/* 《知凯守卫战》 stylesheet.
   The first blocks are the page shell: the reset, #app, #boot and #fatal.
   Everything from "HUD" down belongs to src/hud. */

:root {
  --zk-ink: #0b0f16;
  --zk-paper: #efe6d2;
  --zk-amber: #ffb347;
  --zk-red: #e5483a;
  --zk-moon: #9db8e8;
  --zk-font: "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", "Microsoft YaHei", system-ui, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: #05070b; color: var(--zk-paper); font-family: var(--zk-font); overflow: hidden; overscroll-behavior: none; -webkit-user-select: none; user-select: none; -webkit-tap-highlight-color: transparent; }
#app { position: fixed; inset: 0; }
#app canvas { display: block; width: 100%; height: 100%; outline: none; touch-action: none; }
#ui { position: fixed; inset: 0; pointer-events: none; z-index: 10; }
#ui .zk-click, #ui button { pointer-events: auto; }
body.showcase:not(.show-hud) #ui { display: none; }

/* ---- loading screen */
#boot { position: fixed; inset: 0; z-index: 50; display: grid; place-items: center; background: radial-gradient(120% 90% at 50% 40%, #131a26 0%, #05070b 70%); transition: opacity .35s ease; }
#boot.done { opacity: 0; pointer-events: none; }
.boot-card { width: min(420px, 78vw); text-align: center; }
.boot-mark { display: block; width: 56px; height: 72px; margin: 0 auto 14px; }
.boot-title { font-size: 34px; letter-spacing: .32em; text-indent: .32em; font-weight: 600; color: var(--zk-paper); }
.boot-sub { margin-top: 10px; font-size: 13px; letter-spacing: .2em; color: var(--zk-amber); opacity: .85; }
.boot-bar { margin: 26px auto 12px; height: 3px; background: rgba(255,255,255,.12); overflow: hidden; }
.boot-bar i { display: block; height: 100%; width: 4%; background: var(--zk-amber); transition: width .25s ease; }
.boot-text { font-size: 12px; color: rgba(239,230,210,.6); letter-spacing: .08em; }

/* ---- fatal error overlay */
#fatal { position: fixed; inset: 0; z-index: 60; display: grid; place-items: center; background: rgba(5,7,11,.94); }
#fatal[hidden] { display: none; }
.fatal-card { width: min(720px, 90vw); padding: 24px; border: 1px solid rgba(229,72,58,.6); background: #0d1118; }
.fatal-title { font-size: 20px; color: var(--zk-red); margin-bottom: 12px; }
.fatal-card pre { white-space: pre-wrap; word-break: break-word; max-height: 50vh; overflow: auto; font: 12px/1.5 ui-monospace, Menlo, monospace; color: #d8d2c4; -webkit-user-select: text; user-select: text; }
.fatal-card button { margin-top: 14px; padding: 8px 18px; background: var(--zk-amber); border: 0; color: #111; font: inherit; cursor: pointer; }

/* ================================================================== HUD  (src/hud — "a court file under emergency lighting")
   Identity: Songti headings + 朱红 double rules and seals (legal paperwork), condensed DIN numerals, amber / red
   hazard signage for alarms.  No glass panels, no neon.
   Sizing: #ui.zk-ui sets ONE unit — 1em = 16px on a 720px-high screen — and every size below is in em of that unit
   (containers keep font-size 1em; only text leaves and a few scaled groups set their own). */
:root {
  --zk-serif: "Songti SC", "STSong", "Noto Serif CJK SC", "Source Han Serif SC", "SimSun", serif;
  --zk-fang: "STFangsong", "FangSong", "Songti SC", "STSong", serif;
  --zk-num: "DIN Alternate", "DIN Condensed", "Bahnschrift", "Roboto Condensed", "Helvetica Neue", Arial, var(--zk-font);
  --zk-seal: #cf3a28;
  --zk-seal-hi: #ff5a44;
  --zk-brass: #e2c285;
  --zk-dim: rgba(239,230,210,.66);
  --zk-line: rgba(239,230,210,.22);
  --zk-void: rgba(7,9,13,.68);
}
#ui.zk-ui {
  font-size: clamp(11.5px, min(2.2222vh, 1.32vw), 26px); line-height: 1.25; color: var(--zk-paper);
  --pt: max(.95em, env(safe-area-inset-top)); --pb: max(.95em, env(safe-area-inset-bottom));
  --pl: max(1.15em, env(safe-area-inset-left)); --pr: max(1.15em, env(safe-area-inset-right));
  font-variant-numeric: tabular-nums; -webkit-font-smoothing: antialiased;
}
.zk-ui em, .zk-ui i { font-style: normal; }
.zk-ui button { font: inherit; color: inherit; background: none; border: 0; margin: 0; padding: 0; cursor: pointer; -webkit-appearance: none; appearance: none; border-radius: 0; }
.zk-ui kbd { display: inline-block; min-width: 1.75em; padding: .1em .42em .06em; text-align: center; font: 700 .8em/1.35 var(--zk-num); letter-spacing: 0; color: var(--zk-paper); background: rgba(239,230,210,.1); border: 1px solid rgba(239,230,210,.4); border-bottom-width: 2px; border-radius: .22em; text-shadow: none; }

/* ------------------------------------------------------------------ the in-game layer */
.zk-hud { position: absolute; inset: 0; opacity: 0; visibility: hidden; transition: opacity .25s ease, visibility 0s .25s; text-shadow: 0 1px 2px rgba(0,0,0,.9), 0 0 1px rgba(0,0,0,.8); }
.zk-hud.on { opacity: 1; visibility: visible; transition: opacity .25s ease; }
.zk-hud.dim { opacity: .22; }
.zk-hud em { font: 700 .74em var(--zk-serif); font-size: max(.74em, 9.5px); letter-spacing: .26em; color: rgba(239,230,210,.84); }
/* a soft dark frame behind the corner read-outs, so they hold on bright floors and lit walls alike */
.zk-hud::before { content: ''; position: absolute; inset: 0; background:
  linear-gradient(180deg, rgba(5,7,11,.5) 0%, rgba(5,7,11,0) 15%),
  radial-gradient(ellipse 34% 26% at 0% 100%, rgba(5,7,11,.72), rgba(5,7,11,0)),
  radial-gradient(ellipse 30% 26% at 100% 100%, rgba(5,7,11,.72), rgba(5,7,11,0)); }

.zk-bar { position: relative; height: .5em; background: rgba(239,230,210,.16); box-shadow: 0 0 0 1px rgba(7,9,13,.55); overflow: hidden; }
.zk-bar > i { position: absolute; inset: 0; transform-origin: 0 50%; will-change: transform; }
.zk-bar > .lag { background: rgba(255,255,255,.6); }
.zk-bar > .fill { background: var(--bar, var(--zk-paper)); }
.zk-bar > u { position: absolute; inset: 0; background: repeating-linear-gradient(90deg, transparent 0 calc(10% - 2px), rgba(7,9,13,.9) calc(10% - 2px) 10%); }

/* full-screen alarm frame */
.zk-edge { position: absolute; inset: 0; --hit: 0; }
.zk-edge i { position: absolute; inset: 0; opacity: 0; }
.zk-edge .hit { box-shadow: inset 0 0 9em rgba(255,44,24,.55); opacity: var(--hit); }
.zk-edge .low { box-shadow: inset 0 0 7em rgba(255,44,24,.42); }
.zk-edge.low .low { animation: zk-breathe 1.15s ease-in-out infinite; }
.zk-edge .core { background: linear-gradient(90deg, rgba(255,70,44,.5), rgba(255,70,44,0) 2.4%, rgba(255,70,44,0) 97.6%, rgba(255,70,44,.5)); }
.zk-edge.core .core { animation: zk-breathe .7s ease-in-out infinite; }

/* top left: plan of the floor */
.zk-map { position: absolute; left: var(--pl); top: var(--pt); width: 16.25em; }
.zk-map canvas { display: block; width: 100%; height: auto; border: 1px solid rgba(239,230,210,.3); }
.zk-map::before { content: ''; position: absolute; left: -1px; top: -1px; width: 1.2em; height: 1.2em; border-left: 3px solid var(--zk-seal); border-top: 3px solid var(--zk-seal); }
.zk-map-cap { display: flex; justify-content: space-between; align-items: baseline; margin-top: .32em; }
.zk-map-room { font: 700 .84em var(--zk-serif); letter-spacing: .26em; }
.zk-map-cap span { font-size: .6em; letter-spacing: .2em; color: var(--zk-dim); }

/* under the map: the docket feed (toasts) */
.zk-feed { position: absolute; left: var(--pl); top: calc(var(--pt) + 10em); display: flex; flex-direction: column; align-items: flex-start; gap: .28em; }
.zk-toast { display: none; font-size: .8em; padding: .34em .9em .34em .7em; background: var(--zk-void); border-left: 2px solid var(--zk-amber); letter-spacing: .08em; white-space: nowrap; }
.zk-toast.on { display: block; animation: zk-toast-in .22s ease-out both; }
.zk-toast.credit { border-left-color: var(--zk-brass); color: var(--zk-brass); }
.zk-toast.buy { border-left-color: var(--zk-moon); }
.zk-toast.warn { border-left-color: var(--zk-seal-hi); color: #ffd9d2; }
.zk-toast.boss { border-left: .5em solid var(--zk-seal-hi); font-family: var(--zk-serif); font-weight: 900; font-size: .95em; letter-spacing: .2em; }

/* top centre: the vault */
.zk-core { position: absolute; left: 50%; top: var(--pt); width: 24em; margin-left: -12em; }
.zk-core-head { display: flex; align-items: baseline; gap: .7em; margin-bottom: .3em; }
.zk-core-name { font: 900 .9em var(--zk-serif); letter-spacing: .36em; }
.zk-core-state { font: 700 .64em var(--zk-serif); letter-spacing: .3em; padding: .14em .3em .12em .6em; color: var(--zk-amber); border: 1px solid currentColor; text-shadow: none; }
.zk-core-num { margin-left: auto; font-family: var(--zk-num); font-weight: 700; white-space: nowrap; }
.zk-core-num b { font-size: 1.5em; line-height: 1; }
.zk-core-num i { font-size: .82em; margin-left: .35em; color: var(--zk-dim); }
.zk-core-bar { height: .58em; --bar: linear-gradient(90deg, #e79a2e, #ffd27f); }
.zk-core[data-level="warn"] .zk-core-bar { --bar: linear-gradient(90deg, #e2661f, #ff9a3c); }
.zk-core[data-level="crit"] .zk-core-bar { --bar: linear-gradient(90deg, #c92a18, #ff5a44); }
.zk-core[data-level="crit"] .zk-core-num b, .zk-core[data-level="crit"] .zk-core-state { color: var(--zk-seal-hi); }
.zk-core[data-level="crit"] .zk-core-bar .fill { animation: zk-blink 0.6s steps(2, jump-none) infinite; }
.zk-core.hit .zk-core-state { color: #fff; background: var(--zk-seal); border-color: var(--zk-seal); }
.zk-core.hit .zk-core-name { color: #ffd9d2; }
.zk-core::after { content: ''; display: block; height: .3em; margin-top: .22em; opacity: 0; background: repeating-linear-gradient(-45deg, var(--zk-seal-hi) 0 .45em, rgba(7,9,13,.7) .45em .9em); background-size: 1.2728em 100%; }
.zk-core.hit::after { opacity: 1; animation: zk-hazard .5s linear infinite; }
.zk-core.flash .zk-core-bar .fill { background: #fff; }
.zk-boss { display: none; margin-top: .5em; }
.zk-boss.on { display: block; }
.zk-boss-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: .25em; }
.zk-boss-name { font: 900 1em var(--zk-serif); letter-spacing: .34em; color: #ff8672; }
.zk-boss-tag { font: 700 .62em var(--zk-serif); letter-spacing: .3em; padding: .16em .3em .14em .6em; background: var(--zk-seal); color: #fff; text-shadow: none; }
.zk-boss-bar { height: .42em; --bar: linear-gradient(90deg, #b3210f, #ff5a44); }

/* top right: wave, enemies left, credits */
.zk-wave { position: absolute; right: var(--pr); top: var(--pt); min-width: 13em; text-align: right; }
.zk-wave-no { display: flex; justify-content: flex-end; align-items: center; gap: .8em; padding-bottom: .34em; border-bottom: 1px solid var(--zk-line); position: relative; }
.zk-wave-no::after { content: ''; position: absolute; right: 0; bottom: -2px; width: 2.4em; height: 3px; background: var(--zk-seal); }
.zk-wave-txt { font: 900 1.5em/1 var(--zk-serif); letter-spacing: .16em; margin-right: -.16em; order: 2; }
.zk-pips { display: inline-flex; gap: .22em; align-items: center; order: 1; }
.zk-pips i { width: .36em; height: .95em; background: rgba(239,230,210,.24); box-shadow: 0 0 0 1px rgba(7,9,13,.5); }
.zk-pips i.done { background: var(--zk-paper); }
.zk-pips i.now { background: var(--zk-amber); animation: zk-blink 1s steps(2, jump-none) infinite; }
.zk-pips i.last { width: .95em; clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%); box-shadow: none; }
.zk-pips i.last:not(.done):not(.now) { background: rgba(255,90,68,.6); }
.zk-wave-row { display: flex; justify-content: flex-end; align-items: baseline; gap: 1.3em; margin-top: .42em; white-space: nowrap; }
.zk-wave-row em { margin-right: .5em; }
.zk-wave-row b { font: 700 1.4em/1 var(--zk-num); }
.zk-rest { display: none; }
.zk-wave[data-mode="rest"] .zk-rest { display: inline; }
.zk-wave[data-mode="rest"] .zk-foe { display: none; }
.zk-rest b { color: var(--zk-amber); }
.zk-rest.urgent b { color: var(--zk-seal-hi); }
.zk-credits b { color: var(--zk-brass); transition: color .3s; }
.zk-credits.up b { color: #fff; transition: none; }

.zk-pausebtn { display: none; position: absolute; right: var(--pr); top: var(--pt); width: 2.6em; height: 2.6em; background: var(--zk-void); border: 1px solid var(--zk-line); align-items: center; justify-content: center; gap: .38em; }
.zk-pausebtn i { width: .32em; height: 1em; background: var(--zk-paper); }

