/* ==========================================================================
   중국 무역대행 랜딩페이지 - 메인 스타일시트
   ========================================================================== */

/* ==========================================================================
   1. CSS 변수 (쉬운 색상 변경)
   ========================================================================== */
:root {
    --primary-color: #FF6B00;
    --secondary-color: #0066FF;
    --accent-color: #FFD700;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --dark-color: #212529;
    --gray-color: #6c757d;
    --light-gray: #f8f9fa;
    --white: #ffffff;
    
    --font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    --transition: all 0.3s ease;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.15);
}

/* ==========================================================================
   2. 리셋 & 기본 스타일
   ========================================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    line-height: 1.7;
    color: var(--dark-color);
    background-color: var(--white);
    font-size: 16px;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul, ol {
    list-style: none;
}

/* ==========================================================================
   3. 공통 컴포넌트
   ========================================================================== */

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

/* 섹션 공통 */
section {
    padding: 80px 0;
}

section:nth-child(even) {
    background-color: var(--light-gray);
}

/* 섹션 타이틀 */
.section-title {
    font-size: 2.5rem;
    font-weight: 900;
    text-align: center;
    margin-bottom: 60px;
    line-height: 1.3;
    color: var(--dark-color);
}

.subsection-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin: 60px 0 40px;
    color: var(--dark-color);
}

/* CTA 버튼 공통 */
.cta-button {
    display: inline-block;
    padding: 16px 32px;
    font-size: 1.1rem;
    font-weight: 700;
    text-align: center;
    border-radius: 8px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    min-height: 56px;
}

.cta-button.primary {
    background-color: var(--primary-color);
    color: var(--white);
    box-shadow: var(--shadow);
}

.cta-button.primary:hover {
    background-color: #e55f00;
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.cta-button.secondary {
    background-color: var(--white);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.cta-button.secondary:hover {
    background-color: var(--primary-color);
    color: var(--white);
}

.cta-button i {
    margin-right: 8px;
}

/* ==========================================================================
   4. 플로팅 CTA 버튼 (모바일)
   ========================================================================== */
.floating-cta {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: none;
    gap: 10px;
    z-index: 1000;
    opacity: 0;
    transition: var(--transition);
}

.floating-cta.show {
    opacity: 1;
}

.floating-btn {
    padding: 14px 24px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.95rem;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    gap: 8px;
}

.floating-btn.phone-btn {
    background-color: var(--success-color);
    color: var(--white);
}

.floating-btn.kakao-btn {
    background-color: #FEE500;
    color: #3C1E1E;
}

/* Back to Top 버튼 */
.back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow);
    z-index: 999;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: #e55f00;
    transform: translateY(-4px);
}

/* ==========================================================================
   5. Hero 섹션
   ========================================================================== */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.hero::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 1440 320"><path fill="rgba(255,255,255,0.1)" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,154.7C960,171,1056,181,1152,165.3C1248,149,1344,107,1392,85.3L1440,64L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
    background-size: cover;
    opacity: 0.3;
}

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

.hero-title {
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: 24px;
    line-height: 1.2;
    animation: fadeInUp 0.8s ease;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 48px;
    opacity: 0.95;
    line-height: 1.6;
    animation: fadeInUp 1s ease;
}

.hero-benefits {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-bottom: 48px;
    text-align: center;
}

.benefit-item {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 24px;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    align-items: center;
    animation: fadeInUp 1.2s ease;
}

.benefit-item i {
    font-size: 2rem;
    color: var(--accent-color);
    flex-shrink: 0;
}

.benefit-item strong {
    display: block;
    font-size: 1.1rem;
    margin-bottom: 6px;
    text-align: center;
}

.benefit-item span {
    font-size: 0.95rem;
    opacity: 0.9;
    text-align: center;
}

.hero-trust-badges {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 24px;
    margin-bottom: 48px;
}

.badge-item {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 20px;
    border-radius: 12px;
    text-align: center;
    animation: fadeInUp 1.4s ease;
}

.badge-item i {
    font-size: 2.5rem;
    margin-bottom: 12px;
    color: var(--accent-color);
}

.badge-item span {
    font-size: 0.9rem;
    line-height: 1.4;
}

.badge-item strong {
    display: block;
    font-size: 1.5rem;
    font-weight: 900;
    margin-top: 4px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1.6s ease;
}

