/* ============================================================================
   Edge Validator — 策略照妖鏡
   設計:法醫實驗室 / X 光機。深色暗房,冷青綠掃描光,等寬字主宰數字與判決。
   單一 accent(cyan-teal),判決三態各有克制而明確的色。無圓角泡泡、無紫漸層。
   ============================================================================ */

/* ---- 字體:數字/判決用等寬 JetBrains-ish;內文用系統無襯線;標題用一個有個性的無襯線 ---- */
/* 全部用系統可得字體,避免外部依賴(CDN 字體會被 GH Pages 的隱私賣點打臉) */

:root {
  /* 暗房底色:近黑帶一點藍冷調,分三層深度 */
  --bg-0: #07090c;          /* 最底:暗房 */
  --bg-1: #0c0f14;          /* 面板 */
  --bg-2: #12161d;          /* 抬升面板 */
  --bg-3: #1a2029;          /* hover / 分隔 */
  --line: #232b36;          /* 邊界線 */
  --line-bright: #33404f;   /* 強調邊界 */

  /* 文字階層 */
  --ink-0: #e8edf2;         /* 主文 */
  --ink-1: #a4b0bd;         /* 次要 */
  --ink-2: #6b7885;         /* 弱化 / 標籤 */
  --ink-3: #465360;         /* 最弱 / 佔位 */

  /* 掃描光:冷青綠。這是唯一的品牌 accent */
  --scan: #38e1c4;          /* 主青綠 */
  --scan-dim: #1f8d7c;      /* 暗青綠 */
  --scan-glow: rgba(56, 225, 196, 0.14);
  --scan-line: rgba(56, 225, 196, 0.30);

  /* 判決三態(克制、非霓虹) */
  --real: #46d08a;          /* 沉穩綠:likely-real */
  --real-dim: #1f6f4c;
  --real-glow: rgba(70, 208, 138, 0.12);
  --overfit: #e05a5a;       /* 警戒紅:likely-overfit(去飽和,非血紅) */
  --overfit-dim: #7a2b2b;
  --overfit-glow: rgba(224, 90, 90, 0.12);
  --incon: #d9a441;         /* 中性琥珀:inconclusive */
  --incon-dim: #7a5c1e;
  --incon-glow: rgba(217, 164, 65, 0.12);

  --mono: "JetBrains Mono", "SF Mono", "Cascadia Mono", "Roboto Mono",
          "Consolas", "Menlo", ui-monospace, monospace;
  --sans: "Inter var", -apple-system, BlinkMacSystemFont, "Segoe UI",
          "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  /* 標題用更緊、更有工程感的字堆(仍是系統可得,但排版更硬) */
  --display: "Archivo", "Helvetica Neue", var(--sans);

  --maxw: 1080px;
  --radius: 2px;            /* 幾乎方角:實驗室器械感 */
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg-0);
  color: var(--ink-0);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.6;
  letter-spacing: 0.005em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* 暗房底噪:極細的網格 + 掃描線紋理,製造 X 光機質感 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 44px 44px;
  opacity: 0.14;
  mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 20%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 20%, transparent 80%);
}

/* 全域極細顆粒(film grain),用 SVG 噪點資料 URI 內嵌 */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.wrap {
  position: relative;
  z-index: 2;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 28px;
}

/* ============================================================================
   排版基元
   ============================================================================ */
.mono { font-family: var(--mono); font-feature-settings: "tnum" 1, "zero" 1; }
.num  { font-family: var(--mono); font-variant-numeric: tabular-nums; letter-spacing: -0.01em; }

.kicker {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--scan);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.kicker::before {
  content: "";
  width: 22px; height: 1px;
  background: var(--scan-dim);
}

h1, h2, h3 { font-family: var(--display); font-weight: 700; letter-spacing: -0.02em; line-height: 1.08; margin: 0; }

/* ============================================================================
   頂欄
   ============================================================================ */
.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  background: linear-gradient(180deg, rgba(7,9,12,0.92), rgba(7,9,12,0.72));
  border-bottom: 1px solid var(--line);
}
.topbar .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}
.brand {
  display: flex; align-items: center; gap: 12px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ink-0);
}
.brand .glyph {
  width: 26px; height: 26px;
  display: grid; place-items: center;
  border: 1px solid var(--scan-dim);
  border-radius: var(--radius);
  color: var(--scan);
  box-shadow: 0 0 14px var(--scan-glow), inset 0 0 8px var(--scan-glow);
}
.brand b { color: var(--scan); font-weight: 600; }
.topbar-right {
  display: flex; align-items: center; gap: 16px;
}
.topbar .status {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-2);
  display: flex; align-items: center; gap: 8px;
  letter-spacing: 0.06em;
}

