/* Base */
:root {
	--color-bg: #0b0c0f;
	--color-surface: #12141a;
	--color-text: #e6e8ee;
	--color-muted: #a4a9b6;
	--color-primary: #4f7cf7;
	--color-border: #232634;
	--radius: 12px;
	--shadow: 0 10px 30px rgba(0,0,0,0.35);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
	margin: 0;
	font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
	color: var(--color-text);
	background: radial-gradient(1200px 800px at 70% -10%, rgba(79,124,247,0.15), transparent 60%), var(--color-bg);
	line-height: 1.6;
}

.container {
	width: min(1120px, 92%);
	margin: 0 auto;
}

.section { padding: 72px 0; }
.section-title {
	margin: 0 0 24px;
	font-size: 28px;
	font-weight: 700;
}

/* Header */
.site-header {
	position: sticky;
	top: 0;
	background: rgba(11,12,15,0.8);
	backdrop-filter: blur(8px);
	border-bottom: 1px solid var(--color-border);
	z-index: 10;
}
.site-header .container { display: flex; align-items: center; gap: 20px; padding: 14px 0; }
.logo img { height: 28px; display: block; }

.nav-toggle { display: none; background: none; border: 1px solid var(--color-border); color: var(--color-text); padding: 8px 10px; border-radius: 8px; }
.site-nav ul { display: flex; list-style: none; padding: 0; margin: 0; gap: 18px; }
.site-nav a { color: var(--color-text); text-decoration: none; padding: 8px 10px; border-radius: 8px; }
.site-nav a:hover { background: var(--color-surface); }

/* Hero */
.grid-2 { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 36px; align-items: center; }
.hero .hero-text h1 { font-size: 40px; margin: 0 0 12px; }
.hero .hero-text p { color: var(--color-muted); margin: 0 0 20px; }
.actions { display: flex; gap: 12px; }
.btn { display: inline-block; padding: 10px 16px; border-radius: 10px; border: 1px solid var(--color-border); color: var(--color-text); text-decoration: none; }
.btn.primary { background: var(--color-primary); border-color: transparent; color: #fff; box-shadow: var(--shadow); }
.hero-media img { width: 100%; border-radius: var(--radius); border: 1px solid var(--color-border); box-shadow: var(--shadow); background: var(--color-surface); }

/* Features */
.feature-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; padding: 0; list-style: none; }
.feature-item { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 20px; }
.feature-item img { width: 64px; height: 64px; object-fit: contain; display: block; margin-bottom: 12px; }
.feature-item h3 { margin: 0 0 6px; font-size: 18px; }
.feature-item p { margin: 0; color: var(--color-muted); }

/* Showcase */
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 16px; }
.card img { width: 100%; height: 160px; object-fit: cover; border-radius: 8px; margin-bottom: 10px; background: #0e1016; }
.card h3 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--color-muted); }

/* Contact */
.contact-form { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 20px; }
.contact-form label { display: grid; gap: 6px; }
.contact-form label.full { grid-column: 1 / -1; }
.contact-form input, .contact-form textarea { width: 100%; padding: 10px 12px; border-radius: 8px; border: 1px solid var(--color-border); background: #0f1117; color: var(--color-text); }
.contact-form button { justify-self: start; }

/* Footer */
.site-footer { border-top: 1px solid var(--color-border); background: #0b0c0f; }
.site-footer .container { padding: 20px 0; color: var(--color-muted); font-size: 14px; }

/* Responsive */
@media (max-width: 960px) {
	.grid-2 { grid-template-columns: 1fr; }
	.hero-media { order: -1; }
	.feature-list { grid-template-columns: 1fr 1fr; }
	.card-grid { grid-template-columns: 1fr 1fr; }
	.nav-toggle { display: inline-block; }
	.site-nav { display: none; }
	.site-nav.open { display: block; position: absolute; left: 0; right: 0; top: 58px; background: var(--color-surface); border-bottom: 1px solid var(--color-border); }
	.site-nav ul { flex-direction: column; padding: 10px; }
}

@media (max-width: 600px) {
	.feature-list, .card-grid { grid-template-columns: 1fr; }
	.section { padding: 56px 0; }
	.hero .hero-text h1 { font-size: 32px; }
}