.site-topbar-shell {
    --site-surface: #ffffff;
    --site-surface-soft: #f6f8fb;
    --site-line: #dbe1ea;
    --site-line-strong: #aeb8c8;
    --site-ink: #171b24;
    --site-muted: #687385;
    --site-primary: #0e7c66;
    --site-primary-rgb: 14, 124, 102;
    --site-accent: #2563eb;
    --site-accent-rgb: 37, 99, 235;
    --site-warm: #d97706;
    --site-radius: 8px;
    --site-font-heading: "Space Grotesk", "Noto Sans SC", "PingFang SC", sans-serif;
    --site-font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    --site-font-mono: "JetBrains Mono", "SFMono-Regular", "Consolas", monospace;
    position: sticky;
    top: 0;
    z-index: 1000;
    display: grid;
    grid-template-columns: minmax(184px, 0.9fr) auto minmax(238px, 1fr);
    align-items: center;
    gap: 1.15rem;
    min-height: 70px;
    padding: 0 2rem;
    border-bottom: 1px solid rgba(23, 27, 36, 0.11);
    color: var(--site-ink);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(255, 255, 255, 0.9)),
        linear-gradient(90deg, rgba(var(--site-primary-rgb), 0.08), rgba(var(--site-accent-rgb), 0.05) 48%, rgba(217, 119, 6, 0.07));
    box-shadow: 0 12px 32px rgba(19, 27, 42, 0.08);
    backdrop-filter: blur(18px) saturate(1.08);
    font-family: var(--site-font-body);
}

.site-topbar-shell::before {
    content: "";
    position: absolute;
    inset: 0 0 auto;
    height: 3px;
    background: linear-gradient(90deg, var(--site-primary), var(--site-accent) 52%, var(--site-warm));
    pointer-events: none;
}

.site-brand,
.site-topnav,
.site-top-actions,
.site-top-search,
.site-nav-link,
.site-nav-dropdown-link {
    -webkit-tap-highlight-color: transparent;
}

.site-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.72rem;
    width: fit-content;
    min-width: 0;
    color: var(--site-ink);
    text-decoration: none;
}

.site-brand:hover,
.site-brand:focus {
    color: var(--site-ink);
    text-decoration: none;
}

.site-brand-mark {
    display: grid;
    place-items: center;
    width: 40px;
    height: 40px;
    flex: 0 0 auto;
    border: 1px solid rgba(var(--site-primary-rgb), 0.18);
    border-radius: var(--site-radius);
    color: var(--site-primary);
    background: rgba(255, 255, 255, 0.74);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9), 0 10px 22px rgba(15, 23, 42, 0.08);
}

.site-brand-mark-image {
    width: 66px;
    height: 42px;
    border: 0;
    background: transparent;
    box-shadow: none;
}

.site-brand-logo {
    display: block;
    width: 66px;
    height: auto;
}

.site-brand-mark svg,
.site-nav-icon svg,
.site-nav-caret svg,
.site-nav-dropdown-icon svg,
.site-top-search svg {
    display: block;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.site-brand-mark svg {
    width: 28px;
    height: 28px;
    stroke-width: 2.5;
}

.site-brand-name {
    font-family: var(--site-font-heading);
    font-size: 1.6rem;
    font-weight: 700;
    line-height: 1;
    letter-spacing: 0;
}

.site-topnav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.42rem;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
}

.site-nav-group {
    position: relative;
    display: inline-flex;
    align-items: center;
    flex: 0 0 auto;
}

.site-nav-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    min-height: 42px;
    padding: 0 0.78rem;
    overflow: hidden;
    border: 1px solid transparent;
    border-radius: var(--site-radius);
    color: var(--site-muted);
    font-size: 0.93rem;
    font-weight: 800;
    line-height: 1;
    white-space: nowrap;
    text-decoration: none;
    transition:
        color 0.16s ease,
        border-color 0.16s ease,
        background-color 0.16s ease,
        box-shadow 0.16s ease,
        transform 0.16s ease;
}

.site-nav-group-trigger {
    padding-right: 0.62rem;
}

.site-nav-link::after {
    content: "";
    position: absolute;
    right: 0.7rem;
    bottom: 5px;
    left: 0.7rem;
    height: 2px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--site-primary), var(--site-accent));
    opacity: 0;
    transform: scaleX(0.3);
    transition: opacity 0.16s ease, transform 0.16s ease;
}

