:root {
            --color-primary: #12aeea;
            --color-primary-dark: #087fc1;
            --color-secondary: #4ecdc4;
            --color-secondary-dark: #2faea6;
            --color-accent: #ffd83d;
            --color-accent-dark: #e8b900;
            --color-navy: #071a33;
            --color-sky: #e8f7ff;
            --color-cream: #fff7df;
            --color-text: #102033;
            --color-muted: #66758a;
            --color-border: rgba(7, 26, 51, 0.13);
            --radius-lg: 28px;
            --radius-xl: 44px;
            --shadow-soft: 0 14px 40px rgba(7, 26, 51, 0.10);
            --shadow-card: 0 24px 70px rgba(7, 26, 51, 0.13);
            --shadow-button: 0 14px 30px rgba(18, 174, 234, 0.30);
            --shadow-yellow: 0 12px 26px rgba(255, 216, 61, 0.34);
        }

        * {
            box-sizing: border-box;
        }

        html {
            width: 100%;
            max-width: 100%;
            overflow-x: hidden;
            font-size: 16px;
            scroll-behavior: smooth;
        }

        body {
            width: 100%;
            max-width: 100%;
            overflow-x: hidden;
            margin: 0;
            font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            background:
                radial-gradient(circle at 12% 8%, rgba(18, 174, 234, 0.22), transparent 28%),
                radial-gradient(circle at 86% 14%, rgba(255, 216, 61, 0.28), transparent 24%),
                radial-gradient(circle at 12% 92%, rgba(78, 205, 196, 0.22), transparent 24%),
                linear-gradient(180deg, #f7fdff 0%, #edf8ff 52%, #fff7df 100%);
            color: var(--color-text);
            line-height: 1.55;
        }

        body::before {
            content: "";
            display: block;
            height: 7px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-secondary), var(--color-accent));
        }

        body::after {
            content: "";
            position: fixed;
            right: -150px;
            bottom: -150px;
            z-index: -1;
            width: 420px;
            height: 420px;
            border-radius: 999px;
            background: rgba(18, 174, 234, 0.12);
            pointer-events: none;
        }

        a {
            color: var(--color-navy);
            font-weight: 750;
        }

        a:hover {
            color: var(--color-primary-dark);
        }

        img {
            max-width: 100%;
        }

        .page-shell {
            width: min(100% - 28px, 1120px);
            margin: 18px auto 0;
                        max-width:1040px;
        }

        .topbar {
            position: sticky;
            top: 10px;
            z-index: 100;
            display: flex;
            align-items: center;
            justify-content: flex-start;
            gap: 14px;
            padding: 12px 14px 12px 16px;
            background: rgba(255, 255, 255, 0.84);
            border: 1px solid rgba(255, 255, 255, 0.9);
            border-radius: 999px;
            box-shadow: var(--shadow-soft);
            backdrop-filter: blur(18px);
        }

        .brand {
            flex: 1 1 auto;
            min-width: 0;
            display: inline-flex;
            align-items: center;
            gap: 18px;
            margin-right: auto;
            color: var(--color-navy);
            text-decoration: none;
            font-weight: 950;
            letter-spacing: -0.04em;
            white-space: nowrap;
        }

        .brand:hover {
            color: var(--color-navy);
        }

        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 46px;
            height: 46px;
            background: transparent;
            border: 0;
            border-radius: 0;
            overflow: visible;
            box-shadow: none;
            flex: 0 0 auto;
        }

        .brand-mark img {
            width: 70px;
            height: 70px;
            max-width: none;
            display: block;
            object-fit: contain;
        }

        .brand-fallback {
            color: var(--color-primary);
            font-size: 1.25rem;
            line-height: 1;
        }

        .top-actions {
            flex: 0 0 auto;
            margin-left: auto;
            display: inline-flex;
            align-items: center;
            justify-content: flex-end;
            gap: 9px;
            flex-wrap: nowrap;
        }

        .button,
        button {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 48px;
            padding: 12px 20px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            color: #ffffff;
            text-decoration: none;
            border: 0;
            border-radius: 999px;
            cursor: pointer;
            font: inherit;
            font-weight: 900;
            box-shadow: var(--shadow-button);
            transition: transform 0.15s ease, filter 0.15s ease, box-shadow 0.15s ease;
        }

