@charset "UTF-8";

#content img { max-width: 100%; display: block; }

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--main-color);
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    padding: 15px 32px;
    border-radius: 10px;
    border: none;
    cursor: pointer;
}
.btn-primary:hover {
    background: var(--main-color-dark);
    transform: translateY(-2px);
    box-shadow: 0 14px 32px rgba(0,102,255,0.45);
}
.btn-primary svg { width: 16px; height: 16px; }

/* ===== CONCEPT SECTION ===== */
.concept {
    background: #fff;
    position: relative;
}
.concept-cards {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr;
    gap: 0;
    align-items: center;
    margin-bottom: 56px;
}
@media (max-width: 900px) {
    .concept-cards { grid-template-columns: 1fr; gap: 16px; }
}
.concept-card {
    background: #F5F7FB;
    border: 1px solid #e2e8f4;
    border-radius: 20px;
    padding: 36px 28px;
    text-align: center;
    position: relative;
}
.concept-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 48px rgba(0,102,255,0.15);
    border-color: var(--main-color);
}
.concept-card-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 16px;
    border-radius: 18px;
    overflow: hidden;
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
}
.concept-card-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}
.concept-card-badge {
    display: inline-block;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 4px 12px;
    border-radius: 100px;
    margin-bottom: 12px;
}
.concept-card-badge.blue {
    background: rgba(0,102,255,0.1);
    color: var(--main-color);
}
.concept-card-badge.cyan {
    background: rgba(0,242,255,0.12);
    color: #00b8c4;
}
.concept-card-badge.green {
    background: rgba(0,200,100,0.1);
    color: #16a34a;
}
.concept-card h3 {
    font-size: var(--fs-label);
    font-weight: 800;
    color: var(--main-color);
    margin-bottom: 8px;
}
.concept-card .role {
    color: #555E6E;
    font-size:var(--fs-desc-sub);
    line-height: 1.65;
}
.concept-card .role strong {
    color: #1a1f2e;
    display: block;
    margin-bottom: 4px;
    font-size: 1.25rem;
}
.concept-arrow-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 16px;
    flex-shrink: 0;
}
.concept-arrow-wrap svg {
    color: var(--main-color);
    opacity: 0.5;
}
@media (max-width: 900px) {
    .concept-arrow-wrap { transform: rotate(90deg); padding: 0; }
}
.concept-highlight {
    background: linear-gradient(135deg, rgba(0,102,255,0.06), rgba(0,242,255,0.05));
    border: 1.5px solid rgba(0,102,255,0.18);
    border-radius: 20px;
    padding: 36px 48px;
    text-align: center;
}
.concept-highlight p {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1a1f2e;
    line-height: 1.5;
}
.concept-highlight p span { color: var(--main-color); }

/* ===== SCENARIO SECTION ===== */
.scenario {
    background: #0D1220;
    position: relative;
    overflow: hidden;
}
.scenario::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0,102,255,0.4), transparent);
}
.scenario::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0,102,255,0.4), transparent);
}
.scenario-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 600px;
    background: radial-gradient(ellipse, rgba(0,102,255,0.08) 0%, transparent 65%);
    pointer-events: none;
}
.timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}
.tl-line {
    position: absolute;
    left: 27px;
    top: 24px;
    bottom: 24px;
    width: 2px;
    background: linear-gradient(to bottom, var(--main-color), var(--main-color-cyan));
    border-radius: 2px;
}
.tl-item {
    display: grid;
    grid-template-columns: 56px 1fr auto;
    gap: 20px;
    align-items: flex-start;
    padding: 14px 0;
    position: relative;
}
@media (max-width: 640px) {
    .tl-item { grid-template-columns: 48px 1fr; }
    .tl-time { display: none; }
}
.tl-num {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: #111827;
    border: 2px solid var(--main-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 900;
    color: #fff;
    z-index: 2;
    flex-shrink: 0;
    box-shadow: 0 0 20px rgba(0,102,255,0.3);
}
.tl-item:hover .tl-num {
    background: var(--main-color);
    box-shadow: 0 0 30px rgba(0,102,255,0.5);
}
.tl-content {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.07);
    padding: 2rem 2rem;
    border-radius:14px;
}
.tl-item:hover .tl-content {
    background: rgba(255,255,255,0.05);
    border-color: rgba(0,102,255,0.3);
}
.tl-content h4 {
    font-size: var(--fs-label-sub);
    font-weight: 700;
    color: #fff;
    margin-bottom: 6px;
}
.tl-content p {
    font-size: var(--fs-desc-sub);
    color: #8B95A8;
    line-height: 1.65;
}
.tl-time {
    min-width:40px;
    align-self: center;
    text-align: center;
    font-weight: 700;
    color: var(--main-color-cyan);
    background: rgba(0,242,255,0.08);
    border: 1px solid rgba(0,242,255,0.2);
    padding: 6px 16px;
    border-radius: 100px;
    white-space: nowrap;
    flex-shrink: 0;
}
.scenario-caption {
    margin-top: 56px;
    text-align: center;
    padding: 28px 40px;
    background: rgba(0,242,255,0.05);
    border: 1px solid rgba(0,242,255,0.15);
    border-radius: 16px;
    max-width: 920px;
    margin-left: auto;
    margin-right: auto;
}
.scenario-caption p {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--main-color-cyan);
    line-height: 1.65;
    word-break: keep-all;
}

