:root {
    --navy: #15294d;
    --navy2: #1d3866;
    --blue: #2e6fd6;
    --blue2: #5b9bd5;
    --blue-soft: #e8f0fc;
    --bg: #eef2f8;
    --card: #ffffff;
    --line: #e1e7f0;
    --line2: #eef2f8;
    --text: #1a2233;
    --muted: #4a5d78;
    --success: #1f9d6b;
    --warn: #e08a2b;
    --danger: #d2473f;
    --shadow: 0 1px 3px rgba(20, 41, 77, .06), 0 6px 20px rgba(20, 41, 77, .06);
    --radius: 14px;
    /* Type scale — 확연한 가독성 상향 */
    --fs-xs: 14px;
    --fs-sm: 15.5px;
    --fs-base: 18px;
    --fs-md: 17.5px;
    --fs-lg: 20px;
    --fs-xl: 24px;
    --fs-2xl: 32px;
    --fs-3xl: 40px;
    --lh-tight: 1.25;
    --lh-body: 1.7;
    --lh-loose: 1.8;
    --tracking-tight: -.02em;
}

* {
    box-sizing: border-box
}

html,
body {
    margin: 0;
    padding: 0
}

body {
    font-family: 'Pretendard', 'Apple SD Gothic Neo', 'Malgun Gothic', -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: var(--fs-base);
    line-height: var(--lh-body);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility
}

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

button {
    font-family: inherit;
    cursor: pointer
}

code {
    font-family: 'SFMono-Regular', Consolas, monospace;
    font-size: var(--fs-xs);
    background: #eef1f6;
    padding: 2px 7px;
    border-radius: 5px;
    color: var(--navy)
}

/* ================= HEADER (2 tiers) ================= */
.site-header {
    position: sticky;
    top: 0;
    z-index: 60;
    background: var(--card);
    box-shadow: 0 1px 0 var(--line), 0 6px 22px rgba(20, 41, 77, .06)
}

.tier-in {
    position: relative;
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    padding: 0 24px
}

/* group label (far left of each tier) — makes the 2 groups explicit */
.group-tag {
    flex-shrink: 0;
    font-size: var(--fs-sm);
    font-weight: 800;
    letter-spacing: .05em;
    color: var(--muted);
    padding: 6px 14px;
    border: 1px solid var(--line);
    border-radius: 7px;
    margin-right: 18px;
    text-transform: uppercase
}

.group-tag.accent {
    color: var(--blue);
    border-color: #cfe0fb;
    background: var(--blue-soft)
}

/* logo */
.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
    margin-right: 24px;
    cursor: pointer
}

.logo .logo-mark {
    border-radius: 11px;
    box-shadow: 0 3px 9px rgba(20, 41, 77, .20);
    flex-shrink: 0
}

.logo .logo-txt b {
    display: block;
    font-size: var(--fs-xl);
    letter-spacing: -.6px;
    color: var(--navy);
    line-height: 1;
    font-weight: 800
}

.logo .logo-txt small {
    display: block;
    font-size: 12px;
    color: var(--muted);
    font-weight: 600;
    letter-spacing: .13em;
    margin-top: 3px
}

/* ----- Tier 1 : 플랫폼 (비기능성) ----- */
.tier-info {
    border-bottom: 1px solid var(--line2);
    background: #f7f9fc
}

.tier-info .tier-in {
    height: 60px
}

.nav-info {
    display: flex;
    align-items: stretch;
    height: 100%;
    gap: 2px
}

.info-item {
    position: relative;
    display: flex;
    align-items: center
}

.info-link {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    height: 100%;
    border: none;
    background: none;
    padding: 0 14px;
    font-weight: 600;
    font-size: var(--fs-md);
    color: #3a455c;
    letter-spacing: -.2px
}

.info-link .ic {
    font-size: var(--fs-lg);
    opacity: .85
}

.info-link .cv {
    font-size: var(--fs-xs);
    color: var(--muted)
}

.info-item:hover .info-link {
    color: var(--navy)
}

.tier-right {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 2px;
    font-size: var(--fs-sm)
}

