/* ============================================================
   秦宮 · 界線外殼 · 公共樣式
   所有節點名稱依律隱去，以下樣式不指涉任何實名。
   ============================================================ */

:root {
  --ink: #06060b;
  --ink-2: #0b0b14;
  --ink-3: #101019;
  --gold: #c8a86e;
  --gold-hi: #efd9a7;
  --gold-dim: rgba(200, 168, 110, 0.55);
  --jade: #8fd0b8;
  --crimson: #a34a3f;
  --line: rgba(200, 168, 110, 0.22);
  --line-soft: rgba(200, 168, 110, 0.12);
  --txt: #e8e2d3;
  --dim: #b6af9c;
  --faint: #948d79;
  --serif: "Noto Serif SC", "Songti SC", "STSong", serif;
  --kai: "LXGW WenKai TC", "Kaiti TC", "STKaiti", "Kaiti SC", cursive;
  --mono: "Sarasa Mono SC", "Menlo", monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

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

body {
  font-family: var(--serif);
  color: var(--txt);
  -webkit-tap-highlight-color: transparent;
  min-height: 100vh;
  min-height: 100svh;
  background:
    radial-gradient(ellipse 80% 55% at 50% -10%, var(--node-glow, rgba(200, 168, 110, 0.06)), transparent 60%),
    radial-gradient(ellipse 60% 45% at 85% 110%, rgba(143, 208, 184, 0.035), transparent 60%),
    radial-gradient(ellipse 55% 40% at 8% 90%, rgba(163, 74, 63, 0.03), transparent 60%),
    linear-gradient(180deg, #08080e 0%, var(--ink-mid, var(--ink)) 45%, #050508 100%);
  background-attachment: fixed;
  overflow-x: hidden;
  letter-spacing: 0.04em;
}

::selection { background: rgba(200, 168, 110, 0.28); color: var(--gold-hi); }

a { color: inherit; text-decoration: none; }

/* ---------- 背景畫布與暈影 ---------- */

#bg {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

.vignette {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(ellipse 120% 90% at 50% 50%, transparent 55%, rgba(3, 3, 6, 0.75) 100%);
}

/* ---------- 流動霧霭（三團緩漂光暈，墊於陣紋之下） ---------- */

body::before,
body::after {
  content: "";
  position: fixed;
  z-index: 0;
  pointer-events: none;
  border-radius: 50%;
  will-change: transform;
}

body::before {
  width: 68vmax;
  height: 52vmax;
  left: -16vmax;
  top: -20vmax;
  background: radial-gradient(ellipse at center, rgba(200, 168, 110, 0.06), transparent 62%);
  animation: mistDriftA 82s ease-in-out infinite alternate;
}

body::after {
  width: 58vmax;
  height: 46vmax;
  right: -16vmax;
  bottom: -14vmax;
  background: radial-gradient(ellipse at center, rgba(143, 208, 184, 0.045), transparent 60%);
  animation: mistDriftB 96s ease-in-out infinite alternate;
}

.vignette::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  will-change: transform;
  background:
    radial-gradient(ellipse 55% 42% at 16% 84%, rgba(163, 74, 63, 0.05), transparent 65%),
    radial-gradient(ellipse 46% 38% at 86% 10%, rgba(200, 168, 110, 0.04), transparent 62%);
  animation: mistDriftC 74s ease-in-out infinite alternate;
}

@keyframes mistDriftA {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to   { transform: translate3d(9vmax, 5vmax, 0) scale(1.16); }
}

@keyframes mistDriftB {
  from { transform: translate3d(0, 0, 0) scale(1.1); }
  to   { transform: translate3d(-8vmax, -6vmax, 0) scale(0.94); }
}

@keyframes mistDriftC {
  from { transform: translate3d(0, 0, 0); }
  to   { transform: translate3d(3vmax, -4vmax, 0); }
}

/* ---------- 噪點顆粒質感 ---------- */

.vignette::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.05;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
}

@media (prefers-reduced-motion: reduce) {
  body::before,
  body::after,
  .vignette::before { animation: none; }
}

/* ---------- 各殿別色 · 故國遺色 ----------
   取彼國舊色入殿：縑帛、流沙、白高、青玉、赭門、陶褐。
   每殿覆寫主調金，霧霭亦隨殿易色。 */

/* 甲 · 縑帛灰黃（書寫記錄之殿） */
body[data-node="jia"] {
  --gold: #c9b99a; --gold-hi: #ecdfc4;
  --gold-dim: rgba(201, 185, 154, 0.55);
  --line: rgba(201, 185, 154, 0.22); --line-soft: rgba(201, 185, 154, 0.12);
  --node-glow: rgba(201, 185, 154, 0.055); --ink-mid: #0a0a09;
}
body[data-node="jia"]::before {
  background: radial-gradient(ellipse at center, rgba(201, 185, 154, 0.06), transparent 62%);
}

/* 乙 · 流沙金（觀望之台） */
body[data-node="yi"] {
  --gold: #d3b072; --gold-hi: #f0d7a0;
  --gold-dim: rgba(211, 176, 114, 0.55);
  --line: rgba(211, 176, 114, 0.22); --line-soft: rgba(211, 176, 114, 0.12);
  --node-glow: rgba(211, 176, 114, 0.055); --ink-mid: #0b0a08;
}
body[data-node="yi"]::before {
  background: radial-gradient(ellipse at center, rgba(211, 176, 114, 0.06), transparent 62%);
}

