/* =============================================
   VARIABLES & BASE
   ============================================= */
:root {
    --bg: #F1F5F9;
    --sub-bg: #1E3A8A;
    --point: #F59E0B;
    --secondary: #665733;
    --text: #333333;
    --white: #ffffff;
    --radius: 8px;
    --shadow: 0 4px 20px rgba(0,0,0,0.10);
    --transition: 0.3s ease;
    --mobile-pad: 24px;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
    font-family: 'Noto Sans KR', sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.7;
    overflow-x: hidden;
}

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

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

ul, ol { list-style: none; }

.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 40px;
}

.section-label {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--point);
    text-transform: uppercase;
    display: block;
    margin-bottom: 12px;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--sub-bg);
    line-height: 1.35;
    margin-bottom: 12px;
}

.section-sub {
    font-size: 1rem;
    color: #666;
    line-height: 1.7;
    margin-bottom: 48px;
}

/* fade-in animation via IntersectionObserver */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* =============================================
   HEADER
   ============================================= */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid rgba(30,58,138,0.08);
    transition: box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: 0 2px 20px rgba(0,0,0,0.10); }

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 40px;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.18rem;
    font-weight: 700;
    color: var(--sub-bg);
    flex-shrink: 0;
}
.site-logo svg { width: 38px; height: 38px; }
.logo-text span { color: var(--point); }

.header-right {
    display: flex;
    align-items: center;
    gap: 32px;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 28px;
}
.main-nav a {
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 5px;
    transition: color var(--transition);
}
.main-nav a:hover { color: var(--sub-bg); }
.main-nav a svg { width: 15px; height: 15px; opacity: 0.6; }

.header-cta-pc,
.header-cta-mobile {
    background: var(--sub-bg);
    color: var(--white);
    padding: 10px 20px;
    border-radius: var(--radius);
    font-size: 0.88rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    transition: background var(--transition), transform 0.2s;
    white-space: nowrap;
}
@media (max-width: 767px) {
    .header-cta-mobile {
        padding: 8px 12px;
        font-size: 0.78rem;
    }
}
.header-cta-pc:hover,
.header-cta-mobile:hover { background: #162f70; transform: translateY(-1px); }

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--sub-bg);
    border-radius: 2px;
    transition: all 0.3s ease;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 2px solid var(--sub-bg);
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.3s ease;
}
.mobile-menu.open {
    max-height: 300px;
    padding: 16px 0 20px;
}
.mobile-menu a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px var(--mobile-pad);
    font-size: 0.95rem;
    font-weight: 500;
    border-bottom: 1px solid #f0f0f0;
    transition: background var(--transition);
}
.mobile-menu a:last-child { border-bottom: none; }
.mobile-menu a:hover { background: #f8fafc; }
.mobile-menu a svg { width: 16px; height: 16px; color: var(--sub-bg); }

/* =============================================
   HERO
   ============================================= */
.hero {
    position: relative;
    min-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--sub-bg);
}
.hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}
.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(10,24,70,0.08) 0%,
        rgba(10,24,70,0.15) 50%,
        rgba(10,24,70,0.62) 100%
    );
}
.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 80px 40px 50px;
    max-width: 860px;
}
.hero h1 {
    font-size: clamp(2.2rem, 5vw, 3.6rem);
    font-weight: 800;
    color: var(--white);
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}
.hero-copy {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: rgba(255,255,255,0.88);
    line-height: 1.75;
    margin-bottom: 40px;
}
.hero-copy strong {
    color: var(--point);
    font-weight: 700;
}
.hero-badge {
    display: inline-flex;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 36px;
}
.hero-badge span {
    background: rgba(245,158,11,0.18);
    border: 1px solid rgba(245,158,11,0.5);
    color: #fde68a;
    padding: 5px 14px;
    border-radius: 20px;
    font-size: 0.82rem;
    font-weight: 600;
}
.cta-wrap { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--point);
    color: var(--white);
    padding: 16px 32px;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 700;
    transition: background var(--transition), transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 16px rgba(245,158,11,0.4);
}
.btn-primary:hover { background: #d97706; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(245,158,11,0.45); }
.btn-primary svg { width: 18px; height: 18px; }

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.12);
    border: 2px solid rgba(255,255,255,0.5);
    color: var(--white);
    padding: 16px 32px;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    transition: background var(--transition), border-color var(--transition);
}
.btn-secondary:hover { background: rgba(255,255,255,0.22); border-color: rgba(255,255,255,0.8); }