/* bottom left: the defender */
.zk-vitals { position: absolute; left: var(--pl); bottom: var(--pb); display: flex; align-items: flex-end; gap: .85em; }
.zk-hp { display: flex; flex-direction: column; align-items: flex-start; }
.zk-hp b { font: 700 3.5em/.86 var(--zk-num); margin-top: .08em; min-width: 1.15em; }
.zk-vbars { width: 12.5em; padding-bottom: .3em; }
.zk-hp-bar { height: .62em; }
.zk-vitals[data-level="warn"] .zk-hp-bar { --bar: var(--zk-amber); }
.zk-vitals[data-level="crit"] .zk-hp-bar { --bar: var(--zk-seal-hi); }
.zk-vitals[data-level="crit"] .zk-hp b { color: var(--zk-seal-hi); animation: zk-blink .8s steps(2, jump-none) infinite; }
.zk-vitals.hit .zk-hp b { color: var(--zk-seal-hi); }
.zk-armor { display: flex; align-items: center; gap: .55em; margin-top: .42em; opacity: .42; }
.zk-armor.on { opacity: 1; }
.zk-armor-bar { flex: 1; height: .3em; --bar: var(--zk-moon); }
.zk-armor b { font: 700 .95em/1 var(--zk-num); min-width: 1.7em; text-align: right; color: var(--zk-moon); }

/* bottom right: the weapon */
.zk-ammo { position: absolute; right: var(--pr); bottom: var(--pb); width: 11.5em; text-align: right; }
.zk-ammo-num { display: flex; justify-content: flex-end; align-items: baseline; gap: .35em; font-family: var(--zk-num); font-weight: 700; }
.zk-ammo-num b { font-size: 3.5em; line-height: .86; }
.zk-ammo-num i { font-size: 1.3em; color: var(--zk-dim); }
.zk-ammo-num span { font-size: 1.5em; min-width: 1.6em; text-align: left; }
.zk-mag-bar { height: .42em; margin-top: .4em; }
.zk-mag-bar > .fill { transform-origin: 100% 50%; }
.zk-mag-bar > u { background: repeating-linear-gradient(90deg, transparent 0 calc(20% - 2px), rgba(7,9,13,.9) calc(20% - 2px) 20%); }
.zk-ammo-cap { display: flex; justify-content: space-between; align-items: baseline; margin-top: .32em; }
.zk-ammo-state { font: 700 .72em var(--zk-serif); letter-spacing: .3em; color: var(--zk-amber); }
.zk-ammo[data-level="low"] .zk-ammo-num b { color: var(--zk-amber); }
.zk-ammo[data-level="low"] .zk-mag-bar { --bar: var(--zk-amber); }
.zk-ammo[data-level="empty"] .zk-ammo-num b, .zk-ammo[data-level="empty"] .zk-ammo-state { color: var(--zk-seal-hi); }
.zk-ammo.reloading .zk-ammo-num b { opacity: .45; }
.zk-ammo { transition: right .3s cubic-bezier(.2,.8,.2,1); }
.zk-hud.docked .zk-ammo { right: calc(var(--pr) + 47.6em); }
.zk-touch .zk-hud.docked .zk-ammo { right: auto; left: 36%; }
.zk-touch .zk-hud.docked .zk-vitals { left: 36%; }
.zk-touch .zk-vitals, .zk-touch .zk-ammo { transition: left .3s cubic-bezier(.2,.8,.2,1); }

/* centre: crosshair, hit marker, reload ring, damage direction, hint */
.zk-center { position: absolute; left: 50%; top: 50%; width: 0; height: 0; }
.zk-cross { --gap: .25em; position: absolute; left: 0; top: 0; }
.zk-cross i { position: absolute; background: #fff; box-shadow: 0 0 0 1px rgba(0,0,0,.6); transition: opacity .1s; }
.zk-cross .t, .zk-cross .b { width: 2px; height: .5em; left: -1px; }
.zk-cross .l, .zk-cross .r { height: 2px; width: .5em; top: -1px; }
.zk-cross .t { bottom: var(--gap); } .zk-cross .b { top: var(--gap); }
.zk-cross .l { right: var(--gap); } .zk-cross .r { left: var(--gap); }
.zk-cross .dot { width: 2px; height: 2px; left: -1px; top: -1px; }
.zk-cross.ads i:not(.dot) { opacity: 0; }
.zk-hitmark { position: absolute; left: 0; top: 0; opacity: 0; will-change: transform, opacity; }
.zk-hitmark i { position: absolute; left: -1px; top: -.3em; width: 2px; height: .6em; background: #fff; box-shadow: 0 0 2px rgba(0,0,0,.9); }
.zk-hitmark i:nth-child(1) { transform: rotate(45deg) translateY(-.95em); }
.zk-hitmark i:nth-child(2) { transform: rotate(135deg) translateY(-.95em); }
.zk-hitmark i:nth-child(3) { transform: rotate(225deg) translateY(-.95em); }
.zk-hitmark i:nth-child(4) { transform: rotate(315deg) translateY(-.95em); }
.zk-hitmark[data-kind="weak"] i { background: var(--zk-amber); }
.zk-hitmark[data-kind="armor"] i { background: var(--zk-moon); }
.zk-hitmark[data-kind="kill"] i { background: var(--zk-seal-hi); width: 3px; left: -1.5px; height: .8em; top: -.4em; }
.zk-reload { position: absolute; left: -1.7em; top: -1.7em; width: 3.4em; height: 3.4em; transform: rotate(-90deg); opacity: 0; transition: opacity .12s; }
.zk-reload.on { opacity: 1; }
.zk-reload circle { fill: none; stroke-width: 2.5; }
.zk-reload .bg { stroke: rgba(7,9,13,.55); }
.zk-reload .fg { stroke: var(--zk-amber); }
.zk-dmg { position: absolute; left: 0; top: 0; width: 0; height: 0; opacity: 0; will-change: transform, opacity; }
.zk-dmg i { position: absolute; left: -7.5em; top: -7.5em; width: 15em; height: 15em; border-radius: 50%; border: .5em solid transparent; border-top-color: rgba(255,66,44,.95); clip-path: polygon(50% 50%, 24% 0, 76% 0); filter: drop-shadow(0 0 .35em rgba(255,50,30,.9)); }
.zk-dmg.strong i { border-top-width: .95em; }
.zk-hint { position: absolute; left: 0; top: 4.4em; transform: translateX(-50%); white-space: nowrap; font-size: .8em; letter-spacing: .22em; padding: .32em .7em .3em .9em; background: var(--zk-void); border-left: 2px solid var(--zk-amber); opacity: 0; transition: opacity .15s; }
.zk-hint.on { opacity: 1; }
.zk-hint[data-kind="crit"], .zk-hint[data-kind="dry"] { border-left-color: var(--zk-seal-hi); color: #ffd9d2; }
.zk-hint[data-kind="dry"] { animation: zk-shake-c .28s linear; }

/* markers pinned to things in the world (the vault; the last machines of a wave) */
.zk-markers { position: absolute; inset: 0; overflow: hidden; }
.zk-mark { position: absolute; left: 0; top: 0; display: none; will-change: transform; }
.zk-mark.on { display: block; }
.zk-mark { text-shadow: 0 0 3px #000, 0 1px 2px #000; }
.zk-mark .ico { position: absolute; left: -.55em; top: -.55em; width: 1.1em; height: 1.1em; border: 2px solid currentColor; background: rgba(7,9,13,.6); box-shadow: 0 0 0 1px rgba(7,9,13,.7); }
.zk-mark .ico::after { content: ''; position: absolute; left: 50%; top: 50%; width: .22em; height: .22em; margin: -.11em 0 0 -.11em; background: currentColor; }
.zk-mark.foe .ico { transform: rotate(45deg) scale(.8); }
.zk-mark b { position: absolute; left: 0; top: .78em; transform: translateX(-50%); font: 700 .74em/1 var(--zk-num); white-space: nowrap; letter-spacing: .06em; }
.zk-mark.core::before { content: '保险柜'; position: absolute; left: 0; bottom: .78em; transform: translateX(-50%); font: 700 .68em/1 var(--zk-serif); letter-spacing: .26em; margin-left: .13em; white-space: nowrap; }
.zk-mark.core.hot::before { content: '保险柜遇袭'; }
.zk-mark .arr { display: none; position: absolute; left: 0; top: 0; width: 0; height: 0; }
.zk-mark.pin .arr { display: block; }
.zk-mark .arr::before { content: ''; position: absolute; left: -.42em; top: -1.75em; border: .42em solid transparent; border-top: 0; border-bottom: .7em solid currentColor; }
.zk-mark.pin b { top: 1.25em; }
.zk-mark.core.pin::before { display: none; }
.zk-mark.core { color: var(--zk-amber); opacity: .82; }
.zk-mark.core.hot { color: var(--zk-seal-hi); opacity: 1; }
.zk-mark.core.hot .ico { animation: zk-ping .6s ease-out infinite; }
.zk-mark.core.hot.pin::before { display: block; bottom: auto; top: 2.3em; }
.zk-mark.foe { color: var(--zk-seal-hi); }

/* radio subtitles */
.zk-radio { position: absolute; left: 50%; bottom: 16.5%; text-shadow: 0 1px 2px rgba(0,0,0,.9); width: max-content; max-width: min(44em, 76vw); transform: translate(-50%, .5em); display: flex; align-items: baseline; gap: .9em; padding: .52em 1.2em .5em .9em; background: rgba(7,9,13,.74); border-left: 3px solid var(--zk-amber); opacity: 0; transition: opacity .2s, transform .2s; }
.zk-radio.on { opacity: 1; transform: translate(-50%, 0); }
.zk-radio-who { font: 900 .78em var(--zk-serif); letter-spacing: .26em; color: var(--zk-amber); white-space: nowrap; }
.zk-radio-who::before { content: '【'; } .zk-radio-who::after { content: '】'; margin-left: -.26em; }
.zk-radio-text { font-size: 1em; line-height: 1.5; letter-spacing: .06em; }
#ui[data-state="title"] .zk-radio { display: none; }
#ui[data-state="intermission"] .zk-radio { left: calc(50% - 10em); max-width: min(34em, 50vw); }
#ui.zk-docked[data-state="intermission"] .zk-radio { left: calc(var(--pl) + 10.4em); bottom: calc(var(--pb) + 7.2em); transform: none; max-width: calc(100vw - var(--pl) - 10.4em - 47.6em - var(--pr) - .8em); width: auto; }
#ui[data-state="won"] .zk-radio, #ui[data-state="lost"] .zk-radio, #ui[data-state="paused"] .zk-radio { bottom: 3.5%; }

/* wave banner: a document heading with the red double rule */
.zk-banner { position: absolute; left: 50%; top: 17.5%; transform: translateX(-50%); min-width: 23em; padding: .8em 2.4em 1em; text-align: center; opacity: 0; visibility: hidden; transition: opacity .35s, visibility 0s .35s; background: radial-gradient(ellipse 50% 50% at 50% 50%, rgba(7,9,13,.78), rgba(7,9,13,.4) 60%, rgba(7,9,13,0)); }
.zk-banner.on { opacity: 1; visibility: visible; transition: opacity .18s; }
.zk-banner-kicker { min-height: 1.3em; font: 700 .78em var(--zk-serif); letter-spacing: .34em; text-indent: .34em; color: var(--zk-amber); }
.zk-banner-main { font: 900 3.5em/1.2 var(--zk-serif); letter-spacing: .32em; text-indent: .32em; white-space: nowrap; text-shadow: 0 2px 14px rgba(0,0,0,.9), 0 0 2px #000; }
.zk-banner-rule { height: 7px; margin: .45em 0 .6em; border-top: 3px solid var(--zk-seal); border-bottom: 1px solid var(--zk-seal); transform-origin: 50% 50%; }
.zk-banner.on .zk-banner-rule { animation: zk-rule .5s cubic-bezier(.2,.8,.2,1) both; }
.zk-banner-sub { min-height: 1.3em; font-size: .92em; letter-spacing: .3em; text-indent: .3em; white-space: nowrap; }
.zk-banner-stamp { display: none; position: absolute; right: 1.6em; top: .5em; padding: .22em .3em .2em .56em; font: 900 1.2em/1.1 var(--zk-serif); letter-spacing: .26em; color: var(--zk-seal-hi); border: .15em solid var(--zk-seal-hi); border-radius: .16em; transform: rotate(-11deg); text-shadow: none; }
.zk-banner.clear .zk-banner-stamp { display: block; }
.zk-banner.clear.on .zk-banner-stamp { animation: zk-stamp .4s .12s cubic-bezier(.2,1.5,.4,1) both; }
.zk-banner.clear .zk-banner-sub { color: var(--zk-brass); }
.zk-banner.boss .zk-banner-main { color: #ff7a66; }
.zk-banner.boss .zk-banner-kicker { color: var(--zk-seal-hi); }
.zk-banner.boss::before, .zk-banner.boss::after { content: ''; display: block; height: .5em; background: repeating-linear-gradient(-45deg, var(--zk-amber) 0 .7em, #0b0d11 .7em 1.4em); }
.zk-banner.boss::before { margin-bottom: .7em; } .zk-banner.boss::after { margin-top: .8em; }