/* 丙 · 白高之色（驗明之殿） */
body[data-node="ji"] {
  --gold: #c6cfca; --gold-hi: #e9efec;
  --gold-dim: rgba(198, 207, 202, 0.55);
  --line: rgba(198, 207, 202, 0.22); --line-soft: rgba(198, 207, 202, 0.12);
  --node-glow: rgba(198, 207, 202, 0.045); --ink-mid: #0a0a0b;
}
body[data-node="ji"]::before {
  background: radial-gradient(ellipse at center, rgba(198, 207, 202, 0.05), transparent 62%);
}

/* 丁 · 青玉（憑證之所） */
body[data-node="bing"] {
  --gold: #8fd0b8; --gold-hi: #c9ecdf;
  --gold-dim: rgba(143, 208, 184, 0.55);
  --line: rgba(143, 208, 184, 0.22); --line-soft: rgba(143, 208, 184, 0.12);
  --node-glow: rgba(143, 208, 184, 0.045); --ink-mid: #070a09;
}
body[data-node="bing"]::before {
  background: radial-gradient(ellipse at center, rgba(143, 208, 184, 0.05), transparent 62%);
}

/* 戊 · 赭門之赤（兩界之門） */
body[data-node="ding"] {
  --gold: #a87a5f; --gold-hi: #d4b395;
  --gold-dim: rgba(168, 122, 95, 0.55);
  --line: rgba(168, 122, 95, 0.22); --line-soft: rgba(168, 122, 95, 0.12);
  --node-glow: rgba(168, 122, 95, 0.05); --ink-mid: #0a0807;
}
body[data-node="ding"]::before {
  background: radial-gradient(ellipse at center, rgba(168, 122, 95, 0.05), transparent 62%);
}

/* 縫中之頁 · 獨留昔日之赤（詭於諸殿） */
body[data-void] {
  --gold: #c2685c; --gold-hi: #e6a294;
  --gold-dim: rgba(194, 104, 92, 0.55);
  --line: rgba(194, 104, 92, 0.22); --line-soft: rgba(194, 104, 92, 0.12);
  --node-glow: rgba(194, 104, 92, 0.06); --ink-mid: #0b0808;
}
body[data-void]::before {
  background: radial-gradient(ellipse at center, rgba(194, 104, 92, 0.05), transparent 62%);
}

/* 己 · 陶褐（封存之庫） */
body[data-node="wu"] {
  --gold: #a07d5a; --gold-hi: #cfae86;
  --gold-dim: rgba(160, 125, 90, 0.55);
  --line: rgba(160, 125, 90, 0.22); --line-soft: rgba(160, 125, 90, 0.12);
  --node-glow: rgba(160, 125, 90, 0.055); --ink-mid: #0a0907;
}

/* ---------- 錯誤頁 · 赤色禁斷 ----------
   不通之節點仍可入，唯見赤色；一切強調色隨之轉赤。 */

body[data-node="err"] {
  --gold: #c2554a; --gold-hi: #ea8d7f;
  --gold-dim: rgba(194, 85, 74, 0.55);
  --dim: #a08d86; --faint: #6e5852; /* 赤頁獨守舊暗 · 不隨諸殿提亮 */
  --line: rgba(194, 85, 74, 0.25); --line-soft: rgba(194, 85, 74, 0.13);
  --node-glow: rgba(194, 85, 74, 0.07); --ink-mid: #0c0708;
}

body[data-node="err"]::before {
  background: radial-gradient(ellipse at center, rgba(194, 85, 74, 0.06), transparent 62%);
}

.err-stage {
  position: relative;
  z-index: 2;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4rem 1.2rem;
}

.err-code {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(4.5rem, 17vw, 10rem);
  letter-spacing: 0.22em;
  text-indent: 0.22em;
  color: var(--gold-hi);
  text-shadow:
    0 0 20px rgba(234, 141, 127, 0.4),
    0 0 70px rgba(194, 85, 74, 0.32);
  animation: errFlicker 4.6s linear infinite;
}

@keyframes errFlicker {
  0%, 90%, 100% { opacity: 1; }
  91% { opacity: 0.45; }
  92% { opacity: 0.9; }
  93% { opacity: 0.55; }
  94% { opacity: 1; }
}

.err-sep {
  margin: 2.2rem 0;
  font-size: 0.8rem;
  letter-spacing: 1.1em;
  text-indent: 1.1em;
  color: var(--gold-dim);
}

.err-msg {
  font-size: 1rem;
  line-height: 2.3;
  color: var(--dim);
  letter-spacing: 0.22em;
  max-width: 36em;
}

.err-msg strong {
  color: var(--gold-hi);
  font-weight: 500;
}

.err-log {
  margin: 2.6rem auto 0;
  width: min(560px, 92vw);
  border: 1px solid var(--line);
  background: rgba(194, 85, 74, 0.04);
  padding: 1rem 1.4rem;
  text-align: left;
  font-size: 0.74rem;
  line-height: 2.1;
  color: var(--dim);
  letter-spacing: 0.1em;
}

.err-log .t { color: var(--faint); margin-right: 0.6em; }
.err-log .bad { color: var(--gold-hi); }

/* ---------- 標準日誌條目（守護程序 · 時空點記錄） ---------- */

.lg-head {
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.lg-line {
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--dim);
}

.lg-close {
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--faint);
}

.lg-cut {
  font-size: 0.72rem;
  letter-spacing: 0.3em;
  color: var(--faint);
  opacity: 0.75;
}