.site-nav-link:hover,
.site-nav-link:focus,
.site-nav-link.is-active {
    color: var(--site-ink);
    border-color: transparent;
    background: transparent;
    box-shadow: none;
    text-decoration: none;
    transform: translateY(-1px);
}

.site-nav-link:hover::after,
.site-nav-link:focus::after,
.site-nav-link.is-active::after,
.site-nav-group:hover .site-nav-group-trigger::after,
.site-nav-group:focus-within .site-nav-group-trigger::after {
    opacity: 1;
    transform: scaleX(1);
}

.site-nav-link:focus-visible,
.site-top-search:focus-within {
    outline: 3px solid rgba(var(--site-primary-rgb), 0.2);
    outline-offset: 3px;
}

.site-nav-icon {
    display: grid;
    place-items: center;
    width: 27px;
    height: 27px;
    border: 1px solid transparent;
    border-radius: 7px;
    color: var(--site-primary);
    background: transparent;
    box-shadow: none;
    transition:
        transform 0.16s ease,
        border-color 0.16s ease,
        background-color 0.16s ease,
        color 0.16s ease;
}

.site-nav-icon svg {
    width: 17px;
    height: 17px;
    stroke-width: 2.25;
    vector-effect: non-scaling-stroke;
}

.site-nav-icon-blue {
    color: var(--site-accent);
}

.site-nav-icon-violet {
    color: #7c3aed;
}

.site-nav-icon-green {
    color: #059669;
}

.site-nav-icon-warm {
    color: var(--site-warm);
}

.site-nav-link:hover .site-nav-icon,
.site-nav-link:focus .site-nav-icon,
.site-nav-link.is-active .site-nav-icon {
    border-color: transparent;
    background: transparent;
    transform: translateY(-1px);
}

.site-nav-caret {
    display: grid;
    place-items: center;
    width: 15px;
    height: 15px;
    margin-left: -0.1rem;
    color: currentColor;
    transition: transform 0.16s ease;
}

.site-nav-caret svg {
    width: 15px;
    height: 15px;
    stroke-width: 2.4;
}

.site-nav-group:hover .site-nav-caret,
.site-nav-group:focus-within .site-nav-caret {
    transform: rotate(180deg);
}

.site-nav-dropdown {
    position: absolute;
    top: calc(100% + 10px);
    left: 50%;
    z-index: 20;
    display: grid;
    gap: 0.32rem;
    width: max-content;
    min-width: 238px;
    max-width: min(300px, calc(100vw - 2rem));
    padding: 0.82rem;
    border: 1px solid rgba(23, 27, 36, 0.12);
    border-radius: var(--site-radius);
    color: var(--site-ink);
    background: #ffffff;
    box-shadow: 0 22px 46px rgba(19, 27, 42, 0.18);
    opacity: 0;
    pointer-events: none;
    transform: translate(-50%, -6px);
    visibility: hidden;
    transition:
        opacity 0.16s ease,
        transform 0.16s ease,
        visibility 0s linear 0.16s;
}

.site-nav-dropdown::before {
    content: "";
    position: absolute;
    right: 0;
    bottom: 100%;
    left: 0;
    height: 12px;
}

.site-nav-group:hover .site-nav-dropdown,
.site-nav-group:focus-within .site-nav-dropdown {
    opacity: 1;
    pointer-events: auto;
    transform: translate(-50%, 0);
    visibility: visible;
    transition-delay: 0s;
}

.site-nav-dropdown-label {
    padding: 0.08rem 0.32rem 0.26rem;
    color: var(--site-muted);
    font-size: 0.8rem;
    font-weight: 700;
    line-height: 1.2;
}

.site-nav-dropdown-link {
    display: grid;
    grid-template-columns: 30px minmax(0, 1fr);
    align-items: center;
    gap: 0.64rem;
    min-height: 48px;
    padding: 0.48rem 0.56rem;
    border: 1px solid transparent;
    border-radius: 7px;
    color: var(--site-ink);
    text-decoration: none;
    transition:
        color 0.16s ease,
        border-color 0.16s ease,
        background-color 0.16s ease,
        transform 0.16s ease;
}

.site-nav-dropdown-link:hover,
.site-nav-dropdown-link:focus,
.site-nav-dropdown-link.is-active {
    color: var(--site-ink);
    border-color: rgba(23, 27, 36, 0.08);
    background: var(--site-surface-soft);
    text-decoration: none;
    transform: translateX(2px);
}

.site-nav-dropdown-link:focus-visible {
    outline: 3px solid rgba(var(--site-primary-rgb), 0.2);
    outline-offset: 2px;
}

