/* OpenCompute Labs — dark web3 theme */
:root {
  --bg: #07090d;
  --bg-elev: #0c0f16;
  --panel: rgba(255, 255, 255, 0.03);
  --panel-hover: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --violet: #7c5cff;
  --cyan: #22d3ee;
  --pink: #f472b6;
  --text: #e5e7eb;
  --muted: #8b93a7;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --radius: 12px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

/* 键盘焦点可见（可访问性） */
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; border-radius: 4px; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 44px 44px;
}

.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* 导航 */
.nav { position: sticky; top: 0; z-index: 10; background: rgba(7, 9, 13, 0.75); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); font-weight: 700; font-size: 18px; }
.brand-mark { flex-shrink: 0; filter: drop-shadow(0 0 6px rgba(124, 92, 255, 0.5)); }
.brand-accent { color: var(--cyan); }
.nav-links { display: flex; gap: 24px; }
.nav-links a { text-decoration: none; color: var(--muted); font-family: var(--mono); font-size: 13px; letter-spacing: .02em; }
.nav-links a:hover { color: var(--cyan); text-shadow: 0 0 12px rgba(34, 211, 238, .6); }

/* 汉堡菜单按钮（桌面隐藏，移动端显示） */
.nav-toggle {
  display: none; background: none; border: 1px solid var(--border-strong); border-radius: 8px;
  width: 42px; height: 42px; cursor: pointer; flex-direction: column; align-items: center; justify-content: center; gap: 5px;
  transition: border-color .2s;
}
.nav-toggle:hover { border-color: var(--cyan); }
.nav-toggle span { width: 18px; height: 2px; background: var(--text); display: block; transition: transform .2s, opacity .2s; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Hero */
.hero { text-align: center; padding: 96px 0 72px; position: relative; }
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(600px 300px at 25% 0%, rgba(124, 92, 255, 0.18), transparent 70%),
    radial-gradient(600px 300px at 80% 10%, rgba(34, 211, 238, 0.12), transparent 70%);
}
.hero .container { position: relative; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 12px; letter-spacing: .1em;
  color: var(--cyan); border: 1px solid var(--border-strong);
  background: var(--panel); border-radius: 999px; padding: 6px 14px; margin-bottom: 24px;
}
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 8px var(--cyan); animation: pulse 2s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .35; } }

.hero h1 { font-size: 46px; line-height: 1.22; font-weight: 800; letter-spacing: -0.01em; }
.grad {
  background: linear-gradient(92deg, var(--cyan) 0%, var(--violet) 60%, var(--pink) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub { margin: 22px auto 34px; max-width: 620px; color: var(--muted); font-size: 18px; }
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* Hero 状态面板（terminal） */
.hero-panel {
  max-width: 660px; margin: 48px auto 0; text-align: left;
  background: rgba(0, 0, 0, 0.45); border: 1px solid var(--border-strong); border-radius: 10px;
  overflow: hidden; box-shadow: 0 16px 48px rgba(0, 0, 0, .5), 0 0 48px rgba(124, 92, 255, .07);
}
.panel-head { display: flex; align-items: center; gap: 12px; padding: 10px 16px; border-bottom: 1px solid var(--border); font-family: var(--mono); font-size: 12px; color: var(--muted); }
.panel-dots { display: inline-flex; gap: 6px; }
.panel-dots span { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.panel-title { letter-spacing: .05em; }
.panel-tag { margin-left: auto; color: rgba(139, 147, 167, .7); font-size: 12px; }
.panel-body { padding: 16px 20px; font-family: var(--mono); font-size: 13px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px 32px; }
.panel-body p { display: flex; justify-content: space-between; gap: 16px; }
.panel-body .k { color: var(--violet); }
.panel-body .v { color: var(--text); }