/* 判定之值 · 各從其色 */
.st-ok { color: #9fc6ad; }
.st-q { color: var(--gold); }
.st-rec { color: var(--dim); }
.st-x { color: #c2685c; }

.node-code .st-ok { color: var(--jade); }
.node-code .st-q { color: var(--gold-hi); }
.node-code .st-rec { color: var(--dim); }
.node-code .st-x { color: #c2685c; }
.node-code .st-cal { color: var(--gold); animation: breathe 3.4s ease-in-out infinite; }

/* ---------- 腳印深度標記 ---------- */

.depth-mark {
  position: fixed;
  right: 1.6rem;
  bottom: 1.3rem;
  z-index: 30;
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  color: var(--faint);
  opacity: 0.85;
  pointer-events: none;
  user-select: none;
}

/* 赤頁殘字：不成言，微赤，緩慢明滅 */
.depth-mark.dread {
  font-family: var(--kai);
  font-size: 0.82rem;
  letter-spacing: 0.22em;
  color: var(--gold-dim);
  animation: errFlicker 5.2s linear infinite;
}

/* ---------- 縫中之頁（唯留一行亂碼） ---------- */

.void-stage {
  position: relative;
  z-index: 2;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.2rem;
}

.void-line {
  font-family: var(--kai);
  font-size: clamp(1.3rem, 4.2vw, 2.1rem);
  letter-spacing: 0.5em;
  text-indent: 0.5em;
  color: var(--gold-dim);
  text-shadow: 0 0 26px rgba(194, 104, 92, 0.22);
  user-select: none;
  animation: breathe 6s ease-in-out infinite;
}

/* ---------- 門縫入口（兩界之門頁內） ---------- */

.seam-link {
  display: block;
  margin: 2.2rem auto 0;
  text-align: center;
  font-size: 0.7rem;
  letter-spacing: 0.5em;
  text-indent: 0.5em;
  color: var(--faint);
  opacity: 0.6;
  transition: color 0.6s, opacity 0.6s, text-shadow 0.6s;
}

.seam-link:hover, .seam-link:focus-visible {
  color: var(--gold-hi);
  opacity: 1;
  text-shadow: 0 0 18px rgba(168, 122, 95, 0.45);
}

.err-foot {
  margin-top: 2.8rem;
  font-size: 0.68rem;
  color: var(--faint);
  letter-spacing: 0.4em;
  text-indent: 0.4em;
  line-height: 2.4;
}

/* 滯留者久 · 殿角自浮的半行蔽文 */
.err-leak {
  position: fixed;
  right: 1.8rem;
  bottom: 1.5rem;
  z-index: 30;
  font-size: 0.62rem;
  letter-spacing: 0.42em;
  color: #c2685c;
  opacity: 0;
  transition: opacity 2.4s ease;
  pointer-events: none;
  user-select: none;
}

.err-leak.show { opacity: 0.28; }
body[data-node="wu"]::before {
  background: radial-gradient(ellipse at center, rgba(160, 125, 90, 0.06), transparent 62%);
}

/* ---------- 啟動幕 ---------- */

.boot {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: #040407;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 2.2rem;
  transition: opacity 1.1s ease;
  cursor: pointer;
}

.boot.done { opacity: 0; pointer-events: none; }

.boot pre {
  font-family: var(--serif);
  font-size: 0.95rem;
  line-height: 2.1;
  color: var(--gold-dim);
  letter-spacing: 0.12em;
  min-height: 11em;
  white-space: pre-wrap;
}

.boot pre .ok { color: var(--jade); }

.boot-skip {
  font-size: 0.72rem;
  color: var(--faint);
  letter-spacing: 0.35em;
  animation: breathe 2.4s ease-in-out infinite;
}

/* ---------- 頂欄 ---------- */

.site-head {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 1.6rem;
  padding: 0.9rem clamp(1rem, 4vw, 3rem);
  background: rgba(6, 6, 11, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-soft);
}

.sigil {
  font-family: var(--kai);
  font-size: 1.5rem;
  color: var(--gold);
  line-height: 1;
  text-shadow: 0 0 18px rgba(200, 168, 110, 0.45);
  flex: none;
}

.sigil span { color: var(--gold-hi); }

.site-head nav {
  display: flex;
  gap: 0.2rem;
  overflow-x: auto;
  scrollbar-width: none;
  flex: 1;
}

.site-head nav::-webkit-scrollbar { display: none; }

.site-head nav a {
  flex: none;
  font-size: 0.82rem;
  color: var(--dim);
  padding: 0.42rem 0.75rem;
  border-radius: 2px;
  border: 1px solid transparent;
  transition: color 0.3s, border-color 0.3s, background 0.3s;
  letter-spacing: 0.1em;
  white-space: nowrap;
}

.site-head nav a:hover { color: var(--gold-hi); border-color: var(--line); }

.site-head nav a.active {
  color: var(--gold);
  border-color: var(--line);
  background: rgba(200, 168, 110, 0.06);
}

.status-pill {
  flex: none;
  font-size: 0.72rem;
  letter-spacing: 0.25em;
  color: var(--jade);
  border: 1px solid rgba(143, 208, 184, 0.3);
  padding: 0.35rem 0.8rem;
  border-radius: 99px;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.status-pill::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--jade);
  box-shadow: 0 0 8px var(--jade);
  animation: breathe 2.2s ease-in-out infinite;
}

/* ---------- 版心 ---------- */

main {
  position: relative;
  z-index: 2;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 2.5rem) 4rem;
}

