@charset "UTF-8";

/* ===== Sub Page Layout ===== */

/* Page Hero Banner */
.page-hero {
    min-height: 220px;
    height: auto;
    padding: calc(var(--header-height) + 40px) 0 40px;
    background: #fff;
    display: flex;
    align-items: center;
    color: var(--color-dark);
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid #e8edf4;
}
.page-hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, var(--color-primary), #50c8ff);
}
.page-hero::after {
    content: '';
    position: absolute;
    right: 0; top: 0;
    width: 40%;
    height: 100%;
    background: linear-gradient(to left, #f0f5ff, transparent);
    pointer-events: none;
}
.page-hero-content {
    position: relative;
    z-index: 1;
    max-width: var(--max-width);
    width: 100%;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 48px;
}
.page-hero-left {
    flex-shrink: 0;
    width: 280px;
    text-align: center;
    border-right: 2px solid #e8edf4;
    padding-right: 48px;
}
.page-hero-label {
    font-size: 30px;
    font-weight: 700;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: -0.01em;
    line-height: 1;
    white-space: nowrap;
}
.page-hero-right {
    flex: 1;
}
.page-hero-title {
    font-size: 26px;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.35;
    margin-bottom: 10px;
    word-break: keep-all;
    color: var(--color-dark);
}
.page-hero-title-sub {
    font-size: 17px;
    font-weight: 400;
    display: block;
    margin-bottom: 2px;
    color: var(--color-text-light);
    line-height: 1.2;
}
.page-hero-desc {
    font-size: 16px;
    color: var(--color-text-muted);
    line-height: 1.8;
    word-break: keep-all;
}

/* Sub Content Area */
.sub-content {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 40px 80px;
}

/* ===== Shared Pintel-style Hero (used by all sub pages) ===== */
.pv-hero {
    position: relative;
    width: 100vw;
    margin-left: calc(50% - 50vw);
    height: 100vh;
    min-height: 640px;
    background: #06142e;
}
.pv-hero-bg { position: absolute; inset: 0; z-index: 0; overflow: hidden; }
.pv-hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 1;
    will-change: opacity;
    animation: pvHeroFadeIn 1.2s cubic-bezier(0.22, 1, 0.36, 1) both;
}
@keyframes pvHeroFadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}
.pv-hero-inner {
    position: relative;
    z-index: 2;
    max-width: 1600px;
    height: 100%;
    margin: 0 auto;
    padding: 0 80px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: #fff;
}
.pv-hero-title {
    font-size: clamp(52px, 8vw, 120px);
    font-weight: 600;
    letter-spacing: -0.03em;
    line-height: 1;
    margin: 0 0 20px;
    font-family: 'Jost', var(--font-primary);
}
.pv-hero-sub {
    font-size: clamp(15px, 1.4vw, 20px);
    font-weight: 400;
    margin: 0;
    opacity: 0.8;
    letter-spacing: 0.02em;
}

/* Hero bottom nav (breadcrumb + pills) */
.pv-hero-nav {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 3;
    padding: 32px 80px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    border-top: 1px solid rgba(255,255,255,0.12);
}
.pv-hero-breadcrumb {
    display: flex;
    align-items: center;
    gap: 10px;
    color: rgba(255,255,255,0.75);
    font-size: 14px;
}
.pv-hero-breadcrumb i { font-size: 16px; }
.pv-hero-breadcrumb .sep { opacity: 0.5; }
.pv-hero-pills { display: flex; gap: 12px; }
.pv-hero-pill {
    position: relative;
    min-width: 200px;
    padding: 14px 20px;
    background: transparent;
    border: 1px solid rgba(255,255,255,0.35);
    border-radius: 100px;
    color: #fff;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    transition: background 0.25s, border-color 0.25s;
}
.pv-hero-pill:hover { background: rgba(255,255,255,0.12); }
.pv-hero-pill.primary { background: var(--color-primary); border-color: var(--color-primary); }
.pv-hero-pill.primary:hover { background: #0d5db0; }
.pv-hero-pill-menu {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 0;
    right: 0;
    background: #fff;
    color: var(--color-dark);
    border-radius: 12px;
    box-shadow: 0 -8px 30px rgba(0,0,0,0.18);
    padding: 8px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
    z-index: 10;
}
.pv-hero-pill.open .pv-hero-pill-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.pv-hero-pill-menu a {
    display: block;
    padding: 10px 18px;
    font-size: 14px;
    color: var(--color-text);
    cursor: pointer;
}
.pv-hero-pill-menu a:hover { background: #f4f8fd; color: var(--color-primary); }
.pv-hero-pill-menu a.active { color: var(--color-primary); font-weight: 700; }

/* Full-hero mode: hide the old sol-tab-bar for pages adopting pv-hero */
body.sub-page .sol-header-wrap.about-hero-mode { display: none; }
body.sub-page.about-hero-mode .sub-content { padding-top: 0; }
body.sub-page.about-hero-mode #mainContent { padding-top: 0; }

/* Transparent header while hero is in viewport */
body.sub-page.on-about-hero #header {
    background: transparent !important;
    box-shadow: none !important;
}
body.sub-page.on-about-hero .gnb-menu > li > a { color: rgba(255,255,255,0.9); text-shadow: 0 1px 4px rgba(0,0,0,0.3); }
body.sub-page.on-about-hero .gnb-menu > li > a:hover,
body.sub-page.on-about-hero .gnb-menu > li.active > a,
body.sub-page.on-about-hero .gnb-menu > li.current > a { color: #fff; }
body.sub-page.on-about-hero .header-logo .logo-dark { display: none; }
body.sub-page.on-about-hero .header-logo .logo-light { display: block; }
body.sub-page.on-about-hero .header-lang-btn { color: rgba(255,255,255,0.7); }
body.sub-page.on-about-hero .header-lang-btn.active { color: #fff; }
body.sub-page.on-about-hero .header-lang-sep { color: rgba(255,255,255,0.25); }
/* 햄버거 아이콘 흰색 */
body.sub-page.on-about-hero .header-menu-btn span { background: #fff; }
body.sub-page.on-about-hero #header.mobile-open .header-menu-btn span { background: #fff; }
/* 모바일 패널 — 다크 테마 (≤768px 모바일 전용) */
@media (max-width: 768px) {
    body.sub-page.on-about-hero .header-inner nav { background: rgba(8,12,24,0.97) !important; }
    body.sub-page.on-about-hero .gnb-menu > li { border-bottom-color: rgba(255,255,255,0.12) !important; }
}

/* ===== Sticky sub-tab bar (appears when hero scrolls out of view) ===== */
.pv-sticky-tabs {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    height: 56px;
    z-index: 90;
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition:
        transform 0.45s cubic-bezier(0.22, 1, 0.36, 1),
        opacity 0.3s ease,
        visibility 0s linear 0.3s,
        top 0.35s ease;
}
.pv-sticky-tabs.visible {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    transition:
        transform 0.45s cubic-bezier(0.22, 1, 0.36, 1),
        opacity 0.3s ease,
        visibility 0s linear 0s,
        top 0.35s ease;
}
/* Scroll-down (body.header-hidden): hide sticky together with main header */
body.header-hidden .pv-sticky-tabs.visible {
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition:
        transform 0.35s ease,
        opacity 0.25s ease,
        visibility 0s linear 0.35s;
}

.pv-sticky-tabs-inner {
    max-width: 1400px;
    height: 100%;
    margin: 0 auto;
    padding: 0 80px;
    display: flex;
    align-items: center;
    gap: 40px;
    overflow-x: auto;
    scrollbar-width: none;
}
.pv-sticky-tabs-inner::-webkit-scrollbar { display: none; }
.pv-sticky-tabs a {
    position: relative;
    font-size: 15px;
    font-weight: 600;
    color: rgba(0, 0, 0, 0.55);
    text-decoration: none;
    padding: 18px 0;
    cursor: pointer;
    letter-spacing: -0.01em;
    white-space: nowrap;
    transition: color 0.25s ease;
}
.pv-sticky-tabs a::after {
    content: '';
    position: absolute;
    left: 0; bottom: 0;
    width: 100%;
    height: 2px;
    background: #000;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}
.pv-sticky-tabs a:hover { color: #000; }
.pv-sticky-tabs a:hover::after,
.pv-sticky-tabs a.active::after { transform: scaleX(1); }
.pv-sticky-tabs a.active { color: #000; }

@media (max-width: 768px) {
    .pv-sticky-tabs { height: 48px; }
    .pv-sticky-tabs-inner { padding: 0 20px; gap: 24px; }
    .pv-sticky-tabs a { font-size: 14px; padding: 15px 0; }
}

@media (max-width: 768px) {
    .pv-hero { min-height: 480px; height: 70vh; }
    .pv-hero-inner { padding-left: 20px; padding-right: 20px; }
    .pv-hero-nav { padding: 24px 20px; flex-direction: column; align-items: stretch; gap: 16px; }
    .pv-hero-pill { min-width: 0; }
    .pv-hero-pills { flex-wrap: wrap; gap: 8px; }
    .pv-hero-pills .pv-hero-pill:nth-child(3) { flex-basis: 100%; }
}

/* ===== Solutions Sub Page ===== */

/* Sol Header (Title + Tab bar) */
.sol-header-wrap {
    padding-top: calc(var(--header-height) + 54px);
    background: #fff;
}
.sol-tab-bar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    padding: 8px 0;
    background: #f4f8fd;
    border-bottom: 1px solid #e2ebf6;
    z-index: 100;
    transition: top 0.35s ease, transform 0.35s ease;
}
/* When header is hidden, move tab-bar up to top */
body.header-hidden .sol-tab-bar { top: 0; }

/* ===== Sub-subtab bar (separate row below main tab bar) ===== */
.sol-subtab-bar {
    position: fixed;
    top: calc(var(--header-height) + 54px);
    left: 0;
    right: 0;
    padding: 6px 0;
    background: #eaf1fa;
    border-bottom: 1px solid #d3e0ef;
    z-index: 99;
    transition: top 0.35s ease;
}
/* Pages with a sub-subtab bar need extra content top padding */
.sol-header-wrap.has-subtab-bar { padding-top: calc(var(--header-height) + 54px + 46px); }

/* When header is hidden AND page has a sub-subtab bar:
   main tab-bar slides up entirely, sub-subtab-bar moves to top */
body.header-hidden .sol-header-wrap.has-subtab-bar .sol-tab-bar {
    top: 0;
    transform: translateY(-100%);
}
body.header-hidden .sol-subtab-bar { top: 0; }
.sol-tab-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.sol-brand-title { display: none; }
.tab-download-btn {
    margin-left: auto;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px 14px;
    font-size: 15px;
    font-weight: 600;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
    border-radius: 20px;
    white-space: nowrap;
    text-decoration: none;
    transition: all 0.2s;
}
.tab-download-btn:hover {
    background: var(--color-primary);
    color: #fff;
}
.tab-download-btn i { font-size: 16px; }
.sol-tab-nav {
    margin: 0;
    padding: 0;
    display: flex;
    list-style: none;
    gap: 6px;
}
.sol-tab-nav li a {
    display: block;
    padding: 8px 18px;
    font-size: 17px;
    font-weight: 700;
    color: var(--color-text-light);
    white-space: nowrap;
    border-radius: 6px;
    transition: background var(--transition), color var(--transition);
}
.sol-tab-nav li a:hover {
    color: var(--color-dark);
    background: #d6e4f3;
}
.sol-tab-nav li.active a {
    background: var(--color-primary);
    color: #fff;
}

