/* roulang page: index */
:root {
            --bg-deep: #0D0E11;
            --bg-work: #16181D;
            --bg-card: #1F222A;
            --bg-panel: #262A35;
            --primary-orange: #FF5500;
            --amber-yellow: #FF9900;
            --radar-green: #00E575;
            --titan-gray: #4A505E;
            --text-white: #EDEDED;
            --text-body: #A4B0BE;
            --text-dim: #697386;
            --mono-font: 'JetBrains Mono', 'Roboto Mono', 'SFMono-Regular', Menlo, Monaco, Consolas, monospace;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --cut-clip: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
            --cut-clip-sm: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
        }

        /* Global Reset & Tactical Overrides */
        * {
            box-sizing: border-box;
            border-radius: 0 !important;
        }

        body {
            background-color: var(--bg-deep);
            color: var(--text-body);
            font-family: var(--font-sans);
            font-size: 15.5px;
            line-height: 1.75;
            overflow-x: hidden;
            background-image: 
                radial-gradient(rgba(255, 85, 0, 0.04) 1px, transparent 0),
                linear-gradient(to right, rgba(74, 80, 94, 0.06) 1px, transparent 0),
                linear-gradient(to bottom, rgba(74, 80, 94, 0.06) 1px, transparent 0);
            background-size: 28px 28px, 56px 56px, 56px 56px;
        }

        h1, h2, h3, h4, h5, h6 {
            color: var(--text-white);
            font-weight: 750;
            letter-spacing: -0.02em;
            line-height: 1.3;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.2s ease-in-out;
        }

        .mono-num {
            font-family: var(--mono-font);
            letter-spacing: 0.05em;
        }

        /* Tactical Corner HUD Accents */
        .hud-bracket-box {
            position: relative;
            background: var(--bg-card);
            border: 1px solid var(--titan-gray);
            padding: 2rem;
            clip-path: var(--cut-clip);
        }

        .hud-bracket-box::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 12px;
            height: 12px;
            border-top: 2px solid var(--primary-orange);
            border-left: 2px solid var(--primary-orange);
            pointer-events: none;
        }

        .hud-bracket-box::after {
            content: "";
            position: absolute;
            bottom: 0;
            right: 0;
            width: 12px;
            height: 12px;
            border-bottom: 2px solid var(--radar-green);
            border-right: 2px solid var(--radar-green);
            pointer-events: none;
        }

        /* Section Layout */
        .section-wrap {
            padding: 5.5rem 0;
            position: relative;
            border-bottom: 1px solid rgba(74, 80, 94, 0.35);
        }

        .section-header {
            margin-bottom: 3.5rem;
            position: relative;
        }

        .section-meta-tag {
            font-family: var(--mono-font);
            font-size: 0.8rem;
            color: var(--primary-orange);
            text-transform: uppercase;
            letter-spacing: 0.12em;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 0.75rem;
            padding: 0.2rem 0.6rem;
            background: rgba(255, 85, 0, 0.1);
            border-left: 3px solid var(--primary-orange);
        }

        .section-title {
            font-size: 2.15rem;
            margin-bottom: 1rem;
        }

        .section-desc {
            color: var(--text-body);
            max-width: 820px;
            font-size: 1.05rem;
        }

        /* Tactical Button Systems */
        .btn-tactical-primary {
            background: var(--primary-orange);
            color: #000000;
            font-weight: 750;
            font-size: 0.95rem;
            padding: 0.85rem 2rem;
            clip-path: var(--cut-clip-sm);
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            box-shadow: 0 0 15px rgba(255, 85, 0, 0.35);
            transition: transform 0.15s ease, background 0.2s, box-shadow 0.2s;
        }

        .btn-tactical-primary:hover {
            background: #ff6a1f;
            color: #000;
            transform: translateY(-2px);
            box-shadow: 0 0 25px rgba(255, 85, 0, 0.55);
        }

        .btn-tactical-outline {
            background: transparent;
            color: var(--text-white);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.85rem 1.8rem;
            border: 1px solid var(--titan-gray);
            clip-path: var(--cut-clip-sm);
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            transition: all 0.2s ease;
        }

        .btn-tactical-outline:hover {
            border-color: var(--radar-green);
            color: var(--radar-green);
            background: rgba(0, 229, 117, 0.05);
            box-shadow: 0 0 15px rgba(0, 229, 117, 0.2);
        }

        /* Magazine Masthead Header */
        .masthead-top {
            background: #090A0D;
            border-bottom: 1px solid rgba(74, 80, 94, 0.4);
            padding: 0.65rem 0;
            font-size: 0.78rem;
            font-family: var(--mono-font);
            color: var(--text-dim);
        }

        .masthead-main {
            background: rgba(22, 24, 29, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 2px solid var(--primary-orange);
            position: sticky;
            top: 0;
            z-index: 1020;
            padding: 1.1rem 0;
        }

        .brand-logo-text {
            font-size: 1.65rem;
            font-weight: 850;
            color: var(--text-white);
            letter-spacing: -0.03em;
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .brand-logo-text span.accent {
            color: var(--primary-orange);
        }

        .brand-code-badge {
            font-size: 0.7rem;
            background: rgba(255, 85, 0, 0.15);
            color: var(--primary-orange);
            padding: 0.2rem 0.5rem;
            border: 1px solid rgba(255, 85, 0, 0.3);
            font-family: var(--mono-font);
            font-weight: normal;
        }