/* ---------- 主界面 · 標題 ---------- */

.hero {
  position: relative;
  text-align: center;
  padding: clamp(4rem, 10vh, 7rem) 0 3rem;
}

.hero-echo {
  position: absolute;
  left: 50%;
  top: 52%;
  transform: translate(-54%, -56%);
  font-family: var(--kai);
  font-size: clamp(6rem, 20vw, 13rem);
  color: rgba(200, 168, 110, 0.22);
  filter: blur(16px);
  letter-spacing: 0.1em;
  user-select: none;
  pointer-events: none;
  animation: echoDrift 9s ease-in-out infinite;
}

.hero-title {
  position: relative;
  font-family: var(--kai);
  font-weight: 400;
  font-size: clamp(5rem, 17vw, 11rem);
  line-height: 1.05;
  color: var(--gold-hi);
  letter-spacing: 0.14em;
  text-shadow:
    0 0 22px rgba(239, 217, 167, 0.35),
    0 0 70px rgba(200, 168, 110, 0.30),
    0 0 160px rgba(200, 168, 110, 0.18);
  animation: titleGlow 5s ease-in-out infinite;
}

.hero-mars {
  margin-top: 1.4rem;
  font-size: clamp(0.85rem, 2vw, 1.05rem);
  color: var(--gold-dim);
  letter-spacing: 0.5em;
  text-indent: 0.5em;
}

.hero-sub {
  margin-top: 0.9rem;
  font-size: 0.8rem;
  color: var(--dim);
  letter-spacing: 0.28em;
  text-indent: 0.28em;
}

.hero-line {
  margin: 2.4rem auto 0;
  width: min(420px, 70%);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-dim), transparent);
  position: relative;
}

.hero-line::after {
  content: "◈";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  color: var(--gold);
  font-size: 0.7rem;
  background: var(--ink);
  padding: 0 0.8rem;
}

/* ---------- 區塊標題 ---------- */

.sec-title {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.2rem;
  font-weight: 400;
  font-size: 1.05rem;
  letter-spacing: 0.5em;
  text-indent: 0.5em;
  color: var(--gold);
  margin: 3.6rem 0 1.8rem;
}

.sec-title::before, .sec-title::after {
  content: "";
  height: 1px;
  width: min(120px, 18vw);
  background: linear-gradient(90deg, transparent, var(--line));
}

.sec-title::after { transform: scaleX(-1); }

.sec-note {
  text-align: center;
  font-size: 0.75rem;
  color: var(--faint);
  letter-spacing: 0.3em;
  margin: -0.8rem 0 2rem;
}

/* ---------- 節點卡片 ---------- */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
}

.node-card {
  position: relative;
  display: block;
  padding: 1.6rem 1.4rem 1.3rem;
  border: 1px solid var(--line-soft);
  background: linear-gradient(160deg, rgba(20, 19, 28, 0.65), rgba(9, 9, 14, 0.85));
  backdrop-filter: blur(6px);
  overflow: hidden;
  transition: transform 0.4s ease, border-color 0.4s, box-shadow 0.4s;
}

.node-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: -70%;
  width: 45%;
  height: 100%;
  background: linear-gradient(100deg, transparent, rgba(239, 217, 167, 0.07), transparent);
  transform: skewX(-18deg);
  transition: left 0.8s ease;
}

.node-card:hover { transform: translateY(-4px); border-color: var(--line); box-shadow: 0 14px 40px rgba(0, 0, 0, 0.45), 0 0 30px rgba(200, 168, 110, 0.07) inset; }
.node-card:hover::before { left: 130%; }

.node-card.dead { cursor: not-allowed; opacity: 0.5; }
.node-card.dead:hover { transform: none; border-color: var(--line-soft); box-shadow: none; }
.node-card.dead::before { display: none; }

.node-glyph {
  font-family: var(--kai);
  font-size: 1.7rem;
  color: var(--gold);
  letter-spacing: 0.12em;
  text-shadow: 0 0 14px rgba(200, 168, 110, 0.3);
}

.node-card.dead .node-glyph { color: var(--faint); text-shadow: none; }

.node-role {
  margin-top: 0.5rem;
  font-size: 0.82rem;
  color: var(--dim);
  letter-spacing: 0.2em;
}

.node-desc {
  margin-top: 0.8rem;
  font-size: 0.78rem;
  line-height: 1.9;
  color: var(--faint);
  letter-spacing: 0.06em;
  min-height: 3em;
}

.node-foot {
  margin-top: 1.1rem;
  padding-top: 0.9rem;
  border-top: 1px dashed var(--line-soft);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.7rem;
  color: var(--faint);
  letter-spacing: 0.18em;
}

/* 狀態標籤 */
.tag {
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  padding: 0.22rem 0.6rem;
  border-radius: 99px;
  border: 1px solid;
}

.tag.on      { color: var(--jade); border-color: rgba(143, 208, 184, 0.35); background: rgba(143, 208, 184, 0.06); }
.tag.standby { color: var(--gold); border-color: rgba(200, 168, 110, 0.35); background: rgba(200, 168, 110, 0.06); }
.tag.calib   { color: #b8a3d8; border-color: rgba(184, 163, 216, 0.35); background: rgba(184, 163, 216, 0.06); }
.tag.read    { color: #9db8d8; border-color: rgba(157, 184, 216, 0.35); background: rgba(157, 184, 216, 0.06); }
.tag.off     { color: var(--faint); border-color: rgba(90, 86, 72, 0.5); background: rgba(90, 86, 72, 0.1); }