.tier-right a {
    padding: 6px 11px;
    border-radius: 6px;
    color: var(--muted);
    font-weight: 600;
    transition: .12s
}

.tier-right a:hover {
    background: #eef2f8;
    color: var(--navy)
}

.tier-right .lang {
    color: var(--navy)
}

.tier-right .reg {
    background: var(--navy);
    color: #fff
}

.tier-right .reg:hover {
    background: var(--navy2);
    color: #fff
}

/* compact dropdown for tier1 */
.drop {
    position: absolute;
    top: 100%;
    left: 0;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 13px;
    box-shadow: 0 16px 36px rgba(20, 41, 77, .16);
    padding: 16px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    transition: .15s;
    z-index: 65
}

.info-item:hover .drop,
.info-item:focus-within .drop {
    opacity: 1;
    visibility: visible;
    transform: translateY(0)
}

.drop.wide {
    display: grid;
    grid-template-columns: repeat(3, minmax(170px, 1fr));
    gap: 8px 16px
}

.drop-grp {
    margin-bottom: 10px
}

.drop-grp:last-child {
    margin-bottom: 0
}

.drop-grp .gt {
    font-size: var(--fs-xs);
    font-weight: 800;
    color: var(--muted);
    letter-spacing: .05em;
    text-transform: uppercase;
    padding: 0 8px 6px
}

.drop a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 10px;
    border-radius: 8px;
    font-size: var(--fs-sm);
    color: var(--text);
    white-space: nowrap;
    font-weight: 500
}

.drop a .di {
    width: 28px;
    height: 28px;
    border-radius: 7px;
    background: var(--blue-soft);
    color: var(--blue);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--fs-xs);
    flex-shrink: 0
}

.drop a:hover {
    background: var(--blue-soft);
    color: var(--blue)
}

/* ----- Tier 2 : AI 서비스 (기능성) ----- */
.tier-svc .tier-in {
    height: 70px
}

.mega {
    display: flex;
    align-items: stretch;
    gap: 0;
    height: 100%;
    flex: 1
}

.nav-item {
    display: flex;
    align-items: center
}

.nav-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    height: 100%;
    border: none;
    background: none;
    padding: 0 13px;
    font-weight: 600;
    font-size: var(--fs-md);
    color: var(--text);
    position: relative;
    letter-spacing: -.3px;
    white-space: nowrap
}

.nav-link .nav-ic {
    width: 26px;
    height: 26px;
    border-radius: 7px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--fs-sm);
    flex-shrink: 0
}

.nav-link .nav-caret {
    font-size: var(--fs-xs);
    color: var(--muted);
    transition: .15s;
    margin-left: -1px
}

.nav-link .nav-badge {
    font-size: 11px;
    font-weight: 800;
    background: #e2f7f5;
    color: #0d9488;
    padding: 2px 7px;
    border-radius: 20px;
    letter-spacing: .02em
}

.nav-link:after {
    content: "";
    position: absolute;
    left: 12px;
    right: 12px;
    bottom: 0;
    height: 3px;
    border-radius: 3px 3px 0 0;
    background: var(--ac, var(--blue));
    transform: scaleX(0);
    transition: transform .18s
}

.nav-item:hover .nav-link:after,
.nav-item:focus-within .nav-link:after {
    transform: scaleX(1)
}

.nav-item:hover .nav-link .nav-caret {
    transform: rotate(180deg)
}

.nav-link.active {
    color: var(--ac, var(--blue))
}

.nav-link.active:after {
    transform: scaleX(1)
}

.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--blue);
    color: #fff;
    border: none;
    padding: 11px 20px;
    border-radius: 9px;
    font-weight: 700;
    font-size: var(--fs-sm);
    flex-shrink: 0;
    margin-left: 14px;
    transition: .12s
}

.nav-cta:hover {
    background: #255fbb
}

/* ===== mega panel (full width, with infographic) ===== */
.mega-panel {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    background: var(--card);
    border-top: 3px solid var(--ac, var(--blue));
    box-shadow: 0 20px 42px rgba(20, 41, 77, .16);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity .16s, transform .16s, visibility .16s;
    z-index: 55
}