        .tactical-nav-links {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .tactical-nav-links li a {
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--text-body);
            position: relative;
            padding: 0.4rem 0.2rem;
        }

        .tactical-nav-links li a:hover,
        .tactical-nav-links li a.active {
            color: var(--primary-orange);
        }

        .tactical-nav-links li a.active::after {
            content: "";
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--primary-orange);
        }

        .nav-divider-tick {
            width: 1px;
            height: 16px;
            background: var(--titan-gray);
            margin: 0 0.5rem;
        }

        .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50% !important;
            background: var(--radar-green);
            display: inline-block;
            box-shadow: 0 0 8px var(--radar-green);
            animation: pulse-dot 2s infinite ease-in-out;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.4; }
        }

        /* Hero Banner */
        .hero-section {
            padding: 5.5rem 0 5rem;
            background: linear-gradient(180deg, rgba(22, 24, 29, 0.8) 0%, rgba(13, 14, 17, 1) 100%);
            border-bottom: 1px solid var(--titan-gray);
            position: relative;
        }

        .hero-corner-mark {
            position: absolute;
            top: 20px;
            right: 25px;
            font-family: var(--mono-font);
            color: var(--text-dim);
            font-size: 0.75rem;
            text-align: right;
        }

        .hero-h1 {
            font-size: 3.2rem;
            font-weight: 850;
            line-height: 1.18;
            margin-bottom: 1.5rem;
            color: #FFFFFF;
            text-transform: uppercase;
        }

        .hero-lead-text {
            font-size: 1.12rem;
            line-height: 1.8;
            color: var(--text-body);
            margin-bottom: 2.2rem;
        }

        .telemetry-grid {
            background: var(--bg-work);
            border: 1px solid var(--titan-gray);
            padding: 1.5rem;
            margin-top: 3rem;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            position: relative;
        }

        .telemetry-item {
            border-left: 2px solid var(--titan-gray);
            padding-left: 1.25rem;
        }

        .telemetry-item.highlight {
            border-left-color: var(--primary-orange);
        }

        .telemetry-val {
            font-family: var(--mono-font);
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1;
            margin-bottom: 0.4rem;
        }

        .telemetry-lbl {
            font-size: 0.82rem;
            color: var(--text-dim);
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        /* Tactical Cards */
        .tactical-card {
            background: var(--bg-work);
            border: 1px solid var(--titan-gray);
            padding: 1.8rem;
            transition: all 0.25s ease;
            position: relative;
            height: 100%;
            clip-path: var(--cut-clip-sm);
        }

        .tactical-card:hover {
            border-color: var(--primary-orange);
            background: var(--bg-card);
            transform: translateY(-4px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
        }

        .card-num-watermark {
            position: absolute;
            top: 15px;
            right: 15px;
            font-family: var(--mono-font);
            font-size: 1.5rem;
            color: rgba(74, 80, 94, 0.4);
            font-weight: 800;
        }

        /* Mockup Terminal Screen */
        .tactical-terminal-window {
            background: #08090C;
            border: 1px solid var(--titan-gray);
            clip-path: var(--cut-clip);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7);
        }

        .terminal-header-bar {
            background: #12141A;
            border-bottom: 1px solid var(--titan-gray);
            padding: 0.75rem 1.25rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-family: var(--mono-font);
            font-size: 0.8rem;
            color: var(--text-dim);
        }

        .terminal-content-area {
            padding: 2rem;
            font-family: var(--mono-font);
        }

        .console-line {
            display: flex;
            gap: 1rem;
            margin-bottom: 0.75rem;
            font-size: 0.88rem;
        }

        .console-time {
            color: var(--text-dim);
        }

        .console-tag-ok {
            color: var(--radar-green);
        }

        .console-tag-warn {
            color: var(--amber-yellow);
        }

        .console-msg {
            color: var(--text-white);
        }

        /* Benchmark Progress Scales */
        .bench-scale-wrap {
            margin-bottom: 1.5rem;
        }

        .bench-scale-title {
            display: flex;
            justify-content: space-between;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }

        .bench-scale-track {
            height: 10px;
            background: #111317;
            border: 1px solid var(--titan-gray);
            position: relative;
        }

        .bench-scale-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--amber-yellow), var(--primary-orange));
        }

        /* Plan & Pricing Tier Cards */
        .plan-card {
            background: var(--bg-work);
            border: 1px solid var(--titan-gray);
            padding: 2.5rem 2rem;
            position: relative;
            height: 100%;
            clip-path: var(--cut-clip);
        }

        .plan-card.featured {
            border: 2px solid var(--primary-orange);
            background: var(--bg-card);
            box-shadow: 0 0 30px rgba(255, 85, 0, 0.15);
        }

        .plan-badge-top {
            position: absolute;
            top: 0;
            right: 0;
            background: var(--primary-orange);
            color: #000;
            font-size: 0.75rem;
            font-weight: 800;
            padding: 0.3rem 0.8rem;
            font-family: var(--mono-font);
        }

        /* Accordion Tactical FAQ */
        .accordion-tactical .accordion-item {
            background: var(--bg-work);
            border: 1px solid var(--titan-gray);
            margin-bottom: 1rem;
            clip-path: var(--cut-clip-sm);
        }

        .accordion-tactical .accordion-button {
            background: var(--bg-work);
            color: var(--text-white);
            font-weight: 700;
            font-size:1.05rem;
            padding: 1.25rem 1.5rem;
            box-shadow: none;
            border: none;
        }