/* ===== EQUIPMENT SECTION ===== */
.equip {
    background: #fff;
}
.equip-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}
@media (max-width: 768px) { .equip-grid { grid-template-columns: 1fr; } }
.equip-card {
    border: 1px solid #E2E8F4;
    border-radius: 20px;
    padding: 2rem;
    background: #fff;
    position: relative;
    overflow: hidden;
}
.equip-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--main-color), var(--main-color-cyan));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}
.equip-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 48px rgba(0,102,255,0.15);
    border-color: rgba(0,102,255,0.25);
}
.equip-card:hover::before { transform: scaleX(1); }
.equip-head {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 24px;
}
.equip-icon-wrap {
    width: 76px;
    height: 76px;
    border-radius: 14px;
    background: transparent;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    overflow: hidden;
}
.equip-icon-wrap img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}
.equip-head-text h3 {
    font-size: var(--fs-label-sub);
    font-weight: 700;
    color: #1a1f2e;
    margin-bottom: 6px;
}
.equip-head-text .equip-sub {
    font-size: var(--fs-desc-sub);
    color: #555E6E;
    line-height: 1.5;
}
.equip-divider {
    height: 1px;
    background: #E2E8F4;
}
.equip-row {
    display: flex;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid #EEF1F8;
}
.equip-row:last-child { border-bottom: none; }
.equip-tag {
    min-width:66px;
    text-align:center;
    font-weight: 500;
    padding: 4px 12px;
    border-radius: 100px;
    flex-shrink: 0;
    height: fit-content;
    white-space: nowrap;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}
.equip-tag.def { background: rgba(0,102,255,0.08); color: var(--main-color); }
.equip-tag.no { background: rgba(239,68,68,0.08); color: #dc2626; }
.equip-tag.yes { background: rgba(22,163,74,0.1); color: #16a34a; }
.equip-row p { font-size:var(--fs-desc-sub);color: #444; line-height: 1.65; }

/* ===== AI x WCS SECTION ===== */
.aiwcs {
    background: #0A0E1A;
    overflow: hidden;
}
.aiwcs::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0,242,255,0.3), transparent);
}
.aiwcs-glow {
    position: absolute;
    top: 50%;
    right: -200px;
    transform: translateY(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(ellipse, rgba(0,242,255,0.07) 0%, transparent 65%);
    pointer-events: none;
}
.aiwcs-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}
@media (max-width: 900px) { .aiwcs-inner { grid-template-columns: 1fr; gap: 48px; } }
.aiwcs-caption {
    margin-top: 32px;
    padding: 24px 28px;
    background: rgba(0,102,255,0.08);
    border: 1px solid rgba(0,102,255,0.2);
    border-radius: 14px;
}
.aiwcs-caption p {
    font-size: 1.25rem;
    font-weight: 600;
    color: #fff;
    line-height: 1.7;
}
.aiwcs-caption p span { color: var(--main-color-cyan); }
.flow-diagram {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.flow-box {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.07);
    padding: 24px 28px;
    border-radius:16px;
}
.flow-box:hover {
    background: rgba(255,255,255,0.05);
    border-color: rgba(0,102,255,0.25);
}
.flow-box.highlight {
    background: rgba(0,102,255,0.1);
    border-color: rgba(0,102,255,0.35);
    box-shadow: 0 0 30px rgba(0,102,255,0.12);
}
.flow-box-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 6px;
}
.flow-box-label.blue { color: #60a5ff; }
.flow-box-label.cyan { color: var(--main-color-cyan); }
.flow-box-label.green { color: #4ade80; }
.flow-box h4 {
    font-size: var(--fs-label-sub);
    font-weight: 700;
    color: #fff;
    margin-bottom: 8px;
}
.flow-box p {
    font-size: var(--fs-desc-sub);
    color: #8B95A8;
    line-height: 1.65;
}
.flow-connector {
    display: flex;
    justify-content: center;
    padding: 6px 0;
    color: rgba(99,160,255,0.85);
}