.hero-scroll {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    color: rgba(255,255,255,0.5);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    animation: scrollBounce 2s infinite;
}
.hero-scroll svg { width: 18px; height: 18px; }
@keyframes scrollBounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(6px); }
}

/* =============================================
   PAIN POINTS (Section 3)
   ============================================= */
.pain-points {
    padding: 80px 0;
    background: var(--white);
}
.pain-points .container { text-align: center; }
.pain-points .section-title { color: var(--sub-bg); }
.pain-title-em { display: inline; font-size: inherit; }
.mobile-br { display: none; }
.pain-points .section-sub {
    font-size: 1.12rem;
    font-weight: 600;
    color: #444;
}

.pain-slider-wrap {
    position: relative;
    max-width: 820px;
    margin: 0 auto;
    border-radius: 12px;
    overflow: hidden;
    aspect-ratio: 4/3;
    box-shadow: var(--shadow);
}

.pain-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 0.6s ease;
    display: flex;
    align-items: flex-end;
}
.pain-slide.active { opacity: 1; }

.pain-slide-img {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    transform: scale(1);
    transition: transform 0.6s ease, opacity 0.6s ease;
}

.pain-slide-text {
    position: relative;
    z-index: 2;
    width: 100%;
    padding: 24px 32px;
    background: linear-gradient(to top, rgba(0,0,0,0.82) 0%, rgba(0,0,0,0) 100%);
}
.pain-slide-text p {
    font-size: 1.28rem;
    font-weight: 700;
    color: var(--white);
    line-height: 1.4;
    transform: translateY(10px);
    opacity: 0;
    transition: transform 0.5s ease 0.2s, opacity 0.5s ease 0.2s;
}
.pain-slide.active .pain-slide-text p {
    transform: translateY(0);
    opacity: 1;
}

.pain-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}
.pain-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #ccd;
    border: none;
    cursor: pointer;
    transition: background var(--transition), transform var(--transition);
}
.pain-dot.active { background: var(--sub-bg); transform: scale(1.3); }

/* =============================================
   HIGHLIGHT (Section 4)
   ============================================= */
.highlight {
    position: relative;
    padding: 100px 0;
    text-align: center;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}
.highlight-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(10,24,70,0.84) 0%,
        rgba(30,58,138,0.75) 100%
    );
}
.highlight-content {
    position: relative;
    z-index: 2;
}
.highlight h2 {
    font-size: clamp(1.6rem, 3.5vw, 2.6rem);
    font-weight: 800;
    color: var(--white);
    line-height: 1.3;
    margin-bottom: 16px;
}
.highlight h2 .hl { color: var(--point); }
.highlight-sub {
    font-size: 1.05rem;
    color: rgba(255,255,255,0.82);
    line-height: 1.75;
    margin-bottom: 40px;
}
.highlight-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
    margin-top: 48px;
    padding-top: 40px;
    border-top: 1px solid rgba(255,255,255,0.15);
}
.stat-item { text-align: center; }
.stat-num {
    font-size: 2rem;
    font-weight: 800;
    color: var(--point);
    display: block;
    line-height: 1;
    margin-bottom: 6px;
}
.stat-label { font-size: 0.85rem; color: rgba(255,255,255,0.72); }

/* =============================================
   CASES (Section 5)
   ============================================= */
.cases {
    padding: 100px 0;
    background: var(--bg);
}
.cases .section-title { color: var(--sub-bg); text-align: center; }
.cases .section-sub { text-align: center; }
.cases-title-em { font-size: inherit; }

.cases-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.case-card {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    aspect-ratio: 4/3;
    box-shadow: var(--shadow);
    cursor: pointer;
}
.case-card-img {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    transition: transform 0.5s ease;
}
.case-card:hover .case-card-img { transform: scale(1.06); }

.case-card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(10,24,70,0.90) 0%, rgba(10,24,70,0.05) 50%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 28px 24px;
    transform: translateY(100%);
    transition: transform 0.4s ease;
}
.case-card:hover .case-card-overlay { transform: translateY(0); }

.case-area {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--point);
    letter-spacing: 0.06em;
    margin-bottom: 6px;
}
.case-review {
    font-size: 0.88rem;
    color: rgba(255,255,255,0.9);
    line-height: 1.55;
}

