/* 전역 스타일 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2196f3;
    --secondary-color: #1976d2;
    --accent-color: #03a9f4;
    --dark-navy: #1a237e;
    --text-dark: #263238;
    --text-light: #607d8b;
    --bg-light: #f5f9fc;
    --white: #ffffff;
    --shadow: 0 10px 30px rgba(33, 150, 243, 0.1);
    --shadow-hover: 0 15px 40px rgba(33, 150, 243, 0.2);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Malgun Gothic', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 네비게이션 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(33, 150, 243, 0.1);
    box-shadow: 0 4px 30px rgba(33, 150, 243, 0.08);
    z-index: 1000;
    padding: 1.2rem 0;
    transition: all 0.3s ease;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-image {
    width: 45px;
    height: 45px;
    object-fit: contain;
    filter: drop-shadow(0 2px 8px rgba(33, 150, 243, 0.3));
}

.logo h1 {
    color: var(--dark-navy);
    font-size: 1.8rem;
    font-weight: 700;
    margin: 0;
    text-shadow: 0 2px 4px rgba(26, 35, 126, 0.1);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
}

.nav-menu a:hover {
    color: var(--primary-color);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s;
}

.nav-menu a:hover::after {
    width: 100%;
}

/* 모바일 메뉴 토글 버튼 */
.mobile-menu-toggle {
    display: none !important;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 1001;
    margin-left: auto;
}

@media (min-width: 769px) {
    .mobile-menu-toggle {
        display: none !important;
    }
    
    .nav-menu {
        position: static !important;
        display: flex !important;
        width: auto !important;
        height: auto !important;
        background: transparent !important;
        flex-direction: row !important;
        padding: 0 !important;
        box-shadow: none !important;
    }
}

.hamburger-icon {
    font-size: 24px;
    color: #1976d2;
    display: block;
    line-height: 1;
}

.mobile-menu-toggle.active .hamburger-icon {
    font-size: 28px;
}

/* 히어로 섹션 */
.hero {
    padding: 150px 0 100px;
    background: linear-gradient(135deg, #2196f3 0%, #1976d2 100%);
    position: relative;
    overflow: hidden;
    color: var(--white);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.polygon-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

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

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(3, 169, 244, 0.2) 0%, transparent 50%);
    pointer-events: none;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    letter-spacing: -0.5px;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
    font-weight: 400;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-logo {
    width: 100%;
    max-width: 500px;
    height: auto;
    filter: drop-shadow(0 20px 60px rgba(33, 150, 243, 0.4));
}

.hero-image img {
    width: 100%;
    height: auto;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(5deg);
    }
}

/* 버튼 스타일 */
.btn {
    display: inline-block;
    padding: 1.1rem 2.5rem;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--white);
    color: var(--primary-color);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border-color: var(--white);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: var(--white);
    color: var(--primary-color);
    transform: translateY(-3px);
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: var(--white);
}

/* 섹션 공통 스타일 */
section {
    padding: 100px 0;
}

.section-title {
    font-size: 2.8rem;
    text-align: center;
    margin-bottom: 1rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    font-size: 1.2rem;
    margin-bottom: 4rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* 문제 제기 + 솔루션 통합 섹션 */
.problem-solution-wrapper {
    position: relative;
    overflow: hidden !important;
    isolation: isolate;
    clip-path: inset(0);
    margin: 0;
    padding: 0;
    display: block;
}

.problem-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    overflow: hidden !important;
    pointer-events: none;
    clip-path: inset(0);
}

.problem-bg-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    max-width: 100%;
    max-height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
    clip-path: inset(0);
}

/* 문제 제기 섹션 */
.problem-section {
    position: relative;
    min-height: 600px;
    height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
}

.problem-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26, 35, 126, 0.85) 0%, rgba(33, 150, 243, 0.75) 100%);
    z-index: 1;
}

.problem-section .container {
    position: relative;
    z-index: 2;
}

.problem-content {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 80px 0;
}

