:root {
            --bg: #061218;
            --surface: #0d2230;
            --surface-hover: #143246;
            --accent: #22d3ee;
            --accent-glow: rgba(34, 211, 238, 0.3);
            --accent2: #a3e635;
            --text: #f0faff;
            --muted: #8fadb8;
            --font-display: 'Chakra Petch', sans-serif;
            --font-body: 'Manrope', sans-serif;
            --radius-sm: 8px;
            --radius-md: 16px;
            --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);
        }

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

        /* HEADER (A1) 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;
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }
        .logo {
            font-family: var(--font-display);
            font-size: 24px;
            font-weight: 700;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: 1px;
        }
        .logo span {
            color: var(--accent);
        }
        .nav-links {
            display: flex;
            gap: 24px;
        }
        .nav-links a {
            font-family: var(--font-display);
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .nav-links a:hover {
            color: var(--accent);
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text);
            font-size: 28px;
            cursor: pointer;
        }

        @media (max-width: 1024px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background-color: var(--surface);
                flex-direction: column;
                padding: 20px;
                gap: 16px;
                border-bottom: 1px solid rgba(34, 211, 238, 0.1);
            }
            .nav-links.active {
                display: flex;
            }
            .mobile-toggle {
                display: block;
            }
        }

        /* PAGE HERO */
        .page-hero {
            position: relative;
            padding: 80px 20px 60px;
            background: radial-gradient(circle at 50% 0%, rgba(34, 211, 238, 0.15) 0%, transparent 70%),
                        linear-gradient(180deg, var(--bg) 0%, var(--surface) 100%);
            border-bottom: 1px solid rgba(34, 211, 238, 0.05);
            text-align: center;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background-image: radial-gradient(rgba(34, 211, 238, 0.1) 1px, transparent 1px);
            background-size: 30px 30px;
            opacity: 0.3;
            pointer-events: none;
        }

        .breadcrumb {
            font-size: 13px;
            color: var(--muted);
            margin-bottom: 24px;
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 8px;
            font-family: var(--font-display);
            text-transform: uppercase;
            letter-spacing: 1px;
            position: relative;
            z-index: 2;
        }

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

        .page-hero h1 {
            font-family: var(--font-display);
            font-size: clamp(32px, 5vw, 48px);
            font-weight: 700;
            color: var(--text);
            margin-bottom: 24px;
            line-height: 1.2;
            text-shadow: 0 0 30px var(--accent-glow);
            position: relative;
            z-index: 2;
        }

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

        .chip {
            background: rgba(13, 34, 48, 0.6);
            border: 1px solid rgba(34, 211, 238, 0.2);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            display: flex;
            align-items: center;
            gap: 6px;
            backdrop-filter: blur(4px);
        }

        /* MAIN CONTENT AREA */
        .content-wrapper {
            max-width: 860px;
            margin: 0 auto;
            padding: 60px 20px;
        }

        /* INTRO BLOCK */
        .intro-block {
            background: linear-gradient(90deg, rgba(34, 211, 238, 0.1) 0%, transparent 100%);
            border-left: 4px solid var(--accent);
            padding: 24px 32px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin-bottom: 48px;
            font-size: 18px;
            line-height: 1.8;
            color: var(--text);
            position: relative;
        }

        .intro-block::before {
            content: '"';
            position: absolute;
            top: -10px;
            left: 20px;
            font-family: var(--font-display);
            font-size: 60px;
            color: rgba(34, 211, 238, 0.2);
            line-height: 1;
        }

        /* TYPOGRAPHY IN CONTENT */
        .content-section {
            margin-bottom: 56px;
        }

        .content-section h2 {
            font-family: var(--font-display);
            font-size: clamp(24px, 4vw, 32px);
            color: var(--text);
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 16px;
            line-height: 1.3;
        }

        .content-section h2::before {
            content: '';
            display: block;
            width: 32px;
            height: 4px;
            background: var(--accent);
            border-radius: 2px;
            box-shadow: 0 0 10px var(--accent);
        }

        .content-section p {
            margin-bottom: 20px;
            color: var(--muted);
            font-size: 16px;
            line-height: 1.8;
        }

        .content-section p a {
            color: var(--accent);
            font-weight: 600;
            border-bottom: 1px dashed rgba(34, 211, 238, 0.4);
        }

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

        /* CUSTOM LISTS */
        .aqua-list {
            list-style: none;
            margin: 32px 0;
            padding: 0;
            counter-reset: aqua-counter;
            display: grid;
            gap: 16px;
        }

        .aqua-list li {
            position: relative;
            padding: 16px 20px 16px 64px;
            background: var(--surface);
            border: 1px solid rgba(255, 255, 255, 0.03);
            border-radius: var(--radius-md);
            color: var(--text);
            font-size: 16px;
            line-height: 1.6;
            transition: var(--transition);
        }

        .aqua-list li:hover {
            border-color: rgba(34, 211, 238, 0.3);
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.2);
        }