        .accordion-tactical .accordion-button:not(.collapsed) {
            background: var(--bg-card);
            color: var(--primary-orange);
            border-bottom: 1px solid var(--titan-gray);
        }

        .accordion-tactical .accordion-button::after {
            filter: invert(1) brightness(2);
            transform: scale(0.85);
        }

        .accordion-tactical .accordion-button:not(.collapsed)::after {
            filter: invert(45%) sepia(98%) saturate(1900%) hue-rotate(360deg) brightness(102%) contrast(105%);
        }

        .accordion-tactical .accordion-body {
            padding: 1.5rem;
            color: var(--text-body);
            background: var(--bg-deep);
            font-size: 0.95rem;
            line-height: 1.8;
        }

        /* Tactical Activation CTA Section */
        .cta-tactical-block {
            background: linear-gradient(135deg, #1A1D24 0%, #101217 100%);
            border: 1px solid var(--primary-orange);
            padding: 3.8rem 2.5rem;
            position: relative;
            clip-path: var(--cut-clip);
            box-shadow: 0 0 35px rgba(255, 85, 0, 0.12);
        }

        .cta-tactical-block::after {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: repeating-linear-gradient(45deg, var(--primary-orange), var(--primary-orange) 10px, #000 10px, #000 20px);
        }

        /* Footer System */
        .site-footer {
            background: #090A0D;
            border-top: 2px solid var(--titan-gray);
            padding: 4.5rem 0 2rem;
            position: relative;
        }

        .footer-rule-scale {
            position: absolute;
            top: -7px;
            left: 0;
            width: 100%;
            height: 6px;
            background-image: repeating-linear-gradient(90deg, var(--titan-gray) 0, var(--titan-gray) 1px, transparent 1px, transparent 12px);
        }

        .footer-col-title {
            color: var(--text-white);
            font-size: 1rem;
            font-weight: 750;
            margin-bottom: 1.4rem;
            font-family: var(--mono-font);
            letter-spacing: 0.05em;
            position: relative;
            padding-left: 0.75rem;
            border-left: 2px solid var(--primary-orange);
        }

        .footer-links-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links-list li {
            margin-bottom: 0.7rem;
        }

        .footer-links-list li a {
            color: var(--text-dim);
            font-size: 0.9rem;
        }

        .footer-links-list li a:hover {
            color: var(--primary-orange);
            padding-left: 4px;
        }

        .footer-bottom-bar {
            margin-top: 3.5rem;
            padding-top: 1.8rem;
            border-top: 1px solid rgba(74, 80, 94, 0.35);
            font-family: var(--mono-font);
            font-size: 0.8rem;
            color: var(--text-dim);
        }

        /* Responsive Breakpoints */
        @media (max-width: 991.98px) {
            .hero-h1 {
                font-size: 2.3rem;
            }
            .telemetry-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.25rem;
            }
            .tactical-nav-links {
                gap: 1rem;
            }
        }

        @media (max-width: 767.98px) {
            .hero-h1 {
                font-size: 1.85rem;
            }
            .section-title {
                font-size: 1.65rem;
            }
            .telemetry-grid {
                grid-template-columns: 1fr;
            }
            .masthead-main .d-flex {
                flex-direction: column;
                align-items: flex-start !important;
                gap: 1rem;
            }
            .tactical-nav-links {
                flex-wrap: wrap;
                width: 100%;
            }
            .section-wrap {
                padding: 3.5rem 0;
            }
        }

/* roulang page: category2 */
:root {
            --bg-deep: #0D0E11;
            --bg-work: #16181D;
            --bg-card: #1F222A;
            --bg-panel: #262A35;
            --primary-orange: #FF5500;
            --amber-yellow: #FF9900;
            --radar-green: #00E575;
            --titan-gray: #4A505E;
            --text-white: #EDEDED;
            --text-body: #A4B0BE;
            --text-dim: #697386;
            --mono-font: 'JetBrains Mono', 'Roboto Mono', 'SFMono-Regular', Menlo, Monaco, Consolas, monospace;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --cut-clip: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
            --cut-clip-sm: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
        }

        body {
            background-color: var(--bg-deep);
            color: var(--text-body);
            font-family: var(--font-sans);
            font-size: 15.5px;
            line-height: 1.75;
            overflow-x: hidden;
            background-image: 
                radial-gradient(rgba(255, 85, 0, 0.04) 1px, transparent 0),
                linear-gradient(to right, rgba(74, 80, 94, 0.06) 1px, transparent 0),
                linear-gradient(to bottom, rgba(74, 80, 94, 0.06) 1px, transparent 0);
            background-size: 28px 28px, 56px 56px, 56px 56px;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.2s ease-in-out;
        }

        .mono-num {
            font-family: var(--mono-font);
        }

        /* Tactical Button Systems */
        .btn-tactical-primary {
            background: var(--primary-orange);
            color: #000000;
            font-weight: 750;
            font-size: 0.92rem;
            padding: 0.75rem 1.8rem;
            clip-path: var(--cut-clip-sm);
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            box-shadow: 0 0 15px rgba(255, 85, 0, 0.35);
            transition: transform 0.15s ease, background 0.2s, box-shadow 0.2s;
        }

