:root {
    --bg: #f8fcff;
    --bg-soft: #eef8ff;
    --surface: rgba(255, 255, 255, 0.96);
    --surface-soft: rgba(242, 250, 255, 0.95);
    --text: #102537;
    --text-soft: #5a7487;
    --line: rgba(160, 204, 228, 0.34);
    --line-strong: rgba(124, 189, 222, 0.48);
    --primary: #57c0e8;
    --primary-strong: #239fd3;
    --primary-soft: rgba(87, 192, 232, 0.10);
    --dark: #0f2233;
    --dark-2: #17384f;
    --shadow-xs: 0 8px 20px rgba(24, 74, 105, 0.05);
    --shadow-sm: 0 14px 34px rgba(24, 74, 105, 0.08);
    --shadow-md: 0 22px 54px rgba(24, 74, 105, 0.12);
    --shadow-lg: 0 30px 80px rgba(24, 74, 105, 0.14);
    --radius-sm: 16px;
    --radius-md: 22px;
    --radius-lg: 28px;
    --radius-xl: 34px;
    --container: 1320px;
    --transition: 220ms cubic-bezier(.22,.61,.36,1);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at top left, rgba(87, 192, 232, 0.16), transparent 24%),
        radial-gradient(circle at top right, rgba(87, 192, 232, 0.12), transparent 22%),
        linear-gradient(180deg, #ffffff 0%, #f8fcff 48%, #eef8ff 100%);
    line-height: 1.55;
    overflow-x: hidden;
}

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

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

.container {
    width: min(100% - 16px, var(--container));
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255, 255, 255, 0.86);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(160, 204, 228, 0.16);
    box-shadow: 0 4px 16px rgba(24, 74, 105, 0.04);
}

.header-inner {
    min-height: 64px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.brand {
    display: inline-flex;
    align-items: center;
    flex: 1 1 auto;
    min-width: 0;
}

.brand-logo {
    height: 30px;
    width: auto;
    object-fit: contain;
}

.header-cta {
    flex: 0 0 auto;
}

.main-nav {
    display: none;
}

.btn {
    min-height: 46px;
    padding: 0 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    font-size: 0.95rem;
    font-weight: 900;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition);
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    color: #ffffff;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-strong) 100%);
    box-shadow: 0 12px 24px rgba(35, 159, 211, 0.22);
}

.btn-primary:hover {
    box-shadow: 0 16px 30px rgba(35, 159, 211, 0.28);
}

.btn-secondary {
    color: var(--dark);
    background: rgba(255, 255, 255, 0.92);
    border-color: rgba(160, 204, 228, 0.42);
    box-shadow: var(--shadow-xs);
}

.btn-large {
    min-height: 52px;
    padding: 0 24px;
}

.section {
    padding: 14px 0;
}

.section-soft {
    background: linear-gradient(180deg, rgba(238, 248, 255, 0.42) 0%, rgba(255,255,255,0) 100%);
}

.hero {
    padding-top: 12px;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

.hero-content,
.hero-visual,
.product-card,
.service-card,
.feature-box,
.cta-box {
    border-radius: var(--radius-lg);
    border: 1px solid rgba(160, 204, 228, 0.26);
    background: linear-gradient(180deg, rgba(255,255,255,0.96) 0%, rgba(245,251,255,0.96) 100%);
    box-shadow: var(--shadow-sm);
}

.hero-content {
    padding: 18px 16px;
}

.hero-pill,
.section-kicker,
.product-tag {
    display: inline-flex;
    align-items: center;
    min-height: 32px;
    padding: 0 12px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 900;
    letter-spacing: 0.09em;
    text-transform: uppercase;
}