/* =============================================
   WHY US (Section 6)
   ============================================= */
.why-us {
    padding: 100px 0;
    background: var(--white);
}
.why-us .section-title { color: var(--sub-bg); }

.strength-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 56px;
}
.strength-card {
    background: var(--bg);
    border-radius: 12px;
    padding: 36px 28px;
    border-top: 4px solid var(--point);
    box-shadow: var(--shadow);
    transition: transform var(--transition), box-shadow var(--transition);
}
.strength-card:hover { transform: translateY(-4px); box-shadow: 0 12px 36px rgba(0,0,0,0.13); }

.strength-icon {
    width: 52px;
    height: 52px;
    background: var(--sub-bg);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}
.strength-icon svg { width: 26px; height: 26px; color: var(--point); }
.strength-card h3 { font-size: 1.08rem; font-weight: 700; color: var(--sub-bg); margin-bottom: 10px; }
.strength-card p { font-size: 0.88rem; color: #555; line-height: 1.65; }

.strength-dots {
    display: none;
    justify-content: center;
    gap: 8px;
    margin: 16px 0 40px;
}
.strength-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: #ccd;
    border: none;
    cursor: pointer;
    transition: background var(--transition);
}
.strength-dot.active { background: var(--sub-bg); }

.strength-text-list { display: flex; flex-direction: column; gap: 0; }
.strength-text-item {
    border-bottom: 1px solid #e8ecf0;
}
.strength-text-item:first-child { border-top: 1px solid #e8ecf0; }
.strength-text-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 0;
    cursor: pointer;
}
.strength-text-header h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--sub-bg);
    display: flex;
    align-items: center;
    gap: 10px;
}
.strength-text-header h3::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--point);
    flex-shrink: 0;
}
.toggle-icon {
    width: 20px;
    height: 20px;
    color: #888;
    transition: transform var(--transition);
    flex-shrink: 0;
}
.strength-text-item.open .toggle-icon { transform: rotate(180deg); }
.strength-text-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
}
.strength-text-body-inner {
    padding: 0 0 20px;
    font-size: 0.9rem;
    color: #555;
    line-height: 1.75;
}

/* PC에서는 body 항상 보임 */
@media (min-width: 768px) {
    .strength-text-body { max-height: none !important; overflow: visible; }
    .toggle-icon { display: none; }
    .strength-text-header { cursor: default; }
}

/* =============================================
   SERVICES (Section 7)
   ============================================= */
.services {
    padding: 100px 0;
    background: var(--bg);
}
.services .section-title { color: var(--sub-bg); }

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.service-item {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: box-shadow var(--transition);
}
.service-item:hover { box-shadow: 0 8px 32px rgba(0,0,0,0.14); }

.service-img {
    aspect-ratio: 4/3;
    overflow: hidden;
}
.service-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.service-item:hover .service-img img { transform: scale(1.05); }

.service-body { padding: 0; }
.service-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 20px;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: border-color var(--transition);
}
.service-item.open .service-header { border-color: var(--point); }
.service-header h3 { font-size: 0.98rem; font-weight: 700; color: var(--sub-bg); }
.chevron {
    width: 18px;
    height: 18px;
    color: #888;
    transition: transform var(--transition);
    flex-shrink: 0;
}
.service-item.open .chevron { transform: rotate(180deg); }

.service-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
}
.service-content-inner {
    padding: 4px 20px 20px;
}
.service-content-inner ul { display: flex; flex-direction: column; gap: 8px; }
.service-content-inner li {
    font-size: 0.86rem;
    color: #555;
    padding-left: 16px;
    position: relative;
    line-height: 1.5;
}
.service-content-inner li::before {
    content: '·';
    position: absolute;
    left: 0;
    color: var(--point);
    font-weight: 700;
}

/* =============================================
   FAQ (Section 8)
   ============================================= */
.faq {
    padding: 100px 0;
    background: var(--white);
}
.faq .section-title { color: var(--sub-bg); }

.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item {
    border-bottom: 1px solid #e4e8ef;
}
.faq-item:first-child { border-top: 1px solid #e4e8ef; }
.faq-question {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 22px 0;
    cursor: pointer;
    font-size: 0.97rem;
    font-weight: 600;
    color: var(--text);
    transition: color var(--transition);
}
.faq-question:hover { color: var(--sub-bg); }
.faq-q-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 26px;
    width: 26px;
    height: 26px;
    min-width: 26px;
    max-width: 26px;
    border-radius: 50%;
    background: var(--sub-bg);
    color: var(--white);
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0;
}
.faq-question > span:not(.faq-q-icon) {
    flex: 1;
    text-align: left;
}
.faq-chevron {
    width: 18px;
    height: 18px;
    color: #999;
    transition: transform var(--transition);
    flex: 0 0 18px;
}
.faq-item.open .faq-chevron { transform: rotate(180deg); }
.faq-item.open .faq-question { color: var(--sub-bg); }

