:root {
    --primary: #FBBF24;
    --primary-hover: #F59E0B;
    --bg-dark: #120E08;
    --bg-card: #1E170D;
    --bg-card-hover: #291F11;
    --text-main: #FFFFFF;
    --text-muted: #B8A98C;
    --border-color: #3A2E1A;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif; background: var(--bg-dark); color: var(--text-main); line-height: 1.6; overflow-x: hidden; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

.navbar { position: fixed; top: 0; width: 100%; height: 70px; background: rgba(18, 14, 8, 0.88); backdrop-filter: blur(10px); z-index: 1000; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; padding: 0 5%; }
.nav-brand { font-size: 22px; font-weight: bold; color: var(--primary); display: flex; align-items: center; gap: 10px; }
.nav-domain { font-size: 12px; font-weight: 400; color: var(--text-muted); letter-spacing: 0.2px; }
.nav-links { display: flex; gap: 28px; }
.nav-links a { font-weight: 500; transition: color 0.3s; }
.nav-links a:hover { color: var(--primary); }
.nav-actions { display: flex; gap: 15px; align-items: center; }
.btn { display: inline-block; padding: 10px 22px; border-radius: 8px; font-weight: 700; text-align: center; transition: all 0.3s; cursor: pointer; border: none; }
.btn-primary { background: var(--primary); color: #1A1204; box-shadow: 0 0 16px rgba(251,191,36,0.35); }
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-2px); box-shadow: 0 0 24px rgba(251,191,36,0.5); }
.btn-secondary { background: transparent; border: 1px solid var(--primary); color: var(--primary); }
.btn-secondary:hover { background: rgba(251,191,36,0.1); transform: translateY(-2px); }
.btn-outline { border: 1px solid var(--text-muted); color: var(--text-main); padding: 8px 16px; background: transparent; }
.btn-outline:hover { border-color: var(--text-main); }
.menu-toggle { display: none; font-size: 26px; cursor: pointer; color: var(--text-main); background: none; border: none; }
.nav-menu-wrapper { display: flex; align-items: center; gap: 28px; }

section { padding: 90px 5%; max-width: 1200px; margin: 0 auto; }
.section-title { text-align: center; font-size: 32px; margin-bottom: 18px; }
.section-subtitle { text-align: center; color: var(--text-muted); margin-bottom: 50px; font-size: 17px; }

.hero {
    display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 92vh; text-align: center; padding-top: 110px;
    position: relative; overflow: hidden;
    background: radial-gradient(ellipse at bottom, var(--bg-card) 0%, var(--bg-dark) 100%);
}
.hero::before {
    content: ''; position: absolute; inset: 0; z-index: 0; pointer-events: none;
    background:
        radial-gradient(ellipse 55% 45% at 15% 12%, rgba(251,191,36,0.22) 0%, transparent 70%),
        radial-gradient(ellipse 50% 55% at 88% 88%, rgba(245,158,11,0.2) 0%, transparent 70%);
    animation: drift 14s ease-in-out infinite alternate;
}
@keyframes drift { 0% { transform: scale(1); opacity: .75; } 100% { transform: scale(1.14); opacity: 1; } }
.promo-tag { position: relative; z-index: 1; background: rgba(251,191,36,0.12); color: var(--primary); padding: 6px 20px; border-radius: 20px; font-size: 14px; font-weight: bold; margin-bottom: 26px; border: 1px solid var(--primary); display: inline-block; }
.hero h1 { position: relative; z-index: 1; font-size: 46px; margin-bottom: 20px; line-height: 1.28; letter-spacing: -0.5px; max-width: 900px; }
.hero p { position: relative; z-index: 1; font-size: 18px; color: var(--text-muted); max-width: 720px; margin-bottom: 34px; }
.hero-btns { position: relative; z-index: 1; display: flex; gap: 18px; }
.hero-stats { position: relative; z-index: 1; display: flex; justify-content: center; gap: 26px; margin: 18px 0 36px; flex-wrap: wrap; color: var(--text-main); font-size: 14.5px; font-weight: 500; }
.hero-stats span { background: rgba(255,255,255,0.05); padding: 8px 16px; border-radius: 8px; border: 1px solid rgba(255,255,255,0.1); }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.card { background: var(--bg-card); padding: 34px 26px; border-radius: 16px; border: 1px solid var(--border-color); transition: transform 0.3s, border-color 0.3s; text-align: left; }
.card:hover { transform: translateY(-8px); background: var(--bg-card-hover); border-color: var(--primary); }
.card-icon { font-size: 36px; margin-bottom: 16px; display: inline-block; }
.card h3 { font-size: 20px; margin-bottom: 12px; }
.card p { color: var(--text-muted); font-size: 14.5px; }

