:root {
    --bg: #081018;
    --surface: #122030;
    --accent: #60a5fa;
    --accent2: #fbbf24;
    --text: #f0f6ff;
    --muted: #8fa0b8;
    --font-display: 'Anton', sans-serif;
    --font-body: 'Barlow', sans-serif;
}

* { 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; }
a { color: var(--accent); text-decoration: none; transition: all 0.3s ease; }
a:hover { color: var(--accent2); }
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
h1, h2, h3 { font-family: var(--font-display); font-weight: normal; letter-spacing: 1px; text-transform: uppercase; }

/* Header */
header { background-color: var(--surface); border-bottom: 2px solid var(--accent); 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: 28px; color: var(--text); display: flex; align-items: center; gap: 10px; text-transform: uppercase; letter-spacing: 2px;}
.nav-links { display: none; gap: 20px; }
.nav-links a { color: var(--text); font-weight: 600; font-size: 15px; text-transform: uppercase;}
.nav-links a:hover { color: var(--accent); }
.header-ctas { display: none; gap: 10px; }
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 10px 20px; font-weight: 700; border-radius: 4px; text-transform: uppercase; letter-spacing: 0.5px; cursor: pointer; transition: all 0.3s ease; min-height: 44px; text-align: center;}
.btn-primary { background-color: var(--accent); color: var(--bg); border: 2px solid var(--accent); }
.btn-primary:hover { background-color: var(--text); color: var(--bg); border-color: var(--text); }
.btn-secondary { background-color: transparent; border: 2px solid var(--accent); color: var(--accent); }
.btn-secondary:hover { background-color: var(--accent); color: var(--bg); }
.mobile-toggle { background: none; border: none; color: var(--text); font-size: 28px; cursor: pointer; display: block; min-width: 44px; min-height: 44px;}
.mobile-menu { display: none; background-color: var(--surface); padding: 20px; flex-direction: column; gap: 15px; border-bottom: 2px solid var(--accent); }
.mobile-menu.active { display: flex; }
.mobile-menu a { color: var(--text); font-weight: 600; font-size: 16px; text-transform: uppercase; padding: 8px 0;}

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

/* Hero Banner */
.hero {
    background: linear-gradient(135deg, #0d1824 0%, var(--bg) 100%);
    padding: 50px 0;
    position: relative;
    border-bottom: 1px solid rgba(96, 165, 250, 0.15);
}
.hero::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    background-image: repeating-linear-gradient(45deg, transparent, transparent 10px, rgba(255,255,255,0.01) 10px, rgba(255,255,255,0.01) 20px);
    pointer-events: none;
}
.hero-content { position: relative; z-index: 1; max-width: 800px; margin: 0 auto; text-align: center; }
.breadcrumb { font-size: 14px; color: var(--muted); margin-bottom: 20px; font-weight: 500; }
.hero h1 { font-size: clamp(32px, 5vw, 48px); color: var(--text); margin-bottom: 20px; line-height: 1.1; }
.meta-chips { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.chip {
    background: rgba(96, 165, 250, 0.1); border: 1px solid rgba(96, 165, 250, 0.3);
    padding: 6px 14px; border-radius: 20px; font-size: 13px; color: var(--accent); font-weight: 600;
}

/* Main Content */
.main-content { padding: 50px 0; }
.article-body { max-width: 800px; margin: 0 auto; }

.intro-block {
    font-size: 18px; color: var(--text); padding: 25px 30px;
    background-color: var(--surface); border-left: 4px solid var(--accent);
    border-radius: 0 8px 8px 0; margin-bottom: 50px; font-weight: 500; line-height: 1.7;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.section-block { margin-bottom: 45px; }
.section-header { display: flex; align-items: center; gap: 15px; margin-bottom: 20px; }
.section-badge {
    background-color: var(--accent); color: var(--bg);
    width: 40px; height: 40px; display: flex; align-items: center; justify-content: center;
    font-family: var(--font-display); font-size: 22px; border-radius: 6px; flex-shrink: 0;
}
.section-block h2 { font-size: clamp(24px, 4vw, 28px); color: var(--text); line-height: 1.2; }
.section-block p { color: var(--muted); margin-bottom: 16px; font-size: 16px; line-height: 1.7; }
.section-block p:last-child { margin-bottom: 0; }

