:root {
            --bg: #0b0a08;
            --surface: #1c1913;
            --surface-alt: #2a251c;
            --accent: #d98e32;
            --accent-hover: #f2a641;
            --accent2: #6cb4ee;
            --text: #faf7f0;
            --muted: #a89f91;
            --font-display: 'Anton', sans-serif;
            --font-body: 'Barlow', sans-serif;
            --container-px: 20px;
            --section-gap: 3rem;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 16px;
            --keris-cut: polygon(0 0, 100% 0, 100% calc(100% - 15px), calc(100% - 15px) 100%, 0 100%);
            --keris-cut-reverse: polygon(15px 0, 100% 0, 100% 100%, 0 100%, 0 15px);
        }

        /* Reset & Base */
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body {
            font-family: var(--font-body);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            /* Subtle colosseum grid pattern */
            background-image:
                linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
            background-size: 40px 40px;
        }
        a { color: var(--accent2); text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: var(--accent); }
        .container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 var(--container-px); }

        h1, h2, h3, .brand, .footer-brand {
            font-family: var(--font-display);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            font-weight: 400;
        }

        /* Header (Verbatim Support) */
        header {
            background-color: rgba(11, 10, 8, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 2px solid var(--surface-alt);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }
        .brand {
            font-size: 1.8rem;
            color: var(--accent);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .menu-toggle {
            background: none;
            border: none;
            color: var(--text);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 10px;
            display: block;
        }
        .nav-links {
            display: none;
            position: absolute;
            top: 70px;
            left: 0;
            width: 100%;
            background-color: var(--surface);
            flex-direction: column;
            border-bottom: 2px solid var(--accent);
        }
        .nav-links.active { display: flex; }
        .nav-links a {
            padding: 15px var(--container-px);
            color: var(--text);
            font-weight: 600;
            border-bottom: 1px solid var(--surface-alt);
            text-transform: uppercase;
            font-size: 0.9rem;
            letter-spacing: 1px;
        }
        .nav-links a:hover { color: var(--accent); background-color: var(--surface-alt); }

        @media (min-width: 992px) {
            .menu-toggle { display: none; }
            .nav-links {
                display: flex;
                position: static;
                width: auto;
                background: none;
                flex-direction: row;
                border: none;
                gap: 20px;
            }
            .nav-links a {
                padding: 0;
                border: none;
                color: var(--muted);
            }
            .nav-links a:hover { background: none; }
        }

        /* Hero Section */
        .hero {
            padding: 4rem 0 3rem;
            background: radial-gradient(circle at top center, var(--surface) 0%, var(--bg) 100%);
            border-bottom: 1px solid var(--surface-alt);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: 0; left: 50%; transform: translateX(-50%);
            width: 100%; max-width: 800px; height: 100%;
            background: radial-gradient(ellipse at top, rgba(217, 142, 50, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }
        .breadcrumb {
            font-size: 0.85rem;
            color: var(--muted);
            margin-bottom: 1.5rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            font-weight: 500;
            position: relative;
            z-index: 2;
        }
        .hero h1 {
            font-size: clamp(2.5rem, 5vw, 4rem);
            color: var(--text);
            margin-bottom: 1.5rem;
            line-height: 1.1;
            text-shadow: 0 4px 20px rgba(0,0,0,0.5);
            position: relative;
            z-index: 2;
        }
        .hero h1 span { color: var(--accent); }
        .meta-chips {
            display: flex;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
            position: relative;
            z-index: 2;
        }
        .chip {
            background-color: rgba(28, 25, 19, 0.8);
            border: 1px solid var(--accent);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .chip::before {
            content: '';
            display: inline-block;
            width: 6px; height: 6px;
            background-color: var(--accent2);
            border-radius: 50%;
        }

        /* Main Content Layout */
        .content-area {
            padding: var(--section-gap) 0;
            display: grid;
            gap: var(--section-gap);
        }
        .article-body {
            max-width: 840px;
            margin: 0 auto;
        }

        /* Intro Block */
        .intro-block {
            background-color: var(--surface);
            padding: 2rem;
            border-left: 4px solid var(--accent2);
            font-size: 1.1rem;
            color: var(--text);
            font-weight: 500;
            margin-bottom: var(--section-gap);
            clip-path: var(--keris-cut);
            box-shadow: 0 10px 30px rgba(0,0,0,0.5);
        }

