/* 接龙 — the dragon of ten segments, pixel-drawn on a deep jade night. One vermilion accent: the next segment and the
   drawn one. The CA rides a vertical rail on the right edge at every width. */
:root {
  --ground: #07140F; --ground2: #0C1E17; --plate: #10271E; --line: #1C3A2E;
  --ink: #DCEFE5; --dim: #7FA394; --mute: #4D6E61;
  --jade: #2E9C72; --jadeD: #1B5E45; --jadeL: #6FD3A8;
  --cin: #FF4458; --cinD: #B3202F;
  --railW: 42px;
  --disp: "ZCOOL KuaiLe", "Noto Sans SC", sans-serif;
  --px: "Silkscreen", "JetBrains Mono", monospace;
  --body: "Noto Sans SC", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
}
* { box-sizing: border-box; }
html { background: var(--ground); }
body.jl { margin: 0; background: var(--ground); color: var(--ink); font: 400 15px/1.6 var(--body); -webkit-font-smoothing: antialiased;
  background-image: linear-gradient(var(--ground2) 1px, transparent 1px), linear-gradient(90deg, var(--ground2) 1px, transparent 1px);
  background-size: 8px 8px; }
a { color: var(--jadeL); }
button { cursor: pointer; font-family: inherit; }
button:disabled { cursor: default; }

/* ---------- the CA rail: fixed on the right edge, vertical text ---------- */
.jl-rail { position: fixed; z-index: 50; right: 0; top: 50%; transform: translateY(-50%); width: var(--railW);
  display: flex; flex-direction: column; align-items: center; gap: 10px; padding: 12px 4px 12px 6px;
  background: var(--plate); border-left: 4px solid var(--cin);
  box-shadow: -4px 0 0 0 var(--ground), -4px -4px 0 0 var(--line), -4px 4px 0 0 var(--line); }
.jl-rail-k { writing-mode: vertical-rl; font: 700 9px/1 var(--px); letter-spacing: .08em; color: var(--dim); }
.jl-rail-ca { writing-mode: vertical-rl; font: 500 11px/1.1 var(--mono); color: var(--ink); white-space: nowrap;
  user-select: all; -webkit-user-select: all; }
.jl-rail-ca.is-wait { user-select: none; -webkit-user-select: none; color: var(--mute); font-family: var(--body); letter-spacing: .1em; }
.jl-rail-copy { width: 32px; padding: 7px 0; border: 0; background: var(--cin); color: #fff; font: 700 11px/1 var(--body);
  box-shadow: 2px 2px 0 var(--cinD); writing-mode: vertical-rl; letter-spacing: .2em; }
.jl-rail-copy:disabled { background: var(--line); color: var(--mute); box-shadow: none; }
.jl-rail-copy[data-done="1"] { background: var(--jade); box-shadow: 2px 2px 0 var(--jadeD); }
.jl-rail-gm { writing-mode: vertical-rl; font: 400 9px/1 var(--px); color: var(--dim); text-decoration: underline; }

/* ---------- page frame: one long scroll ---------- */
.jl-scroll { max-width: 1240px; margin: 0 auto; padding: 12px calc(var(--railW) + 12px) 32px 14px;
  display: grid; grid-template-columns: minmax(0, 1fr); gap: 22px; }
.jl-mast { display: flex; align-items: center; gap: 10px; }
.jl-mark { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; color: var(--ink); font: 400 24px/1 var(--disp); }
.jl-mark img { image-rendering: pixelated; box-shadow: 0 0 0 2px var(--line); }
.jl-no { font: 400 11px/1 var(--px); color: var(--dim); margin-right: auto; }
.jl-purse { border: 2px solid var(--line); background: var(--ground2); color: var(--ink); padding: 7px 10px; font: 500 13px/1 var(--body); }
.jl-purse.on { border-color: var(--jade); color: var(--jadeL); }

