/* ==========================================================
   末栏 · ARG 三部曲
   Pure static horror puzzle game — no external assets/fonts.
   ========================================================== */

:root {
  --black: #070606;
  --ink: #0a0908;
  --ink-2: #12100e;
  --ink-3: #1a1613;
  --red: #8b0000;
  --red-bright: #b5121b;
  --red-deep: #4a0505;
  --gold: #b8860b;
  --gold-soft: #d0a84a;
  --paper: #e9e3d1;
  --paper-2: #f5f0e2;
  --paper-3: #d9d0b8;
  --official-blue: #154a82;
  --official-blue-2: #1e5b9d;
  --official-ink: #1f2937;
  --green: #1f7a4d;
  --green-bright: #39d98a;
  --muted: #8a8076;
  --line: rgba(184, 134, 11, 0.24);
  --serif: "Songti SC", "STSong", "Noto Serif SC", "SimSun", serif;
  --sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Heiti SC", sans-serif;
  --kai: "STKaiti", "KaiTi", "Kaiti SC", "Songti SC", serif;
  --mono: "Cascadia Mono", "SFMono-Regular", "Consolas", "Liberation Mono", monospace;
  --shadow: 0 22px 70px rgba(0, 0, 0, 0.55);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

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

html {
  color-scheme: dark;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--black);
  color: #e8e2d8;
  font-family: var(--serif);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.is-locked {
  overflow: hidden;
}

::selection {
  background: var(--red);
  color: #fff;
}

img {
  max-width: 100%;
  display: block;
}

button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
}

a {
  color: inherit;
}

h1, h2, h3, h4, p {
  margin-top: 0;
}

p:last-child {
  margin-bottom: 0;
}

hr {
  border: 0;
  border-top: 1px solid var(--line);
}

:focus-visible {
  outline: 2px solid var(--gold-soft);
  outline-offset: 3px;
}

#app {
  min-height: 100vh;
  opacity: 1;
  transition: opacity 0.45s ease;
}

#app.is-dimmed {
  opacity: 0.15;
}

/* ---------- atmosphere ---------- */
#grain {
  position: fixed;
  inset: -50%;
  z-index: 9000;
  pointer-events: none;
  opacity: 0.055;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 220 220' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.88' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.65'/%3E%3C/svg%3E");
  background-size: 220px 220px;
  animation: grain 0.42s steps(2) infinite;
  mix-blend-mode: screen;
}

#grain::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 45%, transparent 12%, rgba(0, 0, 0, 0.48) 100%);
}

@keyframes grain {
  0% { transform: translate(0, 0); }
  25% { transform: translate(-2%, 1%); }
  50% { transform: translate(1%, -2%); }
  75% { transform: translate(2%, 2%); }
  100% { transform: translate(-1%, -1%); }
}

.scanlines::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0.026) 0,
    rgba(255, 255, 255, 0.026) 1px,
    transparent 1px,
    transparent 4px
  );
  z-index: 5;
}

/* ---------- primitives ---------- */
.screen {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  overflow: hidden;
}

.screen--dark {
  background:
    radial-gradient(ellipse at 50% 20%, rgba(90, 7, 7, 0.22), transparent 48%),
    radial-gradient(ellipse at 50% 120%, rgba(80, 45, 3, 0.09), transparent 55%),
    var(--black);
}

.wrap {
  width: min(1160px, calc(100% - 48px));
  margin: 0 auto;
}

.wrap--narrow {
  width: min(820px, calc(100% - 48px));
  margin: 0 auto;
}

.wrap--wide {
  width: min(1380px, calc(100% - 48px));
  margin: 0 auto;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--gold);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
}

.eyebrow--red { color: #b34a47; }
.eyebrow--blue { color: var(--official-blue-2); }
.eyebrow--muted { color: #7c746c; }

.kicker {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.26em;
  color: #776c61;
}

.muted { color: #8d8378; }
.small { font-size: 13px; }
.tiny { font-size: 11px; }
.mono { font-family: var(--mono); }
.serif { font-family: var(--serif); }
.gold { color: var(--gold-soft); }
.red { color: #c04b45; }
.center { text-align: center; }
.nowrap { white-space: nowrap; }

.sr-only {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.btn {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 12px 22px;
  border: 1px solid rgba(184, 134, 11, 0.38);
  border-radius: 2px;
  background: transparent;
  color: #e7ddcf;
  font-family: var(--serif);
  font-size: 15px;
  letter-spacing: 0.12em;
  text-decoration: none;
  transition: background 0.25s, border-color 0.25s, color 0.25s, transform 0.18s;
  touch-action: manipulation;
  user-select: none;
}

.btn:hover {
  border-color: #a44a3f;
  background: rgba(139, 0, 0, 0.82);
  color: #fff;
}

.btn:active {
  transform: translateY(1px) scale(0.995);
}

.btn--primary {
  background: var(--red);
  border-color: #a31820;
  color: #fff;
}

.btn--primary:hover {
  background: var(--red-bright);
}

.btn--ghost {
  border-color: rgba(232, 226, 216, 0.18);
  color: #bdb4a9;
}

.btn--gold {
  border-color: rgba(184, 134, 11, 0.55);
  color: var(--gold-soft);
}

.btn--gold:hover {
  background: rgba(184, 134, 11, 0.18);
  color: #f0d492;
}

.btn--block { width: 100%; }
.btn--sm { min-height: 40px; padding: 8px 14px; font-size: 13px; }
.btn--lg { min-height: 54px; padding: 14px 28px; font-size: 16px; }

.btn[disabled],
.btn.is-disabled {
  opacity: 0.38;
  pointer-events: none;
}

.text-link {
  appearance: none;
  border: 0;
  padding: 0;
  background: none;
  color: #a1937e;
  font-size: 13px;
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: rgba(184, 134, 11, 0.35);
  transition: color 0.2s;
}

.text-link:hover { color: #d5b56a; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 8px;
  border: 1px solid rgba(184, 134, 11, 0.28);
  border-radius: 999px;
  color: #aa9d8c;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.chip--red { border-color: rgba(181, 18, 27, 0.4); color: #cc706a; }
.chip--green { border-color: rgba(57, 217, 138, 0.3); color: #74d6a7; }
.chip--blue { border-color: rgba(30, 91, 157, 0.35); color: #5b8fc9; }

.rule {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(184, 134, 11, 0.38), transparent);
  border: 0;
}

.field {
  display: block;
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid rgba(232, 226, 216, 0.18);
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.035);
  color: #f0eae1;
  font-family: var(--serif);
  font-size: 16px;
  transition: border-color 0.2s, background 0.2s;
}

.field::placeholder { color: #70665c; }
.field:focus { border-color: var(--gold); outline: 0; background: rgba(255, 255, 255, 0.055); }

.field[type="password"] { letter-spacing: 0.18em; }

.field-label {
  display: block;
  margin-bottom: 7px;
  color: #9d9183;
  font-size: 12px;
  letter-spacing: 0.1em;
}

.input-row {
  display: flex;
  gap: 10px;
  align-items: stretch;
}

.input-row .field { flex: 1; }
.input-row .btn { flex: 0 0 auto; }

.form-error {
  min-height: 22px;
  margin: 9px 0 0;
  color: #c45850;
  font-size: 12px;
  letter-spacing: 0.05em;
}

.form-error.is-shaking { animation: shake 0.38s ease; }

.notice {
  padding: 13px 15px;
  border-left: 2px solid var(--gold);
  background: rgba(184, 134, 11, 0.06);
  color: #b5a895;
  font-size: 13px;
  line-height: 1.75;
}

.notice--red {
  border-left-color: var(--red-bright);
  background: rgba(139, 0, 0, 0.14);
  color: #c9a6a2;
}

.nowrap-ellipsis {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ---------- chrome ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid rgba(184, 134, 11, 0.16);
  background: rgba(7, 6, 6, 0.93);
  backdrop-filter: blur(14px);
}

.topbar--light {
  border-bottom-color: #e5e9ef;
  background: rgba(255, 255, 255, 0.95);
  color: #263242;
}

.topbar--paper {
  border-bottom-color: #d4cbb7;
  background: rgba(239, 233, 218, 0.96);
  color: #38332b;
}

.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: min(1320px, calc(100% - 36px));
  height: 54px;
  margin: 0 auto;
}

.topbar__back,
.topbar__brand,
.topbar__right {
  display: flex;
  align-items: center;
  gap: 9px;
}

.topbar__back {
  appearance: none;
  min-height: 38px;
  padding: 5px 9px 5px 3px;
  border: 0;
  background: none;
  color: inherit;
  font-size: 13px;
  opacity: 0.75;
  transition: opacity 0.2s, color 0.2s;
}

.topbar__back:hover { opacity: 1; color: #d6b46d; }
.topbar--light .topbar__back:hover { color: var(--official-blue); }
.topbar__back svg { width: 18px; height: 18px; }

.topbar__title {
  min-width: 0;
  font-size: 13px;
  letter-spacing: 0.14em;
  opacity: 0.84;
}

.topbar__right {
  gap: 12px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  opacity: 0.55;
  white-space: nowrap;
}

.topbar__dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--red-bright);
  box-shadow: 0 0 8px rgba(181, 18, 27, 0.9);
}

/* global audio control */
.audio-toggle {
  position: fixed;
  left: 18px;
  bottom: calc(18px + var(--safe-bottom));
  z-index: 70;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border: 1px solid rgba(232, 226, 216, 0.2);
  border-radius: 50%;
  background: rgba(10, 9, 8, 0.72);
  color: #b6aa9b;
  backdrop-filter: blur(8px);
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.audio-toggle:hover {
  border-color: rgba(184, 134, 11, 0.62);
  color: var(--gold-soft);
  background: rgba(20, 16, 13, 0.9);
}

.audio-toggle svg { width: 19px; height: 19px; }
.audio-toggle .audio-off { display: none; }
.audio-toggle.is-muted .audio-on { display: none; }
.audio-toggle.is-muted .audio-off { display: block; }
.audio-toggle::after {
  content: "";
  position: absolute;
  inset: -5px;
  border: 1px solid rgba(181, 18, 27, 0.16);
  border-radius: 50%;
  animation: audioRing 4s ease-out infinite;
  pointer-events: none;
}

@keyframes audioRing {
  0%, 65% { transform: scale(0.9); opacity: 0; }
  72% { opacity: 0.8; }
  100% { transform: scale(1.25); opacity: 0; }
}

/* clues */
.clue-dock {
  position: fixed;
  right: 18px;
  bottom: calc(18px + var(--safe-bottom));
  z-index: 72;
  font-family: var(--sans);
}

.clue-dock__tab {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 8px 15px;
  border: 1px solid rgba(184, 134, 11, 0.35);
  border-radius: 999px;
  background: rgba(10, 9, 8, 0.82);
  color: #b8ab98;
  font-size: 12px;
  letter-spacing: 0.08em;
  backdrop-filter: blur(10px);
  transition: border-color 0.2s, color 0.2s;
}

.clue-dock__tab:hover { border-color: var(--gold); color: #e0c687; }
.clue-dock__tab .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--red-bright);
  box-shadow: 0 0 10px rgba(181, 18, 27, 0.85);
}
.clue-dock__tab .count { font-family: var(--mono); font-size: 10px; opacity: 0.64; }

.clue-panel {
  position: absolute;
  right: 0;
  bottom: 56px;
  width: 350px;
  max-height: min(70vh, 560px);
  display: none;
  overflow: hidden;
  border: 1px solid rgba(184, 134, 11, 0.36);
  background: #0d0c0a;
  box-shadow: var(--shadow);
}

.clue-dock.is-open .clue-panel { display: block; animation: panelIn 0.24s ease both; }

.clue-panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid rgba(184, 134, 11, 0.2);
  color: #d3c3aa;
  font-family: var(--serif);
  font-size: 14px;
  letter-spacing: 0.08em;
}

.clue-panel__head button {
  border: 0;
  background: none;
  color: #776d62;
  font-size: 18px;
  line-height: 1;
  padding: 3px 5px;
}

.clue-panel__body {
  max-height: calc(70vh - 54px);
  overflow-y: auto;
  padding: 4px 0 10px;
  scrollbar-width: thin;
  scrollbar-color: #4a3520 #0d0c0a;
}

.clue-item {
  padding: 12px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.clue-item:last-child { border-bottom: 0; }
.clue-item__top { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; }
.clue-item__name { color: #d8c6a7; font-size: 13px; }
.clue-item__answer {
  margin: 5px 0 0;
  color: #c7695f;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  word-break: break-word;
}
.clue-item__hint { margin: 6px 0 0; color: #756a5e; font-size: 11px; line-height: 1.65; }
.clue-item.is-locked .clue-item__name { color: #554e46; }
.clue-item.is-locked .clue-item__answer { color: #423b35; letter-spacing: 0.3em; }
.clue-item__lock { color: #5f5549; font-family: var(--mono); font-size: 9px; }

@keyframes panelIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* flash / transition */
#flash {
  position: fixed;
  inset: 0;
  z-index: 10000;
  pointer-events: none;
  background: #d10d16;
  opacity: 0;
}

#flash.is-on {
  animation: redFlash 0.62s ease-out both;
}

@keyframes redFlash {
  0% { opacity: 0; }
  10% { opacity: 0.94; }
  48% { opacity: 0.8; }
  100% { opacity: 0; }
}

#dim {
  position: fixed;
  inset: 0;
  z-index: 9800;
  display: grid;
  place-items: center;
  padding: 24px;
  background: #000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.85s ease;
}

#dim.is-on { opacity: 1; pointer-events: auto; }
#dim .dim__text {
  max-width: 560px;
  color: #bca888;
  font-family: var(--serif);
  font-size: clamp(18px, 3vw, 25px);
  line-height: 1.9;
  letter-spacing: 0.12em;
  text-align: center;
}

/* toast */
#toast {
  position: fixed;
  left: 50%;
  bottom: calc(84px + var(--safe-bottom));
  z-index: 10002;
  transform: translate(-50%, 14px);
  max-width: min(90vw, 520px);
  padding: 10px 18px;
  border: 1px solid rgba(184, 134, 11, 0.32);
  background: rgba(12, 10, 8, 0.94);
  color: #d4c5ae;
  font-size: 13px;
  letter-spacing: 0.04em;
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.24s, transform 0.24s;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

#toast.is-on { opacity: 1; transform: translate(-50%, 0); }
#toast.is-error { border-color: rgba(181, 18, 27, 0.5); color: #d78a84; }

/* modal */
.modal-root {
  position: fixed;
  inset: 0;
  z-index: 9500;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-root.is-open { display: flex; }

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(7px);
  animation: fadeIn 0.28s ease both;
}

.modal {
  position: relative;
  width: min(520px, 100%);
  max-height: min(86vh, 760px);
  overflow-y: auto;
  border: 1px solid rgba(184, 134, 11, 0.36);
  background:
    linear-gradient(135deg, rgba(139, 0, 0, 0.08), transparent 42%),
    #0e0c0a;
  box-shadow: var(--shadow);
  animation: modalIn 0.32s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.modal--wide { width: min(720px, 100%); }
.modal--red { border-color: rgba(181, 18, 27, 0.52); background: #240606; }
.modal--blue { border-color: rgba(74, 126, 173, 0.42); background: #081824; color: #dcebf3; }
.modal--steel { border-color: rgba(150, 162, 172, 0.42); background: #171b1e; color: #e5e8e9; }
.modal--paper { border-color: #cfc4ab; background: #f2ecdd; color: #302c25; }
.modal--success { border-color: rgba(184, 134, 11, 0.6); background: #100d09; }

.modal__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 22px 24px 0;
}

.modal__kicker {
  margin: 0 0 7px;
  color: var(--gold);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.26em;
}

.modal--red .modal__kicker { color: #d77b75; }
.modal--blue .modal__kicker { color: #76b6dd; }
.modal--steel .modal__kicker { color: #a9bdc9; }

.modal__title {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(20px, 3vw, 27px);
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: 0.05em;
}

.modal__close {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 50%;
  background: transparent;
  color: #8e8173;
  font-size: 17px;
}

.modal__close:hover { color: #fff; border-color: rgba(255, 255, 255, 0.3); }
.modal--paper .modal__close { border-color: rgba(0, 0, 0, 0.15); color: #746b5e; }

.modal__body {
  padding: 18px 24px 24px;
  color: #b9ad9e;
  font-size: 14px;
  line-height: 1.9;
}

.modal--red .modal__body { color: #e6c9c6; }
.modal--blue .modal__body { color: #c3dce9; }
.modal--steel .modal__body { color: #cbd4d9; }
.modal--paper .modal__body { color: #5a5144; }

.modal__body p { margin: 0 0 12px; }
.modal__body p:last-child { margin-bottom: 0; }
.modal__body strong { color: #e5d2b0; font-weight: 600; }
.modal--paper .modal__body strong { color: #302b22; }

.modal__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0 24px 24px;
}

.modal__actions .btn { flex: 1 1 auto; }

@keyframes modalIn {
  from { opacity: 0; transform: translateY(14px) scale(0.985); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ---------- opening ---------- */
.screen--opening {
  display: grid;
  place-items: center;
  min-height: 100vh;
  background:
    radial-gradient(circle at 50% 44%, rgba(139, 0, 0, 0.23) 0, rgba(139, 0, 0, 0.07) 12%, transparent 42%),
    radial-gradient(circle at 50% 110%, rgba(184, 134, 11, 0.07), transparent 45%),
    #060505;
  text-align: center;
  isolation: isolate;
}

.screen--opening::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(184, 134, 11, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(184, 134, 11, 0.024) 1px, transparent 1px);
  background-size: 88px 88px;
  mask-image: radial-gradient(circle at center, #000, transparent 70%);
  pointer-events: none;
}

.screen--opening::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  background: linear-gradient(transparent, rgba(139, 0, 0, 0.3), transparent);
  pointer-events: none;
}

.opening-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(36vw, 440px);
  aspect-ratio: 1;
  border-radius: 50%;
  transform: translate(-50%, -60%);
  background: radial-gradient(circle, rgba(153, 9, 9, 0.28), rgba(80, 0, 0, 0.1) 35%, transparent 70%);
  filter: blur(20px);
  animation: breatheGlow 6s ease-in-out infinite;
  pointer-events: none;
}

