:root {
            --bg: #0c0c0e;
            --surface: #1a1a20;
            --surface-hover: #23232c;
            --accent: #ffd700;
            --accent-hover: #e6c200;
            --accent2: #ff4d00;
            --text: #f8f8fa;
            --muted: #9a9aa5;
            --font-display: 'Bebas Neue', sans-serif;
            --font-body: 'Sora', sans-serif;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --radius: 8px;
            --container-padding: 1.5rem;
        }

        * {
            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;
            overflow-x: hidden;
        }

        a {
            color: var(--accent);
            text-decoration: none;
            transition: var(--transition);
        }

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

        h1, h2, h3, .logo, .nav-links a {
            font-family: var(--font-display);
            letter-spacing: 1px;
            font-weight: normal;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--container-padding);
        }

        /* HEADER - DO NOT MODIFY STRUCTURE */
        header {
            background-color: rgba(12, 12, 14, 0.95);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 100;
            border-bottom: 1px solid rgba(255, 215, 0, 0.1);
        }

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

        .logo {
            font-size: 2rem;
            color: var(--text);
            text-transform: uppercase;
            letter-spacing: 2px;
        }

        .logo span {
            color: var(--accent);
        }

        .nav-links {
            display: flex;
            gap: 2rem;
        }

        .nav-links a {
            color: var(--text);
            font-size: 1.2rem;
            position: relative;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--accent), var(--accent2));
            transition: var(--transition);
        }

        .nav-links a:hover::after {
            width: 100%;
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text);
            font-size: 1.5rem;
            cursor: pointer;
        }

        /* HERO SECTION */
        .hero {
            position: relative;
            padding: 4rem 0;
            background:
                linear-gradient(135deg, rgba(12,12,14,0.9) 0%, rgba(26,26,32,0.95) 100%),
                repeating-linear-gradient(45deg, transparent, transparent 10px, rgba(255,215,0,0.03) 10px, rgba(255,215,0,0.03) 20px);
            border-bottom: 2px solid var(--accent2);
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 50%;
            height: 100%;
            background: radial-gradient(circle at top right, rgba(255,77,0,0.15), transparent 70%);
            pointer-events: none;
        }

        .breadcrumb {
            font-size: 0.875rem;
            color: var(--muted);
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .hero h1 {
            font-size: clamp(2.5rem, 5vw, 4.5rem);
            line-height: 1.1;
            margin-bottom: 1.5rem;
            background: linear-gradient(to right, var(--text), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-transform: uppercase;
        }

        .meta-chips {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .chip {
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid rgba(255, 215, 0, 0.3);
            color: var(--accent);
            padding: 0.4rem 1rem;
            border-radius: 20px;
            font-size: 0.875rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .chip::before {
            content: '';
            display: inline-block;
            width: 6px;
            height: 6px;
            background-color: var(--accent2);
            border-radius: 50%;
            box-shadow: 0 0 8px var(--accent2);
        }

        /* MAIN CONTENT */
        .main-content {
            padding: 4rem 0;
            display: grid;
            gap: 3rem;
        }

        .intro-lead {
            font-size: 1.125rem;
            color: var(--text);
            background: var(--surface);
            padding: 2rem;
            border-left: 4px solid var(--accent);
            border-radius: 0 var(--radius) var(--radius) 0;
            position: relative;
            box-shadow: 0 10px 30px rgba(0,0,0,0.5);
        }

        .content-section {
            background: var(--surface);
            padding: 2rem;
            border-radius: var(--radius);
            position: relative;
            transition: var(--transition);
            border: 1px solid rgba(255,255,255,0.05);
        }

        .content-section:hover {
            border-color: rgba(255, 215, 0, 0.2);
            transform: translateY(-2px);
        }

        .content-section h2 {
            font-size: 2rem;
            color: var(--accent);
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .content-section p {
            margin-bottom: 1.5rem;
            color: #d1d1d6;
        }

        .content-section p:last-child {
            margin-bottom: 0;
        }

        /* CUSTOM LIST */
        .tactic-list {
            list-style: none;
            margin-top: 1.5rem;
            display: grid;
            gap: 1rem;
        }

        .tactic-list li {
            background: rgba(12, 12, 14, 0.6);
            padding: 1.2rem 1.5rem 1.2rem 3.5rem;
            border-radius: var(--radius);
            position: relative;
            color: var(--text);
            border: 1px solid rgba(255,255,255,0.02);
        }

        .tactic-list li::before {
            content: '⚡';
            position: absolute;
            left: 1.2rem;
            top: 1.1rem;
            font-size: 1.2rem;
            color: var(--accent);
        }

        /* FAQ SECTION */
        .faq-wrapper {
            margin-top: 2rem;
        }

        .faq-title {
            font-size: 2.5rem;
            text-align: center;
            margin-bottom: 2rem;
            color: var(--text);
        }

        details {
            background: var(--surface);
            margin-bottom: 1rem;
            border-radius: var(--radius);
            border: 1px solid rgba(255,255,255,0.05);
            overflow: hidden;
        }

        summary {
            padding: 1.5rem;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text);
            transition: var(--transition);
        }