.nav-item:hover .mega-panel,
.nav-item:focus-within .mega-panel {
    opacity: 1;
    visibility: visible;
    transform: translateY(0)
}

.mega-inner {
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 236px 1fr 286px;
    gap: 30px;
    padding: 28px 24px 30px;
    align-items: start
}

.mega-rail {
    border-right: 1px solid var(--line2);
    padding-right: 26px
}

.mega-railic {
    width: 52px;
    height: 52px;
    border-radius: 13px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    margin-bottom: 14px
}

.mega-rail h4 {
    margin: 0 0 8px;
    font-size: var(--fs-lg);
    letter-spacing: -.3px;
    color: var(--navy)
}

.mega-rail p {
    margin: 0 0 16px;
    color: var(--muted);
    font-size: var(--fs-sm);
    line-height: var(--lh-body)
}

.mega-all {
    border: 1px solid var(--line);
    background: #fff;
    color: var(--ac, var(--blue));
    font-weight: 700;
    font-size: var(--fs-sm);
    padding: 10px 16px;
    border-radius: 8px;
    transition: .12s
}

.mega-all:hover {
    background: #f6f9ff
}

.mega-cols {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 6px 22px;
    align-content: start
}

.mega-col {
    min-width: 0
}

.mega-coltitle {
    font-size: var(--fs-xs);
    font-weight: 800;
    color: var(--muted);
    letter-spacing: .05em;
    text-transform: uppercase;
    padding: 2px 10px 8px;
    border-bottom: 1px solid var(--line2);
    margin-bottom: 4px
}

.mega-link {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px 10px;
    border-radius: 9px;
    transition: .1s;
    cursor: pointer
}

.mega-link .li {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--fs-sm);
    flex-shrink: 0;
    margin-top: 1px
}

.mega-link .lt b {
    display: block;
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--text);
    line-height: 1.35
}

.mega-link .lt span {
    display: block;
    font-size: var(--fs-xs);
    color: var(--muted);
    margin-top: 2px
}

.mega-link:hover {
    background: #f4f7fd
}

.mega-link:hover .lt b {
    color: var(--ac, var(--blue))
}

/* infographic card */
.mega-viz {
    background: linear-gradient(160deg, #fbfcfe, #f2f6fc);
    border: 1px solid var(--line2);
    border-radius: 14px;
    padding: 16px 16px 14px
}

.mega-viz .vt {
    font-size: var(--fs-xs);
    font-weight: 800;
    letter-spacing: .04em;
    color: var(--muted);
    text-transform: uppercase;
    margin-bottom: 13px
}

.mega-viz .vcap {
    font-size: var(--fs-xs);
    color: var(--muted);
    margin-top: 12px;
    line-height: var(--lh-body)
}

.vz-pipe {
    display: flex;
    align-items: center;
    gap: 5px
}

.vz-node {
    flex: 1;
    min-width: 0;
    text-align: center;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 9px;
    padding: 10px 3px;
    font-size: var(--fs-xs);
    font-weight: 600;
    color: var(--navy)
}

.vz-node .e {
    display: block;
    font-size: var(--fs-lg);
    margin-bottom: 3px
}

.vz-arrow {
    color: var(--blue2);
    font-weight: 800;
    flex-shrink: 0;
    font-size: var(--fs-sm)
}

.vz-stat b {
    font-size: 34px;
    color: var(--navy);
    letter-spacing: -.6px;
    line-height: 1
}

.vz-stat .u {
    font-size: var(--fs-sm);
    color: var(--muted);
    font-weight: 600;
    margin-left: 3px
}

.vz-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-top: 13px
}

.vz-chips span {
    font-size: var(--fs-xs);
    font-weight: 600;
    background: #fff;
    border: 1px solid var(--line);
    color: var(--navy);
    padding: 5px 10px;
    border-radius: 20px
}

.vz-pkg {
    border: 2px dashed var(--blue2);
    border-radius: 11px;
    padding: 11px 10px 10px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    position: relative
}