        .button:hover,
        button:hover {
            color: #ffffff;
            transform: translateY(-2px);
            filter: saturate(1.06);
            box-shadow: 0 18px 38px rgba(18, 174, 234, 0.36);
        }

        .button.ghost {
            background: #ffffff;
            color: var(--color-navy);
            border: 1px solid var(--color-border);
            box-shadow: 0 12px 26px rgba(7, 26, 51, 0.10);
        }

        .button.ghost:hover {
            color: var(--color-navy);
            background: var(--color-cream);
        }

        .top-actions .button {
            display: inline-flex !important;
            width: auto;
            min-height: 40px;
            padding: 9px 14px;
            font-size: 0.9rem;
            white-space: nowrap;
        }

        .top-actions .button.is-active,
        .top-actions .button[aria-current="page"] {
            background: var(--color-accent);
            color: var(--color-navy);
            box-shadow: var(--shadow-yellow);
        }

        .container {
            width: min(100% - 28px, 1120px);
            margin: 28px auto;
                        max-width:1040px;
        }

        .icon {
            width: 1.25em;
            height: 1.25em;
            flex: 0 0 auto;
            fill: none;
            stroke: currentColor;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .manual-image {
            margin-bottom: 22px;
            padding: clamp(12px, 2vw, 18px);
            background:
                linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(255, 255, 255, 0.86)),
                radial-gradient(circle at 92% 12%, rgba(255, 216, 61, 0.22), transparent 28%);
            border: 1px solid rgba(255, 255, 255, 0.82);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-card);
            overflow: hidden;
        }

        .manual-image-slot {
            width: 100%;
            min-height: clamp(240px, 38vw, 480px);
            display: grid;
            place-items: center;
            padding: clamp(24px, 5vw, 54px);
            text-align: center;
            border-radius: calc(var(--radius-xl) - 10px);
            border: 1px dashed rgba(18, 174, 234, 0.35);
            background:
                linear-gradient(135deg, rgba(255, 216, 61, 0.18), rgba(18, 174, 234, 0.14)),
                #ffffff;
            color: var(--color-muted);
            box-shadow: inset 0 0 0 8px rgba(255, 255, 255, 0.36);
        }

        .manual-image-slot strong {
            display: block;
            margin-bottom: 6px;
            color: var(--color-navy);
            font-size: clamp(1.15rem, 2.5vw, 1.55rem);
            letter-spacing: -0.03em;
        }

        .manual-image-slot.has-image {
            overflow: hidden;
            padding: 0;
            border-style: solid;
            background: #ffffff;
            box-shadow: var(--shadow-card);
        }

        .manual-image-slot.has-image img {
            width: 100%;
            height: 100%;
            min-height: clamp(240px, 38vw, 480px);
            display: block;
            object-fit: cover;
        }

        .manual-page {
            padding: clamp(24px, 5vw, 46px);
            background:
                linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(255, 255, 255, 0.88)),
                radial-gradient(circle at 92% 12%, rgba(255, 216, 61, 0.20), transparent 28%);
            border: 1px solid rgba(255, 255, 255, 0.82);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-card);
        }

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            width: fit-content;
            padding: 8px 12px;
            margin-bottom: 14px;
            background: var(--color-sky);
            border: 1px solid rgba(18, 174, 234, 0.18);
            border-radius: 999px;
            color: var(--color-primary-dark);
            font-size: 0.9rem;
            font-weight: 900;
        }

        h1,
        h2,
        h3 {
            margin-top: 0;
            color: var(--color-navy);
            line-height: 1.12;
        }

        h1 {
            max-width: 900px;
            margin-bottom: 12px;
            font-size: clamp(2rem, 5vw, 3.8rem);
            letter-spacing: -0.06em;
        }

        h1::after {
            content: "";
            display: block;
            width: 112px;
            height: 10px;
            margin-top: 18px;
            border-radius: 999px;
            background: linear-gradient(90deg, var(--color-accent), var(--color-secondary), var(--color-primary));
        }

        h2 {
            margin-bottom: 12px;
            font-size: clamp(1.35rem, 3vw, 2rem);
            letter-spacing: -0.035em;
        }

        h3 {
            margin-bottom: 5px;
            font-size: 1.08rem;
            letter-spacing: -0.02em;
        }

        p {
            margin-top: 0;
            color: var(--color-muted);
        }

        .lead {
            max-width: 830px;
            margin-bottom: 0;
            font-size: clamp(1rem, 2vw, 1.18rem);
        }