.hero-pill,
.section-kicker {
    color: var(--primary-strong);
    background: rgba(87, 192, 232, 0.12);
    border: 1px solid rgba(87, 192, 232, 0.18);
}

h1,
h2,
h3 {
    margin: 0;
    line-height: 1.06;
    letter-spacing: -0.03em;
    color: var(--dark);
}

h1 {
    margin-top: 12px;
    font-size: clamp(2rem, 8vw, 4.6rem);
}

h2 {
    font-size: clamp(1.65rem, 6vw, 3rem);
}

h3 {
    font-size: clamp(1.2rem, 4vw, 1.65rem);
}

.hero-text,
.section-head p,
.product-title,
.product-description,
.service-card p,
.feature-item p,
.cta-text p,
.footer-copy,
.hero-stat span {
    color: var(--text-soft);
}

.hero-text {
    margin: 12px 0 0;
    font-size: 0.98rem;
}

.hero-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 16px;
}

.hero-actions .btn {
    width: 100%;
}

.hero-visual {
    padding: 14px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
}

.hero-stat {
    padding: 14px;
    border-radius: 18px;
    background: rgba(255,255,255,0.84);
    border: 1px solid rgba(160, 204, 228, 0.22);
    box-shadow: var(--shadow-xs);
}

.hero-stat strong {
    display: block;
    font-size: 0.96rem;
    line-height: 1.2;
    color: var(--dark);
}

.hero-stat span {
    display: block;
    margin-top: 4px;
    font-size: 0.9rem;
    line-height: 1.45;
}

.section-head {
    margin-bottom: 14px;
    max-width: 860px;
}

.section-head h2 {
    margin-top: 10px;
}

.section-head p {
    margin: 8px 0 0;
    font-size: 0.96rem;
}

.product-grid,
.service-grid,
.feature-wrap {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

.product-card {
    overflow: hidden;
}

.product-main {
    padding: 18px 16px 14px;
}

.product-header {
    margin-bottom: 12px;
}

.product-tag {
    color: var(--primary-strong);
    background: rgba(87, 192, 232, 0.10);
    border: 1px solid rgba(87, 192, 232, 0.18);
}

.product-logo-wrap {
    min-height: 74px;
    display: flex;
    align-items: center;
    margin-bottom: 12px;
}

.product-logo {
    width: auto;
    max-width: min(100%, 220px);
    max-height: 74px;
    object-fit: contain;
    filter: drop-shadow(0 10px 18px rgba(35, 159, 211, 0.10));
}

.product-title {
    margin-top: 6px;
    font-size: 0.98rem;
    font-weight: 800;
}

.product-description {
    margin: 12px 0 0;
    font-size: 0.96rem;
}

.product-side {
    padding: 0 12px 0;
    min-height: 150px;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    overflow: hidden;
    background: radial-gradient(circle at center bottom, rgba(87, 192, 232, 0.14) 0%, rgba(87, 192, 232, 0) 70%);
}

.product-mascot {
    width: auto;
    max-width: 88%;
    max-height: 170px;
    object-fit: contain;
    filter: drop-shadow(0 14px 26px rgba(24, 74, 105, 0.12));
}

.service-card,
.feature-box,
.cta-box {
    padding: 18px 16px;
}

.service-number {
    width: 48px;
    height: 48px;
    border-radius: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-strong);
    background: linear-gradient(180deg, rgba(87, 192, 232, 0.12) 0%, rgba(87, 192, 232, 0.06) 100%);
    border: 1px solid rgba(87, 192, 232, 0.18);
    font-size: 0.95rem;
    font-weight: 900;
}

.service-card h3 {
    margin-top: 14px;
}

.service-card p {
    margin: 10px 0 0;
    font-size: 0.96rem;
}

.feature-box h2 {
    margin-top: 10px;
}

.feature-box-accent {
    background:
        radial-gradient(circle at top right, rgba(87, 192, 232, 0.15) 0%, rgba(87, 192, 232, 0) 34%),
        linear-gradient(180deg, rgba(255,255,255,0.96) 0%, rgba(241,250,255,0.98) 100%);
}

.feature-list {
    display: grid;
    gap: 10px;
    margin-top: 14px;
}

.feature-item {
    padding: 14px;
    border-radius: 18px;
    background: rgba(255,255,255,0.8);
    border: 1px solid rgba(160, 204, 228, 0.20);
    box-shadow: var(--shadow-xs);
}