/* Sub-tab nav (inline 2nd level, solutions page) - attached to 사업분야 */
.sol-subtab-nav {
    margin-left: -6px;
    gap: 2px;
    padding: 1px 10px 1px 16px;
    background: #cddff3;
    border-radius: 0 16px 16px 0;
    align-self: center;
}
/* When inside the standalone sub-subtab bar, reset attach-to-tab styling */
.sol-subtab-bar .sol-subtab-nav {
    margin-left: 0;
    padding: 0;
    background: transparent;
    border-radius: 0;
    align-self: auto;
    gap: 4px;
    display: flex;
    flex-wrap: wrap;
}
.sol-subtab-bar .sol-subtab-nav li a { padding: 4px 10px; }
.sol-subtab-nav li a {
    font-size: 16px;
    font-weight: 600;
    padding: 4px 8px;
    color: var(--color-text);
    background: transparent;
    border: 0;
    transition: color var(--transition);
}
.sol-subtab-nav li a:hover {
    background: transparent;
    color: var(--color-dark);
}
.sol-subtab-nav li.active a {
    background: transparent;
    color: var(--color-primary);
    font-weight: 700;
}
.sol-subtab-nav li a::before {
    content: '';
    display: inline-block;
    width: 5px;
    height: 5px;
    margin-right: 6px;
    margin-bottom: 2px;
    background: transparent;
    border-radius: 50%;
    vertical-align: middle;
}
.sol-subtab-nav li.active a::before {
    background: var(--color-primary);
}

/* Sol Tagline */
.sol-tagline {
    font-size: 26px;
    font-weight: 700;
    color: var(--color-primary);
    text-align: center;
    padding: 36px 0;
    word-break: keep-all;
    line-height: 1.5;
}
/* 카피라이트 바로 다음 요소의 상단 여백 제거 (중복 간격 방지) */
.sol-tagline + * { margin-top: 0 !important; }
.sol-tagline + .cert-section { border-top: none; padding-top: 0; margin-top: 0 !important; }
.sol-tagline + .sol-ba-outer { margin-top: 0 !important; }
.sol-tagline + .insight-list > .insight-item:first-child { padding-top: 0; }
.sol-tagline em {
    font-style: normal;
}

/* Problem / Solution Grid */
/* Diagram layout: 좌 문제 / 중 이미지 / 우 해결 */
.sol-diag {
    display: grid;
    grid-template-columns: 1fr 1px 1fr;
    gap: 40px;
    margin: 30px 0 50px;
    align-items: stretch;
}
.sol-diag-divider {
    width: 1px;
    background: linear-gradient(180deg, transparent 0%, rgba(120,180,255,0.4) 20%, rgba(120,180,255,0.4) 80%, transparent 100%);
}
.sol-diag-col { display: flex; flex-direction: column; gap: 10px; }
.sol-diag-head {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 16px;
    border-radius: 20px;
    font-size: 16px;
    font-weight: 700;
    width: fit-content;
    margin-bottom: 4px;
}
.sol-diag-col.right .sol-diag-head { align-self: flex-end; }
.sol-diag-head.problem { background: #fdecec; color: #b54040; }
.sol-diag-head.solution { background: #e8f1fb; color: #1c6aa8; }
.sol-diag-item {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 10px 14px;
    flex: 1;
    transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}
.sol-diag-col.left .sol-diag-item:hover { border-color: #f0c5c5; transform: translateX(-3px); box-shadow: 0 6px 16px rgba(0,0,0,0.05); }
.sol-diag-col.right .sol-diag-item { text-align: right; }
.sol-diag-col.right .sol-diag-item:hover { border-color: #c5dbf0; transform: translateX(3px); box-shadow: 0 6px 16px rgba(0,0,0,0.05); }
.sol-diag-item .t { font-size: 16px; font-weight: 700; color: var(--color-dark); margin: 0 0 3px; }
.sol-diag-item .d { font-size: 15px; color: var(--color-text-light); line-height: 1.5; margin: 0; }
.sol-diag-hub {
    position: relative;
    border-radius: 18px;
    background: linear-gradient(160deg, #1a2a4a 0%, #0c1530 100%);
    box-shadow: 0 16px 40px rgba(15,24,48,0.22);
    min-height: 380px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 18px;
    padding: 30px;
    overflow: hidden;
}
.sol-diag-hub::before {
    content: '';
    position: absolute;
    top: -40%;
    right: -40%;
    width: 240px;
    height: 240px;
    background: radial-gradient(circle, rgba(80,170,255,0.22) 0%, transparent 70%);
    pointer-events: none;
}
.sol-diag-hub-icon {
    width: 110px;
    height: 110px;
    border-radius: 50%;
    background: rgba(80,170,255,0.12);
    border: 1px solid rgba(120,200,255,0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #8ed5ff;
    font-size: 56px;
    box-shadow: 0 0 40px rgba(80,170,255,0.18);
}
.sol-diag-hub-title {
    color: #fff;
    font-size: 24px;
    font-weight: 700;
    text-align: center;
    line-height: 1.25;
}
.sol-diag-hub-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
}
.sol-diag-hub-tags span {
    font-size: 15px;
    font-weight: 600;
    color: rgba(180,220,255,0.9);
    background: rgba(120,200,255,0.12);
    border: 1px solid rgba(120,200,255,0.25);
    padding: 4px 12px;
    border-radius: 20px;
}
@media (max-width: 1024px) {
    .sol-diag { grid-template-columns: 1fr; }
    .sol-diag-center { min-height: 240px; order: -1; }
    .sol-diag-col.right .sol-diag-item { text-align: left; }
    .sol-diag-col.right .sol-diag-head { align-self: flex-start; }
}

/* Outer wrapper: BA rows + value strip side by side */
.sol-ba-outer {
    display: flex;
    gap: 20px;
    margin: 18px 0 50px;
    align-items: stretch;
}
.sol-ba-outer > .sol-ba-wrap { flex: 1; margin: 0; min-width: 0; }
.sol-ba-outer > .sol-value-strip { padding-top: 32px; }

/* Value strip: 3 vertical red cards on right */
.sol-value-strip {
    flex-shrink: 0;
    width: 260px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.sol-value-item {
    flex: 1;
    background: #f3f8fe;
    border: 1px solid #d4e4f4;
    border-radius: 10px;
    padding: 10px 12px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
}
.sol-value-badge {
    display: inline-block;
    font-size: 15px;
    font-weight: 500;
    color: #fff;
    background: var(--color-primary);
    border: none;
    padding: 3px 12px;
    border-radius: 20px;
    white-space: nowrap;
}
.sol-value-item p {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.5;
    margin: 0;
    word-break: keep-all;
}
@media (max-width: 1024px) {
    .sol-ba-outer { flex-direction: column; }
    .sol-value-strip { width: 100%; flex-direction: row; flex-wrap: wrap; }
    .sol-value-item { flex: 1 1 0; min-width: 0; }
    .sol-value-badge { white-space: normal; line-height: 1.35; }
}
@media (max-width: 640px) {
    .sol-value-strip { flex-direction: column; }
    .sol-value-item { flex: 1 1 auto; }
}

/* Before / After row layout */
.sol-ba-wrap {
    margin: 30px 0 50px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    position: relative;
}
.sol-ba-wrap.with-side-labels { padding-top: 32px; }
.sol-ba-side-label {
    position: absolute;
    top: 0;
    font-size: 15px;
    font-weight: 800;
    text-transform: uppercase;
    opacity: 0.55;
}
.sol-ba-side-label.left {
    left: 0;
    color: var(--color-dark);
}
.sol-ba-side-label.right {
    left: calc(50% + 30px);
    color: #154d7a;
}
.sol-ba-head {
    display: grid;
    grid-template-columns: 1fr 60px 1fr;
    gap: 0;
    margin-bottom: 4px;
}
.sol-ba-head-problem,
.sol-ba-head-solution {
    font-size: 16px;
    font-weight: 800;
    padding: 8px 18px;
    border-radius: 6px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    width: fit-content;
}
.sol-ba-head-problem { color: var(--color-dark); background: #eef0f3; }
.sol-ba-head-solution { color: #154d7a; background: #e8f1fb; justify-self: start; grid-column: 3; }
.sol-ba-row {
    display: grid;
    grid-template-columns: 1fr 60px 1fr;
    align-items: stretch;
    gap: 0;
}
.sol-ba-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 8px 16px;
    border-radius: 10px;
    border: 1px solid var(--color-border);
    background: #fff;
    transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}
.sol-ba-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.05);
}
.sol-ba-card.problem { background: linear-gradient(90deg, #f5f6f8 0%, #fff 40%); }
.sol-ba-card.problem:hover { border-color: #d0d4da; }
.sol-ba-card.solution { background: linear-gradient(90deg, #f3f8fe 0%, #fff 40%); }
.sol-ba-card.solution:hover { border-color: #c5dbf0; }
.sol-ba-icon {
    flex-shrink: 0;
    width: 38px;
    height: 38px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}
.sol-ba-card.problem .sol-ba-icon { background: #eef0f3; color: #000; }
.sol-ba-card.solution .sol-ba-icon { background: #e8f1fb; color: #1c6aa8; }
.sol-ba-text { flex: 1; min-width: 0; }
.sol-ba-title { font-size: 16px; font-weight: 700; color: var(--color-dark); margin: 0 0 2px; }
.sol-ba-desc { font-size: 15px; color: var(--color-text-light); line-height: 1.5; margin: 0; }
.sol-ba-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
}
.ba-flow-svg { width: 60px; height: 20px; overflow: visible; display: block; }
/* 마칭 앤트 점선 */
.ba-dash { animation: baDashFlow 0.8s linear infinite; }
@keyframes baDashFlow { to { stroke-dashoffset: -8; } }
/* 이동 점 */
.ba-dot { opacity: 0; fill: #fff; stroke: #3d87f5; stroke-width: 1.5; animation: baDotMove 2s linear infinite; }
@keyframes baDotMove {
    0%        { transform: translateX(0);    opacity: 0; }
    8%        { opacity: 1; }
    75%       { opacity: 1; }
    90%, 100% { transform: translateX(48px); opacity: 0; }
}
/* 화살촉 펄스 */
.ba-head { animation: baHeadPulse 2s ease-in-out infinite; }
@keyframes baHeadPulse {
    0%, 100% { opacity: 0.6; }
    50%      { opacity: 1; }
}
/* vertical arrow variant for mobile */
.ba-flow-svg-v { display: none; width: 20px; height: 60px; overflow: visible; }
.ba-dot-v { opacity: 0; fill: #fff; stroke: #3d87f5; stroke-width: 1.5; animation: baDotMoveV 2s linear infinite; }
@keyframes baDotMoveV {
    0%        { transform: translateY(0);    opacity: 0; }
    8%        { opacity: 1; }
    75%       { opacity: 1; }
    90%, 100% { transform: translateY(48px); opacity: 0; }
}
@media (max-width: 720px) {
    .biz-arrow-center { transform: none; padding: 8px 0; }
    .ba-flow-svg { display: none; }
    .ba-flow-svg-v { display: block; }
}
@media (prefers-reduced-motion: reduce) {
    .ba-dash, .ba-dot, .ba-dot-v, .ba-head { animation: none; }
    .ba-dot { opacity: 1; transform: translateX(24px); }
    .ba-dot-v { opacity: 1; transform: translateY(24px); }
}
@media (max-width: 768px) {
    .sol-ba-head { display: none; }
    .sol-ba-side-label { display: none; }
    .sol-ba-wrap.with-side-labels { padding-top: 0; padding-left: 0; }
    .sol-ba-row { grid-template-columns: 1fr; gap: 8px; }
    .sol-ba-arrow { transform: rotate(90deg); padding: 4px 0; }
    .sol-ba-card { position: relative; padding-top: 28px; }
    .sol-ba-card::before {
        position: absolute;
        top: 8px;
        left: 12px;
        font-size: 13px;
        font-weight: 800;
        letter-spacing: 0.08em;
        padding: 2px 8px;
        border-radius: 4px;
    }
    .sol-ba-card.problem::before { content: 'PROBLEM'; color: var(--color-dark); background: #eef0f3; }
    .sol-ba-card.solution::before { content: 'SOLUTION'; color: #154d7a; background: #e8f1fb; }
}

.sol-ps-wrap {
    display: flex;
    align-items: flex-start;
    gap: 0;
    margin: 28px 0 48px;
}
.sol-problem, .sol-solution {
    flex: 1;
}
.sol-ps-label {
    font-size: 17px;
    font-weight: 700;
    color: #e03030;
    display: flex;
    align-items: center;
    gap: 7px;
    margin-bottom: 12px;
}
.sol-ps-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}
.sol-ps-card {
    background: #f5f7fa;
    border-radius: 6px;
    padding: 14px 16px;
}
.sol-solution .sol-ps-card {
    background: #eef3ff;
}
.sol-ps-card-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 6px;
}
.sol-ps-card-desc {
    font-size: 15px;
    color: var(--color-text-light);
    line-height: 1.6;
    word-break: keep-all;
}
.sol-ps-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    flex-shrink: 0;
    font-size: 24px;
    color: #bbb;
    padding-top: 38px;
}