.vz-pkg .lay {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 7px;
    padding: 8px 10px;
    font-size: var(--fs-xs);
    font-weight: 600;
    color: var(--navy);
    display: flex;
    align-items: center;
    gap: 8px
}

.vz-pkg .lay i {
    width: 7px;
    height: 7px;
    border-radius: 2px;
    background: #6b4fd0
}

.vz-pkg .exe {
    position: absolute;
    right: -7px;
    top: -11px;
    background: #6b4fd0;
    color: #fff;
    font-size: 12px;
    font-weight: 800;
    padding: 3px 8px;
    border-radius: 6px;
    box-shadow: 0 4px 10px rgba(107, 79, 208, .4)
}

.vz-ba .lab {
    font-size: var(--fs-xs);
    font-weight: 600;
    color: var(--navy);
    margin-bottom: 6px
}

.vz-ba .blk {
    margin-bottom: 13px
}

.vz-ba .blk:last-child {
    margin-bottom: 0
}

.vz-bar {
    display: flex;
    align-items: center;
    gap: 7px;
    font-size: var(--fs-xs);
    color: var(--muted);
    margin-bottom: 5px
}

.vz-bar .tg {
    width: 34px;
    flex-shrink: 0
}

.vz-bar .bb {
    height: 9px;
    border-radius: 5px
}

.vz-bar .vn {
    font-weight: 700;
    color: var(--navy);
    font-variant-numeric: tabular-nums
}

/* hamburger + mobile drawer */
.burger {
    display: none;
    margin-left: auto;
    border: 1px solid var(--line);
    background: #fff;
    border-radius: 9px;
    width: 44px;
    height: 40px;
    font-size: 20px;
    color: var(--navy);
    position: relative;
    /* z-index를 먹이기 위해 추가 */
    z-index: 100;
    /* 추가 */
}

.mob {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 80
}

.mob-back {
    position: absolute;
    inset: 0;
    background: rgba(20, 41, 77, .45)
}

.mob-drawer {
    position: absolute;
    top: 0;
    right: 0;
    width: min(380px, 90vw);
    height: 100%;
    background: #fff;
    overflow: auto;
    padding: 18px 16px 40px;
    box-shadow: -10px 0 40px rgba(0, 0, 0, .2)
}

body.mob-open .mob {
    display: block
}

.mob-x {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px
}

.mob-x b {
    font-size: var(--fs-lg);
    color: var(--navy)
}

.mob-x button {
    border: none;
    background: none;
    font-size: 26px;
    color: var(--muted)
}

.mob-grouphd {
    font-size: var(--fs-xs);
    font-weight: 800;
    letter-spacing: .06em;
    color: var(--muted);
    text-transform: uppercase;
    padding: 16px 6px 8px;
    margin-top: 8px;
    border-top: 1px solid var(--line2)
}

.mob-grouphd:first-of-type {
    border-top: none;
    margin-top: 0
}

.mob-item {
    border-bottom: 1px solid var(--line2)
}

.mob-head {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: none;
    border: none;
    padding: 14px 6px;
    font-weight: 600;
    font-size: var(--fs-md);
    color: var(--text)
}

.mob-head .mob-arr {
    color: var(--muted);
    font-weight: 800;
    font-size: 20px;
    transition: .15s
}

.mob-item.open .mob-head .mob-arr {
    transform: rotate(45deg)
}

.mob-sub {
    display: none;
    padding: 0 6px 12px
}

.mob-item.open .mob-sub {
    display: block
}

.mob-sub a {
    display: block;
    padding: 10px 12px;
    border-radius: 8px;
    color: var(--muted);
    font-size: var(--fs-sm)
}

.mob-sub a:hover {
    background: var(--blue-soft);
    color: var(--blue)
}

.mob-sub a.mob-go {
    color: var(--blue);
    font-weight: 700
}

/* ================= MAIN ================= */
.crumbbar {
    background: #fff;
    border-bottom: 1px solid var(--line)
}

.crumbbar .in {
    max-width: 1180px;
    margin: 0 auto;
    padding: 13px 24px;
    font-size: var(--fs-sm);
    color: var(--muted);
    font-weight: 500
}