.site-nav-dropdown-icon {
    display: grid;
    place-items: center;
    width: 30px;
    height: 30px;
    border-radius: 7px;
    background: rgba(23, 27, 36, 0.04);
}

.site-nav-dropdown-icon-blue {
    color: var(--site-accent);
}

.site-nav-dropdown-icon-violet {
    color: #7c3aed;
}

.site-nav-dropdown-icon svg {
    width: 18px;
    height: 18px;
    stroke-width: 2.25;
    vector-effect: non-scaling-stroke;
}

.site-nav-dropdown-link strong,
.site-nav-dropdown-link small {
    display: block;
    min-width: 0;
    overflow-wrap: anywhere;
}

.site-nav-dropdown-link strong {
    font-size: 0.94rem;
    font-weight: 800;
    line-height: 1.15;
}

.site-nav-dropdown-link small {
    margin-top: 0.16rem;
    color: var(--site-muted);
    font-size: 0.74rem;
    font-weight: 700;
    line-height: 1.2;
}

.site-top-actions {
    justify-self: end;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.72rem;
    width: min(100%, 560px);
    min-width: 0;
}

.site-top-search {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 0.64rem;
    flex: 1 1 336px;
    width: min(100%, 430px);
    min-width: 0;
    min-height: 42px;
    padding: 0 0.72rem;
    border: 1px solid rgba(23, 27, 36, 0.11);
    border-radius: var(--site-radius);
    background: rgba(255, 255, 255, 0.9);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.92), 0 8px 20px rgba(19, 27, 42, 0.06);
    transition: border-color 0.16s ease, background-color 0.16s ease, box-shadow 0.16s ease;
}

.site-top-search svg {
    width: 18px;
    height: 18px;
    color: var(--site-muted);
    stroke-width: 2;
}

.site-top-search input {
    width: 100%;
    min-width: 0;
    border: 0;
    outline: 0;
    color: var(--site-ink);
    background: transparent;
    font: 700 0.92rem/1.2 var(--site-font-body);
}

.site-top-search input::placeholder {
    color: var(--site-muted);
}

.site-top-search:focus-within {
    border-color: rgba(var(--site-primary-rgb), 0.56);
    background: #ffffff;
    box-shadow: 0 0 0 4px rgba(var(--site-primary-rgb), 0.1), 0 10px 24px rgba(19, 27, 42, 0.08);
}

.site-top-search kbd {
    padding: 0.16rem 0.42rem;
    border: 1px solid rgba(23, 27, 36, 0.16);
    border-bottom-color: rgba(23, 27, 36, 0.28);
    border-radius: 6px;
    color: var(--site-ink);
    background: #f7f9fc;
    font: 800 0.74rem/1.2 var(--site-font-mono);
}

.site-topbar-spacer {
    flex: 1 1 auto;
    width: min(100%, 430px);
    min-height: 1px;
}

.site-topbar-shell .site-account-trigger {
    min-height: 42px;
    border-color: rgba(23, 27, 36, 0.11);
    border-radius: var(--site-radius);
    color: var(--site-ink);
    background: rgba(255, 255, 255, 0.9);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.92), 0 8px 20px rgba(19, 27, 42, 0.06);
}

.site-topbar-shell .site-account-trigger:hover,
.site-topbar-shell .site-account-trigger:focus,
.site-topbar-shell .site-account-trigger[aria-expanded="true"] {
    color: var(--site-primary);
    border-color: rgba(var(--site-primary-rgb), 0.3);
    background: #ffffff;
    box-shadow: 0 0 0 4px rgba(var(--site-primary-rgb), 0.1), 0 10px 24px rgba(19, 27, 42, 0.08);
}

.site-topbar-shell .site-account-trigger:focus-visible {
    outline: 3px solid rgba(var(--site-primary-rgb), 0.2);
    outline-offset: 3px;
}

.site-topbar-shell .site-account-avatar {
    border-color: rgba(var(--site-primary-rgb), 0.24);
    background: #eef7f4;
}

.site-topbar-shell .site-account-slot .account-menu {
    top: calc(100% + 12px);
    border-color: rgba(23, 27, 36, 0.12);
    border-radius: var(--site-radius);
    color: var(--site-ink);
    box-shadow: 0 22px 46px rgba(19, 27, 42, 0.16);
}

@media (max-width: 1180px) {
    .site-topbar-shell {
        grid-template-columns: auto minmax(0, 1fr);
        gap: 0.85rem 1rem;
        min-height: 0;
        padding-top: 0.78rem;
        padding-bottom: 0.78rem;
    }

