.manual-section {
    width: 100%;
    padding: 48px 20px 72px;
    background: var(--color-bg, #0f1115);
}

.manual-layout {
    display: grid;
    grid-template-columns: minmax(180px, 230px) minmax(0, 860px);
    gap: 28px;
    max-width: 1120px;
    margin: 0 auto;
    align-items: start;
}

.manual-nav {
    position: sticky;
    top: 24px;
    padding: 22px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.035);
}

.manual-nav h2 {
    margin: 0 0 14px;
    color: #fff;
    font-size: 17px;
}

.manual-nav a {
    display: block;
    padding: 6px 0;
    color: rgba(255, 255, 255, 0.68);
    font-size: 14px;
    text-decoration: none;
}

.manual-nav a:hover,
.manual-nav a:focus-visible {
    color: var(--color-primary, #a8f27a);
}

.manual-content {
    min-width: 0;
    padding: 40px 44px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.035);
    color: rgba(255, 255, 255, 0.86);
    font-size: 15px;
    line-height: 1.85;
}

.manual-content h1 {
    margin: 0 0 12px;
    color: #fff;
    font-size: 30px;
    line-height: 1.3;
    text-align: center;
}

.manual-lead {
    margin: 0 0 34px;
    color: rgba(255, 255, 255, 0.58);
    text-align: center;
}

.manual-content h2 {
    margin: 42px 0 14px;
    padding-bottom: 9px;
    border-bottom: 1px solid rgba(168, 242, 122, 0.2);
    color: #fff;
    font-size: 23px;
    scroll-margin-top: 24px;
}

.manual-content h3 {
    margin: 30px 0 10px;
    color: #fff;
    font-size: 19px;
    scroll-margin-top: 24px;
}

.manual-content h4 {
    margin: 22px 0 8px;
    color: rgba(255, 255, 255, 0.96);
    font-size: 16px;
}

.manual-content p {
    margin: 0 0 12px;
}

.manual-content ul,
.manual-content ol {
    margin: 0 0 14px 22px;
    padding-left: 18px;
}

.manual-content li {
    margin-bottom: 7px;
}

.manual-content a {
    color: var(--color-primary, #a8f27a);
}

.manual-note {
    margin: 16px 0;
    padding: 13px 15px;
    border-left: 3px solid var(--color-primary, #a8f27a);
    border-radius: 0 6px 6px 0;
    background: rgba(168, 242, 122, 0.07);
}

.manual-image {
    display: block;
    width: auto;
    max-width: min(100%, 520px);
    max-height: 760px;
    margin: 14px auto 24px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
}

.manual-image-wide {
    width: 100%;
    max-width: 100%;
    max-height: none;
}

.manual-image-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 108px;
    margin: 14px 0 24px;
    border: 1px dashed rgba(255, 255, 255, 0.18);
    border-radius: 8px;
    color: rgba(255, 255, 255, 0.4);
    background: rgba(255, 255, 255, 0.02);
}

.manual-specs {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin: 14px 0 20px;
}

.manual-specs span {
    padding: 12px;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.045);
    text-align: center;
}

@media (max-width: 860px) {
    .manual-layout {
        grid-template-columns: 1fr;
    }

    .manual-nav {
        position: static;
        columns: 2;
    }

    .manual-nav h2 {
        column-span: all;
    }
}

@media (max-width: 600px) {
    .manual-section {
        padding: 28px 14px 48px;
    }

    .manual-content {
        padding: 26px 20px;
        font-size: 14px;
    }

    .manual-content h1 {
        font-size: 25px;
    }

    .manual-content h2 {
        font-size: 20px;
    }

    .manual-nav {
        columns: 1;
    }

    .manual-specs {
        grid-template-columns: 1fr;
    }
}