/* Base */
:root {
	--bg: #0b0c10;
	--panel: #111318;
	--card: #151823;
	--text: #e7e9ee;
	--muted: #b7bcc8;
	--primary: #5b8cff;
	--primary-600: #3f6cf2;
	--accent: #4bd3c9;
	--border: #232634;
	--shadow: 0 6px 30px rgba(0,0,0,.25);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
	margin: 0;
	font-family: "Noto Sans SC", system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
	background: linear-gradient(180deg, #0b0c10 0%, #0d1017 100%);
	color: var(--text);
	line-height: 1.6;
}
.container {
	width: 100%;
	max-width: 1120px;
	margin: 0 auto;
	padding: 0 20px;
}

/* Header */
.site-header {
	position: sticky;
	top: 0;
	z-index: 50;
	backdrop-filter: blur(10px);
	background: rgba(11,12,16,.6);
	border-bottom: 1px solid var(--border);
}
.header-inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	height: 64px;
}
.brand {
	font-weight: 700;
	color: var(--text);
	text-decoration: none;
	font-size: 18px;
	letter-spacing: .5px;
}
.nav-toggle {
	display: none;
	background: none;
	border: 1px solid var(--border);
	color: var(--text);
	padding: 6px 10px;
	border-radius: 8px;
}
.site-nav ul {
	display: flex;
	gap: 18px;
	list-style: none;
	margin: 0;
	padding: 0;
}
.site-nav a {
	color: var(--muted);
	text-decoration: none;
	padding: 8px 10px;
	border-radius: 8px;
	transition: color .2s ease, background .2s ease;
}
.site-nav a:hover, .site-nav a:focus {
	color: var(--text);
	background: rgba(255,255,255,.04);
}

/* Hero */
.hero {
	position: relative;
	padding: 96px 0 72px;
	overflow: hidden;
	border-bottom: 1px solid var(--border);
}
.hero-inner {
	text-align: center;
	position: relative;
	z-index: 1;
}
.hero h1 {
	margin: 0 0 14px;
	font-size: clamp(28px, 4vw, 42px);
	line-height: 1.2;
}
.hero p {
	margin: 0 auto 24px;
	max-width: 720px;
	color: var(--muted);
}
.hero-actions {
	display: inline-flex;
	gap: 12px;
}
.btn {
	display: inline-block;
	padding: 12px 18px;
	border-radius: 10px;
	text-decoration: none;
	cursor: pointer;
	transition: transform .08s ease, background .2s ease, color .2s ease;
	border: 1px solid var(--border);
	color: var(--text);
}
.btn:active { transform: translateY(1px); }
.btn.primary {
	background: linear-gradient(135deg, var(--primary) 0%, var(--primary-600) 100%);
	border-color: transparent;
	color: #fff;
}
.btn.ghost {
	background: transparent;
	color: var(--text);
}
.hero-bg {
	position: absolute;
	inset: -10% -20% -20% -20%;
	background:
		radial-gradient(40% 30% at 20% 10%, rgba(91,140,255,.25), transparent 60%),
		radial-gradient(30% 25% at 80% 20%, rgba(75,211,201,.18), transparent 60%),
		radial-gradient(35% 25% at 50% 80%, rgba(91,140,255,.15), transparent 60%);
	pointer-events: none;
}

/* Sections */
.section {
	padding: 72px 0;
}
.section.alt {
	background: var(--panel);
}
.section-header {
	text-align: center;
	margin-bottom: 28px;
}
.section-header h2 {
	margin: 0 0 6px;
	font-size: 28px;
}
.section-subtitle {
	color: var(--muted);
	margin: 0;
}

.grid.two {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 28px;
}
.grid.three {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 20px;
}

.stats {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 12px;
	margin: 26px 0 0;
	padding: 0;
	list-style: none;
}
.stats li {
	display: grid;
	place-items: center;
	background: var(--panel);
	border: 1px solid var(--border);
	padding: 16px;
	border-radius: 12px;
}
.stats strong {
	font-size: 22px;
}
.stats span {
	color: var(--muted);
	font-size: 13px;
}