        .btn-tactical-primary:hover {
            background: #ff6a1f;
            color: #000000;
            transform: translateY(-2px);
            box-shadow: 0 0 25px rgba(255, 85, 0, 0.55);
        }

        .btn-tactical-outline {
            background: transparent;
            color: var(--text-white);
            font-weight: 600;
            font-size: 0.92rem;
            padding: 0.75rem 1.6rem;
            border: 1px solid var(--titan-gray);
            clip-path: var(--cut-clip-sm);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            transition: all 0.2s ease;
        }

        .btn-tactical-outline:hover {
            border-color: var(--radar-green);
            color: var(--radar-green);
            background: rgba(0, 229, 117, 0.05);
            box-shadow: 0 0 15px rgba(0, 229, 117, 0.2);
        }

        /* Magazine Masthead Header */
        .masthead-main {
            background: rgba(22, 24, 29, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 2px solid var(--primary-orange);
            position: sticky;
            top: 0;
            z-index: 1020;
            padding: 1.1rem 0;
        }

        .brand-logo-text {
            font-size: 1.55rem;
            font-weight: 850;
            color: var(--text-white);
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .brand-logo-text span.accent {
            color: var(--primary-orange);
        }

        .brand-code-badge {
            font-size: 0.7rem;
            background: rgba(255, 85, 0, 0.15);
            color: var(--primary-orange);
            padding: 0.2rem 0.5rem;
            border: 1px solid rgba(255, 85, 0, 0.3);
            font-family: var(--mono-font);
            font-weight: normal;
        }

        .tactical-nav-links {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .tactical-nav-links li a {
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--text-body);
            position: relative;
            padding: 0.4rem 0.2rem;
        }

        .tactical-nav-links li a:hover,
        .tactical-nav-links li a.active {
            color: var(--primary-orange);
        }

        .tactical-nav-links li a.active::after {
            content: "";
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--primary-orange);
        }

        .nav-divider-tick {
            width: 1px;
            height: 22px;
            background: var(--titan-gray);
            opacity: 0.6;
        }

        /* Section Wrappers */
        .tactical-section {
            padding: 4.5rem 0;
            position: relative;
            border-bottom: 1px solid rgba(74, 80, 94, 0.3);
        }

        .tactical-section-alt {
            background-color: rgba(22, 24, 29, 0.65);
        }

        .section-header-tag {
            font-family: var(--mono-font);
            font-size: 0.8rem;
            color: var(--primary-orange);
            display: inline-flex;
            align-items: center;
            gap: 0.45rem;
            padding: 0.25rem 0.65rem;
            background: rgba(255, 85, 0, 0.12);
            border-left: 3px solid var(--primary-orange);
            margin-bottom: 0.85rem;
        }

        .section-heading-title {
            font-size: 1.95rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 0.85rem;
            letter-spacing: -0.01em;
        }

        .section-heading-desc {
            color: var(--text-body);
            max-width: 800px;
            margin-bottom: 2.5rem;
            line-height: 1.8;
        }

        /* Block 1: Console Header */
        .console-header-block {
            padding: 3.5rem 0 3rem;
            background: linear-gradient(180deg, rgba(22, 24, 29, 0.95) 0%, rgba(13, 14, 17, 0.8) 100%);
            border-bottom: 1px solid rgba(74, 80, 94, 0.4);
            position: relative;
        }

        .console-header-block::after {
            content: "";
            position: absolute;
            bottom: -1px;
            left: 0;
            width: 180px;
            height: 3px;
            background: var(--primary-orange);
        }

        .console-badge-row {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 1rem;
        }

        .tactical-status-indicator {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-family: var(--mono-font);
            font-size: 0.75rem;
            color: var(--radar-green);
            background: rgba(0, 229, 117, 0.1);
            border: 1px solid rgba(0, 229, 117, 0.3);
            padding: 0.2rem 0.6rem;
        }

        .tactical-status-indicator .indicator-dot {
            width: 7px;
            height: 7px;
            background: var(--radar-green);
            border-radius: 50%;
            box-shadow: 0 0 6px var(--radar-green);
        }

        .console-h1-title {
            font-size: 2.35rem;
            font-weight: 850;
            color: var(--text-white);
            margin-bottom: 1rem;
            line-height: 1.25;
        }

        .console-desc-text {
            color: var(--text-body);
            font-size: 1.05rem;
            line-height: 1.8;
            max-width: 680px;
        }

        .console-hud-box {
            background: var(--bg-card);
            border: 1px solid var(--titan-gray);
            padding: 1.5rem;
            clip-path: var(--cut-clip);
            position: relative;
        }

        .console-hud-box::before {
            content: "+";
            position: absolute;
            top: 6px;
            left: 8px;
            color: var(--primary-orange);
            font-family: var(--mono-font);
            font-size: 0.8rem;
        }

        .console-hud-box::after {
            content: "+";
            position: absolute;
            bottom: 6px;
            right: 8px;
            color: var(--primary-orange);
            font-family: var(--mono-font);
            font-size: 0.8rem;
        }

        .hud-metric-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0.6rem 0;
            border-bottom: 1px dashed rgba(74, 80, 94, 0.4);
            font-family: var(--mono-font);
            font-size: 0.85rem;
        }

        .hud-metric-item:last-child {
            border-bottom: none;
        }

        /* Block 2: Tactical Filter Panel */
        .filter-panel-box {
            background: var(--bg-work);
            border: 1px solid var(--titan-gray);
            padding: 1.25rem 1.5rem;
            clip-path: var(--cut-clip-sm);
        }

