/* ===== 기본 설정 ===== */
:root {
    --primary-color: #0060ad;
    --primary-dark: #004080;
    --secondary-color: #222222;
    --accent-color: #0090ff;
    --text-color: #333333;
    --text-light: #666666;
    --bg-light: #f8f9fa;
    --bg-dark: #1a1a1a;
    --white: #ffffff;
    --kakao-color: #fee500;
    --success-color: #28a745;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
    --border-radius: 12px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Pretendard Variable', Pretendard, -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
}

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

/* ===== 헤더 ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: transparent;
    transition: var(--transition);
}

.header.scrolled {
    background: var(--white);
    box-shadow: var(--shadow);
}

.header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: rgba(255, 255, 255, 0.2);
}

.header.scrolled::after {
    background: rgba(0, 0, 0, 0.1);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 40px;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo img:first-child {
    height: 60px;
    transition: var(--transition);
}

.logo-text {
    font-size: 24px;
    font-weight: 700;
    color: var(--white);
    transition: var(--transition);
}

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

.logo-text-img {
    height: 28px;
    width: auto;
}

.logo .logo-text-dark {
    display: none !important;
}

.header.scrolled .logo .logo-text-white {
    display: none !important;
}

.header.scrolled .logo .logo-text-dark {
    display: block !important;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-list a {
    font-size: 17px;
    font-weight: 600;
    color: var(--white);
    transition: var(--transition);
    position: relative;
}

.header.scrolled .nav-list a {
    color: var(--secondary-color);
}

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

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

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--white);
    border-radius: 3px;
    transition: var(--transition);
}

.header.scrolled .mobile-menu-btn span {
    background: var(--secondary-color);
}

/* ===== 히어로 섹션 ===== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: #1a1a1a;
}

.hero-slider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1s ease, transform 6s ease;
    transform: scale(1.05);
}

.hero-slide.active {
    opacity: 1;
    transform: scale(1);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, rgba(0, 0, 0, 0.5) 0%, rgba(0, 0, 0, 0.25) 50%, rgba(0, 0, 0, 0.1) 100%);
    z-index: 1;
}

.hero-wrapper {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 50px;
    padding-top: 30vh;
}

.hero-content {
    color: var(--white);
    text-align: left;
    max-width: 850px;
}

.hero-title {
    font-size: 52px;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 12px;
    letter-spacing: -0.5px;
    text-shadow:
        0 2px 4px rgba(0, 0, 0, 0.3),
        0 4px 8px rgba(0, 0, 0, 0.2),
        0 8px 16px rgba(0, 0, 0, 0.1);
}

.hero-desc {
    font-size: 26px;
    font-weight: 600;
    line-height: 1.7;
    margin-bottom: 18px;
    text-shadow:
        0 2px 4px rgba(0, 0, 0, 0.3),
        0 4px 8px rgba(0, 0, 0, 0.2),
        0 8px 16px rgba(0, 0, 0, 0.1);
}

.hero-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 40px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 30px;
    transition: var(--transition);
}

.hero-btn.primary {
    background: var(--primary-color);
    color: var(--white);
    border: none;
}

.hero-btn.primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 96, 173, 0.4);
}

.hero-pagination {
    position: absolute;
    bottom: 40px;
    right: 50px;
    z-index: 2;
    display: flex;
    gap: 10px;
}

.hero-pagination .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: var(--transition);
}

.hero-pagination .dot.active {
    background: var(--primary-color);
    width: 32px;
    border-radius: 5px;
}

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

.section-subtitle {
    text-align: center;
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 10px;
}

.section-title {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--secondary-color);
}

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

.section-title-large {
    text-align: center;
    font-size: 48px;
    font-weight: 900;
    margin-bottom: 60px;
    color: var(--secondary-color);
}

.section-title-large .highlight,
.section-title .highlight {
    color: var(--primary-color);
}

.section-desc {
    text-align: center;
    font-size: 16px;
    color: var(--text-light);
    margin-bottom: 60px;
}