/* intermission: the requisition panel, docked right — three tabs (武器 cards · 升级 · 补给与防御), results page before it */
.zk-shop { position: absolute; right: var(--pr); top: calc(var(--pt) + 4.6em); width: min(46em, calc(100vw - var(--pl) - var(--pr) - 12em)); transform: translateX(calc(100% + 3em)); visibility: hidden; transition: transform .3s cubic-bezier(.2,.8,.2,1), visibility 0s .3s; text-shadow: none; }
.zk-shop.on { transform: none; visibility: visible; transition: transform .3s cubic-bezier(.2,.8,.2,1); }
.zk-shop-body { position: relative; display: flex; flex-direction: column; max-height: calc(100vh - var(--pt) - var(--pb) - 4.6em); padding: .8em 1em .75em; background: rgba(10,12,17,.92); border-top: 3px solid var(--zk-seal); box-shadow: 0 .8em 2.4em rgba(0,0,0,.5); pointer-events: auto; }
.zk-shop-body::before { content: ''; position: absolute; left: 0; right: 0; top: 2px; border-top: 1px solid var(--zk-seal); }
.zk-shop-head { display: flex; justify-content: space-between; align-items: center; }
.zk-shop-title { cursor: pointer; }
.zk-shop-title span { display: block; font: 900 1.3em/1.1 var(--zk-serif); letter-spacing: .22em; }
.zk-shop-title em { display: none; }
.zk-shop-clock { display: flex; align-items: baseline; gap: .7em; }
.zk-shop-clock b { font: 700 1.8em/1 var(--zk-num); color: var(--zk-amber); }
.zk-shop-clock.urgent b { color: var(--zk-seal-hi); }
.zk-shop-hold { display: none; align-self: flex-end; margin-top: .1em; font-size: .7em; letter-spacing: .14em; color: var(--zk-moon); }
.zk-shop-hold.on { display: block; }
.zk-shop-next { display: none; margin-top: .4em; padding: .3em .7em .32em; background: rgba(255,179,71,.09); border-left: 2px solid var(--zk-amber); }
.zk-shop-next.on { display: grid; grid-template-columns: auto 1fr; gap: .05em .8em; align-items: baseline; }
.zk-shop-next b { font: 900 .86em var(--zk-serif); letter-spacing: .12em; }
.zk-shop-next span { grid-column: 1 / -1; font-size: .68em; line-height: 1.4; letter-spacing: .06em; color: var(--zk-dim); }
.zk-shop-next span:empty { display: none; }
.zk-shop-next.boss { border-left-color: var(--zk-seal-hi); background: rgba(255,90,68,.12); }
.zk-shop-next.boss b { color: #ff8672; }
.zk-shop-bar { display: flex; justify-content: space-between; align-items: stretch; gap: 1em; margin: .55em 0 .5em; border-bottom: 1px solid var(--zk-line); }
.zk-shop-tabs { display: flex; gap: .2em; }
.zk-ui .zk-shop-tabbtn { display: flex; align-items: center; gap: .45em; padding: .5em 1em .46em; font-size: .95em; letter-spacing: .14em; color: var(--zk-dim); background: transparent; border-bottom: 3px solid transparent; margin-bottom: -1px; white-space: nowrap; }
.zk-ui .zk-shop-tabbtn:hover { color: var(--zk-paper); background: rgba(239,230,210,.06); }
.zk-ui .zk-shop-tabbtn.on { color: var(--zk-paper); font-weight: 700; border-bottom-color: var(--zk-amber); background: rgba(255,179,71,.1); }
.zk-shop-purse { display: flex; align-items: baseline; gap: .8em; padding: 0 .1em; }
.zk-shop-purse b { font: 700 1.4em/1 var(--zk-num); color: var(--zk-brass); }
.zk-shop-list { display: grid; grid-template-columns: 1fr; gap: .28em; align-content: start; overflow-y: auto; min-height: 0; overscroll-behavior: contain; }
.zk-ui .zk-item { display: grid; grid-template-columns: auto 1fr auto auto; align-items: center; gap: .7em; width: 100%; padding: .42em .8em .42em .5em; text-align: left; background: rgba(239,230,210,.06); border-left: 2px solid rgba(239,230,210,.2); transition: background .15s; }
.zk-item:hover, .zk-item:active, .zk-item.sel { background: rgba(255,179,71,.18); border-left-color: var(--zk-amber); }
.zk-item.sel { box-shadow: inset 0 0 0 1px var(--zk-amber); }
.zk-item .nm { min-width: 0; }
.zk-item .nm b { display: block; font-weight: 600; font-size: .95em; letter-spacing: .1em; }
.zk-item .nm em { display: block; margin-top: .18em; font: 400 .72em/1.4 var(--zk-font); letter-spacing: .04em; color: var(--zk-dim); }
.zk-item .nm small { display: block; font-size: .66em; color: var(--zk-moon); letter-spacing: .06em; }
.zk-item .own { font: 700 .72em var(--zk-num); color: var(--zk-moon); letter-spacing: .04em; white-space: nowrap; text-align: right; }
.zk-item .cost { min-width: 2.8em; text-align: right; }
.zk-item .cost i { display: none; }
.zk-item .cost b { font: 700 1.25em/1 var(--zk-num); color: var(--zk-brass); }
.zk-item[data-state="na"], .zk-item[data-state="poor"] { opacity: .58; }
.zk-item[data-state="na"] .own { font: 400 .68em var(--zk-font); color: var(--zk-paper); }
.zk-item[data-state="poor"] .cost b { color: #ff8f7d; }
.zk-item[data-state="full"] { opacity: .5; }
.zk-item[data-state="full"] .own { color: var(--zk-amber); }
.zk-item.bought, .zk-wc.bought { animation: zk-bought .5s ease-out; }
.zk-item.denied, .zk-wc.denied { animation: zk-shake .28s linear; }
.zk-item kbd.none { opacity: .35; }
/* weapon cards: the game's own model, rendered (assets/shop/*.webp) */
.zk-wcs { display: grid; grid-template-columns: 1fr 1fr; gap: .4em; }
.zk-wc { display: grid; grid-template-columns: 9em 1fr; grid-template-rows: auto auto; gap: .15em .7em; padding: .45em .6em .45em .45em; background: rgba(239,230,210,.06); border-left: 2px solid rgba(239,230,210,.2); }
.zk-wc[data-state="owned"] { border-left-color: var(--zk-moon); }
.zk-wc[data-state="ok"] { border-left-color: var(--zk-amber); }
.zk-wc[data-roof="1"] .tx b::before { content: '窗口 '; font-size: .72em; color: var(--zk-amber); letter-spacing: .1em; }
.zk-wc .pic { position: relative; grid-row: 1 / 3; align-self: center; aspect-ratio: 8 / 5; background: radial-gradient(ellipse at 50% 60%, rgba(157,184,232,.14), rgba(7,9,13,.4) 72%); }
.zk-wc .pic img { display: block; width: 100%; height: 100%; object-fit: contain; filter: brightness(1.35) contrast(1.08); }
.zk-wc[data-state="locked"] .pic img { opacity: .62; filter: grayscale(1) brightness(1.15); }
.zk-wc .lock { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; }
.zk-wc .lock svg { width: 2em; height: 2em; stroke: var(--zk-paper); stroke-width: 2; fill: rgba(7,9,13,.7); opacity: .9; }
.zk-wc .tx b { display: block; font-size: .92em; font-weight: 600; letter-spacing: .08em; }
.zk-wc .tx em { display: block; margin-top: .15em; font: 400 .7em/1.4 var(--zk-font); letter-spacing: .03em; color: var(--zk-dim); }
.zk-wc .tx em.st { font-weight: 700; color: var(--zk-moon); }
.zk-wc .tx em.st.poor { color: #ff8f7d; }
.zk-wc .tx em.st.own { display: none; }
.zk-wc[data-state="locked"] .tx { opacity: .75; }
.zk-wc .act { align-self: end; }
.zk-ui .zk-wc .buy { display: flex; align-items: center; justify-content: space-between; gap: .5em; width: 100%; padding: .3em .6em .28em .45em; background: rgba(255,179,71,.16); border: 1px solid rgba(255,179,71,.5); font-size: .82em; letter-spacing: .08em; text-align: left; }
.zk-ui .zk-wc .buy:hover { background: rgba(255,179,71,.3); }
.zk-ui .zk-wc .buy span { flex: 1; } .zk-wc .buy small { font-size: .78em; color: var(--zk-dim); margin-left: .3em; }
.zk-wc .buy b { font: 700 1.15em/1 var(--zk-num); color: var(--zk-brass); }
.zk-ui .zk-wc .buy[data-state="poor"], .zk-ui .zk-wc .buy[data-state="na"], .zk-ui .zk-wc .buy[data-state="full"] { opacity: .55; background: transparent; border-color: rgba(239,230,210,.25); }
.zk-ui .zk-wc .buy[data-state="poor"] b { color: #ff8f7d; }
.zk-wc .own-note, .zk-wc .lock-note { display: block; font-size: .78em; letter-spacing: .1em; padding: .3em 0 .2em; }
.zk-wc .own-note { color: var(--zk-moon); font-weight: 700; }
.zk-wc .lock-note { color: var(--zk-amber); }
.zk-shop-foot { display: flex; justify-content: space-between; align-items: center; gap: .6em; margin-top: .6em; }
.zk-shop-keys { font-size: .64em; line-height: 2; letter-spacing: .02em; color: var(--zk-dim); white-space: nowrap; }
.zk-shop-keys kbd { margin: 0 .25em 0 .5em; } .zk-shop-keys kbd:first-child { margin-left: 0; }
.zk-ui .zk-shop-go { display: flex; align-items: center; gap: .6em; padding: .55em .7em .5em 1em; background: var(--zk-amber); color: #15110a; white-space: nowrap; }
.zk-shop-go b { font: 900 .95em var(--zk-serif); letter-spacing: .2em; }
.zk-ui .zk-shop-go kbd { color: #15110a; border-color: rgba(21,17,10,.6); background: rgba(21,17,10,.08); }
.zk-shop-go:hover { background: #ffc66e; }
.zk-ui .zk-shop-tab { display: none; align-items: center; gap: .6em; margin-left: auto; padding: .5em .8em; background: rgba(10,12,17,.9); border-top: 3px solid var(--zk-seal); pointer-events: auto; }
.zk-shop-tab span { font: 900 .9em var(--zk-serif); letter-spacing: .3em; }
.zk-shop-tab b { font: 700 1.2em var(--zk-num); color: var(--zk-amber); }
.zk-shop.collapsed .zk-shop-body { display: none; }
.zk-shop.collapsed .zk-shop-tab { display: flex; }
.zk-shop.collapsed { transform: none; }
/* 本关结算 */
.zk-resultsui { position: absolute; inset: 0; z-index: 6; display: none; align-items: center; justify-content: center; background: rgba(5,7,11,.55); pointer-events: auto; text-shadow: none; }
.zk-resultsui.on { display: flex; }
.zk-res-card { box-sizing: border-box; width: min(60em, 96vw); max-height: calc(100% - 1.6em); display: flex; flex-direction: column; overflow: hidden; padding: 1em 1.6em 1.1em; background: rgba(10,12,17,.96); border-top: 3px solid var(--zk-seal); box-shadow: 0 1em 3em rgba(0,0,0,.6); overscroll-behavior: contain; }
.zk-res-top { display: flex; gap: 1.6em; align-items: center; margin: .8em 0 .6em; }
.zk-res-stars { display: flex; gap: .3em; flex: none; }
.zk-res-stars i { width: 3.4em; height: 3.4em; }
.zk-res-stars svg { width: 100%; height: 100%; fill: rgba(239,230,210,.1); stroke: rgba(239,230,210,.3); stroke-width: 1; transition: transform .35s cubic-bezier(.2,1.6,.4,1), fill .2s; transform: scale(.82); }
.zk-res-stars i.on.rev svg { fill: var(--zk-amber); stroke: #ffe2a8; transform: scale(1); filter: drop-shadow(0 0 .4em rgba(255,179,71,.55)); }
.zk-res-verdict b { display: block; font: 900 1.5em var(--zk-serif); letter-spacing: .2em; margin-bottom: .3em; }
.zk-res-verdict b small { font: 400 .5em var(--zk-font); letter-spacing: .06em; color: var(--zk-dim); }
.zk-res-checks { list-style: none; margin: 0; padding: 0; }
.zk-res-checks li { display: flex; gap: .6em; align-items: baseline; font-size: .86em; line-height: 1.55; opacity: .35; transition: opacity .3s; }
.zk-res-checks li.rev { opacity: 1; }
.zk-res-checks li i { flex: none; width: 1.2em; font-weight: 900; }
.zk-res-checks li.ok i { color: #8fd6a0; } .zk-res-checks li.miss { color: #ffd0c8; } .zk-res-checks li.miss i { color: var(--zk-seal-hi); }
.zk-res-checks li em { margin-left: .8em; font-size: .88em; color: #ff9a88; }
.zk-res-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2em; padding-top: .7em; border-top: 1px solid var(--zk-line); margin-top: .4em; }
.zk-res-cols.two { grid-template-columns: 1fr 1fr; }
.zk-res-cols h4 { margin: 0 0 .35em; font: 900 .9em var(--zk-serif); letter-spacing: .3em; color: var(--zk-amber); display: flex; justify-content: space-between; align-items: baseline; }
.zk-res-cols h4 .tot { font: 700 1.2em var(--zk-num); letter-spacing: 0; color: var(--zk-brass); }
.zk-res-cols ul { list-style: none; margin: 0; padding: 0; font-size: .84em; line-height: 1.7; }
.zk-res-cols ul li { display: flex; justify-content: space-between; gap: .8em; }
.zk-res-cols ul li b { font: 700 1.05em var(--zk-num); } .zk-res-cols ul li small { color: var(--zk-dim); margin-left: .4em; }
.zk-res-cols li.bad { color: #ffb4a6; } .zk-res-cols li.dim { color: var(--zk-dim); }
.zk-res-cols ul.unl { display: grid; grid-template-columns: 1fr 1fr; gap: .3em .8em; }
.zk-res-cols ul.unl li { justify-content: flex-start; align-items: center; gap: .6em; }
.zk-res-cols ul.unl li.dim { grid-column: 1 / -1; }
.zk-res-cols ul.unl img { width: 5.4em; aspect-ratio: 8 / 5; object-fit: contain; background: rgba(157,184,232,.1); }
.zk-res-cols ul.unl .modeico, .zk-res-cols ul.unl .seal { flex: none; width: 2.2em; height: 2.2em; display: flex; align-items: center; justify-content: center; border: 2px solid var(--zk-seal-hi); color: var(--zk-seal-hi); font: 900 1.1em var(--zk-serif); border-radius: 50%; }
.zk-res-cols ul.unl li span b { display: block; font: 600 1em var(--zk-font); } .zk-res-cols ul.unl li span em { display: block; font: 400 .85em/1.35 var(--zk-font); color: var(--zk-dim); letter-spacing: 0; }
.zk-res-body { flex: 1 1 auto; min-height: 0; overflow-y: auto; overscroll-behavior: contain; padding-bottom: .3em; }   /* the list scrolls above the button: nothing hides behind 去整备 */
.zk-res-foot { flex: none; position: relative; z-index: 1; display: flex; justify-content: space-between; align-items: center; margin-top: .9em; padding: .5em 0 .3em; background: rgba(10,12,17,.98); }
.zk-res-hint { font-size: .7em; color: var(--zk-dim); }
.zk-ui .zk-btn.zk-res-go { width: auto; flex: none; min-width: 11em; justify-content: space-between; gap: 1em; } .zk-res-hint { white-space: nowrap; }
.zk-hud[data-shop] { }