/* Sol Lineup */
.sol-lineup-title {
    font-size: 16px;
    font-weight: 800;
    letter-spacing: 0.05em;
    color: var(--color-primary);
    padding: 8px 16px;
    margin-top: 32px;
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    background: linear-gradient(90deg, rgba(0,100,200,0.08) 0%, transparent 60%);
    border-left: 3px solid var(--color-primary);
    border-radius: 0;
}
.sol-lineup-grid {
    display: flex;
    flex-direction: column;
    gap: 0;
}

/* Sol Platform */
.sol-platform {
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding: 28px 0;
    border-bottom: 1px solid #e8edf2;
}
.sol-platform:first-child {
    padding-top: 10px;
}
.sol-platform:last-child {
    border-bottom: none;
}
.sol-platform-header {
    margin: 0;
    padding-left: 40px;
    display: flex;
    align-items: baseline;
    gap: 14px;
    flex-wrap: wrap;
}
.sol-platform-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 0;
    word-break: keep-all;
}
.sol-platform-quote {
    font-size: 16px;
    color: var(--color-primary);
    font-weight: 600;
    margin: 0;
    display: block;
    word-break: keep-all;
}

/* Sol Image Carousel */
.sol-img-carousel {
    position: relative;
    padding: 0 40px;
}
.sol-carousel-viewport {
    overflow: hidden;
    width: 100%;
}
.sol-carousel-track {
    display: flex;
    gap: 12px;
    transition: transform 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}
.sol-carousel-slide {
    flex-shrink: 0;
}
.sol-carousel-slide img {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
    border-radius: 8px;
    display: block;
}
.sol-carousel-slide p {
    font-size: 15px;
    text-align: center;
    margin-top: 6px;
    color: var(--color-text-light);
}
.sol-video-thumb {
    position: relative;
    width: 100%;
    aspect-ratio: 16/9;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    background-color: #f0f2f5;
    background-size: 130%;
    background-position: center;
    background-repeat: no-repeat;
    transition: background-size 0.3s;
}
.sol-video-thumb:hover { background-size: 135%; }
.sol-video-play {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 60px; height: 60px;
    background: rgba(0,0,0,0.65);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 24px;
    pointer-events: none;
    transition: transform 0.25s, background 0.25s;
}
.sol-video-thumb:hover .sol-video-play {
    transform: translate(-50%, -50%) scale(1.1);
    background: rgba(0, 0, 0, 0.85);
}
/* 동영상 모달 */
.yt-modal { position: fixed; inset: 0; z-index: 9000; display: flex; align-items: center; justify-content: center; }
.yt-modal-overlay { position: absolute; inset: 0; background: rgba(0,0,0,0.8); }
.yt-modal-box { position: relative; width: 92%; max-width: 1200px; z-index: 1; }
.yt-modal-close { position: absolute; top: -40px; right: 0; background: none; border: none; color: #fff; font-size: 30px; cursor: pointer; line-height: 1; }
.yt-modal-frame { position: relative; padding-top: 56.25%; background: #000; border-radius: 8px; overflow: hidden; }
.yt-modal-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: none; }
.sol-carousel-btn {
    position: absolute;
    top: 40%;
    width: 30px;
    height: 30px;
    border: 1px solid #d0d5dd;
    border-radius: 50%;
    background: #fff;
    color: var(--color-text-light);
    font-size: 15px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    z-index: 2;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
    transform: translateY(-50%);
    padding: 0;
}
.sol-carousel-btn:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}
.sol-carousel-btn.prev { left: 4px; }
.sol-carousel-btn.next { right: 4px; }
.sol-carousel-dots { display: none; }

/* Sol Detail List */
.sol-detail-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
    background: #f8f9fb;
    border-radius: 8px;
    padding: 20px 24px;
}
.sol-detail-list li {
    font-size: 16px;
    color: var(--color-text);
    line-height: 1.7;
    padding-left: 14px;
    position: relative;
}
.sol-detail-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}
.sol-detail-list li strong {
    color: var(--color-primary);
}
.sol-detail-list li.meta strong {
    color: var(--color-text);
}

.solutions-tab-nav {
    display: flex;
    border-bottom: 2px solid var(--color-border);
    margin-bottom: 48px;
    position: sticky;
    top: var(--header-height);
    background: #fff;
    z-index: 50;
    padding-top: 16px;
    gap: 0;
}
.solutions-tab-nav li {
    text-align: center;
}
.solutions-tab-nav li a {
    display: block;
    padding: 12px 20px;
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text-muted);
    white-space: nowrap;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    transition: all var(--transition);
}
.solutions-tab-nav li a:hover { color: var(--color-dark); }
.solutions-tab-nav li.active a {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

/* Solutions Detail */
.solution-detail { margin-bottom: 80px; }
.solution-detail-header { margin-bottom: 40px; }
.solution-detail-title {
    font-size: 30px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 16px;
}
.solution-video-section { margin-bottom: 40px; }
.solution-video-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.solution-video-card {
    border-radius: 8px;
    overflow: hidden;
    position: relative;
    cursor: pointer;
}
.solution-video-card img {
    width: 100%;
    aspect-ratio: 16/10;
    object-fit: cover;
}
.solution-video-card .play-icon {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,0.3);
    opacity: 0;
    transition: opacity var(--transition);
}
.solution-video-card:hover .play-icon { opacity: 1; }
.solution-video-card .play-icon i {
    color: #fff;
    font-size: 38px;
}
.solution-video-card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-dark);
    margin-top: 8px;
}

/* Problem & Solution Grid */
.problem-solution-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-top: 40px;
}
.ps-column h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--color-border);
}
.ps-column h3.solution-h3 { border-bottom-color: var(--color-primary); }
.ps-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.ps-card {
    background: var(--color-bg-light);
    border-radius: 8px;
    padding: 20px;
    border-left: 3px solid var(--color-border);
}
.ps-card.solution-card-alt {
    border-left-color: var(--color-primary);
    background: rgba(25, 118, 210, 0.03);
}
.ps-card-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 6px;
}
.ps-card-desc {
    font-size: 16px;
    color: var(--color-text-light);
    line-height: 1.5;
}

/* Expected Effects */
.effects-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin: 40px 0;
}
.effect-card {
    text-align: center;
    padding: 32px 20px;
    background: var(--color-bg-light);
    border-radius: 12px;
}
.effect-number {
    font-size: 38px;
    font-weight: 900;
    color: var(--color-primary);
}
.effect-label {
    font-size: 16px;
    color: var(--color-text-light);
    margin-top: 8px;
}

/* Applied Products */
.product-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 40px;
}
.product-card {
    display: flex;
    gap: 20px;
    padding: 24px;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    transition: all var(--transition);
}
.product-card:hover {
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}
.product-card-img {
    width: 100px;
    height: 100px;
    border-radius: 8px;
    object-fit: cover;
    flex-shrink: 0;
}
.product-card-info { flex: 1; }
.product-card-name {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 4px;
}
.product-card-tag {
    font-size: 15px;
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: 8px;
}
.product-card-desc {
    font-size: 16px;
    color: var(--color-text-light);
    line-height: 1.5;
}

/* ===== References Sub Page ===== */
.ref-stats-row {
    display: flex;
    justify-content: center;
    gap: 80px;
    margin: 40px 0 60px;
}
.ref-stat { text-align: center; }
.ref-stat .number {
    font-size: 38px;
    font-weight: 900;
    color: var(--color-dark);
}
.ref-stat .number .unit {
    font-size: 22px;
    font-weight: 700;
    vertical-align: middle;
}
.ref-stat .label {
    font-size: 16px;
    color: var(--color-text-muted);
    margin-top: 6px;
}

.ref-tab-nav {
    display: flex;
    border-bottom: 2px solid var(--color-border);
    margin-bottom: 40px;
    position: sticky;
    top: var(--header-height);
    background: #fff;
    z-index: 50;
}
.ref-tab-btn {
    padding: 12px 20px;
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text-muted);
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}
.ref-tab-btn:hover { color: var(--color-dark); }
.ref-tab-btn.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

/* Achievement Card Grid */
.achievement-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-top: 40px;
}
.achievement-section {
    background: #fff;
    border: 1px solid #e4eaf2;
    border-radius: 16px;
    padding: 28px 28px 24px;
    display: flex;
    flex-direction: column;
    box-shadow: 0 2px 12px rgba(0,0,0,0.04);
    transition: box-shadow 0.2s, transform 0.2s;
}
.achievement-section:hover {
    box-shadow: 0 6px 24px rgba(25, 118, 210, 0.1);
    transform: translateY(-2px);
}
.achievement-category {
    font-size: 16px;
    font-weight: 800;
    letter-spacing: 0.05em;
    color: var(--color-primary);
    padding: 8px 16px;
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    background: linear-gradient(90deg, rgba(0,100,200,0.08) 0%, transparent 60%);
    border-left: 3px solid var(--color-primary);
    border-radius: 0;
    align-self: stretch;
}
.achievement-list {
    flex: 1;
    margin-bottom: 0;
}
.achievement-list li {
    padding: 7px 0 7px 16px;
    font-size: 15.5px;
    color: var(--color-text);
    line-height: 1.6;
    position: relative;
    border-bottom: 1px solid #f2f4f8;
}
.achievement-list li:last-child { border-bottom: none; }
.achievement-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--color-primary);
}
.achievement-keywords {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-top: 18px;
    padding-top: 16px;
    border-top: 1px solid #eef1f6;
}
.achievement-keywords .keyword {
    font-size: 15px;
    color: var(--color-primary);
    background: rgba(25, 118, 210, 0.08);
    padding: 4px 10px;
    border-radius: 20px;
    font-weight: 600;
}

/* Client Logo Grid */
.client-two-col {
    display: flex;
    flex-direction: column;
    gap: 36px;
    margin-top: 0;
}
.client-section { margin-top: 0; }
.client-category-title {
    margin-bottom: 20px;
}
.client-cat-badge {
    display: flex;
    align-items: center;
    font-size: 16px;
    font-weight: 800;
    letter-spacing: 0.05em;
    color: var(--color-primary);
    padding: 8px 16px;
    background: linear-gradient(90deg, rgba(0,100,200,0.08) 0%, transparent 60%);
    border-left: 3px solid var(--color-primary);
    border-radius: 0;
}
.client-cat-badge.alt { /* 동일 스타일 유지 (Solutions Portfolio 배너 디자인) */ }
.client-logo-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
    margin-bottom: 0;
}
.client-logo-item {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    min-width: 0;
    overflow: hidden;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    background: #fff;
    min-height: 80px;
}
.client-logo-item img {
    max-height: 50px;
    max-width: 100%;
    width: auto;
    object-fit: contain;
}
.client-logo-item.compact img {
    max-height: 32px;
    max-width: 70%;
}
.client-logo-item.text-only {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text);
    text-align: center;
    line-height: 1.5;
}
.client-logo-item.country {
    gap: 8px;
}
.client-logo-item.country img {
    max-height: 30px;
    max-width: 45px;
    border-radius: 2px;
    box-shadow: 0 0 2px rgba(0,0,0,.15);
}
.client-logo-item.country span {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text);
}

