:root {
  --bg: #0b1020;
  --bg-soft: #121a30;
  --panel: #161f38;
  --panel-2: #1c2742;
  --border: #2a3656;
  --text: #eaf0ff;
  --muted: #9fb0d4;
  --faint: #6f80a8;
  --accent: #5b8cff;
  --accent-2: #38d39f;
  --up: #f6a73b;
  --mid: #5b8cff;
  --down: #38d39f;
  --danger: #ff6b6b;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  font-family: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI",
    system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}
html,
body {
  margin: 0;
  padding: 0;
}
body {
  background: radial-gradient(1200px 600px at 80% -10%, #1a2b4d, transparent),
    radial-gradient(1000px 500px at 0% 0%, #15213d 0%, transparent 60%), var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
.wrap {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 20px;
}
.hidden {
  display: none !important;
}

/* Topbar */
.topbar {
  border-bottom: 1px solid var(--border);
  background: rgba(11, 16, 32, 0.8);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  gap: 12px;
  flex-wrap: wrap;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
}
.brand-mark {
  font-size: 20px;
}
.brand-sub {
  color: var(--faint);
  font-size: 13px;
}

/* Hero */
.hero {
  padding: 48px 0 8px;
}
.hero h1 {
  font-size: 34px;
  line-height: 1.25;
  margin: 0 0 14px;
  letter-spacing: -0.5px;
}
.lead {
  color: var(--muted);
  font-size: 16px;
  max-width: 760px;
  margin: 0 0 24px;
}
.lead b {
  color: var(--text);
  font-weight: 600;
}

.searchbar {
  display: flex;
  gap: 10px;
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 8px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.searchbar input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-size: 16px;
  padding: 10px 12px;
}
.searchbar input::placeholder {
  color: var(--faint);
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), #7aa2ff);
  color: #07122b;
  border: none;
  font-weight: 700;
  font-size: 15px;
  padding: 0 22px;
  border-radius: 10px;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 0.06s ease, filter 0.15s ease;
}
.btn-primary:hover {
  filter: brightness(1.05);
}
.btn-primary:active {
  transform: translateY(1px);
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 10px;
}
.chip {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 6px 13px;
  border-radius: 999px;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.15s ease;
}
.chip:hover {
  border-color: var(--accent);
  color: var(--text);
}
.chip .chip-tag {
  color: var(--faint);
  font-size: 11px;
  margin-left: 6px;
}
.disclaimer-top {
  color: var(--faint);
  font-size: 12.5px;
  margin-top: 14px;
}
.disclaimer-top b {
  color: var(--down);
}

/* How section */
.empty {
  padding: 36px 0 60px;
}
.empty h2 {
  font-size: 20px;
  margin: 0 0 18px;
  color: var(--muted);
  font-weight: 600;
}
.how {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.how-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.how-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--panel-2);
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 10px;
}
.how-card h3 {
  margin: 0 0 6px;
  font-size: 16px;
}
.how-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

/* Result */
.result {
  padding: 22px 0 50px;
}
.result-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}
.result-title h2 {
  margin: 0 0 4px;
  font-size: 26px;
}
.badge {
  display: inline-block;
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 999px;
  font-weight: 600;
}
.badge.curated {
  background: rgba(56, 211, 159, 0.15);
  color: var(--down);
  border: 1px solid rgba(56, 211, 159, 0.35);
}
.badge.scaffold {
  background: rgba(246, 167, 59, 0.15);
  color: var(--up);
  border: 1px solid rgba(246, 167, 59, 0.35);
}
.result-actions {
  display: flex;
  gap: 8px;
}
.btn-ghost {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 9px 16px;
  border-radius: 10px;
  font-size: 14px;
  cursor: pointer;
  transition: border-color 0.15s ease;
}
.btn-ghost:hover {
  border-color: var(--accent);
}

.thesis {
  background: linear-gradient(135deg, var(--panel), var(--panel-2));
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin-bottom: 26px;
  color: var(--text);
  font-size: 15.5px;
}
.thesis .thesis-label {
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  display: block;
  margin-bottom: 6px;
}

.section-label {
  font-size: 13px;
  letter-spacing: 1px;
  color: var(--faint);
  text-transform: uppercase;
  margin: 30px 0 14px;
  font-weight: 700;
}

/* Chain map */
.chain {
  display: grid;
  gap: 14px;
}
.seg {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  position: relative;
}
.seg-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
}
.role-pill {
  font-size: 12px;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 6px;
  color: #08122b;
}
.role-上游 {
  background: var(--up);
}
.role-中游 {
  background: var(--mid);
}
.role-下游 {
  background: var(--down);
}
.seg-name {
  font-size: 17px;
  font-weight: 700;
}
.seg-desc {
  color: var(--muted);
  font-size: 14px;
  margin: 0 0 12px;
}
.companies {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.company {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 7px 11px;
  font-size: 13.5px;
}
.company b {
  font-weight: 600;
}
.company .c-note {
  color: var(--faint);
  font-size: 12px;
  margin-left: 6px;
}
.questions {
  margin: 10px 0 0;
  padding-left: 0;
  list-style: none;
}
.questions li {
  color: var(--muted);
  font-size: 13.5px;
  padding: 4px 0 4px 22px;
  position: relative;
}
.questions li::before {
  content: "☐";
  position: absolute;
  left: 0;
  color: var(--faint);
}

/* grid cards (catalysts / risks / indicators) */
.cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
}
.card .c-top {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 5px;
}
.tag-pill {
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 6px;
  background: var(--panel-2);
  color: var(--accent);
  border: 1px solid var(--border);
}
.sev {
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 6px;
}
.sev.高 {
  background: rgba(255, 107, 107, 0.18);
  color: var(--danger);
}
.sev.中 {
  background: rgba(246, 167, 59, 0.18);
  color: var(--up);
}
.sev.低,
.sev.待定 {
  background: var(--panel-2);
  color: var(--muted);
}
.card h4 {
  margin: 0 0 4px;
  font-size: 15px;
}
.card p {
  margin: 0;
  color: var(--muted);
  font-size: 13.5px;
}
.card .watch {
  color: var(--faint);
  font-size: 12.5px;
  margin-top: 6px;
}

/* indicator rows */
.ind-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 16px;
  flex-wrap: wrap;
}
.ind-row .ind-name {
  font-size: 14.5px;
  font-weight: 600;
}
.ind-meta {
  color: var(--muted);
  font-size: 12.5px;
}
.cadence {
  font-size: 11px;
  font-weight: 700;
  padding: 2px 9px;
  border-radius: 6px;
  background: var(--panel-2);
  color: var(--accent-2);
  border: 1px solid var(--border);
  white-space: nowrap;
}
.ind-list {
  display: grid;
  gap: 10px;
}

.disclaimer-bottom {
  margin-top: 28px;
  color: var(--faint);
  font-size: 12.5px;
  border-top: 1px dashed var(--border);
  padding-top: 16px;
}

.footer {
  border-top: 1px solid var(--border);
  padding: 22px 0;
  color: var(--faint);
  font-size: 13px;
}
.footer p {
  margin: 0;
}

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--accent-2);
  color: #06231a;
  padding: 10px 20px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 14px;
  opacity: 0;
  pointer-events: none;
  transition: all 0.25s ease;
  z-index: 50;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

@media (max-width: 760px) {
  .hero h1 {
    font-size: 26px;
  }
  .searchbar {
    flex-direction: column;
  }
  .btn-primary {
    padding: 12px;
  }
  .how {
    grid-template-columns: 1fr;
  }
  .cards {
    grid-template-columns: 1fr;
  }
  .result-head {
    flex-direction: column;
  }
}