.highlight-box {
    background: var(--primary-color);
    color: var(--white);
    padding: 5px 15px;
    border-radius: 5px;
}

/* ===== 상담 & 시공 올인원 서비스 섹션 ===== */
.allinone-service {
    background: var(--bg-light);
    padding: 120px 0 140px;
    position: relative;
    overflow: hidden;
}

.allinone-service .container {
    position: relative;
    z-index: 1;
}

.allinone-service .section-title {
    font-size: 42px;
    font-weight: 800;
}

.allinone-wrapper {
    display: flex;
    flex-direction: column;
    gap: 140px;
    margin-top: 100px;
}

.allinone-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.allinone-row:not(.reverse) {
    margin-right: 40px;
}

.allinone-row.reverse {
    direction: rtl;
    margin-left: 40px;
}

.allinone-row.reverse > * {
    direction: ltr;
}

.allinone-text-group {
    display: flex;
    flex-direction: column;
    gap: 55px;
}

.allinone-row:not(.reverse) .allinone-text-group {
    text-align: right;
}

.allinone-row.reverse .allinone-text-group {
    text-align: left;
}

.allinone-item h3 {
    font-size: 24px;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 20px;
    display: inline-block;
    position: relative;
}

.allinone-row:not(.reverse) .allinone-item h3::after {
    content: '';
    position: absolute;
    right: -20px;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 70%;
    background: var(--primary-color);
    border-radius: 2px;
}

.allinone-row.reverse .allinone-item h3::before {
    content: '';
    position: absolute;
    left: -20px;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 70%;
    background: var(--primary-color);
    border-radius: 2px;
}

.allinone-item p {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-color);
    line-height: 2;
}

.allinone-image {
    position: relative;
    border-radius: var(--border-radius);
    overflow: visible;
}

.allinone-image::before {
    content: '';
    position: absolute;
    top: 12px;
    left: 12px;
    width: 100%;
    height: 100%;
    background: var(--primary-color);
    border-radius: var(--border-radius);
    z-index: -1;
    opacity: 0.15;
    transition: var(--transition);
}

.allinone-row.reverse .allinone-image::before {
    left: auto;
    right: 12px;
}

.allinone-image:hover::before {
    top: 8px;
    left: 8px;
    opacity: 0.25;
}

.allinone-row.reverse .allinone-image:hover::before {
    left: auto;
    right: 8px;
}

.allinone-image img {
    width: 100%;
    height: 380px;
    object-fit: cover;
    transition: var(--transition);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
}

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

/* ===== 시공영역 섹션 ===== */
.service-area {
    background: var(--bg-light);
    padding: 100px 0;
}

.service-area-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 25px;
    margin-top: 60px;
}

.service-area-card {
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.service-area-image {
    width: 100%;
    aspect-ratio: 1;
    overflow: hidden;
}

.service-area-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%);
    transition: var(--transition);
}

.service-area-card:hover .service-area-image img {
    filter: grayscale(0%);
    transform: scale(1.05);
}

.service-area-label {
    display: block;
    text-align: center;
    padding: 18px 10px;
    font-size: 16px;
    font-weight: 700;
    color: var(--secondary-color);
    background: var(--white);
}

@media (max-width: 1024px) {
    .service-area-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .service-area-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .service-area-label {
        font-size: 14px;
        padding: 15px 8px;
    }
}

@media (max-width: 480px) {
    .service-area-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ===== 차별점 섹션 (새 디자인) ===== */
.difference {
    background: var(--bg-light);
    padding: 80px 0;
}

.difference .section-title {
    font-size: 32px;
    font-weight: 800;
}

.difference .section-desc {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-light);
}

.difference-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 35px;
    margin-top: 40px;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.difference-card {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.difference-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.difference-image {
    width: 100%;
    overflow: hidden;
    position: relative;
}

.difference-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition);
}

.difference-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.25);
}

.difference-card:hover .difference-image img {
    transform: scale(1.05);
    transition: var(--transition);
}