.problem-text {
    text-align: center;
    max-width: 1000px;
}

.problem-title {
    font-size: 2.8rem;
    font-weight: 600;
    color: #ffffff;
    margin: 0 0 2rem 0;
    line-height: 1.5;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.5);
}

.problem-highlight {
    font-size: 2.6rem;
    font-weight: 700;
    color: #64b5f6;
    margin: 0 0 1.5rem 0;
    line-height: 1.4;
    animation: pulse 2s ease-in-out infinite;
    text-shadow: 3px 3px 15px rgba(0, 0, 0, 0.6);
}

.problem-solution {
    font-size: 1.8rem;
    font-weight: 600;
    color: #e3f2fd;
    margin: 0;
    line-height: 1.6;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.5);
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@media (max-width: 768px) {
    .problem-section {
        min-height: auto !important;
        height: auto !important;
        padding: 40px 0 30px;
    }
    
    .problem-content {
        padding: 0 1rem;
    }
    
    .problem-title {
        font-size: 1.2rem;
        margin-bottom: 1rem;
        line-height: 1.4;
        word-break: keep-all;
    }
    
    .problem-highlight {
        font-size: 1.1rem;
        line-height: 1.4;
        word-break: keep-all;
        margin-bottom: 1rem;
    }
    
    .problem-solution {
        font-size: 0.9rem;
        line-height: 1.5;
        word-break: keep-all;
    }
}

/* 솔루션 강조 섹션 */
.solution-message {
    position: relative;
    min-height: 300px;
    padding: 80px 0;
    z-index: 2;
    background: linear-gradient(135deg, rgba(30, 30, 46, 0.92) 0%, rgba(45, 45, 68, 0.92) 100%);
}

.solution-message::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(139, 92, 246, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(59, 130, 246, 0.15) 0%, transparent 50%);
    pointer-events: none;
}

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

.message-content p {
    margin: 0;
    letter-spacing: 0.02em;
}

.icon-finger {
    display: inline-block;
    margin-right: 0.5rem;
    font-size: 1.2em;
}

.message-line1 {
    font-size: 2rem;
    color: #e5e7eb;
    font-weight: 500;
    margin-bottom: 1.2rem !important;
}

.message-line2 {
    font-size: 2.2rem;
    color: #93c5fd;
    font-weight: 600;
    margin-bottom: 1rem !important;
}

.message-line3 {
    font-size: 2.6rem;
    background: linear-gradient(135deg, #60a5fa 0%, #a78bfa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
    text-shadow: none;
    animation: fadeInUp 1s ease-out;
}


.solution-item {
    font-size: 1.55rem;
    color: #e3f2fd;
    font-weight: 500;
    margin-bottom: 0.9rem !important;
    line-height: 1.6;
    text-align: center;
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
    word-break: keep-all;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Malgun Gothic', sans-serif;
    display: inline-block;
}

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

@media (max-width: 768px) {
    .solution-message {
        min-height: auto;
        padding: 30px 0;
    }
    
    .message-content {
        padding: 0 1rem;
    }
    
    .message-line1 {
        font-size: 0.95rem;
        margin-bottom: 0.8rem !important;
        word-break: keep-all;
    }
    
    .message-line2 {
        font-size: 1rem;
        margin-bottom: 0.6rem !important;
        word-break: keep-all;
    }
    
    .message-line3 {
        font-size: 1.1rem;
        word-break: keep-all;
    }
    
    .solution-item {
        font-size: 0.92rem;
        margin-bottom: 0.7rem !important;
        word-break: keep-all;
        text-align: center;
        line-height: 1.4;
        max-width: 100%;
        margin-left: auto;
        margin-right: auto;
        font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Malgun Gothic', sans-serif;
        display: inline-block;
    }
    