/* Product Cards 3-col grid */
.prod-cards-grid {
    display: flex;
    flex-direction: column;
    gap: 40px;
    margin: 40px 0;
}
.prod-card {
    background: #fff;
    border: none;
    border-radius: 0;
    padding: 0;
}
.prod-card:first-child {
    padding-top: 0;
}
.prod-card:last-child {
    border-bottom: 1px solid var(--color-border);
}
.prod-card-header {
    margin-bottom: 20px;
}
.prod-card-body {
    display: flex;
    gap: 28px;
    margin-bottom: 10px;
    align-items: flex-start;
}
.prod-card-img {
    flex-shrink: 0;
    width: 380px;
    align-self: flex-start;
    background: #1a2340;
    overflow: hidden;
    border-radius: 8px;
}
.prod-card-img img {
    width: 100%;
    height: auto;
    display: block;
}
.prod-card-body .prod-feature-grid {
    flex: 1;
    min-width: 0;
}
.prod-card-badge {
    display: flex;
    align-items: center;
    font-size: 16px;
    font-weight: 800;
    letter-spacing: 0.05em;
    color: var(--color-primary);
    background: linear-gradient(90deg, rgba(0,100,200,0.08) 0%, transparent 60%);
    border-left: 3px solid var(--color-primary);
    padding: 8px 16px;
    border-radius: 0;
    margin-bottom: 12px;
    align-self: stretch;
    letter-spacing: 1px;
    text-transform: uppercase;
}
.prod-card-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-dark);
    margin: 0 0 10px;
    letter-spacing: -0.01em;
}
.prod-card-desc {
    font-size: 19px;
    font-weight: 600;
    color: var(--color-primary);
    line-height: 1.6;
    margin: 0 0 20px;
}
.prod-feature-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}
.prod-feature-item {
    padding: 16px 20px;
    border-radius: 10px;
    background: var(--feat-bg, #eff6ff);
    word-break: keep-all;
    overflow-wrap: break-word;
}
.prod-feature-item strong {
    display: block;
    font-size: 16.5px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 6px;
    letter-spacing: -0.01em;
}
.prod-feature-item p {
    font-size: 15.5px;
    color: var(--color-text);
    line-height: 1.65;
    margin: 0;
}
.prod-feature-item.blue,
.prod-feature-item.green,
.prod-feature-item.orange,
.prod-feature-item.purple {
    --feat-bg: #f5f8fc;
}
.prod-card-list {
    list-style: none;
    padding: 16px 20px;
    margin: 0;
    background: #f5f8fc;
    border-radius: 8px;
}
.prod-card-list li {
    font-size: 15.5px;
    color: var(--color-text);
    line-height: 1.65;
    padding: 4px 0 4px 10px;
    position: relative;
}
.prod-card-list li::before {
    content: '·';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}
.prod-card-list li strong {
    color: var(--color-dark);
    font-weight: 700;
}
.sol-tagline-sub {
    font-size: 16px;
    color: var(--color-text-light);
    text-align: left;
    margin-top: 10px;
    line-height: 1.6;
}
@media (max-width: 1024px) {
    .prod-card-body { flex-direction: column; }
    .prod-card-img { width: 100%; }
}

/* ===== Core Tech: Differentiation Cards ===== */
.ct-diff-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
    margin: 32px 0 24px;
}
.ct-diff-card {
    background: #fff;
    border: 1px solid #e4eaf2;
    border-radius: 14px;
    padding: 24px 22px;
    text-align: center;
    box-shadow: 0 2px 12px rgba(0,0,0,0.04);
    transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}
.ct-diff-card:hover {
    box-shadow: 0 8px 24px rgba(25, 118, 210, 0.12);
    border-color: rgba(25, 118, 210, 0.25);
    transform: translateY(-2px);
}
.ct-diff-title {
    font-size: 18px;
    font-weight: 800;
    color: var(--color-dark);
    margin: 0 0 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid #eef1f6;
    letter-spacing: -0.01em;
}
.ct-diff-desc {
    font-size: 15.5px;
    line-height: 1.6;
    color: var(--color-text-light);
    margin: 0;
    word-break: keep-all;
}

@media (max-width: 1024px) {
    .ct-diff-row { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
    .ct-diff-row { grid-template-columns: 1fr; }
}

/* ===== Core Tech: Framework Flow (Minimal White) ===== */
.ct-framework-wrap { margin: 32px 0 60px; }
.ct-framework-highlight {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 8px;
    padding: 18px 24px;
    margin-bottom: 28px;
    background: linear-gradient(135deg, rgba(25, 118, 210, 0.06) 0%, rgba(25, 118, 210, 0.02) 100%);
    border: 1px solid rgba(25, 118, 210, 0.14);
    border-radius: 12px;
    color: var(--color-text);
    font-size: 17px;
    text-align: center;
    line-height: 1.6;
}
.ct-framework-highlight strong {
    color: var(--color-primary);
    font-weight: 800;
    letter-spacing: -0.01em;
}
.ct-framework-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding: 4px 2px 8px;
}
/* One big left-to-right arrow containing 4 phases
   Phase widths align with card columns below:
   p1: card 1 ~ card 2 midpoint   (0 → 24.58%)
   p2: card 2 midpoint ~ card 3   (24.58 → 49.17%)
   [gap: card 3 / card 4 between them = 1.67%]
   p3: card 4 ~ card 5 midpoint   (50.83 → 75.42%)
   p4: card 5 midpoint ~ card 6   (75.42 → 100%) */
.ctf-arrow {
    position: relative;
    width: 100%;
    height: 50px;
    margin-bottom: 18px;
    background: linear-gradient(90deg,
        #f5f8fc 0%,
        rgba(25, 118, 210, 0.35) 100%);
    clip-path: polygon(0 0, calc(100% - 28px) 0, 100% 50%, calc(100% - 28px) 100%, 0 100%);
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
}
/* Divider between p2(분석) and p3(시각화) */
.ctf-arrow::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 22%;
    bottom: 22%;
    width: 1px;
    background: rgba(0,0,0,0.12);
    transform: translateX(-0.5px);
    z-index: 1;
}
.ctf-phase {
    position: absolute;
    top: 0;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-dark);
    font-weight: 800;
    font-size: 16.5px;
    letter-spacing: 0.02em;
}
.ctf-phase.p1 { left: 0;        width: 24.58%; }
.ctf-phase.p2 { left: 24.58%;   width: 24.58%; }
.ctf-phase.p3 { left: 50.83%;   width: 24.58%; }
.ctf-phase.p4 { left: 75.42%;   width: 24.58%; padding-right: 28px; }
/* Chevron-like dividers inside a group (between p1/p2 and between p3/p4) */
.ctf-phase.p1::after,
.ctf-phase.p3::after {
    content: '';
    position: absolute;
    right: 0;
    top: 22%;
    bottom: 22%;
    width: 1px;
    background: rgba(0,0,0,0.12);
}
.ct-framework-flow {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 14px;
}
.ctf-step {
    background: var(--ctf-row-bg, #f5f8fc);
    border-radius: 0;
    padding: 18px 8px 14px;
    position: relative;
    display: flex;
    flex-direction: column;
    border-top: 3px solid var(--ctf-accent, var(--color-primary));
    box-shadow: 0 2px 10px rgba(0,0,0,0.03);
}
/* Arrow between steps (centered in 14px gap, darker) */
.ctf-step:not(:last-child)::after {
    content: '';
    position: absolute;
    right: -10px;
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
    width: 6px;
    height: 6px;
    border-top: 2px solid rgba(0,0,0,0.45);
    border-right: 2px solid rgba(0,0,0,0.45);
    z-index: 1;
}
.ctf-step-head { margin-bottom: 14px; text-align: center; }
.ctf-step-num {
    display: inline-block;
    font-size: 14px;
    font-weight: 900;
    letter-spacing: 0.12em;
    color: var(--ctf-accent, var(--color-primary));
    margin-bottom: 4px;
}
.ctf-step-name {
    font-size: 15.5px;
    font-weight: 800;
    color: var(--color-dark);
    margin: 0;
    letter-spacing: -0.02em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.3;
}
.ctf-step-pills {
    list-style: none;
    padding: 0;
    margin: 0 0 14px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
}
.ctf-step-pills li {
    background: #fff;
    border-radius: 20px;
    padding: 8px 6px;
    font-size: 14px;
    text-align: center;
    color: var(--color-dark);
    box-shadow: 0 1px 2px rgba(0,0,0,0.04);
    line-height: 1.35;
    word-break: keep-all;
}
.ctf-step-ip {
    display: flex;
    justify-content: center;
    gap: 18px;
    padding-top: 12px;
    border-top: 1px dashed rgba(0,0,0,0.08);
    position: relative;
}
.ctf-step-ip span {
    display: flex;
    flex-direction: column;
    align-items: center;
    line-height: 1;
}
.ctf-step-ip em {
    font-size: 12.5px;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
    margin-bottom: 6px;
    font-style: normal;
}
.ctf-step-ip b {
    font-size: 24px;
    font-weight: 900;
    color: var(--ctf-accent, var(--color-primary));
    letter-spacing: -0.02em;
}
.ctf-step-ip b::after {
    content: '건';
    margin-left: 2px;
    font-size: 13px;
    font-weight: 700;
    opacity: 0.7;
    vertical-align: 3px;
}
.ctf-ip-shared::before {
    content: attr(data-share-label);
    position: absolute;
    top: -8px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.1em;
    color: var(--ctf-accent, var(--color-primary));
    background: var(--ctf-row-bg, #fff);
    padding: 0 6px;
}

/* Unified neutral accent — subtle background with single primary accent */
.ctf-r1, .ctf-r2, .ctf-r3, .ctf-r4, .ctf-r5, .ctf-r6 {
    --ctf-accent: var(--color-primary);
    --ctf-row-bg: #f5f8fc;
}

@media (max-width: 1024px) {
    .ct-framework-highlight { font-size: 16px; padding: 16px 22px; }
}
@media (max-width: 768px) {
    /* Stack cards vertically on mobile for readability */
    .ct-framework-scroll { overflow-x: visible; padding: 4px 0; }
    .ctf-arrow { display: none; }
    .ct-framework-flow { grid-template-columns: 1fr; gap: 22px; }
    .ctf-step { padding: 16px 18px 14px; }
    .ctf-step-head { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; text-align: left; }
    .ctf-step-num { margin-bottom: 0; }
    .ctf-step-name {
        font-size: 16px;
        white-space: normal;
        overflow: visible;
        text-overflow: clip;
        text-align: left;
    }
    .ctf-step-pills { flex-direction: row; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
    .ctf-step-pills li { font-size: 14px; padding: 6px 10px; flex: 1 1 auto; }
    .ctf-step-ip b { font-size: 22px; }
    .ctf-step::before { font-size: 62px; }
    /* Rotate inter-card chevron to point down */
    .ctf-step:not(:last-child)::after {
        right: 50%;
        top: auto;
        bottom: -15px;
        transform: translateX(50%) rotate(135deg);
    }
    /* Shared-IP label needs opaque bg on mobile since step bg shows through */
    .ctf-ip-shared::before { background: #fff; }
}

/* ===== Core Tech Sub Page ===== */
.coretech-stats-row {
    display: flex;
    justify-content: center;
    gap: 80px;
    margin: 40px 0 60px;
}
.ct-tab-nav {
    display: flex;
    border-bottom: 2px solid var(--color-border);
    margin-bottom: 50px;
    position: sticky;
    top: var(--header-height);
    background: #fff;
    z-index: 50;
}
.ct-tab-btn {
    padding: 12px 20px;
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text-muted);
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}
.ct-tab-btn:hover { color: var(--color-dark); }
.ct-tab-btn.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

/* CoreTech Category Cards (also used in sub page) */
.coretech-card {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 32px 24px;
    text-align: left;
    transition: all var(--transition);
}
.coretech-card:hover {
    border-color: var(--color-primary);
    box-shadow: 0 8px 24px rgba(25, 118, 210, 0.1);
}
.coretech-card-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: linear-gradient(135deg, #1565c0, #50c8ff);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}
.coretech-card-icon i { color: #fff; font-size: 24px; }
.coretech-card-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 12px;
}
.coretech-card-list {
    font-size: 16px;
    color: var(--color-text-light);
    line-height: 1.8;
}
.coretech-card-list li::before {
    content: '·';
    margin-right: 6px;
    color: var(--color-primary);
    font-weight: bold;
}

/* Product Detail - PDF 19p Layout */
.ct-product-section {
    margin-bottom: 0;
    border: 1px solid var(--color-border);
    border-radius: 0;
    padding: 32px;
    background: #fff;
}
.ct-product-section + .ct-product-section {
    border-top: none;
}