@keyframes breatheGlow {
  0%, 100% { transform: translate(-50%, -60%) scale(1); opacity: 0.66; }
  45% { transform: translate(-50%, -60%) scale(1.16); opacity: 0.92; }
}

.opening-copy {
  position: relative;
  z-index: 2;
  width: min(760px, calc(100% - 46px));
  padding: 90px 0 70px;
}

.opening-copy .fiction {
  margin: 0 0 48px;
  color: #84796d;
  font-size: 12px;
  letter-spacing: 0.22em;
}

.opening-title {
  margin: 0;
  color: #ede7dc;
  font-family: var(--kai);
  font-size: clamp(88px, 18vw, 220px);
  font-weight: 500;
  line-height: 0.9;
  letter-spacing: 0.08em;
  text-shadow: 0 0 60px rgba(139, 0, 0, 0.24);
}

.opening-title span {
  display: inline-block;
  animation: titleFlicker 11s infinite;
}

.opening-title span:last-child {
  animation-delay: 1.7s;
  color: #ddd3c5;
}

@keyframes titleFlicker {
  0%, 92%, 96%, 100% { opacity: 1; }
  93% { opacity: 0.62; }
  94% { opacity: 0.94; }
  95% { opacity: 0.36; }
}

.opening-sub {
  margin: 26px 0 0;
  color: #8c8174;
  font-size: 12px;
  letter-spacing: 0.5em;
}

.opening-tagline {
  width: min(430px, 100%);
  margin: 44px auto 0;
  color: #766c61;
  font-family: var(--kai);
  font-size: 15px;
  letter-spacing: 0.12em;
  line-height: 2;
}

.opening-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-top: 42px;
}

.opening-actions .btn {
  min-width: 210px;
  background: rgba(139, 0, 0, 0.12);
  border-color: rgba(181, 18, 27, 0.42);
  color: #d9c7b9;
}

.opening-actions .btn:hover {
  background: var(--red);
  color: #fff;
}

.opening-actions .btn--quiet {
  min-width: 0;
  border-color: transparent;
  color: #6f665c;
  font-size: 12px;
  letter-spacing: 0.16em;
}

.opening-actions .btn--quiet:hover {
  background: transparent;
  color: #ad9d8a;
}

.opening-foot {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 24px;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1160px, calc(100% - 44px));
  margin: 0 auto;
  color: #4f4941;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.18em;
}

.opening-foot .dot-live {
  display: inline-block;
  width: 5px;
  height: 5px;
  margin-right: 7px;
  border-radius: 50%;
  background: #8b0000;
  box-shadow: 0 0 8px #b5121b;
}

.opening-run {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 16px;
  color: #926a65;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.26em;
}

.opening-run::before,
.opening-run::after {
  content: "";
  width: 22px;
  height: 1px;
  background: #5e1d1a;
}

/* ---------- login ---------- */
.screen--login {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  min-height: 100vh;
  background: #eef2f6;
  color: #24303d;
}

.login-visual {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 100vh;
  padding: 50px 54px 42px;
  overflow: hidden;
  background: #152536 url("../assets/hospital.jpg") center / cover no-repeat;
  color: #fff;
  isolation: isolate;
}

.login-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(7, 20, 34, 0.92), rgba(9, 25, 42, 0.52) 52%, rgba(9, 25, 42, 0.12)),
    linear-gradient(0deg, rgba(7, 17, 28, 0.9), transparent 45%);
}

.login-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 100% 62px;
  opacity: 0.6;
}

.login-sys {
  display: flex;
  align-items: center;
  gap: 14px;
}

.login-sys .cross {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(255, 255, 255, 0.26);
  font-family: var(--sans);
  font-size: 18px;
  color: #dbe8f4;
}

.login-sys .name {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
}

.login-sys .sub {
  color: rgba(255, 255, 255, 0.48);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.14em;
}

.login-quote {
  max-width: 520px;
  margin: auto 0 40px;
}

.login-quote h2 {
  margin: 0 0 20px;
  font-family: var(--serif);
  font-size: clamp(32px, 4vw, 53px);
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: 0.05em;
  text-shadow: 0 2px 30px rgba(0, 0, 0, 0.42);
}

.login-quote p {
  max-width: 400px;
  color: rgba(233, 241, 248, 0.58);
  font-family: var(--sans);
  font-size: 12px;
  line-height: 1.9;
  letter-spacing: 0.06em;
}

.login-meta {
  display: flex;
  gap: 26px;
  color: rgba(255, 255, 255, 0.35);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.12em;
}

.login-panel {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 54px clamp(26px, 5vw, 76px);
  background:
    radial-gradient(circle at 100% 0, rgba(30, 91, 157, 0.06), transparent 42%),
    #f4f7fa;
}

.login-card {
  width: min(410px, 100%);
  margin: 0 auto;
}

.login-card__head {
  margin-bottom: 30px;
}

.login-card__head .eyebrow { color: #7d93a8; }
.login-card__head h1 {
  margin: 0 0 10px;
  color: #163f68;
  font-family: var(--sans);
  font-size: clamp(25px, 2.3vw, 31px);
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.4;
}

.login-card__head p {
  color: #798897;
  font-family: var(--sans);
  font-size: 12px;
  line-height: 1.7;
}

.login-tabs {
  display: flex;
  gap: 2px;
  margin-bottom: 24px;
  border-bottom: 1px solid #dce3ea;
}

.login-tab {
  appearance: none;
  position: relative;
  flex: 1;
  min-height: 42px;
  padding: 8px 6px;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: #8996a4;
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.04em;
  transition: color 0.2s, border-color 0.2s;
}

.login-tab:hover { color: #3d5b7a; }
.login-tab.is-active { border-bottom-color: #1e5b9d; color: #16497e; font-weight: 600; }
.login-tab.is-locked { color: #aeb7c0; }
.login-tab .lock { margin-left: 4px; font-size: 9px; }

.login-form {
  display: grid;
  gap: 16px;
}

.official-field label {
  display: block;
  margin-bottom: 7px;
  color: #68798a;
  font-family: var(--sans);
  font-size: 12px;
}

.official-field .field {
  min-height: 48px;
  border: 1px solid #cfd9e2;
  border-radius: 1px;
  background: #fff;
  color: #253545;
  font-family: var(--sans);
  font-size: 15px;
  letter-spacing: 0;
}

.official-field .field:focus {
  border-color: #1e5b9d;
  box-shadow: 0 0 0 3px rgba(30, 91, 157, 0.08);
}

.official-field .field::placeholder { color: #a4b0bc; }

.login-btn {
  min-height: 50px;
  border: 1px solid #154a82;
  border-radius: 1px;
  background: #1e5b9d;
  color: #fff;
  font-family: var(--sans);
  font-size: 15px;
  letter-spacing: 0.18em;
  transition: background 0.2s, transform 0.18s;
}

.login-btn:hover { background: #164777; }
.login-btn:active { transform: translateY(1px); }

.login-hint {
  margin-top: 18px;
  padding: 11px 13px;
  border: 1px dashed #d4dde5;
  background: #eef3f8;
  color: #7a8b9c;
  font-family: var(--mono);
  font-size: 10px;
  line-height: 1.8;
  letter-spacing: 0.02em;
}

.login-hint strong { color: #445f79; font-weight: 600; }
.login-hint--second {
  border-color: #e0b9b7;
  background: #fbf1f0;
  color: #9e5a56;
}

.login-security {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-top: 26px;
  color: #99a6b2;
  font-family: var(--sans);
  font-size: 10px;
}

.login-security .status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #4c9b73;
  box-shadow: 0 0 0 3px rgba(76, 155, 115, 0.12);
}

.login-foot {
  width: min(410px, 100%);
  margin: 44px auto 0;
  padding-top: 16px;
  border-top: 1px solid #dde4ea;
  color: #a1adb8;
  font-family: var(--mono);
  font-size: 9px;
  line-height: 1.8;
  letter-spacing: 0.04em;
}

.login-back {
  position: absolute;
  top: 20px;
  right: 24px;
  z-index: 2;
  border: 0;
  background: transparent;
  color: #8b9aaa;
  font-family: var(--sans);
  font-size: 11px;
}

.login-back:hover { color: #174a7a; }

/* ---------- OAS dashboard ---------- */
.screen--oas {
  background: #eef2f7;
  color: #263442;
  font-family: var(--sans);
}

.oas-head {
  position: relative;
  z-index: 3;
  background: #144777;
  color: #fff;
}

.oas-head__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(1280px, calc(100% - 44px));
  min-height: 64px;
  margin: 0 auto;
}

.oas-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.oas-brand .mark {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  font-size: 14px;
}

.oas-brand .t {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.oas-brand .s {
  color: rgba(255, 255, 255, 0.46);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.16em;
}

.oas-user {
  display: flex;
  align-items: center;
  gap: 18px;
  color: rgba(255, 255, 255, 0.65);
  font-size: 11px;
}

.oas-user strong { color: #fff; font-weight: 500; }

.oas-nav {
  display: flex;
  gap: 2px;
  width: min(1280px, calc(100% - 44px));
  margin: 0 auto;
  overflow-x: auto;
  scrollbar-width: none;
}

.oas-nav::-webkit-scrollbar { display: none; }

.oas-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 41px;
  padding: 7px 17px;
  color: rgba(255, 255, 255, 0.56);
  font-size: 12px;
  text-decoration: none;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}

.oas-nav a:hover { color: #fff; }
.oas-nav a.is-active { border-bottom-color: #fff; color: #fff; background: rgba(255, 255, 255, 0.06); }

.oas-page {
  width: min(1280px, calc(100% - 44px));
  margin: 0 auto;
  padding: 30px 0 70px;
}

.oas-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  color: #93a4b4;
  font-size: 10px;
}

.oas-breadcrumb span { color: #c2cbd4; }

.oas-title-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 24px;
}

.oas-title-row h1 {
  margin: 0 0 4px;
  color: #1c3145;
  font-size: clamp(23px, 2.4vw, 29px);
  font-weight: 650;
  letter-spacing: 0.01em;
}

.oas-title-row p {
  margin: 0;
  color: #8394a4;
  font-size: 11px;
}

.oas-date {
  color: #93a2b0;
  font-family: var(--mono);
  font-size: 10px;
  white-space: nowrap;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}

.stat-card {
  position: relative;
  padding: 17px 18px;
  border: 1px solid #dfe6ed;
  background: #fff;
  overflow: hidden;
}

.stat-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 34px;
  height: 2px;
  background: #1e5b9d;
}

.stat-card--danger::before { background: #b23a3a; }
.stat-card .label { margin-bottom: 7px; color: #8494a3; font-size: 10px; letter-spacing: 0.03em; }
.stat-card .value { color: #1d3b58; font-family: var(--mono); font-size: 28px; font-weight: 600; line-height: 1; }
.stat-card--danger .value { color: #a62c2c; }
.stat-card .note { margin-top: 8px; color: #a0acb7; font-size: 9px; }

.dash-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 18px;
  margin-top: 18px;
}

.panel {
  border: 1px solid #dfe6ed;
  background: #fff;
}

.panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid #edf1f5;
}

.panel__head h2 {
  margin: 0;
  color: #283b4d;
  font-size: 13px;
  font-weight: 600;
}

.panel__body { padding: 18px; }

.alert-stack { display: grid; gap: 8px; margin-bottom: 18px; }

.alert-item {
  display: flex;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid #f0d2d2;
  border-left: 3px solid #b23a3a;
  background: #fdf7f7;
}

.alert-item .level {
  flex: 0 0 auto;
  color: #a52d2d;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.1em;
}

.alert-item .body { min-width: 0; }
.alert-item h3 { margin: 0 0 3px; color: #7d2c2c; font-size: 11px; font-weight: 600; }
.alert-item p { margin: 0; color: #966e6e; font-size: 10px; line-height: 1.7; }
.alert-item time { display: block; margin-top: 4px; color: #b39797; font-family: var(--mono); font-size: 8px; }

.archive-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.archive-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 210px;
  padding: 19px;
  border: 1px solid #e1e7ed;
  border-top: 2px solid #b23a3a;
  background: #fcfdff;
  text-align: left;
  transition: box-shadow 0.2s, border-color 0.2s, transform 0.2s;
  overflow: hidden;
}

.archive-card:hover {
  border-color: #cdd8e2;
  box-shadow: 0 12px 28px rgba(28, 55, 82, 0.08);
  transform: translateY(-2px);
}

.archive-card.is-solved { border-top-color: #4c8b70; }
.archive-card__top { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 12px; }
.archive-card__tag { color: #aa4343; font-size: 9px; letter-spacing: 0.06em; }
.archive-card.is-solved .archive-card__tag { color: #4f886d; }
.archive-card h3 { margin: 0 0 8px; color: #203649; font-size: 15px; font-weight: 600; line-height: 1.5; }
.archive-card p { margin: 0 0 14px; color: #7b8c9b; font-size: 10px; line-height: 1.75; }
.archive-card__meta { display: flex; flex-wrap: wrap; gap: 6px 12px; margin-top: auto; color: #9aa7b2; font-family: var(--mono); font-size: 8px; }
.archive-card__arrow { position: absolute; right: 16px; bottom: 16px; color: #a8b5c0; font-size: 16px; }

.archive-card__solved-stamp {
  position: absolute;
  right: 12px;
  top: 36px;
  padding: 3px 7px;
  border: 1px solid #6d9b84;
  color: #4f806a;
  font-size: 8px;
  letter-spacing: 0.1em;
  transform: rotate(-7deg);
  opacity: 0.78;
}

.progress-panel { margin-top: 18px; }
.progress-list { display: grid; gap: 1px; background: #edf1f5; }

.progress-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 18px;
  background: #fff;
}

.progress-row .num {
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border: 1px solid #d7e0e8;
  border-radius: 50%;
  color: #8b9ba9;
  font-family: var(--mono);
  font-size: 9px;
}

.progress-row.is-done .num { border-color: #6c9c84; background: #eef7f2; color: #488568; }
.progress-row.is-current .num { border-color: #1e5b9d; color: #1e5b9d; }
.progress-row h3 { margin: 0; color: #536676; font-size: 11px; font-weight: 500; }
.progress-row p { margin: 2px 0 0; color: #9ba8b4; font-size: 9px; }
.progress-row .state { margin-left: auto; color: #9aa8b4; font-family: var(--mono); font-size: 8px; white-space: nowrap; }
.progress-row.is-done .state { color: #5b9178; }

.side-card {
  padding: 18px;
  border: 1px solid #dfe6ed;
  background: #fff;
}

.side-card + .side-card { margin-top: 12px; }
.side-card h3 { margin: 0 0 14px; color: #2a3c4e; font-size: 12px; font-weight: 600; }
.profile-row { display: flex; align-items: center; gap: 11px; margin-bottom: 14px; }
.profile-avatar {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: #e6eef6;
  color: #1e5b9d;
  font-size: 15px;
  font-weight: 600;
}
.profile-row .name { color: #30475c; font-size: 13px; font-weight: 600; }
.profile-row .role { color: #91a0ae; font-size: 9px; }
.side-list { display: grid; gap: 9px; }
.side-list div { display: flex; justify-content: space-between; gap: 12px; color: #8b9aa8; font-size: 9px; }
.side-list strong { color: #4d6275; font-weight: 500; font-family: var(--mono); }

.quick-action {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 48px;
  padding: 10px 12px;
  border: 1px solid #dbe3ea;
  background: #f8fafc;
  color: #3e566b;
  font-size: 11px;
  text-align: left;
  transition: border-color 0.2s, background 0.2s;
}

.quick-action + .quick-action { margin-top: 7px; }
.quick-action:hover { border-color: #b9cada; background: #f1f6fa; }
.quick-action strong { color: #1e5b9d; font-weight: 500; }
.quick-action.is-locked { opacity: 0.55; }
.quick-action.is-locked strong { color: #9aa8b4; }

.oas-foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  margin-top: 30px;
  padding-top: 14px;
  border-top: 1px solid #dbe3ea;
  color: #a0adb8;
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.05em;
}

/* archive detail */
.archive-hero {
  display: grid;
  grid-template-columns: 1fr 220px;
  gap: 18px;
  margin-bottom: 18px;
}

.archive-identity {
  padding: 22px;
  border: 1px solid #dfe6ed;
  background: #fff;
}

.archive-identity__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 16px;
}

.archive-identity h1 {
  margin: 0 0 7px;
  color: #1c3145;
  font-size: clamp(22px, 2.3vw, 28px);
  font-weight: 650;
}

.archive-identity p { margin: 0; color: #8494a3; font-size: 10px; }
.archive-identity__stamp {
  flex: 0 0 auto;
  padding: 5px 8px;
  border: 1px solid #d7a5a5;
  color: #a34a4a;
  font-size: 9px;
  letter-spacing: 0.1em;
  transform: rotate(-3deg);
}

.archive-meta-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid #edf1f5;
}

.archive-meta-grid .k { color: #9ba8b4; font-size: 8px; }
.archive-meta-grid .v { margin-top: 3px; color: #3d556b; font-size: 11px; font-weight: 500; }

.archive-warning {
  padding: 18px;
  border: 1px solid #efdcdc;
  background: #fdf8f8;
  color: #8e5d5d;
  font-size: 10px;
  line-height: 1.8;
}

.archive-warning h3 { margin: 0 0 8px; color: #9c3b3b; font-size: 11px; }
.archive-warning .big-num { display: block; margin-top: 14px; color: #b13b3b; font-family: var(--mono); font-size: 34px; line-height: 1; }

.timeline { position: relative; }
.timeline::before {
  content: "";
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 7px;
  width: 1px;
  background: #e2e8ee;
}