/* 語言切換:克制的 段式開關,沿用暗房器械感(方角、細邊、青綠 active) */
.lang-toggle {
  display: inline-flex;
  border: 1px solid var(--line-bright);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-2);
}
.lang-btn {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  padding: 5px 11px;
  border: none;
  background: transparent;
  color: var(--ink-2);
  cursor: pointer;
  transition: color .15s, background .15s;
  line-height: 1.4;
}
.lang-btn + .lang-btn { border-left: 1px solid var(--line-bright); }
.lang-btn:hover { color: var(--ink-0); }
.lang-btn[aria-pressed="true"] {
  color: var(--bg-0);
  background: var(--scan);
  font-weight: 600;
}
@media (max-width: 420px) {
  .topbar-right { gap: 10px; }
  .lang-btn { padding: 5px 9px; }
  /* 極窄屏隱藏引擎狀態文字,保留燈點與語言鈕,避免頂欄擠爆 */
  .topbar .status #engineStatus { display: none; }
}
.dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--ink-3);
  box-shadow: 0 0 0 0 transparent;
  transition: background .3s, box-shadow .3s;
}
.dot.warm { background: var(--incon); box-shadow: 0 0 10px var(--incon-glow); animation: pulse 1.4s ease-in-out infinite; }
.dot.live { background: var(--scan); box-shadow: 0 0 10px var(--scan-glow); }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.35} }

/* ============================================================================
   HERO
   ============================================================================ */
.hero {
  position: relative;
  padding: 92px 0 56px;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
/* hero 掃描光束:一條緩慢橫掃的青綠線,像 X 光機探頭 */
.hero .beam {
  position: absolute;
  top: 0; left: -30%;
  width: 60%; height: 100%;
  background: linear-gradient(90deg, transparent, var(--scan-glow) 45%, var(--scan-line) 50%, var(--scan-glow) 55%, transparent);
  filter: blur(6px);
  animation: sweep 9s cubic-bezier(.6,0,.4,1) infinite;
  pointer-events: none;
}
@keyframes sweep { 0%{left:-40%} 55%{left:120%} 100%{left:120%} }

.hero h1 {
  font-size: clamp(38px, 6.5vw, 74px);
  margin: 18px 0 0;
  max-width: 15ch;
}
.hero h1 .accent { color: var(--scan); }
.hero .lede {
  margin: 22px 0 0;
  max-width: 60ch;
  color: var(--ink-1);
  font-size: clamp(16px, 1.9vw, 19px);
  line-height: 1.55;
}
.hero .lede strong { color: var(--ink-0); font-weight: 600; }

.hero-meta {
  margin-top: 34px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
}
.hero-meta .chip {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-1);
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 0;
}
.hero-meta .chip svg { color: var(--scan); flex: none; }

/* 進場動畫:staggered reveal */
.reveal { opacity: 0; transform: translateY(14px); animation: rise .7s cubic-bezier(.2,.7,.2,1) forwards; }
@keyframes rise { to { opacity: 1; transform: none; } }
.d1{animation-delay:.05s}.d2{animation-delay:.15s}.d3{animation-delay:.25s}.d4{animation-delay:.35s}.d5{animation-delay:.45s}

/* ============================================================================
   區塊通用
   ============================================================================ */
section { padding: 54px 0; }
.section-head { margin-bottom: 28px; }
.section-head h2 {
  font-size: clamp(22px, 3vw, 30px);
  margin-top: 12px;
}
.section-head p { color: var(--ink-2); margin: 10px 0 0; max-width: 62ch; }

.step-no {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--scan);
  letter-spacing: 0.2em;
}

/* 面板:方角、細邊、抬升感靠邊線而非陰影 */
.panel {
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

/* ============================================================================
   上傳 / 拖放區
   ============================================================================ */
.drop {
  position: relative;
  border: 1px dashed var(--line-bright);
  border-radius: var(--radius);
  background:
    radial-gradient(120% 100% at 50% 0%, rgba(56,225,196,0.04), transparent 60%),
    var(--bg-1);
  padding: 48px 28px;
  text-align: center;
  cursor: pointer;
  transition: border-color .2s, background .2s, transform .1s;
}
.drop:hover { border-color: var(--scan-dim); }
/* 鍵盤可達性:Tab 聚焦上傳區時給明確 focus 環(Enter/Space 可開檔) */
.drop:focus-visible {
  outline: 2px solid var(--scan);
  outline-offset: 3px;
  border-color: var(--scan-dim);
}
.drop.dragover {
  border-color: var(--scan);
  background: radial-gradient(120% 100% at 50% 0%, var(--scan-glow), transparent 60%), var(--bg-2);
}
.drop .xicon {
  width: 46px; height: 46px;
  margin: 0 auto 16px;
  color: var(--scan);
  filter: drop-shadow(0 0 12px var(--scan-glow));
}
.drop .big { font-family: var(--display); font-size: 19px; font-weight: 600; }
.drop .sub { color: var(--ink-2); font-size: 13px; margin-top: 8px; font-family: var(--mono); }
.drop input[type=file] { display: none; }

