:root {
            --bg: #060f0a;
            --surface: #0d2015;
            --surface-hover: #153322;
            --accent: #fbbf24;
            --accent-glow: rgba(251, 191, 36, 0.3);
            --accent2: #34d399;
            --text: #f0fdf4;
            --muted: #8fa898;
            --font-display: 'Oswald', sans-serif;
            --font-body: 'Fira Sans', sans-serif;
            --container: 1200px;
        }

        * {
            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;
            background-image:
                radial-gradient(circle at 15% 50%, rgba(13, 32, 21, 0.8) 0%, transparent 50%),
                radial-gradient(circle at 85% 30%, rgba(13, 32, 21, 0.8) 0%, transparent 50%);
            background-attachment: fixed;
        }

        a {
            color: var(--accent2);
            text-decoration: none;
            transition: color 0.3s ease;
        }

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

        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* HEADER STYLES (Provided Structure) */
        header {
            background-color: rgba(6, 15, 10, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(52, 211, 153, 0.2);
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 1rem 0;
        }

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

        .logo {
            font-family: var(--font-display);
            font-size: 2rem;
            font-weight: 700;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 2px;
            text-shadow: 0 0 15px var(--accent-glow);
        }

        .nav-links {
            display: none;
            gap: 2rem;
        }

        .nav-links a {
            color: var(--text);
            font-family: var(--font-display);
            font-weight: 500;
            text-transform: uppercase;
            letter-spacing: 1px;
            font-size: 1rem;
        }

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

        .menu-toggle {
            display: block;
            background: none;
            border: none;
            color: var(--accent);
            font-size: 2rem;
            cursor: pointer;
            padding: 0.5rem;
            min-height: 44px;
            min-width: 44px;
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            background-color: var(--surface);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            border-bottom: 1px solid var(--accent2);
            padding: 1rem 0;
        }

        .mobile-menu.active {
            display: flex;
        }

        .mobile-menu a {
            padding: 1rem 1.5rem;
            color: var(--text);
            font-family: var(--font-display);
            text-transform: uppercase;
            border-bottom: 1px solid rgba(143, 168, 152, 0.1);
        }

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

        /* HERO & BREADCRUMB */
        .hero {
            padding: 4rem 0 3rem;
            position: relative;
            background: linear-gradient(to bottom, rgba(13, 32, 21, 0.5), var(--bg));
            border-bottom: 1px solid rgba(251, 191, 36, 0.1);
        }

        .breadcrumb {
            font-size: 0.875rem;
            color: var(--muted);
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-family: var(--font-display);
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        h1 {
            font-family: var(--font-display);
            font-size: clamp(2.5rem, 5vw, 4rem);
            color: var(--accent);
            line-height: 1.1;
            margin-bottom: 1.5rem;
            text-transform: uppercase;
            text-shadow: 2px 2px 0px rgba(0,0,0,0.5);
        }

        .meta-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-bottom: 2rem;
        }

        .chip {
            background-color: var(--surface);
            border: 1px solid rgba(52, 211, 153, 0.3);
            color: var(--accent2);
            padding: 0.5rem 1rem;
            border-radius: 2rem;
            font-size: 0.875rem;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        /* MAIN CONTENT AREA */
        main {
            padding: 3rem 0;
        }

        .content-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 3rem;
        }

        @media (min-width: 1024px) {
            .content-grid {
                grid-template-columns: 2fr 1fr;
            }
        }

        .article-body {
            max-width: 800px;
        }

        .intro-block {
            background: linear-gradient(135deg, var(--surface) 0%, rgba(13, 32, 21, 0.4) 100%);
            border-left: 4px solid var(--accent);
            padding: 2rem;
            border-radius: 0 12px 12px 0;
            margin-bottom: 3rem;
            font-size: 1.125rem;
            color: var(--text);
            box-shadow: 0 10px 30px rgba(0,0,0,0.5);
            position: relative;
            overflow: hidden;
        }

        .intro-block::after {
            content: '';
            position: absolute;
            top: -50px;
            right: -50px;
            width: 100px;
            height: 100px;
            background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
            border-radius: 50%;
        }

        .section-card {
            margin-bottom: 3rem;
        }

        h2 {
            font-family: var(--font-display);
            font-size: 1.75rem;
            color: var(--text);
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 1rem;
            text-transform: uppercase;
            border-bottom: 1px solid rgba(143, 168, 152, 0.2);
            padding-bottom: 0.5rem;
        }

        h2::before {
            content: '';
            display: block;
            width: 12px;
            height: 12px;
            background-color: var(--accent);
            border-radius: 2px;
            transform: rotate(45deg);
        }

        p {
            margin-bottom: 1.5rem;
            color: #d1e0d7;
        }

        /* CHECKLIST STYLING */
        .survival-list {
            list-style: none;
            background-color: var(--surface);
            padding: 2rem;
            border-radius: 12px;
            border: 1px solid rgba(251, 191, 36, 0.2);
            margin-bottom: 2rem;
        }