        .filter-chip-group {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
        }

        .filter-chip {
            background: var(--bg-card);
            border: 1px solid var(--titan-gray);
            color: var(--text-body);
            padding: 0.4rem 1rem;
            font-size: 0.85rem;
            cursor: pointer;
            transition: all 0.2s;
            font-family: var(--mono-font);
        }

        .filter-chip:hover,
        .filter-chip.active {
            border-color: var(--primary-orange);
            color: var(--primary-orange);
            background: rgba(255, 85, 0, 0.08);
        }

        .filter-control-select {
            background: var(--bg-card);
            border: 1px solid var(--titan-gray);
            color: var(--text-white);
            font-family: var(--mono-font);
            font-size: 0.85rem;
            padding: 0.45rem 1rem;
            border-radius: 0;
        }

        .filter-control-select:focus {
            background: var(--bg-card);
            border-color: var(--primary-orange);
            box-shadow: 0 0 10px rgba(255, 85, 0, 0.25);
            color: var(--text-white);
        }

        /* Block 3: Tactical Grid Cards */
        .resource-card {
            background: var(--bg-work);
            border: 1px solid rgba(74, 80, 94, 0.4);
            padding: 1.75rem 1.5rem;
            clip-path: var(--cut-clip);
            position: relative;
            transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .resource-card:hover {
            transform: translateY(-4px);
            border-color: var(--primary-orange);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4), 0 0 15px rgba(255, 85, 0, 0.15);
        }

        .resource-card-code {
            font-family: var(--mono-font);
            font-size: 0.75rem;
            color: var(--amber-yellow);
            display: inline-block;
            margin-bottom: 0.5rem;
        }

        .resource-card-title {
            font-size: 1.25rem;
            font-weight: 750;
            color: var(--text-white);
            margin-bottom: 0.85rem;
        }

        .resource-card-desc {
            font-size: 0.92rem;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 1.25rem;
            flex-grow: 1;
        }

        .resource-meta-spec {
            background: var(--bg-deep);
            border-left: 2px solid var(--titan-gray);
            padding: 0.6rem 0.85rem;
            margin-bottom: 1.25rem;
            font-family: var(--mono-font);
            font-size: 0.8rem;
        }

        .tactical-pagination {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 0.5rem;
            margin-top: 3.5rem;
            font-family: var(--mono-font);
        }

        .page-link-tactical {
            background: var(--bg-work);
            border: 1px solid var(--titan-gray);
            color: var(--text-body);
            padding: 0.5rem 1rem;
            font-size: 0.88rem;
            cursor: pointer;
            transition: all 0.2s;
        }

        .page-link-tactical:hover,
        .page-link-tactical.active {
            border-color: var(--primary-orange);
            background: var(--primary-orange);
            color: #000000;
            font-weight: 700;
        }

        /* Block 4: Featured Spotlight */
        .spotlight-box {
            background: var(--bg-work);
            border: 1px solid var(--primary-orange);
            clip-path: var(--cut-clip);
            padding: 2.5rem;
            position: relative;
        }

        .spotlight-radar-grid {
            border: 1px dashed rgba(74, 80, 94, 0.6);
            background: rgba(13, 14, 17, 0.8);
            padding: 1.75rem;
            position: relative;
        }

        .hud-corner-tl { position: absolute; top: 0; left: 0; width: 8px; height: 8px; border-top: 2px solid var(--primary-orange); border-left: 2px solid var(--primary-orange); }
        .hud-corner-tr { position: absolute; top: 0; right: 0; width: 8px; height: 8px; border-top: 2px solid var(--primary-orange); border-right: 2px solid var(--primary-orange); }
        .hud-corner-bl { position: absolute; bottom: 0; left: 0; width: 8px; height: 8px; border-bottom: 2px solid var(--primary-orange); border-left: 2px solid var(--primary-orange); }
        .hud-corner-br { position: absolute; bottom: 0; right: 0; width: 8px; height: 8px; border-bottom: 2px solid var(--primary-orange); border-right: 2px solid var(--primary-orange); }

        /* Block 5: Tactical Table */
        .tactical-table-wrapper {
            background: var(--bg-work);
            border: 1px solid var(--titan-gray);
            clip-path: var(--cut-clip-sm);
            overflow-x: auto;
        }

        .tactical-table {
            width: 100%;
            margin-bottom: 0;
            color: var(--text-body);
            border-collapse: collapse;
        }

        .tactical-table thead {
            background: var(--bg-card);
            border-bottom: 2px solid var(--primary-orange);
            font-family: var(--mono-font);
            font-size: 0.82rem;
            color: var(--text-white);
            text-transform: uppercase;
        }

        .tactical-table th, 
        .tactical-table td {
            padding: 1rem 1.25rem;
            border-bottom: 1px solid rgba(74, 80, 94, 0.35);
            vertical-align: middle;
            white-space: nowrap;
        }

        .tactical-table tbody tr:hover {
            background: rgba(255, 85, 0, 0.03);
        }

        /* Block 6: Tactical FAQ */
        .tactical-accordion .accordion-item {
            background: var(--bg-work);
            border: 1px solid var(--titan-gray);
            margin-bottom: 1rem;
            clip-path: var(--cut-clip-sm);
        }