/* ---------- the stage: last draw, the dragon, the live line, the action ---------- */
.jl-stage { display: flex; flex-direction: column; gap: 12px; min-width: 0; }
.jl-crown { margin: 0; padding: 10px 12px; background: var(--plate); border-left: 4px solid var(--cin); font: 400 14px/1.55 var(--body); color: var(--ink); }
.jl-crown b { font-weight: 700; color: #fff; }
.jl-crown .amt { font: 700 15px/1 var(--mono); color: var(--cin); }
.jl-crown .who { font: 500 12px/1 var(--mono); color: var(--jadeL); }
.jl-wyrm { margin: 0; padding: 10px 6px 8px; background: radial-gradient(120% 90% at 50% 40%, #0F2C21 0%, var(--ground) 72%);
  box-shadow: inset 0 0 0 2px var(--line); }
.jl-wyrm-svg { display: block; width: 100%; height: auto; }
.jl-hb { fill: var(--jade); } .jl-hd { fill: var(--jadeD); } .jl-he { fill: var(--cin); }
.jl-jt { fill: var(--jadeD); }
.jl-sg .jl-sb { fill: #12261E; transition: fill .4s; }
.jl-sg .jl-sp { fill: #1A3429; }
.jl-sn { font: 700 15px/1 var(--px); fill: var(--mute); }
.jl-sw { font: 500 9.5px/1 var(--mono); fill: var(--mute); }
.jl-sg.is-full .jl-sb { fill: var(--jade); }
.jl-sg.is-full .jl-sp { fill: var(--jadeL); }
.jl-sg.is-full .jl-sn { fill: var(--ground); }
.jl-sg.is-full .jl-sw { fill: var(--jadeL); }
.jl-sg.is-next .jl-sb { fill: var(--cin); animation: jlBlink 1.1s steps(2, jump-none) infinite; }
.jl-sg.is-next .jl-sn { fill: #fff; }
.jl-sg.is-next .jl-sw { fill: var(--cin); }
.jl-sg.is-won .jl-sb { fill: var(--cin); filter: drop-shadow(0 0 6px var(--cin)); }
.jl-sg.is-won .jl-sp { fill: #FFC2C9; }
.jl-sg.is-won .jl-sn { fill: #fff; }
.jl-sg.is-won .jl-sw { fill: var(--cin); font-weight: 700; }
.jl-sg.is-lost .jl-sb { fill: var(--jadeD); }
.jl-sg.is-lost .jl-sn { fill: var(--dim); }
.jl-sg.is-pop .jl-sb { animation: jlPop .5s steps(4) 1; }
@keyframes jlBlink { 0% { opacity: 1; } 100% { opacity: .35; } }
@keyframes jlPop { 0% { fill: #fff; } 100% { fill: var(--jade); } }
.jl-key { display: flex; flex-wrap: wrap; gap: 6px 14px; justify-content: center; padding-top: 6px; font: 400 11px/1 var(--body); color: var(--dim); }
.jl-k { display: inline-block; width: 10px; height: 10px; margin-right: 5px; vertical-align: -1px; }
.jl-k-full { background: var(--jade); } .jl-k-next { background: var(--cin); opacity: .6; } .jl-k-void { background: #12261E; box-shadow: inset 0 0 0 1px var(--line); } .jl-k-won { background: var(--cin); }
.jl-live { margin: 0; font: 500 16px/1.6 var(--body); color: var(--ink); }
.jl-live b { color: #fff; } .jl-live .amt { font-family: var(--mono); color: var(--cin); font-weight: 700; }
.jl-act { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.jl-latch { flex: 1 1 200px; border: 0; padding: 15px 18px; background: var(--cin); color: #fff; font: 400 22px/1 var(--disp); letter-spacing: .04em;
  box-shadow: 4px 4px 0 var(--cinD); }
.jl-latch:active:not(:disabled) { transform: translate(2px, 2px); box-shadow: 2px 2px 0 var(--cinD); }
.jl-latch:disabled { background: var(--plate); color: var(--mute); box-shadow: 4px 4px 0 var(--line); }
.jl-clock { font: 700 14px/1 var(--px); color: var(--dim); }

