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

html {
    scroll-behavior: smooth;
}

body {
    font-family: Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: #111827;
    background: #ffffff;
    line-height: 1.6;
    word-break: keep-all;
}

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

img {
    display: block;
    width: 100%;
}

.b2b-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 999;
    background: rgba(8, 16, 32, 0.42);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(255,255,255,0.12);
    transition: 0.35s ease;
}

.b2b-header.scrolled {
    background: rgba(8, 16, 32, 0.92);
    box-shadow: 0 16px 48px rgba(0,0,0,0.2);
}

.b2b-header-inner {
    max-width: 1480px;
    height: 82px;
    margin: 0 auto;
    padding: 0 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.b2b-logo {
    display: flex;
    align-items: center;
}

.b2b-logo img {
    height: 27px;
    width: auto;
    display: block;
    transition: 0.3s ease;
}

.b2b-logo span {
    margin-left: 4px;
    color: #5ed7ff;
}

.b2b-nav {
    display: flex;
    align-items: center;
    gap: 42px;
}

.b2b-nav a {
    color: rgba(255,255,255,0.84);
    font-size: 15px;
    font-weight: 700;
    transition: 0.3s ease;
}

.b2b-nav a:hover {
    color: #5ed7ff;
}

.b2b-menu-btn {
    display: none;
    width: 34px;
    border: 0;
    background: none;
    cursor: pointer;
}

.b2b-menu-btn span {
    display: block;
    width: 100%;
    height: 2px;
    margin: 7px 0;
    background: #fff;
    transition: 0.3s ease;
}

.b2b-hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    color: #fff;
}

.b2b-hero-bg,
.b2b-hero-dim {
    position: absolute;
    inset: 0;
}

.b2b-hero-bg img {
    height: 100%;
    object-fit: cover;
    animation: heroZoom 9s ease forwards;
}

.b2b-hero-dim {
    background:
            radial-gradient(circle at 72% 38%, rgba(0,184,255,0.16), transparent 34%),
            linear-gradient(90deg, rgba(3,12,28,0.72) 0%, rgba(3,12,28,0.45) 45%, rgba(3,12,28,0.08) 100%),
            linear-gradient(180deg, rgba(3,12,28,0.05) 0%, rgba(3,12,28,0.58) 100%);
}

.b2b-hero-content {
    position: relative;
    z-index: 2;
    max-width: 1480px;
    width: 100%;
    margin: 0 auto;
    padding: 160px 48px 120px;
}

.b2b-label {
    margin-bottom: 18px;
    color: #5ed7ff;
    font-size: 13px;
    font-weight: 900;
    letter-spacing: 0.18em;
}

.b2b-label.dark {
    color: #1268e8;
}

.b2b-hero h1 {
    max-width: 980px;
    font-size: clamp(44px, 6.8vw, 72px);
    line-height: 1.15;
    letter-spacing: -0.035em;
    font-weight: 800;
}

.b2b-hero-text {
    max-width: 720px;
    margin-top: 30px;
    color: rgba(255,255,255,0.76);
    font-size: 20px;
}

.b2b-hero-buttons {
    margin-top: 48px;
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.b2b-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 170px;
    height: 56px;
    padding: 0 30px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 900;
    transition: 0.35s ease;
}

.b2b-btn-primary {
    color: #fff;
    background: linear-gradient(135deg, #1667ff, #00b8ff);
    box-shadow: 0 18px 45px rgba(0,118,255,0.36);
}

.b2b-btn-primary:hover {
    transform: translateY(-5px);
    box-shadow: 0 28px 70px rgba(0,118,255,0.48);
}

.b2b-btn-line {
    color: #fff;
    border: 1px solid rgba(255,255,255,0.36);
    background: rgba(255,255,255,0.08);
}

.b2b-btn-line:hover {
    background: rgba(255,255,255,0.18);
    transform: translateY(-5px);
}

.b2b-hero-card {
    position: absolute;
    right: 60px;
    bottom: 64px;
    z-index: 3;
    width: 410px;
    padding: 30px;
    border-radius: 30px;
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.2);
    backdrop-filter: blur(20px);
    color: #fff;
}

.b2b-hero-card p {
    margin-bottom: 10px;
    color: #5ed7ff;
    font-size: 13px;
    font-weight: 900;
    letter-spacing: 0.12em;
}

.b2b-hero-card strong {
    font-size: 20px;
}

.b2b-section {
    max-width: 1480px;
    margin: 0 auto;
    padding: 140px 48px;
}