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

        summary::after {
            content: '+';
            font-family: var(--font-display);
            font-size: 1.5rem;
            color: var(--accent);
            transition: transform 0.3s ease;
        }

        details[open] summary {
            background: rgba(255, 215, 0, 0.05);
            color: var(--accent);
        }

        details[open] summary::after {
            transform: rotate(45deg);
        }

        details p {
            padding: 0 1.5rem 1.5rem;
            color: var(--muted);
            margin: 0;
            border-top: 1px solid rgba(255,255,255,0.05);
            padding-top: 1rem;
        }

        /* RELATED LINKS */
        .related-nav {
            background: linear-gradient(to bottom, transparent, var(--surface));
            padding: 4rem 0;
            text-align: center;
        }

        .related-nav h3 {
            font-size: 2rem;
            margin-bottom: 2rem;
            color: var(--text);
        }

        .nav-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1rem;
        }

        .nav-card {
            background: rgba(12, 12, 14, 0.8);
            border: 1px solid rgba(255, 215, 0, 0.2);
            padding: 1.5rem;
            border-radius: var(--radius);
            font-family: var(--font-display);
            font-size: 1.25rem;
            color: var(--text);
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            position: relative;
            overflow: hidden;
            z-index: 1;
        }

        .nav-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(45deg, var(--accent2), var(--accent));
            opacity: 0;
            z-index: -1;
            transition: var(--transition);
        }

        .nav-card:hover {
            color: var(--bg);
            border-color: transparent;
            transform: scale(1.05);
        }

        .nav-card:hover::before {
            opacity: 1;
        }

        /* CTA SECTION */
        .cta-block {
            background: linear-gradient(135deg, var(--surface) 0%, #0c0c0e 100%);
            border: 2px solid rgba(255, 215, 0, 0.3);
            border-radius: var(--radius);
            padding: 4rem 2rem;
            text-align: center;
            margin: 2rem 0 4rem;
            position: relative;
            overflow: hidden;
        }

        .cta-block::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: repeating-linear-gradient(
                45deg,
                transparent,
                transparent 20px,
                rgba(255, 77, 0, 0.03) 20px,
                rgba(255, 77, 0, 0.03) 40px
            );
            animation: moveStripes 20s linear infinite;
            pointer-events: none;
        }

        @keyframes moveStripes {
            0% { transform: translateY(0); }
            100% { transform: translateY(-50px); }
        }

        .cta-block h2 {
            font-size: 3rem;
            color: var(--accent);
            margin-bottom: 1rem;
            position: relative;
            z-index: 2;
        }

        .cta-block p {
            font-size: 1.1rem;
            color: var(--text);
            margin-bottom: 2.5rem;
            max-width: 600px;
            margin-inline: auto;
            position: relative;
            z-index: 2;
        }

        .btn-group {
            display: flex;
            gap: 1.5rem;
            justify-content: center;
            position: relative;
            z-index: 2;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 1rem 2.5rem;
            font-family: var(--font-display);
            font-size: 1.5rem;
            border-radius: 4px;
            cursor: pointer;
            min-width: 200px;
            min-height: 44px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .btn-primary {
            background: linear-gradient(to right, var(--accent), #ffea00);
            color: var(--bg);
            border: none;
            box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(255, 215, 0, 0.5);
            color: var(--bg);
        }

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

        .btn-secondary:hover {
            background: var(--accent2);
            color: var(--text);
            transform: translateY(-3px);
        }

        /* FOOTER - DO NOT MODIFY STRUCTURE */
        footer {
            background-color: #08080a;
            padding: 4rem 0 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 4rem;
            margin-bottom: 3rem;
        }

        .footer-tagline {
            color: var(--muted);
            margin-top: 1rem;
            font-size: 0.9rem;
        }

        .footer-links-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1rem;
        }

        .footer-links-grid a {
            color: var(--muted);
            font-size: 0.9rem;
        }

        .footer-links-grid a:hover {
            color: var(--accent);
            padding-left: 5px;
        }

        .footer-bottom {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            color: var(--muted);
            font-size: 0.8rem;
        }

        /* RESPONSIVE */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .footer-links-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: block;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: var(--surface);
                flex-direction: column;
                padding: 1rem 0;
                gap: 0;
                border-bottom: 1px solid var(--accent);
            }
            .nav-links.active {
                display: flex;
            }
            .nav-links a {
                padding: 1rem var(--container-padding);
                border-bottom: 1px solid rgba(255,255,255,0.05);
            }
            .nav-links a::after {
                display: none;
            }

            .hero h1 {
                font-size: 2.2rem;
            }

            .content-section {
                padding: 1.5rem;
            }

            .cta-block h2 {
                font-size: 2rem;
            }

            .btn-group {
                flex-direction: column;
            }

            .btn {
                width: 100%;
            }
        }

        @media (max-width: 390px) {
            .footer-links-grid {
                grid-template-columns: 1fr;
            }
            .meta-chips {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.5rem;
            }
            .intro-lead {
                padding: 1.5rem 1rem;
            }
            .tactic-list li {
                padding: 1rem 1rem 1rem 2.5rem;
            }
            .tactic-list li::before {
                left: 0.8rem;
                top: 0.9rem;
            }
        }


/* 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; }