/* ------------------------------------------------------------------ touch layout: the bottom corners belong to the sticks */
.zk-touch .zk-vitals { left: 50%; bottom: var(--pb); font-size: .82em; transform: translateX(calc(-100% - 1.2em)); }
.zk-touch .zk-ammo { right: auto; left: 50%; bottom: var(--pb); font-size: .82em; transform: translateX(1.2em); width: 9em; }
.zk-touch .zk-ammo-num { justify-content: flex-start; } .zk-touch .zk-ammo-cap { flex-direction: row-reverse; }
.zk-touch .zk-mag-bar > .fill { transform-origin: 0 50%; }
.zk-touch .zk-vbars { width: 9em; }
.zk-touch .zk-radio { bottom: auto; top: calc(var(--pt) + 4.7em); max-width: min(34em, 44vw); padding: .4em .9em .38em .7em; }
#ui.zk-touch[data-state="intermission"] .zk-radio { left: 34%; max-width: min(26em, 36vw); }
#ui.zk-touch[data-state="won"] .zk-radio, #ui.zk-touch[data-state="lost"] .zk-radio, #ui.zk-touch[data-state="paused"] .zk-radio { top: auto; bottom: 2%; }
.zk-touch .zk-hp em { display: none; }
.zk-touch .zk-banner { top: 24%; }
.zk-touch .zk-radio-text { font-size: .9em; line-height: 1.4; }
.zk-touch .zk-hint { top: 2.7em; }
.zk-touch .zk-ammo-name, .zk-touch .zk-ammo-cap em { display: none; }
.zk-touch .zk-hud .zk-wbar { display: none; }                      /* the tappable copy lives in #zk-touch (input) */
.zk-touch.zk-ownpause .zk-pausebtn { display: flex; pointer-events: auto; }
.zk-touch.zk-ownpause .zk-wave { right: calc(var(--pr) + 3.3em); }
.zk-touch .zk-shop-keys kbd { display: none; }
.zk-touch .zk-item { min-height: 40px; grid-template-columns: 1fr auto auto; }
.zk-touch .zk-shop-tabbtn, .zk-touch .zk-wc .buy, .zk-touch .zk-res-go { min-height: 40px; }
.zk-touch .zk-shop-tabbtn kbd, .zk-touch .zk-item kbd, .zk-touch .zk-wc kbd, .zk-touch .zk-res-go kbd, .zk-touch .zk-res-hint { display: none; }
.zk-touch .zk-shop-tabs { flex: 1; } .zk-touch .zk-shop-tabbtn { flex: 1; justify-content: center; padding-left: .3em; padding-right: .3em; }
.zk-touch .zk-wc { grid-template-columns: 6em 1fr; }
.zk-touch .zk-shop-go { min-height: 40px; }
.zk-touch .zk-shop-go kbd, .zk-touch .zk-btn kbd { display: none; }

/* ------------------------------------------------------------------ full-screen pages */
.zk-screens { position: absolute; inset: 0; visibility: hidden; }
.zk-screens.on { visibility: visible; pointer-events: auto; }
.zk-screen, .zk-panel { position: absolute; inset: 0; display: none; }
.zk-screen.on, .zk-panel.on { display: grid; place-items: center; animation: zk-fade .25s ease-out both; }
.zk-screens.sub .zk-screen .zk-card, .zk-screens.sub .zk-title-col { visibility: hidden; }

.zk-dochead { display: flex; justify-content: space-between; align-items: baseline; gap: 1em; font-family: var(--zk-serif); color: var(--zk-seal-hi); white-space: nowrap; }
.zk-dochead span { font-weight: 900; font-size: .95em; letter-spacing: .32em; }
.zk-dochead em { font-size: .7em; letter-spacing: .1em; opacity: .9; }
.zk-redrule { height: 7px; margin: .5em 0 1.1em; border-top: 3px solid var(--zk-seal); border-bottom: 1px solid var(--zk-seal); }

.zk-menu { display: flex; flex-direction: column; gap: .42em; }
.zk-menu.row { flex-direction: row; gap: .7em; }
.zk-ui .zk-btn { display: flex; align-items: center; gap: .2em; width: 100%; padding: .68em .9em .66em .9em; text-align: left; background: rgba(239,230,210,.055); border-left: 3px solid rgba(239,230,210,.28); transition: background .12s, border-color .12s, padding .14s; outline: none; white-space: nowrap; }
.zk-menu.row .zk-btn { width: auto; min-width: 12em; }
.zk-btn i { font: 900 1.05em var(--zk-serif); color: var(--zk-seal-hi); }
.zk-btn i::after { content: '、'; }
.zk-btn i.sym { margin-right: .6em; font-family: var(--zk-font); } .zk-btn i.sym::after { content: none; }
.zk-btn b { flex: 1; font: 900 1.15em var(--zk-serif); letter-spacing: .3em; }
.zk-btn:hover, .zk-btn:focus-visible { background: rgba(255,179,71,.16); border-left-color: var(--zk-amber); padding-left: 1.25em; }
.zk-ui .zk-btn.primary { background: var(--zk-amber); color: #15110a; border-left-color: #15110a; }
.zk-btn.primary i { color: #8f1d10; }
.zk-ui .zk-btn.primary kbd { color: #15110a; border-color: rgba(21,17,10,.6); background: rgba(21,17,10,.08); }
.zk-btn.primary:hover, .zk-btn.primary:focus-visible { background: #ffc66e; }
.zk-btn:focus-visible { box-shadow: 0 0 0 1px var(--zk-amber); }
.zk-btn.primary:focus-visible { box-shadow: 0 0 0 2px var(--zk-paper); }
.zk-btn.quiet b { font-weight: 700; color: var(--zk-dim); }

/* title: the establishing shot stays visible on the left, the order of the night is on the right */
.zk-title-scrim { position: absolute; inset: 0; background:
  linear-gradient(270deg, rgba(5,7,11,.96) 0%, rgba(5,7,11,.94) 34%, rgba(5,7,11,.86) 41%, rgba(5,7,11,.3) 53%, rgba(5,7,11,0) 67%),
  linear-gradient(0deg, rgba(5,7,11,.72) 0%, rgba(5,7,11,0) 24%),
  linear-gradient(180deg, rgba(5,7,11,.5) 0%, rgba(5,7,11,0) 16%); }
.zk-title-col { position: absolute; right: max(4.6em, calc(env(safe-area-inset-right) + 1.5em)); top: 50%; width: 25.5em; transform: translateY(-51%); text-shadow: 0 1px 3px rgba(0,0,0,.8); }
.zk-title-name { margin: 0; font: 900 4.85em/1.04 var(--zk-serif); letter-spacing: .05em; white-space: nowrap; text-shadow: 0 .04em .3em rgba(0,0,0,.7); }
.zk-title-name { display: flex; flex-direction: column; align-items: flex-start; width: 4.5em; }
.zk-brand { display: block; width: 100%; height: auto; aspect-ratio: 8000 / 2242; }
.zk-title-name .zk-fb { display: none; }
.zk-title-name .zk-gw { display: block; width: 100%; margin-top: .5em; font-size: .4em; letter-spacing: .62em; text-indent: .62em; text-align: center; }
.zk-title-name.zk-nologo .zk-brand { display: none; }
.zk-title-name.zk-nologo .zk-fb { display: inline; }
.zk-title-name.zk-nologo { width: auto; flex-direction: row; align-items: baseline; }
.zk-title-name.zk-nologo .zk-gw { width: auto; margin: 0; font-size: 1em; letter-spacing: .05em; text-indent: 0; }
.zk-title-time { display: flex; align-items: baseline; gap: 1em; margin-top: .85em; color: var(--zk-amber); }
.zk-title-time b { font: 700 1.5em/1 var(--zk-num); letter-spacing: .06em; }
.zk-title-time span { font: 700 .88em var(--zk-serif); letter-spacing: .36em; }
.zk-title-lede { margin: 1em 0 1.5em; font: 400 1em/1.95 var(--zk-fang); letter-spacing: .05em; color: rgba(239,230,210,.82); }
.zk-seal { position: absolute; right: -.4em; top: 7.5em; width: 4.3em; height: 4.3em; padding: .14em; display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr; color: var(--zk-seal-hi); border: .24em solid currentColor; border-radius: .28em; transform: rotate(-7deg); opacity: .92; text-shadow: none; }
.zk-seal span { display: grid; place-items: center; font: 900 1.62em/1 var(--zk-serif); }
.zk-title-foot { position: absolute; left: var(--pl); bottom: var(--pb); font-size: .7em; letter-spacing: .24em; color: var(--zk-dim); text-shadow: 0 1px 2px #000; }
.zk-live { display: inline-block; width: .6em; height: .6em; margin-right: .7em; border-radius: 50%; background: var(--zk-seal-hi); animation: zk-blink 1.6s steps(2, jump-none) infinite; }

/* cards: pause, the report, settings, controls */
.zk-pause, .zk-end, .zk-panel { background: radial-gradient(ellipse 80% 80% at 50% 50%, rgba(5,7,11,.66), rgba(5,7,11,.86)); }
.zk-card { position: relative; width: min(27em, 94vw); max-height: calc(100vh - 1.2em); overflow: auto; padding: 1.5em 1.7em 1.6em; background: linear-gradient(180deg, rgba(16,19,26,.97), rgba(10,12,17,.97)); box-shadow: 0 1.6em 4em rgba(0,0,0,.6), inset 0 0 0 1px rgba(239,230,210,.1); }
.zk-card.wide { width: min(52em, 95vw); }
.zk-settings .zk-card { width: min(34em, 94vw); }
.zk-card-title { margin: 0 0 .25em; font: 900 2.6em/1.15 var(--zk-serif); letter-spacing: .2em; }
.zk-pause-status { display: flex; gap: 1.5em; margin: .2em 0 1.3em; font-size: .8em; letter-spacing: .14em; color: var(--zk-dim); white-space: nowrap; }

.zk-end-grid { display: grid; grid-template-columns: 1fr 1.08fr; gap: 2.4em; margin-bottom: 1.4em; align-items: start; }
.zk-end-text { margin: .5em 0 1.2em; font: 400 1em/1.85 var(--zk-fang); letter-spacing: .05em; color: rgba(239,230,210,.82); }
.zk-end[data-result="won"] .zk-end-title { color: #ffe3ae; }
.zk-end[data-result="lost"] .zk-end-title { color: #ff8672; }
.zk-grade { display: flex; align-items: center; gap: 1.1em; }
.zk-grade svg { flex: none; width: 8.6em; height: 8.6em; transform: rotate(-8deg); overflow: visible; }
.zk-end.on .zk-grade svg { animation: zk-seal-in .45s .3s cubic-bezier(.2,1.4,.4,1) both; }
.zk-grade .ring { fill: none; stroke: var(--zk-seal-hi); stroke-width: 6; }
.zk-grade .ring.thin { stroke-width: 1.6; }
.zk-grade text { fill: var(--zk-seal-hi); font-family: var(--zk-serif); font-weight: 900; }
.zk-grade .arc { font-size: 19px; letter-spacing: 7px; }
.zk-grade .glyph { font-size: 78px; }
.zk-grade .tier { font-size: 19px; letter-spacing: 2px; }
.zk-grade-cap b { display: block; font: 900 1.25em/1.3 var(--zk-serif); letter-spacing: .16em; white-space: nowrap; }
.zk-grade-cap span { display: block; margin-top: .4em; font-size: .72em; line-height: 1.6; color: var(--zk-dim); }
.zk-stats { width: 100%; border-collapse: collapse; }
.zk-stats th { padding: .52em 0 .46em; text-align: left; font: 400 .9em var(--zk-serif); letter-spacing: .24em; color: var(--zk-dim); border-bottom: 1px solid rgba(239,230,210,.14); }
.zk-stats td { text-align: right; border-bottom: 1px solid rgba(239,230,210,.14); white-space: nowrap; }
.zk-stats td b { font: 700 1.4em/1 var(--zk-num); }
.zk-stats td i { margin-left: .3em; font-size: .72em; color: var(--zk-dim); }
.zk-score { display: flex; justify-content: space-between; align-items: baseline; margin-top: .75em; }
.zk-score em { font: 900 .95em var(--zk-serif); letter-spacing: .3em; }
.zk-score b { font: 700 2.9em/1 var(--zk-num); color: var(--zk-amber); }

.zk-rows { margin: -.3em 0 1.4em; }
.zk-row { display: grid; grid-template-columns: 8.2em 1fr 6.4em; align-items: center; gap: 1.1em; padding: .62em 0; border-bottom: 1px solid rgba(239,230,210,.12); }
.zk-row label { font: 900 1em var(--zk-serif); letter-spacing: .2em; white-space: nowrap; }
.zk-row output { text-align: right; font: 700 1.05em var(--zk-num); color: var(--zk-amber); white-space: nowrap; }
.zk-row[data-key="quality"] output, .zk-row[data-key="invertY"] output, .zk-row[data-key="autoFire"] output, .zk-row[data-key="aimAssist"] output, .zk-row[data-key="leftHanded"] output { font: 400 .7em var(--zk-font); letter-spacing: .06em; color: var(--zk-dim); }
.zk-seg { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; }
.zk-seg.two { grid-template-columns: repeat(2, 1fr); }
.zk-ui .zk-seg button { padding: .5em 0 .46em; background: rgba(239,230,210,.08); font-weight: 600; letter-spacing: .2em; text-indent: .2em; outline: none; transition: background .12s; }
.zk-seg button:hover { background: rgba(255,179,71,.2); }
.zk-ui .zk-seg button.on { background: var(--zk-amber); color: #15110a; }
.zk-seg button:focus-visible { box-shadow: 0 0 0 2px var(--zk-paper); }
.zk-ui input[type="range"] { -webkit-appearance: none; appearance: none; width: 100%; height: 1.8em; margin: 0; background: transparent; outline: none; --p: 50%; cursor: pointer; pointer-events: auto; font-size: inherit; }
.zk-ui input[type="range"]::-webkit-slider-runnable-track { height: .3em; background: linear-gradient(90deg, var(--zk-amber) 0 var(--p), rgba(239,230,210,.2) var(--p) 100%); }
.zk-ui input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: .7em; height: 1.5em; margin-top: -.6em; background: var(--zk-paper); border: 0; border-radius: 0; box-shadow: 0 0 0 1px rgba(7,9,13,.8); }
.zk-ui input[type="range"]:focus-visible::-webkit-slider-thumb { background: #fff; box-shadow: 0 0 0 2px var(--zk-amber); }
.zk-ui input[type="range"]::-moz-range-track { height: .3em; background: linear-gradient(90deg, var(--zk-amber) 0 var(--p), rgba(239,230,210,.2) var(--p) 100%); }
.zk-ui input[type="range"]::-moz-range-thumb { width: .7em; height: 1.5em; background: var(--zk-paper); border: 0; border-radius: 0; }

