:root {
            --bg: #041214;
            --surface: #0a2226;
            --surface-light: #113339;
            --accent: #ffd166;
            --accent2: #14b8a6;
            --text: #effcff;
            --muted: #8fb0b3;
            --font-display: 'Russo One', sans-serif;
            --font-body: 'Open Sans', sans-serif;
            --container-w: 1024px;
            --transition: all 0.3s ease;
        }

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

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

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

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

        .container {
            width: 100%;
            max-width: var(--container-w);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Typography */
        h1, h2, h3, h4, .brand {
            font-family: var(--font-display);
            font-weight: 400;
            line-height: 1.2;
        }

        h1 { font-size: 2rem; color: var(--text); margin-bottom: 1rem; text-transform: uppercase; letter-spacing: 1px; }
        h2 { font-size: 1.5rem; color: var(--accent); margin-bottom: 1rem; }
        h3 { font-size: 1.25rem; color: var(--text); margin-bottom: 0.75rem; }

        p { margin-bottom: 1rem; }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            font-family: var(--font-display);
            font-size: 14px;
            text-transform: uppercase;
            letter-spacing: 1px;
            min-height: 44px;
            cursor: pointer;
            clip-path: polygon(10px 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
            transition: var(--transition);
            border: none;
            text-align: center;
        }

        .btn-primary {
            background-color: var(--accent);
            color: var(--bg);
        }

        .btn-primary:hover {
            background-color: #ffdf99;
            color: var(--bg);
            box-shadow: 0 0 15px rgba(255, 209, 102, 0.4);
            transform: translateY(-2px);
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--accent2);
            border: 2px solid var(--accent2);
            /* Adjust clip-path for border appearance */
            clip-path: none;
            border-radius: 4px;
            position: relative;
            z-index: 1;
            overflow: hidden;
        }

        .btn-secondary::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: var(--accent2);
            z-index: -1;
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.3s ease;
        }

        .btn-secondary:hover {
            color: var(--bg);
            border-color: var(--accent2);
        }

        .btn-secondary:hover::before {
            transform: scaleX(1);
        }

        /* --- HEADER (Part A1 Styles) --- */
        header {
            background-color: rgba(4, 18, 20, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--surface);
            position: sticky;
            top: 0;
            z-index: 100;
        }

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

        .brand {
            font-size: 24px;
            color: var(--text);
            text-transform: uppercase;
            letter-spacing: 2px;
        }

        .brand span {
            color: var(--accent2);
        }

        .nav-links {
            display: flex;
            gap: 20px;
        }

        .nav-links a {
            color: var(--text);
            font-size: 14px;
            font-weight: 600;
            text-transform: uppercase;
            padding: 10px 0;
        }

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

        .header-actions {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text);
            font-size: 28px;
            cursor: pointer;
            min-width: 44px;
            min-height: 44px;
        }

        /* --- HERO BANNER --- */
        .hero-banner {
            padding: 60px 0 40px;
            background: radial-gradient(circle at 50% 0%, rgba(20, 184, 166, 0.15) 0%, var(--bg) 70%);
            text-align: center;
            border-bottom: 1px solid var(--surface);
            position: relative;
        }

        .breadcrumb {
            font-size: 12px;
            color: var(--muted);
            margin-bottom: 20px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .meta-chips {
            display: flex;
            justify-content: center;
            gap: 10px;
            flex-wrap: wrap;
            margin-top: 20px;
        }

        .chip {
            background-color: var(--surface);
            border: 1px solid var(--accent2);
            color: var(--accent2);
            padding: 6px 12px;
            font-size: 12px;
            font-weight: 600;
            border-radius: 20px;
            display: inline-flex;
            align-items: center;
            box-shadow: 0 0 10px rgba(20, 184, 166, 0.1);
        }

        /* --- MAIN CONTENT --- */
        .page-content {
            padding: 50px 20px;
        }

        .intro-box {
            background-color: var(--surface);
            border-left: 4px solid var(--accent);
            padding: 25px;
            margin-bottom: 40px;
            font-size: 1.1rem;
            color: var(--text);
            box-shadow: 0 10px 30px rgba(0,0,0,0.5);
            position: relative;
        }

        .intro-box::after {
            content: '';
            position: absolute;
            top: 0; right: 0;
            width: 30px; height: 30px;
            background: linear-gradient(225deg, var(--bg) 50%, transparent 50%);
        }

        .content-grid {
            display: grid;
            gap: 30px;
            margin-bottom: 50px;
        }

        .dossier-card {
            background-color: var(--surface);
            padding: 30px;
            position: relative;
            border: 1px solid rgba(143, 176, 179, 0.1);
            transition: var(--transition);
        }

        .dossier-card:hover {
            border-color: rgba(20, 184, 166, 0.3);
            box-shadow: 0 5px 20px rgba(0,0,0,0.4), inset 0 0 20px rgba(20, 184, 166, 0.05);
        }

        /* Decorative stadium/tech corners */
        .dossier-card::before, .dossier-card::after {
            content: '';
            position: absolute;
            width: 15px; height: 15px;
            border: 2px solid var(--accent2);
            transition: var(--transition);
        }
        .dossier-card::before { top: -1px; left: -1px; border-right: none; border-bottom: none; }
        .dossier-card::after { bottom: -1px; right: -1px; border-left: none; border-top: none; }

        .dossier-card:hover::before, .dossier-card:hover::after {
            width: 25px; height: 25px;
            border-color: var(--accent);
        }

        /* Custom List for Hero Steps */
        .hero-list {
            list-style: none;
            counter-reset: hero-counter;
            margin-top: 20px;
        }