.cards .card {
	background: var(--card);
	border: 1px solid var(--border);
	border-radius: 14px;
	padding: 18px;
	box-shadow: var(--shadow);
}
.cards .card h3 {
	margin-top: 0;
	margin-bottom: 8px;
	font-size: 18px;
}
.cards .card p {
	margin: 0;
	color: var(--muted);
}

/* News */
.news-list {
	display: grid;
	gap: 16px;
	list-style: none;
	margin: 0;
	padding: 0;
}
.news-list li {
	display: grid;
	grid-template-columns: 100px 1fr;
	gap: 16px;
	align-items: start;
	background: var(--panel);
	border: 1px solid var(--border);
	border-radius: 14px;
	padding: 16px;
}
.news-list time {
	display: inline-block;
	background: rgba(91,140,255,.15);
	color: #cfe0ff;
	border: 1px solid rgba(91,140,255,.35);
	border-radius: 10px;
	padding: 10px 12px;
	font-weight: 600;
	text-align: center;
}
.news-list h3 {
	margin: 0 0 6px;
	font-size: 18px;
}
.news-list p {
	margin: 0;
	color: var(--muted);
}

/* Contact */
.contact-block {
	background: var(--card);
	border: 1px solid var(--border);
	border-radius: 14px;
	padding: 16px;
}
.contact-form {
	margin-top: 20px;
	background: var(--panel);
	border: 1px solid var(--border);
	border-radius: 14px;
	padding: 16px;
}
.form-row {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 12px;
	margin-bottom: 12px;
}
input, textarea {
	width: 100%;
	background: #0f1320;
	border: 1px solid var(--border);
	color: var(--text);
	border-radius: 10px;
	padding: 10px 12px;
	font: inherit;
	outline: none;
}
input::placeholder, textarea::placeholder { color: #7e8698; }
input:focus, textarea:focus {
	border-color: rgba(91,140,255,.6);
	box-shadow: 0 0 0 3px rgba(91,140,255,.2);
}
textarea { resize: vertical; }

/* Footer */
.site-footer {
	border-top: 1px solid var(--border);
	background: #0b0c10;
}
.footer-inner {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 20px;
	padding: 32px 0 10px;
}
.footer-brand p { color: var(--muted); margin: 8px 0 0; }
.footer-nav {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 20px;
}
.footer-nav h4 { margin: 0 0 10px; font-size: 14px; color: #dfe3ec; }
.footer-nav ul { list-style: none; margin: 0; padding: 0; }
.footer-nav a { color: var(--muted); text-decoration: none; }
.footer-nav a:hover { color: var(--text); }
.icp {
	text-align: center;
	padding: 10px 0 24px;
	color: var(--muted);
	font-size: 13px;
}

/* Responsive */
@media (max-width: 920px) {
	.grid.two { grid-template-columns: 1fr; }
	.grid.three { grid-template-columns: 1fr 1fr; }
	.stats { grid-template-columns: 1fr 1fr; }
	.news-list li { grid-template-columns: 1fr; }
	.form-row { grid-template-columns: 1fr; }
	.footer-inner { grid-template-columns: 1fr; }
	.footer-nav { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
	.nav-toggle { display: inline-block; }
	.site-nav { display: none; position: absolute; top: 64px; right: 20px; left: 20px; background: var(--panel); border: 1px solid var(--border); border-radius: 12px; }
	.site-nav.open { display: block; }
	.site-nav ul { display: grid; gap: 0; }
	.site-nav a { display: block; padding: 12px 14px; border-bottom: 1px solid var(--border); }
	.site-nav li:last-child a { border-bottom: 0; }
	.grid.three { grid-template-columns: 1fr; }
	.footer-nav { grid-template-columns: 1fr; }
}