:root {
    --accent: #7bb7ff;
    --accent-strong: #2f8df5;
    --surface: rgba(12, 18, 31, 0.72);
    --surface-soft: rgba(255, 255, 255, 0.07);
    --border: rgba(255, 255, 255, 0.14);
    --text-soft: rgba(255, 255, 255, 0.74);
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html { scroll-behavior: smooth; }

body {
    min-height: 100vh;
    margin: 0;
    color: #fff;
    background: url('bg.jpg') no-repeat center center fixed;
    background-size: cover;
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", Arial, sans-serif;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    background:
        radial-gradient(circle at 72% 12%, rgba(63, 119, 195, 0.2), transparent 35%),
        rgba(2, 5, 12, 0.76);
}

a { color: #8fc5ff; }

.top-nav {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 18px 30px;
    background: linear-gradient(to bottom, rgba(2, 5, 12, 0.86), rgba(2, 5, 12, 0));
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    text-decoration: none;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.45);
}

.brand img { width: 32px; height: 32px; border-radius: 8px; }
.brand .back-symbol { font-size: 22px; font-weight: 300; }
.brand:hover .back-symbol { transform: translateX(-3px); }
.back-symbol { transition: transform 0.2s ease; }

select {
    padding: 7px 30px 7px 12px;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 18px;
    outline: none;
    background-color: rgba(0, 0, 0, 0.42);
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 7px center;
    background-size: 12px;
    font-size: 13px;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    backdrop-filter: blur(12px);
}

select option { background: #172032; }

.container {
    width: min(1040px, calc(100% - 40px));
    margin: 0 auto;
    padding: 112px 0 70px;
}

.page-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 28px;
}

.page-tabs a {
    padding: 9px 16px;
    color: rgba(255, 255, 255, 0.82);
    border: 1px solid var(--border);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.05);
    font-size: 14px;
    font-weight: 650;
    text-decoration: none;
    transition: 0.2s ease;
    backdrop-filter: blur(14px);
}

.page-tabs a:hover,
.page-tabs a.active {
    color: #fff;
    border-color: rgba(123, 183, 255, 0.65);
    background: rgba(47, 141, 245, 0.24);
    box-shadow: 0 0 20px rgba(47, 141, 245, 0.14);
}

.lang-content { display: none; }
.lang-content.active { display: block; animation: reveal 0.35s ease; }

@keyframes reveal {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.kicker {
    margin: 0 0 12px;
    color: #a8d2ff;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

h1 {
    margin: 0;
    font-size: clamp(40px, 6vw, 66px);
    font-weight: 850;
    letter-spacing: -0.045em;
    line-height: 1.06;
    background: linear-gradient(145deg, #fff 20%, #d6e9ff 72%, #9bcaff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    max-width: 780px;
    margin: 18px 0 36px;
    color: var(--text-soft);
    font-size: 18px;
    line-height: 1.75;
}

.hero-card,
.card,
.service-card,
.contact-card,
.notice {
    border: 1px solid var(--border);
    background: var(--surface);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.22);
    backdrop-filter: blur(22px);
    -webkit-backdrop-filter: blur(22px);
}

.hero-card {
    position: relative;
    overflow: hidden;
    padding: 34px;
    border-radius: 24px;
}

.hero-card::after {
    content: "";
    position: absolute;
    right: -80px;
    bottom: -100px;
    width: 260px;
    height: 260px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(94, 174, 255, 0.22), transparent 68%);
    pointer-events: none;
}

.hero-card h2,
.card h2,
.service-card h2,
.contact-card h2 {
    margin: 0 0 13px;
    color: #fff;
    font-size: 22px;
    line-height: 1.35;
}

.hero-card p,
.card p,
.service-card p,
.contact-card p,
.notice p {
    margin: 0;
    color: var(--text-soft);
    font-size: 15px;
    line-height: 1.8;
}

.grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    margin-top: 18px;
}

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

.card,
.service-card,
.contact-card {
    padding: 26px;
    border-radius: 20px;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    min-height: 26px;
    margin-bottom: 16px;
    padding: 4px 10px;
    color: #b9dbff;
    border: 1px solid rgba(123, 183, 255, 0.25);
    border-radius: 999px;
    background: rgba(47, 141, 245, 0.12);
    font-size: 12px;
    font-weight: 750;
}

.plain-list,
.detail-list,
.price-list {
    margin: 14px 0 0;
    padding: 0;
    list-style: none;
}

.plain-list li,
.detail-list li {
    position: relative;
    margin-top: 10px;
    padding-left: 18px;
    color: var(--text-soft);
    font-size: 15px;
    line-height: 1.65;
}

.plain-list li::before,
.detail-list li::before {
    content: "";
    position: absolute;
    top: 0.7em;
    left: 0;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #74b5ff;
    box-shadow: 0 0 10px rgba(116, 181, 255, 0.7);
}

.section-title { margin: 44px 0 16px; }
.section-title h2 { margin: 0 0 8px; font-size: 28px; }
.section-title p { margin: 0; color: var(--text-soft); line-height: 1.65; }

.price-list { border-top: 1px solid rgba(255, 255, 255, 0.1); }
.price-list li {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    padding: 13px 0;
    color: var(--text-soft);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 14px;
}
.price-list strong { color: #fff; white-space: nowrap; }

.notice {
    margin-top: 18px;
    padding: 24px 26px;
    border-left: 4px solid #65acff;
    border-radius: 16px;
}
.notice strong { display: block; margin-bottom: 7px; color: #fff; }

.contact-link {
    display: inline-flex;
    align-items: center;
    margin-top: 14px;
    color: #fff;
    font-size: clamp(18px, 3vw, 24px);
    font-weight: 750;
    text-decoration: none;
    word-break: break-all;
}
.contact-link:hover { color: #a8d2ff; }

.meta-row {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-soft);
    font-size: 14px;
    line-height: 1.55;
}
.meta-row strong { color: #fff; text-align: right; }

.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0 22px;
    color: #05101d;
    border-radius: 999px;
    background: #fff;
    font-size: 15px;
    font-weight: 750;
    text-decoration: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.button.secondary { color: #fff; border: 1px solid var(--border); background: rgba(255, 255, 255, 0.08); }
.button:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(0, 0, 0, 0.24); }

.site-footer {
    width: min(1040px, calc(100% - 40px));
    margin: 0 auto;
    padding: 0 0 38px;
    color: rgba(255, 255, 255, 0.48);
    font-size: 12px;
    text-align: center;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px 22px;
    margin-bottom: 14px;
}
.footer-links a { color: rgba(255, 255, 255, 0.72); text-decoration: none; }
.footer-links a:hover { color: #fff; }
.site-footer p { margin: 7px 0; }

@media (max-width: 760px) {
    .top-nav { padding: 14px 18px; }
    .brand .brand-name { display: none; }
    .container { width: min(100% - 30px, 1040px); padding-top: 88px; }
    .grid,
    .grid.three { grid-template-columns: 1fr; }
    .hero-card,
    .card,
    .service-card,
    .contact-card { padding: 22px; }
    .subtitle { font-size: 16px; margin-bottom: 28px; }
    .page-tabs { gap: 8px; }
    .page-tabs a { flex: 1 1 auto; padding: 8px 11px; text-align: center; }
    .meta-row { flex-direction: column; gap: 6px; }
    .meta-row strong { text-align: left; }
    .button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}