/* Product Layout: Left image + Right content */
.ct-product-layout {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 32px;
}
.ct-product-left {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}
.ct-product-badge {
    display: inline-block;
    font-size: 16px;
    font-weight: 700;
    color: var(--color-primary);
    background: rgba(25, 118, 210, 0.06);
    padding: 4px 12px;
    border-radius: 4px;
    margin-bottom: 16px;
}
.ct-product-box-img {
    width: 180px;
}
.ct-product-box-img img {
    width: 100%;
    height: auto;
    border-radius: 4px;
}
.ct-product-right { flex: 1; }
.ct-product-name {
    font-size: 26px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 4px;
}
.ct-product-subtitle {
    font-size: 16px;
    color: var(--color-text-light);
    margin-bottom: 0;
}
.ct-product-divider {
    height: 1px;
    background: var(--color-border);
    margin: 16px 0;
}
.ct-product-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}
.ct-feature-title {
    font-size: 17px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 12px;
    padding-bottom: 0;
    border-bottom: none;
}
.ct-feature-list li {
    padding: 4px 0 4px 16px;
    font-size: 16px;
    color: var(--color-text);
    line-height: 1.7;
    position: relative;
}
.ct-feature-list li::before {
    content: '·';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

/* Media Row: 3 screenshots + 1 video */
.ct-media-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr) 1fr;
    gap: 12px;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--color-border);
}
.ct-screenshot-placeholder {
    aspect-ratio: 16/10;
    background: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    color: var(--color-text-muted);
    text-align: center;
    line-height: 1.5;
}
.ct-video-thumb {
    position: relative;
    border-radius: 4px;
    overflow: hidden;
    cursor: pointer;
    aspect-ratio: 16/10;
}
.ct-video-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.ct-video-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,0.35);
    transition: background var(--transition);
}
.ct-video-thumb:hover .ct-video-overlay {
    background: rgba(0,0,0,0.5);
}
.ct-video-overlay i {
    color: #fff;
    font-size: 34px;
}
.ct-video-label {
    position: absolute;
    bottom: 8px;
    right: 10px;
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    background: rgba(0,0,0,0.5);
    padding: 3px 8px;
    border-radius: 3px;
}

/* Patent Section */
.patent-list { margin-top: 40px; }
.patent-item {
    display: flex;
    gap: 32px;
    padding: 32px;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    margin-bottom: 24px;
    align-items: flex-start;
}
.patent-img {
    width: 180px;
    flex-shrink: 0;
}
.patent-img img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    border: 1px solid var(--color-border);
}
.patent-info { flex: 1; }
.patent-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 12px;
}
.patent-number {
    font-size: 16px;
    color: var(--color-text-muted);
    font-weight: 600;
    margin-bottom: 16px;
}
.patent-desc {
    font-size: 16px;
    color: var(--color-text);
    line-height: 1.8;
}

/* ===== About Sub Page ===== */
.about-overview { margin-bottom: 60px; }
.about-overview-text {
    font-size: 18px;
    color: var(--color-text);
    line-height: 2;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

/* History Timeline */
.history-timeline { margin: 60px 0; }
.history-year {
    display: flex;
    gap: 40px;
    padding: 20px 0;
    border-bottom: 1px solid var(--color-border);
}
.history-year-label {
    font-size: 26px;
    font-weight: 900;
    color: var(--color-primary);
    min-width: 100px;
}
.history-events { flex: 1; }
.history-events li {
    padding: 4px 0;
    font-size: 16px;
    color: var(--color-text);
}

/* CI Section */
.ci-section { margin: 60px 0; }
.ci-logo-display {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-top: 40px;
}
.ci-item { text-align: center; }
.ci-item img { height: 80px; margin-bottom: 16px; }
.ci-item-label {
    font-size: 16px;
    color: var(--color-text-light);
}

/* Map / Location */
.location-section { margin: 60px 0; }
.location-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-top: 30px;
}
.location-map {
    aspect-ratio: 16/9;
    background: var(--color-bg-light);
    border-radius: 12px;
    overflow: hidden;
}
.location-details { padding: 20px 0; }
.location-details dl {
    display: flex;
    padding: 10px 0;
    border-bottom: 1px solid var(--color-border);
}
.location-details dt {
    min-width: 80px;
    font-weight: 700;
    color: var(--color-dark);
    font-size: 16px;
}
.location-details dd {
    font-size: 16px;
    color: var(--color-text-light);
}

/* ===== Contact Page ===== */
.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin: 40px 0 60px;
}
.contact-info-card {
    text-align: center;
    padding: 40px 24px;
    background: var(--color-bg-light);
    border-radius: 12px;
}
.contact-info-card i {
    display: block;
    font-size: 34px;
    color: var(--color-primary);
    margin-bottom: 16px;
}
.contact-info-card h4 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.contact-info-card p { font-size: 16px; color: var(--color-text-light); margin: 0; }

.contact-form-section { margin: 60px 0; }
.contact-form {
    max-width: 640px;
    margin: 0 auto;
}
.form-group { margin-bottom: 24px; }
.form-label {
    display: block;
    font-size: 16px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 8px;
}
.form-input,
.form-textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font-size: 16px;
    transition: border-color var(--transition);
}
.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}
.form-textarea {
    min-height: 160px;
    resize: vertical;
}
.btn-submit {
    width: 100%;
    padding: 16px;
    background: var(--color-primary);
    color: #fff;
    font-size: 18px;
    font-weight: 700;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background var(--transition);
}
.btn-submit:hover { background: #0d47a1; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .page-hero { height: 240px; }
    .page-hero-title { font-size: 34px; }
    .sub-content { padding: 0 24px 60px; }
    .sol-tagline { padding-top: 24px; }
    .solution-video-grid { grid-template-columns: repeat(2, 1fr); }
    .problem-solution-row { grid-template-columns: 1fr; }
    .product-grid { grid-template-columns: 1fr; }
    .client-logo-grid { grid-template-columns: repeat(4, 1fr); }
    .ct-product-layout { grid-template-columns: 160px 1fr; gap: 24px; }
    .ct-product-body { grid-template-columns: 1fr; }
    .ct-media-row { grid-template-columns: repeat(2, 1fr); }
    .location-info { grid-template-columns: 1fr; }
    .ref-stats-row { gap: 40px; }
}
@media (max-width: 768px) {
    .page-hero { height: 200px; }
    .page-hero-title { font-size: 26px; }
    .solutions-tab-nav { overflow-x: auto; }
    .solutions-tab-nav li a { font-size: 16px; padding: 14px 12px; white-space: nowrap; }
    .solution-video-grid { grid-template-columns: 1fr; }
    .ps-grid { grid-template-columns: 1fr; }
    .effects-row { grid-template-columns: 1fr; }
    .achievement-grid { grid-template-columns: 1fr; }
    .client-logo-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); padding: 0 4px; gap: 8px; }
    .client-logo-item { padding: 10px; }
    .ct-product-layout { grid-template-columns: 1fr; }
    .ct-product-box-img { width: 140px; }
    .ct-media-row { grid-template-columns: repeat(2, 1fr); }
    .ref-stats-row { flex-wrap: wrap; gap: 20px; margin: 24px 0 32px; }
    .ref-stat .number { font-size: 28px; }
    .ref-stat .number .unit { font-size: 17px; }
    .ref-stat .label { font-size: 15px; }
    .ref-tab-btn, .ct-tab-btn { padding: 12px 20px; font-size: 16px; }
    .contact-info-grid { grid-template-columns: 1fr; gap: 16px; margin: 24px 0 40px; }
    .contact-info-card { padding: 24px 16px; }
    .contact-info-card i { font-size: 30px; margin-bottom: 12px; }
}

@media (max-width: 480px) {
    .sub-content { padding: 0 16px 40px; }
    .page-hero { height: 160px; }
    .page-hero-title { font-size: 22px; }
    .sol-tagline { font-size: 17px; padding: 16px 0; line-height: 1.5; }

    /* Tab navigation compression (tab bar is position:static from 768px block) */
    .sol-tab-inner { padding: 0 12px; row-gap: 4px; }
    .sol-tab-nav li a { font-size: 15px; padding: 5px 10px; }
    .sol-subtab-nav li a { font-size: 13px; padding: 3px 4px; }
    .sol-brand-en { display: none; }

    /* Problem/Solution rows — preserve top padding for the absolute badge */
    .sol-ba-card { padding: 28px 12px 10px; }
    .sol-ba-title { font-size: 15px; }
    .sol-ba-desc { font-size: 14px; line-height: 1.45; }
    .sol-ba-icon { width: 32px; height: 32px; font-size: 18px; }
    .sol-lineup-title { font-size: 20px; }

    /* References/stats */
    .ref-stats-row { gap: 12px; }
    .ref-stat .number { font-size: 22px; }
    .ref-stat .number .unit { font-size: 15px; }
    .ref-stat .label { font-size: 14px; }

    /* Client logos → 2 columns on tiny screens */
    .client-logo-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }

    /* Core-tech diff rows → 1 column */
    .ct-diff-row { grid-template-columns: 1fr; }
    .ct-media-row { grid-template-columns: 1fr; }

    /* Form inputs */
    .form-input, .form-textarea { font-size: 15px; padding: 12px 14px; }
    .btn-submit { font-size: 17px; padding: 14px; }

    /* Location map */
    .location-map iframe { height: 320px !important; }
}

/* ===== Business Framework Page ===== */
.biz-framework-section {
    padding: 0 0 80px;
    max-width: 1100px;
    margin: 0 auto;
}
.biz-framework-intro {
    text-align: center;
    margin-bottom: 56px;
}
.biz-framework-sub {
    font-size: 16px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: 14px;
}
.biz-framework-heading {
    font-size: 30px;
    font-weight: 700;
    color: var(--color-dark);
    line-height: 1.5;
}

/* ===== Hub & Spoke Layout (3 columns: left spokes / hub / right spokes) ===== */
.biz-hub-wrap {
    position: relative;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 28px;
    margin-top: 12px;
    padding: 16px 0;
    perspective: 1400px;
}
.biz-hub-wrap::before {
    /* Decorative radial backdrop behind hub */
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    width: 420px; height: 420px;
    background: radial-gradient(circle, rgba(237,28,36,0.04) 0%, rgba(237,28,36,0) 70%);
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 0;
}

.biz-spoke-col {
    display: flex;
    flex-direction: column;
    gap: 16px;
    position: relative;
    z-index: 2;
}

/* ===== Center Hub ===== */
.biz-hub-center {
    position: relative;
    z-index: 3;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: #ffffff;
    color: #0f172a;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    border: 1px solid #e5e9f0;
    box-shadow:
        0 8px 24px rgba(15, 23, 42, 0.06),
        inset 0 0 0 6px #f8fafc;
}
.biz-hub-logo {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -0.01em;
    line-height: 1;
    color: #ed1c24;
}
.biz-hub-label {
    font-size: 14px;
    font-weight: 500;
    color: #64748b;
    letter-spacing: 0.02em;
}
.biz-hub-ring {
    position: absolute;
    top: 50%; left: 50%;
    width: 250px; height: 250px;
    border: 1.5px dashed rgba(237,28,36,0.5);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    animation: bizRingSpin 30s linear infinite;
    pointer-events: none;
}
.biz-hub-ring--outer {
    width: 310px; height: 310px;
    border-style: solid;
    border-color: rgba(148,163,184,0.18);
    animation-duration: 50s;
    animation-direction: reverse;
}

/* Particle emitter - positioned at hub center */
.biz-hub-particles {
    position: absolute;
    top: 50%; left: 50%;
    width: 0; height: 0;
    pointer-events: none;
    z-index: 1;
}
.biz-particle {
    position: absolute;
    top: 0; left: 0;
    border-radius: 50%;
    background: radial-gradient(circle, #ed1c24 0%, rgba(237,28,36,0.75) 45%, rgba(237,28,36,0) 100%);
    box-shadow: 0 0 6px rgba(237,28,36,0.55);
    opacity: 0;
    animation-name: bizParticleFly;
    animation-timing-function: cubic-bezier(0.2, 0.6, 0.3, 1);
    animation-fill-mode: forwards;
    animation-duration: 2500ms;
    will-change: transform, opacity;
}
@keyframes bizParticleFly {
    0%   { transform: translate(var(--sx), var(--sy)) scale(0.4); opacity: 0; }
    15%  { opacity: 1; transform: translate(var(--sx), var(--sy)) scale(1); }
    70%  { opacity: 0.9; }
    100% { transform: translate(var(--ex), var(--ey)) scale(0.2); opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
    .biz-hub-particles { display: none; }
}
@keyframes bizRingSpin {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to   { transform: translate(-50%, -50%) rotate(360deg); }
}

