:root {
  --bg: #eef2f7;
  --card: #ffffff;
  --ink: #182230;
  --muted: #66768b;
  --line: #e1e8f2;
  --line-strong: #cfd9e6;
  --blue: #1a73e8;
  --blue-dark: #1257b8;
  --blue-soft: #e8f1fe;
  --green: #14855f;
  --amber: #b26a00;
  --radius: 16px;
  --shadow: 0 12px 32px rgba(23, 43, 77, .07);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  background:
    radial-gradient(900px 420px at 85% -8%, #dce9fb 0%, transparent 60%),
    radial-gradient(700px 360px at 0% 0%, #e6f0fb 0%, transparent 55%),
    var(--bg);
  color: var(--ink);
  font-family: "Segoe UI", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  font-size: 14px;
  line-height: 1.6;
  min-height: 100vh;
}

a { color: inherit; }

/* ---------------- nav ---------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(255, 255, 255, .9);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: 1400px;
  margin: 0 auto;
  height: 64px;
  padding: 0 22px;
  display: flex;
  align-items: center;
  gap: 26px;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand-logo { width: 34px; height: 34px; object-fit: contain; }
.brand-name { font-size: 18px; font-weight: 700; letter-spacing: .3px; white-space: nowrap; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-size: 17px; letter-spacing: .2px; }
.brand-text em { font-style: normal; font-size: 11px; color: var(--muted); letter-spacing: .6px; }
.links { display: flex; gap: 6px; margin-left: 8px; }
.links a {
  text-decoration: none;
  color: var(--muted);
  font-size: 13.5px;
  padding: 7px 11px;
  border-radius: 9px;
}
.links a:hover { background: var(--blue-soft); color: var(--blue); }
.nav-clock {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: "Cascadia Mono", "JetBrains Mono", Consolas, monospace;
  font-size: 15px;
  color: var(--blue);
  font-weight: 700;
  letter-spacing: 1.1px;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.clock-tag {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 2px;
  color: #5b7fa6;
  border: 1px solid #c3d9ff;
  background: #eef4ff;
  border-radius: 4px;
  padding: 3px 5px 2px;
  line-height: 1;
}

/* ---------------- page ---------------- */
.page { max-width: 1400px; margin: 0 auto; padding: 22px 22px 34px; }

.banner {
  position: relative;
  height: 220px;
  border-radius: 20px;
  overflow: hidden;
  background: linear-gradient(118deg, #0a1f3c 0%, #123a68 42%, #1c639e 72%, #65b6d8 100%);
  box-shadow: 0 18px 40px rgba(12, 38, 72, .22);
}
.banner-art {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(340px 220px at 78% 28%, rgba(255, 255, 255, .30), transparent 62%),
    radial-gradient(500px 280px at 18% 82%, rgba(0, 20, 45, .55), transparent 65%),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, .055) 0 1px, transparent 1px 46px),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, .045) 0 1px, transparent 1px 46px);
}
.banner-art::after {
  content: "";
  position: absolute;
  right: 9%;
  top: 18%;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, .85), rgba(255, 255, 255, .06) 62%, transparent 70%);
  filter: blur(2px);
}
.banner-copy {
  position: absolute;
  left: 34px;
  bottom: 28px;
  color: #fff;
  text-shadow: 0 2px 12px rgba(0, 12, 28, .5);
}
.kicker { font-size: 11px; letter-spacing: 3px; opacity: .8; }
.banner-copy h1 { margin: 6px 0 4px; font-size: 40px; line-height: 1.05; letter-spacing: .5px; }
.banner-copy p { margin: 0; font-size: 13.5px; opacity: .88; }

/* ---------------- head ---------------- */
.page-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin: 30px 2px 16px;
  flex-wrap: wrap;
}
.page-head h2 { margin: 0; font-size: 32px; letter-spacing: -.6px; }
.sub { margin: 0; color: var(--muted); font-size: 12.5px; }
.sub .src { color: var(--blue); font-weight: 600; }
.sub .src.mirror { color: var(--amber); }
.sub .src.sample, .sub .src.cache { color: var(--muted); }

/* ---------------- grid ---------------- */
.grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 290px;
  gap: 18px;
  align-items: start;
}

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.panel h3 {
  margin: 0;
  font-size: 14px;
  letter-spacing: .2px;
}

