:root {
            --bg: #061218;
            --surface: #0d2230;
            --accent: #22d3ee;
            --accent2: #a3e635;
            --text: #f0faff;
            --muted: #8fadb8;
            --font-display: 'Chakra Petch', sans-serif;
            --font-body: 'Manrope', sans-serif;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 24px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            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, h4 {
            font-family: var(--font-display);
            line-height: 1.2;
            color: var(--text);
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* HEADER STYLES */
        header {
            background-color: rgba(6, 18, 24, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(34, 211, 238, 0.1);
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 15px 0;
        }

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

        .logo {
            font-family: var(--font-display);
            font-size: 1.5rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text);
            text-transform: lowercase;
        }

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

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

        .nav-links a {
            color: var(--text);
            font-weight: 500;
            font-size: 0.95rem;
            position: relative;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent);
            transition: var(--transition);
        }

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

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

        /* HERO BANNER (Ocean Blue Specific) */
        .hero-banner {
            background: linear-gradient(180deg, var(--surface) 0%, var(--bg) 100%);
            padding: 60px 0 40px;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid rgba(34, 211, 238, 0.1);
        }

        .hero-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 100%;
            background:
                radial-gradient(circle at 15% 50%, rgba(34, 211, 238, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 85% 30%, rgba(163, 230, 53, 0.05) 0%, transparent 50%);
            pointer-events: none;
        }

        .breadcrumb {
            font-size: 0.875rem;
            color: var(--muted);
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 8px;
            position: relative;
            z-index: 2;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
        }

        .hero-content h1 {
            font-size: clamp(2rem, 5vw, 3.5rem);
            font-weight: 700;
            margin-bottom: 20px;
            text-shadow: 0 4px 20px rgba(34, 211, 238, 0.3);
            background: linear-gradient(to right, var(--text), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .meta-chips {
            display: flex;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .chip {
            background: rgba(34, 211, 238, 0.1);
            border: 1px solid rgba(34, 211, 238, 0.2);
            color: var(--accent);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            font-family: var(--font-display);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* MAIN CONTENT AREA */
        .article-content {
            max-width: 800px;
            margin: 40px auto;
            padding: 0 20px;
        }

        .intro-block {
            background: var(--surface);
            border-left: 4px solid var(--accent2);
            padding: 24px 30px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin-bottom: 40px;
            font-size: 1.1rem;
            color: var(--text);
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
        }

        .content-section {
            margin-bottom: 48px;
            position: relative;
        }

        .content-section h2 {
            font-size: 1.75rem;
            margin-bottom: 20px;
            color: var(--accent);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .content-section h2::before {
            content: '';
            display: block;
            width: 32px;
            height: 4px;
            background: var(--accent2);
            border-radius: 2px;
        }

        .content-section p {
            margin-bottom: 16px;
            color: rgba(240, 250, 255, 0.9);
            font-size: 1.05rem;
        }

        .content-section a {
            font-weight: 700;
            border-bottom: 1px dashed var(--accent);
        }

        .content-section a:hover {
            border-bottom-style: solid;
            color: var(--accent2);
        }

        /* CUSTOM LIST */
        .ocean-list {
            list-style: none;
            margin: 24px 0;
            padding: 24px;
            background: rgba(13, 34, 48, 0.5);
            border: 1px solid rgba(34, 211, 238, 0.15);
            border-radius: var(--radius-md);
        }

        .ocean-list li {
            position: relative;
            padding-left: 36px;
            margin-bottom: 16px;
            font-size: 1.05rem;
        }

        .ocean-list li:last-child {
            margin-bottom: 0;
        }

        .ocean-list li::before {
            content: '🌊';
            position: absolute;
            left: 0;
            top: 2px;
            font-size: 1.2rem;
            filter: drop-shadow(0 0 5px rgba(34, 211, 238, 0.5));
        }

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

        .faq-container h2 {
            text-align: center;
            margin-bottom: 30px;
            justify-content: center;
        }