/* ===== Spoke Cards (with gradient themes + 3D hover) ===== */
.biz-spoke-item {
    position: relative;
    display: grid;
    grid-template-columns: auto 1fr;
    column-gap: 14px;
    row-gap: 6px;
    align-items: center;
    background: #fff;
    border: 1px solid #e4eaf2;
    border-radius: 14px;
    padding: 18px 20px;
    transform-style: preserve-3d;
    transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1),
                box-shadow 0.4s cubic-bezier(0.2, 0.8, 0.2, 1),
                border-color 0.3s;
    overflow: hidden;
}
.biz-spoke-item::before {
    /* subtle gradient wash tied to theme */
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--theme-soft, #f6f9ff) 0%, #ffffff 60%);
    opacity: 0.6;
    z-index: 0;
    transition: opacity 0.3s;
}
.biz-spoke-item::after {
    /* top accent bar */
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--theme-color, var(--color-primary)), transparent 80%);
    transform: scaleX(0.4);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.biz-spoke-item > * { position: relative; z-index: 1; }
.biz-spoke-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 44px rgba(15, 23, 42, 0.10);
    border-color: var(--theme-color, var(--color-primary));
}
.biz-spoke-item:hover::before { opacity: 1; }
.biz-spoke-item:hover::after { transform: scaleX(1); }

/* Per-card theme colors */
/* 6개 사업 카드 통일 — 프라이머리 블루 톤 */
.biz-spoke-item[data-theme="blue"],
.biz-spoke-item[data-theme="teal"],
.biz-spoke-item[data-theme="cyan"],
.biz-spoke-item[data-theme="purple"],
.biz-spoke-item[data-theme="orange"],
.biz-spoke-item[data-theme="pink"] {
    --theme-color: var(--color-primary);
    --theme-soft: #f5f8fc;
}

.biz-spoke-icon {
    grid-column: 1;
    grid-row: 1;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--theme-soft, #eaf1fb);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0;
    transition: background 0.3s;
    flex-shrink: 0;
}
.biz-spoke-icon i {
    font-size: 22px;
    color: var(--theme-color, var(--color-primary));
    transition: color 0.3s;
}
.biz-spoke-item:hover .biz-spoke-icon {
    background: var(--theme-color, var(--color-primary));
}
.biz-spoke-item:hover .biz-spoke-icon i { color: #fff; }

.biz-spoke-title {
    grid-column: 2;
    grid-row: 1;
    font-size: 17px;
    font-weight: 700;
    color: var(--color-dark);
    line-height: 1.4;
    margin-bottom: 0;
    word-break: keep-all;
}
.biz-spoke-desc {
    grid-column: 1 / 3;
    grid-row: 2;
    font-size: 15.5px;
    color: var(--color-text-light);
    line-height: 1.6;
    margin: 0;
    word-break: keep-all;
}

@media (max-width: 900px) {
    .biz-hub-wrap {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto auto;
    }
    .biz-hub-center {
        grid-column: 1 / 3;
        grid-row: 1;
        width: 180px;
        height: 180px;
        justify-self: center;
    }
    .biz-spoke-col--left { grid-column: 1; grid-row: 2; }
    .biz-spoke-col--right { grid-column: 2; grid-row: 2; }
    .biz-hub-logo { font-size: 24px; }
    .biz-hub-ring { width: 220px; height: 220px; }
    .biz-hub-ring--outer { width: 290px; height: 290px; }
    .biz-framework-heading { font-size: 24px; }
}
@media (max-width: 600px) {
    .biz-hub-wrap { grid-template-columns: 1fr; }
    .biz-hub-center { grid-column: 1; grid-row: 1; width: 160px; height: 160px; }
    .biz-spoke-col--left { grid-column: 1; grid-row: 2; }
    .biz-spoke-col--right { grid-column: 1; grid-row: 3; }
    .biz-hub-logo { font-size: 22px; }
    .biz-hub-ring, .biz-hub-ring--outer { display: none; }
    .biz-hub-wrap::before { width: 300px; height: 300px; }
}
/* ===== Certificate / Patent Section ===== */
.cert-section {
    margin-top: 24px;
    padding-top: 0;
    border-top: none;
}
.cert-section:first-of-type { margin-top: 0; }
.cert-section-title {
    display: flex;
    align-items: center;
    font-size: 16px;
    font-weight: 800;
    letter-spacing: 0.05em;
    color: var(--color-primary);
    background: linear-gradient(90deg, rgba(0,100,200,0.08) 0%, transparent 60%);
    border-left: 3px solid var(--color-primary);
    padding: 8px 16px;
    border-radius: 0;
    margin-top: 0;
    margin-bottom: 20px;
}

/* 자격증 카드 그리드 */
.cert-card-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 14px;
    margin-bottom: 20px;
}
.cert-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 20px 14px;
    border: 1px solid #e4eaf2;
    border-radius: 12px;
    background: #fff;
    text-align: center;
    font-size: 16px;
    font-weight: 600;
    color: var(--color-dark);
    line-height: 1.5;
    transition: box-shadow 0.2s;
}
.cert-card:hover { box-shadow: 0 4px 16px rgba(25,118,210,0.1); }
.cert-card i { font-size: 28px; color: var(--color-text-muted); }
.cert-card small { font-size: 15px; font-weight: 400; color: var(--color-text-light); }
.cert-card--blue i { color: var(--color-primary); }

/* Cert card with thumbnail image */
.cert-card--thumb {
    position: relative;
    padding: 16px 12px 14px;
    gap: 12px;
}
.cert-card-thumb {
    display: block;
    width: 100%;
    height: 160px;
    object-fit: contain;
    background: transparent;
    border: 0;
    padding: 0;
}
.cert-card--thumb > span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}
.cert-card--thumb > span > i {
    font-size: 18px;
    color: var(--color-primary);
    flex-shrink: 0;
}
.cert-card--thumb > small {
    margin-top: -8px;
}

/* ===== 카드 플립 애니메이션 ===== */
.cert-flip {
    perspective: 1200px;
    height: 260px;
    padding: 0 !important;
    gap: 0 !important;
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    cursor: pointer;
}
.cert-flip:hover {
    box-shadow: none !important;
}
.cert-flip-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
    transition: transform 1.0s cubic-bezier(0.35, 0.15, 0.15, 1);
    border-radius: 12px;
    transform: rotateY(90deg); /* 스크롤 전: 옆면(안 보임) */
}
/* 스크롤로 진입 시 앞면으로 */
.cert-flip.in-view .cert-flip-inner {
    transform: rotateY(0deg);
}
/* 진입 후 호버: 뒷면으로 */
.cert-flip.in-view:hover .cert-flip-inner {
    transform: rotateY(180deg);
}
.cert-flip-front,
.cert-flip-back {
    position: absolute;
    inset: 0;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Front: 실제 인증서 이미지 */
.cert-flip-front {
    justify-content: space-between;
    padding: 16px 12px 14px;
    background: #fff;
    border: 1px solid #e4eaf2;
    gap: 10px;
    box-shadow: 0 2px 8px rgba(25,118,210,0.05);
    transition: box-shadow 0.2s;
}
.cert-flip:hover .cert-flip-front {
    box-shadow: 0 6px 20px rgba(25,118,210,0.12);
}
.cert-flip-front .cert-card-thumb {
    flex: 1;
    width: 100%;
    height: auto;
    max-height: 185px;
    object-fit: contain;
}
.cert-flip-front > span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-size: 15px;
    font-weight: 600;
    color: var(--color-dark);
    line-height: 1.4;
    text-align: center;
    flex-shrink: 0;
}
.cert-flip-front > span > i {
    font-size: 16px;
    color: var(--color-primary);
    flex-shrink: 0;
}
.cert-flip-front > small {
    font-size: 13px;
    font-weight: 400;
    color: var(--color-text-light);
    flex-shrink: 0;
    margin-top: -4px;
}

/* Back: 정보 패널 */
.cert-flip-back {
    transform: rotateY(180deg);
    background: linear-gradient(145deg, #1565c0 0%, #1976d2 55%, #1e88e5 100%);
    justify-content: center;
    gap: 0;
    padding: 24px 18px;
    text-align: center;
}
.cert-flip-back-icon {
    font-size: 38px;
    color: rgba(255,255,255,0.25);
    margin-bottom: 12px;
    line-height: 1;
}
.cert-flip-back-title {
    font-size: 15px;
    font-weight: 700;
    color: #fff;
    line-height: 1.55;
    margin-bottom: 0;
    word-break: keep-all;
}
.cert-flip-back-sub {
    font-size: 12.5px;
    font-weight: 400;
    color: rgba(255,255,255,0.65);
    margin-bottom: 0;
    line-height: 1.4;
}
.cert-flip-back-dl {
    width: 100%;
    display: grid;
    grid-template-columns: auto 1fr;
    row-gap: 5px;
    column-gap: 10px;
    border-top: 1px solid rgba(255,255,255,0.2);
    padding-top: 14px;
    margin-top: 14px;
    text-align: left;
}
.cert-flip-back-dl dt {
    font-size: 12px;
    font-weight: 500;
    color: rgba(255,255,255,0.5);
    white-space: nowrap;
    align-self: center;
}
.cert-flip-back-dl dd {
    font-size: 12px;
    font-weight: 600;
    color: #fff;
    margin: 0;
    align-self: center;
    word-break: keep-all;
}
/* 수상: 골드 계열 */
.cert-flip-back.gold {
    background: linear-gradient(145deg, #a0760a 0%, #c8980e 55%, #e0ab18 100%);
}

/* 수상 카드 플립 */
.cert-award-flip {
    perspective: 1200px;
    cursor: pointer;
}
.cert-award-flip .cert-flip-inner {
    height: 100%;
}
.cert-award-flip:hover .cert-flip-inner {
    transform: rotateY(180deg);
}
.cert-award-flip .cert-flip-front {
    justify-content: flex-start;
    padding: 0;
    border-radius: 12px;
    border: none;
}
.cert-award-flip .cert-flip-front .cert-award-thumbs {
    border-radius: 12px 12px 0 0;
    width: 100%;
    flex: 1;
}
.cert-award-flip .cert-flip-front .cert-award-thumbs img {
    border-radius: 12px 12px 0 0;
    height: 100%;
    max-height: none;
}
.cert-award-flip .cert-flip-front .cert-award-name {
    width: 100%;
    border-radius: 0 0 12px 12px;
    margin: 0;
}
.cert-award-flip .cert-flip-back {
    background: linear-gradient(145deg, #a0760a 0%, #c8980e 55%, #e0ab18 100%);
}

@media (max-width: 768px) {
    .cert-flip { height: 220px; }
    .cert-flip-front { padding: 12px 10px 10px; gap: 6px; }
    .cert-flip-front .cert-card-thumb { max-height: 140px; }
    .cert-flip-front > span { font-size: 13px; }
    .cert-flip-front > span > i { font-size: 14px; }
    .cert-flip-front > small { font-size: 11px; margin-top: -2px; }
    .cert-flip-back { padding: 16px 14px; }
    .cert-flip-back-icon { font-size: 28px; margin-bottom: 8px; }
    .cert-flip-back-title { font-size: 13px; }
    .cert-flip-back-dl { margin-top: 10px; padding-top: 10px; row-gap: 4px; }
    .cert-flip-back-dl dt,
    .cert-flip-back-dl dd { font-size: 11px; }
}

/* 직접생산 업종 박스 */
.cert-sub-box {
    background: #f7f9fc;
    border-radius: 10px;
    padding: 18px 22px;
}
.cert-sub-label {
    font-size: 15px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 10px;
}
.cert-tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    list-style: none;
}
.cert-tag-list li {
    font-size: 15px;
    color: var(--color-text-light);
    background: #fff;
    border: 1px solid #dde3ef;
    border-radius: 16px;
    padding: 4px 12px;
}