/* ===== COMPARE SECTION ===== */
.compare {
    background: #F5F7FB;
}
.compare-table-wrap {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 8px 40px rgba(0,0,0,0.08);
}
.compare-table {
    width: 100%;
    border-collapse: collapse;
}
.compare-table thead tr th {
    padding: 20px 24px;
    font-weight: 700;
    text-align: center;
}
.compare-table th.col-situation {
    background: #f0f3fa;
    color: #666;
    border-bottom: 2px solid #E2E8F4;
}
.compare-table th.col-general {
    background: #f4f6fa;
    color: #888;
    border-bottom: 2px solid #E2E8F4;
}
.compare-table th.col-wekeep {
    background: var(--main-color);
    color: #fff;
    border-bottom: 2px solid var(--main-color-dark);
    width: 37.5%;
    position: relative;
}
.compare-table th.col-wekeep::before {
    content: '→';
    position: absolute;
    left: -18px;
    top: 50%;
    transform: translateY(-50%);
    width: 36px;
    height: 36px;
    line-height: 36px;
    text-align: center;
    background: #0052cc;
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    border-radius: 50%;
    box-shadow: 0 2px 10px rgba(0,82,204,0.45);
    z-index: 1;
}
.compare-table tbody tr td {
    padding: 18px 24px;
    border-bottom: 1px solid #eef1f8;
    vertical-align: middle;
}
.compare-table tbody tr:last-child td { border-bottom: none; }
.compare-table td.situation {
    font-weight: 700;
    color: #333;
    background: #fafbfd;
}
.compare-table td.general {
    color: #888;
    background: #fff;
    text-align: center;
    line-height: 1.6;
}
.compare-table td.wekeep {
    color: var(--main-color-dark);
    font-weight: 600;
    background: rgba(0,102,255,0.02);
    text-align: center;
    line-height: 1.6;
}
.compare-table tbody tr:hover td { background-color: rgba(0,102,255,0.1); }
.compare-table tbody tr:hover td.situation { background: rgba(0,102,255,0.1); }
.compare-table tbody tr:hover td.wekeep { background: rgba(0,102,255,0.1); }

/* ===== WPI SECTION ===== */
.wpi {
    padding: 100px 28px;
    background: #111827;
    position: relative;
    overflow: hidden;
}
.wpi::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0,102,255,0.4), transparent);
}
.wpi-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 900px;
    height: 500px;
    background: radial-gradient(ellipse, rgba(0,102,255,0.1) 0%, transparent 65%);
    pointer-events: none;
}
.wpi-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}
@media (max-width: 640px) { .wpi-cards { grid-template-columns: 1fr; } }
.wpi-card {
    border-radius: 20px;
    padding: 44px 32px;
    text-align: center;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.07);
    position: relative;
    overflow: hidden;
}
.wpi-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    border-radius: 3px 3px 0 0;
}
.wpi-card.blue-card::before { background: linear-gradient(90deg, var(--main-color), var(--main-color-cyan)); }
.wpi-card.green-card::before { background: linear-gradient(90deg, #22c55e, #4ade80); }
.wpi-card:hover {
    transform: translateY(-6px);
    background: rgba(255,255,255,0.05);
    box-shadow: 0 20px 48px rgba(0,0,0,0.3);
}
.wpi-num {
    font-size: clamp(36px, 4.5vw, 52px);
    font-weight: 900;
    line-height: 1;
    margin-bottom: 8px;
    letter-spacing: -0.04em;
}
.wpi-num.blue { color: #60a5ff; }
.wpi-num.green { color: #4ade80; }
.wpi-num .unit { font-size: 0.45em; vertical-align: super; }
.wpi-name {
    font-size: var(--fs-label-sub);
    font-weight: 700;
    color: #fff;
    margin-bottom: 8px;
}
.wpi-desc {
    font-size: var(--fs-desc-sub);
    color: #8B95A8;
    line-height: 1.65;
    margin-bottom: 16px;
}
.wpi-badge {
    display: inline-block;
    font-weight: 500;
    padding: 5px 14px;
    border-radius: 100px;
}
.wpi-badge.high { background: rgba(0,102,255,0.12); color: #60a5ff; }
.wpi-badge.low { background: rgba(34,197,94,0.1); color: #4ade80; }
.wpi-note {
    text-align: center;
    color: rgba(255,255,255,0.7);
    line-height: 1.8;
    padding: 20px 24px;
    background: rgba(255,255,255,0.02);
    border: 1px solid rgba(255,255,255,0.07);
    border-radius: 12px;
}
.wpi-note a { display:inline-block;font-size:1.25rem;color: var(--main-color-cyan); margin-top:0.5rem;font-weight: 700; }