/* ---------- 日誌面板 ---------- */

.log-panel {
  border: 1px solid var(--line-soft);
  background: rgba(8, 8, 13, 0.75);
  backdrop-filter: blur(8px);
}

.log-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.8rem 1.2rem;
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  color: var(--gold-dim);
  border-bottom: 1px solid var(--line-soft);
}

.log-head em {
  font-style: normal;
  color: var(--faint);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
}

.log-body {
  list-style: none;
  padding: 1rem 1.2rem;
  font-size: 0.8rem;
  line-height: 2.05;
  color: var(--dim);
  letter-spacing: 0.05em;
  min-height: 12em;
}

.log-body li { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; animation: logIn 0.6s ease; }
.log-body li .t { color: var(--faint); margin-right: 0.6em; }
.log-body li .n { color: var(--gold-dim); }
.log-body li.warn { color: var(--crimson); }
.log-body li.warn .n { color: var(--crimson); }

/* 標準記錄卷：多行成篇，不截不斷 */
.log-body.log-std li {
  white-space: normal;
  overflow: visible;
  padding: 0.9rem 0.2rem;
  line-height: 2;
}
.log-body.log-std li + li { border-top: 1px dashed var(--line-soft); }

/* ---------- 子頁 · 節點頭 ---------- */

.node-hero { padding: 4.5rem 0 1rem; text-align: center; }

.crumb {
  display: inline-block;
  font-size: 0.78rem;
  color: var(--dim);
  letter-spacing: 0.2em;
  border: 1px solid var(--line-soft);
  padding: 0.4rem 1.1rem;
  border-radius: 99px;
  transition: color 0.3s, border-color 0.3s;
  margin-bottom: 2.2rem;
}

.crumb:hover { color: var(--gold-hi); border-color: var(--line); }

.node-glyph-xl {
  font-family: var(--kai);
  font-size: clamp(2.6rem, 8vw, 4.6rem);
  color: var(--gold-hi);
  letter-spacing: 0.18em;
  text-shadow: 0 0 24px rgba(239, 217, 167, 0.3), 0 0 80px rgba(200, 168, 110, 0.2);
}

.node-code {
  position: fixed;
  top: 1.5rem;
  right: 1.6rem;
  z-index: 30;
  font-size: 0.66rem;
  letter-spacing: 0.3em;
  color: var(--gold-dim);
  user-select: none;
}

.node-desc {
  margin: 1.4rem auto 0;
  max-width: 34em;
  font-size: 0.88rem;
  line-height: 2.1;
  color: var(--dim);
  letter-spacing: 0.08em;
}

/* ---------- 面板通用 ---------- */

.panel {
  border: 1px solid var(--line-soft);
  background: rgba(10, 10, 16, 0.55);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  margin-top: 2.4rem;
}

.panel-head {
  padding: 0.85rem 1.3rem;
  font-size: 0.78rem;
  letter-spacing: 0.3em;
  color: var(--gold-dim);
  border-bottom: 1px solid var(--line-soft);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.panel-body { padding: 1.4rem 1.3rem; }

/* ---------- 按鈕 / 表單 ---------- */

.btn {
  display: inline-block;
  font-family: var(--serif);
  font-size: 0.8rem;
  letter-spacing: 0.3em;
  text-indent: 0.3em;
  color: var(--gold);
  background: transparent;
  border: 1px solid var(--line);
  padding: 0.6rem 1.6rem;
  cursor: pointer;
  transition: all 0.35s;
  position: relative;
  overflow: hidden;
}

.btn:hover { color: var(--ink); background: var(--gold); box-shadow: 0 0 24px rgba(200, 168, 110, 0.35); }
.btn:disabled { opacity: 0.4; cursor: wait; }
.btn.ghost { border-color: var(--line-soft); color: var(--dim); }
.btn.ghost:hover { background: rgba(200, 168, 110, 0.1); color: var(--gold-hi); box-shadow: none; }

.field {
  width: 100%;
  font-family: var(--serif);
  font-size: 0.9rem;
  letter-spacing: 0.15em;
  color: var(--gold-hi);
  background: rgba(6, 6, 10, 0.8);
  border: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line);
  padding: 0.85rem 1rem;
  outline: none;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.field::placeholder { color: var(--faint); letter-spacing: 0.2em; }
.field:focus { border-color: var(--gold-dim); box-shadow: 0 0 18px rgba(200, 168, 110, 0.12); }

/* 篩選片 */
.chips { display: flex; gap: 0.5rem; flex-wrap: wrap; }

.chip {
  font-family: var(--serif);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  color: var(--dim);
  background: transparent;
  border: 1px solid var(--line-soft);
  padding: 0.32rem 0.9rem;
  border-radius: 99px;
  cursor: pointer;
  transition: all 0.3s;
}

.chip:hover { color: var(--gold-hi); border-color: var(--line); }
.chip.active { color: var(--ink); background: var(--gold); border-color: var(--gold); }

/* 進度 */
.bar {
  height: 3px;
  background: rgba(200, 168, 110, 0.1);
  margin: 1.2rem 0;
  overflow: hidden;
}

.bar .fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--gold-dim), var(--gold-hi));
  box-shadow: 0 0 12px rgba(200, 168, 110, 0.5);
  transition: width 1.5s cubic-bezier(0.2, 0.7, 0.3, 1);
}