        .tactical-accordion .accordion-button {
            background: var(--bg-work);
            color: var(--text-white);
            font-weight: 700;
            font-size: 1.05rem;
            padding: 1.25rem 1.5rem;
            box-shadow: none;
        }

        .tactical-accordion .accordion-button:not(.collapsed) {
            color: var(--primary-orange);
            background: var(--bg-card);
            border-bottom: 1px solid rgba(74, 80, 94, 0.4);
        }

        .tactical-accordion .accordion-button::after {
            filter: invert(1) brightness(0.8);
        }

        .tactical-accordion .accordion-body {
            background: var(--bg-work);
            color: var(--text-body);
            line-height: 1.8;
            padding: 1.5rem;
            font-size: 0.95rem;
        }

        /* Block 7: Light CTA Form */
        .tactical-cta-card {
            background: linear-gradient(135deg, var(--bg-work) 0%, #1a1512 100%);
            border: 1px solid var(--primary-orange);
            clip-path: var(--cut-clip);
            padding: 3rem;
            position: relative;
        }

        .cta-form-input {
            background: var(--bg-deep);
            border: 1px solid var(--titan-gray);
            color: var(--text-white);
            padding: 0.85rem 1.25rem;
            font-family: var(--mono-font);
            font-size: 0.95rem;
            border-radius: 0;
            width: 100%;
        }

        .cta-form-input:focus {
            outline: none;
            border-color: var(--primary-orange);
            box-shadow: 0 0 15px rgba(255, 85, 0, 0.3);
            background: var(--bg-deep);
            color: var(--text-white);
        }

        /* Tactical Footer */
        .tactical-footer {
            background: #090A0D;
            border-top: 2px solid var(--titan-gray);
            padding: 4.5rem 0 2rem;
            position: relative;
        }

        .footer-brand-title {
            font-size: 1.45rem;
            font-weight: 850;
            color: var(--text-white);
            letter-spacing: -0.02em;
        }

        .footer-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 1.25rem;
            font-family: var(--mono-font);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            border-left: 2px solid var(--primary-orange);
            padding-left: 0.6rem;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li {
            margin-bottom: 0.75rem;
        }

        .footer-links a {
            color: var(--text-body);
            font-size: 0.92rem;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }

        .footer-links a:hover {
            color: var(--primary-orange);
            transform: translateX(4px);
        }

        .footer-bottom-bar {
            border-top: 1px solid rgba(74, 80, 94, 0.3);
            padding-top: 2rem;
            margin-top: 3.5rem;
            color: var(--text-dim);
        }

        @media (max-width: 991.98px) {
            .tactical-nav-links {
                gap: 0.85rem;
            }
            .console-h1-title {
                font-size: 1.85rem;
            }
            .spotlight-box {
                padding: 1.5rem;
            }
            .tactical-cta-card {
                padding: 2rem 1.5rem;
            }
        }

/* roulang page: category1 */
:root {
      --bg-deep: #0D0E11;
      --bg-work: #16181D;
      --bg-card: #1F222A;
      --bg-panel: #262A35;
      --primary-orange: #FF5500;
      --amber-yellow: #FF9900;
      --radar-green: #00E575;
      --titan-gray: #4A505E;
      --text-white: #EDEDED;
      --text-body: #A4B0BE;
      --text-dim: #697386;
      --mono-font: 'JetBrains Mono', 'Roboto Mono', Menlo, Monaco, Consolas, monospace;
      --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      --cut-clip: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
      --cut-clip-sm: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
    }

    body {
      background-color: var(--bg-deep);
      color: var(--text-body);
      font-family: var(--font-sans);
      font-size: 15.5px;
      line-height: 1.75;
      overflow-x: hidden;
      background-image: 
        radial-gradient(rgba(255, 85, 0, 0.04) 1px, transparent 0),
        linear-gradient(to right, rgba(74, 80, 94, 0.06) 1px, transparent 0),
        linear-gradient(to bottom, rgba(74, 80, 94, 0.06) 1px, transparent 0);
      background-size: 28px 28px, 56px 56px, 56px 56px;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.2s ease-in-out;
    }

    .mono-num {
      font-family: var(--mono-font);
    }

    /* Section Layout */
    .section-wrap {
      padding: 4.5rem 0;
      position: relative;
      border-bottom: 1px solid rgba(74, 80, 94, 0.35);
    }

    .section-header {
      margin-bottom: 2.8rem;
      position: relative;
    }

    .section-meta-tag {
      font-family: var(--mono-font);
      font-size: 0.8rem;
      color: var(--primary-orange);
      text-transform: uppercase;
      letter-spacing: 0.12em;
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      margin-bottom: 0.75rem;
      padding: 0.2rem 0.6rem;
      background: rgba(255, 85, 0, 0.1);
      border-left: 3px solid var(--primary-orange);
    }

    .section-title {
      font-size: 1.95rem;
      font-weight: 800;
      color: var(--text-white);
      margin-bottom: 0.85rem;
      letter-spacing: -0.02em;
    }

    .section-desc {
      color: var(--text-body);
      max-width: 820px;
      font-size: 1.02rem;
      line-height: 1.75;
    }

    /* Tactical Buttons */
    .btn-tactical-primary {
      background: var(--primary-orange);
      color: #000000;
      font-weight: 750;
      font-size: 0.92rem;
      padding: 0.75rem 1.8rem;
      clip-path: var(--cut-clip-sm);
      border: none;
      display: inline-flex;
      align-items: center;
      gap: 0.6rem;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      box-shadow: 0 0 15px rgba(255, 85, 0, 0.35);
      transition: transform 0.15s ease, background 0.2s, box-shadow 0.2s;
    }

