';
    width: 6px;
    height: 6px;
    background: #3182f6;
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(49, 130, 246, 0.5);
    flex-shrink: 0;
}

.ending-card p {
    font-size: clamp(1rem, 2.5vw, 1.1rem);
    color: #E0E0E0;
    line-height: 1.7;
    word-break: keep-all;
    overflow-wrap: break-word;
}

.ending-final-message {
    max-width: 600px;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(100, 116, 139, 0.3);
    border-radius: 25px;
    padding: 2.5rem 2rem;
    margin-top: 2rem;
    position: relative;
    z-index: 2;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease forwards;
    animation-delay: 1.5s;
    display: none;
    color: #E0E0E0;
}

.ending-final-message::before {
    content: '';
    position: absolute;
    top: -1px;
    left: -1px;
    right: -1px;
    bottom: -1px;
    background: linear-gradient(45deg, transparent, rgba(49, 130, 246, 0.3), transparent);
    border-radius: 25px;
    z-index: -1;
}

.ending-final-message p {
    font-size: clamp(1rem, 2.5vw, 1.2rem);
    color: #E0E0E0;
    line-height: 1.8;
    margin: 0;
    word-break: keep-all;
    overflow-wrap: break-word;
}

.ending-highlight {
    color: #3182f6;
    font-weight: 600;
    position: relative;
}

/* Footer */
.ayn-footer {
    background-color: #fff;
    padding: 40px 24px 30px;
    font-size: 16px;
    color: #4e5968;
    line-height: 1.5;
    border-top: 1px solid #eaecf4;
    font-family: 'Noto Sans KR', sans-serif !important;
}

.ayn-footer * {
    font-family: 'Noto Sans KR', sans-serif !important;
}

.footer-container {
    max-width: 1100px;
    margin: 0 auto;
}

.footer-company-name {
    font-weight: 700;
    font-size: clamp(24px, 5vw, 34px);
    color: #000000;
    margin-bottom: 15px;
    word-break: keep-all;
}

.registered-mark {
    font-size: 45%; 
    vertical-align: super; 
    margin-left: 3px; 
    position: relative; 
    top: -0.12em;
}

.footer-company-info {
    margin-bottom: 25px;
    font-size: 16px;
    color: #4e5968;
}

.footer-company-info p {
    margin-bottom: 5px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 25px;
}

.footer-section {
    min-width: 160px;
}

.footer-section h3 {
    font-size: clamp(18px, 4vw, 21px);
    font-weight: 600;
    margin-bottom: 15px;
    color: #1f2937;
    word-break: keep-all;
}

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

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section a {
    color: #6B7280;
    text-decoration: none;
    transition: all 0.2s ease;
    font-size: clamp(14px, 3vw, 16px);
    font-weight: 400;
    position: relative;
    word-break: keep-all;
    overflow-wrap: break-word;
}

.footer-section a:hover {
    color: #1f2937;
}

.footer-section a:after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: #1f2937;
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.footer-section a:hover:after {
    transform: scaleX(1);
}

.policy-link {
    font-weight: 700 !important;
}

.footer-bottom {
    padding-top: 20px;
    padding-bottom: 20px;
    border-top: 1px solid #eaecf4;
}

.social-links {
    display: flex;
    gap: 16px;
    margin-top: 20px;
    margin-bottom: 15px;
    justify-content: flex-start;
    flex-wrap: wrap;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 8px;
    background-color: #f8fafc;
    color: #64748b;
    border: 1px solid #e2e8f0;
    transition: all 0.2s ease;
    text-decoration: none;
    flex-shrink: 0;
}

.social-link.youtube {
    color: #FF0000;
}

.social-link.youtube:hover {
    background-color: #FF0000;
    border-color: #FF0000;
    color: white;
    transform: translateY(-1px);
}

.social-link.instagram {
    color: #E4405F;
}

.social-link.instagram:hover {
    background: linear-gradient(45deg, #ffdb8b 0%, #ee653d 50%, #e73c7e 100%);
    border: none;
    color: white;
    transform: translateY(-1px);
}