.upload-row { display: grid; grid-template-columns: 1fr; gap: 16px; }

.sample-row {
  margin-top: 18px;
  display: flex; flex-wrap: wrap; gap: 12px; align-items: center;
}
.sample-row .label { font-family: var(--mono); font-size: 12px; color: var(--ink-2); letter-spacing: 0.06em; }

/* 示範按鈕:比 ghost 更有邀請感,兩態各帶克制的判決色暗示 */
.sample-btn {
  display: inline-flex; align-items: center; gap: 11px;
  padding: 10px 15px 10px 13px;
  border: 1px solid var(--sb-c, var(--line-bright));
  border-radius: var(--radius);
  background: linear-gradient(120deg, var(--sb-g, transparent), transparent 70%), var(--bg-2);
  color: var(--ink-0);
  cursor: pointer;
  text-align: left;
  transition: border-color .16s, transform .05s, box-shadow .16s, background .16s;
}
.sample-btn:hover { border-color: var(--sb-c, var(--scan-dim)); box-shadow: 0 0 0 1px var(--sb-g, var(--scan-glow)), 0 6px 20px -12px var(--sb-c, var(--scan)); }
.sample-btn:active { transform: translateY(1px); }
.sample-btn.genuine { --sb-c: var(--real-dim);    --sb-g: var(--real-glow); }
.sample-btn.overfit { --sb-c: var(--overfit-dim); --sb-g: var(--overfit-glow); }
.sample-btn .sb-ico {
  flex: none;
  width: 26px; height: 26px;
  display: grid; place-items: center;
  border-radius: var(--radius);
  border: 1px solid var(--sb-c, var(--line));
  color: var(--sb-ic, var(--ink-1));
  background: var(--bg-0);
}
.sample-btn.genuine .sb-ico { --sb-ic: var(--real); }
.sample-btn.overfit .sb-ico { --sb-ic: var(--overfit); }
.sample-btn .sb-txt {
  display: flex; flex-direction: column; gap: 1px;
  font-family: var(--mono); font-size: 13px; font-weight: 600; letter-spacing: 0.01em;
}
.sample-btn .sb-txt em { font-style: normal; font-weight: 400; font-size: 10.5px; color: var(--ink-2); letter-spacing: 0.02em; }

/* 載入步驟燈:讓 Pyodide 等待有節奏、可預期 */
.loader-steps {
  display: flex; align-items: center; flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}
.loader-steps .lstep {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.04em;
  color: var(--ink-3);
  padding-left: 15px;
  position: relative;
  transition: color .3s;
}
.loader-steps .lstep::before {
  content: "";
  position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  width: 7px; height: 7px; border-radius: 50%;
  border: 1px solid var(--line-bright);
  background: var(--bg-3);
  transition: background .3s, border-color .3s, box-shadow .3s;
}
.loader-steps .lstep.done { color: var(--ink-1); }
.loader-steps .lstep.done::before { background: var(--scan-dim); border-color: var(--scan-dim); }
.loader-steps .lstep.active { color: var(--scan); }
.loader-steps .lstep.active::before { background: var(--scan); border-color: var(--scan); box-shadow: 0 0 8px var(--scan); animation: pulse 1.2s ease-in-out infinite; }
.loader-steps .lsep { flex: 1 1 8px; min-width: 8px; max-width: 26px; height: 1px; background: var(--line); }
.loader-foot { font-family: var(--mono); font-size: 10.5px; color: var(--ink-3); margin: 12px 0 0; line-height: 1.5; }
@media (max-width: 560px) {
  .loader-steps .lsep { display: none; }
  .loader-steps { gap: 6px 14px; }
}

/* 檔案摘要 pill */
.file-pill {
  display: none;
  margin-top: 16px;
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--scan);
  background: var(--bg-2);
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink-1);
  align-items: center;
  gap: 12px;
  justify-content: space-between;
}
.file-pill.show { display: flex; }
.file-pill .meta { color: var(--ink-2); font-size: 12px; }
.file-pill .clear { color: var(--ink-2); cursor: pointer; border: none; background: none; font-family: var(--mono); font-size: 12px; }
.file-pill .clear:hover { color: var(--overfit); }