.difference-label {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 24px;
    font-weight: 700;
    color: var(--white);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
    line-height: 1.3;
    text-align: center;
}

@media (max-width: 768px) {
    .difference-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .difference-label {
        font-size: 16px;
    }
}

@media (max-width: 1024px) {
    .allinone-wrapper {
        gap: 60px;
    }

    .allinone-row {
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .allinone-wrapper {
        gap: 50px;
    }

    .allinone-row {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .allinone-row.reverse {
        direction: ltr;
    }

    .allinone-row:not(.reverse) .allinone-text-group,
    .allinone-row.reverse .allinone-text-group {
        text-align: center;
    }

    .allinone-item h3 {
        font-size: 20px;
    }

    .allinone-item p {
        font-size: 14px;
    }

    .allinone-image img {
        height: 280px;
    }
}

/* ===== 작업 프로세스 + 장비 섹션 ===== */
.process-equipment {
    background: linear-gradient(180deg, #e8f4fc 0%, #f0f7fb 100%);
    padding: 100px 0 120px;
    position: relative;
}

/* 타임라인 */
.process-timeline {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 30px;
    margin-bottom: 100px;
    position: relative;
    padding-top: 30px;
}

/* 타임라인 트랙 (가로선) */
.timeline-track {
    position: absolute;
    top: 65px;
    left: 50%;
    transform: translateX(-50%);
    width: 75%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color) 0%, #64b5f6 50%, var(--secondary-color) 100%);
    border-radius: 2px;
    z-index: 1;
}

.timeline-track::before,
.timeline-track::after {
    content: '';
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 12px;
    height: 12px;
    background: var(--primary-color);
    border-radius: 50%;
}

.timeline-track::before {
    left: -6px;
}

.timeline-track::after {
    right: -6px;
    background: var(--secondary-color);
}

.timeline-item {
    flex: 1;
    max-width: 200px;
    text-align: center;
    position: relative;
    z-index: 2;
}

/* 타임라인 노드 (원형) */
.timeline-node {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color) 0%, #2196f3 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    box-shadow: 0 4px 20px rgba(0, 96, 173, 0.35);
    position: relative;
    transition: var(--transition);
}

.timeline-node::before {
    content: '';
    position: absolute;
    width: 84px;
    height: 84px;
    border: 2px solid rgba(0, 96, 173, 0.2);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.5; }
}

.timeline-node.dark {
    background: linear-gradient(135deg, var(--secondary-color) 0%, #455a64 100%);
    box-shadow: 0 4px 20px rgba(28, 47, 74, 0.35);
}

.timeline-node.dark::before {
    border-color: rgba(28, 47, 74, 0.2);
}

.timeline-item:hover .timeline-node {
    transform: scale(1.1);
    box-shadow: 0 6px 25px rgba(0, 96, 173, 0.45);
}

.node-number {
    color: var(--white);
    font-size: 22px;
    font-weight: 800;
}

/* 타임라인 콘텐츠 */
.timeline-content {
    background: var(--white);
    padding: 20px 15px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
}

.timeline-item:hover .timeline-content {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.timeline-content h4 {
    font-size: 17px;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 8px;
}

.timeline-content p {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.6;
}

/* 장비 섹션 */
.equipment-section {
    margin-top: 120px;
    padding-top: 60px;
}

.equipment-layout {
    display: flex;
    gap: 25px;
}

.equipment-left {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.equipment-text {
    padding: 10px 0;
}

.equipment-text h3 {
    font-size: 32px;
    font-weight: 700;
    line-height: 1.5;
    color: var(--secondary-color);
}

.equipment-text h3 .highlight {
    color: var(--primary-color);
}

.equipment-right {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.equipment-image {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.equipment-image img {
    width: 100%;
    height: auto;
    object-fit: cover;
    transition: var(--transition);
    display: block;
}

/* 왼쪽 이미지를 오른쪽 2개 중간에 위치시킴 */
.equipment-left .equipment-image {
    margin-top: auto;
    margin-bottom: auto;
}