/* 裁決 / 結果 */
.verdict {
  margin-top: 1.4rem;
  padding: 1.1rem 1.3rem;
  border: 1px solid var(--line);
  font-size: 0.9rem;
  letter-spacing: 0.15em;
  line-height: 1.9;
  color: var(--gold-hi);
  background: rgba(200, 168, 110, 0.05);
  animation: stampIn 0.5s cubic-bezier(0.2, 1.4, 0.4, 1);
}

.verdict.bad { border-color: rgba(163, 74, 63, 0.5); color: #d89a90; background: rgba(163, 74, 63, 0.06); }
.verdict.ok { border-color: rgba(143, 208, 184, 0.4); color: var(--jade); background: rgba(143, 208, 184, 0.05); }

.verdict .seal {
  display: inline-block;
  margin-left: 0.6em;
  font-size: 0.68rem;
  color: var(--crimson);
  border: 1px solid var(--crimson);
  padding: 0.1rem 0.5rem;
  transform: rotate(-4deg);
  letter-spacing: 0.3em;
}

/* ---------- 觀息波形 ---------- */

.wave-wrap { position: relative; height: 220px; border: 1px solid var(--line-soft); background: rgba(5, 5, 9, 0.6); overflow: hidden; }
.wave-wrap canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.wave-wrap.flash::after {
  content: "";
  position: absolute; inset: 0;
  background: rgba(239, 217, 167, 0.12);
  animation: flashOut 0.8s ease forwards;
}

.stat-row { display: flex; flex-wrap: wrap; gap: 2.2rem; margin-top: 1.3rem; }

.stat-row .stat b {
  display: block;
  font-weight: 400;
  font-size: 0.68rem;
  letter-spacing: 0.3em;
  color: var(--faint);
  margin-bottom: 0.4rem;
}

.stat-row .stat i {
  font-style: normal;
  font-size: 1.15rem;
  color: var(--gold-hi);
  letter-spacing: 0.08em;
}

/* ---------- 通道 · 兩界 ---------- */

.realms {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 1rem 0;
}

.realm {
  flex: none;
  width: clamp(90px, 20vw, 150px);
  aspect-ratio: 1;
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  background: radial-gradient(circle at 50% 40%, rgba(200, 168, 110, 0.08), transparent 70%);
}

.realm .glyph { font-family: var(--kai); font-size: 1.9rem; color: var(--gold); text-shadow: 0 0 16px rgba(200, 168, 110, 0.4); }
.realm .lbl { font-size: 0.7rem; letter-spacing: 0.4em; color: var(--dim); }
.realm.far { border-style: dashed; opacity: 0.8; }
.realm.far .glyph { color: var(--jade); text-shadow: 0 0 16px rgba(143, 208, 184, 0.4); }

.beam {
  flex: 1;
  height: 2px;
  position: relative;
  background: linear-gradient(90deg, var(--gold-dim), rgba(143, 208, 184, 0.4));
}

.beam::before, .beam::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 5px; height: 5px;
  border-radius: 50%;
  transform: translateY(-50%);
  background: var(--gold-hi);
  box-shadow: 0 0 10px var(--gold-hi);
}
.beam::before { left: 0; }
.beam::after { right: 0; background: var(--jade); box-shadow: 0 0 10px var(--jade); }

.beam .pulse {
  position: absolute;
  top: 50%;
  left: 0;
  width: 26px; height: 2px;
  transform: translateY(-50%);
  background: linear-gradient(90deg, transparent, var(--gold-hi), transparent);
  filter: blur(0.5px);
  opacity: 0;
}

.beam.aligning .pulse { animation: beamRun 1.2s ease-in-out 2; opacity: 1; }

/* ---------- 封存卷宗 ---------- */

details.archive {
  border: 1px solid var(--line-soft);
  margin-bottom: 0.8rem;
  background: rgba(8, 8, 13, 0.6);
  transition: border-color 0.3s;
}

details.archive:hover, details.archive[open] { border-color: var(--line); }

details.archive summary {
  list-style: none;
  cursor: pointer;
  padding: 1rem 1.2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.88rem;
  letter-spacing: 0.12em;
  color: var(--txt);
}

details.archive summary::-webkit-details-marker { display: none; }

details.archive summary::before {
  content: "卷";
  flex: none;
  font-family: var(--kai);
  color: var(--gold);
  border: 1px solid var(--line);
  width: 2rem; height: 2rem;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9rem;
}

details.archive summary .lock {
  margin-left: auto;
  font-size: 0.66rem;
  letter-spacing: 0.25em;
  color: var(--faint);
}

details.archive .excerpt {
  padding: 0.2rem 1.2rem 1.2rem 4.2rem;
  font-size: 0.8rem;
  line-height: 2.1;
  color: var(--dim);
  letter-spacing: 0.06em;
  border-top: 1px dashed var(--line-soft);
  padding-top: 1rem;
  animation: logIn 0.5s ease;
}

/* ---------- 陣紋驗明 ---------- */

.sigil-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(70px, 110px));
  justify-content: center;
  gap: 0.9rem;
  padding: 1rem 0;
}

.sigil-btn {
  aspect-ratio: 1;
  border: 1px solid var(--line-soft);
  background: rgba(8, 8, 13, 0.7);
  color: var(--dim);
  font-size: 1.8rem;
  cursor: pointer;
  transition: all 0.3s;
  font-family: var(--serif);
}

.sigil-btn:hover { border-color: var(--line); color: var(--gold-hi); transform: translateY(-2px); }