/* ============================================================================
   按鈕
   ============================================================================ */
.btn {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  padding: 11px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--line-bright);
  background: var(--bg-2);
  color: var(--ink-0);
  cursor: pointer;
  transition: border-color .15s, background .15s, color .15s, transform .05s;
}
.btn:hover { border-color: var(--scan-dim); color: var(--scan); }
.btn:active { transform: translateY(1px); }
.btn.ghost { background: transparent; }
.btn.small { padding: 8px 13px; font-size: 12px; }

.btn-scan {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.05em;
  width: 100%;
  padding: 17px 24px;
  margin-top: 22px;
  color: var(--bg-0);
  background: var(--scan);
  border: 1px solid var(--scan);
  border-radius: var(--radius);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: filter .15s, transform .05s, opacity .2s;
  box-shadow: 0 0 0 1px var(--scan-glow), 0 8px 30px -12px var(--scan);
}
.btn-scan:hover:not(:disabled) { filter: brightness(1.08); }
.btn-scan:active:not(:disabled) { transform: translateY(1px); }
.btn-scan:disabled { opacity: .45; cursor: not-allowed; filter: grayscale(.4); }
.btn-scan .spin { display: none; }
.btn-scan.busy .spin { display: inline-block; animation: spin 0.8s linear infinite; }
.btn-scan.busy .txt { opacity: .8; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================================================
   參數輸入
   ============================================================================ */
.params {
  margin-top: 20px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.field {
  background: var(--bg-1);
  padding: 16px 18px;
}
.field label {
  display: flex; align-items: center; gap: 6px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-2);
  margin-bottom: 9px;
}
.field .hint {
  cursor: help;
  color: var(--ink-3);
  border: 1px solid var(--line-bright);
  border-radius: 50%;
  width: 14px; height: 14px;
  display: inline-grid; place-items: center;
  font-size: 9px;
}
.field input, .field select {
  width: 100%;
  background: var(--bg-0);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink-0);
  font-family: var(--mono);
  font-size: 14px;
  padding: 9px 11px;
  transition: border-color .15s, box-shadow .15s;
}
.field input:focus, .field select:focus {
  outline: none;
  border-color: var(--scan-dim);
  box-shadow: 0 0 0 3px var(--scan-glow);
}
.field .sub { font-family: var(--mono); font-size: 10px; color: var(--ink-3); margin-top: 6px; }

/* trials 的滑桿感提示條 */
.trials-scale { display:flex; justify-content:space-between; font-family:var(--mono); font-size:10px; color:var(--ink-3); margin-top:6px; }

/* ============================================================================
   Pyodide 載入條
   ============================================================================ */
.loader {
  display: none;
  margin-top: 22px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--scan);
  border-radius: var(--radius);
  background: var(--bg-1);
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink-1);
}
.loader.show { display: block; }
.loader .msg { display: flex; align-items: center; gap: 10px; }
.loader .msg .dot { width:7px; height:7px; }
/* 效能感知:預估剩餘秒數(右端、mono、低調) */
.loader .msg .eta {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.loader .bar {
  margin-top: 12px;
  height: 3px;
  background: var(--bg-3);
  border-radius: 2px;
  overflow: hidden;
}
.loader .bar span {
  display: block; height: 100%;
  width: 30%;
  background: linear-gradient(90deg, var(--scan-dim), var(--scan));
  box-shadow: 0 0 10px var(--scan-glow);
  transition: width .4s ease;
}
.loader .bar.indeterminate span {
  width: 40%;
  animation: indet 1.1s ease-in-out infinite;
}
@keyframes indet { 0%{margin-left:-40%} 100%{margin-left:100%} }

/* ============================================================================
   錯誤條
   ============================================================================ */
.errbox {
  display: none;
  margin-top: 18px;
  padding: 16px 18px;
  border: 1px solid var(--overfit-dim);
  border-left: 2px solid var(--overfit);
  background: var(--overfit-glow);
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: 13px;
  color: #f0b8b8;
  line-height: 1.5;
}
.errbox.show { display: block; }
.errbox b { color: var(--overfit); }

/* ============================================================================
   判決書(主角)
   ============================================================================ */
#results { display: none; }
#results.show { display: block; animation: rise .6s cubic-bezier(.2,.7,.2,1) both; }