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

/* ==========================================================================
   6. 문제 인식 섹션
   ========================================================================== */
.problem-section {
    background-color: var(--light-gray);
}

.problem-grid {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 32px;
    margin-bottom: 48px;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.problem-item {
    background: var(--white);
    padding: 32px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    flex: 0 1 calc(50% - 16px);
    max-width: 450px;
    min-width: 300px;
}

.problem-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.problem-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a6f 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.problem-icon i {
    font-size: 2.5rem;
    color: var(--white);
}

.problem-item h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--dark-color);
}

.problem-item p {
    color: var(--gray-color);
    line-height: 1.7;
}

.empathy-text {
    text-align: center;
    padding: 48px 32px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 16px;
    color: var(--white);
}

.empathy-text p {
    font-size: 1.3rem;
    font-weight: 500;
    line-height: 1.8;
}

/* ==========================================================================
   7. 솔루션 섹션
   ========================================================================== */
.solution-section {
    background-color: var(--white);
}

.solution-grid {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 32px;
    margin-bottom: 48px;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.solution-card {
    background: var(--light-gray);
    padding: 40px 32px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-top: 4px solid var(--primary-color);
    flex: 0 1 calc(50% - 16px);
    max-width: 450px;
    min-width: 280px;
}

.solution-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.solution-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: linear-gradient(135deg, var(--primary-color) 0%, #e55f00 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.solution-icon i {
    font-size: 2.5rem;
    color: var(--white);
}

.solution-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-align: center;
    color: var(--dark-color);
}

.solution-card ul {
    list-style: none;
    text-align: center;
}

.solution-card ul li {
    padding: 12px 0;
    color: var(--gray-color);
    line-height: 1.6;
    text-align: center;
}

.solution-card ul li::before {
    content: '✓ ';
    color: var(--success-color);
    font-weight: 900;
    font-size: 1.2rem;
}

.solution-cta {
    text-align: center;
}

/* ==========================================================================
   8. 서비스 섹션
   ========================================================================== */
.services-section {
    background-color: var(--light-gray);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    margin-bottom: 48px;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.service-card {
    background: var(--white);
    padding: 40px 32px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    width: 100%;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.service-number {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color) 0%, #e55f00 100%);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 900;
}

.service-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--dark-color);
    text-align: center;
}

.service-for,
.service-process,
.service-benefits {
    margin-bottom: 24px;
    text-align: center;
}

.service-for strong,
.service-process strong,
.service-benefits strong {
    display: block;
    font-size: 1rem;
    color: var(--primary-color);
    margin-bottom: 12px;
    text-align: center;
}

.service-for ul,
.service-benefits ul {
    list-style: none;
    padding-left: 0;
    text-align: center;
}

.service-for li,
.service-benefits li {
    padding: 8px 0;
    color: var(--gray-color);
    line-height: 1.5;
    text-align: center;
}

.service-for li::before {
    content: '▪ ';
    color: var(--secondary-color);
}

.service-benefits li i {
    margin-right: 6px;
    color: var(--success-color);
}

.process-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
    font-size: 0.9rem;
}

.process-steps span {
    background: var(--light-gray);
    padding: 6px 12px;
    border-radius: 20px;
    white-space: nowrap;
}

.process-steps i {
    color: var(--primary-color);
    font-size: 0.8rem;
}

.services-cta {
    text-align: center;
}

/* ==========================================================================
   9. 프로세스 섹션
   ========================================================================== */
.process-section {
    background-color: var(--white);
}

.timeline {
    max-width: 900px;
    margin: 0 auto 48px;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 40px;
    top: 40px;
    bottom: 40px;
    width: 4px;
    background: linear-gradient(180deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

.timeline-item {
    display: flex;
    gap: 32px;
    margin-bottom: 60px;
    position: relative;
}

.timeline-marker {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color) 0%, #e55f00 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    z-index: 1;
    box-shadow: 0 4px 12px rgba(255, 107, 0, 0.3);
}

.timeline-marker span {
    font-size: 2rem;
    font-weight: 900;
    color: var(--white);
}

.timeline-content {
    flex: 1;
    background: var(--light-gray);
    padding: 32px;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.timeline-content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--dark-color);
    text-align: center;
}

.timeline-duration {
    font-size: 0.95rem;
    color: var(--primary-color);
    font-weight: 700;
    margin-bottom: 16px;
    text-align: center;
}

