.manual-main {
    padding-bottom: 96px;
}

.manual-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.7fr);
    gap: clamp(42px, 8vw, 100px);
    align-items: center;
    padding: clamp(70px, 10vw, 126px) 0 92px;
}

.manual-hero h1 {
    max-width: 820px;
    margin-bottom: 24px;
    font-size: clamp(3.2rem, 8vw, 7rem);
    line-height: 0.9;
}

.manual-hero h1 span {
    display: block;
    margin-top: 18px;
    color: var(--purple);
    font-size: clamp(1.35rem, 3vw, 2.4rem);
    letter-spacing: 0.02em;
    line-height: 1.1;
}

.manual-lead {
    max-width: 680px;
    margin-bottom: 0;
    color: #b5cbd8;
    font-size: clamp(1.05rem, 1.8vw, 1.28rem);
}

.quick-start {
    padding: 27px;
    border: 1px solid rgba(244, 239, 85, 0.35);
    border-left: 7px solid var(--yellow);
    border-radius: 6px 28px 6px 6px;
    background: linear-gradient(145deg, rgba(244, 239, 85, 0.09), transparent 38%), var(--panel);
}

.quick-start h2 {
    margin-bottom: 22px;
    color: var(--yellow);
    font: 900 0.72rem/1.2 ui-monospace, SFMono-Regular, Menlo, monospace;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.quick-start ol {
    display: grid;
    gap: 18px;
    margin: 0;
    padding: 0;
    counter-reset: quick-step;
    list-style: none;
}

.quick-start li {
    display: grid;
    grid-template-columns: 30px 1fr;
    gap: 12px;
    align-items: start;
    color: var(--muted);
    font-size: 0.88rem;
    counter-increment: quick-step;
}

.quick-start li::before {
    display: grid;
    width: 30px;
    height: 30px;
    place-items: center;
    border-radius: 50%;
    background: var(--yellow);
    color: #05070a;
    content: counter(quick-step, decimal-leading-zero);
    font: 950 0.62rem/1 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.quick-start strong {
    display: block;
    margin-bottom: 2px;
    color: var(--text);
}

.manual-strip {
    margin-bottom: 0;
}

.manual-layout {
    display: grid;
    grid-template-columns: 210px minmax(0, 1fr);
    gap: clamp(40px, 7vw, 88px);
    align-items: start;
    padding-top: 58px;
}

.manual-toc {
    position: sticky;
    top: 28px;
    padding: 20px 17px;
    border: 1px solid var(--line);
    border-radius: 5px 22px 5px 5px;
    background: rgba(10, 16, 24, 0.92);
    backdrop-filter: blur(14px);
}

.manual-toc > span {
    display: block;
    margin-bottom: 15px;
    color: var(--orange);
    font: 900 0.6rem/1 ui-monospace, SFMono-Regular, Menlo, monospace;
    letter-spacing: 0.15em;
}

.manual-toc nav {
    display: grid;
    gap: 4px;
}

.manual-toc a {
    padding: 9px 10px;
    border-radius: 4px 12px 4px 4px;
    color: var(--muted);
    font-size: 0.76rem;
    font-weight: 800;
    text-decoration: none;
}

.manual-toc a:hover,
.manual-toc a:focus-visible {
    background: #121d27;
    color: var(--cyan);
}

.manual-content {
    min-width: 0;
}

.manual-section {
    --accent: var(--blue);
    display: grid;
    grid-template-columns: minmax(270px, 0.72fr) minmax(0, 1.28fr);
    gap: clamp(34px, 6vw, 70px);
    align-items: start;
    padding: 58px 0 112px;
    scroll-margin-top: 24px;
}

.manual-section:first-child {
    padding-top: 0;
}

.manual-section + .manual-section {
    border-top: 1px solid var(--line);
}

.manual-section--yellow { --accent: var(--yellow); }
.manual-section--red { --accent: var(--red); }
.manual-section--blue { --accent: var(--blue); }
.manual-section--orange { --accent: var(--orange); }
.manual-section--purple { --accent: var(--purple); }
.manual-section--cyan { --accent: var(--cyan); }

.manual-visual {
    display: block;
    padding: 9px;
    border: 1px solid color-mix(in srgb, var(--accent) 45%, var(--line));
    border-radius: 26px 7px 26px 7px;
    background: #020304;
    box-shadow: 0 26px 70px rgba(0, 0, 0, 0.4);
    text-decoration: none;
}

.manual-visual img {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: auto;
    border-radius: 18px 4px 18px 4px;
    object-fit: contain;
}

.manual-visual span {
    display: block;
    padding: 13px 9px 5px;
    color: var(--accent);
    font: 900 0.58rem/1.3 ui-monospace, SFMono-Regular, Menlo, monospace;
    letter-spacing: 0.12em;
    text-align: center;
    text-transform: uppercase;
}

.manual-copy .section-index {
    color: var(--accent);
}

.manual-copy h2 {
    margin-bottom: 20px;
    font-size: clamp(2.2rem, 5vw, 4.25rem);
}

.manual-intro {
    margin-bottom: 34px;
    color: #b5cbd8;
    font-size: 1.08rem;
}