.sigil-btn.sel {
  border-color: var(--jade);
  color: var(--jade);
  background: rgba(143, 208, 184, 0.07);
  box-shadow: 0 0 18px rgba(143, 208, 184, 0.15);
}

.hint { font-size: 0.72rem; color: var(--faint); letter-spacing: 0.25em; text-align: center; margin-top: 0.8rem; }

/* ---------- 頁腳 ---------- */

footer {
  position: relative;
  z-index: 2;
  border-top: 1px solid var(--line-soft);
  padding: 2rem clamp(1rem, 4vw, 3rem) 2.6rem;
  text-align: center;
  font-size: 0.7rem;
  color: var(--faint);
  letter-spacing: 0.3em;
  line-height: 2.4;
}

footer .glyphs { color: var(--gold-dim); font-family: var(--kai); font-size: 0.9rem; letter-spacing: 0.5em; }

/* ---------- 動畫 ---------- */

@keyframes breathe { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }

@keyframes titleGlow {
  0%, 100% { text-shadow: 0 0 22px rgba(239, 217, 167, 0.35), 0 0 70px rgba(200, 168, 110, 0.30), 0 0 160px rgba(200, 168, 110, 0.18); }
  50% { text-shadow: 0 0 30px rgba(239, 217, 167, 0.5), 0 0 100px rgba(200, 168, 110, 0.4), 0 0 200px rgba(200, 168, 110, 0.25); }
}

@keyframes echoDrift {
  0%, 100% { transform: translate(-54%, -56%) scale(1); opacity: 0.5; }
  50% { transform: translate(-52%, -58%) scale(1.02); opacity: 0.9; }
}

@keyframes logIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

@keyframes stampIn { from { opacity: 0; transform: scale(1.06); } to { opacity: 1; transform: scale(1); } }

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

@keyframes beamRun { from { left: 0; } to { left: calc(100% - 26px); } }

.fade-up { animation: logIn 0.8s ease both; }

/* ---------- 響應式 · 觸屏設備 ----------
   小屏只調密度與安全區 · 桌面不變 */

@media (max-width: 720px) {
  body { background-attachment: scroll; } /* fixed 附著在手機上會卡頓 */

  /* 固定件：向內收緊 · 避開劉海與手勢條 */
  .node-code {
    top: calc(1.1rem + env(safe-area-inset-top));
    right: calc(1rem + env(safe-area-inset-right));
    font-size: 0.6rem;
    letter-spacing: 0.22em;
  }
  .depth-mark {
    right: calc(1rem + env(safe-area-inset-right));
    bottom: calc(1rem + env(safe-area-inset-bottom));
  }
  .err-leak {
    right: calc(1rem + env(safe-area-inset-right));
    bottom: calc(0.9rem + env(safe-area-inset-bottom));
  }

  /* 版心與各殿：向中心聚攏 */
  .node-hero { padding: 3.4rem 0 0.6rem; }
  .crumb { margin-bottom: 1.6rem; }
  .node-desc { font-size: 0.82rem; line-height: 2; }
  .panel { margin-top: 1.8rem; }
  .panel-body { padding: 1.1rem 1rem; }

  .err-stage { padding: 3rem 1.2rem; }
  .err-msg { font-size: 0.82rem; }

  .void-stage { padding: 2rem 1rem; }
  .void-line { letter-spacing: 0.3em; text-indent: 0.3em; }

  .zi-stage { padding: 3rem 1.2rem 2.4rem; gap: 1rem; }
  .zi-title { letter-spacing: 0.3em; }
  .zi-form { flex-wrap: wrap; justify-content: center; gap: 1rem; }

  .sealed-grid { grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 0.7rem; }

  .log-body.log-std li { padding: 0.8rem 0.1rem; line-height: 1.9; }
}

@media (max-width: 420px) {
  .node-glyph-xl { letter-spacing: 0.1em; }
  .panel-body { padding: 1rem 0.8rem; }
  .zi-input { width: 78vw; }
  .err-foot { letter-spacing: 0.2em; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

/* ---------- 歸路符 · 隱式返回 ---------- */

.wayback {
  position: fixed;
  left: 1.5rem;
  bottom: 1.8rem;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  opacity: 0.35;
  transition: opacity 0.5s;
}

.wayback:hover { opacity: 1; }

.wayback .wb-mark {
  width: 36px;
  height: 36px;
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  transform: rotate(45deg);
  transition: border-color 0.5s, box-shadow 0.5s;
  background: rgba(8, 8, 13, 0.7);
}

.wayback .wb-mark span {
  transform: rotate(-45deg);
  font-family: var(--kai);
  color: var(--gold);
  font-size: 0.95rem;
}

.wayback:hover .wb-mark {
  border-color: var(--gold);
  box-shadow: 0 0 20px rgba(200, 168, 110, 0.35);
}

.wayback .wb-hint {
  writing-mode: vertical-rl;
  font-size: 0.62rem;
  letter-spacing: 0.45em;
  color: var(--dim);
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity 0.5s, transform 0.5s;
}

.wayback:hover .wb-hint { opacity: 1; transform: none; }

/* 觸屏無懸停：歸路符移入真角落 · 只留一枚菱格 · 桌面不變
   須置於基定義之後，方不被覆蓋 */
@media (max-width: 720px) {
  .wayback {
    left: calc(0.8rem + env(safe-area-inset-left));
    bottom: calc(0.9rem + env(safe-area-inset-bottom));
    gap: 0;
  }
  .wayback .wb-mark { width: 30px; height: 30px; }
  .wayback .wb-mark span { font-size: 0.82rem; }
  .wayback .wb-hint { display: none; }
}