.equipment-left .equipment-image img {
    height: auto;
}

.equipment-image:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

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

.equipment-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px 15px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.75));
    color: var(--white);
    font-size: 18px;
    line-height: 1.6;
    text-align: center;
    font-weight: 500;
}

/* 반응형 - 1024px */
@media (max-width: 1024px) {
    .timeline-track {
        width: 80%;
    }

    .timeline-item {
        max-width: 180px;
    }

    .equipment-layout {
        gap: 20px;
    }

    .equipment-text h3 {
        font-size: 28px;
    }

    .equipment-left .equipment-image {
        margin-top: 60px;
    }
}

/* 반응형 - 768px */
@media (max-width: 768px) {
    .process-timeline {
        flex-wrap: wrap;
        gap: 30px;
        padding-top: 0;
    }

    .timeline-track {
        display: none;
    }

    .timeline-item {
        flex: 0 0 calc(50% - 15px);
        max-width: none;
    }

    .timeline-node {
        width: 50px;
        height: 50px;
    }

    .timeline-node::before {
        width: 62px;
        height: 62px;
    }

    .node-number {
        font-size: 16px;
    }

    .timeline-content {
        padding: 15px 12px;
    }

    .timeline-content h4 {
        font-size: 15px;
    }

    .equipment-layout {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .equipment-left .equipment-image {
        margin-top: 0;
    }

    .equipment-text {
        text-align: center;
    }

    .equipment-image img,
    .equipment-left .equipment-image img {
        height: 220px;
    }

    .equipment-text h3 {
        font-size: 24px;
    }
}

/* ===== 시공범위 하이라이트 섹션 ===== */
.services-highlight {
    background: linear-gradient(180deg, var(--bg-light) 0%, var(--white) 100%);
}

.highlight-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

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

.highlight-circle {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto 25px;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.highlight-circle img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.highlight-item:hover .highlight-circle {
    transform: scale(1.05);
}

.highlight-item:hover .highlight-circle img {
    transform: scale(1.1);
}

.highlight-item h3 {
    font-size: 20px;
    font-weight: 700;
    line-height: 1.5;
}

.highlight-item .accent {
    color: var(--primary-color);
}

/* ===== 차별점 섹션 ===== */
.about {
    background: var(--white);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.about-card {
    background: var(--white);
    padding: 40px 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: left;
    transition: var(--transition);
}

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

.about-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.about-icon svg {
    width: 30px;
    height: 30px;
    color: var(--white);
}

.about-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--secondary-color);
}

.about-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
}

/* ===== AI 섹션 ===== */
.ai-section {
    background: var(--white);
    padding: 80px 0;
}

.ai-section .section-title {
    font-size: 32px;
    line-height: 1.5;
    margin-bottom: 50px;
}

.ai-video-container {
    max-width: 900px;
    margin: 0 auto;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.ai-image {
    width: 100%;
    display: block;
}

/* ===== 프로세스 섹션 ===== */
.process {
    background: linear-gradient(180deg, #e8f4fc 0%, #f5f9fc 100%);
    position: relative;
    overflow: hidden;
}

.process::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(0, 96, 173, 0.08) 0%, transparent 70%);
    border-radius: 50%;
}

.process::after {
    content: '';
    position: absolute;
    bottom: -50px;
    left: -50px;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(0, 144, 255, 0.06) 0%, transparent 70%);
    border-radius: 50%;
}

.process-timeline {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 40px;
    position: relative;
    padding-top: 40px;
    margin-top: 50px;
}

.timeline-track {
    position: absolute;
    top: 75px;
    left: 50%;
    transform: translateX(-50%);
    width: 70%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--accent-color) 50%, var(--secondary-color) 100%);
    border-radius: 2px;
    z-index: 0;
}

.timeline-item {
    flex: 1;
    max-width: 220px;
    text-align: center;
    position: relative;
    z-index: 1;
}

.timeline-node {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    box-shadow: 0 4px 20px rgba(0, 96, 173, 0.35);
    position: relative;
    transition: var(--transition);
}