.verdict-card {
  position: relative;
  border: 1px solid var(--line-bright);
  border-radius: var(--radius);
  background: var(--bg-1);
  overflow: hidden;
}
/* 頂部狀態色帶 */
.verdict-card::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--vc, var(--ink-3));
  box-shadow: 0 0 20px var(--vc-glow, transparent);
}
.verdict-card[data-verdict="likely-real"]   { --vc: var(--real);    --vc-glow: var(--real-glow);    --vc-dim: var(--real-dim); }
.verdict-card[data-verdict="likely-overfit"]{ --vc: var(--overfit); --vc-glow: var(--overfit-glow); --vc-dim: var(--overfit-dim); }
.verdict-card[data-verdict="inconclusive"]  { --vc: var(--incon);   --vc-glow: var(--incon-glow);   --vc-dim: var(--incon-dim); }

/* ---- 白話首屏:給不懂統計的朋友,秒懂結論(判決卡最上方,最大字)---- */
.plain-verdict {
  padding: 34px 36px 30px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 90% at 0% 0%, var(--vc-glow, transparent), transparent 52%),
    var(--bg-1);
}
@media (max-width: 640px) { .plain-verdict { padding: 26px 20px 24px; } }

.plain-tag {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--vc, var(--ink-2));
}
.plain-tag .pdot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--vc, var(--ink-3));
  box-shadow: 0 0 10px var(--vc-glow, transparent);
}

/* 一句話結論:最大字。用 display 字堆、行高鬆、顏色主文(不用判決色以免長句刺眼) */
.plain-headline {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(21px, 2.9vw, 30px);
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--ink-0);
  margin: 15px 0 0;
  max-width: 42ch;
}

/* 三個一句話重點:每點一張細卡,層次清楚、易掃 */
.plain-points {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: flex; flex-direction: column;
  gap: 10px;
}
.plain-points li {
  display: flex; gap: 13px;
  align-items: flex-start;
  font-size: 14.5px;
  line-height: 1.56;
  color: var(--ink-1);
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--line-bright);
  border-radius: var(--radius);
  background: var(--bg-2);
  transition: border-color .18s, background .18s;
}
.plain-points li:hover { border-left-color: var(--vc, var(--scan-dim)); background: var(--bg-3); }
.plain-points .pico {
  flex: none;
  font-size: 17px;
  line-height: 1.5;
  width: 22px;
  text-align: center;
  filter: saturate(1.05);
}
.plain-points .ptxt b { color: var(--ink-0); font-weight: 600; }

/* 誠實框架一句(關鍵一句留首屏,長免責在頁尾) */
.plain-frame {
  display: flex; gap: 10px;
  margin: 22px 0 0;
  padding: 13px 16px;
  border: 1px solid var(--incon-dim);
  border-left: 2px solid var(--incon);
  background: var(--incon-glow);
  border-radius: var(--radius);
  font-size: 13px;
  line-height: 1.55;
  color: #e6cf9a;
}
.plain-frame svg { flex: none; margin-top: 3px; color: var(--incon); }
.plain-frame b { color: var(--incon); }

/* 短窗外插醒目警告條(short_calendar_span 從小字警語升級;比 plain-frame 更搶眼) */
.span-warn {
  display: flex; flex-direction: column; gap: 5px;
  margin: 0 0 18px;
  padding: 12px 16px;
  border: 1px solid var(--incon);
  border-left: 4px solid var(--incon);
  background: var(--incon-glow);
  border-radius: var(--radius);
  font-size: 13.5px;
  line-height: 1.6;
  color: #e6cf9a;
}
.span-warn b {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--incon);
}

/* 技術區分隔:告訴一般讀者「以下可略」 */
.tech-divider {
  display: flex; align-items: center; gap: 16px;
  margin: 48px 0 0;
}
.tech-divider-line { flex: 1; height: 1px; background: var(--line); }
.tech-divider-txt {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ink-3);
  white-space: nowrap;
  text-align: center;
}
/* 窄屏(尤其英文較長)允許換行,避免頂出分隔線造成橫向溢出 */
@media (max-width: 560px) {
  .tech-divider-txt { white-space: normal; }
}

.verdict-top {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 0;
}
@media (max-width: 720px) { .verdict-top { grid-template-columns: 1fr; } }

.verdict-main { padding: 34px 34px 30px; border-right: 1px solid var(--line); }
@media (max-width: 720px) { .verdict-main { border-right: none; border-bottom: 1px solid var(--line); } }