.timeline-item {
  position: relative;
  padding: 0 0 20px 30px;
}

.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: "";
  position: absolute;
  top: 6px;
  left: 2px;
  width: 11px;
  height: 11px;
  border: 2px solid #fff;
  border-radius: 50%;
  background: #9eb0bf;
  box-shadow: 0 0 0 1px #d3dde6;
}
.timeline-item:first-child::before { background: #b23a3a; box-shadow: 0 0 0 1px #e0b8b8; }
.timeline-item .meta { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 4px; color: #96a4b1; font-size: 8px; }
.timeline-item .meta .type { color: #546d82; }
.timeline-item p { margin: 0; color: #617385; font-size: 11px; line-height: 1.85; }

.puzzle-box {
  border: 1px solid #cfdae4;
  background: #f8fbfd;
}

.puzzle-box__head {
  padding: 16px 18px;
  border-bottom: 1px solid #dfe8ef;
  background: #f1f6fa;
}

.puzzle-box__head h3 { margin: 0 0 5px; color: #2f4b63; font-size: 12px; }
.puzzle-box__head p { margin: 0; color: #7f94a7; font-size: 9px; line-height: 1.7; }
.puzzle-box__body { padding: 18px; }

.cipher {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-bottom: 14px;
}
.cipher span {
  display: grid;
  place-items: center;
  width: 34px;
  height: 44px;
  border: 1px solid #c6d4e0;
  background: #fff;
  color: #274a68;
  font-family: var(--mono);
  font-size: 18px;
  letter-spacing: 0.08em;
}

.puzzle-note {
  margin-bottom: 14px;
  padding: 9px 11px;
  border-left: 2px solid #b79a59;
  background: #fbf7eb;
  color: #8c7a54;
  font-size: 9px;
  line-height: 1.75;
}

.puzzle-success {
  padding: 16px;
  border: 1px solid #b9d6c7;
  background: #f1f9f5;
  color: #4f7864;
}

.puzzle-success h3 { margin: 0 0 6px; color: #346b52; font-size: 13px; }
.puzzle-success p { margin: 0 0 12px; font-size: 10px; line-height: 1.8; }
.puzzle-success .answer {
  display: block;
  margin-bottom: 10px;
  color: #2f7155;
  font-family: var(--mono);
  font-size: 22px;
  letter-spacing: 0.22em;
}

.unlock-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 18px;
  border: 1px solid #c9dce8;
  background: #f2f8fc;
}

.unlock-strip h3 { margin: 0 0 3px; color: #315b7b; font-size: 12px; }
.unlock-strip p { margin: 0; color: #8198aa; font-size: 9px; }

/* ---------- institute ---------- */
.screen--institute {
  background: #f7f6f2;
  color: #26312d;
  font-family: var(--sans);
}

.inst-header {
  position: relative;
  z-index: 4;
  background: #133a50;
  color: #fff;
}

.inst-header__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
  width: min(1240px, calc(100% - 44px));
  min-height: 74px;
  margin: 0 auto;
}

.inst-brand { display: flex; align-items: center; gap: 14px; }
.inst-brand .mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  font-family: var(--serif);
  font-size: 19px;
}
.inst-brand .name { font-family: var(--serif); font-size: 18px; letter-spacing: 0.12em; }
.inst-brand .en { color: rgba(255, 255, 255, 0.36); font-family: var(--mono); font-size: 7px; letter-spacing: 0.17em; }
.inst-header__meta { color: rgba(255, 255, 255, 0.46); font-family: var(--mono); font-size: 9px; letter-spacing: 0.08em; text-align: right; }

.inst-nav {
  position: relative;
  z-index: 3;
  border-bottom: 1px solid #dce2df;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
}

.inst-nav__inner {
  display: flex;
  gap: 4px;
  width: min(1240px, calc(100% - 44px));
  margin: 0 auto;
  overflow-x: auto;
  scrollbar-width: none;
}
.inst-nav__inner::-webkit-scrollbar { display: none; }

.inst-nav button {
  appearance: none;
  flex: 0 0 auto;
  min-height: 48px;
  padding: 9px 14px;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: #697b76;
  font-family: var(--sans);
  font-size: 12px;
  white-space: nowrap;
}
.inst-nav button:hover { color: #1f4d62; }
.inst-nav button.is-active { border-bottom-color: #2f6e5d; color: #1e5a49; font-weight: 600; }

.inst-main { width: min(1240px, calc(100% - 44px)); margin: 0 auto; padding: 28px 0 70px; }

.inst-hero {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: min(58vh, 560px);
  padding: 52px;
  overflow: hidden;
  background: #163141 url("../assets/hospital.jpg") center 40% / cover no-repeat;
  color: #fff;
  isolation: isolate;
}

.inst-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(7, 24, 31, 0.87), rgba(9, 31, 39, 0.34) 60%, rgba(9, 31, 39, 0.05)),
    linear-gradient(0deg, rgba(6, 20, 27, 0.8), transparent 55%);
}

.inst-hero__text { max-width: 640px; }
.inst-hero h1 {
  margin: 0 0 17px;
  font-family: var(--serif);
  font-size: clamp(31px, 4.4vw, 58px);
  font-weight: 500;
  line-height: 1.36;
  letter-spacing: 0.04em;
}
.inst-hero p { max-width: 490px; color: rgba(235, 241, 240, 0.64); font-size: 12px; line-height: 1.95; }
.inst-hero .eyebrow { color: #9cc5b7; }

.inst-hero__badge {
  position: absolute;
  right: 24px;
  bottom: 24px;
  color: rgba(255, 255, 255, 0.38);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.18em;
  writing-mode: vertical-rl;
}

.inst-section { margin-top: 46px; }
.inst-section__head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 20px; }
.inst-section__head h2 { margin: 0; color: #193f34; font-family: var(--serif); font-size: clamp(22px, 2.4vw, 31px); font-weight: 500; letter-spacing: 0.06em; }
.inst-section__head p { margin: 0; color: #8a9793; font-size: 10px; }

.inst-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.inst-card {
  padding: 22px;
  border: 1px solid #dfe4df;
  background: #fff;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}
.inst-card:hover { border-color: #b7c8c0; box-shadow: 0 14px 30px rgba(23, 49, 40, 0.06); transform: translateY(-2px); }
.inst-card .num { margin-bottom: 17px; color: #b3a98e; font-family: var(--mono); font-size: 9px; letter-spacing: 0.16em; }
.inst-card h3 { margin: 0 0 8px; color: #214a3d; font-size: 15px; font-weight: 600; }
.inst-card p { margin: 0; color: #7f8e88; font-size: 10px; line-height: 1.9; }

.inst-split { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 22px; align-items: stretch; }
.inst-photo {
  min-height: 330px;
  background: #142e38 url("../assets/operating-room.jpg") center / cover no-repeat;
  position: relative;
  overflow: hidden;
}
.inst-photo::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(6, 22, 26, 0.45), transparent 55%);
}
.inst-photo__caption {
  position: absolute;
  left: 20px;
  bottom: 17px;
  z-index: 2;
  color: rgba(255, 255, 255, 0.6);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.14em;
}

.inst-quote {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 34px;
  border: 1px solid #e2e4dc;
  background: #f1f0e9;
}
.inst-quote blockquote { margin: 0 0 22px; color: #32483f; font-family: var(--serif); font-size: clamp(21px, 2.2vw, 29px); line-height: 1.7; letter-spacing: 0.04em; }
.inst-quote cite { color: #8d8b7d; font-family: var(--mono); font-size: 9px; font-style: normal; letter-spacing: 0.1em; }

.inst-text { max-width: 800px; }
.inst-text h1 { margin: 0 0 10px; color: #193f34; font-family: var(--serif); font-size: clamp(28px, 3.3vw, 43px); font-weight: 500; letter-spacing: 0.05em; }
.inst-text .lead { margin: 0 0 26px; color: #52665e; font-family: var(--serif); font-size: clamp(16px, 1.7vw, 20px); line-height: 1.85; }
.inst-text p { color: #687a73; font-size: 13px; line-height: 2.05; margin: 0 0 16px; }

.fact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin: 30px 0; background: #dfe4df; border: 1px solid #dfe4df; }
.fact-item { padding: 18px; background: #fff; }
.fact-item .k { color: #96a19b; font-size: 9px; }
.fact-item .v { margin-top: 5px; color: #2a4e42; font-size: 14px; font-weight: 500; }

.people-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 26px; }
.person-card { padding: 20px; border: 1px solid #e1e5df; background: #fff; }
.person-card .avatar { display: grid; place-items: center; width: 44px; height: 44px; margin-bottom: 13px; border-radius: 50%; background: #e8efeb; color: #32604f; font-family: var(--serif); font-size: 16px; }
.person-card h3 { margin: 0 0 3px; color: #284c40; font-size: 14px; }
.person-card .role { color: #89968f; font-size: 9px; }
.person-card p { margin: 10px 0 0; color: #84918a; font-size: 10px; line-height: 1.8; }

.news-list { display: grid; gap: 1px; background: #e3e5df; border: 1px solid #e3e5df; }
.news-row {
  display: grid;
  grid-template-columns: 100px minmax(0, 1fr) 90px;
  gap: 18px;
  align-items: start;
  padding: 20px;
  background: #fff;
  text-align: left;
  border: 0;
  transition: background 0.2s;
}
.news-row:hover { background: #f8faf8; }
.news-row .date { color: #9ba6a0; font-family: var(--mono); font-size: 9px; padding-top: 3px; }
.news-row h3 { margin: 0 0 5px; color: #234a3e; font-size: 14px; font-weight: 600; line-height: 1.55; }
.news-row p { margin: 0; color: #82918b; font-size: 10px; line-height: 1.8; }
.news-row .cat { justify-self: end; color: #8c9f96; font-size: 9px; }

.news-article {
  border: 1px solid #e1e5df;
  background: #fff;
  margin-bottom: 18px;
}
.news-article__head { padding: 28px 30px 22px; border-bottom: 1px solid #edf0ea; }
.news-article__head h2 { margin: 0 0 10px; color: #1e4438; font-family: var(--serif); font-size: clamp(24px, 3vw, 36px); font-weight: 500; line-height: 1.5; letter-spacing: 0.03em; }
.news-article__meta { display: flex; flex-wrap: wrap; gap: 14px; color: #94a19a; font-family: var(--mono); font-size: 9px; }
.news-article__body { max-width: 790px; padding: 26px 30px 10px; }
.news-article__body p { color: #5c6e66; font-size: 13px; line-height: 2.1; margin: 0 0 18px; }
.news-article__body p:first-child::first-letter { float: left; margin: 7px 9px 0 0; color: #2e5848; font-family: var(--serif); font-size: 47px; line-height: 0.82; }
.news-article__foot { padding: 20px 30px 30px; }

.news-cipher {
  margin: 6px 0 18px;
  border: 1px solid #d8dfd9;
  background: #f5f7f3;
}
.news-cipher__head { padding: 14px 17px; border-bottom: 1px solid #e2e7e0; color: #6d7d74; font-size: 10px; }
.news-cipher__body { padding: 17px; }
.news-cipher code {
  display: inline-block;
  margin-bottom: 12px;
  padding: 7px 11px;
  border: 1px solid #ccd7ce;
  background: #fff;
  color: #325145;
  font-family: var(--mono);
  font-size: 17px;
  letter-spacing: 0.1em;
}
.news-cipher p { color: #8b978f; font-size: 9px; }

.institute-footer {
  margin-top: 52px;
  padding: 24px 0 0;
  border-top: 1px solid #dfe3dd;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  color: #9aa69f;
  font-family: var(--mono);
  font-size: 8px;
  line-height: 1.8;
}

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.contact-card { padding: 26px; border: 1px solid #e0e5df; background: #fff; }
.contact-card h3 { margin: 0 0 16px; color: #244c3f; font-size: 14px; }
.contact-card dl { margin: 0; display: grid; grid-template-columns: 70px 1fr; gap: 10px; }
.contact-card dt { color: #96a29b; font-size: 9px; }
.contact-card dd { margin: 0; color: #526860; font-size: 11px; line-height: 1.7; }
.contact-map {
  position: relative;
  min-height: 310px;
  overflow: hidden;
  background:
    linear-gradient(rgba(17, 49, 57, 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(17, 49, 57, 0.12) 1px, transparent 1px),
    #e8ece6;
  background-size: 34px 34px;
}
.contact-map::before {
  content: "";
  position: absolute;
  inset: 16% 12%;
  border: 1px solid #c3cdc3;
  transform: rotate(-5deg);
}
.contact-map::after {
  content: "临渊";
  position: absolute;
  top: 50%;
  left: 50%;
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border: 1px solid #9c3d3d;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.72);
  color: #9c3d3d;
  font-family: var(--serif);
  font-size: 13px;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 0 9px rgba(156, 61, 61, 0.07);
}

/* ---------- forum ---------- */
.screen--forum {
  background: #e9e4d5;
  color: #342f27;
  font-family: var(--serif);
}

.forum-head {
  position: relative;
  background: #2e3337;
  color: #e9e4d5;
  border-bottom: 4px solid #6b4b33;
}

.forum-head__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(1040px, calc(100% - 38px));
  min-height: 76px;
  margin: 0 auto;
}

.forum-brand { display: flex; align-items: baseline; gap: 12px; }
.forum-brand .name { font-size: 23px; letter-spacing: 0.12em; }
.forum-brand .sub { color: #8f938d; font-family: var(--sans); font-size: 9px; letter-spacing: 0.1em; }
.forum-head__meta { color: #969b93; font-family: var(--sans); font-size: 9px; }

.forum-nav {
  display: flex;
  gap: 2px;
  width: min(1040px, calc(100% - 38px));
  margin: 0 auto;
  overflow-x: auto;
  scrollbar-width: none;
}
.forum-nav::-webkit-scrollbar { display: none; }
.forum-nav a, .forum-nav button {
  appearance: none;
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 6px 14px;
  border: 0;
  background: transparent;
  color: #b8b6a9;
  font-family: var(--sans);
  font-size: 10px;
  text-decoration: none;
  white-space: nowrap;
}
.forum-nav button:hover, .forum-nav a:hover { color: #fff; background: rgba(255, 255, 255, 0.05); }
.forum-nav .is-active { color: #f1e8d2; background: #444a4c; }

.forum-main { width: min(1040px, calc(100% - 38px)); margin: 0 auto; padding: 22px 0 70px; }

.forum-notice {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 13px;
  border: 1px solid #d2c9b5;
  background: #f0eadb;
  color: #80735e;
  font-family: var(--sans);
  font-size: 9px;
  line-height: 1.6;
}
.forum-notice::before { content: "i"; display: grid; place-items: center; flex: 0 0 auto; width: 17px; height: 17px; border: 1px solid #b9a98e; border-radius: 50%; font-family: var(--serif); font-size: 10px; }

.forum-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin: 18px 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid #cec4ae;
}
.forum-toolbar h1 { margin: 0; color: #3a3328; font-size: 17px; font-weight: 600; letter-spacing: 0.08em; }
.forum-toolbar .crumbs { color: #978b78; font-family: var(--sans); font-size: 9px; }
.forum-toolbar .crumbs a { color: #6e604c; text-decoration: none; }

.post-table { border: 1px solid #d4cab4; background: #f5efe0; }
.post-row {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) 110px 95px;
  gap: 14px;
  align-items: center;
  width: 100%;
  padding: 16px 18px;
  border: 0;
  border-bottom: 1px solid #ddd3be;
  background: transparent;
  color: inherit;
  text-align: left;
  transition: background 0.18s;
}
.post-row:last-child { border-bottom: 0; }
.post-row:hover { background: #fbf6e8; }
.post-row__icon {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid #cdbfa3;
  border-radius: 2px;
  color: #8b5f42;
  font-family: var(--serif);
  font-size: 13px;
}
.post-row__main h2 { margin: 0 0 4px; color: #42382b; font-size: 14px; font-weight: 600; line-height: 1.55; }
.post-row__main p { margin: 0; color: #928573; font-family: var(--sans); font-size: 9px; line-height: 1.6; }
.post-row__author { color: #7e6e59; font-family: var(--sans); font-size: 9px; }
.post-row__author strong { display: block; color: #544737; font-weight: 500; }
.post-row__stats { color: #a29580; font-family: var(--mono); font-size: 9px; text-align: right; }
.post-row__stats span { display: block; }
.post-row__stats .hot { color: #a73a32; }

.forum-pager { display: flex; gap: 5px; justify-content: center; margin-top: 18px; }
.forum-pager span {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border: 1px solid #d0c6b1;
  color: #877a64;
  font-family: var(--sans);
  font-size: 9px;
}
.forum-pager span.is-active { background: #4b4e4c; border-color: #4b4e4c; color: #f3ead7; }

.forum-crumbs { margin-bottom: 14px; color: #978a75; font-family: var(--sans); font-size: 9px; }
.forum-crumbs button { border: 0; background: none; padding: 0; color: #715f48; text-decoration: underline; text-underline-offset: 3px; }

.thread { border: 1px solid #d2c8b2; background: #f6f0e1; }
.thread__head { padding: 22px 24px 18px; border-bottom: 1px solid #ded5c1; }
.thread__head h1 { margin: 0 0 8px; color: #3b3125; font-size: clamp(20px, 2.5vw, 27px); font-weight: 600; line-height: 1.5; }
.thread__meta { display: flex; flex-wrap: wrap; gap: 14px; color: #988a73; font-family: var(--sans); font-size: 9px; }
.thread__body { padding: 24px; }
.thread__body p { margin: 0 0 15px; color: #544939; font-size: 13px; line-height: 2; }
.thread__body p:last-child { margin-bottom: 0; }

.floor-list { border-top: 1px solid #d9cfba; }
.floor {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 14px;
  padding: 14px 24px;
  border-bottom: 1px solid #e2d9c7;
}
.floor:nth-child(odd) { background: rgba(255, 255, 255, 0.27); }
.floor__side { color: #9f917a; font-family: var(--mono); font-size: 8px; }
.floor__side strong { display: block; color: #6c5c46; font-family: var(--sans); font-size: 9px; font-weight: 500; margin-bottom: 2px; }
.floor__body { color: #5a4d3a; font-size: 12px; line-height: 1.85; }
.floor__body .sig { display: block; margin-top: 6px; color: #ab9c83; font-family: var(--sans); font-size: 8px; }

