/* ======================================================
   Function Map — IPCS 智慧工地 × 智慧 BIM 功能地圖
   色系沿用官網 colors_and_type.css 的變數，不另外引入品牌外的顏色
   ====================================================== */
.lx-fm {
  position: fixed;
  top: var(--lx-nav-height);
  left: 0; right: 0; bottom: 0;
  background: var(--lx-canvas);
  z-index: var(--lx-z-overlay);
  overflow-y: auto;
  overflow-x: hidden;
  opacity: 0;
  pointer-events: none;
  transition: opacity 500ms var(--lx-ease-standard);
}
.lx-fm.is-open { opacity: 1; pointer-events: auto; }

/* ---- Hero ---- */
.lx-fm-hero {
  max-width: var(--lx-container-max);
  margin: 0 auto;
  padding: 70px var(--lx-gutter) 40px;
  text-align: center;
}
.lx-fm-hero .lx-eyebrow {
  display: block;
  font-size: 11px;
  letter-spacing: 4px;
  color: var(--lx-gold);
  font-family: var(--lx-font-mono);
  font-weight: 700;
  margin-bottom: 18px;
}
.lx-fm-hero h1 {
  font-size: clamp(1.7rem, 3.4vw, 2.6rem);
  letter-spacing: 5px;
  font-weight: 500;
  color: var(--lx-ink-1);
  margin: 0 0 20px;
  line-height: 1.35;
}
.lx-fm-hero p {
  font-size: 15px;
  line-height: 2.1;
  letter-spacing: 1.5px;
  color: var(--lx-ink-3);
  max-width: 760px;
  margin: 0 auto;
}
.lx-fm-legend {
  display: flex; flex-wrap: wrap;
  justify-content: center; gap: 10px 26px;
  margin-top: 28px;
}
.lx-fm-legend span {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12.5px; letter-spacing: 2px; color: var(--lx-ink-4);
}
.lx-fm-legend i { width: 11px; height: 11px; border-radius: 50%; display: block; }
.lx-fm-legend i.is-site   { background: var(--lx-gold); }
.lx-fm-legend i.is-manage { background: var(--lx-ink-2); }
.lx-fm-legend i.is-stage  { background: var(--lx-border-strong); }

/* ---- 桌機環狀圖 ---- */
.lx-fm-ring {
  max-width: var(--lx-container-max);
  margin: 0 auto;
  padding: 0 var(--lx-gutter) 40px;
}
/* 環圖維持正方形比例，限高避免整張圖超出一個視窗高度 */
.lx-fm-ring svg { width: 100%; max-width: 680px; height: auto; display: block; margin: 0 auto; }

/* 管理端環：一條淡底線界定範圍，不搶視覺 */
.lx-fm-band.is-manage {
  fill: none;
  stroke: var(--lx-border-strong);
  stroke-width: 40;
  opacity: .38;
}
.lx-fm-bandlabel {
  text-anchor: middle;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 5px;
  fill: var(--lx-ink-3);
}

/* 作業端三段時間帶：同一個金色系，只用深淺區分日班／黃昏／夜班 */
.lx-fm-opsband path { stroke: var(--lx-surface); stroke-width: 2; }
.lx-fm-opsband.is-day path   { fill: #F6EDDD; }
.lx-fm-opsband.is-dusk path  { fill: #EADCC2; }
.lx-fm-opsband.is-night path { fill: #DED0B4; }
.lx-fm-opsband text {
  text-anchor: middle;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 3px;
  fill: var(--lx-ink-2);
}

.lx-fm-stage path {
  fill: var(--lx-surface);
  stroke: var(--lx-border-strong);
  stroke-width: 1;
}
.lx-fm-stage text {
  fill: var(--lx-ink-3);
  font-size: 19px;
  font-weight: 500;
  letter-spacing: 5px;
  text-anchor: middle;
}

.lx-fm-node { cursor: pointer; outline: none; }
.lx-fm-node text {
  text-anchor: middle;
  font-weight: 500;
  pointer-events: none;
}