        .faq-container h2::before {
            display: none;
        }

        details {
            background: var(--surface);
            border: 1px solid rgba(34, 211, 238, 0.1);
            border-radius: var(--radius-sm);
            margin-bottom: 16px;
            transition: var(--transition);
        }

        details:hover {
            border-color: rgba(34, 211, 238, 0.4);
        }

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

        details[open] summary::after {
            transform: rotate(45deg);
            color: var(--accent2);
        }

        details[open] summary {
            border-bottom: 1px solid rgba(34, 211, 238, 0.1);
            background: rgba(34, 211, 238, 0.03);
        }

        details p {
            padding: 20px;
            margin: 0;
            color: var(--muted);
            line-height: 1.7;
        }

        /* RELATED LINKS GRID */
        .related-section {
            margin: 60px 0;
            padding-top: 40px;
            border-top: 1px solid rgba(143, 173, 184, 0.2);
        }

        .related-title {
            text-align: center;
            font-size: 1.5rem;
            margin-bottom: 30px;
            color: var(--text);
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 16px;
        }

        .related-card {
            background: var(--surface);
            border: 1px solid rgba(34, 211, 238, 0.1);
            border-radius: var(--radius-sm);
            padding: 20px;
            text-align: center;
            display: flex;
            align-items: center;
            justify-content: center;
            height: 100%;
            font-weight: 700;
            font-family: var(--font-display);
            color: var(--text);
            transition: var(--transition);
        }

        .related-card:hover {
            background: rgba(34, 211, 238, 0.05);
            border-color: var(--accent);
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.3);
            color: var(--accent);
            border-bottom: 1px solid var(--accent); /* override article link style */
        }

        /* MEGA CTA */
        .cta-mega {
            background: linear-gradient(135deg, var(--surface) 0%, #0a1924 100%);
            border: 2px solid rgba(34, 211, 238, 0.3);
            border-radius: var(--radius-lg);
            padding: 50px 30px;
            text-align: center;
            margin: 60px auto;
            max-width: 800px;
            position: relative;
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(0,0,0,0.4);
        }

        .cta-mega::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -50px;
            width: 150px;
            height: 150px;
            background: var(--accent);
            filter: blur(100px);
            opacity: 0.2;
            border-radius: 50%;
        }

        .cta-mega h3 {
            font-size: 2rem;
            margin-bottom: 16px;
            color: var(--text);
        }

        .cta-mega p {
            color: var(--muted);
            margin-bottom: 30px;
            font-size: 1.1rem;
        }

        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 32px;
            border-radius: 30px;
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1.1rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            min-height: 48px;
            min-width: 160px;
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }

        .btn-primary {
            background: var(--accent);
            color: var(--bg);
            box-shadow: 0 4px 15px rgba(34, 211, 238, 0.3);
        }

        .btn-primary:hover {
            background: var(--text);
            color: var(--bg);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(34, 211, 238, 0.5);
            border-bottom: none;
        }

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

        .btn-secondary:hover {
            background: rgba(163, 230, 53, 0.1);
            transform: translateY(-2px);
            border-bottom: 2px solid var(--accent2);
        }

        /* FOOTER STYLES */
        footer {
            background-color: #040d12;
            padding: 60px 0 20px;
            border-top: 1px solid rgba(34, 211, 238, 0.1);
            margin-top: 60px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand p {
            color: var(--muted);
            margin-top: 16px;
            max-width: 300px;
        }

        .footer-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            gap: 24px;
        }

        .footer-links div {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-links a {
            color: var(--muted);
            font-size: 0.95rem;
        }

        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-bottom {
            text-align: center;
            padding-top: 24px;
            border-top: 1px solid rgba(143, 173, 184, 0.1);
            color: var(--muted);
            font-size: 0.875rem;
        }

        /* RESPONSIVE */
        @media (min-width: 768px) {
            .nav-links {
                display: flex;
            }
            .mobile-toggle {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr 2fr;
            }
            .cta-mega {
                padding: 60px 40px;
            }
        }

        @media (max-width: 767px) {
            .nav-links.active {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: var(--surface);
                padding: 20px;
                border-bottom: 1px solid rgba(34,211,238,0.2);
                box-shadow: 0 10px 20px rgba(0,0,0,0.5);
            }
            .intro-block {
                padding: 20px;
                font-size: 1rem;
            }
            .content-section h2 {
                font-size: 1.4rem;
            }
            .ocean-list {
                padding: 16px;
            }
        }


/* 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; }