:root {
  --green: #315f2b;
  --green-2: #5e963f;
  --green-soft: #edf5e9;
  --ink: #183126;
  --muted: #617168;
  --line: #d7dfd4;
  --paper: #fff;
  --canvas: #f6f4e9;
  --warning: #9b5b00;
  --danger: #b42318;
  color-scheme: light;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--canvas);
  font-family: "Noto Sans TC", "Microsoft JhengHei", system-ui, sans-serif;
  line-height: 1.7;
  overflow-wrap: anywhere;
}
a { color: var(--green); }
button, input, select { font: inherit; }
button { cursor: pointer; }

.site-header {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}
.topbar {
  width: min(1180px, calc(100% - 32px));
  margin: auto;
  padding: 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.eyebrow { margin: 0; color: var(--green-2); font-weight: 800; }
h1 { margin: 2px 0 0; font-size: clamp(1.55rem, 4vw, 2.25rem); line-height: 1.25; }
h2 { margin: 0 0 14px; font-size: 1.4rem; }
h3 { margin: 0 0 8px; font-size: 1.08rem; }
p { margin: 7px 0; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 8px 15px;
  border: 1px solid var(--green-2);
  border-radius: 9px;
  background: var(--paper);
  color: var(--green);
  font-weight: 700;
  text-decoration: none;
}
.btn.primary { background: var(--green-2); color: #fff; }
.btn:focus-visible, .filter-btn:focus-visible, input:focus-visible, select:focus-visible {
  outline: 3px solid #bfd9af;
  outline-offset: 2px;
}

main { width: min(1180px, calc(100% - 32px)); margin: 22px auto 52px; }
.intro, .section, .toc {
  margin-bottom: 18px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--paper);
}
.muted { color: var(--muted); }
.note {
  margin: 13px 0;
  padding: 12px 14px;
  border-left: 4px solid var(--green-2);
  border-radius: 6px;
  background: var(--green-soft);
}
.note.warning { border-left-color: #d18a19; background: #fff7e8; color: #633d00; }
.note.danger { border-left-color: var(--danger); background: #fff0ee; color: #7a271a; }

.role-row, .tag-row { display: flex; flex-wrap: wrap; gap: 7px; margin: 8px 0; }
.role, .tag {
  display: inline-flex;
  align-items: center;
  min-height: 29px;
  padding: 2px 10px;
  border-radius: 999px;
  background: var(--green-soft);
  color: var(--green);
  font-size: .88rem;
  font-weight: 750;
}
.role.manager { background: #edf3ff; color: #234f9b; }
.role.hr { background: #f5edff; color: #6941a5; }
.role.admin { background: #fff0e8; color: #93431a; }

.guide-grid, .feature-grid, .step-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 14px;
}
.guide-card, .feature-card, .step-card, .coverage-item {
  padding: 17px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--paper);
}
.guide-card { display: flex; flex-direction: column; min-height: 235px; }
.guide-card .btn { margin-top: auto; align-self: flex-start; }
.category { color: var(--green-2); font-size: .88rem; font-weight: 800; }
.feature-card dl { margin: 10px 0 0; }
.feature-card dt { margin-top: 9px; color: var(--muted); font-size: .86rem; font-weight: 750; }
.feature-card dd { margin: 1px 0 0; }
.steps { margin: 8px 0 0; padding-left: 1.3rem; }
.steps li + li { margin-top: 5px; }

.hero-guide {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(270px, .65fr);
  gap: 22px;
  align-items: start;
}
.quick-facts { display: grid; gap: 10px; }
.quick-facts div {
  display: grid;
  gap: 2px;
  padding: 13px 15px;
  border: 1px solid #cfe0c8;
  border-radius: 11px;
  background: var(--green-soft);
}
.quick-facts strong { color: var(--green); }
.quick-facts span { color: var(--muted); font-size: .92rem; }

.comparison-wrap {
  max-width: 100%;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: #fff;
}
.guide-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
}
.guide-table th,
.guide-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}
.guide-table th { background: var(--green-soft); color: var(--green); }
.guide-table tr:last-child td { border-bottom: 0; }
.guide-table td:last-child,
.guide-table th:last-child { text-align: center; }