        .manual-intro {
            display: grid;
            grid-template-columns: minmax(0, 1.2fr) minmax(260px, 0.8fr);
            gap: 18px;
            margin-top: 24px;
            align-items: start;
        }

        .intro-box,
        .manual-block,
        .faq-section {
            background: #ffffff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            box-shadow: 0 10px 28px rgba(7, 26, 51, 0.07);
        }

        .intro-box {
            padding: clamp(17px, 3vw, 24px);
        }

        .intro-box p:last-child {
            margin-bottom: 0;
        }

        .quick-list {
            display: grid;
            gap: 9px;
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .quick-list li {
            display: grid;
            grid-template-columns: 22px 1fr;
            gap: 9px;
            color: var(--color-muted);
        }

        .quick-list li::before {
            content: "✓";
            width: 22px;
            height: 22px;
            display: grid;
            place-items: center;
            border-radius: 50%;
            background: rgba(78, 205, 196, 0.16);
            color: var(--color-secondary-dark);
            font-weight: 950;
            font-size: 0.82rem;
        }

        .manual-block,
        .faq-section {
            margin-top: 24px;
            padding: clamp(18px, 3vw, 26px);
        }

        .manual-nav {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 18px;
        }

        .manual-nav a {
            display: inline-flex;
            align-items: center;
            min-height: 38px;
            padding: 8px 12px;
            border-radius: 999px;
            background: #ffffff;
            border: 1px solid rgba(7, 26, 51, 0.10);
            color: var(--color-primary-dark);
            text-decoration: none;
            font-size: 0.9rem;
            font-weight: 900;
            box-shadow: 0 8px 18px rgba(7, 26, 51, 0.045);
        }

        .manual-nav a:hover {
            background: var(--color-sky);
            color: var(--color-navy);
        }

        .steps {
            display: grid;
            gap: 0;
            margin: 18px 0 0;
        }

        .step {
            display: grid;
            grid-template-columns: 42px 1fr;
            gap: 12px;
            align-items: flex-start;
            padding: 15px 0;
            border-bottom: 1px solid rgba(7, 26, 51, 0.08);
        }

        .step:first-child {
            padding-top: 0;
        }

        .step:last-child {
            padding-bottom: 0;
            border-bottom: 0;
        }

        .step-number {
            width: 42px;
            height: 42px;
            display: grid;
            place-items: center;
            border-radius: 50%;
            background: var(--color-secondary);
            color: #ffffff;
            font-weight: 950;
            box-shadow: 0 8px 18px rgba(78, 205, 196, 0.25);
        }

        .step p {
            margin-bottom: 0;
        }

        .step small {
            display: block;
            margin-top: 5px;
            color: var(--color-muted);
            line-height: 1.45;
        }

        .manual-table-wrap {
            width: 100%;
            overflow-x: auto;
            margin-top: 16px;
            border: 1px solid rgba(7, 26, 51, 0.09);
            border-radius: 22px;
            background: rgba(255, 255, 255, 0.74);
        }

        .manual-table {
            width: 100%;
            min-width: 760px;
            border-collapse: collapse;
            background: #ffffff;
        }

        .manual-table th,
        .manual-table td {
            padding: 13px 12px;
            border-bottom: 1px solid rgba(7, 26, 51, 0.09);
            text-align: left;
            vertical-align: top;
        }

        .manual-table tr:last-child td {
            border-bottom: 0;
        }

        .manual-table th {
            color: var(--color-muted);
            font-size: 0.82rem;
            font-weight: 950;
            text-transform: uppercase;
            letter-spacing: 0.045em;
            white-space: nowrap;
        }

        .manual-table td {
            color: var(--color-text);
        }

        .manual-table td:first-child {
            color: var(--color-navy);
            font-weight: 900;
            white-space: nowrap;
        }