.timeline-node::before {
    content: '';
    position: absolute;
    width: 90px;
    height: 90px;
    border: 2px solid rgba(0, 96, 173, 0.2);
    border-radius: 50%;
    animation: pulse-ring 2s ease-in-out infinite;
}

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

.timeline-node.dark {
    background: linear-gradient(135deg, var(--secondary-color) 0%, #455a64 100%);
    box-shadow: 0 4px 20px rgba(34, 34, 34, 0.35);
}

.timeline-node.dark::before {
    border-color: rgba(34, 34, 34, 0.2);
}

.timeline-item:hover .timeline-node {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(0, 96, 173, 0.45);
}

.node-number {
    color: var(--white);
    font-size: 24px;
    font-weight: 800;
}

.timeline-content {
    background: var(--white);
    padding: 25px 20px;
    border-radius: 15px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
}

.timeline-item:hover .timeline-content {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.timeline-content h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 10px;
}

.timeline-content p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
}

@media (max-width: 1024px) {
    .process-timeline {
        gap: 25px;
    }

    .timeline-track {
        width: 80%;
    }

    .timeline-item {
        max-width: 180px;
    }
}

@media (max-width: 768px) {
    .process-timeline {
        flex-direction: column;
        align-items: center;
        gap: 30px;
        padding-top: 0;
    }

    .timeline-track {
        display: none;
    }

    .timeline-item {
        max-width: 300px;
        width: 100%;
    }

    .timeline-node {
        width: 60px;
        height: 60px;
    }

    .timeline-node::before {
        width: 76px;
        height: 76px;
    }

    .node-number {
        font-size: 20px;
    }
}

/* ===== 실시간 작업 현황 섹션 ===== */
.realtime-status {
    background: linear-gradient(135deg, rgba(0, 96, 173, 0.05) 0%, rgba(0, 144, 255, 0.05) 100%);
    padding: 80px 0;
}

.status-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    align-items: center;
}

.status-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 15px;
}

.status-subtitle {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 10px;
}

.status-count {
    font-size: 56px;
    font-weight: 900;
    color: var(--primary-color);
}

.status-count .counter {
    font-family: 'Pretendard Variable', Pretendard, sans-serif;
}

.status-list {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.status-item {
    display: grid;
    grid-template-columns: 60px 1fr 80px 100px 80px;
    gap: 15px;
    padding: 20px 25px;
    align-items: center;
    border-bottom: 1px solid #eee;
    font-size: 14px;
}

.status-item:last-child {
    border-bottom: none;
}

.status-badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    text-align: center;
}

.status-badge.leak {
    background: #e3f2fd;
    color: var(--primary-color);
}

.status-badge.sewer {
    background: #e8f5e9;
    color: #2e7d32;
}

.status-location {
    color: var(--text-light);
}

.status-state {
    padding: 6px 12px;
    border-radius: 5px;
    font-size: 13px;
    font-weight: 600;
    text-align: center;
}

.status-state.dispatch {
    background: var(--primary-color);
    color: var(--white);
}

.status-state.complete {
    background: var(--secondary-color);
    color: var(--white);
}

/* ===== 시공 종류 섹션 ===== */
.services {
    background: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.services-grid-5 {
    grid-template-columns: repeat(5, 1fr);
}

.service-card.grayscale .service-image img {
    filter: grayscale(100%);
}

.service-card.grayscale:hover .service-image img {
    filter: grayscale(50%);
}

.service-card {
    text-align: center;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
}

.service-image {
    width: 100%;
    aspect-ratio: 1;
    border-radius: var(--border-radius);
    overflow: hidden;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.service-card:hover .service-image img {
    transform: scale(1.1);
}

.service-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--secondary-color);
}

.service-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
}

/* ===== 고객 후기 섹션 ===== */
.reviews {
    background: var(--bg-light);
    padding-bottom: 0;
}

.reviews-wrapper {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: center;
}