.verdict-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-2);
}
.verdict-headline {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(30px, 5vw, 46px);
  letter-spacing: -0.02em;
  line-height: 1.02;
  margin: 12px 0 0;
  color: var(--vc);
  text-shadow: 0 0 30px var(--vc-glow);
  display: flex; align-items: center; gap: 14px;
}
.verdict-headline .stamp {
  flex: none;
  width: 46px; height: 46px;
  border: 2px solid var(--vc);
  border-radius: var(--radius);
  display: grid; place-items: center;
  color: var(--vc);
  box-shadow: inset 0 0 16px var(--vc-glow);
}
.verdict-sub {
  margin-top: 14px;
  color: var(--ink-1);
  font-size: 14.5px;
  max-width: 46ch;
  line-height: 1.55;
}

/* 分數量表 */
.score-pane {
  padding: 34px 34px 30px;
  display: flex; flex-direction: column; justify-content: center;
}
.score-pane .score-num {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 60px;
  letter-spacing: -0.03em;
  color: var(--vc);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.score-pane .score-num small { font-size: 22px; color: var(--ink-3); font-weight: 400; }
.score-pane .score-cap { font-family: var(--mono); font-size: 11px; color: var(--ink-2); letter-spacing: 0.14em; text-transform: uppercase; margin-bottom: 10px; }
.gauge {
  margin-top: 16px;
  height: 8px;
  background: var(--bg-3);
  border: 1px solid var(--line);
  border-radius: 2px;
  position: relative;
  overflow: hidden;
}
.gauge .fill {
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 0%;
  background: linear-gradient(90deg, var(--vc-dim), var(--vc));
  box-shadow: 0 0 14px var(--vc-glow);
  transition: width 1s cubic-bezier(.2,.8,.2,1);
}
.gauge .ticks { position:absolute; inset:0; display:flex; }
.gauge .ticks i { flex:1; border-right:1px solid var(--bg-0); opacity:.5; }
.gauge .ticks i:last-child { border:none; }
.gauge-scale { display:flex; justify-content:space-between; font-family:var(--mono); font-size:10px; color:var(--ink-3); margin-top:6px; }

/* 判決書內文區:reasons + red flags */
.verdict-body {
  border-top: 1px solid var(--line);
  padding: 28px 34px 32px;
}
.reasons-grid { display: grid; grid-template-columns: 1fr; gap: 22px; }
@media (min-width: 860px) { .reasons-grid.has-flags { grid-template-columns: 1.4fr 1fr; } }

.reasons h4, .flags h4 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-2);
  margin: 0 0 14px;
  display: flex; align-items: center; gap: 8px;
}
.reasons ul, .flags ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.reasons li, .flags li {
  display: flex; gap: 11px;
  font-size: 14px; line-height: 1.5;
  color: var(--ink-1);
}
.reasons li svg, .flags li svg { flex: none; margin-top: 3px; }
.reasons li svg { color: var(--scan); }
.flags {
  background: var(--overfit-glow);
  border: 1px solid var(--overfit-dim);
  border-radius: var(--radius);
  padding: 18px 20px;
  align-self: start;
}
.flags h4 { color: var(--overfit); }
.flags li { color: #eec7c7; }
.flags li svg { color: var(--overfit); }

.warnings {
  margin-top: 18px;
  padding: 12px 16px;
  border: 1px solid var(--incon-dim);
  border-left: 2px solid var(--incon);
  background: var(--incon-glow);
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: 12px;
  color: #e6cf9a;
  display: flex; flex-direction: column; gap: 6px;
}

/* ============================================================================
   指標網格
   ============================================================================ */
.metrics-grid {
  margin-top: 22px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.metric {
  background: var(--bg-1);
  padding: 16px 16px 15px;
  position: relative;
}
.metric .k {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-2);
  display: flex; align-items: center; gap: 5px;
}
.metric .v {
  font-family: var(--mono);
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-top: 8px;
  color: var(--ink-0);
  font-variant-numeric: tabular-nums;
}
.metric .v.pos { color: var(--real); }
.metric .v.neg { color: var(--overfit); }
.metric .v.warn { color: var(--incon); }
.metric .v small { font-size: 13px; color: var(--ink-3); }

/* ============================================================================
   檢定卡(DSR / permutation / PBO / FWER / cost / bench)
   ============================================================================ */
.gates {
  margin-top: 22px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 16px;
}
.gate {
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 22px;
}
.gate .gate-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.gate .gate-title { font-family: var(--display); font-weight: 700; font-size: 16px; }
.gate .gate-title small { display:block; font-family: var(--mono); font-size:10px; color:var(--ink-3); font-weight:400; letter-spacing:0.06em; margin-top:2px; text-transform:uppercase; }
.badge {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 9px;
  border-radius: var(--radius);
  border: 1px solid currentColor;
  white-space: nowrap;
}
.badge.pass { color: var(--real); background: var(--real-glow); }
.badge.fail { color: var(--overfit); background: var(--overfit-glow); }
.badge.mid  { color: var(--incon); background: var(--incon-glow); }
.badge.na   { color: var(--ink-3); border-color: var(--line-bright); }