/* ---------------- viewer ---------------- */
.viewer { overflow: hidden; }
.panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
}
.panel-title h3 { font-size: 15px; }
.panel-title p { margin: 2px 0 0; font-size: 12px; color: var(--muted); }
.status { display: inline-flex; align-items: center; gap: 7px; font-size: 12px; color: var(--muted); white-space: nowrap; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: #b9c4d2; display: inline-block; }
.dot.ready { background: #14b87a; box-shadow: 0 0 0 3px rgba(20, 184, 122, .16); }
.dot.busy { background: var(--amber); animation: pulse 1.1s infinite; }
.dot.err { background: #d64545; }
@keyframes pulse { 50% { opacity: .3; } }

.chart-wrap {
  position: relative;
  background: #fff;
  min-height: 0;
  display: grid;
  place-items: center;
}
.chart-wrap img { display: block; width: 100%; height: auto; }
.mobile-hint { display: none; }
.loader {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background: rgba(255, 255, 255, .88);
  color: #46566b;
  font-size: 13px;
  z-index: 2;
}
.spinner {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 3px solid rgba(26, 115, 232, .15);
  border-top-color: #1a73e8;
  animation: spin .85s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.error {
  margin: 22px;
  padding: 13px 15px;
  border: 1px solid #f0c9c9;
  background: #fdf3f3;
  color: #a83232;
  border-radius: 10px;
  font-size: 13px;
}
.panel-foot {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 11px 16px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--muted);
  font-family: "Cascadia Mono", Consolas, monospace;
  flex-wrap: wrap;
}
.panel-foot a { margin-left: 0; color: var(--blue); text-decoration: none; }
.panel-foot a:first-of-type { margin-left: auto; }
.panel-foot a:hover { text-decoration: underline; }

/* ---------------- side ---------------- */
.side { display: flex; flex-direction: column; gap: 14px; }
.controls { padding: 16px; }
.controls h3 { margin-bottom: 14px; }
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 12px; min-width: 0; }
.field label, .check { font-size: 12px; color: var(--muted); }
.field label .val { float: right; color: var(--blue); font-family: "Cascadia Mono", Consolas, monospace; }
.pair { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

select, input[type="date"], input[type="number"] {
  width: 100%;
  height: 38px;
  padding: 0 10px;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  background: #fbfcfe;
  color: var(--ink);
  font: inherit;
  font-size: 13px;
  outline: none;
}
select:focus, input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(26, 115, 232, .13); background: #fff; }

.slider { display: grid; grid-template-columns: 1fr 64px; gap: 8px; align-items: center; }
.slider input[type="range"] { width: 100%; accent-color: var(--blue); }
.slider input[type="number"] { height: 34px; }

.check { display: flex; align-items: center; gap: 8px; margin: 4px 0 14px; cursor: pointer; }
.check input { accent-color: var(--blue); width: 15px; height: 15px; }

.btn {
  height: 40px;
  padding: 0 18px;
  border-radius: 10px;
  border: 1px solid var(--line-strong);
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s, border-color .15s, transform .1s;
}
.btn:hover { border-color: var(--blue); color: var(--blue); }
.btn:active { transform: translateY(1px); }
.btn.primary { background: var(--blue); border-color: var(--blue); color: #fff; }
.btn.primary:hover { background: var(--blue-dark); color: #fff; }
.btn:disabled { opacity: .6; cursor: progress; }
.btn.full { width: 100%; margin-top: 4px; }
.hint { margin: 10px 0 0; font-size: 11.5px; color: var(--muted); line-height: 1.55; }

/* ---------------- diagnostics ---------------- */
.diag { padding: 16px; }
.diag h3 { margin-bottom: 12px; }
.metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.metric {
  background: #f7f9fc;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px 10px;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: baseline;
}
.metric span { grid-column: 1 / -1; font-size: 10.5px; letter-spacing: 1px; color: var(--muted); }
.metric strong { font-size: 21px; font-weight: 700; font-family: "Cascadia Mono", Consolas, monospace; }
.metric em { font-style: normal; font-size: 10.5px; color: var(--muted); }
.rows { margin: 12px 0 0; display: flex; flex-direction: column; gap: 6px; }
.rows > div { display: flex; justify-content: space-between; gap: 10px; border-bottom: 1px dashed var(--line); padding-bottom: 6px; }
.rows dt { color: var(--muted); font-size: 11.5px; white-space: nowrap; }
.rows dd { margin: 0; font-family: "Cascadia Mono", Consolas, monospace; font-size: 11px; text-align: right; }
.phase { color: var(--blue); font-weight: 700; }
.reason { margin: 10px 0 0; font-size: 11px; color: var(--muted); line-height: 1.5; }

