/* Design Tokens */
:root {
	--bg: #0b0c10;
	--panel: rgba(255, 255, 255, .06);
	--panel-strong: rgba(255, 255, 255, .10);
	--text: #e8ecf1;
	--muted: #a8b0bb;
	--primary: #7c3aed; /* purple */
	--primary-2: #00e5ff; /* cyan */
	--accent: #a78bfa;
	--danger: #ff6b6b;
	--radius: 14px;
	--radius-sm: 10px;
	--shadow-1: 0 10px 30px rgba(0,0,0,.35);
	--shadow-2: 0 30px 80px rgba(0,0,0,.45);
	--maxw: 1200px;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
	font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, "Noto Sans CJK SC", sans-serif;
	background: radial-gradient(1200px 600px at 80% -10%, rgba(124, 58, 237, .22), transparent 60%), radial-gradient(900px 500px at -10% 10%, rgba(0, 229, 255, .18), transparent 60%), var(--bg);
	color: var(--text);
	line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container {
	max-width: var(--maxw);
	margin: 0 auto;
	padding: 0 24px;
}

/* Top Nav */
.nav {
	position: sticky; top: 0; z-index: 999;
	backdrop-filter: saturate(140%) blur(16px);
	background: linear-gradient(to bottom, rgba(11,12,16,.86), rgba(11,12,16,.55));
	border-bottom: 1px solid rgba(255,255,255,.06);
}
.nav-inner {
	display: flex; align-items: center; justify-content: space-between;
	height: 68px;
}
.brand {
	display: inline-flex; align-items: center; gap: 12px; font-weight: 700;
	letter-spacing: .3px;
}
.brand-badge {
	width: 36px; height: 36px; border-radius: 12px; flex: none;
	background:
			radial-gradient(12px 12px at 30% 30%, rgba(255,255,255,.25), transparent 60%),
			conic-gradient(from 180deg at 50% 50%, var(--primary), var(--primary-2), var(--primary));
	box-shadow: inset 0 0 0 1px rgba(255,255,255,.12), 0 10px 30px rgba(124,58,237,.35), 0 14px 50px rgba(0,229,255,.18);
}
.nav-menu {
	display: flex; gap: 26px; align-items: center;
}
.nav-menu a {
	color: var(--muted); font-weight: 500;
	padding: 8px 10px; border-radius: 10px;
	border: 1px solid transparent;
	transition: background .2s ease, color .2s ease, border-color .2s ease;
}
.nav-menu a:hover {
	color: var(--text);
	background: rgba(255,255,255,.05);
	border-color: rgba(255,255,255,.08);
}
.mobile-toggle { display: none; cursor: pointer; }
/* Ensure mobile panel hidden by default on desktop */
.mobile-panel { display: none; }

/* Hero */
.hero {
	padding: 96px 0 48px;
}
.hero-grid {
	display: grid; grid-template-columns: 1.2fr .8fr; gap: 48px; align-items: center;
}
.eyebrow {
	display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px; border-radius: 999px;
	background: linear-gradient(90deg, rgba(124,58,237,.18), rgba(0,229,255,.18));
	border: 1px solid rgba(255,255,255,.12); color: var(--accent); font-weight: 600;
}
.h1 {
	font-size: clamp(32px, 5vw, 56px); line-height: 1.08; margin: 18px 0 12px; font-weight: 800;
	letter-spacing: -.4px;
}
.subtitle { color: var(--muted); font-size: 18px; }
.hero-cta { display: flex; gap: 14px; margin-top: 28px; flex-wrap: wrap; }
.btn {
	display: inline-flex; align-items: center; gap: 10px; padding: 14px 18px; border-radius: 12px;
	border: 1px solid rgba(255,255,255,.10); color: var(--text); font-weight: 700;
	background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
	box-shadow: var(--shadow-1);
}
.btn.primary {
	background: linear-gradient(135deg, rgba(124,58,237,.85), rgba(0,229,255,.85));
	border: none; color: #0b0c10;
}
.hero-card {
	position: relative; border-radius: var(--radius); padding: 20px; overflow: hidden;
	background:
		radial-gradient(400px 200px at 80% 0%, rgba(124,58,237,.22), transparent 60%),
		radial-gradient(300px 200px at 20% 100%, rgba(0,229,255,.18), transparent 60%),
		linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
	border: 1px solid rgba(255,255,255,.10);
	box-shadow: var(--shadow-2);
}
.kpis {
	display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 12px;
}
.kpi {
	padding: 14px; border-radius: 12px; background: var(--panel); border: 1px solid rgba(255,255,255,.08);
}
.kpi b { font-size: 22px; }
.kpi small { color: var(--muted); }

/* Trust bar */
.trust {
	padding: 18px 0 4px; opacity: .96;
}
.trust-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.trust-item {
	border-radius: 12px; padding: 14px; text-align: center; color: var(--muted);
	background: var(--panel); border: 1px solid rgba(255,255,255,.06);
}

/* Sections */
.section { padding: 72px 0; }
.section .hd { display: flex; align-items: end; justify-content: space-between; gap: 16px; margin-bottom: 28px; }
.h2 { font-size: clamp(22px, 3.2vw, 32px); margin: 0; }
.desc { color: var(--muted); }