.timeline-content ul {
    list-style: none;
    text-align: center;
}

.timeline-content li {
    padding: 8px 0;
    color: var(--gray-color);
    line-height: 1.6;
    text-align: center;
}

.process-summary {
    text-align: center;
    padding: 32px;
    background: var(--light-gray);
    border-radius: 12px;
    max-width: 800px;
    margin: 0 auto;
}

.process-summary p {
    font-size: 1.1rem;
    margin-bottom: 12px;
}

.process-note {
    font-style: italic;
    color: var(--gray-color);
}

/* ==========================================================================
   10. 신뢰 구축 섹션
   ========================================================================== */
.trust-section {
    background-color: var(--light-gray);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 24px;
    margin-bottom: 80px;
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
}

.stat-item {
    background: var(--white);
    padding: 32px 20px;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.stat-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 1rem;
    color: var(--gray-color);
}

/* 고객 후기 */
.testimonials {
    margin-bottom: 80px;
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.testimonial-card {
    background: var(--white);
    padding: 32px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.testimonial-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.testimonial-stars {
    font-size: 1.2rem;
    margin-bottom: 16px;
    text-align: center;
}

.testimonial-text {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--gray-color);
    margin-bottom: 20px;
    font-style: italic;
    text-align: center;
}

.testimonial-author {
    font-weight: 700;
    color: var(--dark-color);
    text-align: center;
}

/* 포트폴리오 */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.portfolio-item {
    text-align: center;
}

.portfolio-image {
    width: 100%;
    height: 200px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    transition: var(--transition);
}

.portfolio-item:hover .portfolio-image {
    transform: scale(1.05);
}

.portfolio-item p {
    font-weight: 600;
    color: var(--dark-color);
}

/* ==========================================================================
   11. 타겟별 제안 섹션
   ========================================================================== */
.targets-section {
    background-color: var(--white);
}

.targets-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.target-card {
    background: var(--light-gray);
    padding: 40px 32px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-left: 6px solid var(--primary-color);
}

.target-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.target-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: linear-gradient(135deg, var(--secondary-color) 0%, #0052cc 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.target-icon i {
    font-size: 2.5rem;
    color: var(--white);
}

.target-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 24px;
    text-align: center;
    color: var(--dark-color);
}

.target-problems,
.target-solution,
.target-service {
    margin-bottom: 20px;
    text-align: center;
}

.target-problems strong,
.target-solution strong,
.target-service strong {
    display: block;
    font-size: 1rem;
    color: var(--secondary-color);
    margin-bottom: 12px;
    text-align: center;
}

.target-problems ul,
.target-solution ul {
    list-style: none;
    text-align: center;
}

.target-problems li {
    padding: 8px 0;
    color: var(--gray-color);
    line-height: 1.5;
    text-align: center;
}

.target-problems li::before {
    content: '✗ ';
    color: var(--danger-color);
    font-weight: 900;
}

.target-solution li {
    padding: 8px 0;
    color: var(--gray-color);
    line-height: 1.5;
    text-align: center;
}

.target-solution li i {
    margin-right: 6px;
    color: var(--success-color);
}

.target-service {
    padding: 16px;
    background: rgba(0, 102, 255, 0.1);
    border-radius: 8px;
    text-align: center;
    color: var(--secondary-color);
}

.target-card .cta-button {
    width: 100%;
    margin-top: 20px;
}

/* ==========================================================================
   12. FAQ 섹션
   ========================================================================== */
.faq-section {
    background-color: var(--light-gray);
}

.faq-container {
    max-width: 900px;
    margin: 0 auto 48px;
}

.faq-item {
    background: var(--white);
    margin-bottom: 16px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.faq-question {
    padding: 24px 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--dark-color);
    transition: var(--transition);
    text-align: center;
}

.faq-question:hover {
    background-color: var(--light-gray);
}

.faq-question i {
    transition: transform 0.3s ease;
    color: var(--primary-color);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 32px;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 32px 24px;
}

.faq-answer p {
    color: var(--gray-color);
    line-height: 1.8;
}

.faq-cta {
    text-align: center;
}

.faq-cta p {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 20px;
}

/* ==========================================================================
   13. 최종 CTA 섹션
   ========================================================================== */
.final-cta-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
    padding: 100px 0;
}

.final-cta-section .section-title {
    color: var(--white);
}

.urgency-box {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 32px;
    border-radius: 12px;
    text-align: center;
    margin-bottom: 40px;
}