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
}
.faq-answer-inner {
    padding: 0 0 22px 40px;
    font-size: 0.9rem;
    color: #555;
    line-height: 1.78;
}

/* =============================================
   CTA SECTION (Section 9)
   ============================================= */
.cta-section {
    padding: 100px 0;
    background: var(--sub-bg);
    text-align: center;
}
.cta-section .section-title { color: var(--white); }
.cta-section .section-sub { color: rgba(255,255,255,0.78); margin-bottom: 40px; }

.cta-phone-display {
    font-size: 2rem;
    font-weight: 800;
    color: var(--point);
    margin-bottom: 32px;
    letter-spacing: 0.04em;
}

.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.cta-pc-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--point);
    color: var(--white);
    padding: 18px 40px;
    border-radius: var(--radius);
    font-size: 1.05rem;
    font-weight: 700;
    box-shadow: 0 4px 20px rgba(245,158,11,0.4);
    transition: background var(--transition), transform 0.2s;
}
.cta-pc-btn:hover { background: #d97706; transform: translateY(-2px); }
.cta-pc-btn svg { width: 20px; height: 20px; }

.cta-mobile-tel {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--point);
    color: var(--white);
    padding: 18px 36px;
    border-radius: var(--radius);
    font-size: 1.05rem;
    font-weight: 700;
    box-shadow: 0 4px 20px rgba(245,158,11,0.4);
    transition: background var(--transition), transform 0.2s;
}
.cta-mobile-tel:hover { background: #d97706; transform: translateY(-2px); }
.cta-mobile-sms {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255,255,255,0.12);
    border: 2px solid rgba(255,255,255,0.5);
    color: var(--white);
    padding: 18px 36px;
    border-radius: var(--radius);
    font-size: 1.05rem;
    font-weight: 700;
    transition: background var(--transition);
}
.cta-mobile-sms:hover { background: rgba(255,255,255,0.22); }
.cta-mobile-tel svg, .cta-mobile-sms svg { width: 20px; height: 20px; }

/* PC/Mobile CTA switching */
.cta-mobile-sms { display: none !important; }
@media (min-width: 768px) {
    .cta-mobile-tel { display: none !important; }
    .header-cta-mobile { display: none !important; }
}
@media (max-width: 767px) {
    .cta-pc-btn { display: none !important; }
    .header-cta-pc { display: none !important; }
}

/* =============================================
   FOOTER (Section 10)
   ============================================= */
.site-footer {
    background: #111827;
    color: rgba(255,255,255,0.65);
    padding: 48px 0 32px;
}
.footer-inner {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 40px;
}
.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 40px;
    padding-bottom: 32px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    flex-wrap: wrap;
}
.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 12px;
}
.footer-logo svg { width: 32px; height: 32px; }
.footer-info { font-size: 0.83rem; line-height: 1.9; }
.footer-info strong { color: rgba(255,255,255,0.85); }

.footer-nav { display: flex; gap: 28px; }
.footer-nav a {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    color: rgba(255,255,255,0.6);
    transition: color var(--transition);
}
.footer-nav a:hover { color: var(--point); }
.footer-nav a svg { width: 20px; height: 20px; }

.footer-bottom {
    padding-top: 24px;
    text-align: center;
    font-size: 0.78rem;
    color: rgba(255,255,255,0.35);
}

/* =============================================
   CASE DETAIL PAGES
   ============================================= */
.case-page {
    padding-top: 68px;
}
.case-hero {
    background: var(--sub-bg);
    padding: 60px 0;
    text-align: center;
}
.case-hero h1 {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 800;
    color: var(--white);
    line-height: 1.25;
    margin-bottom: 14px;
}
.case-hero p {
    font-size: 1.02rem;
    color: rgba(255,255,255,0.8);
    line-height: 1.7;
}
.case-hero .case-area-tag {
    display: inline-block;
    background: var(--point);
    color: var(--white);
    font-size: 0.78rem;
    font-weight: 700;
    padding: 5px 14px;
    border-radius: 20px;
    margin-bottom: 20px;
}