.btn { display: inline-block; padding: 12px 28px; border-radius: 999px; font-size: 16px; font-weight: 600; text-decoration: none; transition: transform .15s, box-shadow .15s, background .15s, border-color .15s; }
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: linear-gradient(92deg, var(--violet) 0%, #5b8cff 100%); color: #fff;
  box-shadow: 0 0 0 1px rgba(124, 92, 255, .4), 0 8px 28px rgba(124, 92, 255, .35);
}
.btn-primary:hover { box-shadow: 0 0 0 1px rgba(124, 92, 255, .6), 0 10px 34px rgba(124, 92, 255, .5); }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--border-strong); }
.btn-ghost:hover { border-color: var(--cyan); color: var(--cyan); }

/* Logo marquee */
.logos { padding: 64px 0 32px; border-top: 1px solid var(--border); }
.marquee-label { text-align: center; font-family: var(--mono); font-size: 12px; letter-spacing: .08em; color: var(--muted); margin-bottom: 20px; }
.marquee-label.label-2 { margin-top: 44px; }
.marquee { overflow: hidden; position: relative;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }
.marquee-track { display: flex; width: max-content; animation: scroll-left 32s linear infinite; }
.marquee.reverse .marquee-track { animation-name: scroll-right; }
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-group { display: flex; align-items: center; gap: 56px; padding-right: 56px; }
.marquee-group img { height: 42px; width: auto; opacity: .55; filter: grayscale(1) brightness(1.1); transition: opacity .2s, filter .2s, transform .2s; }
.marquee-group img:hover { opacity: 1; filter: grayscale(0) brightness(1); transform: translateY(-2px); }
.marquee-lg .marquee-group img { width: 150px; height: 48px; object-fit: contain; }
/* 真实品牌 logo：保持原色（不灰度），个别深色 logo 单独处理 */
.marquee-lg .marquee-group img { filter: none; opacity: .9; }
.marquee-lg .marquee-group img.invert { filter: invert(1); }
.marquee-lg .marquee-group img.bright { filter: brightness(2.4) contrast(1.1); }
.marquee-lg .marquee-group img:hover { opacity: 1; transform: translateY(-2px); filter: none; }
.marquee-lg .marquee-group img.invert:hover { filter: invert(1); }
.marquee-lg .marquee-group img.bright:hover { filter: brightness(2.6) contrast(1.1); }
/* 未找到 logo 的品牌：文字占位（统一显示框，与图片 logo 对齐） */
.marquee-lg .logo-text { display: inline-flex; align-items: center; justify-content: center; width: 150px; height: 48px; font-family: var(--mono); font-size: 21px; font-weight: 700; color: #aab2c5; letter-spacing: .02em; white-space: nowrap; text-align: center; opacity: .85; }
/* Helsinki Incubators 文字 logo（复刻品牌两行字标：上行 Helsinki 蓝 + 下行 Incubators，深色背景用白对应黑） */
.marquee-lg .logo-text.hi-logo { flex-direction: column; align-items: center; justify-content: center; line-height: 1.05; opacity: 1; }
.hi-logo .hi-name { color: #5b9dff; }
.hi-logo .hi-word { color: #f5f7fa; }
@keyframes scroll-left { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@keyframes scroll-right { from { transform: translateX(-50%); } to { transform: translateX(0); } }

/* Stats */
.stats { padding: 48px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: rgba(0, 0, 0, 0.25); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.stat { display: flex; flex-direction: column; gap: 4px; }
.stat-num {
  font-family: var(--mono); font-size: 38px; font-weight: 700;
  background: linear-gradient(92deg, var(--cyan), var(--violet));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  text-shadow: 0 0 24px rgba(124, 92, 255, .35);
}
.stat-label { color: var(--muted); font-size: 13px; font-family: var(--mono); }

/* 通用区块标题 */
.section-tag { font-family: var(--mono); font-size: 12px; letter-spacing: .12em; color: var(--cyan); margin-bottom: 10px; text-align: center; }
.sectors h2, .portfolio h2, .news h2 { text-align: center; font-size: 32px; margin-bottom: 8px; }
.section-sub { text-align: center; color: var(--muted); margin-bottom: 44px; }