/* ===== OS POSITION SECTION ===== */
.ospos {
    background: #fff;
}
.ospos-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}
@media (max-width: 900px) { .ospos-inner { grid-template-columns: 1fr; gap: 2rem; } }
.ospos-diagram {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.os-row {
    background: #F5F7FB;
    border: 1.5px solid #E2E8F4;
    border-radius: 14px;
    padding: 16px 22px;
    display: flex;
    align-items: center;
    gap: 16px;
    cursor: default;
}
.os-row:hover { border-color: rgba(0,102,255,0.3); background: rgba(0,102,255,0.02); }
.os-row.highlight {
    background: rgba(0,102,255,0.06);
    border-color: rgba(0,102,255,0.35);
    box-shadow: 0 4px 20px rgba(0,102,255,0.1);
}
.os-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: rgba(0,102,255,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 16px;
}
.os-row.highlight .os-icon {
    background: rgba(0,102,255,0.15);
}
.os-name {
    font-size: var(--fs-label-sub);
    font-weight: 700;
    min-width: 56px;
    flex-shrink: 0;
    color: #1a1f2e;
}
.os-name.accent { color: var(--main-color); }
.os-sep {
    width: 1px;
    height: 16px;
    background: #E2E8F4;
}
.os-desc {
    font-size:var(--fs-desc-sub);
    color: #666;
    flex: 1;
}
.os-here {
    margin-left: auto;
    font-size: 0.938rem;
    font-weight: 700;
    color: var(--main-color);
    background: rgba(0,102,255,0.08);
    border: 1px solid rgba(0,102,255,0.2);
    padding: 4px 12px;
    border-radius: 100px;
    white-space: nowrap;
    letter-spacing: 0.05em;
    flex-shrink: 0;
    animation: os-here-nudge 2s linear infinite;
}
.here-badge {
    display: inline-block;
    flex-shrink: 0;
    padding: 2px 10px;
    background: rgba(0,242,255,0.15);
    border: 1px solid rgba(0,242,255,0.45);
    border-radius: 100px;
    color: var(--main-color-cyan);
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    vertical-align: middle;
    animation: os-here-nudge 2s linear infinite;
}

/* ===== RELATED LINKS ===== */
.related {
    background: #EEF1F8;
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
@media (max-width: 768px) { .related-grid { grid-template-columns: 1fr; } }
.related-card {
    background: #fff;
    border: 1.5px solid #E2E8F4;
    border-radius: 16px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.related-card:hover {
    border-color: var(--main-color);
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0,102,255,0.12);
}
.related-card-img {
    padding: 16px 24px 0;
    flex-shrink: 0;
}
.related-card-img img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: 10px;
    display: block;
    transition: transform 0.4s ease;
}
.related-card:hover .related-card-img img {
    transform: scale(1.03);
}
.related-card-body {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 2.5rem 1.5rem;
}
.related-card-left {
    display: flex;
    align-items: center;
    gap: 16px;
}
.related-card-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(0,102,255,0.07);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background 0.3s ease;
}
.related-card:hover .related-card-icon {
    background: rgba(0,102,255,0.12);
}
.related-card-text h4 {
    font-size: 1rem;
    font-weight: 700;
    color: #1a1f2e;
    margin-bottom: 3px;
}
.related-card-text p {
    font-size: 0.875rem;
    color: #888;
}
.related-card-arrow {
    font-size: 18px;
    color: var(--main-color);
    opacity: 0.4;
    transition: opacity 0.3s ease, transform 0.3s ease;
    flex-shrink: 0;
}
.related-card:hover .related-card-arrow {
    opacity: 1;
    transform: translateX(4px);
}

/* ===== RESPONSIVE ===== */
/* 모바일 (768px 이하) */
@media (max-width: 768px) {
    .concept-cards { grid-template-columns: 1fr; }
    .aiwcs-inner { grid-template-columns: 1fr; }
    .ospos-inner { grid-template-columns: 1fr; }
    .concept-card h3 { font-size: 18px; }
    .concept-card .role { font-size: 14px; }
    .equip-head-text h3 { font-size: 17px; }
    .compare-table thead tr th { font-size: 13px; padding: 14px 12px; }
    .compare-table tbody tr td { font-size: 13px; padding: 12px; }
    .compare-table-wrap { overflow-x: auto; }
    .wpi-name { font-size: 15px; }
    .wpi-desc { font-size: 13px; }
    .flow-box h4 { font-size: 15px; }
    .flow-box p { font-size: 14px; }
    .os-name { font-size: 14px; }
    .os-desc { font-size: 13px; }
    .tl-content { padding: 1.5rem; }
    .equip-card { padding: 1.5rem; }
}

/* ===== COUNTER ANIMATION ===== */
.count-up { display: inline; }