.hidden-reveal {
  margin: 8px 24px 24px;
  padding: 22px 4px 10px;
  border-top: 1px dashed #cbbfa8;
  text-align: left;
}
.hidden-reveal .whisper {
  display: block;
  margin-bottom: 12px;
  color: #92846d;
  font-size: 11px;
  letter-spacing: 0.08em;
  line-height: 1.8;
}
.hidden-link {
  appearance: none;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 44px;
  padding: 7px 0;
  border: 0;
  background: transparent;
  color: #8e806a;
  font-family: var(--serif);
  font-size: 12px;
  letter-spacing: 0.05em;
  text-decoration: none;
  transition: color 0.25s;
}
.hidden-link:hover { color: #8b0000; }
.hidden-link .arrow { font-family: var(--sans); transition: transform 0.2s; }
.hidden-link:hover .arrow { transform: translateX(4px); }

.account-scrap {
  margin-top: 12px;
  padding: 12px 14px;
  border: 1px solid #d2c6aa;
  background: #eee7d5;
  color: #7d6d54;
  font-family: var(--mono);
  font-size: 9px;
  line-height: 1.8;
}
.account-scrap strong { color: #574935; font-weight: 600; }

.forum-foot {
  margin-top: 24px;
  color: #a2957d;
  font-family: var(--sans);
  font-size: 8px;
  text-align: center;
  line-height: 1.8;
}

/* ---------- panyang ---------- */
.screen--panyang-login {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 100vh;
  background: #0b1117;
  color: #dbe7ee;
  font-family: var(--sans);
}

.panyang-visual {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 44px;
  overflow: hidden;
  background: #101b26 url("../assets/panyang-hq.jpg") center / cover no-repeat;
  isolation: isolate;
}
.panyang-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(0deg, rgba(4, 9, 14, 0.84), rgba(4, 9, 14, 0.08) 64%);
}
.panyang-brand { display: flex; align-items: center; gap: 12px; }
.panyang-brand .mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #71c8c0;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
}
.panyang-brand .name { font-size: 16px; font-weight: 600; letter-spacing: 0.1em; }
.panyang-brand .en { color: rgba(255, 255, 255, 0.38); font-family: var(--mono); font-size: 8px; letter-spacing: 0.16em; }
.panyang-visual h2 { margin: 0 0 14px; font-family: var(--serif); font-size: clamp(32px, 4vw, 54px); font-weight: 400; line-height: 1.45; letter-spacing: 0.04em; }
.panyang-visual p { max-width: 390px; color: rgba(219, 231, 238, 0.48); font-size: 11px; line-height: 1.9; }
.panyang-visual__foot { color: rgba(255, 255, 255, 0.25); font-family: var(--mono); font-size: 8px; letter-spacing: 0.14em; }

.panyang-login-panel { display: flex; flex-direction: column; justify-content: center; padding: 50px clamp(25px, 5vw, 75px); background: #f4f7f9; color: #22313e; }
.panyang-login-card { width: min(380px, 100%); margin: 0 auto; }
.panyang-login-card h1 { margin: 0 0 9px; color: #1e3548; font-size: 26px; font-weight: 650; }
.panyang-login-card > p { color: #8193a2; font-size: 11px; line-height: 1.8; }
.panyang-login-card .official-field { margin-top: 16px; }
.panyang-login-card .login-btn { margin-top: 20px; background: #206b72; border-color: #206b72; }
.panyang-login-card .login-btn:hover { background: #18585e; }
.panyang-back { margin-top: 18px; border: 0; background: none; color: #8193a2; font-size: 10px; text-align: left; }
.panyang-back:hover { color: #206b72; }

.screen--panyang { background: #f1f5f7; color: #2b3c49; font-family: var(--sans); }
.panyang-header { position: sticky; top: 0; z-index: 30; background: #fff; border-bottom: 1px solid #e0e7ec; }
.panyang-header__inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; width: min(1180px, calc(100% - 40px)); min-height: 64px; margin: 0 auto; }
.panyang-logo { display: flex; align-items: center; gap: 10px; color: #1d3c4b; font-weight: 600; letter-spacing: 0.08em; }
.panyang-logo .mark { display: grid; place-items: center; width: 30px; height: 30px; border: 1px solid #a8c6c9; color: #23727a; font-family: var(--mono); font-size: 10px; }
.panyang-user { display: flex; align-items: center; gap: 14px; color: #8093a1; font-size: 10px; }
.panyang-user strong { color: #2b5660; font-weight: 600; }
.panyang-nav { display: flex; gap: 2px; width: min(1180px, calc(100% - 40px)); margin: 0 auto; overflow-x: auto; scrollbar-width: none; }
.panyang-nav::-webkit-scrollbar { display: none; }
.panyang-nav button { appearance: none; min-height: 42px; padding: 7px 14px; border: 0; border-bottom: 2px solid transparent; background: transparent; color: #7f91a0; font-size: 11px; white-space: nowrap; }
.panyang-nav button.is-active { border-bottom-color: #23727a; color: #1b5e65; font-weight: 600; }
.panyang-main { width: min(1180px, calc(100% - 40px)); margin: 0 auto; padding: 26px 0 60px; }
.panyang-banner {
  position: relative;
  min-height: 220px;
  display: flex;
  align-items: flex-end;
  padding: 28px;
  overflow: hidden;
  background: #14212a url("../assets/panyang-hq.jpg") center / cover no-repeat;
  color: #fff;
  isolation: isolate;
}
.panyang-banner::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgba(4, 12, 17, 0.82), transparent); }
.panyang-banner h1 { margin: 0 0 5px; font-family: var(--serif); font-size: 28px; font-weight: 500; letter-spacing: 0.06em; }
.panyang-banner p { margin: 0; color: rgba(255, 255, 255, 0.55); font-size: 10px; }

.panyang-grid { display: grid; grid-template-columns: 1fr 300px; gap: 16px; margin-top: 16px; }
.panyang-panel { border: 1px solid #e0e7ec; background: #fff; }
.panyang-panel__head { display: flex; align-items: center; justify-content: space-between; padding: 14px 17px; border-bottom: 1px solid #eef2f5; }
.panyang-panel__head h2 { margin: 0; color: #2c4352; font-size: 12px; font-weight: 600; }
.panyang-panel__body { padding: 17px; }
.announcement { padding: 16px 0; border-bottom: 1px solid #edf1f4; }
.announcement:first-child { padding-top: 0; }
.announcement:last-child { border-bottom: 0; padding-bottom: 0; }
.announcement .meta { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 6px; color: #94a3af; font-size: 8px; }
.announcement h3 { margin: 0 0 6px; color: #355064; font-size: 12px; }
.announcement p { margin: 0; color: #7d8f9d; font-size: 10px; line-height: 1.8; white-space: pre-line; }
.mail-row { padding: 12px 0; border-bottom: 1px solid #edf1f4; }
.mail-row:last-child { border-bottom: 0; }
.mail-row .from { color: #23727a; font-size: 9px; font-weight: 600; }
.mail-row h3 { margin: 3px 0; color: #354e60; font-size: 11px; }
.mail-row p { margin: 0; color: #8d9ba7; font-size: 9px; }

/* ---------- hell login ---------- */
.screen--hell-login {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 70px 22px;
  background:
    radial-gradient(circle at 50% 43%, rgba(120, 5, 5, 0.2), transparent 36%),
    radial-gradient(circle at 50% 50%, #170606 0, #080303 54%, #020101 100%);
  isolation: isolate;
  overflow: hidden;
}
.screen--hell-login::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 15%, rgba(184, 134, 11, 0.08), transparent 24%),
    radial-gradient(circle at 82% 80%, rgba(139, 0, 0, 0.13), transparent 26%);
  pointer-events: none;
}
.hell-login-return {
  position: absolute;
  top: 20px;
  left: 20px;
  z-index: 4;
}
.hell-login-return button { border: 0; background: none; color: #7d5c57; font-size: 11px; }
.hell-login-return button:hover { color: #c28c84; }

.hell-login-box { position: relative; z-index: 2; width: min(440px, 100%); text-align: center; }
.hexagram-wrap { position: relative; width: 190px; height: 190px; margin: 0 auto 28px; display: grid; place-items: center; }
.hexagram-halo {
  position: absolute;
  inset: -26px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(139, 0, 0, 0.16), transparent 68%);
  filter: blur(13px);
  animation: breatheGlow 5s ease-in-out infinite;
}
.hexagram-svg { width: 100%; height: 100%; overflow: visible; }
.hexagram-svg .ring { fill: none; stroke: rgba(181, 18, 27, 0.54); stroke-width: 0.8; }
.hexagram-svg .tri { fill: none; stroke: rgba(181, 18, 27, 0.76); stroke-width: 1.3; }
.hexagram-svg .eye { fill: rgba(181, 18, 27, 0.47); }
.hexagram-svg .pupil { fill: #0a0202; }
.hexagram-svg .tick { stroke: rgba(184, 134, 11, 0.35); stroke-width: 0.7; }
.hexagram-svg .spin { transform-origin: 100px 100px; animation: slowSpin 80s linear infinite; }
.hexagram-svg .spin-rev { transform-origin: 100px 100px; animation: slowSpin 58s linear infinite reverse; }
@keyframes slowSpin { to { transform: rotate(360deg); } }

.hell-login-title {
  margin: 0;
  color: #d7c5ad;
  font-family: var(--serif);
  font-size: clamp(42px, 7vw, 64px);
  font-weight: 400;
  letter-spacing: 0.35em;
  text-indent: 0.35em;
  line-height: 1.1;
  text-shadow: 0 0 35px rgba(139, 0, 0, 0.44);
}
.hell-login-en { margin: 9px 0 30px; color: #713b37; font-family: var(--mono); font-size: 9px; letter-spacing: 0.42em; }
.hell-login-sub { margin: 0 0 25px; color: #84645f; font-family: var(--kai); font-size: 13px; letter-spacing: 0.14em; line-height: 1.8; }

.hell-form { display: grid; gap: 12px; text-align: left; }
.hell-form .field {
  border-color: rgba(139, 0, 0, 0.48);
  background: rgba(0, 0, 0, 0.36);
  color: #d5aaa3;
  font-family: var(--mono);
  letter-spacing: 0.24em;
  text-align: center;
}
.hell-form .field::placeholder { color: #633c37; letter-spacing: 0.1em; }
.hell-form .field:focus { border-color: #9b1a1a; background: rgba(30, 5, 5, 0.65); }
.hell-form .btn { margin-top: 5px; background: #5f0909; border-color: #801515; color: #dbc4b6; letter-spacing: 0.5em; text-indent: 0.5em; }
.hell-form .btn:hover { background: #8b0000; }
.hell-quote { margin: 25px 0 0; color: #8d6057; font-family: var(--kai); font-size: 11px; letter-spacing: 0.08em; }
.hell-hint { margin: 18px 0 0; color: #8f675b; font-family: var(--mono); font-size: 8px; letter-spacing: 0.11em; line-height: 1.8; }

/* ---------- hell main ---------- */
.screen--hell {
  background:
    radial-gradient(ellipse at 50% -10%, rgba(118, 9, 9, 0.27), transparent 44%),
    radial-gradient(ellipse at 50% 120%, rgba(73, 48, 5, 0.1), transparent 48%),
    #080505;
  color: #cfb9a2;
  font-family: var(--serif);
  isolation: isolate;
}

.screen--hell::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, transparent 0, rgba(139, 0, 0, 0.035) 13%, transparent 27%, transparent 73%, rgba(139, 0, 0, 0.035) 87%, transparent 100%),
    repeating-linear-gradient(90deg, transparent 0, transparent 112px, rgba(184, 134, 11, 0.025) 113px, transparent 114px);
  pointer-events: none;
  mask-image: linear-gradient(transparent, #000 20%, #000 80%, transparent);
}

.hell-arch {
  position: fixed;
  top: 6vh;
  left: 50%;
  z-index: -1;
  width: min(88vw, 1000px);
  height: min(84vh, 850px);
  border: 1px solid rgba(139, 0, 0, 0.15);
  border-bottom: 0;
  border-radius: 50% 50% 0 0 / 17% 17% 0 0;
  transform: translateX(-50%);
  pointer-events: none;
  box-shadow: inset 0 0 120px rgba(139, 0, 0, 0.05);
}
.hell-arch::before,
.hell-arch::after {
  content: "";
  position: absolute;
  top: 9%;
  bottom: 0;
  width: 1px;
  background: linear-gradient(transparent, rgba(139, 0, 0, 0.2), transparent);
}
.hell-arch::before { left: 16%; }
.hell-arch::after { right: 16%; }

.hell-header { position: relative; z-index: 4; border-bottom: 1px solid rgba(139, 0, 0, 0.24); background: rgba(6, 3, 3, 0.66); backdrop-filter: blur(12px); }
.hell-header__inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; width: min(1100px, calc(100% - 40px)); min-height: 60px; margin: 0 auto; }
.hell-brand { display: flex; align-items: center; gap: 12px; }
.hell-brand .sigil { width: 29px; height: 29px; }
.hell-brand .name { color: #cbb292; font-family: var(--serif); font-size: 17px; letter-spacing: 0.28em; }
.hell-brand .en { color: #5e3330; font-family: var(--mono); font-size: 7px; letter-spacing: 0.16em; }
.hell-user { color: #946a5e; font-family: var(--mono); font-size: 8px; letter-spacing: 0.12em; }
.hell-user .dot { display: inline-block; width: 4px; height: 4px; margin-right: 5px; border-radius: 50%; background: #a31414; box-shadow: 0 0 7px #b5121b; }

.hell-verse {
  position: relative;
  z-index: 2;
  width: min(840px, calc(100% - 44px));
  margin: 0 auto;
  padding: 28px 0 18px;
  text-align: center;
  color: #8d6f53;
  font-family: var(--kai);
  font-size: clamp(12px, 1.5vw, 15px);
  letter-spacing: 0.12em;
  line-height: 2;
}
.hell-verse::before, .hell-verse::after { content: "◆"; margin: 0 13px; color: #4e2c28; font-size: 7px; }

.hell-nav {
  position: relative;
  z-index: 3;
  display: flex;
  justify-content: center;
  gap: 6px;
  width: min(1100px, calc(100% - 40px));
  margin: 0 auto;
  padding-bottom: 18px;
  overflow-x: auto;
  scrollbar-width: none;
}
.hell-nav::-webkit-scrollbar { display: none; }
.hell-nav button {
  appearance: none;
  flex: 0 0 auto;
  min-height: 44px;
  padding: 7px 17px;
  border: 1px solid transparent;
  background: transparent;
  color: #a37969;
  font-family: var(--serif);
  font-size: 11px;
  letter-spacing: 0.14em;
  white-space: nowrap;
}
.hell-nav button:hover { color: #bc9880; }
.hell-nav button.is-active { border-color: rgba(139, 0, 0, 0.46); background: rgba(91, 7, 7, 0.19); color: #c8a888; }

.hell-main { position: relative; z-index: 2; width: min(1100px, calc(100% - 40px)); margin: 0 auto; padding: 6px 0 96px; }
.hell-intro { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 22px; padding-bottom: 14px; border-bottom: 1px solid rgba(139, 0, 0, 0.25); }
.hell-intro h1 { margin: 0 0 5px; color: #c6ae90; font-family: var(--serif); font-size: clamp(23px, 2.7vw, 31px); font-weight: 400; letter-spacing: 0.16em; }
.hell-intro p { margin: 0; color: #b08d79; font-size: 11px; letter-spacing: 0.06em; }
.hell-intro .count { color: #966b5e; font-family: var(--mono); font-size: 9px; white-space: nowrap; }
.hell-intro .count strong { color: #a6675e; font-weight: 500; }

.scroll-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.scroll-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 172px;
  padding: 20px 21px;
  border: 1px solid rgba(139, 0, 0, 0.3);
  background:
    linear-gradient(135deg, rgba(139, 0, 0, 0.08), transparent 40%),
    rgba(9, 5, 5, 0.65);
  color: #b9a086;
  text-align: left;
  transition: border-color 0.25s, background 0.25s, transform 0.2s;
  overflow: hidden;
}
.scroll-card:hover { border-color: rgba(184, 134, 11, 0.42); background-color: rgba(35, 8, 8, 0.55); transform: translateY(-2px); }
.scroll-card::after {
  content: "✦";
  position: absolute;
  right: 17px;
  bottom: 11px;
  color: rgba(184, 134, 11, 0.2);
  font-size: 12px;
}
.scroll-card__num { margin-bottom: 15px; color: #a06b5f; font-family: var(--mono); font-size: 8px; letter-spacing: 0.18em; }
.scroll-card h2 { margin: 0 0 7px; color: #c3a780; font-family: var(--serif); font-size: 19px; font-weight: 400; letter-spacing: 0.12em; }
.scroll-card p { margin: 0; color: #b79a83; font-size: 11px; line-height: 1.85; }
.scroll-card__status { margin-top: auto; padding-top: 13px; color: #b18470; font-family: var(--mono); font-size: 9px; letter-spacing: 0.11em; }
.scroll-card.is-done .scroll-card__status { color: #8d8061; }
.scroll-card.is-locked { opacity: 0.54; }
.scroll-card--final {
  grid-column: 1 / -1;
  min-height: 138px;
  border-color: rgba(181, 18, 27, 0.56);
  background: linear-gradient(90deg, rgba(139, 0, 0, 0.19), rgba(9, 5, 5, 0.77));
}
.scroll-card--final h2 { color: #d5b79a; }
.scroll-card--final .scroll-card__num { color: #a36057; }
.scroll-card--final .final-row { display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.scroll-card--final .final-row .btn { flex: 0 0 auto; }