/* 지식재산 2컬럼 */
.cert-ip-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}
.cert-ip-col {
    background: #fff;
    border: 1px solid #e4eaf2;
    border-radius: 12px;
    padding: 22px 24px;
}
.cert-ip-label {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 6px;
}
.cert-ip-list {
    list-style: none;
}
.cert-ip-list li {
    font-size: 15.5px;
    color: var(--color-text);
    padding: 6px 0;
    border-bottom: 1px solid #f0f2f6;
    line-height: 1.55;
}
.cert-ip-list li:last-child { border-bottom: none; }
.cert-ip-list li em {
    font-style: normal;
    font-size: 15px;
    color: var(--color-text-muted);
    margin-left: 4px;
}
.cert-patent-thumbs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-top: 18px;
}
.cert-patent-thumbs img {
    width: 100%;
    height: 180px;
    object-fit: contain;
    background: #f8fafc;
    border: 1px solid #eef2f7;
    border-radius: 6px;
    padding: 6px;
    transition: transform 0.35s ease, box-shadow 0.35s ease, opacity 0.5s ease;
    opacity: 0;
    transform: scale(0.92);
}
.cert-patent-thumbs img.in-view {
    opacity: 1;
    transform: scale(1);
}
.cert-patent-thumbs img:hover {
    transform: scale(1.04);
    box-shadow: 0 8px 24px rgba(25,118,210,0.13);
    border-color: #c5d8f5;
    z-index: 1;
    position: relative;
}

/* ===== 지식재산 마이크로인터랙션 ===== */
.cert-ip-col {
    transition: transform 0.35s ease, box-shadow 0.35s ease, opacity 0.6s ease;
    opacity: 0;
    transform: translateY(32px);
}
.cert-ip-col.in-view {
    opacity: 1;
    transform: translateY(0);
}
.cert-ip-col:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(25,118,210,0.09);
}
.cert-ip-col.in-view:hover {
    transform: translateY(-4px);
}

/* 리스트 항목 순차 등장 */
.cert-ip-list li {
    opacity: 0;
    transform: translateX(-14px);
    transition: opacity 0.4s ease, transform 0.4s ease, background 0.2s, border-color 0.2s, padding-left 0.2s;
}
.cert-ip-list li.in-view {
    opacity: 1;
    transform: translateX(0);
}
/* 리스트 항목 호버 */
.cert-ip-list li:hover {
    background: #f0f5ff;
    border-bottom-color: #d0dff5;
    padding-left: 8px;
    border-radius: 4px;
}
.cert-ip-list li:hover em {
    color: var(--color-primary);
}

/* 수상 그리드 */
.cert-award-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}
.cert-award-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 22px 14px;
    border: 1px solid #e4eaf2;
    border-radius: 12px;
    background: #fff;
    text-align: center;
    transition: box-shadow 0.2s;
}
.cert-award-item:hover { box-shadow: 0 4px 16px rgba(25,118,210,0.1); }
.cert-award-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: #fff8e1;
    display: flex;
    align-items: center;
    justify-content: center;
}
.cert-award-icon i { font-size: 24px; color: #f5a623; }
.cert-award-thumbs {
    display: flex;
    gap: 6px;
    justify-content: center;
    align-items: center;
    width: 100%;
}
.cert-award-thumbs img {
    display: block;
    width: 100%;
    max-width: 150px;
    height: 160px;
    object-fit: contain;
    background: transparent;
}
.cert-award-thumbs--dual img { max-width: calc(50% - 3px); height: 150px; }
.cert-award-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-dark);
    line-height: 1.5;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}
.cert-award-name > i { font-size: 18px; color: #f5a623; flex-shrink: 0; }

@media (max-width: 1024px) {
    .cert-card-grid { grid-template-columns: 1fr; }
    .cert-award-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
    .cert-ip-grid { grid-template-columns: 1fr; }
}

/* Insight empty state */
.insight-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 20px 120px;
    text-align: center;
    color: var(--color-text-muted);
}
.insight-empty i {
    font-size: 58px;
    color: #d0d8e4;
    margin-bottom: 20px;
}
.insight-empty-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 10px;
}
.insight-empty-desc {
    font-size: 16px;
    color: var(--color-text-muted);
    line-height: 1.8;
}

/* Insight List */
.insight-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}
.insight-item {
    display: flex;
    gap: 40px;
    align-items: flex-start;
    padding: 40px 0;
    border-bottom: 1px solid #e8edf2;
}
.insight-item:last-child {
    border-bottom: none;
}
.insight-thumb {
    flex: 0 0 300px;
    width: 300px;
    height: 200px;
    overflow: hidden;
    border-radius: 4px;
    background: #e8edf2;
}
.insight-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.insight-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.insight-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-dark);
    line-height: 1.4;
}
.insight-desc {
    font-size: 16px;
    color: var(--color-text-light);
    line-height: 1.8;
    flex: 1;
}
.insight-pdf-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 28px;
    border: 1px solid #cdd3da;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text);
    background: #fff;
    text-decoration: none;
    align-self: flex-start;
    transition: background 0.2s, color 0.2s;
}
.insight-pdf-btn:hover {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

@media (max-width: 768px) {
    .insight-item { flex-direction: column; gap: 16px; }
    .insight-thumb { flex: none; width: 100%; height: auto; max-height: 240px; }
    .sol-tab-inner { flex-wrap: wrap; padding: 0 16px; row-gap: 6px; }
    .sol-tab-nav { flex-wrap: wrap; }
    .sol-tab-nav li a { padding: 6px 12px; font-size: 16px; }
    .sol-subtab-nav { flex-wrap: wrap; width: 100%; margin-left: 0; border-radius: 12px; }
    .sol-subtab-nav li a { font-size: 15px; padding: 4px 6px; }
    /* Unfix tab bar on mobile: let it flow in DOM so content never overlaps */
    .sol-header-wrap { padding-top: var(--header-height); }
    .sol-header-wrap.has-subtab-bar { padding-top: var(--header-height); }
    .sol-tab-bar { position: static; padding: 8px 0; }
    .sol-subtab-bar { position: static; padding: 6px 0; transform: none !important; top: auto !important; }
    .sol-tagline { padding: 20px 0; font-size: 20px; }
}

/* ===== Business Pages: biz-* ===== */
.biz-insight-wrap { padding: 100px 0 0; }
.biz-portfolio-wrap { padding: 100px 0; background: #f7f9fc; }
.biz-section-head { text-align: center; padding: 0 24px; margin-bottom: 72px; }
.biz-section-title { font-size: clamp(20px, 2.4vw, 30px); font-weight: 400; color: #111; margin-top: 14px; line-height: 1.35; white-space: nowrap; }

.biz-challenge-list { max-width: 1280px; margin: 0 auto; padding: 0 56px; }
.biz-challenge-item { display: grid; grid-template-columns: 72px 1fr 52px 1fr; gap: 0 24px; align-items: stretch; padding: 44px 0; border-bottom: 1px solid #e8eef6; }
.biz-challenge-item:last-child { border-bottom: none; }
.biz-challenge-num { font-size: 52px; font-weight: 800; color: #dde5f3; line-height: 1; padding-top: 14px; text-align: right; padding-right: 4px; white-space: nowrap; }
.biz-problem-card, .biz-solution-card { display: flex; flex-direction: column; justify-content: flex-start; border-radius: 14px; transition: transform 0.25s, box-shadow 0.25s; }
.biz-problem-card { padding: 28px 30px 30px; background: #fff; border: 1px solid #eaecf0; box-shadow: 0 4px 20px rgba(0,0,0,0.06); }
.biz-problem-card:hover { transform: translateY(-5px); box-shadow: 0 14px 36px rgba(0,0,0,0.11); }
.biz-solution-card { padding: 28px 30px 30px; background: #fff; border: 1px solid #d0e4f7; box-shadow: 0 4px 20px rgba(26,110,192,0.08); }
.biz-solution-card:hover { transform: translateY(-5px); box-shadow: 0 14px 36px rgba(26,110,192,0.14); }
.biz-card-top { display: flex; align-items: center; gap: 10px; margin-bottom: 18px; }
.biz-card-icon { font-size: 22px; flex-shrink: 0; }
.biz-problem-card .biz-card-icon { color: #e53e3e; }
.biz-solution-card .biz-card-icon { color: #1a6ec0; }
.biz-card-label { font-size: 10px; font-weight: 800; letter-spacing: 0.14em; text-transform: uppercase; padding: 4px 11px; border-radius: 20px; }
.biz-problem-card .biz-card-label { background: #fff0f0; color: #c53030; }
.biz-solution-card .biz-card-label { background: #e8f0fc; color: #1a5ea0; }
.biz-card-title { font-size: 18px; font-weight: 700; line-height: 1.45; margin-bottom: 12px; }
.biz-problem-card .biz-card-title { color: #000; }
.biz-solution-card .biz-card-title { color: #000; }
.biz-card-desc { font-size: 15px; line-height: 1.85; }
.biz-problem-card .biz-card-desc { color: #000; }
.biz-solution-card .biz-card-desc { color: #000; }
.biz-arrow-center { display: flex; align-items: center; justify-content: center; }
.biz-arrow-center i { display: none; }

.biz-challenge-item.reveal { opacity: 1 !important; transform: none !important; }
.biz-challenge-item .biz-challenge-num,
.biz-challenge-item .biz-problem-card,
.biz-challenge-item .biz-arrow-center,
.biz-challenge-item .biz-solution-card { opacity: 0; transform: translateY(24px); }
.biz-challenge-item .biz-card-top,
.biz-challenge-item .biz-card-title,
.biz-challenge-item .biz-card-desc { opacity: 0; transform: translateY(10px); }
.biz-challenge-item .biz-challenge-num { transition: opacity 0.5s ease, transform 0.5s cubic-bezier(0.22,1,0.36,1); }
.biz-challenge-item .biz-problem-card { transition: opacity 0.55s ease, transform 0.55s cubic-bezier(0.22,1,0.36,1), box-shadow 0.25s; }
.biz-challenge-item .biz-arrow-center { transition: opacity 0.4s ease, transform 0.4s cubic-bezier(0.22,1,0.36,1); }
.biz-challenge-item .biz-solution-card { transition: opacity 0.55s ease, transform 0.55s cubic-bezier(0.22,1,0.36,1), box-shadow 0.25s; }
.biz-challenge-item .biz-card-top,
.biz-challenge-item .biz-card-title,
.biz-challenge-item .biz-card-desc { transition: opacity 0.4s ease, transform 0.4s cubic-bezier(0.22,1,0.36,1); }
.biz-challenge-item.is-visible .biz-challenge-num  { opacity:1; transform:none; transition-delay: 0s; }
.biz-challenge-item.is-visible .biz-problem-card   { opacity:1; transform:none; transition-delay: 0.14s; }
.biz-challenge-item.is-visible .biz-arrow-center   { opacity:1; transform:none; transition-delay: 0.54s; }
.biz-challenge-item.is-visible .biz-solution-card  { opacity:1; transform:none; transition-delay: 0.7s; }
.biz-challenge-item.is-visible .biz-problem-card .biz-card-top   { opacity:1; transform:none; transition-delay: 0.3s; }
.biz-challenge-item.is-visible .biz-problem-card .biz-card-title { opacity:1; transform:none; transition-delay: 0.42s; }
.biz-challenge-item.is-visible .biz-problem-card .biz-card-desc  { opacity:1; transform:none; transition-delay: 0.54s; }
.biz-challenge-item.is-visible .biz-solution-card .biz-card-top   { opacity:1; transform:none; transition-delay: 0.86s; }
.biz-challenge-item.is-visible .biz-solution-card .biz-card-title { opacity:1; transform:none; transition-delay: 0.98s; }
.biz-challenge-item.is-visible .biz-solution-card .biz-card-desc  { opacity:1; transform:none; transition-delay: 1.1s; }