.lx-fm-node.is-site circle {
  fill: var(--lx-gold);
  stroke: var(--lx-gold);
  transition: fill var(--lx-dur-base), transform var(--lx-dur-base);
}
.lx-fm-node.is-site text { fill: #fff; font-size: 16px; letter-spacing: 2px; }
.lx-fm-node.is-site:hover circle,
.lx-fm-node.is-site:focus-visible circle { fill: var(--lx-gold-hover); }

.lx-fm-node.is-manage rect {
  fill: var(--lx-ink-2);
  transition: fill var(--lx-dur-base);
}
.lx-fm-node.is-manage text { fill: #fff; font-size: 14px; letter-spacing: 2px; }
.lx-fm-node.is-manage:hover rect,
.lx-fm-node.is-manage:focus-visible rect { fill: var(--lx-ink-1); }

.lx-fm-core circle {
  fill: var(--lx-surface);
  stroke: var(--lx-gold);
  stroke-width: 1.5;
}
.lx-fm-core text {
  text-anchor: middle;
  fill: var(--lx-ink-2);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 2px;
}

/* 生命週期卡片（桌機環外的補充） */
.lx-fm-stagecards {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: var(--lx-border);
  border: 1px solid var(--lx-border);
  margin-top: 10px;
}
.lx-fm-stagecard { background: var(--lx-surface); padding: 22px 20px; }
.lx-fm-stagecard h4 {
  font-size: 14px; letter-spacing: 3px; color: var(--lx-ink-2);
  font-weight: 500; margin: 0 0 14px;
}

/* ---- 共用 chip ---- */
.lx-fm-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.lx-fm-chips button,
.lx-fm-chips span {
  font-size: 12.5px;
  letter-spacing: 1.5px;
  color: var(--lx-ink-3);
  background: var(--lx-surface-alt);
  border: 1px solid var(--lx-border-strong);
  border-radius: var(--lx-radius-pill, 999px);
  padding: 7px 14px;
  cursor: pointer;
  transition: all var(--lx-dur-base);
}
.lx-fm-chips span { cursor: default; }
.lx-fm-chips button:hover {
  border-color: var(--lx-gold);
  color: var(--lx-gold);
  background: var(--lx-surface);
}

/* ---- 手機卡片流程（桌機隱藏） ---- */
.lx-fm-cards { display: none; }
.lx-fm-cardgroup { margin-bottom: 34px; }
.lx-fm-cardgroup h3 {
  font-size: 14px; letter-spacing: 3px; font-weight: 500;
  color: var(--lx-ink-2); margin: 0 0 14px;
  padding-left: 12px; border-left: 3px solid var(--lx-gold);
}
.lx-fm-cardgroup.is-bim h3    { border-left-color: var(--lx-yellow); }
.lx-fm-cardgroup.is-manage h3 { border-left-color: var(--lx-ink-2); }
.lx-fm-cardgroup.is-night h3  { border-left-color: var(--lx-ink-3); }
.lx-fm-cardlist { display: flex; flex-direction: column; gap: 10px; }
.lx-fm-card {
  display: flex; flex-direction: column; gap: 6px;
  text-align: left;
  background: var(--lx-surface);
  border: 1px solid var(--lx-border);
  padding: 16px 18px;
  cursor: pointer;
  transition: border-color var(--lx-dur-base);
}
.lx-fm-card:hover { border-color: var(--lx-gold); }
.lx-fm-card-cat { font-size: 11px; letter-spacing: 2px; color: var(--lx-gold); font-family: var(--lx-font-mono); }
.lx-fm-card-title { font-size: 16px; letter-spacing: 2px; color: var(--lx-ink-2); font-weight: 500; }
.lx-fm-card-sum { font-size: 13.5px; line-height: 1.85; letter-spacing: 1px; color: var(--lx-ink-3); }