/* ---------- the tape + past dragons ---------- */
.jl-side { min-width: 0; display: flex; flex-direction: column; gap: 10px; }
.jl-h { margin: 6px 0 0; font: 400 21px/1.1 var(--disp); color: var(--ink); letter-spacing: .03em; }
.jl-h em { font: 400 10px/1 var(--px); font-style: normal; color: var(--cin); vertical-align: 3px; margin-left: 6px; }
.jl-tape { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; border-top: 2px dashed var(--line); }
.jl-tape li { display: grid; grid-template-columns: 44px minmax(0, 1fr) auto; gap: 8px; align-items: baseline; padding: 8px 2px; border-bottom: 2px dashed var(--line); font-size: 13.5px; }
.jl-tape li.jl-quiet { display: block; color: var(--dim); }
.jl-tape .t { font: 400 10px/1 var(--px); color: var(--mute); }
.jl-tape .w { font: 500 12px/1 var(--mono); color: var(--jadeL); }
.jl-tape .v { font: 700 12px/1 var(--mono); color: var(--dim); white-space: nowrap; }
.jl-tape li.draw { background: linear-gradient(90deg, rgba(255, 68, 88, .14), transparent); }
.jl-tape li.draw .v { color: var(--cin); }
.jl-tape li.fresh { animation: jlPrint .7s steps(7) 1; }
@keyframes jlPrint { from { clip-path: inset(0 100% 0 0); } to { clip-path: inset(0 0 0 0); } }
.jl-past { display: flex; flex-direction: column; gap: 8px; }
.jl-pastrow { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 4px 10px; align-items: center; padding: 8px; background: var(--ground2); box-shadow: inset 0 0 0 2px var(--line); text-decoration: none; color: var(--ink); font-size: 13px; }
.jl-pastrow .strip { display: grid; grid-template-columns: repeat(10, 9px); gap: 2px; }
.jl-pastrow .strip i { height: 12px; background: var(--jadeD); }
.jl-pastrow .strip i.o { background: #12261E; }
.jl-pastrow .strip i.won { background: var(--cin); }
.jl-pastrow .amt { font: 700 12px/1 var(--mono); color: var(--cin); }
.jl-quiet { margin: 0; color: var(--dim); font-size: 13.5px; }
.jl-stats { display: flex; flex-wrap: wrap; gap: 4px 16px; font-size: 12.5px; color: var(--dim); }
.jl-stats b { font: 700 13px/1 var(--mono); color: var(--ink); }

/* ---------- worked example + spec ---------- */
.jl-math, .jl-rules { min-width: 0; }
.jl-mini { display: grid; grid-template-columns: repeat(10, 1fr); gap: 4px; max-width: 340px; margin: 10px 0 6px; }
.jl-mini i { aspect-ratio: 1; background: var(--jade); box-shadow: inset -3px -3px 0 var(--jadeD); }
.jl-mini i.won { background: var(--cin); box-shadow: inset -3px -3px 0 var(--cinD), 0 0 8px var(--cin); }
.jl-steps { margin: 0; padding-left: 22px; display: flex; flex-direction: column; gap: 6px; }
.jl-steps b { font-family: var(--mono); color: #fff; }
.jl-spec { margin: 8px 0 0; display: grid; grid-template-columns: 76px minmax(0, 1fr); gap: 8px 12px; }
.jl-spec dt { font: 400 16px/1.5 var(--disp); color: var(--cin); }
.jl-spec dd { margin: 0; color: var(--ink); font-size: 14px; }

/* ---------- alt views (history / one wallet / 404) ---------- */
.jl-alt { min-width: 0; }
.jl-alt table { width: 100%; border-collapse: collapse; font-size: 13px; }
.jl-alt td, .jl-alt th { text-align: left; padding: 7px 4px; border-bottom: 2px dashed var(--line); }
.jl-alt th { font: 400 10px/1 var(--px); color: var(--dim); }
.jl-alt .mono { font-family: var(--mono); }
body.jl-other .jl-stage, body.jl-other .jl-side, body.jl-other .jl-math, body.jl-other .jl-rules { display: none; }