.urgency-text {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.benefits-box {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 32px;
    border-radius: 12px;
    text-align: center;
    margin-bottom: 40px;
}

.benefits-box h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.benefits-box ul {
    list-style: none;
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.benefits-box li {
    padding: 12px 0;
    line-height: 1.6;
    text-align: center;
}

.benefits-box li::before {
    content: '🎁 ';
}

.final-cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

.cta-button.kakao-large {
    background-color: #FEE500;
    color: #3C1E1E;
    font-size: 1.2rem;
    padding: 20px 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.cta-button.phone-large {
    background-color: var(--success-color);
    color: var(--white);
    font-size: 1.2rem;
    padding: 20px 40px;
}

/* 문의 폼 */
.contact-form {
    max-width: 700px;
    margin: 0 auto 60px;
    background: rgba(255, 255, 255, 0.95);
    padding: 48px 40px;
    border-radius: 12px;
    box-shadow: var(--shadow-hover);
}

.contact-form h3 {
    color: var(--dark-color);
    text-align: center;
    margin-bottom: 32px;
    font-size: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 16px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    font-family: var(--font-family);
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    color: var(--dark-color);
    font-weight: 600;
    margin-bottom: 12px;
    text-align: center;
}

.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--dark-color);
    font-weight: 400;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
}

.contact-form button {
    width: 100%;
}

/* 신뢰 마크 */
.trust-marks {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.trust-mark {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
}

.trust-mark i {
    font-size: 1.5rem;
    color: var(--accent-color);
}

/* ==========================================================================
   14. Footer
   ========================================================================== */
.footer {
    background-color: var(--dark-color);
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-bottom: 40px;
    text-align: center;
}

.footer-section h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--white);
    text-align: center;
}

.footer-section p,
.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
    font-size: 0.95rem;
}

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

.footer-section i {
    margin-right: 8px;
    color: var(--primary-color);
}

.footer-section ul li {
    margin-bottom: 12px;
    text-align: center;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

/* ==========================================================================
   15. 반응형 디자인 (모바일 최적화)
   ========================================================================== */

/* 태블릿 */
@media (max-width: 1024px) {
    .section-title {
        font-size: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
}

/* 모바일 */
@media (max-width: 768px) {
    /* 플로팅 CTA 활성화 */
    .floating-cta {
        display: flex;
    }
    
    section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 1.75rem;
        margin-bottom: 40px;
    }
    
    .subsection-title {
        font-size: 1.5rem;
    }
    
    /* Hero */
    .hero {
        padding: 60px 0;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-benefits {
        grid-template-columns: 1fr;
    }
    
    .hero-trust-badges {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .hero-cta .cta-button {
        width: 100%;
    }
    
    /* Grid 레이아웃 */
    .problem-grid,
    .solution-grid,
    .services-grid,
    .targets-grid,
    .testimonial-grid,
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .service-card {
        max-width: 100%;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Timeline */
    .timeline::before {
        left: 20px;
    }
    
    .timeline-marker {
        width: 60px;
        height: 60px;
    }
    
    .timeline-marker span {
        font-size: 1.5rem;
    }
    
    .timeline-item {
        gap: 20px;
    }
    
    /* Form */
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .checkbox-group {
        grid-template-columns: 1fr;
    }
    
    .contact-form {
        padding: 32px 24px;
    }
    
    /* Final CTA */
    .final-cta-buttons {
        flex-direction: column;
    }
    
    .cta-button.kakao-large,
    .cta-button.phone-large {
        width: 100%;
    }
    
    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    /* Trust marks */
    .trust-marks {
        flex-direction: column;
        align-items: center;
    }
}

/* 초소형 모바일 */
@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .cta-button {
        font-size: 1rem;
        padding: 14px 24px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-trust-badges {
        grid-template-columns: 1fr;
    }
}

/* ==========================================================================
   16. 스크롤 애니메이션
   ========================================================================== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.appear {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================================================
   17. 유틸리티 클래스
   ========================================================================== */
.text-center {
    text-align: center;
}

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

.text-secondary {
    color: var(--secondary-color);
}

.mt-20 {
    margin-top: 20px;
}

.mb-20 {
    margin-bottom: 20px;
}

/* 프린트 최적화 */
@media print {
    .floating-cta,
    .back-to-top {
        display: none;
    }
}