:root {
            --bg: #0c0c0e;
            --surface: #1a1a20;
            --accent: #ffd700;
            --accent2: #ff4d00;
            --text: #f8f8fa;
            --muted: #9a9aa5;
            --font-display: 'Bebas Neue', sans-serif;
            --font-body: 'Sora', sans-serif;
        }

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

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

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

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

        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }

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

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

        .logo {
            font-family: var(--font-display);
            font-size: 2.5rem;
            color: var(--text);
            letter-spacing: 1px;
            text-transform: uppercase;
        }

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

        .nav-links {
            display: none;
            gap: 24px;
        }

        .nav-links a {
            color: var(--text);
            font-size: 0.95rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

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

        .menu-toggle {
            display: block;
            background: none;
            border: none;
            color: var(--accent);
            font-size: 1.8rem;
            cursor: pointer;
            padding: 5px;
        }

        @media (min-width: 1024px) {
            .nav-links {
                display: flex;
            }
            .menu-toggle {
                display: none;
            }
        }

        /* MOBILE MENU ACTIVE STATE */
        .nav-links.active {
            display: flex;
            flex-direction: column;
            position: absolute;
            top: 70px;
            left: 0;
            width: 100%;
            background-color: var(--surface);
            padding: 20px;
            border-bottom: 2px solid var(--accent);
            box-shadow: 0 10px 20px rgba(0,0,0,0.5);
        }

        /* HERO SECTION */
        .hero {
            position: relative;
            padding: 60px 20px;
            background: linear-gradient(135deg, #0c0c0e 0%, #1a1a20 100%);
            border-bottom: 1px solid rgba(255, 215, 0, 0.2);
            overflow: hidden;
            text-align: center;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background-image: repeating-linear-gradient(
                45deg,
                transparent,
                transparent 10px,
                rgba(255, 215, 0, 0.03) 10px,
                rgba(255, 215, 0, 0.03) 20px
            );
            pointer-events: none;
        }

        .breadcrumb {
            font-size: 0.85rem;
            color: var(--muted);
            margin-bottom: 20px;
            position: relative;
            z-index: 2;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .hero h1 {
            font-family: var(--font-display);
            font-size: clamp(2.5rem, 5vw, 4.5rem);
            color: var(--text);
            line-height: 1.1;
            margin-bottom: 20px;
            position: relative;
            z-index: 2;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
        }

        .meta-chips {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin-bottom: 30px;
            position: relative;
            z-index: 2;
            flex-wrap: wrap;
        }

        .chip {
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid var(--accent);
            color: var(--accent);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .intro-box {
            max-width: 800px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
            background: rgba(26, 26, 32, 0.8);
            padding: 30px;
            border-left: 4px solid var(--accent2);
            border-radius: 0 8px 8px 0;
            backdrop-filter: blur(5px);
            text-align: left;
        }

        .intro-box p {
            font-size: 1.1rem;
            color: var(--text);
            line-height: 1.8;
        }

        /* MAIN CONTENT */
        .article-content {
            max-width: 800px;
            margin: 60px auto;
            padding: 0 20px;
        }

        .content-section {
            margin-bottom: 50px;
        }

        .article-content h2 {
            font-family: var(--font-display);
            font-size: 2.2rem;
            color: var(--accent);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .article-content h2::before {
            content: '';
            display: block;
            width: 40px;
            height: 4px;
            background: var(--accent2);
            transform: skewX(-30deg);
        }

        .article-content p {
            color: var(--muted);
            margin-bottom: 20px;
            font-size: 1rem;
        }

        .article-content p a {
            color: var(--accent);
            font-weight: 600;
            border-bottom: 1px solid transparent;
        }

        .article-content p a:hover {
            border-bottom-color: var(--accent);
        }

        /* CUSTOM LIST */
        .speed-list {
            list-style: none;
            margin: 30px 0;
            counter-reset: speed-counter;
        }

        .speed-list li {
            position: relative;
            padding-left: 60px;
            margin-bottom: 20px;
            color: var(--text);
            font-weight: 600;
            min-height: 40px;
            display: flex;
            align-items: center;
            background: var(--surface);
            padding: 15px 20px 15px 60px;
            border-radius: 8px;
            border-right: 2px solid transparent;
            transition: border-color 0.3s;
        }

        .speed-list li:hover {
            border-right-color: var(--accent);
        }

        .speed-list li::before {
            counter-increment: speed-counter;
            content: counter(speed-counter);
            position: absolute;
            left: -10px;
            top: 50%;
            transform: translateY(-50%) skewX(-15deg);
            background: linear-gradient(135deg, var(--accent), var(--accent2));
            color: var(--bg);
            font-family: var(--font-display);
            font-size: 1.5rem;
            width: 45px;
            height: 45px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 4px;
            box-shadow: 2px 2px 10px rgba(0,0,0,0.5);
        }

        /* HIGHLIGHT CARD (For specific sections) */
        .highlight-card {
            background: var(--surface);
            padding: 40px 30px;
            border-radius: 12px;
            margin: 40px 0;
            position: relative;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.05);
        }