/* ---------- 殿中即景 ---------- */

.scene p {
  font-size: 0.82rem;
  line-height: 2.4;
  color: var(--dim);
  letter-spacing: 0.1em;
}

.scene p::before {
  content: "◈";
  color: var(--gold-dim);
  margin-right: 0.9em;
  font-size: 0.72em;
}

/* ---------- 未啟之室 · 預留入口 ---------- */

.future-note {
  font-style: normal;
  font-size: 0.66rem;
  color: var(--faint);
  letter-spacing: 0.25em;
}

.sealed-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.9rem;
}

.sealed-slot {
  position: relative;
  overflow: hidden;
  border: 1px dashed rgba(200, 168, 110, 0.2);
  padding: 1.5rem 1rem 1.2rem;
  text-align: center;
  background: rgba(8, 8, 13, 0.5);
  cursor: default;
  transition: border-color 0.5s;
}

.sealed-slot:hover { border-color: var(--line); }

.sealed-slot .s-glyph {
  font-family: var(--kai);
  font-size: 1.6rem;
  color: var(--faint);
  opacity: 0.65;
  display: block;
  animation: breathe 5s ease-in-out infinite;
}

.sealed-slot .s-name {
  display: block;
  margin-top: 0.6rem;
  font-size: 0.8rem;
  letter-spacing: 0.28em;
  color: var(--dim);
}

.sealed-slot .s-note {
  display: block;
  margin-top: 0.45rem;
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  color: var(--faint);
}

.sealed-slot .s-seal {
  position: absolute;
  top: 0.5rem;
  right: 0.55rem;
  font-size: 0.62rem;
  color: var(--crimson);
  border: 1px solid rgba(163, 74, 63, 0.55);
  padding: 0.08rem 0.35rem;
  transform: rotate(6deg);
  letter-spacing: 0.2em;
  opacity: 0.7;
}

/* ---------- 啟封之格（子時自啟 · 封印轉赤） ---------- */

.sealed-slot.open {
  cursor: pointer;
  border-color: rgba(194, 85, 74, 0.55);
  animation: slotBeckon 3.2s ease-in-out infinite;
}

.sealed-slot.open .s-seal {
  color: #d0705f;
  border-color: rgba(208, 112, 95, 0.75);
  text-shadow: 0 0 12px rgba(194, 85, 74, 0.6);
  opacity: 1;
  animation: errFlicker 4s linear infinite;
}

.sealed-slot.open .s-name { color: #d0705f; }
.sealed-slot.open .s-note { color: var(--dim); }

@keyframes slotBeckon {
  0%, 100% { background: rgba(8, 8, 13, 0.5); }
  50%      { background: rgba(58, 18, 16, 0.34); }
}

/* ---------- 子時之匭 ---------- */

.zi-stage {
  position: relative;
  z-index: 2;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 1.2rem 3rem;
  text-align: center;
  gap: 1.3rem;
}

.zi-title {
  font-family: var(--kai);
  font-size: clamp(2.2rem, 7vw, 3.4rem);
  letter-spacing: 0.6em;
  text-indent: 0.6em;
  color: var(--gold-hi);
  text-shadow: 0 0 24px rgba(194, 85, 74, 0.4);
  animation: breathe 7s ease-in-out infinite;
  user-select: none;
}

.zi-sub {
  font-size: 0.72rem;
  letter-spacing: 0.4em;
  text-indent: 0.4em;
  color: var(--dim);
}

.zi-form {
  display: flex;
  align-items: center;
  gap: 1.8rem;
  margin-top: 0.6rem;
}

.zi-input {
  width: min(320px, 74vw);
  padding: 0.72rem 1.1rem;
  background: rgba(6, 6, 10, 0.62);
  border: 1px solid var(--line-soft);
  color: var(--txt);
  font-family: var(--kai);
  font-size: 1.05rem;
  letter-spacing: 0.25em;
  text-align: center;
  outline: none;
  transition: border-color 0.5s, box-shadow 0.5s;
}

.zi-input::placeholder { color: var(--faint); }

.zi-input:focus {
  border-color: var(--line);
  box-shadow: 0 0 18px rgba(194, 85, 74, 0.18);
}

.zi-note {
  font-size: 0.66rem;
  letter-spacing: 0.35em;
  text-indent: 0.35em;
  color: var(--faint);
}

.zi-log {
  width: min(560px, 92vw);
  margin-top: 1.4rem;
  border-top: 1px solid var(--line-soft);
  padding-top: 1rem;
  list-style: none;
  max-height: 13rem;
  overflow: hidden;
}

.zi-log li {
  font-size: 0.74rem;
  color: var(--faint);
  letter-spacing: 0.08em;
  line-height: 2.1;
  text-align: left;
}

.zi-log li .t { color: var(--faint); margin-right: 0.6em; opacity: 0.8; }

.zi-log li.ok { color: #d99a8d; }
.zi-log li.bad { color: var(--faint); }

.zi-tally {
  margin-top: 0.6rem;
  font-size: 0.64rem;
  letter-spacing: 0.3em;
  color: var(--gold-dim);
}

.zi-echo {
  font-size: 0.64rem;
  letter-spacing: 0.3em;
  color: var(--faint);
  animation: errFlicker 6.4s linear infinite;
}