    .site-topnav {
        order: 3;
        grid-column: 1 / -1;
        flex-wrap: wrap;
        justify-content: flex-start;
        min-height: 46px;
        overflow: visible;
        scrollbar-width: none;
    }

    .site-topnav::-webkit-scrollbar {
        display: none;
    }

    .site-top-search,
    .site-topbar-spacer {
        width: min(100%, 480px);
    }
}

@media (max-width: 760px) {
    .site-topbar-shell {
        position: sticky;
        grid-template-columns: 1fr;
        gap: 0.72rem;
        padding: 0.9rem 1rem 0.95rem;
    }

    .site-brand-name {
        font-size: 1.38rem;
    }

    .site-brand-mark {
        width: 36px;
        height: 36px;
    }

    .site-brand-mark-image,
    .site-brand-logo {
        width: 58px;
    }

    .site-brand-mark-image {
        height: 36px;
    }

    .site-topnav {
        order: initial;
        grid-column: auto;
        position: relative;
        justify-content: flex-start;
        gap: 0.24rem;
        width: 100%;
        min-height: 0;
        padding: 0.24rem;
    }

    .site-nav-group {
        position: static;
    }

    .site-top-actions {
        justify-self: stretch;
        width: 100%;
        flex-wrap: wrap;
    }

    .site-nav-link {
        flex: 0 0 auto;
        justify-content: center;
        min-height: 40px;
        padding: 0 0.58rem;
        font-size: 0.88rem;
    }

    .site-nav-link::after {
        right: 0.56rem;
        left: 0.56rem;
    }

    .site-nav-icon {
        width: 24px;
        height: 24px;
    }

    .site-nav-icon svg {
        width: 16px;
        height: 16px;
    }

    .site-nav-dropdown {
        top: calc(100% + 0.48rem);
        right: 0.24rem;
        left: 0.24rem;
        width: auto;
        min-width: 0;
        max-width: none;
        transform: translateY(-6px);
    }

    .site-nav-group:hover .site-nav-dropdown,
    .site-nav-group:focus-within .site-nav-dropdown {
        transform: translateY(0);
    }

    .site-top-search {
        flex: 1 1 220px;
        width: 100%;
    }

    .site-top-search kbd,
    .site-topbar-spacer {
        display: none;
    }
}

@media (max-width: 520px) {
    .site-topbar-shell {
        padding-right: 0.82rem;
        padding-left: 0.82rem;
    }

    .site-top-actions {
        gap: 0.58rem;
    }

    .site-top-search {
        flex-basis: 100%;
        order: -1;
    }

    .site-topbar-shell .site-account-trigger {
        max-width: 100%;
    }
}

@media (prefers-reduced-motion: reduce) {
    .site-nav-link,
    .site-nav-link::after,
    .site-nav-icon,
    .site-nav-caret,
    .site-nav-dropdown,
    .site-nav-dropdown-link,
    .site-top-search,
    .site-topbar-shell .site-account-trigger {
        transition: none;
    }

    .site-nav-link:hover,
    .site-nav-link:focus,
    .site-nav-link.is-active,
    .site-nav-link:hover .site-nav-icon,
    .site-nav-link:focus .site-nav-icon,
    .site-nav-link.is-active .site-nav-icon,
    .site-nav-dropdown-link:hover,
    .site-nav-dropdown-link:focus,
    .site-nav-dropdown-link.is-active {
        transform: none;
    }

    .site-nav-group:hover .site-nav-caret,
    .site-nav-group:focus-within .site-nav-caret {
        transform: none;
    }
}

.site-topbar-shell .site-brand,
.site-topbar-shell .site-brand:hover,
.site-topbar-shell .site-brand:focus {
    color: var(--site-ink);
    text-decoration: none;
}

.site-topbar-shell .site-nav-link {
    color: var(--site-muted);
    text-decoration: none;
}

.site-topbar-shell .site-nav-link:hover,
.site-topbar-shell .site-nav-link:focus,
.site-topbar-shell .site-nav-link.is-active {
    color: var(--site-ink);
    text-decoration: none;
}

.site-topbar-shell .site-nav-dropdown-link {
    color: var(--site-ink);
    text-decoration: none;
}

.site-topbar-shell .site-nav-dropdown-link:hover,
.site-topbar-shell .site-nav-dropdown-link:focus,
.site-topbar-shell .site-nav-dropdown-link.is-active {
    color: var(--site-ink);
    text-decoration: none;
}