.flow-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}
.flow-strip span {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 5px 11px;
  border-radius: 999px;
  background: var(--green-soft);
  color: var(--green);
  font-weight: 750;
}
.chapter { border-left: 5px solid var(--green-2); }
.chapter-kicker {
  margin: 0 0 2px;
  color: var(--green-2);
  font-size: .9rem;
  font-weight: 800;
}
.walkthrough-step {
  margin-bottom: 18px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--paper);
  scroll-margin-top: 14px;
}
.walkthrough-step.critical-step {
  border: 2px solid #d18a19;
  background: #fffdf8;
}
.step-copy {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 13px;
  align-items: start;
  margin-bottom: 16px;
}
.step-number {
  display: inline-grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border-radius: 50%;
  background: var(--green-2);
  color: #fff;
  font-size: 1.1rem;
  font-weight: 850;
}
.tip {
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: 8px;
  background: var(--green-soft);
  color: var(--green);
}
.device-shot-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(240px, .55fr);
  gap: 14px;
  align-items: start;
}
.device-shot-grid figure {
  min-width: 0;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: #fff;
}
.device-shot-grid a {
  display: block;
  background: #eef2ed;
}
.device-shot-grid a:focus-visible {
  outline: 4px solid #bfd9af;
  outline-offset: -4px;
}
.device-shot-grid img {
  display: block;
  width: 100%;
  height: auto;
}
.device-shot-grid figcaption {
  padding: 10px 12px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .9rem;
}

.controls {
  display: grid;
  grid-template-columns: minmax(230px, 1fr) auto;
  gap: 12px;
  align-items: end;
}
.control label { display: block; margin-bottom: 5px; font-weight: 750; }
.control input, .control select {
  width: 100%;
  min-height: 46px;
  padding: 9px 12px;
  border: 1px solid #afbbb0;
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
}
.filters { display: flex; flex-wrap: wrap; gap: 7px; }
.filter-btn {
  min-height: 42px;
  padding: 7px 12px;
  border: 1px solid var(--green-2);
  border-radius: 999px;
  background: #fff;
  color: var(--green);
}
.filter-btn[aria-pressed="true"] { background: var(--green); color: #fff; }
.result-count { margin-top: 12px; color: var(--muted); }
.empty { display: none; padding: 20px; text-align: center; color: var(--muted); }

.toc ul { display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; list-style: none; }
.toc a {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  padding: 6px 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  text-decoration: none;
  background: #fff;
}
.coverage-list { display: grid; gap: 9px; }
.coverage-item {
  display: grid;
  grid-template-columns: minmax(160px, .8fr) minmax(170px, 1fr) minmax(220px, 1.4fr);
  gap: 12px;
  align-items: center;
}
.coverage-item strong { color: var(--green); }
.coverage-item a { font-weight: 750; }
.mini-label { display: block; color: var(--muted); font-size: .78rem; font-weight: 750; }
details {
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}
details:last-child { border-bottom: 0; }
summary { cursor: pointer; font-weight: 800; }
.footer { padding: 26px 16px 38px; color: var(--muted); text-align: center; }
[hidden] { display: none !important; }

@media (max-width: 760px) {
  .topbar { align-items: flex-start; flex-direction: column; }
  .actions { width: 100%; }
  .actions .btn { flex: 1 1 130px; }
  .controls { grid-template-columns: 1fr; }
  .coverage-item { grid-template-columns: 1fr; gap: 5px; }
  .guide-grid, .feature-grid, .step-grid { grid-template-columns: 1fr; }
  .hero-guide, .device-shot-grid { grid-template-columns: 1fr; }
  .walkthrough-step { padding: 17px; }
}

@media (max-width: 420px) {
  .topbar, main { width: min(100% - 20px, 1180px); }
  .intro, .section, .toc { padding: 16px; border-radius: 11px; }
  .filters { display: grid; grid-template-columns: 1fr 1fr; }
  .filter-btn { width: 100%; }
  .step-copy { grid-template-columns: 34px minmax(0, 1fr); gap: 9px; }
  .step-number { width: 34px; height: 34px; font-size: 1rem; }
}