.manual-points {
    display: grid;
    gap: 10px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.manual-points li {
    position: relative;
    padding: 18px 19px 18px 47px;
    border: 1px solid var(--line);
    border-radius: 5px 18px 5px 5px;
    background: var(--panel);
    color: var(--muted);
    font-size: 0.9rem;
}

.manual-points li::before {
    position: absolute;
    top: 22px;
    left: 19px;
    width: 12px;
    height: 5px;
    border-radius: 999px;
    background: var(--accent);
    content: "";
}

.manual-points strong {
    display: block;
    margin-bottom: 4px;
    color: var(--text);
    font-size: 0.96rem;
}

.manual-note {
    margin: 25px 0 0;
    padding: 17px 19px;
    border-left: 4px solid var(--accent);
    background: color-mix(in srgb, var(--accent) 8%, var(--panel));
    color: #aabdc8;
    font-size: 0.8rem;
}

.manual-note strong {
    color: var(--accent);
}

.manual-copy .radio-image-note {
    margin: -16px 0 27px;
    color: #7e929f;
    font-size: 0.74rem;
}

.radio-steps {
    display: grid;
    gap: 9px;
    margin: 26px 0 32px;
    padding: 0;
    counter-reset: radio-step;
    list-style: none;
}

.radio-steps li {
    position: relative;
    padding: 16px 17px 16px 50px;
    border: 1px solid var(--line);
    border-radius: 5px 17px 5px 5px;
    background: var(--panel);
    color: var(--muted);
    font-size: 0.86rem;
    counter-increment: radio-step;
}

.radio-steps li::before {
    position: absolute;
    top: 17px;
    left: 17px;
    color: var(--orange);
    content: counter(radio-step, decimal-leading-zero);
    font: 900 0.62rem/1 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.radio-steps strong {
    display: block;
    margin-bottom: 3px;
    color: var(--text);
}

.radio-troubleshooting {
    padding: 22px;
    border: 1px solid rgba(255, 156, 51, 0.35);
    border-radius: 5px 22px 5px 5px;
    background: rgba(255, 156, 51, 0.05);
}

.radio-troubleshooting h4 {
    margin: 0 0 15px;
    color: var(--orange);
    font-size: 1rem;
}

.radio-troubleshooting details {
    border-top: 1px solid var(--line);
}

.radio-troubleshooting summary {
    padding: 13px 24px 13px 0;
    color: var(--text);
    font-size: 0.86rem;
    font-weight: 800;
    cursor: pointer;
}

.radio-troubleshooting details p {
    margin: -2px 0 14px;
    color: var(--muted);
    font-size: 0.8rem;
}

.common-controls {
    margin-top: 34px;
    padding-top: 28px;
    border-top: 1px solid var(--line);
}

.common-controls h3 {
    margin-bottom: 18px;
    font-size: 1.16rem;
}

.control-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 9px;
}

.control-card {
    padding: 16px;
    border-radius: 4px 16px 4px 4px;
    background: var(--panel-2);
}

.control-card b {
    display: block;
    margin-bottom: 5px;
    color: var(--cyan);
    font: 900 0.69rem/1.2 ui-monospace, SFMono-Regular, Menlo, monospace;
    letter-spacing: 0.08em;
}

.control-card p {
    margin-bottom: 0;
    color: var(--muted);
    font-size: 0.8rem;
}

.manual-help {
    margin: 15px 0 0;
    padding: clamp(28px, 5vw, 52px);
    border: 1px solid #354452;
    border-radius: 34px 7px 34px 7px;
    background: radial-gradient(circle at 100% 0, rgba(165, 156, 255, 0.14), transparent 40%), var(--panel);
}

.manual-help h2 {
    margin-bottom: 16px;
    font-size: clamp(1.8rem, 4vw, 3rem);
}

.manual-help p {
    max-width: 760px;
    color: var(--muted);
}

.manual-help .text-link {
    display: inline-block;
    margin-top: 8px;
}

@media (max-width: 960px) {
    .manual-hero { grid-template-columns: 1fr; }
    .quick-start { max-width: 650px; }
    .manual-layout { grid-template-columns: 1fr; }
    .manual-toc { position: static; overflow-x: auto; }
    .manual-toc nav { display: flex; width: max-content; }
    .manual-toc a { white-space: nowrap; }
}

@media (max-width: 760px) {
    .topnav > a:nth-child(2) { display: inline; }
    .topnav > a:nth-child(3), .topnav > a:nth-child(4) { display: none; }
}

@media (max-width: 700px) {
    .manual-main { padding-bottom: 70px; }
    .manual-hero { gap: 35px; padding: 55px 0 68px; }
    .manual-hero h1 { font-size: clamp(3.15rem, 17vw, 5.3rem); }
    .manual-layout { gap: 26px; padding-top: 34px; }
    .manual-section { grid-template-columns: 1fr; padding: 44px 0 82px; }
    .manual-visual { width: min(100%, 440px); margin-inline: auto; }
    .manual-copy h2 { font-size: clamp(2.2rem, 12vw, 3.3rem); }
    .control-grid { grid-template-columns: 1fr; }
}