/* Solution cards */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card {
	padding: 18px; border-radius: var(--radius-sm); background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
	border: 1px solid rgba(255,255,255,.10); box-shadow: var(--shadow-1);
}
.card h3 { margin: 8px 0 6px; }
.tag {
	display: inline-flex; gap: 6px; align-items: center; padding: 4px 10px; border-radius: 999px; color: var(--accent);
	background: linear-gradient(90deg, rgba(124,58,237,.18), rgba(0,229,255,.18)); border: 1px solid rgba(255,255,255,.12);
	font-weight: 700; font-size: 12px;
}
.card ul { margin: 10px 0 0; padding-left: 18px; color: var(--muted); }

/* Cases */
.case {
	border-radius: var(--radius-sm); padding: 18px; background: var(--panel); border: 1px solid rgba(255,255,255,.08);
}
.case b { display: inline-block; margin-bottom: 4px; }
.case p { margin: 8px 0 0; color: var(--muted); }

/* About */
.about {
	display: grid; grid-template-columns: 1.1fr .9fr; gap: 18px;
}
.kv {
	height: 100%; min-height: 260px; border-radius: var(--radius); border: 1px solid rgba(255,255,255,.1);
	background:
		conic-gradient(from 180deg at 60% 40%, rgba(124,58,237,.18), rgba(0,229,255,.18), rgba(124,58,237,.18)),
		radial-gradient(240px 140px at 20% 80%, rgba(124,58,237,.25), transparent 60%),
		linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
	box-shadow: var(--shadow-2);
	position: relative;
	overflow: hidden;
}
.kv::after {
	content: ""; position: absolute; inset: 0;
	background-image: radial-gradient(rgba(255,255,255,.08) 1px, transparent 1px);
	background-size: 14px 14px; opacity: .6; mix-blend-mode: overlay;
}

/* Contact */
.contact {
	display: grid; grid-template-columns: 1fr 1fr; gap: 18px;
}
.form {
	border-radius: var(--radius-sm); padding: 18px; background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
	border: 1px solid rgba(255,255,255,.10);
}
.field { display: grid; gap: 8px; margin-bottom: 14px; }
.input, .textarea {
	border-radius: 12px; padding: 12px 14px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.10);
	color: var(--text); outline: none;
}
.input:focus, .textarea:focus { border-color: rgba(0,229,255,.5); box-shadow: 0 0 0 4px rgba(0,229,255,.12); }
.textarea { min-height: 120px; resize: vertical; }
.form .btn { width: 100%; justify-content: center; }

/* Footer */
.footer {
	margin-top: 36px; border-top: 1px solid rgba(255,255,255,.08);
	padding: 36px 0; color: var(--muted);
	background: linear-gradient(180deg, transparent, rgba(11,12,16,.4));
}
.footer-content {
	display: flex; align-items: flex-start; justify-content: space-between; gap: 32px; flex-wrap: wrap;
}
.footer-brand {
	display: flex; align-items: center; gap: 12px; flex-shrink: 0;
}
.footer-brand b {
	font-size: 16px; color: var(--text); font-weight: 700;
}
.footer-info {
	display: flex; flex-direction: column; gap: 16px; flex: 1; min-width: 280px;
	align-items: flex-end; text-align: left;
}
.copyright {
	font-size: 13px; color: var(--muted); line-height: 1.6;
}
.beian-group {
	display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
}
.icp-beian, .police-beian {
	display: flex; align-items: center; gap: 6px; font-size: 12px;
}
.beian-separator {
	width: 1px; height: 14px; background: rgba(255,255,255,.15);
}
.icp-beian a, .police-beian a {
	color: var(--muted); text-decoration: none; transition: color .2s ease;
}
.icp-beian a:hover, .police-beian a:hover {
	color: var(--accent);
}
.police-beian img {
	width: 16px; height: 16px; display: inline-block; vertical-align: middle; flex-shrink: 0;
}

/* Responsive */
@media (max-width: 1024px) {
	.hero-grid { grid-template-columns: 1fr; }
	.about { grid-template-columns: 1fr; }
	.contact { grid-template-columns: 1fr; }
	.trust-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 760px) {
	.nav-menu { display: none; }
	.mobile-toggle { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); }
	.mobile-panel {
		display: none; position: fixed; inset: 68px 0 0 0; z-index: 998; padding: 18px;
		backdrop-filter: blur(14px); background: rgba(11,12,16,.8); border-top: 1px solid rgba(255,255,255,.08);
	}
	.mobile-panel a { display: block; padding: 12px 8px; border-radius: 10px; color: var(--muted); }
	.grid-3 { grid-template-columns: 1fr; }
	.footer-content {
		flex-direction: column; gap: 20px;
	}
	.footer-brand {
		width: 100%; justify-content: center;
	}
	.footer-info {
		width: 100%; align-items: flex-start; text-align: left;
	}
	.beian-group {
		justify-content: flex-start;
	}
}
/* Micro-interactions */
.card, .case, .kpi, .trust-item, .form { transition: transform .35s cubic-bezier(.2,.8,.2,1), border-color .25s ease, background .25s ease; }
.card:hover, .case:hover, .kpi:hover, .trust-item:hover, .form:hover { transform: translateY(-4px); border-color: rgba(255,255,255,.16); }
.btn.primary { transition: filter .25s ease; }
.btn.primary:hover { filter: brightness(1.05) saturate(1.1); }
.btn:hover { border-color: rgba(255,255,255,.18); }