    .btn-tactical-primary:hover {
      background: #ff6a1f;
      color: #000;
      transform: translateY(-2px);
      box-shadow: 0 0 25px rgba(255, 85, 0, 0.55);
    }

    .btn-tactical-outline {
      background: transparent;
      color: var(--text-white);
      font-weight: 600;
      font-size: 0.92rem;
      padding: 0.75rem 1.6rem;
      border: 1px solid var(--titan-gray);
      clip-path: var(--cut-clip-sm);
      display: inline-flex;
      align-items: center;
      gap: 0.6rem;
      transition: all 0.2s ease;
    }

    .btn-tactical-outline:hover {
      border-color: var(--radar-green);
      color: var(--radar-green);
      background: rgba(0, 229, 117, 0.05);
      box-shadow: 0 0 15px rgba(0, 229, 117, 0.2);
    }

    /* Masthead Navigation */
    .masthead-top {
      background: #090A0D;
      border-bottom: 1px solid rgba(74, 80, 94, 0.4);
      padding: 0.5rem 0;
      font-size: 0.78rem;
      font-family: var(--mono-font);
      color: var(--text-dim);
    }

    .masthead-main {
      background: rgba(22, 24, 29, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 2px solid var(--primary-orange);
      position: sticky;
      top: 0;
      z-index: 1020;
      padding: 1rem 0;
    }

    .brand-logo-text {
      font-size: 1.55rem;
      font-weight: 850;
      color: var(--text-white);
      letter-spacing: -0.03em;
      display: flex;
      align-items: center;
      gap: 0.75rem;
    }

    .brand-logo-text span.accent {
      color: var(--primary-orange);
    }

    .brand-code-badge {
      font-size: 0.7rem;
      background: rgba(255, 85, 0, 0.15);
      color: var(--primary-orange);
      padding: 0.2rem 0.5rem;
      border: 1px solid rgba(255, 85, 0, 0.3);
      font-family: var(--mono-font);
      font-weight: normal;
    }

    .tactical-nav-links {
      display: flex;
      align-items: center;
      gap: 1.5rem;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .tactical-nav-links li a {
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--text-body);
      position: relative;
      padding: 0.4rem 0.2rem;
    }

    .tactical-nav-links li a:hover,
    .tactical-nav-links li a.active {
      color: var(--primary-orange);
    }

    .tactical-nav-links li a.active::after {
      content: "";
      position: absolute;
      bottom: -6px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary-orange);
    }

    .nav-divider-tick {
      width: 1px;
      height: 22px;
      background: var(--titan-gray);
      margin: 0 0.5rem;
    }

    /* Category Hero Banner (Single Soldier HUD Control Unit) */
    .cat-console-banner {
      background: linear-gradient(180deg, #16181D 0%, #0D0E11 100%);
      padding: 3.5rem 0 3rem 0;
      border-bottom: 1px solid rgba(74, 80, 94, 0.45);
      position: relative;
    }

    .cat-console-banner::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 3px;
      background: linear-gradient(90deg, var(--primary-orange) 0%, transparent 60%);
    }

    .console-hud-box {
      background: rgba(31, 34, 42, 0.85);
      border: 1px solid var(--titan-gray);
      clip-path: var(--cut-clip);
      padding: 1.75rem;
      position: relative;
    }

    .console-hud-box::after {
      content: "STATUS: DEPLOYED";
      position: absolute;
      top: 10px;
      right: 15px;
      font-family: var(--mono-font);
      font-size: 0.72rem;
      color: var(--radar-green);
      letter-spacing: 0.1em;
    }

    .metric-badge-tactical {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      padding: 0.25rem 0.6rem;
      font-size: 0.78rem;
      font-family: var(--mono-font);
      background: #090A0D;
      border: 1px solid #333842;
      color: var(--amber-yellow);
    }

    /* Filter Bar */
    .tactical-filter-bar {
      background: var(--bg-work);
      border: 1px solid var(--titan-gray);
      padding: 1.25rem 1.5rem;
      clip-path: var(--cut-clip-sm);
    }

    .filter-label {
      font-family: var(--mono-font);
      font-size: 0.8rem;
      color: var(--text-dim);
      text-transform: uppercase;
      margin-bottom: 0.5rem;
      display: block;
    }

    .tactical-select, .tactical-input {
      background: #111317;
      border: 1px solid var(--titan-gray);
      color: var(--text-white);
      font-size: 0.88rem;
      padding: 0.5rem 0.8rem;
      border-radius: 0;
      font-family: var(--mono-font);
      width: 100%;
    }

    .tactical-select:focus, .tactical-input:focus {
      border-color: var(--primary-orange);
      box-shadow: 0 0 8px rgba(255, 85, 0, 0.25);
      outline: none;
      background: #151820;
      color: #FFF;
    }

    /* Tactical Cards Grid */
    .tactical-card {
      background: var(--bg-card);
      border: 1px solid rgba(74, 80, 94, 0.45);
      clip-path: var(--cut-clip);
      padding: 1.75rem;
      position: relative;
      height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: all 0.25s ease;
    }

    .tactical-card:hover {
      border-color: var(--primary-orange);
      transform: translateY(-3px);
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
      background: #232730;
    }

