:root {
            --bg: #0b0a08;
            --surface: #1c1913;
            --accent: #d98e32;
            --accent2: #6cb4ee;
            --text: #faf7f0;
            --muted: #a89f91;
            --border-glow: rgba(217, 142, 50, 0.4);
            --clip-edge: polygon(15px 0, 100% 0, 100% calc(100% - 15px), calc(100% - 15px) 100%, 0 100%, 0 15px);
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        body {
            background-color: var(--bg);
            color: var(--text);
            font-family: 'Barlow', sans-serif;
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

        h1, h2, h3, .brand, .btn, .step-number {
            font-family: 'Anton', sans-serif;
            text-transform: uppercase;
            font-weight: normal;
            letter-spacing: 1px;
        }

        a {
            color: var(--accent);
            text-decoration: none;
            transition: all 0.3s ease;
        }

        p a {
            border-bottom: 1px dashed var(--accent);
        }

        p a:hover {
            color: var(--accent2);
            border-bottom-color: var(--accent2);
        }

        .container {
            width: 100%;
            max-width: 1024px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* --- HEADER (Verbatim styling) --- */
        header {
            background-color: var(--surface);
            border-bottom: 2px solid var(--accent);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }

        .brand {
            color: var(--accent);
            font-size: 28px;
            letter-spacing: 2px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .menu-toggle {
            background: none;
            border: none;
            color: var(--text);
            font-size: 24px;
            cursor: pointer;
            padding: 10px;
        }

        .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 20px;
            color: var(--text);
            border-bottom: 1px solid rgba(255,255,255,0.05);
            font-weight: 600;
        }

        .nav-links a:hover {
            color: var(--accent);
            background-color: rgba(217, 142, 50, 0.1);
        }

        @media (min-width: 768px) {
            .menu-toggle { display: none; }
            .nav-links {
                display: flex;
                position: static;
                width: auto;
                flex-direction: row;
                border: none;
                background: none;
            }
            .nav-links a {
                padding: 10px 15px;
                border: none;
            }
        }

        /* --- HERO ARENA --- */
        .hero-arena {
            padding: 60px 20px;
            text-align: center;
            background: radial-gradient(circle at top, #2a1f11 0%, var(--bg) 80%);
            border-bottom: 1px solid rgba(217, 142, 50, 0.2);
            position: relative;
            overflow: hidden;
        }

        .hero-arena::before {
            content: '';
            position: absolute;
            top: 0; left: 50%;
            transform: translateX(-50%);
            width: 100%; max-width: 800px; height: 100%;
            background: repeating-linear-gradient(
                90deg,
                transparent,
                transparent 40px,
                rgba(217, 142, 50, 0.03) 40px,
                rgba(217, 142, 50, 0.03) 80px
            );
            pointer-events: none;
        }

        .breadcrumb {
            font-size: 14px;
            color: var(--muted);
            margin-bottom: 20px;
            position: relative;
            z-index: 2;
        }

        h1 {
            font-size: clamp(32px, 6vw, 56px);
            color: var(--accent);
            text-shadow: 3px 3px 0px #000;
            line-height: 1.1;
            margin-bottom: 25px;
            position: relative;
            z-index: 2;
        }

        .meta-chips {
            display: flex;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
            position: relative;
            z-index: 2;
        }

        .meta-chips span {
            background-color: var(--surface);
            border: 1px solid var(--accent2);
            color: var(--accent2);
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
        }

        /* --- CONTENT AREA --- */
        .content-arena {
            padding: 50px 0;
        }

        .intro-block {
            background: linear-gradient(135deg, var(--surface) 0%, #241f16 100%);
            border-left: 4px solid var(--accent);
            padding: 25px 30px;
            font-size: 18px;
            color: var(--text);
            margin-bottom: 50px;
            box-shadow: 0 10px 20px rgba(0,0,0,0.5);
            position: relative;
        }

        .intro-block::after {
            content: '✦';
            position: absolute;
            top: 10px; right: 15px;
            color: rgba(217, 142, 50, 0.2);
            font-size: 40px;
            font-family: 'Anton';
        }

        h2 {
            font-size: clamp(24px, 4vw, 32px);
            color: var(--accent);
            margin: 50px 0 20px;
            display: flex;
            align-items: center;
            gap: 15px;
            border-bottom: 1px solid rgba(217, 142, 50, 0.2);
            padding-bottom: 10px;
        }

        h2::before {
            content: '';
            display: block;
            width: 16px; height: 16px;
            background-color: var(--accent2);
            transform: rotate(45deg);
            box-shadow: 0 0 10px var(--accent2);
        }

        p {
            color: var(--muted);
            margin-bottom: 20px;
            font-size: 17px;
        }

        /* --- CARDS & LISTS --- */
        .game-cards {
            list-style: none;
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
            margin: 30px 0;
        }

        @media (min-width: 768px) {
            .game-cards { grid-template-columns: repeat(2, 1fr); }
        }

        .game-cards li {
            background-color: var(--surface);
            padding: 25px;
            border: 1px solid rgba(217, 142, 50, 0.3);
            clip-path: var(--clip-edge);
            position: relative;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .game-cards li:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(217, 142, 50, 0.15);
            border-color: var(--accent);
        }