.zk-keys { display: grid; grid-template-columns: 1fr 1.32fr 1.3fr; gap: 1.8em; margin-bottom: 1.4em; }
.zk-controls .zk-card.wide { width: min(58em, 96vw); }
.zk-keys dd { white-space: nowrap; }
.zk-keys h3 { margin: 0 0 .7em; padding-bottom: .4em; font: 900 .92em var(--zk-serif); letter-spacing: .3em; color: var(--zk-amber); border-bottom: 1px solid rgba(239,230,210,.14); }
.zk-keys dl { display: grid; grid-template-columns: auto 1fr; gap: .5em 1em; align-items: center; margin: 0 0 1.3em; font-size: .86em; }
.zk-keys dl:last-child { margin-bottom: 0; }
.zk-keys dt { white-space: nowrap; }
.zk-keys dt kbd + kbd { margin-left: .18em; }
.zk-keys dd { margin: 0; letter-spacing: .06em; color: rgba(239,230,210,.86); }
.zk-keys ol { margin: 0; padding-left: 1.4em; font: 400 .9em/1.8 var(--zk-fang); letter-spacing: .04em; color: rgba(239,230,210,.82); }
.zk-keys ol li { margin-bottom: .5em; }
.zk-keys ol b { color: var(--zk-paper); font-weight: 700; }

/* phone mode is landscape only: in portrait a full-screen notice covers everything (input pauses the game) */
.zk-rotate { display: none; }
@media (orientation: portrait) {
  body.zk-mobile .zk-rotate { display: grid; position: fixed; inset: 0; z-index: 40; place-content: center; justify-items: center; gap: 14px; padding: 24px; text-align: center; background: radial-gradient(120% 90% at 50% 40%, #131a26 0%, #05070b 70%); visibility: visible; pointer-events: auto; }
  .zk-rotate-ico { width: 40px; height: 68px; margin-bottom: 18px; border: 2px solid var(--zk-paper); border-radius: 7px; box-shadow: inset 0 -9px 0 -7px var(--zk-paper), inset 0 0 0 4px rgba(239,230,210,.06); animation: zk-rotate 2.4s cubic-bezier(.5,0,.3,1) infinite; }
  .zk-rotate b { font: 900 24px var(--zk-serif); letter-spacing: .32em; text-indent: .32em; }
  .zk-rotate b::after { content: ''; display: block; width: 100%; height: 7px; margin-top: 12px; border-top: 3px solid var(--zk-seal); border-bottom: 1px solid var(--zk-seal); }
  .zk-rotate span { font-size: 13px; line-height: 1.7; letter-spacing: .16em; color: var(--zk-amber); }
}

/* ------------------------------------------------------------------ short screens (phones in landscape) */
@media (max-height: 520px) {
  .zk-map { width: 13.6em; }
  .zk-feed { top: calc(var(--pt) + 8.7em); }
  .zk-core { width: 21em; margin-left: -10.5em; }
  .zk-banner { top: 21%; }
  .zk-banner-main { font-size: 2.9em; }
  .zk-shop { top: calc(var(--pt) + 3.2em); }
  .zk-shop-body { max-height: calc(100vh - var(--pt) - var(--pb) - 3.2em); padding: .5em .7em .5em; }
  .zk-shop-next { margin: .3em 0 0; padding-top: .2em; padding-bottom: .22em; } .zk-shop-next span { display: none; }
  .zk-shop-bar { margin: .3em 0 .35em; }
  .zk-shop-foot { margin-top: .4em; }
  .zk-shop-title span { font-size: 1.1em; } .zk-shop-clock b { font-size: 1.5em; }
  .zk-ui .zk-shop-tabbtn { padding: .3em .8em; }
  .zk-hud.docked .zk-ammo { right: calc(var(--pr) + 46em); }
  .zk-res-card { padding: .6em 1em .7em; } .zk-res-top { margin: .4em 0; } .zk-res-stars i { width: 2.6em; height: 2.6em; } .zk-res-verdict b { font-size: 1.2em; margin-bottom: .1em; }
  .zk-res-cols { padding-top: .4em; gap: .8em; } .zk-res-foot { margin-top: .3em; padding: .3em 0 .1em; }
  /* phone: everything of the results (战果 / 支线 / 奖励 / 新解锁 / 新获勋章) fits above the button without scrolling */
  .zk-res-cols ul { line-height: 1.42; } .zk-res-cols ul.unl { gap: .15em .8em; } .zk-res-cols ul.unl img { width: 3.6em; } .zk-res-cols ul.unl .modeico, .zk-res-cols ul.unl .seal { width: 1.8em; height: 1.8em; font-size: 1em; }
  .zk-res-cols ul.unl li span em { line-height: 1.25; } .zk-res-cols h4 { margin-bottom: .2em; } .zk-res-checks li { line-height: 1.4; }
  .zk-title-col { right: max(2.6em, calc(env(safe-area-inset-right) + 1em)); width: 24em; }
  .zk-title-name { font-size: 4.2em; }
  .zk-title-lede { margin: .7em 0 1em; line-height: 1.75; }
  .zk-seal { top: 6.4em; }
  .zk-ui .zk-btn { padding-top: .58em; padding-bottom: .56em; }
  .zk-card { padding: 1.1em 1.4em 1.2em; }
  .zk-card-title { font-size: 2.1em; }
  .zk-pause .zk-menu { display: grid; grid-template-columns: 1fr 1fr; }
  .zk-pause .zk-menu .primary { grid-column: 1 / -1; }
  .zk-pause .zk-card { width: min(34em, 94vw); }
  .zk-redrule { margin-bottom: .8em; }
  .zk-row { padding: .42em 0; }
  .zk-end-grid { margin-bottom: 1em; }
  .zk-stats th { padding: .36em 0 .32em; }
  .zk-grade svg { width: 6.4em; height: 6.4em; }
}
@media (pointer: coarse) {
  .zk-ui .zk-btn, .zk-ui .zk-seg button { min-height: 40px; }
}

/* ================================================================== EXPANSION: arsenal, emplacement, airdrops, saves, phone mode */

/* ---- radar takes the plan's place at the emplacement */
.zk-map .zk-radar-cv { display: none; }
.zk-hud[data-mode="fortress"] .zk-map .zk-map-cv { display: none; }
.zk-hud[data-mode="fortress"] .zk-map .zk-radar-cv { display: block; }
.zk-hud[data-mode="fortress"] .zk-feed { top: calc(var(--pt) + 12em); }
.zk-map-key { white-space: nowrap; }
.zk-map-room { white-space: nowrap; }

/* ---- the second thing being defended (vault ⇄ 律所防线), and the machine under the crosshair */
.zk-core-sub { display: none; justify-content: flex-end; align-items: baseline; gap: .7em; margin-top: .3em; }
.zk-core-sub.on { display: flex; }
.zk-core-sub em { font-size: .66em; }
.zk-core-sub b { font: 700 .95em/1 var(--zk-num); color: var(--zk-brass); }
.zk-core-sub.low b { color: var(--zk-seal-hi); animation: zk-blink .8s steps(2, jump-none) infinite; }
.zk-tinfo { display: none; align-items: center; gap: .8em; margin-top: .55em; }
.zk-tinfo.on { display: flex; }
.zk-tinfo b { font: 900 .82em var(--zk-serif); letter-spacing: .24em; color: #ff8672; white-space: nowrap; }
.zk-tinfo b::before { content: '◆ '; font-size: .8em; }
.zk-tinfo[data-kind="air"] b::before { content: '▲ '; }
.zk-tinfo .zk-bar { flex: 1; height: .32em; --bar: linear-gradient(90deg, #b3210f, #ff5a44); }
.zk-hud[data-mode="fortress"] .zk-core-bar { --bar: linear-gradient(90deg, #c9a45c, #f4e3b7); }
.zk-hud[data-mode="fortress"] .zk-core[data-level="warn"] .zk-core-bar { --bar: linear-gradient(90deg, #e2661f, #ff9a3c); }
.zk-hud[data-mode="fortress"] .zk-core[data-level="crit"] .zk-core-bar { --bar: linear-gradient(90deg, #c92a18, #ff5a44); }

/* ---- stage line: play-style tag, rooftop stages capped in red on the pips */
.zk-style { font: 700 .64em var(--zk-serif); letter-spacing: .3em; padding: .16em .3em .13em .6em; color: var(--zk-amber); border: 1px solid currentColor; text-shadow: none; align-self: center; }
.zk-style:empty { display: none; }
.zk-hud[data-mode="fortress"] .zk-style { color: #15110a; background: var(--zk-amber); border-color: var(--zk-amber); }
.zk-pips i.fort { box-shadow: 0 -.26em 0 0 var(--zk-seal-hi), 0 0 0 1px rgba(7,9,13,.5); }

/* ---- weapon read-out: name line; mounted weapons reuse it (heat / loader gauge) */
.zk-ammo-name { margin-bottom: .34em; font: 900 .8em var(--zk-serif); letter-spacing: .2em; white-space: nowrap; color: rgba(239,230,210,.86); transition: color .6s; }
.zk-ammo.swap .zk-ammo-name { color: var(--zk-amber); transition: none; }
.zk-ammo[data-kind="heat"] .zk-ammo-num i, .zk-ammo[data-kind="heat"] .zk-ammo-num span { display: none; }
.zk-ammo[data-kind="heat"] .zk-mag-bar, .zk-ammo[data-kind="mount"] .zk-mag-bar { height: .5em; }
.zk-ammo[data-kind="heat"] .zk-mag-bar > .fill, .zk-ammo[data-kind="mount"] .zk-mag-bar > .fill { transform-origin: 0 50%; }
.zk-ammo[data-kind="heat"] .zk-mag-bar { --bar: linear-gradient(90deg, #ffd27f, #ff9a3c 62%, #ff4a34); }
.zk-ammo[data-kind="heat"] .zk-mag-bar > u { display: none; }
.zk-ammo[data-kind="heat"][data-level="empty"] .zk-mag-bar > .fill { animation: zk-blink .35s steps(2, jump-none) infinite; }
.zk-ammo[data-kind="mount"] .zk-mag-bar > u { display: none; }
.zk-ammo[data-kind="mount"] .zk-ammo-num span:empty { display: none; }
.zk-ammo[data-kind="mount"].reloading .zk-mag-bar { --bar: var(--zk-amber); }

/* ---- weapon bar (hud/wbar.js; also hosted by the touch layer) */
.zk-wbar { position: absolute; right: calc(var(--pr) + 12.7em); bottom: var(--pb); display: flex; gap: .3em; text-shadow: none; transition: right .3s cubic-bezier(.2,.8,.2,1); }
.zk-wslot { position: relative; display: grid; grid-template-columns: auto auto; grid-template-rows: auto auto; column-gap: .45em; align-items: center; justify-content: start; min-width: 4.9em; padding: .3em .55em .46em .42em; background: rgba(10,12,17,.74); border-top: 2px solid rgba(239,230,210,.24); color: rgba(239,230,210,.66); }
.zk-wslot kbd { grid-row: 1 / 3; font: 700 .72em/1.35 var(--zk-num); min-width: 1.5em; padding: .1em .3em .06em; text-align: center; color: inherit; background: rgba(239,230,210,.08); border: 1px solid rgba(239,230,210,.34); border-bottom-width: 2px; border-radius: .22em; }
.zk-wslot b { font: 900 .76em/1.2 var(--zk-serif); letter-spacing: .14em; white-space: nowrap; }
.zk-wslot span { font: 700 .74em/1.1 var(--zk-num); letter-spacing: .02em; white-space: nowrap; color: var(--zk-dim); }
.zk-wslot > i { position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: rgba(239,230,210,.12); overflow: hidden; }
.zk-wslot > i u { display: block; height: 100%; background: rgba(239,230,210,.7); transform-origin: 0 50%; text-decoration: none; }
.zk-wslot[data-state~="cur"] { background: rgba(255,179,71,.2); border-top-color: var(--zk-amber); color: var(--zk-paper); }
.zk-wslot[data-state~="cur"] b { color: var(--zk-amber); }
.zk-wslot[data-state~="cur"] span { color: var(--zk-paper); }
.zk-wslot[data-state~="cur"] > i u { background: var(--zk-amber); }
.zk-wslot[data-state~="off"] { opacity: .36; }
.zk-wslot[data-state~="off"] b { text-decoration: line-through; text-decoration-color: var(--zk-seal-hi); }
.zk-wslot[data-state~="empty"] span { color: var(--zk-seal-hi); }
.zk-wslot[data-state~="hot"] b, .zk-wslot[data-state~="hot"] span { color: var(--zk-seal-hi); }
.zk-wslot[data-state~="hot"] > i u { background: var(--zk-seal-hi); }
.zk-wslot[data-state~="lent"] b::after { content: '借'; margin-left: .4em; padding: 0 .2em; font-size: .8em; letter-spacing: 0; color: var(--zk-seal-hi); border: 1px solid currentColor; }
.zk-wbar[data-mode="fortress"] .zk-wslot > i { height: 3px; }
.zk-hud.docked .zk-wbar { opacity: 0; visibility: hidden; }           /* the requisition list needs the room */
/* in the touch layer: big enough for a thumb, no key caps */
.zk-wbar.touch { right: auto; left: 50%; bottom: calc(env(safe-area-inset-bottom, 0px) + var(--u) * 10.2); transform: translateX(-50%); gap: calc(var(--u) * .8); font-size: max(11px, calc(var(--u) * 2.05)); transition: none; }
.zk-wbar.touch .zk-wslot { grid-template-columns: auto; justify-content: center; justify-items: center; min-width: calc(var(--u) * 9.6); min-height: calc(var(--u) * 7); padding: .34em .5em .5em; border-top-width: 2px; }
.zk-wbar.touch .zk-wslot kbd { display: none; }
.zk-wbar.touch .zk-wslot b { font-family: var(--zk-serif); }
.zk-wbar.touch .zk-wslot.held { transform: scale(.94); }