        .hero-list li {
            position: relative;
            padding-left: 45px;
            margin-bottom: 15px;
            background: rgba(17, 51, 57, 0.4);
            padding-top: 12px;
            padding-bottom: 12px;
            padding-right: 15px;
            border-radius: 0 8px 8px 0;
            border-left: 2px solid var(--accent2);
        }

        .hero-list li::before {
            content: counter(hero-counter);
            counter-increment: hero-counter;
            position: absolute;
            left: -10px;
            top: 50%;
            transform: translateY(-50%);
            background-color: var(--accent2);
            color: var(--bg);
            font-family: var(--font-display);
            width: 30px;
            height: 30px;
            display: flex;
            align-items: center;
            justify-content: center;
            clip-path: polygon(20% 0%, 100% 0, 80% 100%, 0% 100%);
            font-size: 14px;
            box-shadow: 2px 2px 5px rgba(0,0,0,0.5);
        }

        /* --- FAQ SECTION --- */
        .faq-section {
            margin: 50px 0;
        }

        .faq-section h2 {
            text-align: center;
            margin-bottom: 30px;
        }

        details {
            background-color: var(--surface);
            margin-bottom: 15px;
            border: 1px solid rgba(20, 184, 166, 0.2);
            border-radius: 4px;
            overflow: hidden;
        }

        summary {
            padding: 18px 20px;
            font-family: var(--font-display);
            font-size: 16px;
            color: var(--text);
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background-color: rgba(17, 51, 57, 0.5);
            min-height: 44px;
        }

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

        summary::after {
            content: '+';
            color: var(--accent2);
            font-size: 24px;
            line-height: 1;
            transition: transform 0.3s ease;
        }

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

        details[open] summary {
            border-bottom: 1px solid rgba(20, 184, 166, 0.2);
        }

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

        /* --- RELATED LINKS --- */
        .related-links {
            background: linear-gradient(90deg, var(--surface) 0%, var(--bg) 100%);
            padding: 30px;
            border-left: 4px solid var(--accent2);
            margin: 50px 0;
        }

        .related-links h3 {
            color: var(--accent2);
            text-transform: uppercase;
            font-size: 1rem;
            letter-spacing: 2px;
        }

        .link-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin-top: 15px;
        }

        .link-grid a {
            background-color: rgba(4, 18, 20, 0.8);
            border: 1px solid var(--muted);
            padding: 10px 20px;
            color: var(--text);
            font-size: 14px;
            text-transform: uppercase;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            min-height: 44px;
        }

        .link-grid a:hover {
            border-color: var(--accent);
            color: var(--accent);
            background-color: var(--surface);
        }

        /* --- CTA BLOCK --- */
        .cta-block {
            text-align: center;
            padding: 60px 20px;
            background: linear-gradient(135deg, var(--surface) 0%, #061a1d 100%);
            border: 1px solid rgba(255, 209, 102, 0.2);
            position: relative;
            overflow: hidden;
            margin-bottom: 40px;
        }

        .cta-block::before {
            content: '';
            position: absolute;
            top: -50%; left: -50%; width: 200%; height: 200%;
            background: radial-gradient(circle, rgba(20, 184, 166, 0.05) 0%, transparent 60%);
            z-index: 0;
        }

        .cta-block h2, .cta-actions {
            position: relative;
            z-index: 1;
        }

        .cta-block h2 {
            font-size: 2rem;
            color: var(--text);
            margin-bottom: 30px;
        }

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

        /* --- FOOTER (Part A2 Styles) --- */
        footer {
            background-color: #02090a;
            padding: 60px 0 20px;
            border-top: 2px solid var(--surface);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand h2 {
            font-size: 28px;
            color: var(--text);
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 15px;
        }

        .footer-brand h2 span { color: var(--accent2); }

        .footer-tagline {
            color: var(--muted);
            font-size: 14px;
            max-width: 300px;
        }

        .footer-links-group h4 {
            color: var(--text);
            margin-bottom: 20px;
            font-size: 16px;
            text-transform: uppercase;
        }

        .footer-links-group a {
            display: block;
            color: var(--muted);
            margin-bottom: 10px;
            font-size: 14px;
            min-height: 24px; /* Touch target consideration */
            padding: 4px 0;
        }

        .footer-links-group a:hover {
            color: var(--accent2);
            padding-left: 5px;
        }

        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid var(--surface);
            color: var(--muted);
            font-size: 12px;
        }

        /* --- MEDIA QUERIES --- */
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .footer-brand { grid-column: span 2; }
        }

        @media (max-width: 768px) {
            h1 { font-size: 1.5rem; }
            .header-actions .btn-secondary { display: none; }
            .nav-links {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--surface);
                flex-direction: column;
                padding: 20px;
                border-bottom: 1px solid var(--accent2);
            }
            .nav-links.active { display: flex; }
            .mobile-toggle { display: block; }

            .content-grid { gap: 20px; }
            .dossier-card { padding: 20px; }
            .cta-actions { flex-direction: column; }
            .cta-actions .btn { width: 100%; }
        }

        @media (max-width: 390px) {
            .header-inner { padding: 0 10px; }
            .brand { font-size: 20px; }
            .header-actions .btn-primary { display: none; }
            .page-content { padding: 30px 15px; }
            .intro-box { padding: 15px; font-size: 1rem; }
            h2 { font-size: 1.25rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 30px; }
            .footer-brand { grid-column: span 1; }
            .link-grid a { width: 100%; justify-content: center; }
        }


/* 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; }