/* ============================================================
   Microsoft 365 導入指南 — 共用樣式
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800&family=Noto+Sans+TC:wght@400;500;700;900&display=swap');

:root {
  --blue-900: #0b2f6b;
  --blue-700: #14509b;
  --blue-600: #1a63c4;
  --blue-500: #2f7fe0;
  --blue-100: #e8f0fd;
  --blue-050: #f4f8fe;
  --teal-500: #0f9d8e;
  --teal-100: #e2f6f3;
  --amber-500: #e8a33d;
  --amber-100: #fbeed9;

  --ink: #101826;
  --ink-soft: #3c4657;
  --muted: #67728a;
  --line: #dbe3f0;
  --paper: #ffffff;
  --paper-sunk: #f6f8fc;
  --shadow: 0 18px 40px -22px rgba(11, 47, 107, 0.35);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 9px;

  --maxw: 1120px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ink: #eef2fb;
    --ink-soft: #c4cee3;
    --muted: #91a0bf;
    --line: #263455;
    --paper: #0f1830;
    --paper-sunk: #0a1224;
    --blue-050: #101d3c;
    --blue-100: #132a52;
    --teal-100: #0e2c2a;
    --amber-100: #3a2c14;
    --shadow: 0 18px 40px -20px rgba(0, 0, 0, 0.6);
  }
}
:root[data-theme="dark"] {
  --ink: #eef2fb;
  --ink-soft: #c4cee3;
  --muted: #91a0bf;
  --line: #263455;
  --paper: #0f1830;
  --paper-sunk: #0a1224;
  --blue-050: #101d3c;
  --blue-100: #132a52;
  --teal-100: #0e2c2a;
  --amber-100: #3a2c14;
  --shadow: 0 18px 40px -20px rgba(0, 0, 0, 0.6);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper-sunk);
  color: var(--ink);
  font-family: 'Outfit', 'Noto Sans TC', 'PingFang TC', 'Microsoft JhengHei', system-ui, sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; }

a { color: inherit; }

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-inline: 24px;
}

/* ---------- Top bar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.topbar-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 17px;
  text-decoration: none;
  color: var(--ink);
  margin-right: auto;
}
.brand-mark {
  width: 40px;
  height: 34px;
  border-radius: 9px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--blue-600), var(--teal-500));
  color: #fff;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: -0.02em;
  white-space: nowrap;
  flex: none;
}
.brand small {
  display: block;
  font-weight: 500;
  font-size: 11px;
  color: var(--muted);
  letter-spacing: .04em;
}
.nav-links {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}
.nav-links a {
  text-decoration: none;
  font-weight: 600;
  font-size: 14.5px;
  color: var(--ink-soft);
  padding: 8px 14px;
  border-radius: 999px;
  transition: background .15s, color .15s;
  white-space: nowrap;
}
.nav-links a:hover { background: var(--blue-100); color: var(--blue-700); }
.nav-links a[aria-current="page"] {
  background: var(--blue-600);
  color: #fff;
}

/* ---------- Hero ---------- */
.hero {
  padding: 64px 0 56px;
  background:
    radial-gradient(900px 420px at 85% -10%, var(--blue-100), transparent 60%),
    radial-gradient(700px 360px at 0% 0%, var(--teal-100), transparent 55%);
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--blue-700);
  background: var(--blue-100);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 18px;
}
h1 {
  font-size: clamp(30px, 4.4vw, 46px);
  line-height: 1.22;
  margin: 0 0 16px;
  font-weight: 800;
  letter-spacing: -0.01em;
  text-wrap: balance;
}
.lede {
  font-size: 18px;
  color: var(--ink-soft);
  max-width: 62ch;
  margin: 0 0 28px;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn-primary { background: var(--blue-600); color: #fff; box-shadow: 0 10px 24px -10px rgba(26,99,196,.6); }
.btn-primary:hover { background: var(--blue-700); }
.btn-ghost { background: var(--paper); color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--blue-500); color: var(--blue-700); }

/* ---------- Page header (non-home pages) ---------- */
.page-head {
  padding: 46px 0 34px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, var(--blue-050), transparent);
}
.page-head h1 { font-size: clamp(26px, 3.6vw, 36px); margin-bottom: 10px; }
.page-head .lede { margin-bottom: 0; }
.crumb {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 14px;
  display: flex;
  gap: 6px;
  align-items: center;
}
.crumb a { text-decoration: none; color: var(--blue-700); font-weight: 600; }

/* ---------- Sections ---------- */
section.block { padding: 56px 0; }
section.block.tight { padding: 36px 0; }
section.block.alt { background: var(--paper); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.section-head { max-width: 68ch; margin-bottom: 34px; }
.section-head .kicker {
  font-size: 12.5px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--teal-500);
  margin-bottom: 8px;
  display: block;
}
.section-head h2 { font-size: clamp(22px, 3vw, 30px); margin: 0 0 10px; font-weight: 800; }
.section-head p { color: var(--muted); margin: 0; font-size: 15.5px; }