        .aqua-list li::before {
            counter-increment: aqua-counter;
            content: counter(aqua-counter);
            position: absolute;
            left: 16px;
            top: 50%;
            transform: translateY(-50%);
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, var(--accent), #0284c7);
            color: #fff;
            font-family: var(--font-display);
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            box-shadow: 0 4px 10px rgba(34, 211, 238, 0.3);
        }

        /* FAQ SECTION */
        .faq-container {
            margin-top: 64px;
            background: var(--surface);
            padding: 40px;
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255,255,255,0.05);
        }

        .faq-container h2 {
            font-family: var(--font-display);
            font-size: 28px;
            text-align: center;
            margin-bottom: 32px;
            color: var(--text);
        }

        .faq-container details {
            margin-bottom: 16px;
            background: var(--bg);
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255,255,255,0.05);
            overflow: hidden;
        }

        .faq-container summary {
            padding: 20px;
            font-family: var(--font-display);
            font-size: 18px;
            font-weight: 600;
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--accent);
            transition: var(--transition);
        }

        .faq-container summary::-webkit-details-marker {
            display: none;
        }

        .faq-container summary::after {
            content: '+';
            font-size: 24px;
            color: var(--muted);
            transition: transform 0.3s ease;
        }

        .faq-container details[open] summary {
            background: rgba(34, 211, 238, 0.05);
        }

        .faq-container details[open] summary::after {
            transform: rotate(45deg);
            color: var(--accent);
        }

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

        /* RELATED PAGES BLOCK */
        .related-nav-block {
            margin: 64px 0;
            padding-top: 40px;
            border-top: 1px solid rgba(255,255,255,0.05);
        }

        .related-nav-block h3 {
            font-family: var(--font-display);
            font-size: 20px;
            margin-bottom: 24px;
            color: var(--text);
            text-align: center;
        }

        .related-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        .related-grid a {
            display: inline-block;
            padding: 12px 24px;
            background: var(--surface);
            border: 1px solid rgba(34, 211, 238, 0.2);
            border-radius: 30px;
            font-family: var(--font-display);
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .related-grid a:hover {
            background: rgba(34, 211, 238, 0.1);
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(34, 211, 238, 0.15);
        }

        /* CTA MEGA BLOCK */
        .cta-mega {
            background: linear-gradient(135deg, var(--surface) 0%, #082f42 100%);
            border-radius: var(--radius-lg);
            padding: 60px 40px;
            text-align: center;
            margin: 64px 0 20px;
            position: relative;
            overflow: hidden;
            border: 1px solid rgba(34, 211, 238, 0.2);
            box-shadow: 0 20px 40px rgba(0,0,0,0.4);
        }

        .cta-mega::before {
            content: '';
            position: absolute;
            top: -50%; left: -50%; width: 200%; height: 200%;
            background: radial-gradient(circle, rgba(163, 230, 53, 0.05) 0%, transparent 50%);
            pointer-events: none;
        }

        .cta-mega h2 {
            font-family: var(--font-display);
            font-size: clamp(28px, 5vw, 40px);
            color: #fff;
            margin-bottom: 16px;
            text-shadow: 0 2px 10px rgba(0,0,0,0.5);
        }

        .cta-mega p {
            color: var(--muted);
            font-size: 18px;
            margin-bottom: 40px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-buttons {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 16px 32px;
            font-family: var(--font-display);
            font-size: 16px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            border-radius: var(--radius-sm);
            min-width: 180px;
            min-height: 44px; /* Touch target */
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-primary {
            background: var(--accent2);
            color: #000;
            border: none;
            box-shadow: 0 0 20px rgba(163, 230, 53, 0.3);
        }

        .btn-primary:hover {
            background: #b4f744;
            color: #000;
            transform: translateY(-3px);
            box-shadow: 0 10px 25px rgba(163, 230, 53, 0.5);
        }

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

        .btn-secondary:hover {
            background: rgba(34, 211, 238, 0.1);
            color: var(--accent);
            transform: translateY(-3px);
        }

        /* FOOTER (A2) STYLES */
        footer {
            background-color: var(--bg);
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding: 60px 0 20px;
            margin-top: 40px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand p {
            color: var(--muted);
            margin-top: 16px;
            font-size: 14px;
            max-width: 300px;
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .footer-links div {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-links a {
            color: var(--muted);
            font-size: 14px;
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            color: var(--muted);
            font-size: 14px;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-links {
                grid-template-columns: repeat(2, 1fr);
            }
            .intro-block {
                padding: 20px;
                font-size: 16px;
            }
            .faq-container {
                padding: 24px 16px;
            }
            .cta-buttons {
                flex-direction: column;
            }
            .btn {
                width: 100%;
            }
        }

        @media (max-width: 390px) {
            .footer-links {
                grid-template-columns: 1fr;
            }
            .page-hero {
                padding: 60px 16px 40px;
            }
            .content-wrapper {
                padding: 40px 16px;
            }
            .aqua-list li {
                padding-left: 56px;
            }
            .aqua-list li::before {
                width: 28px;
                height: 28px;
                font-size: 14px;
            }
        }


/* 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; }