/* ---- reticles of the mounted weapons, heat under the crosshair */
.zk-ret { position: absolute; left: 0; top: 0; }
.zk-ret i { display: none; position: absolute; }
.zk-center[data-ret="cannon"] .zk-ret .lad { display: block; left: -.8em; top: .95em; width: 1.6em; height: 3.3em; opacity: .85; filter: drop-shadow(0 0 1px #000);
  background: linear-gradient(#fff, #fff) 50% 0 / 2px 100% no-repeat, linear-gradient(#fff, #fff) 50% 30% / 1.3em 2px no-repeat, linear-gradient(#fff, #fff) 50% 62% / .95em 2px no-repeat, linear-gradient(#fff, #fff) 50% 96% / .6em 2px no-repeat; }
.zk-center[data-ret="sam"] .zk-ret i:not(.lad) { display: block; width: .7em; height: .7em; border: 2px solid #fff; filter: drop-shadow(0 0 1px #000); }
.zk-ret .c1 { left: -1.9em; top: -1.9em; border-right: 0 !important; border-bottom: 0 !important; }
.zk-ret .c2 { left: 1.2em; top: -1.9em; border-left: 0 !important; border-bottom: 0 !important; }
.zk-ret .c3 { left: 1.2em; top: 1.2em; border-left: 0 !important; border-top: 0 !important; }
.zk-ret .c4 { left: -1.9em; top: 1.2em; border-right: 0 !important; border-top: 0 !important; }
.zk-center[data-ret="scope"] .zk-cross i:not(.dot) { opacity: 0; }
.zk-center[data-ret="scope"] .zk-cross .dot { background: var(--zk-seal-hi); width: 4px; height: 4px; left: -2px; top: -2px; border-radius: 50%; }
.zk-heat { position: absolute; left: -2.7em; top: 2em; width: 5.4em; height: .3em; background: rgba(7,9,13,.62); box-shadow: 0 0 0 1px rgba(7,9,13,.5); opacity: 0; transition: opacity .2s; overflow: hidden; }
.zk-heat.on { opacity: 1; }
.zk-heat i { position: absolute; inset: 0; transform-origin: 0 50%; background: linear-gradient(90deg, #ffd27f, #ff9a3c 62%, #ff4a34); will-change: transform; }
.zk-heat.hot { box-shadow: 0 0 0 1px var(--zk-seal-hi); }
.zk-heat.hot i { animation: zk-blink .35s steps(2, jump-none) infinite; }
.zk-hud[data-mode="fortress"] .zk-hint { top: 5.1em; }

/* ---- sniper scope */
.zk-scope { position: absolute; inset: 0; display: none; background: radial-gradient(circle at 50% 50%, rgba(0,0,0,0) 0, rgba(0,0,0,0) 43.2vh, rgba(0,0,0,.5) 43.8vh, #000 45vh); }
.zk-scope.on { display: block; }
.zk-scope .h { position: absolute; left: calc(50% - 44vh); width: 88vh; top: calc(50% - 1px); height: 2px; background: linear-gradient(90deg, #000 0 8%, rgba(0,0,0,.85) 8% 44%, rgba(0,0,0,0) 44% 56%, rgba(0,0,0,.85) 56% 92%, #000 92%); }
.zk-scope .v { position: absolute; top: calc(50% - 44vh); height: 88vh; left: calc(50% - 1px); width: 2px; background: linear-gradient(180deg, #000 0 8%, rgba(0,0,0,.85) 8% 44%, rgba(0,0,0,0) 44% 56%, rgba(0,0,0,.85) 56% 92%, #000 92%); }
.zk-scope .ring { position: absolute; left: 50%; top: 50%; width: 87vh; height: 87vh; margin: -43.5vh 0 0 -43.5vh; border-radius: 50%; box-shadow: inset 0 0 0 2px rgba(0,0,0,.9), inset 0 0 9vh 1vh rgba(0,0,0,.55);
  background: radial-gradient(circle, rgba(0,0,0,.8) 0 1.5px, rgba(0,0,0,0) 2px) 50% calc(50% + 6vh) / 100% 100% no-repeat, radial-gradient(circle, rgba(0,0,0,.8) 0 1.5px, rgba(0,0,0,0) 2px) 50% calc(50% + 12vh) / 100% 100% no-repeat, radial-gradient(circle, rgba(0,0,0,.8) 0 1.5px, rgba(0,0,0,0) 2px) 50% calc(50% + 18vh) / 100% 100% no-repeat; }
.zk-hud.scoped .zk-wbar, .zk-hud.scoped .zk-map, .zk-hud.scoped .zk-feed, .zk-hud.scoped .zk-vitals, .zk-hud.scoped .zk-ammo { opacity: .55; }
.zk-center[data-ret="pane"] .zk-cross i:not(.dot), .zk-center[data-ret="none"] .zk-cross i { opacity: 0; }
.zk-center[data-ret="pane"] .zk-cross .dot { opacity: .0; }

/* ---- markers: supply crates, incoming rounds, the missile seeker */
.zk-mark.crate { color: #7ee0a0; }
.zk-mark.crate .ico::before { content: ''; position: absolute; left: 50%; top: 12%; width: 2px; height: 76%; margin-left: -1px; background: currentColor; }
.zk-mark.crate .ico::after { left: 12%; top: 50%; width: 76%; height: 2px; margin: -1px 0 0 0; }
.zk-mark.crate::before, .zk-mark.shell::before { content: attr(data-label); position: absolute; left: 0; bottom: .9em; transform: translateX(-50%); margin-left: .13em; font: 700 .68em/1 var(--zk-serif); letter-spacing: .26em; white-space: nowrap; }
.zk-mark.crate.pin::before, .zk-mark.shell.pin::before { bottom: auto; top: 2.35em; }
.zk-mark.crate[data-kind="falling"] .ico { animation: zk-ping-g .9s ease-out infinite; }
.zk-mark.crate[data-kind="last"] { animation: zk-blink .5s steps(2, jump-none) infinite; }
.zk-mark.shell { color: var(--zk-amber); }
.zk-mark.shell .ico { transform: rotate(45deg) scale(.72); }
.zk-mark.shell[data-kind="seat"] { color: var(--zk-seal-hi); }
.zk-mark.shell[data-kind="seat"] .ico { animation: zk-ping .5s ease-out infinite; }
.zk-mark.shell b { font-size: .7em; }
.zk-lock { position: absolute; left: 0; top: 0; display: none; --s: 1.9; color: var(--zk-amber); will-change: transform; text-shadow: 0 0 3px #000, 0 1px 2px #000; }
.zk-lock.on { display: block; }
.zk-lock i { position: absolute; left: -2.3em; top: -2.3em; width: 4.6em; height: 4.6em; transform: scale(var(--s)); transition: transform .08s linear; filter: drop-shadow(0 0 2px rgba(0,0,0,.9));
  background:
    linear-gradient(currentColor, currentColor) 0 0 / 1.1em 2px no-repeat, linear-gradient(currentColor, currentColor) 0 0 / 2px 1.1em no-repeat,
    linear-gradient(currentColor, currentColor) 100% 0 / 1.1em 2px no-repeat, linear-gradient(currentColor, currentColor) 100% 0 / 2px 1.1em no-repeat,
    linear-gradient(currentColor, currentColor) 0 100% / 1.1em 2px no-repeat, linear-gradient(currentColor, currentColor) 0 100% / 2px 1.1em no-repeat,
    linear-gradient(currentColor, currentColor) 100% 100% / 1.1em 2px no-repeat, linear-gradient(currentColor, currentColor) 100% 100% / 2px 1.1em no-repeat; }
.zk-lock b { position: absolute; left: 0; top: 2.9em; transform: translateX(-50%); margin-left: .15em; font: 900 .72em/1 var(--zk-serif); letter-spacing: .3em; white-space: nowrap; }
.zk-lock.locked { color: var(--zk-seal-hi); }
.zk-lock.locked i { box-shadow: inset 0 0 0 2px currentColor; animation: zk-blink .25s steps(2, jump-none) infinite; }

/* ---- feed kinds */
.zk-toast.gain { border-left-color: #7ee0a0; color: #d4f7df; }
.zk-toast.drop { border-left: .45em solid var(--zk-brass); color: var(--zk-brass); }
.zk-toast.save { border-left-color: var(--zk-moon); color: #d5e2fa; }

/* ---- title / pause / report additions */
.zk-ui .zk-btn[hidden] { display: none; }
.zk-btn em { font: 400 .72em var(--zk-font); letter-spacing: .08em; opacity: .82; white-space: nowrap; }
.zk-btn.primary em { opacity: .9; font-weight: 600; }
.zk-ui .zk-btn.ask { background: rgba(207,58,40,.3); border-left-color: var(--zk-seal-hi); }
.zk-btn.ask em { color: #ffd9d2; opacity: 1; }
.zk-pause-note { margin: 1em 0 0; font: 400 .76em/1.7 var(--zk-fang); letter-spacing: .05em; color: var(--zk-dim); }
.zk-pause-note:empty { display: none; }
.zk-pause-status { flex-wrap: wrap; row-gap: .3em; }
.zk-row.touch-only { display: none; }
.zk-touch .zk-row.touch-only, body.zk-mobile .zk-row.touch-only { display: grid; }
.zk-keys dd kbd { margin: 0 .2em 0 .5em; }
.zk-keys dt { font-size: .96em; letter-spacing: .06em; }

/* ---- phone mode: no browser gestures anywhere; lists and cards scroll on their own */
body.zk-mobile { position: fixed; inset: 0; touch-action: none; -webkit-touch-callout: none; }
body.zk-mobile .zk-shop-body, body.zk-mobile .zk-card { touch-action: pan-y; overscroll-behavior: contain; -webkit-overflow-scrolling: touch; }
body.zk-mobile .zk-ui input[type="range"] { touch-action: none; height: 2.6em; }
body.zk-mobile .zk-ui .zk-btn, body.zk-mobile .zk-ui .zk-seg button { min-height: 40px; }
body.zk-mobile .zk-card { max-height: calc(100dvh - 1.2em); }
body.zk-mobile .zk-shop-body { max-height: calc(100dvh - var(--pt) - var(--pb) - 4.7em); }
body.zk-mobile .zk-title-lede br { display: none; }

@media (max-height: 520px) {
  .zk-hud[data-mode="fortress"] .zk-feed { top: calc(var(--pt) + 10.6em); }
  .zk-title .zk-menu { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .zk-title .zk-menu .primary { grid-column: 1 / -1; }
  .zk-title .zk-menu .zk-btn:not(.primary):not(.ask) em { display: none; }
  .zk-title .zk-menu .zk-btn.ask { grid-column: 1 / -1; }
  .zk-title .zk-menu .zk-wide { display: none; }
  .zk-title-lede { font-size: .9em; }
  .zk-title-scrim { background:
    linear-gradient(270deg, rgba(5,7,11,.96) 0%, rgba(5,7,11,.94) 46%, rgba(5,7,11,.86) 53%, rgba(5,7,11,.3) 64%, rgba(5,7,11,0) 76%),
    linear-gradient(0deg, rgba(5,7,11,.72) 0%, rgba(5,7,11,0) 24%),
    linear-gradient(180deg, rgba(5,7,11,.5) 0%, rgba(5,7,11,0) 16%); }
  .zk-settings .zk-card { width: min(60em, 96vw); }
  .zk-rows { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); column-gap: 2.2em; margin-bottom: 1em; }
  .zk-row { grid-template-columns: 6.6em 1fr 3.6em; gap: .8em; }
  .zk-row[data-key="quality"], .zk-row[data-key="invertY"], .zk-row[data-key="autoFire"], .zk-row[data-key="aimAssist"], .zk-row[data-key="leftHanded"] { grid-template-columns: 6.6em 1fr; }
  .zk-row[data-key="quality"] output, .zk-row[data-key="invertY"] output, .zk-row[data-key="autoFire"] output, .zk-row[data-key="aimAssist"] output, .zk-row[data-key="leftHanded"] output { display: none; }
  body.zk-mobile .zk-keys { grid-template-columns: 1fr 1.05fr; }
  body.zk-mobile .zk-keys-col:first-child, body.zk-mobile .zk-keys .kb-only { display: none; }
  body.zk-mobile .zk-controls .zk-card.wide { width: min(50em, 96vw); }
  .zk-pause .zk-menu .quiet { grid-column: auto; }
  .zk-pause-note { margin-top: .7em; }
  .zk-keys { gap: 1.4em; }
  .zk-keys dl { gap: .34em .8em; margin-bottom: .9em; }
  .zk-end .zk-menu.row .zk-btn { min-width: 9em; }
}

/* ------------------------------------------------------------------ keyframes */
@keyframes zk-ping-g { 0% { box-shadow: 0 0 0 0 rgba(126,224,160,.9); } 100% { box-shadow: 0 0 0 .9em rgba(126,224,160,0); } }
@keyframes zk-rotate { 0%, 18% { transform: rotate(0); } 55%, 100% { transform: rotate(-90deg); } }
@keyframes zk-fade { from { opacity: 0; } to { opacity: 1; } }
@keyframes zk-blink { 0% { opacity: 1; } 100% { opacity: .35; } }
@keyframes zk-ping { 0% { box-shadow: 0 0 0 0 rgba(255,90,68,.9); } 100% { box-shadow: 0 0 0 .9em rgba(255,90,68,0); } }
@keyframes zk-breathe { 0%, 100% { opacity: .25; } 50% { opacity: 1; } }
@keyframes zk-hazard { from { background-position: 0 0; } to { background-position: 1.2728em 0; } }
@keyframes zk-toast-in { from { opacity: 0; transform: translateX(-.8em); } to { opacity: 1; transform: none; } }
@keyframes zk-rule { from { transform: scaleX(0); } to { transform: scaleX(1); } }
@keyframes zk-stamp { from { opacity: 0; transform: rotate(-11deg) scale(2.2); } to { opacity: 1; transform: rotate(-11deg) scale(1); } }
@keyframes zk-seal-in { from { opacity: 0; transform: rotate(-8deg) scale(1.9); } to { opacity: 1; transform: rotate(-8deg) scale(1); } }
@keyframes zk-shake { 0%, 100% { transform: translateX(0); } 25% { transform: translateX(-.3em); } 75% { transform: translateX(.3em); } }
@keyframes zk-shake-c { 0%, 100% { transform: translateX(-50%); } 25% { transform: translateX(calc(-50% - .3em)); } 75% { transform: translateX(calc(-50% + .3em)); } }
@keyframes zk-bought { 0% { background: rgba(255,214,140,.75); } 100% { background: rgba(239,230,210,.06); } }
@media (prefers-reduced-motion: reduce) { .zk-ui *, .zk-ui *::before, .zk-ui *::after { animation-duration: .01s !important; animation-iteration-count: 1 !important; } }