.social-link svg {
    width: 22px;
    height: 22px;
    transition: all 0.2s ease;
}

/* Tablet Design */
@media (max-width: 1024px) and (min-width: 481px) {
    .vision {
        padding: 5rem 2rem;
    }

    .vision-container {
        padding: 0 0.5rem;
    }

    .vision-cards {
        grid-template-columns: 1fr;
        gap: 2rem;
        max-width: 600px;
        margin: 0 auto;
    }

    .vision-card {
        min-height: 320px;
    }

    .card-content {
        padding: 2rem;
    }

    .card-body {
        padding-right: clamp(80px, 15vw, 120px);
    }

    .card-icon {
        right: 2rem;
    }

    .card-icon svg {
        width: clamp(80px, 12vw, 100px);
        height: clamp(80px, 12vw, 100px);
    }

    .card-label {
        font-size: clamp(0.7rem, 1.5vw, 0.8rem);
    }

    .card-content h3 {
        font-size: clamp(1.4rem, 3vw, 1.6rem);
    }

    .card-content p {
        font-size: clamp(1.1rem, 2.5vw, 1.2rem);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .speed-hero-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
        padding: 0 1rem;
    }
    
    .speed-text-content {
        text-align: center;
    }
    
    .speed-description-inline .speed-sub-text {
        text-align: center;
    }
    
    .speed-details {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 0 1rem;
    }
    
    .speed-features {
        padding: 0;
    }
    
    .speed-visual-area {
        padding: 0;
    }
    
    .speed-visual-container {
        padding: 0;
        margin: 0;
    }
    
    .speed-detail-item {
        max-width: 100%;
        border-left: none;
        padding: 1.5rem;
        margin: 0;
    }
    
    .speed-detail-item::before {
        left: -1rem;
    }
    
    .speed-detail-item:hover {
        transform: translateY(-2px);
    }
    
    .speed-detail-item:hover::before {
        background: rgba(82, 130, 255, 0.7);
    }
    
    .security-details {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 0 1rem;
    }

    .security-detail-item {
        margin: 0;
    }
}

@media (max-width: 480px) {
    .nav-links {
        display: none;
    }

    .hamburger-menu {
        display: flex;
    }

    .mobile-nav.active {
        display: flex;
    }

    /* Hamburger menu animation */
    .hamburger-menu.active .bar:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }

    .hamburger-menu.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger-menu.active .bar:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }

    /* Hero Section mobile optimization */
    .hero {
        background-attachment: scroll;
        padding: 0 0.5rem;
    }

    /* Final Ending Section mobile optimization */
    .final-ending {
        min-height: 50vh;
        padding: 2rem 1rem;
    }

    .final-ending-title {
        font-size: clamp(1.8rem, 5vw, 3.2rem);
        line-height: 1.15;
        margin-bottom: 1rem;
        word-break: keep-all;
        overflow-wrap: normal;
        hyphens: none;
    }

    /* Section category mobile optimization */
    .section-category {
        font-size: clamp(1.5rem, 3.5vw, 2rem);
        font-weight: 800;
        margin-bottom: 0.8rem;
    }

    /* Vision section mobile optimization */
    .vision {
        padding: 3rem 1rem;
        min-height: auto;
    }

    .vision-container {
        padding: 0 0.5rem;
    }

    /* Vision cards mobile layout */
    .vision-cards {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        max-width: 100%;
        margin: 0;
        padding: 0 0.5rem;
    }

    .vision-card {
        min-height: 240px;
        max-width: 100%;
        margin: 0;
        border-radius: 20px;
        width: 100%; /* 전체 너비 사용 */
    }

    .card-background {
        border-radius: 20px;
    }

    .card-content {
        padding: 1.5rem 1.2rem;
    }

    .card-body {
        padding-right: 0;
        gap: 0.5rem;
        text-align: left; /* center에서 left로 변경 */
        padding-left: 0; /* 레이블과 텍스트 시작점 맞추기 */
    }

    /* Move icon to right end of label line on mobile */
    .card-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        margin-bottom: 1rem;
        position: relative;
        width: 100%;
    }