.reviews-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.review-card {
    display: flex;
    align-items: center;
    min-height: 160px;
    min-width: 500px;
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.review-card:hover {
    box-shadow: var(--shadow-lg);
}

.review-card:nth-child(2) {
    transform: translateX(40px);
}

.review-image {
    width: 180px;
    height: 135px;
    flex-shrink: 0;
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 12px;
}

.review-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.review-content {
    padding: 12px 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.review-author {
    font-size: 16px;
    color: var(--text-color);
    font-weight: 600;
}

.review-stars {
    color: #ffc107;
    font-size: 16px;
}

.review-content p {
    font-size: 13px;
    color: var(--text-color);
    line-height: 1.5;
    margin-bottom: 0;
}

.reviews-summary {
    text-align: center;
}

.reviews-summary h3 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 15px;
}

.highlight-number {
    color: var(--primary-color);
}

.summary-subtitle {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 10px;
}

.summary-rating {
    margin-bottom: 30px;
}

.summary-rating .stars {
    color: #ffc107;
    font-size: 28px;
}

.summary-slogan {
    font-size: 18px;
    color: var(--text-color);
    font-weight: 700;
    font-style: italic;
    margin-top: 20px;
}

.rating-number {
    display: block;
    font-size: 48px;
    font-weight: 900;
    color: var(--primary-color);
}

.btn-review {
    display: inline-block;
    padding: 15px 40px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 30px;
    font-weight: 600;
    transition: var(--transition);
}

.btn-review:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
}

/* ===== 젊은 기술, 확실한 신뢰 섹션 ===== */
.trust-section {
    background: var(--bg-dark);
    padding: 100px 0;
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.trust-card {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    aspect-ratio: 16/9;
}

.trust-image {
    width: 100%;
    height: 100%;
}

.trust-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.trust-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 30px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
}

.trust-overlay h3 {
    color: var(--white);
    font-size: 20px;
    font-weight: 500;
    line-height: 1.5;
}

.trust-overlay span {
    font-weight: 700;
}

/* ===== CTA 섹션 ===== */
.cta-section {
    background: linear-gradient(180deg, var(--bg-light) 77%, var(--primary-color) 77%);
    padding: 70px 0 0;
}

.cta-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: end;
    margin-top: 80px;
}

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

.cta-image img {
    max-height: 500px;
    object-fit: contain;
}

.cta-content {
    padding-bottom: 80px;
}

.cta-content h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 15px;
}

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

.cta-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 18px 35px;
    border-radius: 10px;
    font-size: 18px;
    font-weight: 600;
    transition: var(--transition);
}

.cta-btn svg {
    width: 24px;
    height: 24px;
}

.cta-btn.phone {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--white);
}

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

.cta-btn:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.cta-phone-banner {
    background: var(--primary-color);
    text-align: center;
    padding: 0 20px 20px;
    color: var(--white);
}

.cta-phone-banner p {
    font-size: 24px;
    font-weight: 500;
}

.phone-number {
    font-size: 36px;
    font-weight: 900;
    margin-left: 15px;
}

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

.footer-content {
    display: flex;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-logo img {
    height: 60px;
}

.footer-info p {
    font-size: 14px;
    margin-bottom: 8px;
    opacity: 0.8;
}

.footer-info strong {
    font-size: 18px;
    opacity: 1;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    opacity: 0.6;
}

/* ===== 플로팅 버튼 ===== */
.floating-buttons {
    position: fixed;
    right: 20px;
    bottom: 30%;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.floating-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 70px;
    padding: 15px 10px;
    border-radius: 10px;
    background: var(--white);
    box-shadow: var(--shadow);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.floating-btn:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.floating-btn svg {
    width: 24px;
    height: 24px;
    margin-bottom: 5px;
}

.btn-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-color);
}

.btn-number {
    font-size: 10px;
    font-weight: 700;
    color: var(--primary-color);
    text-align: center;
    line-height: 1.4;
}

