:root {
  color-scheme: dark;
  --bg: #07101f;
  --surface: rgba(17, 31, 52, 0.72);
  --surface-strong: #12213a;
  --line: rgba(164, 190, 226, 0.16);
  --text: #f6f9ff;
  --muted: #9badc5;
  --cyan: #69e6dc;
  --blue: #5a8dff;
  --purple: #a27dff;
  --success: #5cf2a7;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 0%, rgba(38, 93, 177, 0.24), transparent 36rem),
    radial-gradient(circle at 100% 32%, rgba(106, 59, 188, 0.18), transparent 34rem),
    var(--bg);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  line-height: 1.65;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.22;
  background-image: linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to bottom, black, transparent 72%);
}

.page-shell { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 82px;
  border-bottom: 1px solid var(--line);
}

.brand { display: flex; align-items: center; gap: 12px; color: var(--text); text-decoration: none; font-weight: 760; letter-spacing: .02em; }
.brand-mark { display: grid; place-items: center; width: 38px; height: 38px; border: 1px solid rgba(105,230,220,.7); border-radius: 12px; color: var(--cyan); background: rgba(105,230,220,.08); font-size: 14px; }
.live-pill { display: flex; align-items: center; gap: 8px; padding: 8px 13px; border: 1px solid rgba(92,242,167,.25); border-radius: 999px; color: #baf8d8; background: rgba(92,242,167,.07); font-size: 13px; }
.live-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--success); box-shadow: 0 0 14px var(--success); animation: pulse 1.8s infinite; }

.hero { display: grid; grid-template-columns: 1.02fr .98fr; align-items: center; gap: 64px; min-height: 700px; padding: 76px 0; }
.eyebrow { margin: 0 0 14px; color: var(--cyan); font-size: 12px; font-weight: 800; letter-spacing: .21em; }
h1 { margin: 0; font-size: clamp(48px, 6.2vw, 80px); line-height: 1.08; letter-spacing: -.052em; }
h1 span { color: transparent; background: linear-gradient(92deg, var(--cyan), #8eb4ff 53%, #c39cff); background-clip: text; -webkit-background-clip: text; }
.hero-text { max-width: 600px; margin: 28px 0 30px; color: var(--muted); font-size: 17px; }
.report-state { display: flex; align-items: center; gap: 14px; width: fit-content; max-width: 100%; padding: 13px 18px 13px 13px; border: 1px solid var(--line); border-radius: 16px; background: rgba(15,29,49,.76); box-shadow: 0 18px 46px rgba(0,0,0,.22); }
.state-icon { display: grid; place-items: center; flex: 0 0 40px; width: 40px; height: 40px; border-radius: 12px; color: #a6bdd9; background: rgba(143,174,213,.11); font-weight: 900; }
.state-icon.confirmed { color: #071a12; background: var(--success); box-shadow: 0 0 22px rgba(92,242,167,.34); }
.report-state strong, .report-state small { display: block; }
.report-state strong { font-size: 14px; }
.report-state small { color: var(--muted); font-size: 12px; }

.hero-visual { position: relative; min-height: 510px; display: grid; place-items: center; }
.hero-visual img { position: relative; z-index: 1; width: min(100%, 560px); height: auto; filter: drop-shadow(0 38px 58px rgba(0,0,0,.36)); }
.visual-glow { position: absolute; width: 86%; aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle, rgba(66,161,217,.22), rgba(83,62,186,.08) 46%, transparent 70%); filter: blur(8px); }
.floating-card { position: absolute; z-index: 2; display: flex; align-items: center; gap: 9px; padding: 10px 14px; border: 1px solid rgba(179,210,246,.2); border-radius: 13px; background: rgba(10,22,40,.85); box-shadow: 0 16px 40px rgba(0,0,0,.3); backdrop-filter: blur(12px); font-size: 12px; color: var(--muted); }
.floating-card b { color: var(--text); }
.raw-card { top: 20%; left: 0; }
.pv-card { right: -2%; bottom: 19%; }

.explain-section { padding: 104px 0; border-top: 1px solid var(--line); }
.section-heading { display: flex; align-items: end; justify-content: space-between; margin-bottom: 34px; }
h2 { margin: 0; font-size: clamp(34px, 4vw, 52px); line-height: 1.16; letter-spacing: -.035em; }
.metric-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.metric-card { min-height: 250px; padding: 28px; border: 1px solid var(--line); border-radius: 24px; background: linear-gradient(150deg, rgba(22,40,67,.72), rgba(11,23,40,.58)); }
.metric-card.accent-card { border-color: rgba(105,230,220,.35); background: linear-gradient(145deg, rgba(26,66,80,.67), rgba(16,33,57,.76)); }
.metric-number { display: inline-block; margin-bottom: 34px; color: var(--cyan); font: 800 12px/1 monospace; letter-spacing: .1em; }
.metric-card h3 { margin: 0 0 12px; font-size: 20px; }
.metric-card p { margin: 0; color: var(--muted); font-size: 14px; }

.media-section { display: grid; grid-template-columns: .84fr 1.16fr; gap: 72px; align-items: center; padding: 104px 0 120px; border-top: 1px solid var(--line); }
.media-copy > p:not(.eyebrow) { margin: 22px 0; color: var(--muted); }
.feature-list { list-style: none; margin: 24px 0 0; padding: 0; color: #c8d7e9; }
.feature-list li { margin: 11px 0; }
.feature-list span { display: inline-grid; place-items: center; width: 22px; height: 22px; margin-right: 9px; border-radius: 7px; color: var(--success); background: rgba(92,242,167,.1); }
.video-frame { overflow: hidden; border: 1px solid rgba(176,205,240,.2); border-radius: 26px; background: #050b14; box-shadow: 0 30px 76px rgba(0,0,0,.34); }
.video-frame video { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; background: #050b14; }
.video-caption { display: flex; align-items: center; gap: 8px; padding: 13px 17px; color: var(--muted); font-size: 12px; border-top: 1px solid var(--line); }
.video-caption span { width: 7px; height: 7px; border-radius: 50%; background: var(--blue); }
footer { display: flex; justify-content: space-between; padding: 24px 0 36px; border-top: 1px solid var(--line); color: #70849f; font-size: 12px; }

@keyframes pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: .5; transform: scale(.82); } }

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; gap: 20px; min-height: auto; padding: 66px 0 48px; }
  .hero-visual { min-height: 390px; }
  .hero-visual img { width: min(92%, 520px); }
  .raw-card { left: 2%; }
  .pv-card { right: 2%; }
  .metric-grid { grid-template-columns: 1fr; }
  .metric-card { min-height: auto; }
  .media-section { grid-template-columns: 1fr; gap: 38px; }
}

@media (max-width: 520px) {
  .page-shell { width: min(100% - 28px, 1180px); }
  .site-header { min-height: 70px; }
  .brand > span:last-child { display: none; }
  .hero { padding-top: 52px; }
  h1 { font-size: clamp(43px, 13vw, 60px); }
  .hero-text { font-size: 15px; }
  .report-state { width: 100%; }
  .hero-visual { min-height: 320px; }
  .floating-card { padding: 8px 10px; }
  .explain-section, .media-section { padding: 76px 0; }
  .section-heading { display: block; }
  .metric-card { padding: 24px; border-radius: 20px; }
  footer { gap: 10px; flex-direction: column; }
}