/* ------------------------------------------------------------------ quiz: 值守律师问答 (src/hud/quiz.js), the firm line on the report */
.zk-quiz { position: absolute; inset: 0; display: none; place-items: center; background: radial-gradient(ellipse 80% 80% at 50% 50%, rgba(5,7,11,.62), rgba(5,7,11,.86)); }
.zk-quiz.on { display: grid; animation: zk-fade .25s ease-out both; }
#ui.zk-quizzing .zk-radio { display: none; }
.zk-quiz-card { width: min(41em, 94vw); }
.zk-quiz-meta { display: flex; align-items: center; gap: 1em; margin: -.25em 0 .85em; font-size: .8em; letter-spacing: .12em; color: var(--zk-dim); white-space: nowrap; }
.zk-quiz-kind { padding: .18em .5em .14em .74em; font: 900 1em var(--zk-serif); letter-spacing: .24em; color: #15110a; background: var(--zk-brass); }
.zk-quiz-kind[data-type="scope"] { color: #fff; background: var(--zk-seal); }
.zk-quiz-streak { font-weight: 700; color: var(--zk-amber); }
.zk-quiz-streak:empty { display: none; }
.zk-quiz-rule { margin-left: auto; font-style: normal; }
.zk-quiz-text { margin: 0 0 .9em; min-height: 3.1em; font: 700 1.42em/1.55 var(--zk-serif); letter-spacing: .04em; color: #fff4dc; }
.zk-quiz-ans { display: grid; grid-template-columns: 1fr 1fr; gap: .8em; }
.zk-ui .zk-quiz-opt { position: relative; display: flex; align-items: center; justify-content: center; gap: .7em; min-height: max(3.7em, 46px); padding: .4em 1em; background: rgba(239,230,210,.07); border: 1px solid rgba(239,230,210,.32); border-bottom-width: 3px; outline: none; transition: background .12s, border-color .12s, opacity .12s; }
.zk-quiz-opt b { font: 900 2em/1 var(--zk-serif); }
.zk-quiz-opt em { position: absolute; right: .8em; top: .5em; font: 700 .68em var(--zk-font); letter-spacing: .1em; }
.zk-quiz-opt:not(:disabled):hover, .zk-quiz-opt:not(:disabled):focus-visible { background: rgba(255,179,71,.18); border-color: var(--zk-amber); }
.zk-ui .zk-quiz-opt:disabled { cursor: default; opacity: .4; }
.zk-ui .zk-quiz-opt.right { opacity: 1; color: #d4f7df; border-color: #7ee0a0; background: rgba(126,224,160,.14); }
.zk-ui .zk-quiz-opt.wrong { opacity: 1; color: #ffd9d2; border-color: var(--zk-seal-hi); background: rgba(255,90,68,.14); }
.zk-quiz-opt:disabled kbd { display: none; }
.zk-quiz-fb { display: none; margin-top: .9em; padding: .65em .95em .6em; border-left: 3px solid #7ee0a0; background: rgba(239,230,210,.05); }
.zk-quiz[data-phase="done"] .zk-quiz-fb { display: block; animation: zk-fade .2s ease-out both; }
.zk-quiz[data-result="wrong"] .zk-quiz-fb { border-left-color: var(--zk-seal-hi); }
.zk-quiz-verdict { display: flex; align-items: baseline; gap: 1em; white-space: nowrap; }
.zk-quiz-verdict b { font: 900 1.2em var(--zk-serif); letter-spacing: .2em; color: #7ee0a0; }
.zk-quiz[data-result="wrong"] .zk-quiz-verdict b { color: #ff8672; }
.zk-quiz-verdict span { font-size: .82em; letter-spacing: .08em; color: var(--zk-amber); }
.zk-quiz-explain { margin: .4em 0 0; font: 400 1em/1.7 var(--zk-fang); letter-spacing: .04em; color: var(--zk-paper); }
.zk-quiz-explain i { margin-right: .7em; padding: .05em .4em 0 .52em; font: 700 .74em var(--zk-serif); letter-spacing: .12em; white-space: nowrap; color: var(--zk-brass); border: 1px solid currentColor; vertical-align: .1em; }
.zk-quiz-explain i[hidden] { display: none; }
.zk-quiz-xie { margin: .35em 0 0; font-size: .82em; line-height: 1.5; letter-spacing: .05em; color: var(--zk-dim); }
.zk-quiz-xie i { margin-right: .3em; font: 900 .95em var(--zk-serif); letter-spacing: .2em; color: var(--zk-amber); }
.zk-quiz-xie i::before { content: '【'; } .zk-quiz-xie i::after { content: '】'; margin-left: -.2em; }
.zk-quiz-nav { margin-top: .9em; }
.zk-quiz-nav .zk-quiz-next { flex: 1; }
.zk-quiz[data-phase="ask"] .zk-quiz-next { display: none; }
.zk-quiz-nav .zk-quiz-skip { min-width: 9em; margin-left: auto; }
.zk-quiz-foot { margin-top: .8em; font-size: .66em; letter-spacing: .1em; color: rgba(239,230,210,.5); }
.zk-touch .zk-quiz kbd { display: none; }
.zk-title-quiz { position: absolute; right: var(--pr); bottom: var(--pb); font-size: .7em; letter-spacing: .2em; color: var(--zk-dim); text-shadow: 0 1px 2px #000; }
.zk-end-firm { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: .3em 1.4em; margin: -.3em 0 1.1em; padding: .55em .9em .5em; border-left: 3px solid var(--zk-brass); background: rgba(226,194,133,.07); }
.zk-end-firm[hidden], .zk-end-firm p[hidden] { display: none; }
.zk-end-firm p { margin: 0; white-space: nowrap; }
.zk-end-firm .firm b { font: 900 1em var(--zk-serif); letter-spacing: .2em; color: #ffe3ae; }
.zk-end-firm .firm span { margin-left: 1.1em; font-size: .84em; letter-spacing: .1em; }
.zk-end-firm .firm i { margin-left: 1.1em; font: 700 .84em var(--zk-serif); letter-spacing: .14em; color: var(--zk-amber); }
.zk-end-firm .quiz { font-size: .74em; letter-spacing: .1em; color: var(--zk-dim); }
@media (max-height: 520px) {
  .zk-quiz-card { width: min(48em, 94vw); }
  .zk-quiz-meta { margin-bottom: .6em; }
  .zk-quiz-text { margin-bottom: .7em; min-height: 0; font-size: 1.3em; line-height: 1.5; }
  .zk-quiz-fb { margin-top: .7em; padding: .5em .9em .45em; }
  .zk-quiz-explain { line-height: 1.6; }
  .zk-quiz-nav { margin-top: .7em; }
  .zk-quiz-foot { margin-top: .6em; }
  /* the report has ~20px to spare on a phone: one line, taken out of the gap above the buttons */
  .zk-end .zk-end-grid { margin-bottom: .45em; }
  .zk-end-firm { flex-wrap: nowrap; margin: 0 0 .5em; padding: .2em .8em .16em; overflow: hidden; }
  .zk-end[data-result="won"] .zk-end-firm .quiz { display: none; }
}

/* ===== social (值守补给: src/hud/social.js, src/social/) — one block, keep it at the end ============================ */
.zk-social { position: absolute; inset: 0; z-index: 3; display: none; place-items: center; background: radial-gradient(ellipse 80% 80% at 50% 50%, rgba(5,7,11,.74), rgba(5,7,11,.92)); pointer-events: auto; }
.zk-social.on { display: grid; animation: zk-fade .25s ease-out both; }
#ui.zk-social-open .zk-screens, #ui.zk-social-open .zk-radio { visibility: hidden; }
.zk-social-card { width: min(45em, 94vw); outline: none; }
.zk-social[data-kind="share"] .zk-social-card { width: min(34em, 94vw); }
.zs-grid { display: grid; grid-template-columns: 13.5em 1fr; gap: 1.8em; align-items: start; }
.zk-social[data-kind="share"] .zs-grid { grid-template-columns: 1fr; }
.zk-social[data-kind="share"] .zs-qr, .zk-social[data-kind="share"] .zs-cap { display: none; }
.zs-frame { position: relative; width: 13.5em; height: 13.5em; background: rgba(239,230,210,.04); border: 1px solid rgba(226,194,133,.55); box-shadow: inset 0 0 0 .32em rgba(10,12,17,.9), inset 0 0 0 calc(.32em + 1px) rgba(226,194,133,.22); -webkit-touch-callout: default; }
.zs-frame::before, .zs-frame::after { content: ''; position: absolute; width: 1.3em; height: 1.3em; border: 3px solid var(--zk-seal); pointer-events: none; }
.zs-frame::before { left: -2px; top: -2px; border-right: 0; border-bottom: 0; }
.zs-frame::after { right: -2px; bottom: -2px; border-left: 0; border-top: 0; }
.zs-frame img { position: absolute; inset: .55em; width: calc(100% - 1.1em); height: calc(100% - 1.1em); object-fit: contain; background: #fff; display: none; -webkit-user-select: auto; user-select: auto; -webkit-touch-callout: default; }
.zs-frame[data-state="ok"] img { display: block; }
.zs-empty { position: absolute; inset: .55em; display: none; flex-direction: column; align-items: center; justify-content: center; gap: .9em; border: 1px dashed rgba(239,230,210,.3); color: var(--zk-dim); }
.zs-frame[data-state="empty"] .zs-empty { display: flex; }
.zs-empty i { width: 3em; height: 3em; border: 2px solid rgba(226,194,133,.6); box-shadow: inset 0 0 0 .5em rgba(10,12,17,.9), inset 0 0 0 calc(.5em + 2px) rgba(226,194,133,.35); }
.zs-empty b { font: 700 .9em var(--zk-serif); letter-spacing: .3em; text-indent: .3em; }
.zs-acct { width: 13.5em; margin-top: .7em; text-align: center; }
.zs-acct b { display: block; font: 900 .98em/1.3 var(--zk-serif); letter-spacing: .1em; color: #ffe3ae; }
.zs-acct span { display: block; margin-top: .25em; font-size: .7em; letter-spacing: .12em; color: var(--zk-dim); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.zs-main { min-width: 0; display: flex; flex-direction: column; align-self: stretch; }
.zk-social .zs-title { font-size: 2.1em; letter-spacing: .14em; color: #ffe3ae; }
.zk-social[data-kind="revive"] .zs-title { color: #ff8672; }
.zs-body { margin: .35em 0 .8em; font: 400 1em/1.8 var(--zk-fang); letter-spacing: .05em; color: rgba(239,230,210,.86); }
.zs-cap { display: flex; align-items: center; gap: .8em; margin: 0 0 1em; padding: .5em .9em .46em; border-left: 3px solid var(--zk-brass); background: rgba(226,194,133,.07); font-size: .9em; letter-spacing: .1em; }
.zs-cap i { flex: none; padding: .12em .5em .08em .62em; font: 900 .86em var(--zk-serif); letter-spacing: .14em; color: #15110a; background: var(--zk-brass); white-space: nowrap; }
.zs-url { margin: 0 0 1em; padding: .55em .9em .5em; border: 1px dashed rgba(239,230,210,.3); font: 700 .86em/1.4 var(--zk-num); letter-spacing: .02em; color: var(--zk-brass); word-break: break-all; -webkit-user-select: text; user-select: text; }
.zs-url:empty { display: none; }
.zk-social .zk-menu { margin-top: auto; }
.zk-ui .zk-social .zk-btn { position: relative; min-height: max(2.9em, 44px); overflow: hidden; }
.zk-social .zk-btn b { letter-spacing: .18em; }
.zk-social .zk-btn em { margin-right: .8em; font-size: .78em; letter-spacing: .08em; white-space: nowrap; }
.zk-social .zs-claim u { position: absolute; left: 0; right: 0; bottom: 0; height: 3px; background: #15110a; transform-origin: 0 50%; transform: scaleX(0); opacity: .55; }
.zk-ui .zk-social .zs-claim:disabled { cursor: default; background: rgba(255,179,71,.22); color: rgba(239,230,210,.72); border-left-color: rgba(239,230,210,.3); }
.zk-social .zs-claim:disabled i { color: rgba(239,230,210,.5); }
.zk-social .zs-claim:disabled u { background: var(--zk-amber); opacity: 1; }
.zk-social .zs-claim:disabled kbd { display: none; }
.zk-social[data-done="1"] .zs-claim u { display: none; }
.zs-status { min-height: 1.4em; margin: .6em 0 0; font-size: .82em; letter-spacing: .1em; color: #7ee0a0; }
.zs-status:empty { min-height: 0; margin: 0; }
.zk-touch .zk-social kbd { display: none; }

/* the low-health chip: above the vitals; a real button on touch screens, a key hint with the mouse captured */
.zk-ui .zk-social-chip { position: absolute; left: var(--pl); bottom: calc(var(--pb) + 5.6em); z-index: 1; display: none; align-items: center; gap: .55em; padding: .42em .7em .38em .6em; background: rgba(10,12,17,.86); border-left: 3px solid var(--zk-brass); box-shadow: inset 0 0 0 1px rgba(226,194,133,.3); pointer-events: auto; white-space: nowrap; }
.zk-ui .zk-social-chip.on { display: flex; animation: zk-fade .3s ease-out both; }
.zk-social-chip i { font: 900 1.05em/1 var(--zk-num); color: #7ee0a0; }
.zk-social-chip b { font: 900 .86em var(--zk-serif); letter-spacing: .24em; color: #ffe3ae; }
.zk-social-chip.nokey kbd { display: none; }
#ui[data-state="paused"] .zk-social-chip, #ui.zk-quizzing .zk-social-chip { display: none; }
.zk-touch .zk-social-chip { left: 50%; bottom: calc(var(--pb) + 4.9em); transform: translateX(calc(-100% - 1.2em)); min-height: 34px; padding: .55em 1em .5em .8em; }