        .note {
            margin-top: 18px;
            padding: 16px;
            border-radius: var(--radius-lg);
            background: var(--color-cream);
            border: 1px solid var(--color-border);
            color: var(--color-muted);
        }

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

        .faq-list {
            display: grid;
            gap: 10px;
            margin-top: 16px;
        }

        .faq-item {
            padding: 0 0 12px;
            border-bottom: 1px solid rgba(7, 26, 51, 0.08);
        }

        .faq-item:last-child {
            padding-bottom: 0;
            border-bottom: 0;
        }

        .faq-item h3 {
            margin-bottom: 6px;
        }

        .faq-item p {
            margin-bottom: 0;
        }

        @media (max-width: 840px) {
            .manual-intro {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 700px) {
            body::before {
                height: 5px;
            }

            .topbar {
                top: 8px;
                gap: 8px;
                padding: 10px 10px 10px 12px;
                border-radius: 24px;
            }

            .brand {
                gap: 12px;
                font-size: 1.05rem;
            }

            .brand span:last-child {
                max-width: 116px;
                overflow: hidden;
                text-overflow: ellipsis;
            }

            .top-actions {
                gap: 6px;
            }

            .top-actions .button {
                min-height: 38px;
                padding: 8px 10px;
                font-size: 0.82rem;
            }
        }

        @media (max-width: 560px) {
            .page-shell,
            .container {
                width: min(100% - 18px, 1120px);
            }

            .manual-page {
                padding: 20px;
                border-radius: 24px;
            }

            .manual-image {
                padding: 10px;
                border-radius: 24px;
            }

            .manual-block,
            .faq-section,
            .intro-box {
                padding: 18px;
            }

            .step {
                grid-template-columns: 36px 1fr;
            }

            .step-number {
                width: 36px;
                height: 36px;
            }
        }

        @media (max-width: 440px) {
            .brand span:last-child {
                display: none;
            }

            .top-actions .button {
                padding: 8px 9px;
                font-size: 0.79rem;
            }
        }
    
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 16px;
            margin-top: 24px;
        }

        .guide-card {
            position: relative;
            display: grid;
            grid-template-columns: 54px minmax(0, 1fr);
            gap: 14px;
            align-items: flex-start;
            padding: 18px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            background: #ffffff;
            text-decoration: none;
            box-shadow: 0 10px 28px rgba(7, 26, 51, 0.07);
            transition: transform 0.16s ease, border-color 0.16s ease, box-shadow 0.16s ease;
        }

        .guide-card:hover {
            transform: translateY(-2px);
            border-color: rgba(18, 174, 234, 0.35);
            box-shadow: 0 18px 42px rgba(7, 26, 51, 0.12);
            color: var(--color-navy);
        }

        .guide-icon {
            width: 54px;
            height: 54px;
            display: grid;
            place-items: center;
            border-radius: 20px;
            background:
                linear-gradient(135deg, rgba(255, 216, 61, 0.28), rgba(18, 174, 234, 0.14)),
                #ffffff;
            color: var(--color-primary-dark);
            border: 1px solid rgba(18, 174, 234, 0.16);
        }

        .guide-card h2 {
            margin: 0 0 6px;
            font-size: 1.12rem;
            letter-spacing: -0.025em;
        }

        .guide-card p {
            margin: 0;
            color: var(--color-muted);
            font-size: 0.94rem;
            line-height: 1.45;
        }

        .guide-arrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 12px;
            color: var(--color-primary-dark);
            font-size: 0.9rem;
            font-weight: 950;
        }

        .guide-intro-note {
            margin-top: 22px;
            padding: 16px;
            border: 1px solid rgba(18, 174, 234, 0.18);
            border-radius: var(--radius-lg);
            background: var(--color-sky);
            color: var(--color-muted);
        }

        .guide-intro-note strong {
            color: var(--color-navy);
        }

        @media (max-width: 760px) {
            .guide-grid {
                grid-template-columns: 1fr;
            }

            .guide-card {
                grid-template-columns: 46px minmax(0, 1fr);
            }

            .guide-icon {
                width: 46px;
                height: 46px;
                border-radius: 17px;
            }
        }