.feature-item strong {
    display: block;
    font-size: 0.98rem;
    line-height: 1.2;
    color: var(--dark);
}

.feature-item p {
    margin: 6px 0 0;
    font-size: 0.94rem;
}

.cta-text h2 {
    margin-top: 10px;
}

.cta-text p {
    margin: 10px 0 0;
    font-size: 0.96rem;
}

.cta-actions {
    margin-top: 16px;
}

.cta-actions .btn {
    width: 100%;
}

.site-footer {
    border-top: 1px solid rgba(160, 204, 228, 0.18);
    background: rgba(255,255,255,0.72);
}

.footer-inner {
    padding: 16px 0 24px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: flex-start;
}

.footer-brand img {
    height: 30px;
    width: auto;
    object-fit: contain;
}

.footer-copy {
    font-size: 0.9rem;
}

.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 700ms cubic-bezier(.22,.61,.36,1), transform 700ms cubic-bezier(.22,.61,.36,1);
}

.reveal-delay-1 {
    transition-delay: 90ms;
}

.reveal-delay-2 {
    transition-delay: 180ms;
}

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

@media (min-width: 700px) {
    .container {
        width: min(100% - 28px, var(--container));
    }

    .header-inner {
        min-height: 74px;
    }

    .brand-logo {
        height: 36px;
    }

    .hero-content,
    .hero-visual,
    .product-main,
    .service-card,
    .feature-box,
    .cta-box {
        padding-left: 22px;
        padding-right: 22px;
    }

    .hero-actions,
    .cta-actions {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .hero-actions .btn,
    .cta-actions .btn {
        width: auto;
    }

    .hero-visual {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .product-logo-wrap {
        min-height: 88px;
    }

    .product-logo {
        max-height: 88px;
        max-width: min(100%, 260px);
    }

    .product-side {
        min-height: 190px;
    }

    .product-mascot {
        max-height: 220px;
    }

    .service-grid,
    .feature-wrap {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .footer-inner {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

@media (min-width: 980px) {
    .container {
        width: min(100% - 42px, var(--container));
    }

    .header-cta {
        display: none;
    }

    .main-nav {
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .main-nav a:not(.btn) {
        min-height: 42px;
        padding: 0 12px;
        display: inline-flex;
        align-items: center;
        border-radius: 999px;
        font-size: 0.94rem;
        font-weight: 800;
        color: var(--dark);
        transition: background var(--transition), color var(--transition), transform var(--transition);
    }

    .main-nav a:not(.btn):hover {
        background: rgba(87, 192, 232, 0.08);
        color: var(--primary-strong);
        transform: translateY(-1px);
    }

    .hero {
        padding-top: 18px;
    }

    .hero-grid {
        grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
        gap: 16px;
        align-items: stretch;
    }

    .hero-content {
        padding: 28px;
    }

    .hero-visual {
        padding: 18px;
        grid-template-columns: 1fr;
        align-content: center;
    }

    .product-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .product-card {
        display: grid;
        grid-template-columns: minmax(0, 1fr) 240px;
        min-height: 320px;
    }

    .product-main {
        padding: 22px;
    }

    .product-logo-wrap {
        min-height: 96px;
    }

    .product-logo {
        max-height: 96px;
        max-width: min(100%, 290px);
    }

    .product-side {
        min-height: 100%;
        padding: 0 10px 0 0;
    }

    .product-mascot {
        max-height: 260px;
        max-width: 100%;
    }

    .service-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .cta-box {
        display: grid;
        grid-template-columns: minmax(0, 1fr) auto;
        align-items: center;
        gap: 18px;
    }
}

@media (min-width: 1240px) {
    .hero-content {
        padding: 34px;
    }

    .hero-visual {
        padding: 22px;
    }

    .product-card {
        grid-template-columns: minmax(0, 1fr) 280px;
    }

    .product-mascot {
        max-height: 300px;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation: none !important;
        transition: none !important;
    }

    .reveal {
        opacity: 1 !important;
        transform: none !important;
    }
}