.biz-value-section { position: relative; padding: 80px 56px; width: 100vw; margin-left: calc(50% - 50vw); overflow: hidden; background: #0d1c30; }
.biz-value-bg-img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; filter: brightness(0.55); z-index: 0; }
.biz-value-inner { position: relative; z-index: 1; max-width: 1280px; margin: 0 auto; }
.biz-value-head { text-align: center; margin-bottom: 52px; }
.biz-value-head .pv-eyebrow { color: rgba(255,255,255,0.75); text-shadow: 0 1px 6px rgba(0,0,0,0.4); }
.biz-value-head-title { font-size: clamp(20px, 2.5vw, 28px); font-weight: 700; color: #fff; margin-top: 12px; text-shadow: 0 2px 12px rgba(0,0,0,0.45); }
.biz-value-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.biz-value-card { background: rgba(255,255,255,0.12); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border: 1px solid rgba(255,255,255,0.22); border-radius: 16px; padding: 40px 36px; transition: background 0.25s, transform 0.25s, box-shadow 0.25s; }
.biz-value-card:hover { background: rgba(255,255,255,0.2); transform: translateY(-5px); box-shadow: 0 16px 40px rgba(0,0,0,0.18); }
.biz-value-card-bar { width: 36px; height: 3px; background: #fff; border-radius: 2px; margin-bottom: 20px; opacity: 0.7; }
.biz-value-card-title { font-size: 19px; font-weight: 700; color: #fff; margin-bottom: 14px; line-height: 1.4; text-shadow: 0 1px 8px rgba(0,0,0,0.3); }
.biz-value-card-desc { font-size: 14px; color: rgba(255,255,255,0.82); line-height: 1.8; }

.biz-sol-section { max-width: 1280px; margin: 0 auto 96px; padding: 0 56px; }
.biz-sol-section:last-child { margin-bottom: 0; }
.biz-sol-header { display: flex; align-items: flex-start; gap: 24px; margin-bottom: 36px; }
.biz-sol-num { font-size: 72px; font-weight: 800; color: #000; line-height: 1; flex-shrink: 0; padding-top: 4px; }
.biz-sol-title-group { display: flex; flex-direction: column; gap: 14px; }
.biz-sol-title { font-size: 34px; font-weight: 700; color: #000; line-height: 1.3; }
.biz-sol-quote { font-size: 22px; color: #000; font-style: normal; line-height: 1.55; }
.biz-sol-viewer-wrap { position: relative; margin-bottom: 36px; padding: 0 28px; }
.biz-sol-viewer { overflow: hidden; }
.biz-sol-viewer-track { display: flex; gap: 16px; transition: transform 0.45s cubic-bezier(0.22,1,0.36,1); will-change: transform; }
.biz-sol-viewer-item { flex: 0 0 calc((100% - 32px) / 3); position: relative; border-radius: 12px; overflow: hidden; cursor: pointer; }
.biz-sol-vitem-inner { height: 216px; background-size: cover; background-position: center; transition: transform 0.45s cubic-bezier(0.22,1,0.36,1); display: block; }
.biz-sol-viewer-item:hover .biz-sol-vitem-inner { transform: scale(1.06); }
.biz-sol-vplay-btn { position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); width: 48px; height: 48px; border-radius: 50%; background: rgba(255,255,255,0.9); display: flex; align-items: center; justify-content: center; font-size: 18px; color: #1a6ec0; box-shadow: 0 3px 14px rgba(0,0,0,0.25); transition: transform 0.25s, box-shadow 0.25s; pointer-events: none; }
.biz-sol-viewer-item:hover .biz-sol-vplay-btn { transform: translate(-50%,-50%) scale(1.15); box-shadow: 0 6px 20px rgba(0,0,0,0.32); }
.biz-sol-vitem-caption { position: absolute; bottom: 0; left: 0; right: 0; padding: 40px 14px 12px; background: linear-gradient(to top, rgba(0,0,0,0.68) 0%, transparent 100%); color: #fff; font-size: 14px; font-weight: 500; pointer-events: none; }
.biz-sol-nav-btn { position: absolute; top: 50%; transform: translateY(-50%); width: 40px; height: 40px; border-radius: 50%; background: #fff; border: 1px solid #dde5f0; display: flex; align-items: center; justify-content: center; font-size: 16px; color: #333; cursor: pointer; z-index: 4; transition: background 0.2s, box-shadow 0.2s, color 0.2s, border-color 0.2s; box-shadow: 0 2px 10px rgba(0,0,0,0.10); }
.biz-sol-nav-btn:hover { background: #1a6ec0; color: #fff; border-color: #1a6ec0; box-shadow: 0 4px 16px rgba(26,110,192,0.28); }
.biz-sol-nav-btn:disabled { opacity: 0.25; cursor: default; pointer-events: none; }
.biz-sol-nav-prev { left: -4px; }
.biz-sol-nav-next { right: -4px; }
.biz-sol-features { display: flex; flex-direction: column; gap: 20px; }
.biz-feat-grid { display: grid; grid-template-columns: 1fr; gap: 20px; }
.biz-feat-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.biz-feat-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.biz-meta-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.biz-feat-card { padding: 28px 24px 26px; border-radius: 14px; background: #fff; border: 1px solid #e4eaf2; min-width: 0; }
.biz-feat-card:not(.meta-feat) { display: grid; grid-template-columns: 72px 1fr; column-gap: 20px; row-gap: 14px; align-items: center; }
.biz-feat-card.feat-anim { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.22,1,0.36,1), box-shadow 0.3s, border-color 0.3s; }
.biz-feat-card.feat-anim.is-visible { opacity: 1; transform: translateY(0); }
.biz-feat-card.feat-anim.is-visible:hover { transform: translateY(-6px); box-shadow: 0 16px 32px rgba(26,110,192,0.09); border-color: #1a6ec0; }
.biz-feat-card.meta-feat { background: #f5f8fc; border-color: #dde5f0; }
.biz-feat-icon-area { width: 72px; height: 72px; margin-bottom: 0; position: relative; }
.biz-feat-title { font-size: 18px; font-weight: 700; color: #111; margin-bottom: 0; }
.biz-feat-card:not(.meta-feat) .biz-feat-desc { grid-column: 1 / 3; font-size: 15px; color: #000; line-height: 1.75; }
.biz-feat-desc { font-size: 15px; color: #000; line-height: 1.75; }
.biz-feat-card.meta-feat .biz-feat-title { color: #000; font-size: 15px; }
.biz-feat-card.meta-feat .biz-feat-desc { color: #000; font-size: 15px; }

.fa-rings { position: relative; width: 72px; height: 72px; }
.fa-rings .dot { position: absolute; top: 50%; left: 50%; width: 16px; height: 16px; margin: -8px; background: #1a6ec0; border-radius: 50%; box-shadow: 0 0 10px rgba(26,110,192,0.45); }
.fa-rings .ring { position: absolute; top: 50%; left: 50%; width: 36px; height: 36px; margin: -18px; border: 2.5px solid #1a6ec0; border-radius: 50%; animation: faRingPulse 2.4s ease-out infinite; }
.fa-rings .ring:nth-child(3) { animation-delay: 1.2s; }
@keyframes faRingPulse { 0% { transform: scale(0.5); opacity: 0.85; } 100% { transform: scale(2.6); opacity: 0; } }
.fa-layers { position: relative; width: 72px; height: 72px; }
.fa-layers .layer { position: absolute; width: 44px; height: 44px; border: 2px solid #1a6ec0; border-radius: 9px; background: rgba(26,110,192,0.07); animation: faLayerFloat 3s ease-in-out infinite; }
.fa-layers .layer:nth-child(1) { top: 0; left: 0; opacity: 0.35; animation-delay: 0s; }
.fa-layers .layer:nth-child(2) { top: 14px; left: 14px; opacity: 0.7; animation-delay: 0.22s; }
.fa-layers .layer:nth-child(3) { top: 28px; left: 28px; background: rgba(26,110,192,0.18); animation-delay: 0.44s; }
@keyframes faLayerFloat { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-7px); } }
.fa-bars { display: flex; align-items: flex-end; gap: 7px; padding-top: 8px; width: 72px; height: 72px; }
.fa-bars .bar { flex: 1; border-radius: 3px 3px 0 0; background: linear-gradient(180deg, #5ba4f7 0%, #1a6ec0 100%); transform-origin: bottom; animation: faBarsRise 1.7s ease-in-out infinite alternate; }
.fa-bars .bar:nth-child(1) { height: 55%; animation-delay: 0s; }
.fa-bars .bar:nth-child(2) { height: 88%; animation-delay: 0.18s; }
.fa-bars .bar:nth-child(3) { height: 66%; animation-delay: 0.36s; }
.fa-bars .bar:nth-child(4) { height: 100%; animation-delay: 0.54s; }
@keyframes faBarsRise { 0% { transform: scaleY(1); } 100% { transform: scaleY(0.48); } }
.fa-orbit { position: relative; width: 72px; height: 72px; }
.fa-orbit .globe { position: absolute; top: 50%; left: 50%; width: 32px; height: 32px; margin: -16px; border: 2px solid #1a6ec0; border-radius: 50%; background: rgba(26,110,192,0.1); }
.fa-orbit .orbit-path { position: absolute; top: 50%; left: 50%; width: 60px; height: 60px; margin: -30px; animation: faOrbitSpin 4s linear infinite; }
.fa-orbit .orbit-dot { position: absolute; top: -5px; left: 50%; width: 10px; height: 10px; margin-left: -5px; background: #1a6ec0; border-radius: 50%; box-shadow: 0 0 8px rgba(26,110,192,0.6); }
@keyframes faOrbitSpin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }
.fa-sparkle { position: relative; width: 72px; height: 72px; }
.fa-sparkle .core { position: absolute; top: 50%; left: 50%; width: 24px; height: 24px; margin: -12px; background: radial-gradient(circle, #5ba4f7 0%, #1a6ec0 80%); border-radius: 50%; box-shadow: 0 0 14px rgba(26,110,192,0.45); animation: faSpkCore 2s ease-in-out infinite; }
.fa-sparkle .sp { position: absolute; width: 8px; height: 8px; background: #1a6ec0; border-radius: 50%; opacity: 0; animation: faSpkPoint 1.8s ease-in-out infinite; }
.fa-sparkle .sp:nth-child(2) { top: 6px; left: 50%; margin-left: -4px; animation-delay: 0s; }
.fa-sparkle .sp:nth-child(3) { top: 50%; right: 6px; margin-top: -4px; animation-delay: 0.45s; }
.fa-sparkle .sp:nth-child(4) { bottom: 6px; left: 50%; margin-left: -4px; animation-delay: 0.9s; }
.fa-sparkle .sp:nth-child(5) { top: 50%; left: 6px; margin-top: -4px; animation-delay: 1.35s; }
@keyframes faSpkCore { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.18); } }
@keyframes faSpkPoint { 0%, 100% { opacity: 0; transform: scale(0.3) translateY(0); } 50% { opacity: 1; transform: scale(1) translateY(-7px); } }

@media (max-width: 1100px) {
    .biz-challenge-list { padding: 0 28px; }
    .biz-challenge-item { grid-template-columns: 52px 1fr 36px 1fr; gap: 0 16px; }
    .biz-challenge-num { font-size: 38px; }
    .biz-value-section { padding: 64px 28px; }
    .biz-sol-section { padding: 0 28px; margin-bottom: 64px; }
    .biz-sol-vitem-inner { height: 180px; }
    .biz-feat-grid.cols-3 { grid-template-columns: repeat(2, 1fr); }
    .biz-meta-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
    .biz-challenge-item { grid-template-columns: 1fr; gap: 0; }
    .biz-challenge-num { font-size: 36px; text-align: left; padding-right: 0; margin-bottom: 16px; }
    .biz-arrow-center { transform: none; padding: 8px 0; }
    .biz-value-cards { grid-template-columns: 1fr; }
    .biz-sol-viewer-item { flex: 0 0 100%; }
    .biz-sol-vitem-inner { height: 160px; }
    .biz-feat-grid.cols-2,
    .biz-feat-grid.cols-3 { grid-template-columns: 1fr; }
    .biz-meta-grid { grid-template-columns: 1fr; }
    .biz-sol-num { font-size: 38px; }
    .biz-sol-title { font-size: 20px; }
    .biz-section-title { white-space: normal; word-break: keep-all; }
}