/* ---------- Card grid ---------- */
.grid { display: grid; gap: 20px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 980px) { .grid-4, .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; } }

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-decoration: none;
  color: inherit;
  transition: transform .15s, box-shadow .15s, border-color .15s;
}
a.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--blue-500); }

.card-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-size: 21px;
  background: var(--blue-100);
  color: var(--blue-700);
  flex: none;
}
.card h3 { margin: 0; font-size: 18px; font-weight: 700; }
.card p { margin: 0; color: var(--muted); font-size: 14.5px; }
.card .go {
  margin-top: auto;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--blue-600);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* ---------- Feature detail card (features.html) ---------- */
.feature {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 20px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}
.feature:last-child { border-bottom: none; }
.feature .icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  display: grid; place-items: center;
  font-size: 26px;
  background: linear-gradient(135deg, var(--blue-100), var(--teal-100));
  color: var(--blue-700);
}
.feature h3 { margin: 0 0 6px; font-size: 20px; }
.feature .tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--teal-500);
  background: var(--teal-100);
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
}
.feature ul.points {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}
.feature ul.points li {
  padding-left: 22px;
  position: relative;
  font-size: 14.5px;
  color: var(--ink-soft);
}
.feature ul.points li::before {
  content: "";
  position: absolute;
  left: 0; top: 7px;
  width: 8px; height: 8px;
  border-radius: 2px;
  background: var(--blue-500);
}
.usecase {
  margin-top: 14px;
  background: var(--paper-sunk);
  border: 1px dashed var(--line);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: 13.5px;
  color: var(--ink-soft);
}
.usecase b { color: var(--blue-700); }

/* ---------- Table ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--paper); }
table.compare { width: 100%; border-collapse: collapse; min-width: 640px; font-size: 14.5px; }
table.compare th, table.compare td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}
table.compare thead th {
  background: var(--blue-050);
  font-weight: 800;
  color: var(--blue-800, var(--blue-700));
  white-space: nowrap;
}
table.compare tbody tr:last-child td { border-bottom: none; }
table.compare td:first-child, table.compare th:first-child { color: var(--ink-soft); font-weight: 600; }
table.compare .yes { color: var(--teal-500); font-weight: 800; }
table.compare .no { color: var(--muted); }
table.compare .partial { color: var(--amber-500); font-weight: 700; }

/* ---------- Callout ---------- */
.callout {
  border-radius: var(--radius-md);
  padding: 18px 20px;
  font-size: 14.5px;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  border: 1px solid var(--line);
  background: var(--paper);
}
.callout .dot { font-size: 18px; flex: none; line-height: 1.4; }
.callout.info { background: var(--blue-050); border-color: var(--blue-100); }
.callout.warn { background: var(--amber-100); border-color: color-mix(in srgb, var(--amber-500) 40%, var(--line)); }
.callout.todo { background: var(--teal-100); border-color: color-mix(in srgb, var(--teal-500) 35%, var(--line)); }
.callout b { color: var(--ink); }

/* ---------- FAQ accordion ---------- */
.faq-list { display: grid; gap: 12px; }
details.faq {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 4px 20px;
}
details.faq[open] { border-color: var(--blue-500); }
details.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 16px 0;
  font-weight: 700;
  font-size: 15.5px;
  display: flex;
  align-items: center;
  gap: 12px;
}
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::before {
  content: "+";
  flex: none;
  width: 26px; height: 26px;
  border-radius: 8px;
  background: var(--blue-100);
  color: var(--blue-700);
  display: grid; place-items: center;
  font-size: 16px;
  font-weight: 800;
}
details.faq[open] summary::before { content: "–"; }
details.faq .a {
  padding: 0 0 18px 38px;
  color: var(--ink-soft);
  font-size: 14.5px;
}
details.faq .a p { margin: 0 0 10px; }
details.faq .a p:last-child { margin-bottom: 0; }
.faq-cat {
  font-size: 12.5px;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 30px 0 12px;
}
.faq-cat:first-child { margin-top: 0; }

/* ---------- Category header (badge + rule + count) ---------- */
.cat-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 44px 0 18px;
}
.cat-head:first-child { margin-top: 0; }
.cat-badge {
  width: 30px; height: 30px;
  border-radius: 9px;
  flex: none;
  display: grid; place-items: center;
  font-weight: 800;
  font-size: 14px;
  color: #fff;
  background: var(--blue-600);
}
.cat-head.c-teal .cat-badge { background: var(--teal-500); }
.cat-head.c-amber .cat-badge { background: var(--amber-500); }
.cat-head.c-blue .cat-badge { background: var(--blue-600); }
.cat-head.c-ink .cat-badge { background: var(--ink-soft); }
.cat-head h3 {
  margin: 0;
  font-size: 16.5px;
  font-weight: 800;
  white-space: nowrap;
}
.cat-head .rule {
  flex: 1;
  height: 1px;
  background: var(--line);
}
.cat-head .count {
  flex: none;
  font-size: 13px;
  color: var(--muted);
  font-weight: 600;
}