        .survival-list li {
            position: relative;
            padding-left: 2.5rem;
            margin-bottom: 1rem;
            color: var(--text);
        }

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

        .survival-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            top: 0;
            width: 24px;
            height: 24px;
            background-color: rgba(52, 211, 153, 0.1);
            color: var(--accent2);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            border: 1px solid var(--accent2);
        }

        /* FAQ ACCORDION */
        .faq-section {
            margin-top: 4rem;
        }

        .faq-title {
            color: var(--accent);
            font-size: 2rem;
            margin-bottom: 2rem;
            text-align: center;
            border: none;
        }
        .faq-title::before { display: none; }

        details {
            background-color: var(--surface);
            border: 1px solid rgba(143, 168, 152, 0.2);
            border-radius: 8px;
            margin-bottom: 1rem;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        details[open] {
            border-color: var(--accent);
            box-shadow: 0 4px 15px rgba(0,0,0,0.3);
        }

        summary {
            padding: 1.25rem 1.5rem;
            font-family: var(--font-display);
            font-size: 1.125rem;
            font-weight: 500;
            color: var(--text);
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: rgba(13, 32, 21, 0.5);
        }

        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);
        }

        details p {
            padding: 1.5rem;
            margin: 0;
            border-top: 1px solid rgba(143, 168, 152, 0.1);
            color: #d1e0d7;
        }

        /* SIDEBAR / RELATED LINKS */
        .sidebar {
            position: sticky;
            top: 100px;
        }

        .related-card {
            background-color: var(--surface);
            border-radius: 12px;
            padding: 2rem;
            border: 1px solid rgba(52, 211, 153, 0.2);
        }

        .related-card h3 {
            font-family: var(--font-display);
            color: var(--accent2);
            margin-bottom: 1.5rem;
            text-transform: uppercase;
            font-size: 1.25rem;
            letter-spacing: 1px;
        }

        .nav-waypoints {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .nav-waypoints a {
            display: block;
            padding: 1rem;
            background-color: rgba(6, 15, 10, 0.5);
            border-radius: 8px;
            color: var(--text);
            border-left: 3px solid transparent;
            transition: all 0.3s ease;
            font-weight: 500;
        }

        .nav-waypoints a:hover {
            background-color: var(--surface-hover);
            border-left-color: var(--accent);
            transform: translateX(5px);
        }

        /* CTA SECTION */
        .cta-mega {
            margin: 4rem 0;
            padding: 4rem 2rem;
            background: radial-gradient(circle at center, var(--surface) 0%, var(--bg) 100%);
            border: 1px solid rgba(251, 191, 36, 0.3);
            border-radius: 16px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-mega::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background-image: repeating-linear-gradient(45deg, rgba(251, 191, 36, 0.03) 0px, rgba(251, 191, 36, 0.03) 2px, transparent 2px, transparent 10px);
            pointer-events: none;
        }

        .cta-mega h3 {
            font-family: var(--font-display);
            font-size: 2.5rem;
            color: var(--accent);
            margin-bottom: 1rem;
            text-transform: uppercase;
        }

        .cta-mega p {
            font-size: 1.125rem;
            max-width: 600px;
            margin: 0 auto 2rem;
        }

        .cta-buttons {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 1rem 2.5rem;
            font-family: var(--font-display);
            font-size: 1.125rem;
            font-weight: 600;
            text-transform: uppercase;
            border-radius: 4px;
            min-height: 44px;
            transition: all 0.3s ease;
            letter-spacing: 1px;
        }

        .btn-primary {
            background-color: var(--accent);
            color: var(--bg);
            border: none;
            box-shadow: 0 4px 15px rgba(251, 191, 36, 0.4);
        }

        .btn-primary:hover {
            background-color: #f59e0b;
            color: var(--bg);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(251, 191, 36, 0.6);
        }

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

        .btn-outline:hover {
            background-color: rgba(52, 211, 153, 0.1);
            color: var(--text);
            transform: translateY(-2px);
        }

        /* FOOTER STYLES (Provided Structure) */
        footer {
            background-color: #040a07;
            padding: 4rem 0 2rem;
            border-top: 1px solid rgba(143, 168, 152, 0.2);
            margin-top: auto;
        }

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

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

        @media (min-width: 1024px) {
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr 1fr;
            }
        }

        .footer-brand .logo {
            display: inline-block;
            margin-bottom: 1rem;
        }

        .footer-tagline {
            color: var(--muted);
            font-size: 0.875rem;
        }

        .footer-links h4 {
            font-family: var(--font-display);
            color: var(--text);
            font-size: 1.25rem;
            margin-bottom: 1.5rem;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .footer-links ul {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 0.75rem;
        }

        .footer-links a {
            color: var(--muted);
            font-size: 0.875rem;
        }

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

        .footer-bottom {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(143, 168, 152, 0.1);
            color: var(--muted);
            font-size: 0.875rem;
        }


/* 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; }