.map-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 16px;
}
.hell-map {
  position: relative;
  min-height: 560px;
  border: 1px solid rgba(139, 0, 0, 0.3);
  background:
    radial-gradient(circle at 50% 50%, rgba(139, 0, 0, 0.08), transparent 48%),
    repeating-linear-gradient(0deg, transparent 0, transparent 55px, rgba(184, 134, 11, 0.035) 56px),
    repeating-linear-gradient(90deg, transparent 0, transparent 55px, rgba(184, 134, 11, 0.035) 56px),
    rgba(7, 4, 4, 0.45);
  overflow: hidden;
}
.hell-map::before {
  content: "十二城 · 搏印节点";
  position: absolute;
  top: 14px;
  left: 16px;
  z-index: 2;
  color: #76554a;
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.15em;
}
.hell-map__svg { position: absolute; inset: 4% 2%; width: 96%; height: 92%; }
.city-node { cursor: default; }
.city-node .halo { fill: rgba(139, 0, 0, 0.14); }
.city-node .core { fill: #9b1a1a; }
.city-node text { fill: #b18e74; font-family: var(--serif); font-size: 9px; letter-spacing: 0.08em; }
.map-grid { stroke: rgba(184, 134, 11, 0.055); stroke-width: 1; }
.city-node.is-main .halo { fill: rgba(181, 18, 27, 0.25); animation: mapPulse 2.8s ease-in-out infinite; transform-origin: center; }
.city-node.is-main .core { fill: #d11b22; filter: drop-shadow(0 0 5px rgba(181, 18, 27, 0.85)); }
.city-node.is-main text { fill: #d3a883; font-size: 12px; }

@keyframes mapPulse {
  0%, 100% { transform: scale(1); opacity: 0.75; }
  50% { transform: scale(1.6); opacity: 1; }
}

.map-side { display: flex; flex-direction: column; gap: 12px; }
.map-side .side-block { padding: 17px; border: 1px solid rgba(139, 0, 0, 0.28); background: rgba(10, 6, 6, 0.48); }
.map-side h3 { margin: 0 0 9px; color: #c3a382; font-size: 12px; font-weight: 400; letter-spacing: 0.1em; }
.map-side p { margin: 0 0 11px; color: #b29780; font-size: 10px; line-height: 1.9; }
.map-side p:last-child { margin-bottom: 0; }
.map-counter { display: flex; align-items: baseline; gap: 8px; margin: 12px 0 4px; color: #c7a57d; font-family: var(--mono); font-size: 34px; line-height: 1; }
.map-counter span { color: #7a4a41; font-size: 10px; letter-spacing: 0.1em; }

.discussion-list { display: grid; gap: 1px; background: rgba(139, 0, 0, 0.19); border: 1px solid rgba(139, 0, 0, 0.21); }
.discussion-item { background: #0b0707; }
.discussion-item__head {
  display: grid;
  grid-template-columns: 95px minmax(0, 1fr) 80px;
  gap: 16px;
  align-items: center;
  width: 100%;
  min-height: 64px;
  padding: 14px 18px;
  border: 0;
  background: transparent;
  color: inherit;
  text-align: left;
}
.discussion-item__head:hover { background: rgba(139, 0, 0, 0.09); }
.discussion-item__user { color: #a6705f; font-size: 10px; }
.discussion-item__title { color: #b49a7c; font-size: 12px; line-height: 1.55; }
.discussion-item__reply { color: #664b40; font-family: var(--mono); font-size: 8px; text-align: right; }
.discussion-item__body { display: none; padding: 0 18px 18px 129px; }
.discussion-item.is-open .discussion-item__body { display: block; }
.discussion-item__body p { margin: 0; padding-top: 12px; border-top: 1px solid rgba(139, 0, 0, 0.18); color: #7f6757; font-size: 11px; line-height: 1.95; white-space: pre-line; }

.vault-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.vault-card { padding: 22px; border: 1px solid rgba(139, 0, 0, 0.29); background: rgba(10, 6, 6, 0.53); }
.vault-card h2 { margin: 0 0 7px; color: #b69a79; font-size: 16px; font-weight: 400; letter-spacing: 0.1em; }
.vault-card p { margin: 0 0 14px; color: #b3967f; font-size: 11px; line-height: 1.85; }
.vault-card .btn { width: 100%; }
.vault-card.is-locked { opacity: 0.5; }
.vault-note { margin-top: 15px; color: #58413a; font-size: 9px; line-height: 1.8; }

.message-bubble {
  max-width: 80%;
  margin-bottom: 11px;
  padding: 10px 13px;
  border: 1px solid rgba(139, 0, 0, 0.22);
  background: rgba(139, 0, 0, 0.07);
  color: #c0a58b;
  font-size: 11px;
  line-height: 1.8;
}
.message-bubble.is-mine { margin-left: auto; border-color: rgba(184, 134, 11, 0.22); background: rgba(184, 134, 11, 0.06); color: #a9987b; }
.message-bubble .from { display: block; margin-bottom: 4px; color: #9c7362; font-family: var(--mono); font-size: 7px; letter-spacing: 0.1em; }

/* scroll detail */
.hell-detail { position: relative; z-index: 2; width: min(850px, calc(100% - 42px)); margin: 0 auto; padding: 28px 0 90px; }
.hell-detail__back { margin-bottom: 18px; }
.hell-detail__back button { border: 0; background: none; color: #a07868; font-size: 10px; }
.hell-detail__back button:hover { color: #b68d73; }
.scroll-sheet {
  position: relative;
  padding: clamp(28px, 5vw, 58px);
  border: 1px solid rgba(139, 0, 0, 0.27);
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.018), transparent 10%, transparent 90%, rgba(0, 0, 0, 0.2)),
    rgba(10, 6, 5, 0.56);
  box-shadow: inset 0 0 100px rgba(0, 0, 0, 0.36);
}
.scroll-sheet::before, .scroll-sheet::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(184, 134, 11, 0.3), transparent);
}
.scroll-sheet::before { top: 16px; }
.scroll-sheet::after { bottom: 16px; }
.scroll-sheet h1 { margin: 0 0 7px; color: #cfb18a; font-family: var(--serif); font-size: clamp(28px, 4vw, 42px); font-weight: 400; letter-spacing: 0.18em; }
.scroll-sheet .sub { margin: 0 0 30px; color: #69443e; font-family: var(--mono); font-size: 8px; letter-spacing: 0.16em; }
.scroll-body { color: #ab937b; font-size: 14px; line-height: 2.25; letter-spacing: 0.04em; white-space: pre-line; }
.scroll-body p { margin: 0 0 15px; }
.scroll-body .emphasis { color: #d0ae83; font-family: var(--kai); font-size: 1.1em; }
.scroll-body .red { color: #c06b60; }

.scroll-cipher { margin-top: 28px; padding: 20px; border: 1px solid rgba(139, 0, 0, 0.3); background: rgba(0, 0, 0, 0.3); }
.scroll-cipher .cipher { justify-content: center; }
.scroll-cipher .cipher span { width: 48px; height: 55px; border-color: rgba(139, 0, 0, 0.36); background: rgba(18, 8, 8, 0.7); color: #c08a7f; font-size: 21px; }
.scroll-cipher .puzzle-note { border-left-color: #7d4c46; background: rgba(139, 0, 0, 0.08); color: #987064; }
.scroll-cipher .field { border-color: rgba(139, 0, 0, 0.35); background: rgba(0, 0, 0, 0.4); color: #d7b5a6; text-align: center; letter-spacing: 0.26em; }
.scroll-cipher .field:focus { border-color: #9a3c3c; }
.scroll-cipher .btn { background: rgba(91, 7, 7, 0.65); border-color: rgba(139, 0, 0, 0.62); }

.revealed-scripture { margin-top: 28px; padding: 26px; border: 1px solid rgba(184, 134, 11, 0.25); background: rgba(184, 134, 11, 0.035); }
.revealed-scripture .seal { margin-bottom: 16px; color: #a78655; font-family: var(--mono); font-size: 8px; letter-spacing: 0.22em; }
.revealed-scripture p { margin: 0 0 16px; color: #c0a77f; font-family: var(--kai); font-size: 15px; line-height: 2.1; letter-spacing: 0.05em; }
.revealed-scripture p:last-child { margin-bottom: 0; }

.hidden-sections { display: grid; gap: 12px; margin-top: 26px; }
.hidden-note { border: 1px solid rgba(139, 0, 0, 0.23); background: rgba(9, 5, 5, 0.45); }
.hidden-note summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 50px; padding: 11px 17px; color: #a0896f; font-size: 11px; cursor: pointer; list-style: none; }
.hidden-note summary::-webkit-details-marker { display: none; }
.hidden-note summary::after { content: "+"; color: #68443e; font-family: var(--mono); }
.hidden-note[open] summary::after { content: "−"; }
.hidden-note .hidden-note__body { padding: 0 17px 18px; color: #8c705c; font-size: 11px; line-height: 2; white-space: pre-line; border-top: 1px solid rgba(139, 0, 0, 0.17); padding-top: 14px; }

/* final door */
.screen--finaldoor {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background:
    radial-gradient(ellipse at 50% 56%, rgba(108, 4, 4, 0.29), transparent 48%),
    #060303;
  color: #c2a589;
  isolation: isolate;
}
.finaldoor-main { flex: 1; display: grid; place-items: center; width: min(760px, calc(100% - 36px)); margin: 0 auto; padding: 35px 0 90px; text-align: center; }
.door-wrap { position: relative; width: min(330px, 72vw); margin: 0 auto 28px; }
.door-wrap::before {
  content: "";
  position: absolute;
  inset: -18% -35%;
  background: radial-gradient(ellipse, rgba(139, 0, 0, 0.15), transparent 68%);
  filter: blur(16px);
}
.door {
  position: relative;
  height: min(430px, 52vh);
  border: 1px solid rgba(139, 0, 0, 0.5);
  border-radius: 48% 48% 0 0 / 12% 12% 0 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.03), transparent 16%, transparent 84%, rgba(0, 0, 0, 0.5)),
    repeating-linear-gradient(90deg, #130807 0, #130807 22%, #080404 22.5%, #080404 25%),
    #100606;
  box-shadow: inset 0 0 55px rgba(0, 0, 0, 0.7), 0 0 40px rgba(139, 0, 0, 0.1);
}
.door::before {
  content: "";
  position: absolute;
  top: 36%;
  bottom: 0;
  left: 50%;
  width: 1px;
  background: rgba(139, 0, 0, 0.3);
}
.door::after {
  content: "74";
  position: absolute;
  top: 46%;
  left: 50%;
  color: rgba(158, 68, 58, 0.28);
  font-family: var(--serif);
  font-size: 35px;
  letter-spacing: 0.15em;
  transform: translate(-50%, -50%);
}
.door-sigil {
  position: absolute;
  top: 16%;
  left: 50%;
  width: 54px;
  height: 54px;
  transform: translateX(-50%);
  opacity: 0.52;
}
.finaldoor-title { margin: 0 0 8px; color: #d2b18f; font-family: var(--serif); font-size: clamp(29px, 4vw, 42px); font-weight: 400; letter-spacing: 0.3em; text-indent: 0.3em; }
.finaldoor-sub { margin: 0 0 26px; color: #a57a6c; font-family: var(--mono); font-size: 8px; letter-spacing: 0.18em; }
.finaldoor-clues { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-bottom: 22px; }
.finaldoor-clues .clue-seal { padding: 5px 9px; border: 1px solid rgba(139, 0, 0, 0.32); color: #b28f78; font-family: var(--mono); font-size: 8px; letter-spacing: 0.06em; }
.finaldoor-clues .clue-seal.is-missing { color: #4f3934; border-color: rgba(139, 0, 0, 0.15); }
.finaldoor-form { width: min(370px, 100%); margin: 0 auto; }
.finaldoor-form .field { text-align: center; border-color: rgba(139, 0, 0, 0.39); background: rgba(0, 0, 0, 0.36); color: #cdb29a; letter-spacing: 0.15em; }
.finaldoor-form .btn { width: 100%; margin-top: 11px; }
.finaldoor-note { margin: 17px 0 0; color: #9c7466; font-family: var(--kai); font-size: 10px; line-height: 1.8; }

/* ---------- corridor ---------- */
.screen--corridor {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100svh;
  overflow: hidden;
  background: #020202;
  color: #d0c8bd;
  isolation: isolate;
}
.corridor-scene { position: absolute; inset: 0; overflow: hidden; }
.corridor-floor {
  position: absolute;
  left: -30%;
  right: -30%;
  bottom: -10%;
  height: 68%;
  background:
    linear-gradient(180deg, rgba(28, 32, 31, 0.34), rgba(6, 7, 7, 0.92)),
    repeating-linear-gradient(90deg, transparent 0, transparent 11.5%, rgba(130, 139, 136, 0.08) 11.8%, transparent 12.1%),
    #111414;
  transform: perspective(500px) rotateX(67deg);
  transform-origin: bottom center;
  filter: blur(0.5px);
}
.corridor-ceiling {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 33%;
  background:
    linear-gradient(180deg, rgba(2, 2, 2, 0.9), rgba(37, 42, 41, 0.15)),
    repeating-linear-gradient(90deg, transparent 0, transparent 12%, rgba(159, 170, 166, 0.05) 12.2%, transparent 12.5%);
  transform: perspective(520px) rotateX(-43deg);
  transform-origin: top center;
}
.corridor-wall {
  position: absolute;
  top: 15%;
  bottom: 10%;
  width: 48%;
  background:
    linear-gradient(90deg, #0b0d0c, #181c1b 48%, #0b0d0c),
    repeating-linear-gradient(0deg, transparent 0, transparent 25%, rgba(255, 255, 255, 0.05) 25.4%, transparent 25.8%);
  filter: brightness(0.65);
  opacity: 0.72;
}
.corridor-wall::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(0deg, transparent 0, transparent 48px, rgba(0, 0, 0, 0.4) 49px);
}
.corridor-wall--left { left: 0; transform: perspective(450px) rotateY(34deg); transform-origin: left center; }
.corridor-wall--right { right: 0; transform: perspective(450px) rotateY(-34deg); transform-origin: right center; }

.corridor-light {
  position: absolute;
  top: 5%;
  left: 50%;
  width: 34px;
  height: 9px;
  border-radius: 50%;
  background: #d9ddd4;
  box-shadow: 0 0 22px 9px rgba(226, 235, 222, 0.58), 0 0 110px 40px rgba(186, 201, 184, 0.13);
  transform: translateX(-50%);
  animation: lightFlicker 7s infinite;
}
.corridor-light:nth-child(2) { top: 15%; width: 19px; opacity: 0.55; animation-delay: 1.3s; }
.corridor-light:nth-child(3) { top: 26%; width: 12px; opacity: 0.33; animation-delay: 2.5s; }

@keyframes lightFlicker {
  0%, 9%, 12%, 15%, 100% { opacity: 1; }
  10%, 13% { opacity: 0.12; }
  11%, 14% { opacity: 0.55; }
  57% { opacity: 0.78; }
  58% { opacity: 0.2; }
  59% { opacity: 1; }
}

.corridor-doors { position: absolute; top: 28%; left: 50%; width: min(550px, 74vw); height: 52%; transform: translateX(-50%); }
.corridor-door {
  position: absolute;
  top: 8%;
  bottom: 8%;
  width: 21%;
  border: 1px solid rgba(132, 142, 136, 0.14);
  background: linear-gradient(180deg, #1b1e1c, #0b0d0c);
  box-shadow: inset 0 0 30px rgba(0, 0, 0, 0.75);
  opacity: 0.85;
}
.corridor-door--left { left: 0; transform: perspective(400px) rotateY(19deg); transform-origin: left; }
.corridor-door--right { right: 0; transform: perspective(400px) rotateY(-19deg); transform-origin: right; }
.corridor-door::before {
  content: "";
  position: absolute;
  top: 13%;
  left: 21%;
  width: 58%;
  height: 48%;
  border: 1px solid rgba(175, 188, 180, 0.09);
  background: rgba(130, 143, 136, 0.04);
  box-shadow: inset 0 0 18px rgba(0, 0, 0, 0.65);
}
.corridor-door::after {
  content: "";
  position: absolute;
  top: 52%;
  right: 12%;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: #6f5a4f;
}
.corridor-door .number { position: absolute; top: 6%; left: 9%; color: #3f4a45; font-family: var(--mono); font-size: 7px; }
.corridor-figure {
  position: absolute;
  top: 40%;
  width: 34px;
  height: 105px;
  background: linear-gradient(180deg, #0a0d0c 20%, #141918 70%, transparent 100%);
  filter: blur(4px);
  opacity: 0.38;
}
.corridor-figure::before {
  content: "";
  position: absolute;
  top: -20px;
  left: 50%;
  width: 18px;
  height: 20px;
  border-radius: 48% 48% 42% 42%;
  background: #080b0a;
  transform: translateX(-50%);
}
.corridor-figure--left { left: 12%; }
.corridor-figure--right { right: 12%; transform: scaleX(-1); }
.corridor-figure.is-clear { opacity: 0.78; filter: blur(0.7px); }
.corridor-figure--left.is-clear { box-shadow: 0 0 30px rgba(43, 108, 139, 0.09); }
.corridor-figure--right.is-clear { box-shadow: 0 0 30px rgba(148, 108, 52, 0.08); }