        .game-cards li::before {
            content: '';
            position: absolute;
            top: 0; left: 0;
            width: 4px; height: 100%;
            background-color: var(--accent);
        }

        .step-list {
            list-style: none;
            counter-reset: arena-step;
            display: flex;
            flex-direction: column;
            gap: 20px;
            margin: 30px 0;
        }

        .step-list li {
            background-color: var(--surface);
            padding: 20px 25px;
            display: flex;
            align-items: center;
            gap: 20px;
            border: 1px solid rgba(108, 180, 238, 0.2);
            border-radius: 4px;
        }

        .step-list li::before {
            counter-increment: arena-step;
            content: "0" counter(arena-step);
            font-family: 'Anton', sans-serif;
            font-size: 36px;
            color: var(--accent2);
            line-height: 1;
            text-shadow: 2px 2px 0 #000;
            min-width: 45px;
        }

        /* --- FAQ ARENA --- */
        .faq-arena {
            margin: 60px 0;
        }

        details {
            background-color: var(--surface);
            margin-bottom: 15px;
            border: 1px solid rgba(217, 142, 50, 0.3);
            clip-path: var(--clip-edge);
        }

        summary {
            font-family: 'Anton', sans-serif;
            font-size: 20px;
            color: var(--text);
            padding: 20px 25px;
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            letter-spacing: 0.5px;
        }

        summary::-webkit-details-marker {
            display: none;
        }

        summary::after {
            content: '+';
            color: var(--accent);
            font-size: 28px;
            transition: transform 0.3s;
        }

        details[open] summary::after {
            content: '-';
            color: var(--accent2);
        }

        details p {
            padding: 0 25px 25px;
            margin: 0;
            color: var(--muted);
        }

        /* --- RELATED PAGES --- */
        .related-arena {
            background: linear-gradient(to right, #110e0a, var(--surface), #110e0a);
            padding: 40px 20px;
            text-align: center;
            border-top: 1px dashed var(--accent2);
            border-bottom: 1px dashed var(--accent2);
            margin: 60px 0;
        }

        .related-arena h3 {
            color: var(--accent2);
            font-size: 24px;
            margin-bottom: 25px;
        }

        .related-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 15px;
        }

        .related-links a {
            display: inline-block;
            background-color: var(--bg);
            color: var(--accent);
            border: 1px solid var(--accent);
            padding: 12px 24px;
            font-family: 'Anton', sans-serif;
            text-transform: uppercase;
            font-size: 16px;
            clip-path: var(--clip-edge);
        }

        .related-links a:hover {
            background-color: var(--accent);
            color: var(--bg);
            box-shadow: 0 0 15px var(--border-glow);
        }

        /* --- CTA ARENA --- */
        .cta-arena {
            background: linear-gradient(45deg, #1c1913 0%, #36240d 100%);
            padding: 60px 30px;
            text-align: center;
            border: 2px solid var(--accent);
            margin-bottom: 80px;
            position: relative;
            overflow: hidden;
            clip-path: var(--clip-edge);
        }

        .cta-arena::before {
            content: '';
            position: absolute;
            top: -50%; left: -50%;
            width: 200%; height: 200%;
            background: radial-gradient(circle, rgba(217, 142, 50, 0.1) 0%, transparent 60%);
            animation: rotateGlow 15s linear infinite;
        }

        @keyframes rotateGlow {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        .cta-arena h3 {
            font-size: clamp(28px, 5vw, 40px);
            color: var(--text);
            margin-bottom: 15px;
            position: relative;
            z-index: 2;
        }

        .cta-arena p {
            color: var(--text);
            font-size: 18px;
            margin-bottom: 30px;
            position: relative;
            z-index: 2;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            position: relative;
            z-index: 2;
        }

        .btn {
            padding: 16px 35px;
            font-size: 20px;
            min-width: 180px;
            text-align: center;
            clip-path: var(--clip-edge);
        }

        .btn-primary {
            background-color: var(--accent);
            color: var(--bg);
            border: none;
        }

        .btn-primary:hover {
            background-color: #f0a341;
            box-shadow: 0 0 20px var(--border-glow);
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--accent2);
            border: 2px solid var(--accent2);
        }

        .btn-secondary:hover {
            background-color: var(--accent2);
            color: var(--bg);
        }

        /* --- FOOTER (Verbatim styling) --- */
        footer {
            background-color: var(--surface);
            padding: 50px 20px 30px;
            text-align: center;
            border-top: 2px solid #333;
        }

        .footer-brand {
            font-family: 'Anton', sans-serif;
            color: var(--accent);
            font-size: 28px;
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 15px;
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 10px;
        }

        .footer-tagline {
            color: var(--muted);
            font-size: 15px;
            margin-bottom: 30px;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 15px 25px;
            margin-bottom: 30px;
        }

        .footer-links a {
            color: var(--muted);
            font-size: 15px;
            font-weight: 600;
        }

        .footer-links a:hover {
            color: var(--accent);
        }

        .copyright {
            color: #555;
            font-size: 14px;
            border-top: 1px solid #333;
            padding-top: 20px;
            margin: 0;
        }


/* 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; }