    .icon-finger {
        font-size: 1em;
    }
}

/* 프로그램 쇼케이스 섹션 */
.showcase-section {
    background: linear-gradient(180deg, var(--white) 0%, #e3f2fd 100%);
    padding: 120px 0;
    position: relative;
    overflow: hidden;
}

.showcase-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 50%, rgba(33, 150, 243, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 70% 80%, rgba(25, 118, 210, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.showcase-wrapper {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    perspective: 1500px;
}

.showcase-image {
    width: 100%;
    height: auto;
    border-radius: 24px;
    box-shadow: 
        0 40px 100px rgba(33, 150, 243, 0.3),
        0 20px 60px rgba(33, 150, 243, 0.2),
        0 0 0 1px rgba(33, 150, 243, 0.1);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 2;
    animation: showcaseFloat 4s ease-in-out infinite;
}

.showcase-image:hover {
    transform: translateY(-10px) scale(1.01);
    box-shadow: 
        0 50px 120px rgba(33, 150, 243, 0.4),
        0 30px 80px rgba(33, 150, 243, 0.25),
        0 0 0 1px rgba(33, 150, 243, 0.2);
}

@keyframes showcaseFloat {
    0%, 100% {
        transform: translateY(0) rotateX(0deg);
    }
    50% {
        transform: translateY(-15px) rotateX(2deg);
    }
}

.showcase-indicators {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 30px;
    position: relative;
    z-index: 3;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(33, 150, 243, 0.3);
    cursor: pointer;
    transition: all 0.3s ease;
}

.indicator:hover {
    background: rgba(33, 150, 243, 0.6);
    transform: scale(1.3);
}

.indicator.active {
    background: var(--primary-color);
    width: 30px;
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.5);
}

.showcase-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.showcase-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(33, 150, 243, 0.15) 0%, transparent 70%);
    animation: glowPulse 3s ease-in-out infinite;
    filter: blur(40px);
}

@keyframes glowPulse {
    0%, 100% {
        opacity: 0.5;
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        opacity: 0.8;
        transform: translate(-50%, -50%) scale(1.1);
    }
}

/* 미리보기 그리드 */
.preview-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 4rem;
}

.preview-item {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    cursor: pointer;
}

.preview-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(33, 150, 243, 0.3);
}

.preview-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
    display: block;
}

.preview-caption {
    padding: 1rem;
    text-align: center;
    font-weight: 600;
    color: #1a237e;
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
}

@media (max-width: 768px) {
    .showcase-section {
        padding: 80px 0;
    }
    
    .showcase-image {
        border-radius: 16px;
    }
    
    .preview-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .preview-image {
        height: 200px;
    }
}

@media (max-width: 1024px) and (min-width: 769px) {
    .preview-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 기능 섹션 */
.features {
    background: var(--bg-light);
}

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

.feature-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(33, 150, 243, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: center;
    border: 1px solid rgba(33, 150, 243, 0.1);
}

.feature-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 40px rgba(33, 150, 243, 0.2);
    border-color: rgba(33, 150, 243, 0.4);
}

.feature-image {
    width: 100%;
    height: 180px;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    overflow: hidden;
    background: #f8f9fa;
}

.feature-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.feature-card:hover .feature-image img {
    transform: scale(1.05);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.8;
}

/* 데모 체험 유도 섹션 */
.demo-cta {
    background: linear-gradient(135deg, #1a237e 0%, #2196f3 100%);
    padding: 40px 0;
    position: relative;
    overflow: hidden;
}

.demo-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 120"><path d="M321.39,56.44c58-10.79,114.16-30.13,172-41.86,82.39-16.72,168.19-17.73,250.45-.39C823.78,31,906.67,72,985.66,92.83c70.05,18.48,146.53,26.09,214.34,3V0H0V27.35A600.21,600.21,0,0,0,321.39,56.44Z" fill="rgba(255,255,255,0.05)"></path></svg>') repeat-x;
    background-size: 1200px 120px;
    opacity: 0.3;
}