.gate p.gate-note { color: var(--ink-2); font-size: 13px; line-height: 1.5; margin: 0 0 14px; }
/* 矩陣模式 permutation 卡的誠實加註(此閘對「挑最好那欄」選擇偏誤失真 → 以 FWER/PBO 為準) */
.gate .gate-caveat { color: var(--incon); font-style: normal; font-size: 12.5px; }
.gate .kv { display: flex; flex-direction: column; gap: 8px; }
.gate .kv .row { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; font-family: var(--mono); font-size: 13px; }
.gate .kv .row .kk { color: var(--ink-2); }
.gate .kv .row .vv { color: var(--ink-0); font-variant-numeric: tabular-nums; }
.gate .kv .row .vv.pos { color: var(--real); }
.gate .kv .row .vv.neg { color: var(--overfit); }

/* 迷你 DSR / permutation 進度視覺:一條有門檻標記的條 */
.threshbar { margin-top: 4px; height: 6px; background: var(--bg-3); border:1px solid var(--line); border-radius:2px; position: relative; overflow: hidden; }
.threshbar .f { position:absolute; left:0; top:0; bottom:0; background: var(--scan-dim); }
.threshbar .mark { position:absolute; top:-3px; bottom:-3px; width:2px; background: var(--incon); }

/* ============================================================================
   圖表
   ============================================================================ */
.charts { margin-top: 22px; display: grid; grid-template-columns: 1fr; gap: 16px; }
@media (min-width: 900px) { .charts { grid-template-columns: 1.25fr 1fr; } }
.chart-card {
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 22px 16px;
}
.chart-card h4 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-2);
  margin: 0 0 4px;
}
.chart-card .cap { font-size: 12px; color: var(--ink-3); margin: 0 0 14px; }
.chart-card svg { width: 100%; height: auto; display: block; }
.legend { display: flex; gap: 18px; margin-top: 12px; font-family: var(--mono); font-size: 11px; color: var(--ink-2); flex-wrap: wrap; }
.legend span { display: inline-flex; align-items: center; gap: 7px; }
.legend i { width: 14px; height: 3px; border-radius: 2px; display: inline-block; }

/* SVG 內用到的類別 */
.axis-line { stroke: var(--line); stroke-width: 1; }
.grid-line { stroke: var(--line); stroke-width: 1; stroke-dasharray: 2 4; opacity: .55; }
.axis-text { fill: var(--ink-3); font-family: var(--mono); font-size: 10px; }
.axis-caption { fill: var(--ink-2); font-size: 10.5px; letter-spacing: 0.02em; }
.eq-strat { fill: none; stroke: var(--scan); stroke-width: 2; filter: drop-shadow(0 0 5px var(--scan-glow)); }
.eq-bench { fill: none; stroke: var(--ink-2); stroke-width: 1.5; stroke-dasharray: 4 3; }
.eq-area  { fill: url(#eqgrad); opacity: .5; }
.eq-end-halo { fill: var(--scan); opacity: .22; }
.eq-end-dot  { fill: var(--scan); stroke: var(--bg-1); stroke-width: 1.5; filter: drop-shadow(0 0 6px var(--scan)); }
.null-curve { fill: none; stroke: var(--scan); stroke-width: 1.6; opacity: .82; }
.hist-bar { fill: var(--scan-dim); opacity: .55; }
.hist-real { stroke: var(--real); stroke-width: 2.2; filter: drop-shadow(0 0 6px currentColor); }
.hist-p95  { stroke: var(--incon); stroke-width: 1.5; stroke-dasharray: 3 3; }
.hist-p95-txt { fill: var(--incon); opacity: .85; }
.null-flag-txt { fill: var(--bg-0); font-family: var(--mono); font-size: 11px; font-weight: 600; letter-spacing: 0.02em; }

/* 圖表空狀態 */
.chart-empty {
  padding: 44px 16px;
  text-align: center;
  color: var(--ink-2);
  font-size: 13px;
  line-height: 1.7;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  background: var(--bg-0);
}
.chart-empty span { color: var(--ink-3); font-family: var(--mono); font-size: 11px; }