        /* Content Sections */
        .arena-section {
            margin-bottom: 2.5rem;
            position: relative;
        }
        .arena-section h2 {
            font-size: 2rem;
            color: var(--accent);
            margin-bottom: 1.2rem;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .arena-section h2::after {
            content: '';
            flex-grow: 1;
            height: 1px;
            background: linear-gradient(90deg, var(--accent) 0%, transparent 100%);
            opacity: 0.3;
        }
        .arena-section p {
            margin-bottom: 1.2rem;
            color: #dcd7cc;
            font-size: 1.05rem;
        }
        .arena-section a {
            font-weight: 600;
            border-bottom: 1px dashed var(--accent2);
        }
        .arena-section a:hover {
            border-bottom-style: solid;
        }

        /* Custom List */
        .tactic-list {
            list-style: none;
            margin: 1.5rem 0;
            padding: 0;
            display: grid;
            gap: 1rem;
        }
        .tactic-list li {
            background-color: var(--surface);
            padding: 1.2rem 1.2rem 1.2rem 3rem;
            position: relative;
            border: 1px solid var(--surface-alt);
            clip-path: var(--keris-cut-reverse);
            font-weight: 500;
        }
        .tactic-list li::before {
            content: '⚡';
            position: absolute;
            left: 1rem;
            top: 1.2rem;
            color: var(--accent2);
            font-size: 1.2rem;
            line-height: 1;
        }

        /* FAQ Section */
        .faq-arena {
            background-color: var(--surface);
            padding: 3rem 2rem;
            border-radius: var(--radius-lg);
            border: 1px solid var(--surface-alt);
            margin-top: 2rem;
        }
        .faq-arena h2 {
            text-align: center;
            margin-bottom: 2rem;
        }
        .faq-arena h2::after { display: none; }
        details {
            background-color: var(--bg);
            border: 1px solid var(--surface-alt);
            margin-bottom: 1rem;
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }
        details[open] {
            border-color: var(--accent);
            box-shadow: 0 4px 15px rgba(217, 142, 50, 0.1);
        }
        summary {
            padding: 1.2rem 1.5rem;
            font-weight: 600;
            font-size: 1.1rem;
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text);
        }
        summary::-webkit-details-marker { display: none; }
        summary::after {
            content: '+';
            font-family: var(--font-display);
            color: var(--accent);
            font-size: 1.5rem;
            line-height: 1;
            transition: transform 0.3s ease;
        }
        details[open] summary::after {
            content: '-';
            transform: rotate(180deg);
        }
        details p {
            padding: 0 1.5rem 1.5rem;
            color: var(--muted);
            margin: 0;
        }

        /* Related Links Grid */
        .related-arena {
            margin-top: 4rem;
            padding-top: 3rem;
            border-top: 2px dashed var(--surface-alt);
        }
        .related-arena h3 {
            font-size: 1.8rem;
            text-align: center;
            margin-bottom: 2rem;
            color: var(--text);
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
        }
        .related-card {
            background: linear-gradient(145deg, var(--surface) 0%, var(--bg) 100%);
            border: 1px solid var(--surface-alt);
            padding: 1.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            clip-path: var(--keris-cut);
            transition: all 0.3s ease;
            color: var(--text);
            border-bottom: none; /* override inline a style */
        }
        .related-card:hover {
            border-color: var(--accent);
            transform: translateY(-5px);
            background: linear-gradient(145deg, var(--surface-alt) 0%, var(--surface) 100%);
            color: var(--accent);
        }
        .rc-title {
            font-family: var(--font-display);
            font-size: 1.2rem;
            letter-spacing: 1px;
        }
        .rc-icon {
            font-size: 1.5rem;
            color: var(--accent2);
        }