/* Sectors */
.sectors { padding: 80px 0; }
.sectors-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.sector-card {
  position: relative; background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px 20px 20px; text-align: center; transition: border-color .2s, background .2s, transform .2s, box-shadow .2s;
}
.sector-card:hover { background: var(--panel-hover); border-color: rgba(124, 92, 255, .5); transform: translateY(-2px); box-shadow: 0 0 30px rgba(124, 92, 255, .12); }
.card-index { position: absolute; top: 14px; left: 16px; font-family: var(--mono); font-size: 12px; letter-spacing: .1em; color: rgba(139, 147, 167, .55); }
.sector-icon { width: 30px; height: 30px; color: var(--cyan); margin-bottom: 14px; filter: drop-shadow(0 0 8px rgba(34, 211, 238, .5)); }
.sector-card h3 { font-size: 16px; margin-bottom: 8px; }
.sector-card p { color: var(--muted); font-size: 14px; }

/* 卡片标签 chips */
.card-tags { display: flex; gap: 6px; justify-content: center; flex-wrap: wrap; margin-top: 14px; }
.card-tags span { font-family: var(--mono); font-size: 11px; letter-spacing: .03em; color: var(--muted); border: 1px solid var(--border); border-radius: 999px; padding: 3px 9px; }

/* Program */
.program { padding: 80px 0; position: relative; border-top: 1px solid var(--border); overflow: hidden; }
.program::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(500px 260px at 15% 50%, rgba(124, 92, 255, .14), transparent 70%),
    radial-gradient(500px 260px at 85% 50%, rgba(34, 211, 238, .1), transparent 70%);
}
.program-box { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; align-items: center; position: relative; }
.program-copy .section-tag { text-align: left; }
.program-copy h2 { font-size: 30px; margin-bottom: 20px; }
.program-list { list-style: none; margin-bottom: 28px; }
.program-list li { padding: 8px 0 8px 30px; position: relative; color: var(--muted); }
.program-list li strong { color: var(--text); font-family: var(--mono); }
.program-list li::before { content: "▸"; position: absolute; left: 0; color: var(--cyan); font-weight: 700; }

/* Timeline */
.timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-bottom: 28px; }
.tl-item { background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 10px 12px; text-align: left; transition: border-color .2s; }
.tl-item:hover { border-color: rgba(34, 211, 238, .45); }
.tl-item span { display: block; font-family: var(--mono); font-size: 12px; color: var(--cyan); margin-bottom: 4px; }
.tl-item b { font-size: 12.5px; font-weight: 600; line-height: 1.35; }

.program-side { display: flex; flex-direction: column; gap: 16px; }
.program-note {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px; transition: border-color .2s, box-shadow .2s;
}
.program-note:hover { border-color: rgba(34, 211, 238, .45); box-shadow: 0 0 26px rgba(34, 211, 238, .1); }
.note-kicker { font-family: var(--mono); font-size: 12px; letter-spacing: .1em; color: var(--cyan); text-transform: uppercase; }
.note-main { font-size: 21px; font-weight: 700; margin: 4px 0; font-family: var(--mono); }
.note-sub { font-size: 14px; color: var(--muted); }

/* Portfolio */
.portfolio { padding: 80px 0; border-top: 1px solid var(--border); background: rgba(0, 0, 0, 0.18); }
.portfolio-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.pf-card {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; text-align: center; transition: border-color .2s, background .2s, transform .2s, box-shadow .2s;
}
.pf-card:hover { background: var(--panel-hover); border-color: rgba(124, 92, 255, .5); transform: translateY(-2px); box-shadow: 0 0 30px rgba(124, 92, 255, .12); }
.pf-card img { height: 34px; width: auto; margin-bottom: 12px; }
.pf-card h3 { font-size: 16px; margin-bottom: 6px; }
.pf-card p { color: var(--muted); font-size: 14px; margin-bottom: 0; }
.pf-card .card-tags { margin-bottom: 14px; }
.pf-round { display: inline-block; font-family: var(--mono); font-size: 12px; letter-spacing: .04em; color: var(--cyan); border: 1px solid rgba(34, 211, 238, .35); border-radius: 999px; padding: 3px 12px; }