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

.phone-btn svg {
    color: var(--primary-color);
}

.kakao-btn {
    background: var(--kakao-color);
}

.kakao-btn svg {
    color: #3c1e1e;
}

.kakao-btn .btn-label {
    color: #3c1e1e;
}

.top-btn {
    background: var(--white);
}

.top-btn svg {
    color: var(--text-light);
}

/* ===== 애니메이션 ===== */
[data-aos] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

[data-aos="fade-left"] {
    transform: translateX(30px);
}

[data-aos="fade-left"].aos-animate {
    transform: translateX(0);
}

[data-aos="fade-right"] {
    transform: translateX(-30px);
}

[data-aos="fade-right"].aos-animate {
    transform: translateX(0);
}

/* ===== 반응형 디자인 ===== */
@media (max-width: 1024px) {
    .hero-wrapper {
        padding-top: 20vh;
    }

    .hero-title {
        font-size: 38px;
    }

    .highlight-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .status-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .status-left {
        text-align: center;
    }

    .reviews-wrapper {
        grid-template-columns: 1fr;
    }

    .trust-grid {
        grid-template-columns: 1fr;
    }

    .cta-wrapper {
        grid-template-columns: 1fr;
        text-align: center;
    }

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

@media (max-width: 768px) {
    .header-inner {
        padding: 15px 20px;
    }

    .nav {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: var(--white);
        display: flex;
        align-items: center;
        justify-content: center;
        transform: translateX(-100%);
        transition: var(--transition);
    }

    .nav.active {
        transform: translateX(0);
    }

    .nav-list {
        flex-direction: column;
        text-align: center;
        gap: 30px;
    }

    .nav-list a {
        color: var(--secondary-color);
        font-size: 20px;
    }

    .mobile-menu-btn {
        display: flex;
        z-index: 1001;
    }

    .mobile-menu-btn.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-btn.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .hero-wrapper {
        padding: 22vh 20px 0;
    }

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

    .hero-desc {
        font-size: 15px;
        margin-bottom: 25px;
    }

    .hero-btn {
        padding: 14px 30px;
        font-size: 14px;
    }

    .hero-pagination {
        right: 20px;
    }

    .section-title-large {
        font-size: 32px;
    }

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

    .highlight-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .highlight-circle {
        width: 130px;
        height: 130px;
    }

    .about-grid {
        grid-template-columns: 1fr;
    }

    .process-flow {
        flex-direction: column;
        align-items: center;
    }

    .process-arrow {
        transform: rotate(90deg);
        padding: 0;
    }

    .status-item {
        grid-template-columns: 1fr;
        gap: 10px;
        text-align: center;
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .review-card {
        flex-direction: column;
    }

    .review-image {
        width: 100%;
        height: 200px;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .cta-btn {
        justify-content: center;
    }

    .footer-content {
        flex-direction: column;
        gap: 30px;
        text-align: center;
    }

    .floating-buttons {
        right: 10px;
    }

    .floating-btn {
        width: 60px;
        padding: 12px 8px;
    }

    .btn-number {
        font-size: 10px;
    }
}

@media (max-width: 480px) {
    .hero {
        min-height: 100vh;
    }

    .hero-wrapper {
        padding-top: 20vh;
    }

    .hero-title {
        font-size: 24px;
    }

    .hero-desc {
        font-size: 14px;
    }

    .hero-btn {
        padding: 12px 28px;
        font-size: 14px;
    }

    .hero-pagination {
        right: 15px;
        bottom: 30px;
    }

    .highlight-grid {
        grid-template-columns: 1fr 1fr;
    }

    .highlight-circle {
        width: 100px;
        height: 100px;
    }

    .highlight-item h3 {
        font-size: 16px;
    }

    .services-grid {
        grid-template-columns: 1fr 1fr;
        gap: 15px;
    }

    .service-card h3 {
        font-size: 16px;
    }

    .service-card p {
        font-size: 12px;
    }

    .status-count {
        font-size: 42px;
    }

    .phone-number {
        font-size: 28px;
        display: block;
        margin-left: 0;
        margin-top: 10px;
    }
}