.demo-cta-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.demo-cta-title {
    font-size: 2.8rem;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.3);
}

.demo-cta-text {
    font-size: 1.3rem;
    color: #e3f2fd;
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

.demo-cta-benefits {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.benefit-item {
    font-size: 1.1rem;
    color: #ffffff;
    font-weight: 600;
    padding: 0.8rem 1.5rem;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50px;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.btn-large {
    font-size: 1.3rem;
    padding: 1.2rem 3rem;
    margin-bottom: 1rem;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    transition: all 0.3s;
}

.btn-large:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.4);
}

.demo-cta-note {
    font-size: 1rem;
    color: #b3e5fc;
    margin-top: 1.5rem;
    font-weight: 500;
}

/* 가격 섹션 */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(33, 150, 243, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: center;
    position: relative;
    border: 2px solid rgba(33, 150, 243, 0.15);
}

.pricing-card:hover {
    transform: translateY(-10px) scale(1.03);
    box-shadow: 0 25px 50px rgba(33, 150, 243, 0.15);
    border-color: rgba(33, 150, 243, 0.4);
}

.pricing-card.featured {
    background: linear-gradient(135deg, #2196f3, #1976d2);
    color: var(--white);
    transform: scale(1.08);
    border: none;
    box-shadow: 0 20px 60px rgba(33, 150, 243, 0.35);
}

.pricing-card.featured:hover {
    transform: translateY(-10px) scale(1.1);
    box-shadow: 0 30px 70px rgba(33, 150, 243, 0.45);
}

.popular-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: #f6ad55;
    color: var(--white);
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
}

.plan-name {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.plan-price {
    margin-bottom: 2rem;
}

.price {
    font-size: 3rem;
    font-weight: 700;
}

.period {
    font-size: 1.2rem;
    opacity: 0.8;
}

.price-breakdown {
    background: rgba(0, 0, 0, 0.05);
    padding: 1rem;
    border-radius: 10px;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.pricing-card.featured .price-breakdown {
    background: rgba(255, 255, 255, 0.1);
}

.price-item {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
}

.price-item.total {
    font-weight: bold;
    font-size: 1.1rem;
    border-top: 2px solid rgba(0, 0, 0, 0.1);
    margin-top: 0.5rem;
    padding-top: 1rem;
}

.pricing-card.featured .price-item.total {
    border-top-color: rgba(255, 255, 255, 0.3);
}

.plan-features {
    list-style: none;
    margin-bottom: 2rem;
    text-align: left;
}

.plan-features li {
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.pricing-card.featured .plan-features li {
    border-bottom-color: rgba(255, 255, 255, 0.2);
}

.pricing-card.featured .btn-primary {
    background: var(--white);
    color: var(--primary-color);
}

/* Gumroad 안내 */
.gumroad-notice {
    margin-top: 3rem;
    padding: 1.5rem 2rem;
    background: rgba(33, 150, 243, 0.05);
    border-left: 4px solid var(--primary-color);
    border-radius: 8px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.gumroad-notice-text {
    color: var(--text-dark);
    font-size: 0.95rem;
    line-height: 1.8;
    margin: 0;
}

.gumroad-notice-text strong {
    color: var(--primary-color);
}

.gumroad-notice-text a {
    color: var(--primary-color);
    text-decoration: underline;
    font-weight: 600;
}

.gumroad-notice-text a:hover {
    color: var(--secondary-color);
}

/* TOP 5 장점 섹션 */
.top-features {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    padding: 100px 0;
}

.top-features-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-top: 3rem;
}

.top-feature-item {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    display: flex;
    gap: 2rem;
    align-items: flex-start;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border-left: 4px solid transparent;
}

.top-feature-item:hover {
    transform: translateX(10px) scale(1.01);
    box-shadow: 0 20px 40px rgba(245, 158, 66, 0.15);
    border-left-color: var(--primary-color);
}

.top-feature-item .number {
    min-width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #2196f3, #1976d2);
    color: var(--white);
    font-size: 2rem;
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.3);
}