.pricing-card { display: flex; flex-direction: column; text-align: center; position: relative; }
.pricing-card.highlight { transform: scale(1.04); border-color: var(--primary); box-shadow: 0 0 30px rgba(251,191,36,0.14); }
.pricing-card.highlight:hover { transform: scale(1.04) translateY(-8px); }
.highlight-tag { position: absolute; top: -14px; left: 50%; transform: translateX(-50%); background: var(--primary); color: #1A1204; padding: 4px 16px; border-radius: 12px; font-weight: bold; font-size: 13px; white-space: nowrap; }
.price { font-size: 40px; font-weight: bold; margin: 18px 0; color: var(--primary); }
.price span { font-size: 16px; color: var(--text-muted); font-weight: normal; }
.pricing-features { margin: 24px 0; text-align: left; flex-grow: 1; font-size: 14px; }
.pricing-features li { margin-bottom: 13px; display: flex; align-items: flex-start; gap: 10px; color: var(--text-muted); }
.pricing-features li::before { content: "✓"; color: var(--primary); font-weight: bold; }
.pricing-card .btn { width: 100%; margin-top: 18px; }

.feature-row { display: flex; align-items: center; gap: 50px; margin-bottom: 80px; }
.feature-row:nth-child(even) { flex-direction: row-reverse; }
.feature-text { flex: 1; }
.feature-text h2 { font-size: 28px; margin-bottom: 18px; }
.feature-text p { color: var(--text-muted); font-size: 16px; margin-bottom: 24px; }
.feature-visual { flex: 1; background: var(--bg-card); border-radius: 16px; border: 1px solid var(--border-color); padding: 26px; box-shadow: 0 16px 34px rgba(0,0,0,0.35); width: 100%; }

.terminal-header { display: flex; gap: 8px; margin-bottom: 18px; border-bottom: 1px solid rgba(255,255,255,0.1); padding-bottom: 13px; }
.terminal-dot { width: 11px; height: 11px; border-radius: 50%; }
.dot-r { background: #ff5f56; } .dot-y { background: #ffbd2e; } .dot-g { background: #27c93f; }
.terminal-title { margin-left: 8px; font-size: 12px; color: var(--text-muted); font-family: monospace; }
.terminal-body { font-family: monospace; color: #D8C9A8; font-size: 13.5px; white-space: pre-wrap; line-height: 1.55; }
.terminal-body .cmd { color: var(--primary); }
.terminal-body .success { color: #27c93f; }

.data-panel { display: flex; flex-direction: column; gap: 18px; }
.data-bar-row { display: flex; align-items: center; gap: 14px; }
.data-label { width: 76px; font-weight: bold; font-size: 13.5px; color: var(--text-muted); }
.data-bar-bg { flex: 1; height: 8px; background: rgba(255,255,255,0.05); border-radius: 4px; overflow: hidden; }
.data-bar-fill { height: 100%; background: var(--primary); border-radius: 4px; animation: loadBar 2s ease-out forwards; }
@keyframes loadBar { from { width: 0; } }
.data-stat { font-family: monospace; color: var(--primary); font-weight: bold; width: 46px; text-align: right; }

.marquee-wrapper { width: 100%; overflow: hidden; background: var(--bg-card); padding: 54px 0; border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color); }
.marquee-content { display: flex; width: max-content; animation: marquee 25s linear infinite; gap: 26px; padding: 0 15px; }
.marquee-content:hover { animation-play-state: paused; }
.testimonial { width: 330px; background: var(--bg-dark); padding: 26px; border-radius: 16px; border: 1px solid var(--border-color); white-space: normal; flex-shrink: 0; }
.stars { color: var(--primary); margin-bottom: 13px; font-size: 17px; letter-spacing: 2px; }
.testimonial p { color: var(--text-muted); margin-bottom: 18px; font-style: italic; line-height: 1.6; font-size: 14px; }
.testimonial h3 { font-weight: bold; font-size: 14.5px; }
@keyframes marquee { 0% { transform: translateX(0); } 100% { transform: translateX(calc(-50% - 13px)); } }