/* More 按钮 */
.pf-more { margin-top: 16px; background: none; border: 1px solid var(--border-strong); color: var(--cyan); font-family: var(--mono); font-size: 12px; letter-spacing: .04em; border-radius: 999px; padding: 6px 16px; cursor: pointer; transition: border-color .2s, color .2s, box-shadow .2s; }
.pf-more:hover { border-color: var(--cyan); color: #fff; box-shadow: 0 0 14px rgba(34, 211, 238, .25); }

/* Portfolio 弹窗 */
.pf-modal { position: fixed; inset: 0; z-index: 100; display: none; align-items: center; justify-content: center; padding: 24px; }
.pf-modal.open { display: flex; }
.pf-overlay { position: absolute; inset: 0; background: rgba(3, 4, 8, .78); backdrop-filter: blur(5px); }
.pf-dialog {
  position: relative; background: var(--bg-elev); border: 1px solid var(--border-strong); border-radius: 16px;
  padding: 32px; max-width: 420px; width: 100%; max-height: 85vh; overflow-y: auto;
  box-shadow: 0 0 0 1px rgba(124, 92, 255, .25), 0 24px 60px rgba(0, 0, 0, .6), 0 0 60px rgba(124, 92, 255, .1);
  animation: pf-pop .18s ease-out;
}
@keyframes pf-pop { from { transform: translateY(10px) scale(.98); opacity: 0; } to { transform: none; opacity: 1; } }
.pf-close { position: absolute; top: 12px; right: 14px; background: none; border: none; color: var(--muted); font-size: 18px; cursor: pointer; padding: 4px; line-height: 1; }
.pf-close:hover { color: var(--text); }
.pf-modal-logo { height: 40px; width: auto; margin-bottom: 14px; }
.pf-dialog h3 { font-size: 22px; margin-bottom: 4px; }
.pf-modal-tag { font-family: var(--mono); font-size: 12px; letter-spacing: .1em; color: var(--cyan); margin-bottom: 14px; }
.pf-modal-body { color: var(--muted); font-size: 15px; margin-bottom: 18px; }
.pf-modal-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.pf-modal-meta span { font-family: var(--mono); font-size: 11px; letter-spacing: .03em; color: var(--muted); border: 1px solid var(--border); border-radius: 999px; padding: 3px 10px; }
.pf-modal-link { display: inline-block; }
body.no-scroll { overflow: hidden; }

/* News */
.news { padding: 80px 0; }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.news-card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; display: flex; flex-direction: column; transition: border-color .2s, box-shadow .2s; }
.news-card:hover { border-color: rgba(124, 92, 255, .45); box-shadow: 0 0 26px rgba(124, 92, 255, .1); }
.news-date { font-family: var(--mono); font-size: 12px; letter-spacing: .1em; color: var(--violet); margin-bottom: 10px; }
.news-card h3 { font-size: 16px; margin-bottom: 8px; }
.news-card p:not(.news-date) { color: var(--muted); font-size: 14px; }
.news-link { margin-top: auto; padding-top: 14px; font-family: var(--mono); font-size: 12px; color: var(--cyan); text-decoration: none; }
.news-link:hover { text-shadow: 0 0 10px rgba(34, 211, 238, .6); }