.corridor-nurse {
  position: absolute;
  top: 30%;
  left: 50%;
  width: 40px;
  height: 104px;
  transform: translateX(-50%);
  background: linear-gradient(180deg, #070909 10%, #101312 60%, transparent 100%);
  filter: blur(1.5px);
  opacity: 0.67;
}
.corridor-nurse::before {
  content: "";
  position: absolute;
  top: -25px;
  left: 50%;
  width: 24px;
  height: 28px;
  border-radius: 46% 46% 40% 40%;
  background: #080a0a;
  transform: translateX(-50%);
}
.corridor-nurse::after {
  content: "";
  position: absolute;
  top: 32%;
  left: 66%;
  width: 19px;
  height: 25px;
  border: 1px solid rgba(184, 168, 128, 0.22);
  background: rgba(165, 150, 112, 0.1);
  transform: rotate(-12deg);
}
.corridor-mist { position: absolute; inset: 0; background: radial-gradient(ellipse at 50% 60%, transparent 12%, rgba(0, 0, 0, 0.82) 78%); pointer-events: none; }
.corridor-hud { position: absolute; top: 18px; left: 20px; z-index: 4; color: #7c8780; font-family: var(--mono); font-size: 8px; letter-spacing: 0.14em; }
.corridor-hud .rec { display: inline-block; width: 5px; height: 5px; margin-right: 6px; border-radius: 50%; background: #9e2525; box-shadow: 0 0 6px #b5121b; animation: blink 1.6s infinite; }
.corridor-hud--right { left: auto; right: 20px; text-align: right; }
.corridor-ui { position: relative; z-index: 5; display: flex; flex-direction: column; justify-content: flex-end; flex: 1; width: min(750px, calc(100% - 36px)); margin: 0 auto; padding: 110px 0 96px; }
.corridor-dialogue {
  min-height: 150px;
  padding: 22px 24px;
  border-left: 2px solid rgba(139, 0, 0, 0.66);
  background: linear-gradient(90deg, rgba(8, 8, 8, 0.9), rgba(8, 8, 8, 0.15));
}
.corridor-dialogue .who { margin-bottom: 7px; color: #8e7461; font-family: var(--mono); font-size: 8px; letter-spacing: 0.18em; }
.corridor-dialogue .line { margin: 0; color: #cbc4ba; font-family: var(--kai); font-size: clamp(17px, 2.3vw, 23px); line-height: 1.9; letter-spacing: 0.06em; }
.corridor-dialogue .line .blood { color: #b6443d; }
.corridor-controls { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; margin-top: 14px; }
.corridor-step { color: #7f8881; font-family: var(--mono); font-size: 8px; letter-spacing: 0.12em; align-self: center; }

/* ---------- terminal ---------- */
.screen--terminal {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
  background: #010402;
  color: #71d997;
  font-family: var(--mono);
  isolation: isolate;
}
.screen--terminal::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(0deg, transparent 0, transparent 3px, rgba(63, 219, 119, 0.025) 4px),
    radial-gradient(ellipse at 50% 50%, transparent 40%, rgba(0, 0, 0, 0.56) 100%);
  z-index: 4;
}
.screen--terminal::after {
  content: "74";
  position: fixed;
  top: 50%;
  left: 50%;
  z-index: 0;
  transform: translate(-50%, -48%);
  color: rgba(75, 226, 131, 0.022);
  font-family: var(--serif);
  font-size: min(54vw, 680px);
  line-height: 1;
  letter-spacing: 0.06em;
  pointer-events: none;
}

.term-head {
  position: relative;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 13px 18px;
  border-bottom: 1px solid rgba(86, 224, 145, 0.21);
  background: rgba(2, 9, 4, 0.8);
}
.term-head__left { display: flex; align-items: center; gap: 12px; color: #4caf72; font-size: 10px; letter-spacing: 0.06em; }
.term-head__left .prompt { color: #9bf2bd; }
.term-head__right { color: #6abb85; font-size: 9px; text-align: right; white-space: nowrap; }
.term-head__right strong { color: #b3f7cc; font-weight: 500; }
.term-wrap { position: relative; z-index: 5; display: flex; flex-direction: column; flex: 1; width: min(960px, calc(100% - 30px)); min-height: 0; margin: 0 auto; padding: 18px 0 0; }
.term-body { flex: 1; min-height: 0; overflow-y: auto; padding: 0 5px 20px; scrollbar-width: thin; scrollbar-color: #1c5131 #010402; }
.term-intro { margin-bottom: 20px; padding-bottom: 14px; border-bottom: 1px dashed rgba(86, 224, 145, 0.16); color: #62bc7f; font-size: 10px; line-height: 1.9; }
.term-intro .live { color: #8ce1ac; }
.term-line { margin: 0 0 12px; color: #79d597; font-size: 13px; line-height: 1.85; letter-spacing: 0.01em; animation: termLine 0.24s ease both; }
.term-line.is-it { color: #a0eeb9; }
.term-line .prefix { display: inline-block; min-width: 38px; margin-right: 8px; color: #3f7d53; font-size: 9px; letter-spacing: 0.06em; }
.term-line.is-user { color: #5fa978; }
.term-line.is-user .prefix { color: #326143; }
.term-line.is-system { color: #39724b; font-size: 10px; }
.term-line.is-warning { color: #d58b66; }
.term-line .cursor { display: inline-block; width: 6px; height: 13px; margin-left: 2px; background: #6bdf91; animation: cursorBlink 0.9s steps(2) infinite; vertical-align: -1px; }
.term-line.is-blood { color: #cf6b5e; text-shadow: 0 0 12px rgba(181, 18, 27, 0.35); }
@keyframes termLine { from { opacity: 0; transform: translateY(3px); } to { opacity: 1; transform: none; } }

.term-choices { display: grid; gap: 8px; margin-top: 18px; padding: 16px; border: 1px solid rgba(86, 224, 145, 0.2); background: rgba(4, 13, 7, 0.8); }
.term-choices__title { margin-bottom: 2px; color: #a0eeb9; font-size: 12px; letter-spacing: 0.12em; }
.term-choice { display: grid; grid-template-columns: 24px minmax(0, 1fr); gap: 10px; padding: 11px 12px; border: 1px solid rgba(86, 224, 145, 0.16); background: transparent; color: #7ed49b; text-align: left; transition: border-color 0.2s, background 0.2s; }
.term-choice:hover { border-color: rgba(86, 224, 145, 0.58); background: rgba(86, 224, 145, 0.06); }
.term-choice:disabled { opacity: 0.38; }
.term-choice .key { color: #3f7d53; font-size: 10px; }
.term-choice .label { color: #9be6b5; font-size: 12px; }
.term-choice .sub { display: block; margin-top: 2px; color: #67a879; font-size: 9px; line-height: 1.6; }
.term-choice.is-danger { border-color: rgba(181, 18, 27, 0.3); }
.term-choice.is-danger:hover { border-color: rgba(181, 18, 27, 0.9); background: rgba(139, 0, 0, 0.12); }
.term-choice.is-danger .label { color: #d98578; }
.term-footer { position: relative; z-index: 5; flex: 0 0 auto; padding: 7px 0 calc(12px + var(--safe-bottom)); background: linear-gradient(transparent, #010402 22%); }
.term-chips { display: flex; gap: 6px; overflow-x: auto; padding: 8px 0; scrollbar-width: none; }
.term-chips::-webkit-scrollbar { display: none; }
.term-chip {
  flex: 0 0 auto;
  min-height: 36px;
  padding: 7px 11px;
  border: 1px solid rgba(86, 224, 145, 0.21);
  background: rgba(3, 11, 6, 0.8);
  color: #60a977;
  font-family: var(--mono);
  font-size: 9px;
  white-space: nowrap;
  transition: border-color 0.2s, color 0.2s;
}
.term-chip:hover { border-color: rgba(86, 224, 145, 0.62); color: #a0eeb9; }
.term-chip.is-done { opacity: 0.35; text-decoration: line-through; }
.term-input-row { display: flex; gap: 8px; align-items: stretch; padding-top: 4px; }
.term-input-row .field { flex: 1 1 auto; width: auto; min-width: 0; min-height: 44px; border-color: rgba(86, 224, 145, 0.36); background: rgba(3, 11, 6, 0.9); color: #a9f2c3; font-family: var(--mono); font-size: 12px; letter-spacing: 0.02em; }
.term-input-row .field::placeholder { color: #559867; }
.term-input-row .field:focus { border-color: rgba(86, 224, 145, 0.64); }
.term-input-row .btn { min-height: 44px; min-width: 76px; border-color: rgba(86, 224, 145, 0.42); background: transparent; color: #b0f0c5; font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em; white-space: nowrap; }
.term-input-row .btn:hover { background: rgba(86, 224, 145, 0.14); color: #c2ffda; }
.term-hint { display: flex; justify-content: space-between; gap: 12px; padding-top: 5px; color: #4d8e62; font-size: 8px; }
.term-hint .blink { animation: blink 1.8s infinite; }

@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.2; } }
@keyframes cursorBlink { 0%, 45% { opacity: 1; } 50%, 100% { opacity: 0; } }

/* ---------- ending cinema ---------- */
.screen--ending {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100svh;
  overflow: hidden;
  background: var(--black);
  color: #e0d8cc;
  isolation: isolate;
}
.ending-bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  background-position: center;
  background-size: cover;
  filter: blur(8px) saturate(0.55);
  opacity: 0.21;
  transform: scale(1.06);
}
.ending-bg--bad { background-image: url("../assets/panyang-hq.jpg"); }
.ending-bg--fake,
.ending-bg--middle,
.ending-bg--true { background-image: url("../assets/operating-room.jpg"); }
.ending-bg--true { filter: blur(9px) saturate(0.7) brightness(1.2); opacity: 0.19; }
.ending-veil { position: absolute; inset: 0; z-index: -1; background: radial-gradient(ellipse at 50% 40%, rgba(9, 7, 6, 0.16), rgba(4, 4, 4, 0.96) 74%); }
.ending-veil--red { background: radial-gradient(ellipse at 50% 35%, rgba(72, 2, 2, 0.34), rgba(3, 2, 2, 0.96) 74%); }
.ending-veil--blue { background: radial-gradient(ellipse at 50% 35%, rgba(9, 34, 42, 0.33), rgba(2, 4, 5, 0.96) 75%); }

.ending-top { position: relative; z-index: 5; display: flex; justify-content: space-between; gap: 20px; width: min(1100px, calc(100% - 38px)); margin: 0 auto; padding: 19px 0; color: #5b5148; font-family: var(--mono); font-size: 8px; letter-spacing: 0.15em; }
.ending-top .rec { color: #9d3833; }
.ending-stage { position: relative; z-index: 2; display: flex; flex-direction: column; justify-content: center; flex: 1; width: min(900px, calc(100% - 44px)); margin: 0 auto; padding: 42px 0 88px; }
.ending-chapter { margin-bottom: 20px; color: #6a5d50; font-family: var(--mono); font-size: 9px; letter-spacing: 0.2em; }
.ending-chapter strong { color: #9f8360; font-weight: 400; }
.ending-line {
  max-width: 800px;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(20px, 3.1vw, 38px);
  font-weight: 400;
  line-height: 1.8;
  letter-spacing: 0.07em;
  animation: lineIn 0.6s ease both;
}
.ending-line .who { display: block; margin-bottom: 8px; color: #7b6858; font-family: var(--mono); font-size: 9px; letter-spacing: 0.18em; }
.ending-line .text { color: #d5c9b8; }
.ending-line--blood .text { color: #ad3c35; text-shadow: 0 0 25px rgba(139, 0, 0, 0.4); }
.ending-line--green .text { color: #65b98b; }
.ending-line--badge .text { color: #c39b61; letter-spacing: 0.2em; }
.ending-line--small { font-size: clamp(17px, 2.3vw, 25px); }
.ending-line--whisper { color: #7d6e60; font-size: clamp(16px, 2vw, 20px); }
.ending-caption { margin-top: 24px; color: #65584b; font-family: var(--mono); font-size: 9px; letter-spacing: 0.08em; }
.ending-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 32px; }
.ending-actions--end { justify-content: flex-end; }
.heart-count .btn { width: auto; min-width: 220px; }
.ending-progress { display: flex; gap: 4px; margin-top: 28px; }
.ending-progress span { width: 22px; height: 2px; background: #2c2722; }
.ending-progress span.is-on { background: #8b0000; }
.ending-skip { margin-top: 20px; border: 0; background: transparent; color: #504840; font-size: 9px; letter-spacing: 0.13em; text-align: left; }
.ending-skip:hover { color: #9f8770; }

@keyframes lineIn { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }

.cine-controls { position: relative; z-index: 5; display: flex; align-items: center; justify-content: space-between; gap: 16px; width: min(900px, calc(100% - 44px)); margin: 0 auto; padding-bottom: calc(28px + var(--safe-bottom)); }
.cine-controls .hint { color: #4d453e; font-family: var(--mono); font-size: 8px; letter-spacing: 0.08em; }
.cine-controls .hint .key { display: inline-grid; place-items: center; width: 17px; height: 17px; margin-right: 5px; border: 1px solid #3b3530; font-size: 7px; }

.ending-card { position: relative; z-index: 3; width: min(760px, calc(100% - 40px)); margin: auto; padding: 50px 0 60px; text-align: center; }
.ending-card__no { color: #795d45; font-family: var(--mono); font-size: 10px; letter-spacing: 0.32em; }
.ending-card h1 { margin: 15px 0 5px; color: #ddcbb4; font-family: var(--serif); font-size: clamp(43px, 7vw, 75px); font-weight: 400; letter-spacing: 0.18em; text-indent: 0.18em; line-height: 1.2; }
.ending-card__sub { margin: 0 0 24px; color: #816d59; font-family: var(--kai); font-size: 16px; letter-spacing: 0.12em; }
.ending-card__desc { max-width: 520px; margin: 0 auto 30px; color: #908174; font-size: 13px; line-height: 2; }
.ending-card__tag { display: inline-block; margin-bottom: 22px; padding: 5px 10px; border: 1px solid rgba(184, 134, 11, 0.27); color: #a78b61; font-family: var(--mono); font-size: 8px; letter-spacing: 0.18em; }
.ending-card__tag--green { border-color: rgba(76, 166, 116, 0.35); color: #72b993; }
.ending-card__actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 22px; }
.ending-card__collection { margin-top: 30px; color: #5f5449; font-family: var(--mono); font-size: 8px; letter-spacing: 0.12em; }
.ending-card__collection strong { color: #a58b66; font-weight: 400; }

/* bad location */
.location-panel { width: min(560px, 100%); margin: 28px auto 0; padding: 22px; border: 1px solid rgba(139, 0, 0, 0.37); background: rgba(15, 4, 4, 0.8); text-align: left; }
.location-panel .status { margin-bottom: 10px; color: #9d5a51; font-family: var(--mono); font-size: 8px; letter-spacing: 0.16em; }
.location-panel .city { color: #d0ad8f; font-family: var(--serif); font-size: 24px; letter-spacing: 0.12em; }
.location-panel .address { margin-top: 5px; color: #916f62; font-size: 11px; line-height: 1.8; }
.location-panel .disclaimer { margin-top: 10px; color: #5f4540; font-size: 8px; line-height: 1.7; }
.location-panel .btn { margin-top: 14px; }

.heart-count { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px; margin: 25px 0; }
.heart-orb {
  position: relative;
  display: grid;
  place-items: center;
  width: 88px;
  height: 88px;
  border: 1px solid rgba(181, 18, 27, 0.35);
  border-radius: 50%;
  color: #c06058;
  font-family: var(--mono);
  font-size: 28px;
  animation: heartBeat 1.2s ease-in-out infinite;
}
.heart-orb::before, .heart-orb::after {
  content: "";
  position: absolute;
  inset: -7px;
  border: 1px solid rgba(139, 0, 0, 0.17);
  border-radius: 50%;
}
.heart-orb::after { inset: -16px; opacity: 0.55; }
@keyframes heartBeat {
  0%, 100% { transform: scale(1); box-shadow: 0 0 0 rgba(139, 0, 0, 0); }
  10% { transform: scale(1.08); box-shadow: 0 0 28px rgba(139, 0, 0, 0.25); }
  20% { transform: scale(1); }
  30% { transform: scale(1.05); }
  45% { transform: scale(1); }
}

.countdown { margin: 28px 0; color: #b04b43; font-family: var(--mono); font-size: clamp(52px, 12vw, 110px); line-height: 1; letter-spacing: 0.06em; text-align: center; }

/* ---------- ending gallery modal ---------- */
.gallery-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.gallery-item { padding: 14px; border: 1px solid rgba(184, 134, 11, 0.2); background: rgba(255, 255, 255, 0.02); }
.gallery-item h3 { margin: 0 0 4px; color: #c7b394; font-size: 13px; font-weight: 400; }
.gallery-item p { margin: 0; color: #73665a; font-size: 9px; line-height: 1.7; }
.gallery-item.is-locked { opacity: 0.43; }
.gallery-item.is-locked h3 { color: #665d53; }

/* ---------- panyang 12 city mini map ---------- */
.panyang-map { position: relative; min-height: 320px; overflow: hidden; border: 1px solid #dce5eb; background: #f7fafb; }
.panyang-map svg { position: absolute; inset: 6%; width: 88%; height: 88%; }
.panyang-map .node { fill: #2b8a91; }
.panyang-map .node.main { fill: #b13b3b; }
.panyang-map .label { fill: #65808c; font-family: var(--mono); font-size: 8px; }
.panyang-map .label.main { fill: #a44a44; }
.panyang-map .grid { stroke: #dfe9ee; stroke-width: 1; }

/* ---------- misc ---------- */
.empty-state { padding: 50px 20px; text-align: center; color: #756b60; }
.empty-state .symbol { margin-bottom: 10px; color: #4b4239; font-size: 30px; }
.empty-state p { margin: 0; font-size: 11px; line-height: 1.8; }

.canvas-heart {
  width: 100%;
  height: 92px;
  display: block;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-5px); }
  40% { transform: translateX(5px); }
  60% { transform: translateX(-3px); }
  80% { transform: translateX(3px); }
}

@keyframes blinkText {
  0%, 45%, 100% { opacity: 1; }
  50%, 55% { opacity: 0.24; }
}

/* ---------- patient / engineer portals ---------- */
.screen--patient {
  background:
    radial-gradient(ellipse at 80% 0, rgba(37, 104, 124, 0.12), transparent 40%),
    radial-gradient(ellipse at 20% 100%, rgba(18, 64, 79, 0.12), transparent 42%),
    #050d12;
  color: #c9dce4;
  font-family: var(--sans);
  min-height: 100vh;
}

.screen--engineer {
  background:
    radial-gradient(ellipse at 80% 0, rgba(126, 95, 48, 0.09), transparent 38%),
    #0c0f10;
  color: #d3d9dc;
  font-family: var(--sans);
  min-height: 100vh;
}

.portal-head {
  position: sticky;
  top: 0;
  z-index: 35;
  border-bottom: 1px solid rgba(101, 185, 201, 0.2);
  background: rgba(5, 17, 23, 0.94);
  backdrop-filter: blur(13px);
}

.portal-head--patient { border-bottom-color: rgba(80, 175, 194, 0.22); }
.portal-head--engineer { border-bottom-color: rgba(166, 143, 99, 0.22); background: rgba(12, 15, 16, 0.94); }