.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
details { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 8px; transition: all 0.3s; }
details[open] { border-color: var(--primary); }
summary { padding: 18px 20px; font-size: 16.5px; font-weight: bold; cursor: pointer; outline: none; list-style: none; display: flex; justify-content: space-between; align-items: center; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; font-size: 22px; color: var(--primary); transition: transform 0.3s; line-height: 1; }
details[open] summary::after { transform: rotate(45deg); }
details p { padding: 0 20px 18px; color: var(--text-muted); margin: 0; line-height: 1.6; font-size: 14.5px; }

.bottom-cta { text-align: center; padding: 100px 5%; background: radial-gradient(circle at bottom, var(--bg-card) 0%, var(--bg-dark) 100%); border-top: 1px solid var(--border-color); }
.bottom-cta h2 { font-size: 38px; margin-bottom: 20px; }
.bottom-cta p { color: var(--text-muted); margin-bottom: 34px; font-size: 17px; max-width: 560px; margin-inline: auto; }
.bottom-cta .btn { font-size: 17px; padding: 15px 40px; border-radius: 30px; }

footer { border-top: 1px solid var(--border-color); padding: 54px 5% 36px; background: var(--bg-card); text-align: center; }
.footer-logo { font-size: 22px; font-weight: bold; color: var(--primary); margin-bottom: 26px; }
.footer-links { display: flex; justify-content: center; gap: 36px; margin-bottom: 30px; flex-wrap: wrap; }
.footer-links a { color: var(--text-muted); transition: color 0.3s; font-size: 15px; }
.footer-links a:hover { color: var(--primary); }
.footer-friends { margin-bottom: 22px; font-size: 13.5px; color: var(--text-muted); }
.footer-friends a { color: var(--text-muted); transition: color 0.3s; margin: 0 9px; }
.footer-friends a:hover { color: var(--primary); }
.footer-copy { color: #6B5D42; font-size: 13.5px; }

.subpage-header { padding: 150px 5% 54px; text-align: center; background: radial-gradient(circle at top, var(--bg-card) 0%, var(--bg-dark) 100%); border-bottom: 1px solid var(--border-color); }
.subpage-content { padding: 70px 5%; max-width: 800px; margin: 0 auto; color: var(--text-muted); font-size: 15.5px; }
.subpage-content h2 { color: var(--text-main); margin: 36px 0 18px; font-size: 22px; }
.subpage-content p { margin-bottom: 18px; }
.subpage-content ul { padding-left: 20px; margin-bottom: 18px; list-style: disc; }
.subpage-content li { margin-bottom: 9px; }

.insight-list { max-width: 820px; margin: 0 auto; display: grid; gap: 16px; }
.insight-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 16px; padding: 22px 26px; }
.insight-card .meta { font-size: 12.5px; color: var(--primary); margin-bottom: 6px; }
.insight-card h3 { margin: 0 0 8px; font-size: 18px; }
.insight-card h3 a { color: var(--text-main); }
.insight-card h3 a:hover { color: var(--primary); }
.insight-card p { color: var(--text-muted); font-size: 14px; margin: 0; }

@media (max-width: 768px) {
    .nav-menu-wrapper { display: none; flex-direction: column; position: absolute; top: 70px; left: 0; width: 100%; background: var(--bg-dark); padding: 26px 20px; border-bottom: 1px solid var(--border-color); gap: 18px; }
    .nav-menu-wrapper.active { display: flex; }
    .menu-toggle { display: block; }
    .nav-links { flex-direction: column; gap: 18px; text-align: center; width: 100%; }
    .nav-actions { flex-direction: column; width: 100%; gap: 13px; }
    .nav-actions .btn { width: 100%; }
    .hero { padding-top: 130px; }
    .hero h1 { font-size: 32px; }
    .hero p { font-size: 15px; padding: 0 10px; }
    .hero-btns { flex-direction: column; width: 100%; max-width: 300px; }
    .hero-btns .btn { width: 100%; }
    .grid-3 { grid-template-columns: 1fr; gap: 18px; }
    .pricing-card.highlight { transform: scale(1); }
    .feature-row, .feature-row:nth-child(even) { flex-direction: column; gap: 34px; }
    .feature-text { text-align: center; }
    .bottom-cta h2 { font-size: 28px; }
    section { padding: 54px 5%; }
    .hero-stats { gap: 13px; flex-direction: column; align-items: center; }
}