.case-duo {
    padding: 72px 0;
    background: var(--bg);
}
.duo-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    max-width: 960px;
    margin: 0 auto;
}
.duo-img {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    aspect-ratio: 3/4;
}
.duo-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.duo-img.flip img { transform: scaleX(-1); }

.case-body { padding: 72px 0; background: var(--white); }
.case-body-inner { max-width: 820px; margin: 0 auto; }

.case-section-title {
    font-size: 1.45rem;
    font-weight: 700;
    color: var(--sub-bg);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--point);
}
.case-text {
    font-size: 0.94rem;
    line-height: 1.85;
    color: #444;
    margin-bottom: 32px;
}
.case-points {
    background: var(--bg);
    border-radius: 10px;
    padding: 24px 28px;
    margin-bottom: 32px;
}
.case-points li {
    font-size: 0.92rem;
    color: #444;
    padding: 8px 0 8px 20px;
    position: relative;
    border-bottom: 1px solid #e8ecf0;
    line-height: 1.6;
}
.case-points li:last-child { border-bottom: none; }
.case-points li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--point);
}

.case-faq { padding: 72px 0; background: var(--bg); }
.case-faq .section-title { font-size: 1.6rem; margin-bottom: 32px; }

.case-cta { padding: 72px 0; background: var(--sub-bg); text-align: center; }
.case-cta h2 { font-size: 1.6rem; font-weight: 800; color: var(--white); margin-bottom: 12px; }
.case-cta p { color: rgba(255,255,255,0.78); margin-bottom: 32px; }

/* =============================================
   CONTACT PAGE
   ============================================= */
.contact-page { padding-top: 68px; }
.contact-hero {
    background: var(--sub-bg);
    padding: 60px 0 50px;
    text-align: center;
}
.contact-hero h1 {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 12px;
}
.contact-hero p { color: rgba(255,255,255,0.78); font-size: 1rem; }

.contact-body { padding: 72px 0; }
.contact-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 56px;
}
.contact-card {
    background: var(--white);
    border-radius: 12px;
    padding: 36px 28px;
    text-align: center;
    box-shadow: var(--shadow);
    border-top: 4px solid var(--sub-bg);
}
.contact-card svg { width: 40px; height: 40px; color: var(--sub-bg); margin: 0 auto 16px; }
.contact-card h3 { font-size: 1rem; font-weight: 700; color: var(--sub-bg); margin-bottom: 10px; }
.contact-card p { font-size: 0.88rem; color: #555; line-height: 1.7; }
.contact-phone {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--point);
    display: block;
    margin: 8px 0;
    letter-spacing: 0.03em;
}

.contact-notice {
    background: #f0f4ff;
    border-left: 4px solid var(--sub-bg);
    border-radius: 0 8px 8px 0;
    padding: 20px 24px;
    font-size: 0.88rem;
    color: #444;
    line-height: 1.75;
    margin-top: 24px;
}

/* =============================================
   SITEMAP PAGE
   ============================================= */
.sitemap-page { padding-top: 68px; }
.sitemap-hero {
    background: var(--sub-bg);
    padding: 60px 0 50px;
    text-align: center;
}
.sitemap-hero h1 { font-size: 2.2rem; font-weight: 800; color: var(--white); }

.sitemap-body { padding: 72px 0; }
.sitemap-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.sitemap-group h2 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--sub-bg);
    padding-bottom: 12px;
    border-bottom: 2px solid var(--point);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.sitemap-group h2 svg { width: 16px; height: 16px; }
.sitemap-group ul li { margin-bottom: 10px; }
.sitemap-group ul li a {
    font-size: 0.9rem;
    color: #444;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: color var(--transition);
}
.sitemap-group ul li a:hover { color: var(--sub-bg); }
.sitemap-group ul li a::before {
    content: '›';
    color: var(--point);
    font-weight: 700;
}

/* CASES PAGE */
.cases-page { padding-top: 68px; }
.cases-page-hero {
    background: var(--sub-bg);
    padding: 60px 0 50px;
    text-align: center;
}
.cases-page-hero h1 {
    font-size: 2rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 12px;
}
.cases-page-hero p { color: rgba(255,255,255,0.78); }