/* CTA */
.cta { padding: 88px 0; text-align: center; position: relative; border-top: 1px solid var(--border); overflow: hidden; }
.cta::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(560px 300px at 50% 0%, rgba(124, 92, 255, .2), transparent 70%),
    radial-gradient(400px 200px at 20% 100%, rgba(34, 211, 238, .1), transparent 70%);
}
.cta .container { position: relative; }
.cta .section-tag.tag-light { color: var(--pink); }
.cta h2 { font-size: 32px; margin-bottom: 12px; }
.cta p { margin-bottom: 28px; color: var(--muted); }
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 26px; }
.cta .btn-ghost { border-color: var(--border-strong); }
.cta .btn-ghost:hover { border-color: var(--cyan); color: var(--cyan); }
.cta-meta { font-family: var(--mono); font-size: 13px; letter-spacing: .06em; color: var(--muted); }

/* Legal 页面（Privacy / Terms） */
.legal { padding: 64px 0 88px; }
.legal-inner { max-width: 760px; margin: 0 auto; }
.legal .section-tag { text-align: left; }
.legal h1 { font-size: 34px; margin: 8px 0 6px; }
.legal-updated { font-family: var(--mono); font-size: 13px; color: var(--muted); margin-bottom: 28px; }
.legal-notice { border: 1px solid rgba(244, 63, 94, .5); background: rgba(244, 63, 94, .08); color: #fda4af; border-radius: 8px; padding: 12px 16px; font-family: var(--mono); font-size: 13px; margin-bottom: 28px; }
.legal h2 { font-size: 20px; margin: 32px 0 10px; }
.legal p, .legal li { color: var(--muted); font-size: 15px; margin-bottom: 10px; }
.legal ul { padding-left: 22px; margin-bottom: 14px; }
.legal a { color: var(--cyan); }

/* 页脚 */
.footer { position: relative; padding: 56px 0 30px; color: var(--muted); border-top: 1px solid var(--border); background: rgba(0, 0, 0, 0.3); }
.footer::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(124, 92, 255, .7), rgba(34, 211, 238, .7), transparent); }
.footer-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 48px; flex-wrap: wrap; margin-bottom: 44px; }
.footer-brand { max-width: 400px; }
.footer-brand .brand { font-size: 20px; margin-bottom: 14px; }
.footer-tagline { font-size: 15px; line-height: 1.75; color: var(--muted); }
.footer-links { display: flex; gap: 72px; }
.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-head { font-family: var(--mono); font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--text); margin-bottom: 6px; }
.footer-col a { color: var(--muted); text-decoration: none; font-size: 14px; transition: color .2s; }
.footer-col a:hover { color: var(--cyan); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; border-top: 1px solid var(--border); padding-top: 22px; font-family: var(--mono); font-size: 12.5px; color: var(--muted); }
.footer-bottom a { color: var(--cyan); text-decoration: none; }
.footer-bottom a:hover { text-decoration: underline; }
.footer-bottom:only-child { justify-content: center; text-align: center; }

/* 响应式 */
@media (max-width: 900px) {
  .sectors-grid { grid-template-columns: repeat(2, 1fr); }
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 28px; }
  .program-box { grid-template-columns: 1fr; }
  .hero h1 { font-size: 34px; }
}

@media (max-width: 600px) {
  .nav-links {
    display: none; position: absolute; top: 64px; left: 0; right: 0;
    background: rgba(7, 9, 13, 0.97); border-bottom: 1px solid var(--border);
    flex-direction: column; gap: 4px; padding: 12px 24px;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 10px 0; font-size: 14px; }
  .nav-toggle { display: flex; }
  .sectors-grid, .portfolio-grid { grid-template-columns: 1fr; }
  .timeline { grid-template-columns: repeat(2, 1fr); }
  .panel-body { grid-template-columns: 1fr; }
  .marquee-group { gap: 36px; padding-right: 36px; }
  .marquee-group img { height: 32px; width: auto; }
  .marquee-lg .marquee-group img { width: 110px; height: 34px; }
  .marquee-lg .logo-text { width: 110px; height: 34px; font-size: 15px; }
  .marquee-lg .logo-text.hi-logo { font-size: 15px; }
  .footer-top { flex-direction: column; gap: 32px; }
  .footer-links { gap: 48px; }
}