/* ---------------- folds ---------------- */
.fold { padding: 0; }
.fold summary {
  list-style: none;
  cursor: pointer;
  padding: 14px 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.fold summary::-webkit-details-marker { display: none; }
.fold summary::after { content: "+"; font-size: 17px; color: var(--muted); transition: transform .2s; }
.fold[open] summary::after { transform: rotate(45deg); }
.fold-body { padding: 0 16px 16px; }

/* ---------------- disclaimer ---------------- */
.disclaimer {
  margin-top: 22px;
  padding: 18px 24px;
  background: #f8fafd;
  border: 1px solid var(--line);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 42px;
  color: var(--muted);
  font-size: 12px;
  flex-wrap: wrap;
}
.disclaimer-part { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 3px; }
.disclaimer-part strong { color: var(--ink); font-size: 12.5px; }
.disclaimer-divider { width: 1px; height: 30px; background: var(--line); }

.footer {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px 22px 30px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: #8a98ab;
  font-size: 11.5px;
  flex-wrap: wrap;
}

/* ---------------- overlay ---------------- */
.overlay {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(18, 32, 52, .32);
  backdrop-filter: blur(3px);
}
.overlay-card {
  width: min(400px, 90vw);
  background: #fff;
  border-radius: 16px;
  padding: 26px 28px;
  box-shadow: 0 30px 70px rgba(15, 35, 65, .28);
  text-align: center;
}
.overlay-card .spinner { margin: 0 auto 12px; border-color: rgba(26, 115, 232, .16); border-top-color: var(--blue); }
.overlay-card p { margin: 0 0 14px; font-size: 13.5px; }
.steps { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 7px; text-align: left; }
.steps li { position: relative; padding-left: 22px; font-size: 12.5px; color: #99a6b7; }
.steps li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 6px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: 1px solid #c4cfdd;
}
.steps li.current { color: var(--blue); }
.steps li.current::before { border-color: var(--blue); background: var(--blue); box-shadow: 0 0 0 3px rgba(26, 115, 232, .15); }
.steps li.done { color: #6f8096; }
.steps li.done::before { border-color: var(--blue); background: #cfe2ff; }

/* ---------------- responsive ---------------- */
@media (max-width: 980px) {
  .grid { grid-template-columns: minmax(0, 1fr); }
  .side { display: grid; grid-template-columns: 1fr 1fr; }
  .side .fold { grid-column: 1 / -1; }
  .banner { height: 210px; }
  .banner-copy h1 { font-size: 32px; }
  .chart-wrap { overflow: hidden; display: block; min-height: 0; padding: 0; }
  .chart-wrap img { min-width: 0; width: 100%; }
  .mobile-hint {
    display: block;
    margin: 8px 14px 0;
    color: var(--muted);
    font-size: 11px;
    text-align: center;
  }
  #full-link {
    background: var(--blue);
    color: #fff !important;
    padding: 6px 12px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
  }
}
@media (max-width: 760px) {
  .nav-inner { padding: 0 14px; height: 58px; }
  .links { display: none; }
  .nav-clock { font-size: 11px; }
  .page { padding: 16px 14px 26px; }
  .banner { height: 176px; border-radius: 16px; }
  .brand-name { font-size: 15px; }
  .nav-clock { font-size: 10.5px; letter-spacing: 0; }
  .banner-copy { left: 18px; bottom: 18px; }
  .banner-copy h1 { font-size: 27px; }
  .banner-copy p { font-size: 12px; }
  .kicker { font-size: 9.5px; letter-spacing: 2px; }
  .page-head { margin: 18px 2px 12px; }
  .page-head h2 { font-size: 22px; }
  .head-actions { width: 100%; }
  .head-actions .btn { width: 100%; }
  .side { grid-template-columns: 1fr; }
  .panel-foot { font-size: 11px; gap: 10px; }
  .panel-foot a:first-of-type { margin-left: 0; }
  .disclaimer { flex-direction: column; gap: 12px; text-align: center; }
  .disclaimer-divider { display: none; }
}
@media (max-width: 360px) {
  .brand-name { font-size: 13px; }
  .clock-tag { display: none; }
  .nav-clock { font-size: 10px; letter-spacing: .3px; }
}
@media (prefers-reduced-motion: reduce) {
  .spinner { animation: none; }
  .dot.busy { animation: none; }
}