.crumbbar b {
    color: var(--text)
}

.content {
    padding: 32px 24px 64px;
    max-width: 1180px;
    width: 100%;
    margin: 0 auto
}

/* buttons & chips */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1px solid var(--line);
    background: #fff;
    color: var(--text);
    padding: 12px 20px;
    border-radius: 9px;
    font-weight: 600;
    font-size: var(--fs-sm);
    transition: .12s
}

.btn:hover {
    border-color: var(--blue2);
    color: var(--blue)
}

.btn.primary {
    background: var(--blue);
    border-color: var(--blue);
    color: #fff
}

.btn.primary:hover {
    background: #255fbb;
    color: #fff
}

.btn.ghost {
    background: transparent;
    border-color: transparent;
    color: var(--muted)
}

.btn.ghost:hover {
    background: var(--line2);
    color: var(--text)
}

.btn:disabled {
    opacity: .45;
    cursor: not-allowed
}

.btn.sm {
    padding: 8px 14px;
    font-size: var(--fs-xs)
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: var(--fs-xs);
    font-weight: 600;
    background: var(--blue-soft);
    color: var(--blue)
}

.chip.green {
    background: #e3f5ec;
    color: var(--success)
}

.chip.amber {
    background: #fbf0df;
    color: var(--warn)
}

.chip.grey {
    background: #eef1f6;
    color: var(--muted)
}

.pill {
    font-size: var(--fs-xs);
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 6px;
    background: var(--blue-soft);
    color: var(--blue)
}

/* cards */
.card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow)
}

.pad {
    padding: 24px
}

h1.page {
    font-size: var(--fs-2xl);
    margin: 0 0 6px;
    letter-spacing: var(--tracking-tight);
    font-weight: 800;
    line-height: var(--lh-tight);
    color: var(--navy)
}

.sub {
    color: var(--muted);
    margin: 0 0 24px;
    font-size: var(--fs-md);
    line-height: var(--lh-loose)
}

h3.sec {
    font-size: var(--fs-lg);
    margin: 0 0 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    color: var(--navy)
}

h3.sec .num {
    width: 26px;
    height: 26px;
    border-radius: 7px;
    background: var(--navy);
    color: #fff;
    font-size: var(--fs-xs);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700
}

/* home */
.hero {
    background: linear-gradient(120deg, #15294d, #2e6fd6);
    color: #fff;
    border-radius: 18px;
    padding: 40px;
    margin-bottom: 24px;
    position: relative;
    overflow: hidden
}

.hero:after {
    content: "";
    position: absolute;
    right: -50px;
    top: -50px;
    width: 260px;
    height: 260px;
    background: radial-gradient(circle, rgba(255, 255, 255, .16), transparent 70%)
}

.hero .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    background: rgba(255, 255, 255, .14);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: var(--fs-xs);
    font-weight: 600;
    margin-bottom: 16px
}

.hero h2 {
    margin: 0 0 12px;
    font-size: var(--fs-2xl);
    letter-spacing: -.5px;
    line-height: 1.28;
    max-width: 640px;
    font-weight: 800
}

.hero p {
    margin: 0;
    opacity: .9;
    max-width: 660px;
    font-size: var(--fs-md);
    line-height: var(--lh-loose)
}

.stats {
    display: flex;
    gap: 32px;
    margin-top: 24px;
    flex-wrap: wrap
}

.stats div b {
    font-size: 28px;
    display: block
}

.stats div span {
    font-size: var(--fs-sm);
    opacity: .85
}

.fields {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 24px
}

.field-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 13px;
    padding: 20px;
    position: relative;
    overflow: hidden
}

.field-card .em {
    font-size: 28px;
    display: block;
    margin-bottom: 10px
}

.field-card b {
    font-size: var(--fs-md)
}

.field-card p {
    margin: 6px 0 0;
    color: var(--muted);
    font-size: var(--fs-sm);
    line-height: var(--lh-body)
}

.field-card .edge {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px
}

.grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px
}

.svc-card {
    cursor: pointer;
    transition: .15s;
    position: relative;
    overflow: hidden
}