.top-feature-item h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--text-dark);
}

.top-feature-item p {
    color: var(--text-light);
    line-height: 1.8;
}

/* 앰비언트 모드 섹션 */
.ambient-section {
    background: linear-gradient(135deg, #1a237e 0%, #283593 100%);
    padding: 100px 0;
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.ambient-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(33, 150, 243, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.ambient-section .section-title,
.ambient-section .section-subtitle {
    color: var(--white);
}

.ambient-image-container {
    margin: 2rem 0;
    text-align: center;
}

.ambient-preview {
    max-width: 100%;
    width: 800px;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    transition: transform 0.3s ease;
}

.ambient-preview:hover {
    transform: scale(1.02);
}

.ambient-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
    position: relative;
    z-index: 1;
}

.ambient-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.4s;
}

.ambient-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.ambient-card.main-card {
    background: rgba(33, 150, 243, 0.3);
    border: 2px solid rgba(33, 150, 243, 0.5);
}

.ambient-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.ambient-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.ambient-card p {
    line-height: 1.8;
    opacity: 0.95;
}

.ambient-list {
    list-style: none;
    padding: 0;
    margin-top: 1rem;
}

.ambient-list li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.ambient-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #64b5f6;
    font-weight: bold;
}

kbd {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.3rem 0.6rem;
    border-radius: 6px;
    font-family: 'Courier New', monospace;
    font-weight: 600;
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.ambient-preview {
    margin: 3rem 0;
    text-align: center;
}

.ambient-image {
    max-width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    cursor: pointer;
    transition: transform 0.4s;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.ambient-image:hover {
    transform: scale(1.02);
}

/* 네트워크 공유 섹션 */
.network-section {
    background: var(--white);
    padding: 100px 0;
}

.network-preview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
    justify-items: center;
}

.network-image {
    width: 100%;
    max-width: 600px;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(33, 150, 243, 0.3);
    cursor: pointer;
    transition: all 0.4s;
    border: 2px solid rgba(33, 150, 243, 0.2);
    display: block;
    margin: 0 auto;
}

.network-image:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(33, 150, 243, 0.4);
}

.network-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.network-step {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    padding: 2.5rem;
    border-radius: 20px;
    text-align: center;
    position: relative;
    border: 2px solid rgba(33, 150, 243, 0.2);
    transition: all 0.4s;
}

.network-step:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(33, 150, 243, 0.2);
    border-color: rgba(33, 150, 243, 0.5);
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #2196f3, #1976d2);
    color: var(--white);
    font-size: 2rem;
    font-weight: 800;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    box-shadow: 0 8px 20px rgba(33, 150, 243, 0.4);
}

.network-step h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
    font-weight: 700;
}

.network-step p {
    color: var(--text-dark);
    line-height: 1.7;
}

code {
    background: rgba(33, 150, 243, 0.1);
    padding: 0.3rem 0.8rem;
    border-radius: 6px;
    font-family: 'Courier New', monospace;
    color: #1976d2;
    word-break: break-all;
    display: inline-block;
    max-width: 100%;
    font-weight: 600;
    border: 1px solid rgba(33, 150, 243, 0.2);
}

.green-dot {
    color: #4caf50;
    font-weight: bold;
}

.network-highlight {
    margin-top: 3rem;
    padding: 2rem;
    background: linear-gradient(135deg, #fff3e0 0%, #ffe0b2 100%);
    border-radius: 15px;
    text-align: center;
    border-left: 4px solid #ff9800;
}

.network-highlight p {
    font-size: 1.2rem;
    color: var(--text-dark);
    margin: 0;
}

/* 활용 예시 섹션 */
.use-cases {
    background: var(--bg-light);
    padding: 100px 0;
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.use-case-card {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.use-case-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow);
}

.use-case-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.use-case-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
    color: var(--text-dark);
}