/* ---- 模組索引 ---- */
.lx-fm-index {
  max-width: var(--lx-container-max);
  margin: 0 auto;
  padding: 30px var(--lx-gutter) 90px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}
.lx-fm-index h3 {
  font-size: 13px; letter-spacing: 3px; font-weight: 500;
  color: var(--lx-ink-2); margin: 0 0 16px;
  padding-bottom: 12px; border-bottom: 1px solid var(--lx-border-strong);
}

/* ---- 模組說明遮罩 ---- */
.lx-fm-modal {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.45);
  z-index: var(--lx-z-toast);
  display: flex; align-items: center; justify-content: center;
  padding: 30px 20px;
  animation: lxFmFade 220ms var(--lx-ease-standard);
}
@keyframes lxFmFade { from { opacity: 0 } to { opacity: 1 } }
.lx-fm-modal-panel {
  position: relative;
  background: var(--lx-surface);
  max-width: 720px; width: 100%;
  max-height: 100%;
  overflow-y: auto;
  padding: 44px 46px 40px;
}
.lx-fm-modal-x {
  position: absolute; top: 16px; right: 18px;
  background: transparent; border: 0;
  font-size: 26px; line-height: 1;
  color: var(--lx-ink-4); cursor: pointer;
}
.lx-fm-modal-x:hover { color: var(--lx-gold); }
.lx-fm-modal-kicker {
  font-size: 11px; letter-spacing: 3px; color: var(--lx-gold);
  font-family: var(--lx-font-mono); font-weight: 700;
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px;
}
.lx-fm-modal-kicker em {
  font-style: normal; color: var(--lx-ink-4);
  border: 1px solid var(--lx-border-strong);
  border-radius: var(--lx-radius-pill, 999px);
  padding: 3px 10px; letter-spacing: 1.5px; font-weight: 400;
}
.lx-fm-modal-panel h2 {
  font-size: 1.7rem; letter-spacing: 4px; font-weight: 500;
  color: var(--lx-ink-1); margin: 14px 0 12px; line-height: 1.35;
}
.lx-fm-modal-sum {
  font-size: 15px; line-height: 1.95; letter-spacing: 1.5px;
  color: var(--lx-ink-2); font-weight: 500; margin: 0 0 14px;
}
.lx-fm-modal-desc {
  font-size: 14.5px; line-height: 2; letter-spacing: 1px;
  color: var(--lx-ink-3); margin: 0 0 28px;
}
.lx-fm-modal-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.lx-fm-modal-grid h4,
.lx-fm-modal-related h4 {
  font-size: 12px; letter-spacing: 3px; font-weight: 500;
  color: var(--lx-ink-2); margin: 0 0 12px;
}
.lx-fm-modal-grid ul { list-style: none; margin: 0; padding: 0; }
.lx-fm-modal-grid li {
  position: relative; padding-left: 18px; margin-bottom: 9px;
  font-size: 14px; line-height: 1.85; letter-spacing: 1px; color: var(--lx-ink-3);
}
.lx-fm-modal-grid li::before {
  content: ''; position: absolute; left: 0; top: 11px;
  width: 7px; height: 1px; background: var(--lx-gold);
}
.lx-fm-modal-grid .is-pain li::before { background: var(--lx-danger); }
.lx-fm-modal-related { margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--lx-border); }

/* ---- RWD ---- */
@media (max-width: 1100px) {
  .lx-fm-stagecards { grid-template-columns: repeat(2, 1fr); }
  .lx-fm-index { grid-template-columns: 1fr; gap: 30px; }
}
@media (max-width: 820px) {
  /* 手機不硬縮大圓圖，改走卡片流程 */
  .lx-fm-ring { display: none; }
  .lx-fm-cards { display: block; max-width: var(--lx-container-max); margin: 0 auto; padding: 10px var(--lx-gutter) 20px; }
  .lx-fm-hero { padding: 44px var(--lx-gutter) 30px; }
  .lx-fm-modal { padding: 0; align-items: stretch; }
  .lx-fm-modal-panel { padding: 40px 24px 32px; max-height: 100%; }
  .lx-fm-modal-grid { grid-template-columns: 1fr; gap: 22px; }
}