.b2b-section-title {
    max-width: 840px;
    margin-bottom: 68px;
}

.b2b-section-title.center {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

.b2b-section-title.white {
    color: #fff;
}
.b2b-section-title h2,
.b2b-model-text h2,
.b2b-cta-content h2 {
    font-size: clamp(34px, 4.4vw, 49px);
    line-height: 1.15;
    letter-spacing: -0.03em;
    font-weight: 700;
}

/* =========================
   MODEL VIDEO / IMAGE
========================= */

.b2b-model-img {
    position: relative;
    width: 100%;
    border-radius: 40px;
    overflow: hidden;
    background: #f6f8fb;
    box-shadow: 0 36px 90px rgba(15,23,42,0.16);
}

.b2b-model-img img,
.b2b-model-img video {
    display: block;
    width: 100%;
    height: 660px;
    object-fit: cover;
    object-position: center center;
    transition:
            opacity 0.45s ease,
            transform 0.6s ease;
}

.b2b-model-img img.fade-out,
.b2b-model-img video.fade-out {
    opacity: 0;
    transform: scale(1.03);
}

.b2b-model-img:hover img,
.b2b-model-img:hover video {
    transform: scale(1.04);
}

#modelMainImage {
    display: none;
}

/* =========================
   TEXT
========================= */

.b2b-section-title p:not(.b2b-label),
.b2b-model-text p,
.b2b-cta-content p {
    margin-top: 22px;
    color: #667085;
    font-size: 18px;
    letter-spacing: -0.5px;
}

.b2b-section-title.white p:not(.b2b-label) {
    color: rgba(255,255,255,0.74);
}

/* =========================
   INTRO CARD
========================= */

.b2b-card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 26px;
}

.b2b-info-card {
    position: relative;
    min-height: 310px;
    padding: 40px;
    border-radius: 34px;
    background: #f6f8fb;
    border: 1px solid #edf0f5;
    overflow: hidden;
    transition: 0.38s ease;
}

.b2b-info-card::after {
    content: "";
    position: absolute;
    right: -70px;
    bottom: -70px;
    width: 170px;
    height: 170px;
    border-radius: 50%;
    background: rgba(18,104,232,0.08);
    transition: 0.45s ease;
}

.b2b-info-card:hover {
    transform: translateY(-12px);
    background: #fff;
    box-shadow: 0 30px 80px rgba(15,23,42,0.12);
}

.b2b-info-card:hover::after {
    transform: scale(1.45);
    background: rgba(18,104,232,0.14);
}

.b2b-info-card em {
    color: #1268e8;
    font-size: 14px;
    font-style: normal;
    font-weight: 900;
}

.b2b-info-card h3 {
    margin-top: 34px;
    font-size: 27px;
    letter-spacing: -0.045em;
}

.b2b-info-card p {
    margin-top: 16px;
    color: #667085;
}

/* =========================
   INFRA
========================= */

.b2b-infra {
    position: relative;
    max-width: none;
    overflow: hidden;
    color: #fff;
}

.b2b-infra-bg {
    position: absolute;
    inset: 0;
}

.b2b-infra-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.b2b-infra-bg::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
            linear-gradient(135deg, rgba(4,13,30,0.97), rgba(4,37,74,0.9)),
            rgba(0,0,0,0.2);
}
.b2b-infra-inner {
    position: relative;
    z-index: 2;
    max-width: 1480px;
    margin: 0 auto;
}

.b2b-stat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
}

.b2b-stat-card {
    min-height: 200px;
    padding: 38px;
    border-radius: 30px;
    background: rgba(255,255,255,0.09);
    border: 1px solid rgba(255,255,255,0.14);
    backdrop-filter: blur(18px);
    transition: 0.35s ease;
}

.b2b-stat-card:hover {
    transform: translateY(-10px);
    background: rgba(255,255,255,0.16);
}

.b2b-stat-card strong {
    display: block;
    margin-bottom: 16px;
    font-size: 44px;
    line-height: 1;
    letter-spacing: -0.055em;
}

.b2b-stat-card span {
    color: rgba(255,255,255,0.76);
    font-weight: 600;
}

.b2b-model {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 78px;
    align-items: center;
}

.b2b-model-img {
    position: relative;
    width: 100%;
    height: 660px;
    border-radius: 40px;
    overflow: hidden;
    background: #f6f8fb;
    box-shadow: 0 36px 90px rgba(15,23,42,0.16);
}