    .card-label {
        display: inline-block;
        padding: 0.5rem 1rem;
        font-size: 0.7rem;
        margin: 0;
        position: relative;
        align-self: flex-start; /* 왼쪽 정렬 */
    }

    .card-icon {
        position: static !important;
        top: auto !important;
        right: auto !important;
        transform: none !important;
        opacity: 1 !important;
        margin-left: 0;
    }

    .card-icon svg {
        width: 24px !important;
        height: 24px !important;
        color: rgba(255, 255, 255, 0.6);
        transition: all 0.4s ease;
    }

    .speed-innovation .card-icon svg {
        color: rgba(82, 130, 255, 0.6) !important;
    }

    .security-innovation .card-icon svg {
        color: rgba(168, 85, 247, 0.6) !important;
    }

    /* Mobile hover effects for vision cards */
    .vision-card:hover .card-icon svg {
        color: rgba(255, 255, 255, 1) !important;
        filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.4));
    }

    .speed-innovation:hover .card-icon svg {
        color: rgba(82, 130, 255, 1) !important;
        filter: drop-shadow(0 0 8px rgba(82, 130, 255, 0.6));
    }

    .security-innovation:hover .card-icon svg {
        color: rgba(168, 85, 247, 1) !important;
        filter: drop-shadow(0 0 8px rgba(168, 85, 247, 0.6));
    }

    .card-content h3 {
        font-size: 1.1rem;
        margin: 0 0 0.5rem 0;
        text-align: left; /* center에서 left로 변경 */
    }

    .card-content p {
        font-size: 0.9rem;
        text-align: left; /* center에서 left로 변경 */
        line-height: 1.5;
    }

    /* Mobile scroll down arrow */
    .scroll-down {
        width: 50px;
        height: 50px;
        bottom: 60px;
    }

    .scroll-down::before {
        width: 10px;
        height: 10px;
    }

    /* Footer mobile layout */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .social-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .mobile-nav {
        width: 280px;
        max-width: 80vw;
    }

    .nav-container {
        padding: 0 16px;
    }

    .hero-content {
        padding: 0 0.5rem;
    }

    .vision-container,
    .speed-hero-content,
    .security-hero-content,
    .final-ending-container {
        padding: 0 0.5rem;
    }

    .card-content {
        padding: 1.5rem;
    }

    .card-body {
        padding-right: clamp(50px, 8vw, 100px);
    }

    .card-icon {
        right: 1.5rem;
    }

    .speed-visual-image,
    .security-visual-image {
        min-height: 250px;
    }

    .speed-details,
    .security-details {
        padding: 1.5rem 1rem;
    }

    .ending-cards {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .ending-card {
        padding: 1.5rem 1.2rem;
    }

    .ending-final-message {
        padding: 2rem 1.5rem;
    }
}

@media (max-width: 360px) {
    .nav-container {
        padding: 0 12px;
    }

    .mobile-nav {
        width: 260px;
        max-width: 85vw;
    }

    .hero-content,
    .vision-container,
    .speed-hero-content,
    .security-hero-content,
    .final-ending-container {
        padding: 0 0.3rem;
    }
    
    .speed-visual-image {
        min-height: 250px;
    }

    /* Same card design as 480px */
    .vision {
        padding: 2.5rem 0.5rem;
    }

    .vision-cards {
        gap: 1.2rem;
        padding: 0 0.3rem;
    }

    .vision-card {
        min-height: 220px;
        border-radius: 18px;
    }

    .card-background {
        border-radius: 18px;
    }

    .card-content {
        padding: 1.2rem 1rem;
    }

    /* Keep icon next to label design on smaller mobile */
    .card-header.mobile-layout {
        display: flex;
        align-items: center;
        justify-content: flex-start; /* center에서 flex-start로 변경 */
        margin-bottom: 0.8rem;
    }

    .card-header.mobile-layout .card-label {
        display: flex;
        align-items: center;
        gap: 0.4rem;
        padding: 0.4rem 0.8rem;
        font-size: 0.65rem;
        margin: 0;
        align-self: center;
    }

    .card-header.mobile-layout .card-icon {
        position: static;
        transform: none;
        opacity: 1;
        right: auto;
        top: auto;
    }