        /* CTA Block */
        .cta-colosseum {
            background: linear-gradient(135deg, var(--surface-alt) 0%, #3a2208 100%);
            padding: 4rem 2rem;
            text-align: center;
            border-radius: var(--radius-lg);
            margin-top: 4rem;
            border: 1px solid var(--accent);
            position: relative;
            overflow: hidden;
        }
        .cta-colosseum::before {
            content: '';
            position: absolute;
            top: -50%; left: -50%; width: 200%; height: 200%;
            background: radial-gradient(circle, rgba(217, 142, 50, 0.2) 0%, transparent 60%);
            animation: pulseBg 10s infinite alternate;
        }
        @keyframes pulseBg {
            0% { transform: scale(1); }
            100% { transform: scale(1.1); }
        }
        .cta-colosseum h2 {
            font-size: 2.5rem;
            color: var(--text);
            margin-bottom: 1rem;
            position: relative;
            z-index: 2;
        }
        .cta-colosseum p {
            font-size: 1.1rem;
            color: var(--text);
            margin-bottom: 2rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
            position: relative;
            z-index: 2;
        }
        .cta-actions {
            display: flex;
            gap: 1rem;
            justify-content: center;
            position: relative;
            z-index: 2;
            flex-wrap: wrap;
        }
        .btn {
            font-family: var(--font-display);
            text-transform: uppercase;
            padding: 12px 30px;
            font-size: 1.2rem;
            letter-spacing: 1px;
            clip-path: var(--keris-cut);
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 160px;
            min-height: 44px;
        }
        .btn-primary {
            background-color: var(--accent);
            color: var(--bg);
        }
        .btn-primary:hover {
            background-color: var(--accent-hover);
            color: var(--bg);
        }
        .btn-outline {
            background-color: transparent;
            color: var(--accent);
            border: 2px solid var(--accent);
            /* Adjust clip path for outline to look right, or use inset shadow */
            box-shadow: inset 0 0 0 2px var(--accent);
            border: none;
        }
        .btn-outline:hover {
            background-color: rgba(217, 142, 50, 0.1);
            color: var(--accent-hover);
        }

        /* Footer (Verbatim Support) */
        footer {
            background-color: #050403;
            padding: 4rem 0 2rem;
            border-top: 2px solid var(--surface-alt);
            margin-top: 4rem;
            text-align: center;
        }
        .footer-brand {
            font-size: 2.5rem;
            color: var(--accent);
            margin-bottom: 1rem;
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 10px;
        }
        .footer-tagline {
            color: var(--muted);
            margin-bottom: 2rem;
            font-size: 1.1rem;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 15px 25px;
            margin-bottom: 3rem;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
        }
        .footer-links a {
            color: var(--text);
            text-transform: uppercase;
            font-size: 0.9rem;
            font-weight: 600;
            letter-spacing: 1px;
        }
        .footer-links a:hover { color: var(--accent); }
        .copyright {
            color: #555;
            font-size: 0.9rem;
            border-top: 1px solid #1a1711;
            padding-top: 2rem;
        }

        /* Responsive Breakpoints */
        @media (max-width: 767px) {
            .hero h1 { font-size: 2.2rem; }
            .arena-section h2 { font-size: 1.6rem; }
            .cta-actions { flex-direction: column; width: 100%; }
            .btn { width: 100%; }
            .faq-arena { padding: 2rem 1rem; }
        }


/* pipeline image & layout guards */
html, body { overflow-x: clip; }
img { max-width: 100%; height: auto; }
img.site-logo { height: 40px; width: auto; max-width: 240px; object-fit: contain; flex: none; }
header .logo a { display: inline-flex; align-items: center; flex: none; text-decoration: none; }
img.hero-visual { width: 100%; max-width: 560px; height: auto; object-fit: cover; border-radius: 16px; display: block; margin-inline: auto; }
img[class^="strip-"], img[class*=" strip-"] { width: 100%; height: auto; display: block; border-radius: 12px; object-fit: cover; }
/* 合规声明块（zb-disclaimer，全站 footer） */
.zb-disclaimer { margin-top: 18px !important; padding: 14px 0 0 0 !important; border-top: 1px solid rgba(128,128,128,.25) !important; font-size: .72rem !important; line-height: 1.7 !important; opacity: .85 !important; display: block !important; text-align: left !important; width: 100% !important; clear: both !important; }
.zb-disclaimer .zb-18 { display: inline-block !important; padding: 2px 10px !important; border: 1.5px solid currentColor !important; border-radius: 6px !important; font-weight: 800 !important; letter-spacing: 1px !important; margin: 0 0 10px 0 !important; font-size: .78rem !important; }
.zb-disclaimer p { display: block !important; margin: 5px 0 !important; padding: 0 !important; color: inherit !important; font-size: .72rem !important; line-height: 1.7 !important; }
.zb-disclaimer p:last-child { margin-bottom: 0 !important; }