.cases-page-body { padding: 72px 0; }
.cases-page-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}
.cases-page-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform var(--transition), box-shadow var(--transition);
    display: block;
}
.cases-page-card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.14); }
.cases-page-card-img {
    aspect-ratio: 16/9;
    overflow: hidden;
}
.cases-page-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.cases-page-card:hover .cases-page-card-img img { transform: scale(1.05); }
.cases-page-card-body { padding: 24px; }
.cases-page-card-body h2 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--sub-bg);
    margin-bottom: 10px;
}
.cases-page-card-body p { font-size: 0.88rem; color: #555; line-height: 1.65; }
.cases-page-card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 16px;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--sub-bg);
}
.cases-page-card-link svg { width: 14px; height: 14px; }

/* =============================================
   RESPONSIVE — MOBILE
   ============================================= */
@media (max-width: 767px) {
    .container { padding: 0 var(--mobile-pad); }
    .section-title { font-size: 1.45rem; }
    .section-sub { margin-bottom: 32px; }

    /* Header */
    .header-inner { padding: 0 var(--mobile-pad); }
    .main-nav, .header-cta-pc { display: none; }
    .hamburger { display: flex; }
    .mobile-menu { display: block; }

    /* Hero */
    .hero-content { padding: 70px var(--mobile-pad) 40px; }
    .hero { min-height: 75vh; }
    .hero h1 { font-size: 2rem; }
    .hero-badge { display: grid; grid-template-columns: repeat(2, auto); justify-content: center; gap: 10px; }
    .hero-badge span { font-size: 0.76rem; padding: 4px 10px; text-align: center; }

    /* Pain points */
    .pain-points { padding: 60px 0; }
    .pain-slider-wrap { border-radius: 8px; }
    .pain-slide-text p { font-size: 1.05rem; }
    .pain-slide-text { padding: 16px var(--mobile-pad); }
    .mobile-br { display: inline; }
    .pain-title-em { display: block; font-size: 1.2em; line-height: 1.2; margin-bottom: 0.15em; }
    .cases-title-em { font-size: 1.18em; }
    .cases .section-title { line-height: 1.5; margin-bottom: 10px; }
    .cases .section-sub { margin-bottom: 28px; }

    /* Highlight */
    .highlight { padding: 140px 0 72px; background-attachment: scroll; }
    .highlight h2 { font-size: 1.6rem; }
    .highlight-overlay { background: linear-gradient(to bottom, rgba(10,24,70,0.08) 0%, rgba(10,24,70,0.55) 55%, rgba(10,24,70,0.82) 100%); }
    .highlight-stats { gap: 28px; }

    /* Cases */
    .cases { padding: 72px 0; }
    .cases-grid { grid-template-columns: 1fr; gap: 16px; }
    .case-card-overlay { transform: translateY(0); }

    /* Why us */
    .why-us { padding: 72px 0; }
    .why-us .section-title { font-size: 1.2rem; }
    .strength-cards {
        display: flex;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        gap: 16px;
        padding: 4px 0 12px;
        scrollbar-width: none;
        -ms-overflow-style: none;
    }
    .strength-cards::-webkit-scrollbar { display: none; }
    .strength-card {
        flex: 0 0 calc(100% - 8px);
        scroll-snap-align: start;
        margin: 0;
    }
    .strength-dots { display: flex; }

    /* Services */
    .services { padding: 72px 0; }
    .services-grid { grid-template-columns: 1fr; }

    /* FAQ */
    .faq { padding: 72px 0; }

    /* CTA */
    .cta-section { padding: 72px 0; }
    .cta-phone-display { display: none; }
    .cta-buttons { flex-direction: column; align-items: center; }

    /* Footer */
    .footer-inner { padding: 0 var(--mobile-pad); }
    .footer-top { flex-direction: column; gap: 28px; }
    .footer-nav { flex-wrap: wrap; gap: 20px; }

    /* Case detail pages */
    .case-hero { padding: 50px 0; }
    .case-duo { padding: 48px 0; }
    .duo-grid { grid-template-columns: 1fr; }
    .duo-img { aspect-ratio: 3/2; }
    .case-body, .case-faq, .case-cta { padding: 48px 0; }

    /* Contact */
    .contact-body { padding: 48px 0; }
    .contact-cards { grid-template-columns: 1fr; }

    /* Sitemap */
    .sitemap-body { padding: 48px 0; }
    .sitemap-grid { grid-template-columns: 1fr; gap: 24px; }

    /* Cases page */
    .cases-page-body { padding: 48px 0; }
    .cases-page-grid { grid-template-columns: 1fr; }
}