.b2b-model-img video,
.b2b-model-img img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
    transition: opacity 0.45s ease, transform 0.6s ease;
}

.b2b-model-img video.fade-out,
.b2b-model-img img.fade-out {
    opacity: 0;
    transform: scale(1.03);
}

.b2b-model-img:hover video,
.b2b-model-img:hover img {
    transform: scale(1.04);
}

.b2b-model-list {
    margin-top: 38px;
    display: grid;
    gap: 14px;
}

.b2b-model-list button {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 22px 24px;
    border-radius: 20px;
    border: 0;
    background: #f6f8fb;
    cursor: pointer;
    transition: background 0.35s ease, transform 0.35s ease, box-shadow 0.35s ease;
    text-align: left;
}

.b2b-model-list button:hover {
    background: #eef7ff;
    transform: translateX(8px);
    box-shadow: 0 16px 40px rgba(18,104,232,0.10);
}

.b2b-model-list button.active {
    background: linear-gradient(135deg, #0b1220, #142845);
    box-shadow: 0 22px 60px rgba(11,18,32,0.28);
}

.b2b-model-list button.active span,
.b2b-model-list button.active b {
    color: #fff;
}

.b2b-model-list b {
    min-width: 42px;
    color: #1268e8;
    font-size: 18px;
    font-weight: 900;
}

.b2b-model-list span {
    font-weight: 600;
    font-size: 17px;
    line-height: 1.5;
    color: #111827;
}111827;
}

.b2b-flow {
    padding-top: 100px;
}

.b2b-flow-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
}

.b2b-flow-card {
    min-height: 270px;
    padding: 36px;
    border-radius: 30px;
    border: 1px solid #e8edf4;
    background: #fff;
    transition: 0.35s ease;
}

.b2b-flow-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 28px 70px rgba(15,23,42,0.1);
}

.b2b-flow-card span {
    display: inline-flex;
    padding: 8px 13px;
    border-radius: 999px;
    background: #eef7ff;
    color: #1268e8;
    font-size: 12px;
    font-weight: 900;
}

.b2b-flow-card h3 {
    margin-top: 34px;
    font-size: 25px;
    letter-spacing: -0.045em;
}

.b2b-flow-card p {
    margin-top: 14px;
    color: #667085;
}

.b2b-country {
    max-width: none;
    background: #f3f7fb;
}

.b2b-country > .b2b-section-title,
.b2b-country > .b2b-tabs,
.b2b-country > .b2b-tab-panel {
    max-width: 1480px;
    margin-left: auto;
    margin-right: auto;
}

.b2b-tabs {
    display: flex;
    gap: 12px;
    margin-bottom: 28px;
    overflow-x: auto;
    overflow-y: visible;
    padding: 10px 0 12px;
}

.b2b-tabs button {
    flex: 0 0 auto;
    min-width: 142px;
    height: 54px;
    border-radius: 999px;
    border: 1px solid #d8e1ef;
    background: #fff;
    color: #475467;
    font-size: 15px;
    font-weight: 900;
    cursor: pointer;
    transition: 0.3s ease;
}

.b2b-tabs button:hover {
    color: #1268e8;
    border-color: #1268e8;
    transform: translateY(-2px);
}

.b2b-tabs button.active {
    color: #fff;
    background: #0b1220;
    border-color: #0b1220;
}

.b2b-tab-panel {
    display: none;
}

.b2b-tab-panel.active {
    display: block;
    animation: tabFade 0.48s ease;
}

.b2b-country-card {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    gap: 58px;
    align-items: center;
    padding: 44px;
    border-radius: 42px;
    background: #fff;
    box-shadow: 0 28px 90px rgba(15,23,42,0.08);
}
.b2b-country-card img {
    width: 100%;
    height: 100%;
    min-height: 100%;
    object-fit: cover;
    object-position: center center;
    display: block;
    border-radius: 60px;
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.12),
    0 4px 12px rgba(15, 23, 42, 0.06);
}

.b2b-country-card em {
    color: #1268e8;
    font-size: 13px;
    font-style: normal;
    font-weight: 900;
    letter-spacing: 0.16em;
}

.b2b-country-card h3 {
    margin-top: 14px;
    font-size: clamp(30px, 3.2vw, 39px);
    line-height: 1.26;
    letter-spacing: -0.025em;
}