/* ---------- footer ---------- */
.jl-foot { border-top: 4px solid var(--line); padding-top: 14px; display: flex; flex-direction: column; gap: 6px; font-size: 12.5px; color: var(--dim); min-width: 0; }
.jl-foot-id { display: flex; align-items: center; gap: 8px; color: var(--ink); font: 400 15px/1 var(--disp); }
.jl-foot-id img { image-rendering: pixelated; }
.jl-foot-kv code { font: 500 11.5px/1.4 var(--mono); color: var(--ink); word-break: break-all; }
.jl-foot-nav { display: flex; flex-wrap: wrap; gap: 6px 14px; }
.jl-foot-tag { margin: 4px 0 0; font: 400 10px/1 var(--px); color: var(--mute); }

/* ---------- sheet (wallet pick / steps) ---------- */
.jl-sheet { position: fixed; inset: 0; z-index: 80; background: rgba(3, 10, 7, .78); display: flex; align-items: flex-end; justify-content: center; }
.jl-sheet[hidden] { display: none; }
.jl-sheet-card { width: min(520px, 100%); background: var(--plate); border-top: 4px solid var(--cin); padding: 14px 16px 22px; }
.jl-sheet-top { display: flex; justify-content: space-between; align-items: center; font: 400 20px/1 var(--disp); margin-bottom: 10px; }
.jl-sheet-top button { border: 0; background: none; color: var(--ink); font-size: 24px; }
.jl-picks { display: flex; flex-direction: column; gap: 8px; }
.jl-picks button { display: flex; align-items: center; gap: 10px; padding: 10px; border: 2px solid var(--line); background: var(--ground2); color: var(--ink); font-size: 15px; }
.jl-picks img { width: 24px; height: 24px; }
.jl-toast { position: fixed; left: 50%; bottom: 18px; transform: translateX(-50%); z-index: 90; background: var(--ink); color: var(--ground); padding: 9px 14px; font: 500 14px/1.3 var(--body); box-shadow: 3px 3px 0 var(--cin); max-width: 80vw; }

/* ---------- tablet: still one column, a wider measure ---------- */
@media (min-width: 640px) {
  :root { --railW: 48px; }
  .jl-rail-ca { font-size: 12.5px; }
  .jl-scroll { padding-left: 28px; padding-right: calc(var(--railW) + 28px); gap: 28px; }
  .jl-live { font-size: 18px; }
  .jl-crown { font-size: 15.5px; }
  .jl-latch { flex: 0 1 340px; font-size: 26px; }
}

/* ---------- desktop: dragon + action left, tape column right, worked example beside the spec ---------- */
@media (min-width: 1000px) {
  :root { --railW: 54px; }
  .jl-rail-ca { font-size: 13.5px; }
  .jl-rail-k { font-size: 10px; }
  .jl-scroll { grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr); column-gap: 40px; row-gap: 34px;
    grid-template-areas: "mast mast" "stage side" "math rules" "alt alt" "foot foot"; padding-top: 22px; }
  .jl-mast { grid-area: mast; }
  .jl-stage { grid-area: stage; }
  .jl-side { grid-area: side; position: sticky; top: 18px; align-self: start; max-height: calc(100vh - 36px); overflow: auto; }
  .jl-math { grid-area: math; } .jl-rules { grid-area: rules; } .jl-alt { grid-area: alt; } .jl-foot { grid-area: foot; }
  .jl-mark { font-size: 30px; }
  .jl-live { font-size: 19px; }
  .jl-h { font-size: 26px; }
  .jl-foot { flex-direction: row; flex-wrap: wrap; align-items: center; column-gap: 26px; }
  .jl-foot-tag { flex-basis: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  .jl-sg.is-next .jl-sb, .jl-tape li.fresh, .jl-sg.is-pop .jl-sb { animation: none; }
}