/* ---- 「你贏過 X% 的隨機版本」金句橫幅(作品集必殺一行)---- */
.chart-card--null { display: flex; flex-direction: column; }
.null-banner {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px 9px;
  margin: 0 0 16px;
  padding: 13px 16px;
  border: 1px solid var(--nb-c, var(--line-bright));
  border-left: 3px solid var(--nb-c, var(--scan));
  border-radius: var(--radius);
  background: linear-gradient(100deg, var(--nb-g, var(--scan-glow)), transparent 78%), var(--bg-2);
}
.null-banner.good { --nb-c: var(--real);    --nb-g: var(--real-glow); }
.null-banner.mid  { --nb-c: var(--incon);   --nb-g: var(--incon-glow); }
.null-banner.bad  { --nb-c: var(--overfit); --nb-g: var(--overfit-glow); }
.null-banner .nb-lead { font-size: 14px; color: var(--ink-1); }
.null-banner .nb-num {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 34px;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--nb-c, var(--scan));
  font-variant-numeric: tabular-nums;
  text-shadow: 0 0 20px var(--nb-g, transparent);
}
.null-banner .nb-num small { font-size: 17px; font-weight: 600; margin-left: 1px; }
.null-banner .nb-tail { font-size: 14px; color: var(--ink-1); }
.null-banner .nb-tail em { font-style: normal; font-family: var(--mono); font-size: 11.5px; color: var(--ink-3); letter-spacing: 0.02em; }

/* ============================================================================
   FAQ / 方法論
   ============================================================================ */
.method {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.method .cell { background: var(--bg-1); padding: 24px 24px; }
.method .cell .n { font-family: var(--mono); font-size: 11px; color: var(--scan); letter-spacing: 0.16em; }
.method .cell h5 { font-family: var(--display); font-weight: 700; font-size: 16px; margin: 10px 0 8px; }
.method .cell p { color: var(--ink-2); font-size: 13.5px; margin: 0; line-height: 1.55; }

/* ============================================================================
   頁尾 + 免責
   ============================================================================ */
.disclaimer {
  margin-top: 8px;
  border: 1px solid var(--incon-dim);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--incon-glow), transparent);
  padding: 22px 26px;
}
.disclaimer h4 { font-family: var(--mono); font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--incon); margin: 0 0 12px; display:flex; align-items:center; gap:8px; }
.disclaimer ul { margin: 0; padding-left: 0; list-style: none; display: flex; flex-direction: column; gap: 9px; }
.disclaimer li { display:flex; gap:10px; color: var(--ink-1); font-size: 13.5px; line-height: 1.5; }
.disclaimer li svg { flex:none; margin-top:3px; color: var(--incon); }

footer {
  border-top: 1px solid var(--line);
  padding: 34px 0 60px;
  margin-top: 20px;
}
footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 18px; align-items: center; }
footer .fbrand { font-family: var(--mono); font-size: 12px; color: var(--ink-2); }
footer .fbrand b { color: var(--scan); }
footer .fnote { font-family: var(--mono); font-size: 11px; color: var(--ink-3); max-width: 52ch; line-height: 1.5; }

/* ============================================================================
   輔助
   ============================================================================ */
.sr-only { position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); border:0; }
.hidden { display: none !important; }

/* 尊重減少動態偏好 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}

/* 手機 */
@media (max-width: 640px) {
  .wrap { padding: 0 18px; }
  .hero { padding: 64px 0 40px; }
  section { padding: 40px 0; }
  .verdict-main, .score-pane, .verdict-body { padding-left: 22px; padding-right: 22px; }
  .score-pane { padding-top: 26px; padding-bottom: 26px; }
  .score-pane .score-num { font-size: 48px; }
  /* 示範按鈕在窄屏各佔一行,點擊面積更大 */
  .sample-row { flex-direction: column; align-items: stretch; }
  .sample-row .label { margin-bottom: 2px; }
  .sample-btn { width: 100%; }
  /* 金句橫幅數字在窄屏不擠壓 */
  .null-banner .nb-num { font-size: 30px; }
}

/* 極窄(≤380px):進一步收斂,確保不破版 */
@media (max-width: 380px) {
  .wrap { padding: 0 14px; }
  .plain-verdict { padding: 22px 16px 22px; }
  .plain-points li { padding: 11px 12px; font-size: 14px; }
  .verdict-main, .score-pane, .verdict-body { padding-left: 16px; padding-right: 16px; }
  .verdict-headline { gap: 10px; }
  .verdict-headline .stamp { width: 38px; height: 38px; }
  .metrics-grid { grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); }
  .null-banner { padding: 12px 13px; }
  .null-banner .nb-num { font-size: 27px; }
}