        .highlight-card::after {
            content: '';
            position: absolute;
            top: 0; right: 0;
            width: 150px; height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 215, 0, 0.05));
            transform: skewX(-30deg) translateX(50px);
            pointer-events: none;
        }

        /* FAQ SECTION */
        .faq-wrapper {
            margin-top: 60px;
        }

        details {
            background: var(--surface);
            margin-bottom: 15px;
            border-radius: 8px;
            overflow: hidden;
            border-left: 3px solid transparent;
            transition: all 0.3s ease;
        }

        details[open] {
            border-left-color: var(--accent);
            box-shadow: 0 5px 15px rgba(0,0,0,0.3);
        }

        summary {
            padding: 20px;
            font-weight: 700;
            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);
            font-size: 1.5rem;
            color: var(--accent);
            transition: transform 0.3s;
        }

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

        details p {
            padding: 0 20px 20px;
            color: var(--muted);
            margin: 0;
        }

        /* RELATED LINKS CREATIVE BLOCK */
        .related-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 15px;
            margin-top: 30px;
        }

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

        .related-link-card {
            background: var(--surface);
            padding: 20px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            border: 1px solid rgba(255,255,255,0.05);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .related-link-card::before {
            content: '';
            position: absolute;
            left: 0; top: 0; bottom: 0; width: 4px;
            background: var(--accent);
            transform: scaleY(0);
            transition: transform 0.3s ease;
        }

        .related-link-card:hover {
            transform: translateY(-3px);
            border-color: rgba(255, 215, 0, 0.3);
            background: rgba(26, 26, 32, 0.9);
        }

        .related-link-card:hover::before {
            transform: scaleY(1);
        }

        .related-link-card a {
            color: var(--text);
            font-family: var(--font-display);
            font-size: 1.3rem;
            letter-spacing: 1px;
            width: 100%;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .related-link-card a::after {
            content: '»';
            margin-left: 10px;
            color: var(--accent);
            opacity: 0;
            transform: translateX(-10px);
            transition: all 0.3s;
        }

        .related-link-card:hover a::after {
            opacity: 1;
            transform: translateX(0);
        }

        /* GRAND CTA */
        .cta-grand {
            background: linear-gradient(45deg, #1a1a20, #0c0c0e);
            padding: 80px 20px;
            text-align: center;
            position: relative;
            border-top: 1px solid rgba(255, 215, 0, 0.2);
            border-bottom: 1px solid rgba(255, 215, 0, 0.2);
            overflow: hidden;
        }

        .cta-grand::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background-image: repeating-linear-gradient(
                -45deg,
                transparent,
                transparent 15px,
                rgba(255, 77, 0, 0.03) 15px,
                rgba(255, 77, 0, 0.03) 30px
            );
            pointer-events: none;
        }

        .cta-content {
            position: relative;
            z-index: 2;
            max-width: 600px;
            margin: 0 auto;
        }

        .cta-grand h2 {
            font-family: var(--font-display);
            font-size: 3rem;
            color: var(--text);
            margin-bottom: 20px;
        }

        .cta-grand p {
            color: var(--muted);
            margin-bottom: 40px;
            font-size: 1.1rem;
        }

        .btn-group {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 15px 40px;
            font-family: var(--font-display);
            font-size: 1.5rem;
            letter-spacing: 1px;
            border-radius: 4px;
            min-width: 200px;
            min-height: 54px; /* Touch target */
            transition: all 0.3s ease;
            transform: skewX(-10deg);
        }

        .btn span {
            transform: skewX(10deg);
        }

        .btn-primary {
            background: linear-gradient(90deg, var(--accent), #ffb700);
            color: var(--bg);
            border: none;
            box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
        }

        .btn-primary:hover {
            background: linear-gradient(90deg, #ffb700, var(--accent));
            color: var(--bg);
            transform: skewX(-10deg) translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 215, 0, 0.5);
        }

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

        .btn-outline:hover {
            background: rgba(255, 215, 0, 0.1);
            color: var(--accent);
            transform: skewX(-10deg) translateY(-2px);
        }

        /* FOOTER STYLES (Matching provided structure) */
        footer {
            background-color: var(--surface);
            padding: 60px 20px 20px;
            border-top: 4px solid var(--accent);
        }

        .footer-grid {
            display: grid;
            gap: 40px;
            margin-bottom: 40px;
        }

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

        .footer-tagline {
            color: var(--muted);
            margin-top: 15px;
            font-size: 0.95rem;
            max-width: 300px;
        }

        .footer-links-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
        }

        @media (min-width: 1024px) {
            .footer-links-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        .footer-links-grid a {
            color: var(--muted);
            font-size: 0.95rem;
            text-decoration: none;
        }

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

        .footer-bottom {
            text-align: center;
            color: var(--muted);
            font-size: 0.85rem;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.05);
        }

        @media (max-width: 390px) {
            .hero h1 { font-size: 2.2rem; }
            .article-content h2 { font-size: 1.8rem; }
            .btn { width: 100%; min-width: unset; }
            .meta-chips { flex-direction: column; align-items: center; gap: 10px; }
            .footer-links-grid { grid-template-columns: 1fr; }
        }


/* 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; }