/* Custom List */
.custom-list { list-style: none; margin: 20px 0; padding: 0; background: rgba(18,32,48,0.4); border-radius: 8px; padding: 20px;}
.custom-list li {
    position: relative; padding-left: 36px; margin-bottom: 14px; color: var(--text); font-size: 16px; font-weight: 500;
}
.custom-list li:last-child { margin-bottom: 0; }
.custom-list li::before {
    content: '✓'; position: absolute; left: 0; top: 0;
    width: 24px; height: 24px; background-color: var(--accent); color: var(--bg);
    border-radius: 50%; display: flex; align-items: center; justify-content: center;
    font-size: 14px; font-weight: bold;
}

/* Tips Card (Section 6) */
.tips-card {
    background: linear-gradient(180deg, var(--surface) 0%, rgba(18,32,48,0.3) 100%);
    border: 1px solid rgba(251, 191, 36, 0.3); border-radius: 12px; padding: 35px;
    position: relative; overflow: hidden; margin: 60px 0;
}
.tips-card::before {
    content: ''; position: absolute; top: 0; left: 0; width: 4px; height: 100%; background-color: var(--accent2);
}
.tips-card .section-badge { background-color: var(--accent2); color: var(--bg); }
.tips-card h2 { color: var(--accent2); }
.tips-card p { color: #d1d5db; }

/* FAQ */
.faq-section { margin-top: 60px; border-top: 1px solid rgba(255,255,255,0.05); padding-top: 50px;}
.faq-title { text-align: center; font-size: 32px; margin-bottom: 35px; color: var(--text); }
.faq-item {
    background-color: var(--surface); border: 1px solid rgba(255,255,255,0.05);
    border-radius: 8px; margin-bottom: 12px; overflow: hidden; transition: all 0.3s;
}
.faq-item:hover { border-color: rgba(96, 165, 250, 0.3); }
.faq-item summary {
    padding: 20px 25px; font-size: 17px; font-weight: 600; color: var(--text);
    cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; color: var(--accent); font-size: 24px; font-family: monospace; font-weight: normal;}
.faq-item[open] summary { background-color: rgba(96, 165, 250, 0.05); border-bottom: 1px solid rgba(255,255,255,0.05); }
.faq-item[open] summary::after { content: '−'; }
.faq-item p { padding: 20px 25px; color: var(--muted); margin: 0; line-height: 1.6; }

/* Related Pages */
.related-section { margin-top: 60px; padding: 40px; background-color: var(--surface); border-radius: 12px; border: 1px solid rgba(255,255,255,0.05); }
.related-title { font-size: 26px; margin-bottom: 25px; text-align: center; }
.related-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 15px; }
.related-link {
    display: flex; align-items: center; justify-content: center; padding: 16px;
    background-color: var(--bg); border: 1px solid rgba(96, 165, 250, 0.2);
    border-radius: 6px; color: var(--text); font-weight: 600; text-align: center;
}
.related-link:hover {
    border-color: var(--accent); background-color: var(--accent); color: var(--bg);
}

/* Final CTA */
.final-cta {
    margin-top: 60px; background: linear-gradient(135deg, var(--surface) 0%, #0a131c 100%);
    padding: 60px 30px; border-radius: 16px; text-align: center;
    border: 1px solid rgba(96, 165, 250, 0.2); position: relative; overflow: hidden;
}
.final-cta h2 { font-size: 32px; margin-bottom: 15px; color: var(--text); position: relative; z-index: 1;}
.final-cta p { color: var(--muted); margin-bottom: 35px; font-size: 18px; max-width: 600px; margin-left: auto; margin-right: auto; position: relative; z-index: 1;}
.cta-buttons { display: flex; gap: 15px; justify-content: center; flex-wrap: wrap; position: relative; z-index: 1;}
.cta-buttons .btn { min-width: 180px; font-size: 16px; padding: 15px 30px;}

/* Footer */
footer { background-color: var(--surface); padding: 60px 0 30px; border-top: 4px solid var(--accent); margin-top: 60px;}
.footer-brand { font-family: var(--font-display); font-size: 32px; color: var(--text); margin-bottom: 15px; text-transform: uppercase; letter-spacing: 2px;}
.footer-tagline { color: var(--muted); margin-bottom: 30px; font-size: 16px; max-width: 400px; }
.footer-links { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; margin-bottom: 40px; }
.footer-links a { color: var(--muted); font-size: 14px; }
.footer-links a:hover { color: var(--accent); }
.footer-copy { color: var(--muted); font-size: 14px; text-align: center; border-top: 1px solid rgba(255,255,255,0.05); padding-top: 20px; }
@media (min-width: 768px) { .footer-links { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1024px) { .footer-links { grid-template-columns: repeat(4, 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; }