.use-case-card p {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* 시스템 요구사항 섹션 */
.system-requirements {
    background: var(--bg-light);
    padding: 100px 0;
}

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

.requirement-item {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
    text-align: center;
}

.requirement-item h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #2196f3;
    font-weight: 600;
}

.requirement-item p {
    color: var(--text-dark);
    line-height: 1.8;
    font-size: 1rem;
}

/* 스크린샷 갤러리 섹션 */
.screenshots {
    background: var(--white);
    padding: 100px 0;
}

.screenshot-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.screenshot-item {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(33, 150, 243, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    background: var(--white);
    cursor: pointer;
    border: 1px solid rgba(33, 150, 243, 0.1);
}

.screenshot-item:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 25px 50px rgba(33, 150, 243, 0.2);
    border-color: rgba(33, 150, 243, 0.4);
}

.screenshot-item img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.3s;
}

.screenshot-item:hover img {
    transform: scale(1.05);
}

.screenshot-caption {
    padding: 1rem;
    text-align: center;
    font-weight: 600;
    color: var(--text-dark);
    background: var(--bg-light);
}

/* 주의사항 섹션 */
.warnings {
    background: #fff9f0;
    padding: 100px 0;
}

.warnings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.warning-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    border-left: 4px solid #2196f3;
    box-shadow: 0 4px 20px rgba(33, 150, 243, 0.1);
    transition: transform 0.3s;
}

.warning-card:hover {
    transform: translateY(-5px);
}

.warning-card h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.warning-card p {
    color: var(--text-light);
    line-height: 1.7;
    font-size: 0.95rem;
}

/* FAQ 섹션 */
.faq {
    background: var(--bg-light);
    padding: 100px 0;
}

.faq-list {
    max-width: 900px;
    margin: 3rem auto 0;
}

.faq-item {
    background: var(--white);
    border-radius: 15px;
    margin-bottom: 1.5rem;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
}

.faq-item:hover {
    box-shadow: 0 8px 25px rgba(33, 150, 243, 0.15);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.8rem 2rem;
    cursor: pointer;
    user-select: none;
    transition: background 0.3s;
}

.faq-question:hover {
    background: rgba(33, 150, 243, 0.05);
}

.faq-question h3 {
    font-size: 1.2rem;
    color: var(--text-dark);
    margin: 0;
    font-weight: 600;
}

.faq-icon {
    font-size: 2rem;
    color: var(--primary-color);
    font-weight: 300;
    transition: transform 0.3s;
    line-height: 1;
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out, padding 0.4s ease-out;
    padding: 0 2rem;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 2rem 1.8rem 2rem;
}

.faq-answer p {
    color: var(--text-light);
    line-height: 1.8;
    margin: 0;
}

.faq-answer strong {
    color: var(--primary-color);
    font-weight: 600;
}

/* 문의 섹션 */
.contact {
    background: var(--bg-light);
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    background: var(--white);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(33, 150, 243, 0.12);
    border: 1px solid rgba(33, 150, 243, 0.15);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-dark);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
    background: #fafafa;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #2196f3;
    background: var(--white);
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.15);
    transform: translateY(-2px);
}

.form-group textarea {
    resize: vertical;
}

.contact-form .btn {
    width: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border: none;
}

.contact-form .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
}

/* 푸터 */
.footer {
    background: #2d3748;
    color: var(--white);
    padding: 3rem 0 1rem;
}

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

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

/* 반응형 디자인 */
@media (max-width: 768px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-buttons {
        justify-content: center;
    }

    .nav-menu {
        gap: 1rem;
        font-size: 0.9rem;
    }

    .features-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .section-title {
        font-size: 2rem;
    }

    .pricing-card.featured {
        transform: scale(1);
    }
}

/* 이미지 모달 */
.image-modal {
    display: none;
    position: fixed;
    z-index: 10000;
    padding-top: 60px;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.95);
    animation: fadeIn 0.3s;
}

