:root {
            --hd-bg: #f6fbff;
            --hd-surface: rgba(255, 255, 255, .92);
            --hd-surface-2: #ffffff;
            --hd-text: #12303f;
            --hd-muted: #60717c;
            --hd-line: rgba(18, 88, 117, .14);
            --hd-brand: #125875;
            --hd-brand-2: #0dcaf0;
            --hd-hover: #ecf9fd;
            --hd-shadow: 0 18px 40px rgba(8, 27, 38, .08);
            --hd-shadow-soft: 0 10px 24px rgba(8, 27, 38, .06);
            --hd-radius-xl: 28px;
            --hd-radius-lg: 20px;
            --hd-radius-md: 14px;
            --hd-max: 1320px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            background: var(--hd-bg);
            color: var(--hd-text);
        }

        .site-shell {
            width: min(var(--hd-max), calc(100% - 28px));
            margin-inline: auto;
        }

        .site-topbar {
            position: relative;
            z-index: 20;
            padding: 14px 0 0;
        }

        .site-topbar__inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 12px 18px;
            border: 1px solid var(--hd-line);
            border-radius: 999px;
            background: rgba(255, 255, 255, .76);
            backdrop-filter: blur(12px);
            box-shadow: var(--hd-shadow-soft);
        }

        .site-topbar__social,
        .site-topbar__portals {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .site-topbar__label {
            color: var(--hd-muted);
            font-size: .88rem;
            font-weight: 800;
            letter-spacing: .02em;
        }

        .site-social-link,
        .site-portal-link {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            min-height: 42px;
            padding: 10px 14px;
            border-radius: 999px;
            border: 1px solid var(--hd-line);
            background: var(--hd-surface-2);
            color: var(--hd-text);
            text-decoration: none !important;
            font-size: .92rem;
            font-weight: 800;
            transition: .18s ease;
            box-shadow: var(--hd-shadow-soft);
        }

        .site-social-link:hover,
        .site-portal-link:hover {
            transform: translateY(-2px);
            border-color: rgba(13, 202, 240, .34);
            background: var(--hd-hover);
            color: var(--hd-brand);
        }

        .site-social-link i,
        .site-portal-link i {
            color: var(--hd-brand);
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            padding: 14px 0 18px;
            background: linear-gradient(180deg, rgba(246, 251, 255, .94), rgba(246, 251, 255, .78));
            backdrop-filter: blur(10px);
        }

        .site-header__inner {
            display: grid;
            grid-template-columns: 220px minmax(0, 1fr) auto;
            gap: 18px;
            align-items: center;
            padding: 16px 18px;
            border: 1px solid var(--hd-line);
            border-radius: var(--hd-radius-xl);
            background: var(--hd-surface);
            box-shadow: var(--hd-shadow);
            position: relative;
        }

        .site-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none !important;
            min-width: 0;
        }

        .site-brand img {
            width: auto;
            max-width: 180px;
            height: auto;
            display: block;
        }

        .site-brand__text {
            display: none;
            flex-direction: column;
            min-width: 0;
        }

        .site-brand__title {
            font-size: 1rem;
            font-weight: 950;
            color: var(--hd-text);
            line-height: 1.15;
        }

        .site-brand__sub {
            font-size: .8rem;
            color: var(--hd-muted);
            line-height: 1.3;
            margin-top: 2px;
        }

        .site-nav {
            min-width: 0;
        }

        .site-nav ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .site-nav>ul {
            display: flex;
            align-items: center;
            justify-content: flex-end;
            gap: 6px;
            flex-wrap: wrap;
        }

        .site-nav>ul>li {
            position: relative;
        }

        .site-nav>ul>li>a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            min-height: 46px;
            padding: 12px 14px;
            border-radius: 999px;
            color: var(--hd-text);
            text-decoration: none !important;
            font-size: .95rem;
            font-weight: 850;
            transition: .18s ease;
            white-space: nowrap;
        }

        .site-nav>ul>li>a:hover,
        .site-nav>ul>li:hover>a {
            color: var(--hd-brand);
            background: var(--hd-hover);
        }

        .site-nav .has-sub>a::after {
            content: "▾";
            font-size: .72rem;
            line-height: 1;
            opacity: .72;
        }