.b2b-country-card p {
    margin-top: 22px;
    color: #667085;
    font-size: 18px;
    letter-spacing: -0.2px;
}

.b2b-country-card ul {
    margin-top: 30px;
    list-style: none;
    display: grid;
    gap: 12px;
}

.b2b-country-card li {
    padding: 17px 20px;
    border-radius: 17px;
    background: #f6f8fb;
    font-weight: 800;
}

.b2b-cta {
    position: relative;
    min-height: 720px;
    display: flex;
    align-items: center;
    overflow: hidden;
    color: #fff;
}

.b2b-cta-bg {
    position: absolute;
    inset: 0;
}

.b2b-cta-bg img {
    height: 100%;
    object-fit: cover;
}

.b2b-cta-bg::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
            linear-gradient(90deg, rgba(3,12,28,0.92), rgba(3,12,28,0.56), rgba(3,12,28,0.18)),
            linear-gradient(180deg, rgba(3,12,28,0.15), rgba(3,12,28,0.78));
}

.b2b-cta-content {
    position: relative;
    z-index: 2;
    max-width: 1480px;
    width: 100%;
    margin: 0 auto;
    padding: 120px 48px;
}

.b2b-cta-content h2 {
    max-width: 780px;
}

.b2b-cta-content p {
    max-width: 720px;
    color: rgba(255,255,255,0.76);
}

.b2b-cta-content .b2b-btn {
    margin: 22px 7px;
}

.b2b-footer {
    background: #0b1220;
    color: #fff;
    padding: 64px 48px;
}

.b2b-footer-inner {
    max-width: 1480px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    gap: 40px;
}

.b2b-footer h2 {
    font-size: 32px;
    letter-spacing: -0.04em;
}

.b2b-footer p {
    color: rgba(255,255,255,0.68);
}

.b2b-footer-info {
    text-align: right;
}

.reveal {
    opacity: 1;
    transform: translateY(0);
}

.js .reveal {
    opacity: 0;
    transform: translateY(58px);
    transition: opacity 0.85s ease, transform 0.85s ease;
}

.js .reveal.show {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 {
    transition-delay: 0.12s;
}

.delay-2 {
    transition-delay: 0.24s;
}

.delay-3 {
    transition-delay: 0.36s;
}

.delay-4 {
    transition-delay: 0.48s;
}

@keyframes heroZoom {
    from {
        transform: scale(1.08);
    }
    to {
        transform: scale(1);
    }
}

@keyframes tabFade {
    from {
        opacity: 0;
        transform: translateY(18px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
@media (max-width: 1180px) {

    .b2b-header-inner {
        padding: 0 32px;
    }

    .b2b-menu-btn {
        display: block;
    }

    .b2b-nav {
        position: absolute;
        top: 82px;
        left: 0;
        width: 100%;
        display: none;
        flex-direction: column;
        gap: 20px;
        padding: 28px;
        background: rgba(8,16,32,0.98);
    }

    .b2b-nav.open {
        display: flex;
    }

    .b2b-card-grid,
    .b2b-stat-grid,
    .b2b-flow-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .b2b-model,
    .b2b-country-card {
        grid-template-columns: 1fr;
    }

    .b2b-model-img {
        height: 520px;
    }

    .b2b-hero-card {
        position: relative;
        right: auto;
        bottom: auto;
        z-index: 4;
        width: auto;
        margin: -140px 32px 50px;
    }
}

@media (max-width: 768px) {

    .b2b-header-inner {
        height: 68px;
        padding: 0 20px;
    }

    .b2b-nav {
        top: 68px;
    }

    .b2b-logo {
        font-size: 21px;
    }

    /* =========================
       HERO MOBILE
    ========================= */

    .b2b-hero {
        min-height: auto;
        padding-bottom: 70px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        text-align: center;
        overflow: hidden;
    }

    .b2b-hero-bg video,
    .b2b-hero-bg img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        object-position: center center;
    }

    .b2b-hero-dim {
        background:
                radial-gradient(circle at 50% 28%, rgba(0,184,255,0.14), transparent 42%),
                linear-gradient(180deg, rgba(3,12,28,0.76) 0%, rgba(3,12,28,0.62) 45%, rgba(3,12,28,0.9) 100%),
                linear-gradient(90deg, rgba(3,12,28,0.38) 0%, rgba(3,12,28,0.18) 50%, rgba(3,12,28,0.38) 100%);
    }