.portal-head__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: min(1160px, calc(100% - 40px));
  min-height: 62px;
  margin: 0 auto;
}

.portal-brand { display: flex; align-items: center; gap: 12px; }
.portal-brand .mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(93, 201, 216, 0.36);
  color: #7dd7e6;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
}
.portal-head--engineer .portal-brand .mark { border-color: rgba(196, 161, 99, 0.4); color: #d0ab6c; }
.portal-brand strong { display: block; color: #cfe8ee; font-family: var(--mono); font-size: 12px; letter-spacing: 0.06em; }
.portal-brand span { display: block; color: #5e8591; font-size: 8px; letter-spacing: 0.07em; }
.portal-head--engineer .portal-brand strong { color: #d5dde0; }
.portal-head--engineer .portal-brand span { color: #7c7e78; }

.portal-live {
  display: flex;
  align-items: center;
  gap: 7px;
  color: #6db6c3;
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.12em;
  white-space: nowrap;
}
.portal-head--engineer .portal-live { color: #a98d61; }

.live-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #55d6b0;
  box-shadow: 0 0 9px rgba(85, 214, 176, 0.8);
  animation: blink 1.7s infinite;
}
.portal-head--engineer .live-dot { background: #d1a158; box-shadow: 0 0 9px rgba(209, 161, 88, 0.7); }

.portal-exit {
  appearance: none;
  min-height: 38px;
  padding: 7px 11px;
  border: 1px solid rgba(96, 157, 172, 0.3);
  background: transparent;
  color: #7fa9b3;
  font-size: 9px;
  letter-spacing: 0.05em;
  transition: border-color 0.2s, color 0.2s;
}
.portal-exit:hover { border-color: #6eb6c5; color: #c2edf4; }
.portal-head--engineer .portal-exit { border-color: rgba(166, 143, 99, 0.3); color: #a18f70; }
.portal-head--engineer .portal-exit:hover { border-color: #c7a05c; color: #efd5a4; }

.portal-tabs {
  display: flex;
  gap: 2px;
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
  overflow-x: auto;
  scrollbar-width: none;
}
.portal-tabs::-webkit-scrollbar { display: none; }
.portal-tabs button {
  appearance: none;
  flex: 0 0 auto;
  min-height: 44px;
  padding: 8px 17px;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: #5b7f88;
  font-size: 11px;
  letter-spacing: 0.05em;
  white-space: nowrap;
}
.portal-tabs button:hover { color: #a7d6df; }
.portal-tabs button.is-active { border-bottom-color: #48b3c4; color: #b9edf4; }
.portal-head--engineer .portal-tabs button { color: #7b7c77; }
.portal-head--engineer .portal-tabs button:hover { color: #d6c19b; }
.portal-head--engineer .portal-tabs button.is-active { border-bottom-color: #c39a5a; color: #e5c78e; }

.portal-wrap {
  width: min(1000px, calc(100% - 40px));
  margin: 0 auto;
  padding: 28px 0 60px;
}
.portal-wrap--engineer { width: min(1020px, calc(100% - 40px)); }

.portal-vitals {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  align-items: center;
  gap: 24px;
  margin-bottom: 22px;
  padding: 24px;
  border: 1px solid rgba(75, 157, 174, 0.22);
  background:
    linear-gradient(135deg, rgba(26, 95, 108, 0.12), rgba(4, 14, 18, 0.4)),
    #07151b;
}
.portal-vitals__copy h1 { margin: 0 0 4px; color: #d3edf2; font-family: var(--serif); font-size: 34px; font-weight: 500; letter-spacing: 0.12em; }
.portal-vitals__copy p { margin: 0; color: #638a93; font-size: 10px; line-height: 1.7; }
.portal-vitals__copy .eyebrow { color: #5a9aa7; }

.ecg-wrap {
  position: relative;
  min-width: 0;
  padding: 11px 12px 8px;
  border: 1px solid rgba(72, 179, 196, 0.15);
  background: rgba(1, 8, 11, 0.55);
  overflow: hidden;
}
.ecg { display: block; width: 100%; height: 105px; color: #61d3c2; }
.ecg-bg { opacity: 0.18; }
.ecg-dot { stroke-dasharray: 1800; stroke-dashoffset: 1800; animation: ecgDraw 5s linear infinite; filter: drop-shadow(0 0 4px rgba(97, 211, 194, 0.55)); }
@keyframes ecgDraw { to { stroke-dashoffset: -1800; } }
.ecg-meta { display: flex; justify-content: space-between; gap: 10px; color: #4e7b85; font-family: var(--mono); font-size: 7px; letter-spacing: 0.08em; }
.ecg-meta .ecg-count { margin-left: auto; color: #34616a; }
.ecg-meta .ecg-count b { color: #62aeb8; font-weight: 400; }

.portal-section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin: 26px 0 14px; padding-bottom: 11px; border-bottom: 1px solid rgba(94, 177, 192, 0.2); }
.portal-section-head h2 { margin: 0; color: #c1e1e8; font-family: var(--serif); font-size: 22px; font-weight: 500; letter-spacing: 0.12em; }
.portal-section-head p { margin: 0; color: #52747d; font-family: var(--mono); font-size: 7px; letter-spacing: 0.12em; text-align: right; }
.portal-head--engineer + .portal-wrap .portal-section-head,
.portal-wrap--engineer .portal-section-head { border-bottom-color: rgba(172, 147, 102, 0.2); }
.portal-wrap--engineer .portal-section-head h2 { color: #d8d2c7; }
.portal-wrap--engineer .portal-section-head p { color: #756f62; }

.diary-list { display: grid; gap: 9px; }
.diary-entry {
  border: 1px solid rgba(77, 151, 165, 0.2);
  background: linear-gradient(90deg, rgba(15, 45, 53, 0.37), rgba(6, 17, 21, 0.33));
}
.diary-entry summary {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr) 86px 18px;
  align-items: center;
  gap: 16px;
  min-height: 66px;
  padding: 12px 17px;
  list-style: none;
  cursor: pointer;
}
.diary-entry summary::-webkit-details-marker { display: none; }
.diary-entry summary::after { content: "+"; color: #548b95; font-family: var(--mono); font-size: 13px; text-align: right; }
.diary-entry[open] summary::after { content: "−"; }
.diary-entry__date { color: #5c8b95; font-family: var(--mono); font-size: 8px; line-height: 1.7; letter-spacing: 0.04em; }
.diary-entry summary strong { color: #b9dbe1; font-family: var(--serif); font-size: 15px; font-weight: 500; letter-spacing: 0.08em; }
.diary-entry__mark { color: #4f7780; font-family: var(--mono); font-size: 7px; letter-spacing: 0.08em; text-align: right; }
.diary-entry__body { padding: 0 20px 22px; border-top: 1px solid rgba(80, 157, 171, 0.14); padding-top: 17px; }
.diary-entry__body p { margin: 0 0 8px; color: #8fb2bb; font-family: var(--serif); font-size: 12px; line-height: 2; }
.diary-entry__body p:last-child { margin-bottom: 0; }
.morse-strip { display: flex; align-items: center; justify-content: space-between; gap: 15px; flex-wrap: wrap; margin-top: 15px; padding-top: 14px; border-top: 1px dashed rgba(87, 171, 186, 0.18); }
.morse-strip span { color: #b4da77; font-family: var(--mono); font-size: 17px; letter-spacing: 0.2em; }

.chat-window { border: 1px solid rgba(76, 155, 170, 0.23); background: #061117; }
.chat-window__head { display: flex; align-items: center; gap: 9px; padding: 12px 16px; border-bottom: 1px solid rgba(76, 155, 170, 0.17); color: #9bc6ce; font-family: var(--mono); font-size: 9px; letter-spacing: 0.07em; }
.chat-window__head span:last-child { margin-left: auto; color: #4d737d; }
.chat-window__body { padding: 18px; }
.chat-bubble {
  position: relative;
  max-width: 80%;
  margin-bottom: 11px;
  padding: 10px 13px;
  border: 1px solid rgba(76, 155, 170, 0.21);
  background: rgba(20, 62, 73, 0.2);
  color: #9fc9d1;
  font-size: 11px;
  line-height: 1.8;
}
.chat-bubble .who { display: block; margin-bottom: 3px; color: #53828c; font-family: var(--mono); font-size: 7px; letter-spacing: 0.08em; }
.chat-bubble.is-mine { margin-left: auto; border-color: rgba(202, 170, 104, 0.22); background: rgba(118, 83, 30, 0.1); color: #c5b896; }
.chat-bubble.is-mine .who { color: #927b57; }
.chat-choice { margin-top: 20px; padding-top: 15px; border-top: 1px solid rgba(76, 155, 170, 0.16); }
.chat-choice p { margin: 0 0 10px; color: #86adb6; font-size: 10px; }
.chat-choice .btn { margin: 0 6px 8px 0; }
.chat-choice > span { display: block; color: #4f737c; font-size: 8px; }
.chat-status { margin-top: 16px; padding: 10px 12px; border: 1px solid rgba(78, 157, 105, 0.25); color: #74b58d; font-size: 9px; line-height: 1.7; }
.chat-status.is-cold { border-color: rgba(139, 116, 104, 0.25); color: #8e7f74; }

.report-list { display: grid; gap: 12px; }
.report-card { border: 1px solid rgba(76, 155, 170, 0.2); background: #061117; }
.report-card__head { display: flex; align-items: center; justify-content: space-between; gap: 15px; padding: 13px 17px; border-bottom: 1px solid rgba(76, 155, 170, 0.15); }
.report-card__head h3 { margin: 0; color: #b8d9df; font-size: 13px; font-weight: 500; }
.report-card__head span { color: #53757e; font-family: var(--mono); font-size: 8px; }
.report-card__body { padding: 16px 17px; }
.report-card__body p { margin: 0 0 7px; color: #8fb0b8; font-size: 11px; line-height: 1.9; }
.report-card__reply { padding: 13px 17px 17px; border-top: 1px dashed rgba(76, 155, 170, 0.15); background: rgba(89, 155, 125, 0.045); }
.report-card__reply strong { display: block; margin-bottom: 7px; color: #5d8c73; font-family: var(--mono); font-size: 8px; letter-spacing: 0.08em; }
.report-card__reply p { margin: 0 0 6px; color: #7ca28e; font-size: 10px; line-height: 1.85; }

.patient-card { padding: 22px; border: 1px solid rgba(76, 155, 170, 0.22); background: linear-gradient(135deg, rgba(25, 75, 86, 0.16), #061116); }
.patient-card__top { display: flex; align-items: center; gap: 14px; padding-bottom: 18px; border-bottom: 1px solid rgba(76, 155, 170, 0.16); }
.patient-avatar { display: grid; place-items: center; width: 52px; height: 52px; border: 1px solid rgba(95, 196, 208, 0.35); border-radius: 50%; color: #b8e6ea; font-family: var(--serif); font-size: 20px; }
.patient-card__top h3 { margin: 0 0 3px; color: #d1e9ed; font-size: 18px; font-weight: 500; }
.patient-card__top p { margin: 0; color: #5f858d; font-size: 10px; }
.patient-card__top .chip { margin-left: auto; }
.info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 13px 20px; padding: 19px 0 6px; }
.info-grid > div { padding-bottom: 10px; border-bottom: 1px solid rgba(76, 155, 170, 0.12); }
.info-grid span { display: block; color: #53757e; font-size: 8px; letter-spacing: 0.07em; }
.info-grid strong { display: block; margin-top: 4px; color: #a9cbd1; font-family: var(--mono); font-size: 10px; font-weight: 500; }
.patient-note { margin-top: 12px; padding: 13px 15px; border-left: 2px solid #3b8997; background: rgba(20, 77, 88, 0.18); color: #82a9b0; font-size: 10px; line-height: 1.85; }
.portal-foot { margin-top: 30px; padding-top: 14px; border-top: 1px solid rgba(76, 155, 170, 0.13); color: #41616a; font-size: 8px; line-height: 1.9; }

/* engineer palette */
.eng-hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 22px;
  padding: 24px;
  border: 1px solid rgba(166, 143, 99, 0.23);
  background: linear-gradient(110deg, rgba(92, 69, 30, 0.15), rgba(12, 15, 16, 0.6));
}
.eng-hero h1 { margin: 0 0 6px; color: #e0d8ca; font-family: var(--serif); font-size: 31px; font-weight: 500; letter-spacing: 0.12em; }
.eng-hero p { margin: 0; color: #8d8b80; font-size: 10px; line-height: 1.7; }
.eng-hero .eyebrow { color: #a58f6a; }
.eng-meter { display: flex; align-items: baseline; gap: 7px; color: #c9a465; font-family: var(--mono); white-space: nowrap; }
.eng-meter span { font-size: 48px; line-height: 1; }
.eng-meter small { font-size: 8px; letter-spacing: 0.12em; color: #7c6e55; }

.eng-section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin: 26px 0 14px; padding-bottom: 11px; border-bottom: 1px solid rgba(166, 143, 99, 0.22); }
.eng-section-head h2 { margin: 0; color: #ded8cc; font-family: var(--serif); font-size: 22px; font-weight: 500; letter-spacing: 0.08em; }
.eng-section-head p { margin: 0; color: #7c7668; font-family: var(--mono); font-size: 7px; text-align: right; }

.order-list { display: grid; gap: 8px; }
.order-card { border: 1px solid rgba(166, 143, 99, 0.2); background: #111516; }
.order-card.is-final { border-color: rgba(181, 18, 27, 0.45); }
.order-card summary {
  display: grid;
  grid-template-columns: 102px minmax(0, 1fr) 64px 18px;
  gap: 14px;
  align-items: center;
  min-height: 66px;
  padding: 12px 16px;
  list-style: none;
  cursor: pointer;
}
.order-card summary::-webkit-details-marker { display: none; }
.order-card summary::after { content: "+"; color: #8b7a55; font-family: var(--mono); font-size: 13px; text-align: right; }
.order-card[open] summary::after { content: "−"; }
.order-id { color: #b99a61; font-family: var(--mono); font-size: 9px; letter-spacing: 0.06em; }
.order-title { color: #c3c9c9; font-size: 12px; line-height: 1.5; }
.order-title small { display: block; margin-top: 3px; color: #747b7c; font-size: 8px; font-weight: 400; }
.order-status { color: #78878b; font-family: var(--mono); font-size: 8px; text-align: right; }
.order-status.is-active { color: #d08c55; }
.order-card__body { padding: 0 18px 19px; border-top: 1px solid rgba(166, 143, 99, 0.14); }
.order-card__body > p { margin: 15px 0 12px; color: #959c9c; font-size: 10px; line-height: 1.85; }
.order-log { padding: 12px 14px; border: 1px solid rgba(166, 143, 99, 0.13); background: rgba(0, 0, 0, 0.18); color: #777f7d; font-family: var(--mono); font-size: 8px; line-height: 2; }
.order-morse { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 12px; padding: 10px 12px; border-left: 2px solid #9d7b46; background: rgba(166, 143, 99, 0.06); }
.order-morse > span { color: #a88f64; font-size: 9px; }
.order-morse code { flex: 1; min-width: 180px; color: #9da39a; font-family: var(--mono); font-size: 8px; line-height: 1.7; }
.order-card__body > .btn { margin-top: 14px; }

.audio-file { margin-bottom: 18px; padding: 18px; border: 1px solid rgba(166, 143, 99, 0.22); background: #101415; }
.audio-file__head { display: flex; align-items: center; gap: 8px; color: #b8ab90; font-family: var(--mono); font-size: 8px; letter-spacing: 0.03em; }
.audio-file__head span:last-child { margin-left: auto; color: #7b7364; }
.recdot { width: 5px; height: 5px; border-radius: 50%; background: #a44a3d; animation: blink 1.5s infinite; }
.waveform { display: flex; align-items: center; gap: 2px; height: 78px; margin: 14px 0 8px; }
.waveform span { flex: 1; min-width: 1px; background: linear-gradient(180deg, #c6a66b, #735c38); opacity: 0.35; }
.waveform span:nth-child(3n) { opacity: 0.65; }
.waveform span:nth-child(5n) { opacity: 0.9; background: #b98b78; }
.audio-file__meta { display: flex; gap: 14px; flex-wrap: wrap; color: #646b6a; font-family: var(--mono); font-size: 7px; }

.recording-copy { padding: 20px; border: 1px solid rgba(166, 143, 99, 0.2); background: rgba(17, 21, 22, 0.82); }
.recording-copy > p { margin: 0 0 10px; color: #b0b3aa; font-size: 12px; line-height: 1.85; }
.eng-choice { margin-top: 20px; padding-top: 16px; border-top: 1px dashed rgba(166, 143, 99, 0.22); }
.eng-choice__prompt { color: #d4c5a8; font-family: var(--serif); font-size: 18px; letter-spacing: 0.06em; }
.eng-choice .btn { margin: 0 8px 8px 0; }
.eng-choice > span { display: block; color: #756d60; font-size: 8px; }
.eng-result { margin-top: 16px; padding: 15px; border: 1px solid rgba(157, 125, 70, 0.28); background: rgba(157, 125, 70, 0.06); }
.eng-result.is-good { border-color: rgba(93, 154, 117, 0.3); background: rgba(93, 154, 117, 0.06); }
.eng-result h3 { margin: 0 0 7px; color: #c6ad7d; font-size: 13px; font-weight: 500; }
.eng-result.is-good h3 { color: #7dbd96; }
.eng-result p { margin: 0 0 9px; color: #9b9a8c; font-size: 10px; line-height: 1.8; }
.eng-result .small { color: #7d7f78; font-size: 9px; }