    .tactical-card .card-header-meta {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 1rem;
      padding-bottom: 0.75rem;
      border-bottom: 1px dashed rgba(74, 80, 94, 0.5);
    }

    .tactical-card .spec-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 0.75rem;
      background: #13151A;
      padding: 0.85rem;
      margin: 1.25rem 0;
      font-family: var(--mono-font);
      font-size: 0.8rem;
      border-left: 2px solid var(--amber-yellow);
    }

    .spec-grid-item span:first-child {
      display: block;
      color: var(--text-dim);
      font-size: 0.72rem;
    }

    .spec-grid-item span:last-child {
      color: var(--text-white);
      font-weight: 600;
    }

    /* Featured Deep Dive Schematic */
    .schematic-wrapper {
      background: #12141A;
      border: 1px solid var(--titan-gray);
      padding: 2.25rem;
      position: relative;
    }

    .schematic-wrapper::before {
      content: "[TOPOLOGY PROFILE]";
      position: absolute;
      top: -10px;
      left: 20px;
      background: var(--bg-deep);
      padding: 0 10px;
      font-family: var(--mono-font);
      font-size: 0.75rem;
      color: var(--primary-orange);
    }

    .node-track-box {
      background: #1A1D24;
      border-left: 3px solid var(--radar-green);
      padding: 1rem 1.25rem;
      margin-bottom: 1rem;
    }

    /* Tactical Comparison Table */
    .tactical-table-wrapper {
      border: 1px solid var(--titan-gray);
      background: var(--bg-card);
      overflow-x: auto;
    }

    .tactical-table {
      width: 100%;
      border-collapse: collapse;
      margin: 0;
      color: var(--text-body);
      font-size: 0.92rem;
    }

    .tactical-table th {
      background: #13151A;
      color: var(--text-white);
      font-family: var(--mono-font);
      font-weight: 700;
      padding: 1.1rem 1.25rem;
      border-bottom: 2px solid var(--primary-orange);
      text-transform: uppercase;
      font-size: 0.82rem;
      white-space: nowrap;
    }

    .tactical-table td {
      padding: 1.1rem 1.25rem;
      border-bottom: 1px solid rgba(74, 80, 94, 0.35);
      vertical-align: middle;
    }

    .tactical-table tbody tr:hover {
      background: rgba(255, 85, 0, 0.03);
    }

    /* Accordion FAQ */
    .tactical-accordion .accordion-item {
      background: var(--bg-card);
      border: 1px solid rgba(74, 80, 94, 0.4);
      margin-bottom: 1rem;
      border-radius: 0 !important;
    }

    .tactical-accordion .accordion-button {
      background: var(--bg-card);
      color: var(--text-white);
      font-size: 1.05rem;
      font-weight: 700;
      padding: 1.25rem 1.5rem;
      border-radius: 0 !important;
      box-shadow: none !important;
    }

    .tactical-accordion .accordion-button:not(.collapsed) {
      color: var(--primary-orange);
      background: #252932;
      border-bottom: 1px solid var(--titan-gray);
    }

    .tactical-accordion .accordion-button::after {
      filter: invert(1);
    }

    .tactical-accordion .accordion-body {
      padding: 1.5rem;
      color: var(--text-body);
      line-height: 1.8;
      background: #181A20;
    }

    /* Terminal CTA Box */
    .tactical-terminal-cta {
      background: linear-gradient(135deg, #17191F 0%, #101216 100%);
      border: 1px solid var(--primary-orange);
      clip-path: var(--cut-clip);
      padding: 3rem 2rem;
      position: relative;
    }

    .terminal-status-header {
      font-family: var(--mono-font);
      font-size: 0.82rem;
      color: var(--radar-green);
      margin-bottom: 1.5rem;
      display: flex;
      align-items: center;
      gap: 0.6rem;
    }

    /* Footer */
    .tactical-footer {
      background: #090A0D;
      border-top: 2px solid var(--titan-gray);
      padding: 5rem 0 2.5rem 0;
      position: relative;
    }

    .tactical-footer::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 3px;
      background: repeating-linear-gradient(90deg, var(--titan-gray), var(--titan-gray) 8px, transparent 8px, transparent 16px);
    }

    .footer-brand-title {
      font-size: 1.45rem;
      font-weight: 800;
      color: var(--text-white);
    }

    .footer-title {
      font-size: 0.92rem;
      font-weight: 700;
      color: var(--text-white);
      text-transform: uppercase;
      letter-spacing: 0.08em;
      margin-bottom: 1.25rem;
      font-family: var(--mono-font);
    }

    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }

    .footer-links li {
      margin-bottom: 0.65rem;
    }

    .footer-links a {
      color: var(--text-body);
      font-size: 0.9rem;
      display: inline-flex;
      align-items: center;
      gap: 0.45rem;
    }

    .footer-links a:hover {
      color: var(--primary-orange);
      transform: translateX(3px);
    }

    .footer-bottom-bar {
      border-top: 1px solid rgba(74, 80, 94, 0.4);
      padding-top: 2rem;
      margin-top: 3.5rem;
    }

    @media (max-width: 991.98px) {
      .tactical-nav-links {
        gap: 0.85rem;
      }
      .tactical-nav-links li a {
        font-size: 0.85rem;
      }
      .section-wrap {
        padding: 3.5rem 0;
      }
      .section-title {
        font-size: 1.65rem;
      }
    }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}