/* 药云 · 冷蓝青商务投屏页 */
:root {
  --bg: #0a1218;
  --bg-elev: #0f1c26;
  --line: rgba(120, 190, 210, 0.22);
  --text: #e8f4f8;
  --muted: #8aa8b5;
  --accent: #3ec4d4;
  --accent-soft: rgba(62, 196, 212, 0.12);
  --warn: #e07070;
  --footer-h: 36px;
}

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

html {
  scroll-snap-type: y mandatory;
  scroll-behavior: smooth;
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    "Noto Sans SC", system-ui, sans-serif;
  font-size: clamp(15px, 1.35vw, 22px);
  -webkit-font-smoothing: antialiased;
}

body { background: var(--bg); }

.page-badge {
  position: fixed;
  top: 18px;
  right: 22px;
  z-index: 50;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 2px;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--muted);
  background: rgba(10, 18, 24, 0.75);
}

.global-footer {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 50;
  height: var(--footer-h);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--muted);
  background: rgba(10, 18, 24, 0.92);
  border-top: 1px solid var(--line);
}

.screen {
  min-height: 100vh;
  min-height: 100dvh;
  scroll-snap-align: start;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 56px 6vw calc(var(--footer-h) + 40px);
  border-bottom: 1px solid var(--line);
}

.screen-inner {
  width: min(1180px, 100%);
}

.cover {
  text-align: center;
  background:
    radial-gradient(ellipse 70% 50% at 50% 40%, rgba(62, 196, 212, 0.08), transparent 70%),
    var(--bg);
}

.cover-inner { width: min(900px, 100%); }

.logo {
  height: clamp(48px, 6vw, 72px);
  width: auto;
  margin-bottom: 2.2rem;
  display: inline-block;
}

.cover h1 {
  font-size: clamp(2.2rem, 4.6vw, 3.6rem);
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1.25;
  margin-bottom: 1rem;
}

.subtitle {
  font-size: clamp(1.05rem, 1.8vw, 1.45rem);
  color: var(--muted);
  letter-spacing: 0.06em;
  margin-bottom: 2rem;
}

.meta {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 1.1rem;
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.95rem;
  letter-spacing: 0.1em;
}
.meta .dot { opacity: 0.5; }

.eyebrow {
  color: var(--accent);
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  margin-bottom: 0.75rem;
  text-transform: none;
}

h2 {
  font-size: clamp(1.8rem, 3.2vw, 2.6rem);
  font-weight: 600;
  letter-spacing: 0.03em;
  margin-bottom: 1.1rem;
  line-height: 1.3;
}
h2 .thin { font-weight: 400; color: var(--muted); font-size: 0.75em; }

.relation {
  color: var(--muted);
  font-size: 0.95rem;
  margin-bottom: 1.4rem;
  padding-bottom: 1.2rem;
  border-bottom: 1px solid var(--line);
}
.relation .sep { margin: 0 0.5rem; opacity: 0.4; }

.lead {
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  line-height: 1.75;
  color: var(--text);
  margin-bottom: 2rem;
  max-width: 52em;
}
.lead.tight { margin-bottom: 1.4rem; }
.lead strong { color: #fff; font-weight: 600; }

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.stat {
  background: var(--bg-elev);
  padding: 1.4rem 1.1rem;
  text-align: center;
}
.stat .num {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.02em;
  line-height: 1.2;
}
.stat .unit { font-size: 0.55em; margin-left: 0.1em; }
.stat .label {
  margin-top: 0.45rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.cards {
  display: grid;
  gap: 1rem;
  margin-top: 0.5rem;
}
.cards.four { grid-template-columns: repeat(2, 1fr); }
.cards.two { grid-template-columns: repeat(2, 1fr); }
.cards.three { grid-template-columns: repeat(3, 1fr); }

.card {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  padding: 1.4rem 1.5rem;
}
.card-n {
  color: var(--accent);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  margin-bottom: 0.55rem;
}
.card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.65rem;
  letter-spacing: 0.02em;
}
.card p, .card li {
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.65;
}
.card ul { list-style: none; }
.card li + li { margin-top: 0.4rem; }
.card li::before {
  content: "—";
  color: var(--accent);
  margin-right: 0.5rem;
}
.card strong { color: var(--text); }

.two-col {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2rem;
  align-items: start;
}

.label-row {
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin: 0.8rem 0 0.7rem;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-bottom: 0.8rem;
}
.tags span {
  padding: 0.45rem 0.95rem;
  border: 1px solid var(--line);
  background: var(--accent-soft);
  font-size: 1.05rem;
  letter-spacing: 0.06em;
}

.panel {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  padding: 1.3rem 1.4rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.98rem;
}
table th, table td {
  text-align: left;
  padding: 0.55rem 0.4rem;
  border-bottom: 1px solid var(--line);
}
table th {
  color: var(--muted);
  font-weight: 500;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
}
table td:last-child, table th:last-child { text-align: right; }
table.tiers td:first-child {
  color: var(--accent);
  font-weight: 600;
  width: 40%;
}

.kpi-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.4rem;
}
.kpi {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  padding: 1.3rem 1.5rem;
}
.kpi-label {
  color: var(--muted);
  font-size: 0.88rem;
  letter-spacing: 0.06em;
  margin-bottom: 0.45rem;
}
.kpi-num {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.02em;
  line-height: 1.15;
}
.kpi-num .unit {
  font-size: 0.4em;
  margin-left: 0.15em;
  color: var(--muted);
  font-weight: 500;
}

table.cost { margin-bottom: 1rem; }
table.cost tbody tr:hover { background: var(--accent-soft); }

.narrative {
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.65;
  margin-top: 0.4rem;
}
.narrative strong { color: var(--text); }

.warn {
  margin-top: 1rem;
  color: var(--warn);
  font-size: 0.88rem;
  letter-spacing: 0.04em;
}

.note {
  color: var(--muted);
  font-size: 0.82rem;
  margin-top: 0.6rem;
  line-height: 1.5;
}

.materials {
  columns: 1;
  margin: 0.5rem 0 1.5rem;
  padding-left: 1.4rem;
  font-size: 1.05rem;
  line-height: 2;
  color: var(--text);
}
.materials li::marker { color: var(--accent); }

.closing {
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.95rem;
  letter-spacing: 0.04em;
}

@media (max-width: 900px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .cards.four, .cards.two, .cards.three, .two-col, .kpi-row {
    grid-template-columns: 1fr;
  }
}

@media (min-aspect-ratio: 16/10) {
  .screen { padding-top: 48px; padding-bottom: calc(var(--footer-h) + 28px); }
}