.image-modal.active {
    display: block;
}

.modal-content {
    margin: auto;
    display: block;
    max-width: 90%;
    max-height: 80vh;
    object-fit: contain;
    animation: zoomIn 0.3s;
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 40px;
    color: #f1f1f1;
    font-size: 50px;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
}

.modal-close:hover,
.modal-close:focus {
    color: #bbb;
}

.modal-caption {
    margin: auto;
    display: block;
    width: 80%;
    max-width: 700px;
    text-align: center;
    color: #ccc;
    padding: 20px 0;
    font-size: 1.2rem;
}

@keyframes zoomIn {
    from {
        transform: scale(0.8);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .nav-menu {
        flex-direction: column;
        gap: 0.5rem;
    }

    .contact-form {
        padding: 2rem;
    }

    .modal-content {
        max-width: 100%;
    }

    .modal-close {
        font-size: 35px;
        right: 20px;
    }
}

/* 결제 수단 선택 모달 */
.payment-modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
}

.payment-modal-content {
    position: relative;
    background: linear-gradient(135deg, #ffffff 0%, #f5f7fa 100%);
    margin: 10% auto;
    padding: 3rem;
    width: 90%;
    max-width: 500px;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.payment-modal-content h3 {
    color: #1a237e;
    font-size: 1.8rem;
    margin-bottom: 2rem;
    text-align: center;
}

.payment-options {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.payment-option-btn {
    flex: 1;
    padding: 2rem 1rem;
    border: 2px solid #e0e0e0;
    border-radius: 15px;
    background: white;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
}

.payment-option-btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(33, 150, 243, 0.3);
    border-color: #2196f3;
}

.payment-option-btn.nice-btn:hover {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
}

.payment-option-btn.kakao-btn:hover {
    background: linear-gradient(135deg, #fff9c4 0%, #ffeb3b 100%);
}

.payment-icon {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.payment-name {
    font-size: 1.2rem;
    font-weight: bold;
    color: #1a237e;
    margin-bottom: 0.5rem;
}

.payment-desc {
    font-size: 0.9rem;
    color: #666;
}

.payment-cancel-btn {
    width: 100%;
    padding: 1rem;
    background: #f5f5f5;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    color: #666;
    cursor: pointer;
    transition: all 0.3s ease;
}

.payment-cancel-btn:hover {
    background: #e0e0e0;
    color: #333;
}

@media (max-width: 768px) {
    .payment-options {
        flex-direction: column;
    }
    
    .payment-modal-content {
        padding: 2rem;
        margin: 20% auto;
    }
    
    /* 모바일 메뉴 */
    .mobile-menu-toggle {
        display: flex !important;
    }
    
    .nav-menu {
        position: fixed !important;
        top: 60px !important;
        right: -100%;
        width: 140px !important;
        background: rgba(255, 255, 255, 0.98) !important;
        backdrop-filter: blur(20px) !important;
        flex-direction: column !important;
        padding: 0.5rem !important;
        gap: 0.2rem !important;
        transition: right 0.3s ease !important;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1) !important;
        z-index: 999 !important;
        display: flex !important;
        border-radius: 0 0 0 8px !important;
    }
    
    .nav-menu.active {
        right: 0 !important;
    }
    
    .nav-menu li {
        width: 100%;
    }
    
    .nav-menu a {
        display: block;
        padding: 0.5rem 0.8rem;
        border-radius: 4px;
        transition: all 0.3s;
        font-size: 0.85rem;
    }
    
    .nav-menu a:hover {
        background: rgba(33, 150, 243, 0.1);
    }
    
    /* 히어로 섹션 모바일 최적화 */
    .hero {
        padding: 80px 0 60px;
        min-height: 100vh;
    }
    
    .hero .container {
        flex-direction: column;
        padding: 0 1rem;
    }
    