    .b2b-hero-content {
        width: 100%;
        padding: 130px 24px 36px;
        display: flex;
        flex-direction: column;
        align-items: center;
        text-align: center;
        z-index: 3;
    }

    .b2b-label {
        width: 100%;
        text-align: center;
    }

    .b2b-hero h1 {
        width: 100%;
        max-width: 360px;
        margin: 0 auto;
        font-size: 34px;
        line-height: 1.3;
        letter-spacing: -0.06em;
        text-align: center;
    }

    .b2b-hero-text {
        width: 100%;
        max-width: 340px;
        margin: 28px auto 0;
        font-size: 16px;
        line-height: 1.75;
        text-align: center;
    }

    .b2b-hero-buttons {
        width: 100%;
        max-width: 320px;
        margin: 44px auto 0;
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 14px;
    }

    .b2b-btn {
        width: 100%;
        max-width: 320px;
        justify-content: center;
    }

    .b2b-hero-card {
        position: relative;
        right: auto;
        bottom: auto;
        width: calc(100% - 48px);
        max-width: 320px;
        margin: 0 auto;
        padding: 24px 22px;
        text-align: center;
        border-radius: 24px;
        z-index: 3;
    }

    .b2b-hero-card p {
        font-size: 12px;
        line-height: 1.6;
    }

    .b2b-hero-card strong {
        display: block;
        font-size: 20px;
        line-height: 1.45;
    }

    /* =========================
       SECTION
    ========================= */

    .b2b-section {
        padding: 70px 24px;
    }

    .b2b-card-grid,
    .b2b-stat-grid,
    .b2b-flow-grid {
        grid-template-columns: 1fr;
    }

    .b2b-info-card,
    .b2b-stat-card,
    .b2b-flow-card {
        padding: 28px;
    }

    /* =========================
       MODEL
    ========================= */

    .b2b-model {
        display: flex;
        flex-direction: column;
        gap: 15px;
    }

    .b2b-model-text {
        order: 1;
        display: contents;
    }

    .b2b-model-text .b2b-label {
        order: 1;
    }

    .b2b-model-text h2 {
        order: 2;
        font-size: 28px;
        text-align: center;
        line-height: 1.4;
    }

    .b2b-model-text p {
        order: 3;
        font-size: 16px;
        text-align: center;
    }

    .b2b-model-img {
        order: 4;
        border-radius: 28px;
    }

    .b2b-model-img {
        height: 320px;
    }

    .b2b-country-card img {
        height: 320px;
    }

    .b2b-model-list {
        order: 5;
        gap: 10px;
    }

    .b2b-model-list button {
        padding: 18px;
        border-radius: 18px;
        gap: 14px;
    }

    .b2b-model-list button:hover {
        transform: none;
    }

    .b2b-model-list span {
        font-size: 15px;
    }

    /* =========================
       COUNTRY
    ========================= */

    .b2b-country-card {
        padding: 24px;
        border-radius: 28px;
        gap: 28px;
        text-align: center;
    }

    /* =========================
       CTA
    ========================= */

    .b2b-cta {
        min-height: 680px;
        text-align: center;
    }

    .b2b-cta-content {
        padding: 86px 24px;
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    /* =========================
       FOOTER
    ========================= */

    .b2b-footer {
        padding: 48px 24px;
        text-align: center;
    }

    .b2b-footer-inner {
        flex-direction: column;
        align-items: center;
    }

    .b2b-footer-info {
        text-align: center;
    }
    /* =========================
   MOBILE SECTION TITLE
========================= */

    .b2b-section-title,
    .b2b-section-title h2,
    .b2b-section-title p {
        text-align: center;
        margin-left: auto;
        margin-right: auto;
        font-size: 28px;
        line-height: 1.3;
    }

    .b2b-section-title p {
        max-width: 100%;
        font-size: 16px;
    }
    .b2b-section-title p:not(.b2b-label), .b2b-model-text p, .b2b-cta-content p{margin-bottom: 10px;font-size: 14px;/* margin-top: 5px; */line-height: 1.5;}

    .b2b-country-card li{font-size: 13px;}
    .b2b-country-card p{font-size: 14px}
    .b2b-stat-card {min-height: 150px}

}

.mobile-br {
    display: none;
}

@media (max-width: 768px) {

    .mobile-br {
        display: block;
    }
    .b2b-cta-content .b2b-btn {margin: 14px 12px;}
    .b2b-country-card h3 {font-size: 20px}
    .b2b-section-title {
        margin-bottom: 20px;
    }

}