.svc-card:hover {
    transform: translateY(-3px);
    border-color: var(--blue2);
    box-shadow: 0 10px 30px rgba(20, 41, 77, .12)
}

.svc-card .ico {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 14px
}

.svc-card h4 {
    margin: 0 0 8px;
    font-size: var(--fs-lg)
}

.svc-card p {
    margin: 0 0 14px;
    color: var(--muted);
    font-size: var(--fs-sm);
    min-height: 42px;
    line-height: var(--lh-body)
}

.svc-card .tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px
}

.svc-card .go {
    position: absolute;
    right: 20px;
    bottom: 20px;
    color: var(--blue);
    font-weight: 700;
    font-size: var(--fs-sm)
}

.levels {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px
}

.lvl {
    border: 1px solid var(--line);
    border-radius: 13px;
    padding: 22px;
    background: #fff;
    position: relative
}

.lvl .tag {
    font-size: var(--fs-xs);
    font-weight: 800;
    letter-spacing: .05em;
    color: var(--blue);
    background: var(--blue-soft);
    display: inline-block;
    padding: 4px 12px;
    border-radius: 6px;
    margin-bottom: 12px
}

.lvl h4 {
    margin: 0 0 8px;
    font-size: var(--fs-md);
    font-weight: 700
}

.lvl p {
    margin: 0;
    color: var(--muted);
    font-size: var(--fs-sm);
    line-height: var(--lh-body)
}

.partners {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 14px
}

.partners .p {
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--navy);
    background: #f3f6fb;
    border: 1px solid var(--line);
    padding: 8px 14px;
    border-radius: 8px
}

.partners .p small {
    color: var(--muted);
    font-weight: 500
}

/* stepper */
.stepper {
    display: flex;
    align-items: center;
    margin: 0 0 28px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 16px 20px;
    box-shadow: var(--shadow);
    overflow: auto
}

.stepper .st {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0
}

.stepper .st .dot {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: #eef1f6;
    color: var(--muted);
    font-weight: 700;
    font-size: var(--fs-xs);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid transparent
}

.stepper .st .lbl {
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--muted);
    white-space: nowrap
}

.stepper .st.active .dot {
    background: var(--blue);
    color: #fff
}

.stepper .st.active .lbl {
    color: var(--text)
}

.stepper .st.done .dot {
    background: var(--success);
    color: #fff
}

.stepper .st.done .lbl {
    color: var(--text)
}

.stepper .bar {
    flex: 1;
    height: 2px;
    background: var(--line);
    margin: 0 12px;
    min-width: 24px
}

.stepper .bar.done {
    background: var(--success)
}

.step {
    display: none;
    animation: fade .25s
}

.step.show {
    display: block
}

@keyframes fade {
    from {
        opacity: 0;
        transform: translateY(6px)
    }

    to {
        opacity: 1;
        transform: none
    }
}

.flow-actions {
    display: flex;
    justify-content: space-between;
    margin-top: 24px
}

/* forms */
label.f {
    display: block;
    font-weight: 600;
    font-size: var(--fs-sm);
    margin: 0 0 7px
}

.hint {
    color: var(--muted);
    font-size: var(--fs-xs);
    margin-top: 6px;
    line-height: var(--lh-body)
}

input[type=text],
input[type=number],
select,
textarea {
    border-radius: 9px;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--blue);
    box-shadow: 0 0 0 3px rgba(46, 111, 214, .12)
}

.row {
    display: grid;
    gap: 16px
}

.row.c2 {
    grid-template-columns: 1fr 1fr
}

.row.c3 {
    grid-template-columns: 1fr 1fr 1fr
}

.field {
    margin-bottom: 16px
}

.dropzone {
    border: 2px dashed var(--blue2);
    border-radius: 12px;
    padding: 32px;
    text-align: center;
    color: var(--muted);
    background: var(--blue-soft);
    cursor: pointer;
    transition: .12s;
    font-size: var(--fs-sm)
}