    .hero-content {
        text-align: center;
        margin-bottom: 1.5rem;
    }
    
    .hero-title {
        font-size: 1.5rem;
        line-height: 1.4;
        margin-bottom: 1rem;
        word-break: keep-all;
    }
    
    .hero-subtitle {
        font-size: 0.85rem;
        line-height: 1.5;
        word-break: keep-all;
        padding: 0 0.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 0.8rem;
    }
    
    .hero-buttons .btn {
        width: 100%;
        padding: 0.8rem;
        font-size: 0.9rem;
    }
    
    .hero-image {
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
    }
    
    /* 섹션 타이틀 모바일 */
    .section-title {
        font-size: 1.5rem;
        line-height: 1.3;
        word-break: keep-all;
        white-space: nowrap;
    }
    
    .section-subtitle {
        font-size: 1rem;
        margin-bottom: 2rem;
        word-break: keep-all;
    }
    
    /* 가격 카드 모바일 */
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .pricing-card {
        padding: 2rem;
    }
    
    .price {
        font-size: 2.2rem;
    }
    
    .price-breakdown {
        font-size: 0.9rem;
    }
    
    /* 기능 카드 모바일 */
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .feature-card {
        padding: 2rem;
    }
    
    /* TOP 5 모바일 */
    .top-features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .top-feature-item {
        padding: 1.5rem;
        flex-direction: column;
        gap: 1rem;
    }
    
    .top-feature-item .number {
        min-width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }
    
    .top-feature-item h3 {
        font-size: 1.1rem;
        line-height: 1.4;
        word-break: keep-all;
        overflow-wrap: break-word;
    }
    
    .top-feature-item p {
        font-size: 0.95rem;
        word-break: keep-all;
        overflow-wrap: break-word;
    }
    
    /* 앰비언트 모바일 */
    .ambient-content {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .ambient-card {
        padding: 1.5rem;
    }
    
    .ambient-preview {
        width: 100%;
    }
    
    /* 네트워크 모바일 */
    .network-preview {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .network-image {
        max-width: 100%;
        width: 100%;
    }
    
    .network-steps {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .network-step {
        padding: 1.5rem;
    }
    
    /* FAQ 모바일 */
    .faq-item {
        padding: 1.5rem;
    }
    
    .faq-question {
        padding: 1rem 1rem;
    }
    
    .faq-question h3 {
        font-size: 0.85rem;
        line-height: 1.3;
    }
    
    .faq-icon {
        font-size: 1.5rem;
        min-width: 30px;
    }
    
    /* 스크린샷 그리드 모바일 */
    .screenshot-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    /* 데모 체험 유도 섹션 모바일 */
    .demo-cta {
        padding: 30px 0;
    }
    
    .demo-cta-content {
        padding: 0 1rem;
    }
    
    .demo-cta-title {
        font-size: 1.6rem;
        margin-bottom: 1rem;
    }
    
    .demo-cta-text {
        font-size: 1rem;
        margin-bottom: 1.5rem;
    }
    
    .demo-cta-benefits {
        flex-direction: column;
        gap: 0.8rem;
        margin-bottom: 1.5rem;
    }
    
    .benefit-item {
        font-size: 0.9rem;
        padding: 0.6rem 1rem;
    }
    
    .btn-large {
        font-size: 1rem;
        padding: 1rem 2rem;
        width: 100%;
    }
    
    .demo-cta-note {
        font-size: 0.85rem;
    }
    
    /* Gumroad 안내 모바일 */
    .gumroad-notice {
        margin-top: 2rem;
        padding: 1rem 1.5rem;
    }
    
    .gumroad-notice-text {
        font-size: 0.85rem;
    }
    
    /* 푸터 모바일 */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    /* 네비게이션 모바일 - 삭제됨 (위에 이미 정의됨) */
    
    .logo {
        gap: 0.5rem;
    }
    
    .logo-image {
        width: 35px;
        height: 35px;
    }
    
    .logo h1 {
        font-size: 1rem;
        white-space: nowrap;
    }
}