        .site-nav .sub-menu {
            position: absolute;
            top: calc(100% + 10px);
            inset-inline-start: 0;
            min-width: 270px;
            padding: 10px;
            border: 1px solid var(--hd-line);
            border-radius: 20px;
            background: rgba(255, 255, 255, .98);
            box-shadow: var(--hd-shadow);
            opacity: 0;
            visibility: hidden;
            transform: translateY(8px);
            transition: .18s ease;
        }

        .site-nav .sub-menu li+li {
            margin-top: 6px;
        }

        .site-nav .sub-menu a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            padding: 12px 14px;
            border-radius: 14px;
            color: var(--hd-text);
            text-decoration: none !important;
            font-weight: 800;
            line-height: 1.45;
            transition: .18s ease;
        }

        .site-nav .sub-menu a:hover {
            color: var(--hd-brand);
            background: var(--hd-hover);
        }

        .site-nav li:hover>.sub-menu {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .site-header__cta {
            display: flex;
            align-items: center;
            gap: 10px;
            justify-content: flex-end;
        }

        .site-header__link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            min-height: 46px;
            padding: 12px 16px;
            border-radius: 999px;
            border: 1px solid var(--hd-line);
            background: var(--hd-surface-2);
            color: var(--hd-text);
            text-decoration: none !important;
            font-size: .92rem;
            font-weight: 850;
            transition: .18s ease;
            white-space: nowrap;
        }

        .site-header__link:hover {
            transform: translateY(-2px);
            color: var(--hd-brand);
            background: var(--hd-hover);
            border-color: rgba(13, 202, 240, .34);
        }

        .site-mobile-toggle {
            display: none;
            width: 48px;
            height: 48px;
            border: 1px solid var(--hd-line);
            border-radius: 16px;
            background: var(--hd-surface-2);
            color: var(--hd-text);
            cursor: pointer;
            box-shadow: var(--hd-shadow-soft);
        }

        .site-mobile-panel {
            display: none;
            margin-top: 12px;
            padding: 12px;
            border: 1px solid var(--hd-line);
            border-radius: 24px;
            background: rgba(255, 255, 255, .96);
            box-shadow: var(--hd-shadow);
        }

        .site-mobile-panel.is-open {
            display: block;
        }

        .site-mobile-panel nav ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: grid;
            gap: 8px;
        }

        .site-mobile-panel nav a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 14px 16px;
            border: 1px solid var(--hd-line);
            border-radius: 16px;
            background: var(--hd-surface-2);
            color: var(--hd-text);
            text-decoration: none !important;
            font-weight: 850;
        }

        .site-mobile-panel details {
            border: 1px solid var(--hd-line);
            border-radius: 16px;
            background: var(--hd-surface-2);
            overflow: hidden;
        }

        .site-mobile-panel summary {
            list-style: none;
            cursor: pointer;
            padding: 14px 16px;
            font-weight: 850;
            color: var(--hd-text);
        }

        .site-mobile-panel summary::-webkit-details-marker {
            display: none;
        }

        .site-mobile-panel details ul {
            padding: 0 10px 10px;
        }

        .site-mobile-panel details ul li a {
            background: var(--hd-hover);
            border: 0;
        }

        @media (max-width:1199px) {
            .site-header__inner {
                grid-template-columns: 190px minmax(0, 1fr) auto;
            }

            .site-nav>ul>li>a {
                padding: 10px 12px;
                font-size: .9rem;
            }
        }

        @media (max-width:991px) {
            .site-topbar {
                display: none;
            }

            .site-header {
                padding-top: 12px;
            }

            .site-header__inner {
                grid-template-columns: 1fr auto;
            }

            .site-nav,
            .site-header__cta {
                display: none;
            }

            .site-mobile-toggle {
                display: inline-grid;
                place-items: center;
            }

            .site-brand img {
                max-width: 165px;
            }
        }

        @media (max-width:575px) {
            .site-shell {
                width: min(var(--hd-max), calc(100% - 20px));
            }

            .site-header__inner {
                padding: 12px;
                gap: 12px;
            }

            .site-brand img {
                max-width: 145px;
            }
        }

        [dir="rtl"] .site-nav>ul {
            justify-content: flex-start;
        }

        [dir="rtl"] .site-nav .sub-menu {
            inset-inline-start: auto;
            inset-inline-end: 0;
        }