    .card-header.mobile-layout .card-icon svg {
        width: 16px;
        height: 16px;
        color: rgba(255, 255, 255, 0.6);
        transition: all 0.4s ease;
    }

    .speed-innovation .card-header.mobile-layout .card-icon svg {
        color: rgba(82, 130, 255, 0.6);
    }

    .security-innovation .card-header.mobile-layout .card-icon svg {
        color: rgba(168, 85, 247, 0.6);
    }

    /* 360px 이하에서도 hover 효과 유지 */
    .vision-card:hover .card-header.mobile-layout .card-icon svg {
        color: rgba(255, 255, 255, 1) !important;
        filter: drop-shadow(0 0 6px rgba(255, 255, 255, 0.4));
    }

    .speed-innovation:hover .card-header.mobile-layout .card-icon svg {
        color: rgba(82, 130, 255, 1) !important;
        filter: drop-shadow(0 0 6px rgba(82, 130, 255, 0.6));
    }

    .security-innovation:hover .card-header.mobile-layout .card-icon svg {
        color: rgba(168, 85, 247, 1) !important;
        filter: drop-shadow(0 0 6px rgba(168, 85, 247, 0.6));
    }

    /* Hide original icon when in mobile layout */
    .vision-card.mobile-layout .card-icon:not(.mobile-icon) {
        display: none;
    }

    .card-body {
        padding-right: 0;
        gap: 0.4rem;
        text-align: left; /* center에서 left로 변경 */
    }

    .card-content h3 {
        font-size: 1rem;
        margin: 0 0 0.4rem 0;
        text-align: left; /* center에서 left로 변경 */
    }

    .card-content p {
        font-size: 0.85rem;
        text-align: left; /* center에서 left로 변경 */
        line-height: 1.4;
    }

    .speed-visual-image,
    .security-visual-image {
        min-height: 200px;
    }

    .ending-card {
        padding: 1.2rem 1rem;
    }

    .ending-final-message {
        padding: 1.5rem 1.2rem;
    }

    .social-link {
        width: 40px;
        height: 40px;
    }

    .social-link svg {
        width: 20px;
        height: 20px;
    }
}

/* Common background */
.team-bg {
    position: fixed;
    top: 0; 
    left: 0;
    width: 100%; 
    height: 100%;
    background: linear-gradient(135deg, rgba(49, 130, 246, 0.1) 0%, rgba(0, 180, 255, 0.05) 100%), 
                url('../img/1.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;
    transition: opacity 1.2s ease;
    pointer-events: none;
    z-index: 0;
}

.team-bg.visible { 
    opacity: 1; 
}

.team-bg.hidden  { 
    opacity: 0; 
}

/* Team Mission Section */
.team-mission {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
    opacity: 1;
}

.overlay.card {
    background: rgba(80, 80, 80, 0.5);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 1.8rem 2rem;
    border-radius: 20px;
    text-align: left;
    width: 90%;
    max-width: 800px;
    font-size: clamp(1rem, 2.5vw, 1.2rem);
    line-height: 1.8;
    color: #E0E0E0;
    opacity: 1;
    transform: translateY(0);
    transition: opacity 1s ease, transform 1s ease;
    box-shadow: 0 6px 20px rgba(0,0,0,0.4);
    margin: 0 auto;
    word-break: keep-all;
    overflow-wrap: break-word;
}

.team-mission h2 {
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 500;
    color: #E0E0E0;
    margin-bottom: 1.2rem;
    text-align: center;
    word-break: keep-all;
    overflow-wrap: break-word;
}

.team-mission ul { 
    padding-left: 1.5rem; 
}

.team-mission li { 
    margin-bottom: 0.8rem; 
    word-break: keep-all;
    overflow-wrap: break-word;
}

/* Additional mobile optimizations */
@media (max-width: 320px) {
    .nav-container {
        padding: 0 8px;
    }

    .mobile-nav {
        width: 240px;
        max-width: 90vw;
    }

    .hero-content,
    .vision-container,
    .speed-hero-content,
    .security-hero-content,
    .final-ending-container {
        padding: 0 0.1rem;
    }