/* entries on the pause page and on the report */
.zk-menu.zk-social-row { flex-direction: row; gap: .42em; margin-top: .42em; }
.zk-menu.zk-social-row[hidden] { display: none; }
.zk-ui .zk-social-btn { border-left-color: var(--zk-brass); background: rgba(226,194,133,.08); }
.zk-social-row .zk-social-btn { flex: 1; min-width: 0; flex-wrap: wrap; row-gap: .1em; padding: .5em .6em .46em .7em; }
.zk-social-btn i { color: var(--zk-brass); }
.zk-social-row .zk-social-btn b { flex: none; font-size: 1em; letter-spacing: .16em; }
.zk-social-btn em { flex-basis: 100%; padding-left: 1.75em; font-size: .68em; letter-spacing: .08em; color: var(--zk-dim); white-space: nowrap; }
.zk-social-btn em:empty { display: none; }
.zk-ui .zk-social-btn:disabled { cursor: default; opacity: .5; }
.zk-ui .zk-social-btn:disabled:hover { background: rgba(226,194,133,.08); padding-left: .7em; }
.zk-menu.row .zk-btn.zk-social-btn { min-width: 0; flex-wrap: wrap; }
.zk-menu.row .zk-social-btn b { flex: none; letter-spacing: .2em; }
.zk-menu.row .zk-social-btn em { flex-basis: auto; padding-left: .8em; }
@media (max-height: 520px) {
  .zk-social-card { width: min(50em, 94vw); padding-top: 1.1em; padding-bottom: 1.1em; }
  .zk-social .zk-redrule { margin-bottom: .8em; }
  .zk-social .zs-title { font-size: 1.7em; }
  .zs-body { margin: .2em 0 .6em; line-height: 1.6; }
  .zs-cap { margin-bottom: .7em; }
  .zs-frame, .zs-acct { width: 13em; } .zs-frame { height: 13em; } .zs-grid { grid-template-columns: 13em 1fr; gap: 1.5em; }
  .zs-acct { margin-top: .5em; }
  .zk-pause .zk-card { padding-top: 1em; padding-bottom: 1em; }
  .zk-pause .zk-pause-status { margin-bottom: .8em; }
  .zk-pause .zk-btn { padding-top: .5em; padding-bottom: .48em; }
  .zk-pause .zk-social-row .zk-social-btn { padding-top: .36em; padding-bottom: .32em; }
}
/* ===== /social ====================================================================================================== */

/* ------------------------------------------------------------------ case shield (案情护盾): the three practice areas keep ONE colour each — the
   same three as the floating plates in the fight (src/quiz/areas.js).  Used by the 值守律师问答 card (src/hud/quiz.js). */
.zk-ui { --zk-area-civil: #f2a93b; --zk-area-crime: #4ba3ff; --zk-area-corp: #35c9a0; }
[data-area="civil"] { --area: var(--zk-area-civil); } [data-area="crime"] { --area: var(--zk-area-crime); } [data-area="corp"] { --area: var(--zk-area-corp); }
.zk-quiz-areas { display: flex; gap: .6em; margin: -.2em 0 .9em; }
.zk-quiz-areas[hidden] { display: none; }
.zk-quiz-areas b { flex: 1; padding: .3em .2em .24em; text-align: center; font: 900 .86em var(--zk-serif); letter-spacing: .16em; white-space: nowrap; color: var(--area); border: 1px solid var(--area); border-bottom-width: 3px; background: rgba(7,9,13,.5); opacity: .8; transition: opacity .15s, background .15s, color .15s; }
.zk-quiz[data-phase="done"] .zk-quiz-areas b { opacity: .32; }
.zk-quiz[data-phase="done"] .zk-quiz-areas b.on { opacity: 1; color: #0b0e14; background: var(--area); }
.zk-quiz-explain i[data-area]:not([data-area=""]) { color: #0b0e14; background: var(--area); border-color: var(--area); }
@media (max-height: 520px) { .zk-quiz-areas { margin-bottom: .6em; } .zk-quiz-areas b { padding: .2em .2em .14em; } }
/* ------------------------------------------------------------------ end of case shield */

/* ------------------------------------------------------------------ rooms (src/rooms/ui.js): the station prompt + hold ring, the lift-lobby device's clock, the coffee chip */
.zk-rooms { position: absolute; inset: 0; pointer-events: none; text-shadow: 0 1px 2px rgba(0,0,0,.9); }
#ui[data-state="title"] .zk-rooms, #ui[data-state="paused"] .zk-rooms, #ui[data-state="won"] .zk-rooms, #ui[data-state="lost"] .zk-rooms, #ui.zk-quizzing .zk-rooms, body.showcase .zk-rooms { display: none; }
#ui .zk-rm-prompt { position: absolute; left: 50%; top: 58.5%; transform: translate(-50%, .5em); display: flex; align-items: center; gap: .75em; padding: .38em 1.25em .38em .42em; text-align: left; white-space: nowrap; cursor: default;
  border: 1px solid rgba(239,230,210,.36); border-radius: 2.4em; background: rgba(9,12,18,.74); color: var(--zk-paper); opacity: 0; visibility: hidden; pointer-events: none; touch-action: none; -webkit-user-select: none; user-select: none;
  transition: opacity .16s ease, transform .16s ease, visibility 0s .16s, border-color .12s ease, box-shadow .12s ease; }
#ui .zk-rm-prompt.on { opacity: 1; visibility: visible; pointer-events: auto; transform: translate(-50%, 0); transition: opacity .16s ease, transform .16s ease, border-color .12s ease, box-shadow .12s ease; }
.zk-rm-key { position: relative; flex: none; display: grid; place-items: center; width: 2.9em; height: 2.9em; }
.zk-rm-key svg { position: absolute; inset: 0; width: 100%; height: 100%; transform: rotate(-90deg); }
.zk-rm-key circle { fill: none; stroke-width: 4; }
.zk-rm-key .bg { fill: rgba(0,0,0,.4); stroke: rgba(239,230,210,.24); stroke-width: 2.5; }
.zk-rm-key .fg { stroke: var(--zk-amber); stroke-linecap: round; }
#ui .zk-rm-key kbd { position: relative; min-width: 0; padding: 0; border: 0; background: none; font: 700 1.12em/1 var(--zk-num); color: #fff4d6; }
.zk-rm-txt { display: grid; gap: .16em; }
.zk-rm-txt b { font-weight: 700; font-size: 1.02em; letter-spacing: .14em; color: #fff4d6; }
.zk-rm-txt i { font-size: .72em; letter-spacing: .12em; color: var(--zk-dim); }
.zk-rm-prompt.busy, .zk-rm-prompt.held { border-color: var(--zk-amber); box-shadow: 0 0 1.4em rgba(255,179,71,.28); }
.zk-rm-prompt.deny { border-color: rgba(239,230,210,.2); }
.zk-rm-prompt.deny .zk-rm-txt b { color: var(--zk-dim); font-weight: 400; }
.zk-rm-prompt.deny .zk-rm-key { opacity: .35; }
.zk-rm-prompt.urgent { border-color: var(--zk-seal-hi); }
.zk-rm-prompt.urgent .fg { stroke: var(--zk-seal-hi); }
.zk-rm-prompt.cut { border-color: var(--zk-seal-hi); box-shadow: 0 0 1.4em rgba(255,90,68,.4); }
.zk-rooms.touch .zk-rm-prompt { top: 50%; font-size: 1.2em; padding: .5em 1.4em .5em .5em; border-color: rgba(255,179,71,.7); background: rgba(9,12,18,.8); }
.zk-rooms.touch .zk-rm-key { width: 3.3em; height: 3.3em; }
#ui .zk-rooms.touch .zk-rm-key kbd { font: 700 .72em/1 var(--zk-font, sans-serif); letter-spacing: .08em; }
.zk-rm-bomb { position: absolute; left: 50%; top: calc(var(--pt) + 4.3em); transform: translateX(-50%); display: none; align-items: center; gap: .9em; padding: .28em 1em .24em; white-space: nowrap;
  background: rgba(46,9,6,.82); border: 1px solid var(--zk-seal-hi); border-left-width: .5em; }
.zk-rm-bomb.on { display: flex; }
.zk-rm-bomb em { font: 700 .78em var(--zk-serif); letter-spacing: .22em; color: #ffd9d2; }
.zk-rm-bomb b { font: 700 1.7em/1 var(--zk-num); color: #fff; min-width: 2.9em; text-align: center; }
.zk-rm-bomb span { font-size: .74em; letter-spacing: .1em; color: var(--zk-dim); }
.zk-rm-bomb.hot b { color: var(--zk-seal-hi); animation: zk-blink .5s steps(2, jump-none) infinite; }
.zk-rooms.touch .zk-rm-bomb { top: calc(var(--pt) + 7.6em); }
.zk-rm-buff { position: absolute; left: var(--pl); bottom: calc(var(--pb) + 8.2em); display: none; align-items: baseline; gap: .55em; padding: .22em .8em .2em .6em; background: var(--zk-void); border-left: 2px solid var(--zk-amber); white-space: nowrap; }
.zk-rm-buff.on { display: flex; }
.zk-rm-buff em { font: 700 .76em var(--zk-serif); letter-spacing: .24em; color: var(--zk-amber); }
.zk-rm-buff b { font: 700 1.15em/1 var(--zk-num); min-width: 1.3em; text-align: right; }
.zk-rm-buff b::after { content: ' 秒'; font: 400 .6em var(--zk-font, sans-serif); color: var(--zk-dim); }
.zk-rm-buff span { font-size: .7em; letter-spacing: .1em; color: var(--zk-dim); }
.zk-rooms.touch .zk-rm-buff { left: 50%; bottom: auto; top: calc(var(--pt) + 10.1em); transform: translateX(-50%); }
.zk-rm-vig { position: absolute; inset: 0; opacity: 0; transition: opacity .6s ease; box-shadow: inset 0 0 9em rgba(255,170,70,.2), inset 0 0 2.2em rgba(255,190,110,.14); }
.zk-rm-vig.on { opacity: 1; }
/* ------------------------------------------------------------------ end of rooms */
/* brand rule: no red seal next to the logo; the seal only returns if the logo fails to load */
.zk-title-col:has(.zk-title-name:not(.zk-nologo)) .zk-seal { display: none; }

/* ------------------------------------------------------------------ enemy health bars + kill rewards (hud/foes.js) */
.zk-foes { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.zk-eb { position: absolute; left: 0; top: 0; display: none; width: 6.6em; font-size: 12px; will-change: transform; text-shadow: 0 0 3px #000, 0 1px 2px #000; }
.zk-eb .t { display: flex; align-items: baseline; justify-content: center; gap: .4em; color: #f1e8d4; font: 700 1em/1.1 var(--zk-serif, serif); letter-spacing: .08em; white-space: nowrap; }
.zk-eb .t em { display: none; font: 900 .72em/1 var(--zk-serif, serif); font-style: normal; letter-spacing: .1em; color: #101419; background: #9fb2c0; padding: .12em .4em; border-radius: 2px; text-shadow: none; }
.zk-eb.armour .t em { display: inline-block; }
.zk-eb.armour .t em::before { content: '\26E8 '; }
.zk-eb .bar { display: block; height: .42em; margin-top: .25em; background: rgba(7,9,13,.72); box-shadow: 0 0 0 1px rgba(7,9,13,.8); overflow: hidden; }
.zk-eb .bar u { display: block; height: 100%; width: 100%; transform-origin: 0 50%; background: #7ee0a0; text-decoration: none; transition: transform .12s linear; }
.zk-eb[data-lv="warn"] .bar u { background: #ffb347; }
.zk-eb[data-lv="crit"] .bar u { background: #ff543e; }
.zk-eb.armour .bar { box-shadow: 0 0 0 1px #9fb2c0; }
.zk-pop { position: absolute; left: 0; top: 0; display: none; align-items: center; gap: .3em; font: 900 18px/1 var(--zk-num, var(--zk-serif, serif)); color: #ffd56a; text-shadow: 0 0 4px #000, 0 1px 2px #000, 0 0 10px rgba(255,190,70,.55); white-space: nowrap; will-change: transform, opacity; }
.zk-pop small { font: 700 .62em/1 var(--zk-serif, serif); letter-spacing: .12em; color: #f1e3b5; }
.zk-pop i { width: .8em; height: .8em; border-radius: 50%; background: radial-gradient(circle at 35% 30%, #fff3b0 0 18%, #f6c23e 40%, #b9821a 100%); box-shadow: 0 0 0 1px #6b4a0c, 0 0 6px rgba(255,200,80,.7); }
.zk-pop[data-big="1"] { font-size: 22px; }
.zk-pop[data-big="2"] { font-size: 28px; }
.zk-pop[data-big="3"] { font-size: 38px; color: #ffe38f; }
.zk-credits b { display: inline-block; transition: color .3s, transform .3s cubic-bezier(.2,1.6,.4,1); }
.zk-credits.up b { transform: scale(1.28); text-shadow: 0 0 8px rgba(255,200,80,.8); transition: none; }
@media (max-height: 520px) { .zk-eb { font-size: 10px; width: 5.8em; } .zk-pop { font-size: 15px; } .zk-pop[data-big="1"] { font-size: 18px; } .zk-pop[data-big="2"] { font-size: 22px; } .zk-pop[data-big="3"] { font-size: 28px; } }

a.zk-credits { position: absolute; right: 1.6em; bottom: .9em; font-size: .62em; letter-spacing: .12em; color: rgba(239,230,210,.5); text-decoration: none; pointer-events: auto; }
a.zk-credits:hover { color: var(--zk-paper); }
body.zk-mobile a.zk-credits { display: none; }
.zk-helpcard { position: relative; }

.zk-ui .zk-classic.locked { opacity: .55; } .zk-ui .zk-classic.locked b { color: var(--zk-dim); }
.zk-mini.zk-stars { cursor: default; pointer-events: none; }
#ui.zk-touch.zk-docked .zk-lives { left: var(--pl); bottom: calc(var(--pb) + 12em); }      /* the shop panel takes the middle of a phone screen */