.dropzone:hover {
    background: #dde9fb
}

.dropzone .big {
    font-size: 40px
}

/* table */
table.tbl {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--fs-sm)
}

table.tbl th {
    text-align: left;
    color: var(--muted);
    font-weight: 600;
    padding: 12px 14px;
    border-bottom: 2px solid var(--line);
    font-size: var(--fs-xs);
    background: #fafbfd
}

table.tbl td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--line2)
}

table.tbl tr:hover td {
    background: #fafcff
}

.best {
    background: #eafaf2 !important
}

.barcell {
    position: relative
}

.barcell .b {
    height: 7px;
    border-radius: 4px;
    background: var(--blue);
    display: inline-block;
    vertical-align: middle
}

/* sliders */
.slider-row {
    display: grid;
    grid-template-columns: 170px 1fr 72px;
    align-items: center;
    gap: 14px;
    padding: 12px 0;
    border-bottom: 1px solid var(--line2)
}

.slider-row .nm {
    font-weight: 600;
    font-size: var(--fs-sm)
}

.slider-row .nm small {
    display: block;
    color: var(--muted);
    font-weight: 500;
    font-size: var(--fs-xs)
}

input[type=range] {
    width: 100%;
    accent-color: var(--blue)
}

.val {
    text-align: right;
    font-weight: 700;
    color: var(--blue);
    font-variant-numeric: tabular-nums;
    font-size: var(--fs-sm)
}

/* metrics */
.metric {
    display: flex;
    gap: 18px;
    flex-wrap: wrap
}

.metric .m {
    flex: 1;
    min-width: 150px;
    background: #fafbfd;
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 18px
}

.metric .m b {
    font-size: 30px;
    display: block;
    color: var(--navy)
}

.metric .m span {
    color: var(--muted);
    font-size: var(--fs-sm)
}

.progress {
    height: 10px;
    background: var(--line);
    border-radius: 6px;
    overflow: hidden
}

.progress>i {
    display: block;
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--blue), var(--blue2));
    transition: width .3s
}

/* tree */
.tree {
    font-family: 'SFMono-Regular', Consolas, monospace;
    font-size: var(--fs-sm);
    line-height: 1.9;
    background: #0f1d36;
    color: #cdd9ef;
    border-radius: 12px;
    padding: 18px 20px;
    white-space: pre-wrap
}

.tree .d {
    color: #86b3ff;
    font-weight: 600
}

.tree .f {
    color: #cdd9ef
}

.tree .t {
    color: #6f86ab
}

.tree .meta {
    color: #5f7aa6
}

.alert {
    display: flex;
    gap: 12px;
    padding: 16px 18px;
    border-radius: 11px;
    background: var(--blue-soft);
    border: 1px solid #cfe0fb;
    font-size: var(--fs-lg);
    line-height: var(--lh-body)
}

.alert.green {
    background: #e6f7ef;
    border-color: #bfe9d4
}

.alert .i {
    font-size: 22px
}

.tabs {
    display: flex;
    gap: 4px;
    border-bottom: 1px solid var(--line);
    margin-bottom: 18px
}

.tabs button {
    background: none;
    border: none;
    padding: 12px 18px;
    font-weight: 600;
    color: var(--muted);
    border-bottom: 2px solid transparent;
    font-size: var(--fs-sm)
}

.tabs button.on {
    color: var(--blue);
    border-color: var(--blue)
}

.empty {
    display: none
}

.spin {
    display: inline-block;
    width: 15px;
    height: 15px;
    border: 2px solid rgba(255, 255, 255, .5);
    border-top-color: #fff;
    border-radius: 50%;
    animation: sp .7s linear infinite
}

@keyframes sp {
    to {
        transform: rotate(360deg)
    }
}

.note {
    font-size: var(--fs-sm);
    color: var(--muted);
    background: #fafbfd;
    border: 1px dashed var(--line);
    border-radius: 9px;
    padding: 12px 14px;
    line-height: var(--lh-body)
}

.kv {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 10px 14px;
    font-size: var(--fs-sm)
}

.kv .k {
    color: var(--muted)
}

.legend {
    display: flex;
    gap: 16px;
    font-size: var(--fs-sm);
    color: var(--muted);
    margin-top: 8px
}