    .final-ending {
        min-height: 50vh;
        padding: 2rem 0.5rem;
    }

    .final-ending-title {
        font-size: clamp(1.5rem, 4.5vw, 2.8rem);
        line-height: 1.1;
        word-break: keep-all;
        overflow-wrap: normal;
        hyphens: none;
    }

    .section-category {
        font-size: clamp(1.3rem, 3vw, 1.8rem);
        font-weight: 800;
        margin-bottom: 0.6rem;
    }

    .card-content {
        padding: 1rem;
    }

    .card-body {
        padding-right: clamp(35px, 5vw, 60px);
    }

    .ending-card {
        padding: 1rem 0.8rem;
    }

    .ending-final-message {
        padding: 1.2rem 1rem;
    }

    .overlay.card {
        padding: 1.5rem 1.2rem;
        width: 95%;
    }
}

@media (max-width: 400px) {
    .final-ending {
        min-height: 50vh;
        padding: 2rem 0.3rem;
    }

    .final-ending-title {
        font-size: clamp(1.3rem, 4vw, 2.5rem);
        line-height: 1.1;
        word-break: keep-all;
        overflow-wrap: normal;
        hyphens: none;
        white-space: pre-line;
    }
}

/* Hamburger Menu Styles */
.hamburger-menu {
    display: none; /* JavaScript가 동적으로 제어 */
    flex-direction: column;
    cursor: pointer;
    z-index: 1100;
}

.hamburger-menu .bar {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    margin: 3px 0;
    transition: 0.4s;
}

/* Hamburger menu animation */
.hamburger-menu.active .bar:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.hamburger-menu.active .bar:nth-child(2) {
    opacity: 0;
}

.hamburger-menu.active .bar:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* Mobile Navigation */
.mobile-nav {
    display: none;
    position: fixed;
    top: 0;
    left: 70%;
    width: 30%;
    height: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transform: translateX(100%);
    transition: transform 0.3s ease-in-out;
    box-shadow: -4px 0 12px rgba(0, 0, 0, 0.1);
}

.mobile-nav.active {
    transform: translateX(0);
    display: flex;
}

.mobile-nav-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
}

.mobile-nav-overlay.active {
    display: block;
    opacity: 1;
}

.mobile-nav-close {
    position: absolute;
    top: 24px;
    right: 24px;
    background: rgba(0, 0, 0, 0.05);
    border: none;
    cursor: pointer;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1200;
    transition: all 0.2s ease;
}

.mobile-nav-close i {
    font-size: 24px;
    color: var(--text-primary);
}

.mobile-nav-close:hover {
    background: var(--primary);
}

.mobile-nav-close:hover i {
    color: white;
}

.mobile-nav a {
    font-size: 20px;
    margin: 20px 0;
    color: var(--text-primary);
    text-decoration: none;
    width: 100%;
    text-align: center;
}

.mobile-nav-logo {
    padding: 0 32px 32px 32px;
    margin-bottom: 20px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.mobile-nav-logo img {
    height: 60px;
    width: auto;
}

/* Mobile responsive adjustments */
@media (max-width: 768px) {
    .speed-section,
    .security-section {
        padding: 2rem 1rem;
    }
    
    .mobile-nav {
        left: 50%;
        width: 50%;
    }
}

@media (max-width: 480px) {
    .speed-section,
    .security-section {
        padding: 1.5rem 1rem;
    }
    
    .mobile-nav {
        left: 30%;
        width: 70%;
    }
    
    .mobile-nav-close {
        top: 16px;
        right: 16px;
        width: 40px;
        height: 40px;
    }
    
    .mobile-nav-close i {
        font-size: 20px;
    }
    
    .mobile-nav-logo {
        padding: 0 24px 24px 24px;
    }
    
    .mobile-nav-logo img {
        height: 50px;
    }
}

/* Speed Section Responsive */
@media (max-width: 768px) {
    .speed-details {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .speed-features {
        gap: 1.5rem;
    }
    
    .speed-visual-area {
        order: -1; /* 모바일에서 이미지를 위로 */
    }
}