.dutybook { padding: 26px 28px; border: 1px solid #c8b996; background: #dfd3b9; color: #4a4032; box-shadow: 0 15px 38px rgba(0, 0, 0, 0.35); font-family: var(--kai); }
.dutybook__head { display: flex; justify-content: space-between; gap: 20px; margin-bottom: 20px; padding-bottom: 10px; border-bottom: 1px solid rgba(82, 66, 44, 0.24); color: #5c4a31; font-family: var(--mono); font-size: 9px; letter-spacing: 0.07em; }
.dutybook p { margin: 0 0 8px; color: #504434; font-size: 14px; line-height: 1.95; border-bottom: 1px dashed rgba(82, 66, 44, 0.1); padding-bottom: 4px; }
.dutybook p.last { color: #8b2e28; font-size: 17px; letter-spacing: 0.08em; border-bottom: 0; }
.dutybook .btn { margin-top: 14px; color: #5c4a31; border-color: rgba(82, 66, 44, 0.35); }
.dutybook .btn:hover { background: rgba(82, 66, 44, 0.12); color: #3f3222; }

.eng-profile { display: flex; align-items: center; gap: 14px; padding: 20px; border: 1px solid rgba(166, 143, 99, 0.21); background: #111516; }
.eng-avatar { display: grid; place-items: center; width: 54px; height: 54px; border: 1px solid rgba(192, 155, 91, 0.35); border-radius: 50%; color: #d3b479; font-family: var(--serif); font-size: 21px; }
.eng-profile h3 { margin: 0 0 3px; color: #d5d5ca; font-size: 17px; font-weight: 500; }
.eng-profile p { margin: 0; color: #7d7d73; font-size: 9px; }
.eng-profile .chip { margin-left: auto; }
.eng-note { margin-top: 12px; padding: 14px 16px; border-left: 2px solid #9c7b48; background: rgba(157, 125, 70, 0.06); color: #968772; font-size: 10px; line-height: 1.9; }

.portal-wrap--engineer .info-grid > div { border-bottom-color: rgba(166, 143, 99, 0.13); }
.portal-wrap--engineer .info-grid span { color: #777164; }
.portal-wrap--engineer .info-grid strong { color: #bfb5a1; }
.portal-wrap--engineer .portal-foot { border-top-color: rgba(166, 143, 99, 0.14); color: #5b594f; }

@media (max-width: 760px) {
  .portal-head__inner { width: calc(100% - 26px); min-height: 54px; gap: 10px; }
  .portal-brand .mark { width: 31px; height: 31px; }
  .portal-brand strong { font-size: 10px; }
  .portal-brand span { display: none; }
  .portal-live { display: none; }
  .portal-exit { font-size: 8px; padding: 6px 8px; }
  .portal-tabs { width: calc(100% - 26px); }
  .portal-tabs button { padding: 8px 12px; font-size: 10px; }
  .portal-wrap, .portal-wrap--engineer { width: calc(100% - 26px); padding-top: 18px; }
  .portal-vitals { grid-template-columns: 1fr; gap: 14px; padding: 17px; }
  .portal-vitals__copy h1 { font-size: 28px; }
  .ecg { height: 75px; }
  .portal-section-head { margin-top: 20px; align-items: flex-start; flex-direction: column; gap: 4px; }
  .portal-section-head p { text-align: left; }
  .diary-entry summary { grid-template-columns: 78px minmax(0, 1fr) 22px; gap: 10px; padding: 11px 12px; }
  .diary-entry summary strong { font-size: 13px; }
  .diary-entry__mark { display: none; }
  .diary-entry__body { padding: 13px 14px 17px; }
  .chat-window__body { padding: 13px; }
  .chat-bubble { max-width: 92%; }
  .info-grid { grid-template-columns: 1fr 1fr; gap: 11px 14px; }
  .patient-card { padding: 16px; }
  .eng-hero { align-items: flex-start; flex-direction: column; padding: 18px; }
  .eng-hero h1 { font-size: 26px; }
  .eng-meter { position: absolute; right: 26px; opacity: 0.55; }
  .eng-meter span { font-size: 34px; }
  .eng-section-head { align-items: flex-start; flex-direction: column; gap: 4px; }
  .eng-section-head p { text-align: left; }
  .order-card summary { grid-template-columns: 78px minmax(0, 1fr) 20px; gap: 9px; padding: 11px 12px; }
  .order-id { font-size: 8px; }
  .order-title { font-size: 11px; }
  .order-status { display: none; }
  .order-card__body { padding: 0 13px 15px; }
  .audio-file { padding: 13px; }
  .waveform { height: 62px; }
  .recording-copy { padding: 15px; }
  .dutybook { padding: 20px 18px; }
  .dutybook p { font-size: 13px; }
  .eng-profile { padding: 15px; }
  .eng-profile .chip { display: none; }
}


/* back navigation on official sites */
.oas-exit {
  appearance: none;
  min-height: 30px;
  padding: 4px 7px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: transparent;
  color: rgba(255, 255, 255, 0.62);
  font-family: var(--sans);
  font-size: 9px;
  letter-spacing: 0.03em;
  transition: border-color 0.2s, color 0.2s;
}
.oas-exit:hover { border-color: rgba(255, 255, 255, 0.5); color: #fff; }

.inst-header__meta-wrap { display: flex; align-items: center; gap: 18px; }
.inst-back {
  appearance: none;
  min-height: 34px;
  padding: 5px 9px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: transparent;
  color: rgba(255, 255, 255, 0.58);
  font-family: var(--sans);
  font-size: 9px;
  white-space: nowrap;
  transition: color 0.2s, border-color 0.2s;
}
.inst-back:hover { color: #fff; border-color: rgba(255, 255, 255, 0.48); }

.forum-head__meta-wrap { display: flex; align-items: center; gap: 14px; }
.forum-back {
  appearance: none;
  min-height: 34px;
  padding: 5px 9px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: transparent;
  color: #aaa99d;
  font-family: var(--sans);
  font-size: 9px;
  white-space: nowrap;
  transition: color 0.2s, border-color 0.2s;
}
.forum-back:hover { color: #f0e8d6; border-color: rgba(255, 255, 255, 0.4); }

.hell-header__right { display: flex; align-items: center; gap: 16px; }
.hell-back {
  appearance: none;
  min-height: 32px;
  padding: 4px 8px;
  border: 1px solid rgba(139, 0, 0, 0.38);
  background: transparent;
  color: #9c7362;
  font-family: var(--sans);
  font-size: 9px;
  white-space: nowrap;
  transition: color 0.2s, border-color 0.2s;
}
.hell-back:hover { color: #d0a88e; border-color: rgba(184, 134, 11, 0.4); }

@media (max-width: 760px) {
  .oas-exit { width: 30px; min-width: 30px; min-height: 28px; padding: 3px 0; overflow: hidden; font-size: 0; }
  .oas-exit::after { content: "←"; font-size: 13px; }
  .inst-header__meta-wrap { gap: 0; }
  .inst-header__meta { display: none; }
  .forum-head__meta-wrap { gap: 0; }
  .forum-head__meta { display: none; }
  .hell-header__right { gap: 0; }
  .hell-user { display: none; }
  .hell-back { min-height: 30px; }
}
/* ---------- responsive ---------- */
@media (max-width: 1080px) {
  .dash-grid { grid-template-columns: 1fr 270px; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .inst-cards { grid-template-columns: 1fr 1fr; }
  .map-wrap { grid-template-columns: 1fr; }
  .hell-map { min-height: 470px; }
  .map-side { display: grid; grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .screen--login { grid-template-columns: 1fr; }
  .login-visual { min-height: 37vh; padding: 30px 30px 26px; }
  .login-quote { margin: 40px 0 0; }
  .login-quote h2 { font-size: clamp(28px, 6vw, 40px); }
  .login-quote p { display: none; }
  .login-panel { padding: 44px 26px 60px; }
  .login-foot { margin-top: 32px; }
  .screen--panyang-login { grid-template-columns: 1fr; }
  .panyang-visual { min-height: 34vh; padding: 30px; }
  .panyang-visual h2 { font-size: clamp(29px, 6vw, 40px); }
  .panyang-visual p { display: none; }
  .panyang-login-panel { padding: 42px 26px 60px; }
  .dash-grid { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .archive-hero { grid-template-columns: 1fr; }
  .inst-hero { min-height: 450px; padding: 34px; }
  .inst-section { margin-top: 36px; }
  .inst-cards { grid-template-columns: 1fr 1fr; }
  .inst-split { grid-template-columns: 1fr; }
  .inst-photo { min-height: 280px; }
  .fact-grid { grid-template-columns: 1fr 1fr; }
  .people-grid { grid-template-columns: 1fr 1fr; }
  .news-row { grid-template-columns: 82px minmax(0, 1fr); }
  .news-row .cat { grid-column: 2; justify-self: start; }
  .contact-grid { grid-template-columns: 1fr; }
  .post-row { grid-template-columns: 38px minmax(0, 1fr) 86px; }
  .post-row__stats { display: none; }
  .panyang-grid { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .wrap, .wrap--narrow, .wrap--wide { width: calc(100% - 30px); }
  .topbar__inner { width: calc(100% - 24px); height: 50px; }
  .topbar__right { display: none; }
  .opening-copy { padding: 65px 0 80px; }
  .opening-title { font-size: clamp(80px, 24vw, 132px); }
  .opening-sub { font-size: 10px; }
  .opening-tagline { margin-top: 34px; font-size: 13px; }
  .opening-actions { margin-top: 32px; }
  .opening-foot { width: calc(100% - 28px); bottom: 16px; font-size: 8px; }
  .opening-foot .foot-right { display: none; }
  .login-visual { min-height: 31vh; padding: 22px; }
  .login-sys .cross { width: 34px; height: 34px; }
  .login-quote { margin: 28px 0 0; }
  .login-quote h2 { margin-bottom: 0; font-size: clamp(25px, 7vw, 33px); }
  .login-panel { padding: 34px 20px 50px; }
  .login-card__head h1 { font-size: 23px; }
  .login-tabs { margin-bottom: 20px; }
  .login-tab { font-size: 11px; }
  .oas-head__top { width: calc(100% - 28px); min-height: 58px; gap: 8px; }
  .oas-brand { gap: 8px; }
  .oas-brand .t { font-size: 12px; letter-spacing: 0.04em; }
  .oas-brand .s { display: none; }
  .oas-user { gap: 0; flex: 0 0 auto; }
  .oas-user span { display: none; }
  .oas-nav { width: calc(100% - 28px); }
  .oas-page { width: calc(100% - 28px); padding-top: 22px; }
  .oas-title-row { align-items: flex-start; flex-direction: column; gap: 8px; }
  .stat-grid { gap: 8px; }
  .stat-card { padding: 14px; }
  .stat-card .value { font-size: 23px; }
  .archive-grid { grid-template-columns: 1fr; }
  .archive-card { min-height: 180px; }
  .archive-meta-grid { grid-template-columns: 1fr 1fr; }
  .panel__body { padding: 14px; }
  .alert-item { padding: 10px 11px; }
  .progress-row { padding: 11px 14px; }
  .progress-row .state { display: none; }
  .inst-header__top { width: calc(100% - 28px); min-height: 62px; }
  .inst-brand .name { font-size: 15px; }
  .inst-brand .en { display: none; }
  .inst-header__meta { display: none; }
  .inst-nav__inner { width: calc(100% - 20px); }
  .inst-nav button { padding: 9px 11px; font-size: 11px; }
  .inst-main { width: calc(100% - 28px); padding-top: 18px; }
  .inst-hero { min-height: 390px; padding: 25px; }
  .inst-hero h1 { font-size: clamp(27px, 8vw, 38px); }
  .inst-hero p { font-size: 11px; }
  .inst-cards { grid-template-columns: 1fr; }
  .inst-section { margin-top: 30px; }
  .inst-section__head { align-items: flex-start; flex-direction: column; gap: 6px; }
  .inst-quote { padding: 25px; }
  .fact-grid { grid-template-columns: 1fr 1fr; }
  .people-grid { grid-template-columns: 1fr; }
  .news-row { grid-template-columns: 1fr; gap: 6px; padding: 16px; }
  .news-row .date { padding-top: 0; }
  .news-row .cat { grid-column: 1; }
  .news-article__head { padding: 22px 18px 17px; }
  .news-article__body { padding: 20px 18px 5px; }
  .news-article__foot { padding: 16px 18px 22px; }
  .institute-footer { margin-top: 36px; }
  .contact-card { padding: 20px; }
  .forum-head__top { width: calc(100% - 28px); min-height: 64px; }
  .forum-brand .name { font-size: 19px; }
  .forum-brand .sub { display: none; }
  .forum-head__meta { display: none; }
  .forum-nav { width: calc(100% - 20px); }
  .forum-main { width: calc(100% - 24px); padding-top: 16px; }
  .post-row { grid-template-columns: 32px minmax(0, 1fr); gap: 11px; padding: 14px 13px; }
  .post-row__author { grid-column: 2; }
  .post-row__main p { display: none; }
  .thread__head { padding: 18px; }
  .thread__body { padding: 18px; }
  .floor { padding: 12px 16px; grid-template-columns: 42px minmax(0, 1fr); gap: 10px; }
  .hidden-reveal { margin: 6px 16px 18px; }
  .hell-nav { justify-content: flex-start; padding-left: 2px; }
  .hell-main { width: calc(100% - 28px); padding-bottom: 80px; }
  .hell-verse { width: calc(100% - 34px); padding-top: 20px; font-size: 11px; }
  .hell-arch { width: 130vw; opacity: 0.75; }
  .hell-header__inner { width: calc(100% - 28px); min-height: 54px; }
  .hell-brand .name { font-size: 15px; }
  .hell-user { display: none; }
  .scroll-grid { grid-template-columns: 1fr; }
  .scroll-card { min-height: 150px; }
  .scroll-card--final { grid-column: auto; }
  .scroll-card--final .final-row { align-items: flex-start; flex-direction: column; }
  .scroll-card--final .final-row .btn { width: 100%; }
  .hell-map { min-height: 390px; }
  .map-side { grid-template-columns: 1fr; }
  .discussion-item__head { grid-template-columns: 1fr 46px; gap: 7px; padding: 12px 13px; }
  .discussion-item__user { grid-column: 1; }
  .discussion-item__title { grid-column: 1 / -1; grid-row: 2; }
  .discussion-item__reply { grid-column: 2; grid-row: 1; }
  .discussion-item__body { padding: 0 13px 15px; }
  .vault-grid { grid-template-columns: 1fr; }
  .hell-detail { width: calc(100% - 28px); padding-top: 18px; }
  .scroll-sheet { padding: 30px 21px; }
  .scroll-sheet h1 { font-size: 30px; }
  .scroll-body { font-size: 13px; line-height: 2.1; }
  .scroll-cipher { padding: 15px; }
  .finaldoor-main { padding-top: 20px; }
  .finaldoor-title { letter-spacing: 0.16em; text-indent: 0.16em; }
  .corridor-ui { width: calc(100% - 24px); padding-bottom: 88px; }
  .corridor-dialogue { padding: 18px; min-height: 125px; }
  .corridor-dialogue .line { font-size: 17px; }
  .corridor-doors { width: 82vw; }
  .corridor-figure { width: 24px; height: 78px; }
  .corridor-light:nth-child(3) { display: none; }
  .term-head { padding: 10px 12px; }
  .term-head__left { font-size: 8px; }
  .term-head__right { font-size: 8px; }
  .term-wrap { width: calc(100% - 22px); padding-top: 13px; }
  .term-line { font-size: 12px; }
  .term-choices { padding: 12px; }
  .term-footer { padding-bottom: calc(8px + var(--safe-bottom)); }
  .term-chips { padding: 6px 0; }
  .term-chip { min-height: 34px; font-size: 8px; }
  .term-hint { font-size: 7px; }
  .ending-stage { width: calc(100% - 30px); padding: 30px 0 50px; }
  .ending-line { font-size: clamp(19px, 5.8vw, 28px); line-height: 1.85; }
  .ending-card { width: calc(100% - 30px); padding: 35px 0 45px; }
  .ending-card h1 { font-size: 44px; }
  .cine-controls { width: calc(100% - 30px); padding-bottom: calc(20px + var(--safe-bottom)); }
  .gallery-grid { grid-template-columns: 1fr; }
  .clue-dock { right: 12px; bottom: calc(12px + var(--safe-bottom)); }
  .clue-dock__tab { padding: 7px 12px; min-height: 38px; font-size: 11px; }
  .clue-panel { width: calc(100vw - 24px); bottom: 48px; max-height: 64vh; }
  .clue-panel__body { max-height: calc(64vh - 52px); }
  .audio-toggle { left: 12px; bottom: calc(12px + var(--safe-bottom)); width: 40px; height: 40px; }
  #toast { bottom: calc(68px + var(--safe-bottom)); font-size: 11px; }
  .modal-root { padding: 12px; align-items: flex-end; }
  .modal { width: 100%; max-height: 88vh; }
  .modal__head { padding: 18px 18px 0; }
  .modal__body { padding: 14px 18px 18px; font-size: 13px; }
  .modal__actions { padding: 0 18px 18px; }
  .modal__actions .btn { flex-basis: 100%; }

  /* keep the fixed audio / clue controls from covering page actions */
  .screen--login,
  .screen--oas,
  .screen--institute,
  .screen--forum,
  .screen--panyang-login,
  .screen--panyang,
  .screen--patient,
  .screen--engineer,
  .screen--hell,
  .screen--hell-login,
  .screen--finaldoor {
    padding-bottom: 58px;
  }

  .btn--sm {
    min-height: 48px;
    padding-top: 10px;
    padding-bottom: 10px;
  }

  .term-footer {
    padding-bottom: calc(64px + var(--safe-bottom));
  }

  .term-input-row .btn {
    min-width: 64px;
    padding-left: 10px;
    padding-right: 10px;
    font-size: 9px;
  }
}

@media (max-width: 400px) {
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .archive-meta-grid { grid-template-columns: 1fr 1fr; }
  .login-visual { min-height: 27vh; }
  .login-quote h2 { font-size: 24px; }
  .login-card__head h1 { font-size: 21px; }
  .opening-title { font-size: 82px; }
  .hell-login-title { font-size: 38px; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  #grain { display: none; }
  .corridor-light { animation: none; opacity: 0.88; }
  .heart-orb { animation: none; }
}

/* print nothing useful, but keep it readable */
@media print {
  #grain, .audio-toggle, .clue-dock, .topbar, .ending-controls { display: none !important; }
  body { background: #fff; color: #000; }
}