.legend i {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 3px;
    margin-right: 6px;
    vertical-align: middle
}

.ver-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    border: 1px solid var(--line);
    border-radius: 10px;
    margin-bottom: 8px;
    font-size: var(--fs-sm)
}

.ver-row.cur {
    border-color: var(--blue);
    background: var(--blue-soft)
}

/* footer */
footer,
.site-footer {
    background: #1a2233;
    color: #9fb0cd;
    margin-top: 30px
}

.foot-in {
    max-width: 1180px;
    margin: 0 auto;
    padding: 28px 24px 32px
}

.foot-links {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 16px;
    font-size: var(--fs-sm)
}

.foot-links a {
    color: #cdd9ef;
    font-weight: 600
}

.foot-links a:hover {
    color: #fff
}

.foot-in p {
    margin: 4px 0;
    font-size: var(--fs-xs);
    line-height: 1.7;
    color: #9fb0cd
}

.foot-in p a {
    color: inherit
}

@media(max-width:1024px) {
    body {
        font-size: 17px
    }

    .tier-svc {
        display: none
    }

    .nav-info,
    .mega,
    .tier-right,
    .group-tag {
        display: none
    }

    .burger {
        display: block !important;
    }

    html body #header .burger {
        display: flex !important;
        visibility: visible !important;
        opacity: 1 !important;
        width: 40px !important;
        height: 40px !important;
        align-items: center;
        justify-content: center;
        margin-left: auto;
        z-index: 9999 !important;
        position: relative !important;
    }

    html body #header .burger-icon {
        display: flex !important;
        flex-direction: column;
        justify-content: center;
        gap: 5px;
        width: 24px;
    }

    html body #header .burger-icon span {
        display: block !important;
        height: 2px;
        width: 100%;
        background: #1a2233;
        border-radius: 1px;

        .tier-info .tier-in {
            height: 62px
        }

        .logo .logo-mark {
            width: 42px;
            height: 42px
        }

        .fields,
        .levels {
            grid-template-columns: repeat(2, 1fr)
        }

        .grid,
        .row.c2,
        .row.c3 {
            grid-template-columns: 1fr
        }

        h1.page {
            font-size: 28px
        }
    }

    @media(max-width:560px) {
        body {
            font-size: 16px
        }

        .fields,
        .levels {
            grid-template-columns: 1fr
        }

        .foot-in p {
            white-space: normal
        }
    }


    #footer {
        /* 배경색·폰트는 기존 .site-footer 규칙 값을 그대로 복사해 넣으세요 */
        /* 예: background-color: #기존값; font-family: 기존값; color: 기존값; */
        background: #1a2233;
        color: #9fb0cd;
        width: 100%;
        padding: 24px 0;
    }

    #footer .link {
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    #footer .link .wrap {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px 16px;
        display: flex;
        justify-content: flex-start;
        align-items: center;
    }

    #footer .link ul {
        display: flex;
        list-style: none;
        margin: 0;
        padding: 0;
        gap: 24px;
    }

    #footer .link ul li a,
    #footer .link ul li button {
        background: none;
        border: none;
        padding: 0;
        cursor: pointer;
        font: inherit;
        color: inherit;
        text-decoration: none;
    }

    #footer .link ul li a:hover,
    #footer .link ul li button:hover {
        text-decoration: underline;
    }

    #footer .info .wrap {
        max-width: 1200px;
        margin: 0 auto;
        padding: 16px 20px 0;
        display: flex;
        align-items: center;
        gap: 24px;
        flex-wrap: wrap;
    }

    #footer .info-logo img {
        height: 40px;
        width: auto;
        display: block;
    }

    #footer .info p {
        margin: 0;
        line-height: 1.6;
        flex: 1;
                text-align: left;
                
    }

    #footer .info p a {
        color: inherit;
        text-decoration: none;
    }

    /* 모바일 반응형 */
    @media (max-width: 768px) {
        #footer .link .wrap {
            justify-content: center;
        }

        #footer .link ul {
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
        }

        #footer .info .wrap {
            flex-direction: column;
            text-align: center;
            gap: 12px;
        }
    }