/* ---------- Step-procedure QA cards (for FAQ items with a full walkthrough) ---------- */
.qa-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-bottom: 8px;
}
.qa-grid.single { grid-template-columns: 1fr; }
@media (max-width: 720px) { .qa-grid { grid-template-columns: 1fr; } }

a.qa-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 22px 24px;
  transition: transform .15s, box-shadow .15s, border-color .15s;
}
a.qa-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); border-color: var(--blue-500); }
.qa-card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 8px;
}
.qa-card h4 {
  margin: 0;
  font-size: 17px;
  line-height: 1.5;
}
.qa-card h4 .q-no { color: var(--blue-600); font-weight: 800; margin-right: 4px; }
.qa-status {
  flex: none;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 999px;
  white-space: nowrap;
  background: var(--teal-100);
  color: var(--teal-500);
}
.qa-card p.desc { margin: 8px 0 14px; color: var(--muted); font-size: 14.5px; }
.qa-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.qa-tags span {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ink-soft);
  background: var(--paper-sunk);
  border: 1px solid var(--line);
  padding: 3px 11px;
  border-radius: 999px;
}
.qa-card .go { font-size: 13.5px; font-weight: 700; color: var(--blue-600); }

/* ---------- Step timeline (detail page for a step-procedure FAQ) ---------- */
.track-tabs { display: flex; gap: 10px; margin-bottom: 26px; flex-wrap: wrap; }
.track-tab {
  font-size: 13.5px;
  font-weight: 700;
  padding: 7px 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--ink-soft);
  background: var(--paper);
}
.track-tab.admin { color: var(--blue-700); background: var(--blue-100); border-color: transparent; }
.track-tab.user { color: var(--teal-500); background: var(--teal-100); border-color: transparent; }

.steps { display: grid; gap: 0; counter-reset: step; margin: 0; padding: 0; list-style: none; }
.steps li {
  counter-increment: step;
  position: relative;
  padding: 4px 0 26px 44px;
  border-left: 2px solid var(--line);
  margin-left: 15px;
}
.steps li:last-child { border-left-color: transparent; padding-bottom: 4px; }
.steps li::before {
  content: counter(step);
  position: absolute;
  left: -15px; top: 0;
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--blue-600);
  color: #fff;
  font-weight: 800;
  font-size: 13.5px;
  display: grid; place-items: center;
}
.steps.track-user li::before { background: var(--teal-500); }
.steps li h4 { margin: 0 0 6px; font-size: 15.5px; }
.steps li p { margin: 0; color: var(--ink-soft); font-size: 14.5px; }

.plan-block {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 24px 26px;
  background: var(--paper);
  margin-bottom: 20px;
}
.plan-block .plan-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 16px;
  margin-bottom: 4px;
}
.plan-block .plan-tag {
  font-size: 11.5px;
  font-weight: 800;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--blue-100);
  color: var(--blue-700);
}
.plan-block .plan-desc { color: var(--muted); font-size: 14px; margin: 0 0 18px; }

/* ---------- Service cards (services.html) ---------- */
.svc-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: relative;
}
.svc-card .badge-fill {
  position: absolute;
  top: 18px; right: 18px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .04em;
  color: var(--amber-500);
  background: var(--amber-100);
  padding: 4px 10px;
  border-radius: 999px;
}
.svc-card h3 { margin: 0; font-size: 18.5px; padding-right: 90px; }
.svc-card .stage {
  font-size: 12px;
  font-weight: 700;
  color: var(--blue-700);
  background: var(--blue-100);
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  width: fit-content;
}
.svc-card p { margin: 0; color: var(--muted); font-size: 14.5px; }
.svc-card ul.fill-list {
  margin: 4px 0 0;
  padding-left: 18px;
  font-size: 13.5px;
  color: var(--ink-soft);
}
.svc-card ul.fill-list li { margin-bottom: 4px; }

/* ---------- Footer ---------- */
footer.site {
  border-top: 1px solid var(--line);
  padding: 40px 0 30px;
  color: var(--muted);
  font-size: 13.5px;
}
footer.site .foot-grid {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}
footer.site a { text-decoration: none; color: var(--ink-soft); font-weight: 600; }
footer.site a:hover { color: var(--blue-700); }
footer.site .foot-links { display: flex; gap: 18px; flex-wrap: wrap; }
footer.site .fine { border-top: 1px solid var(--line); padding-top: 16px; }

/* ---------- Credit bar ---------- */
.credit-bar {
  background: var(--blue-900);
  padding: 34px 0 28px;
}
.credit-bar .wrap { text-align: center; }
.credit-icons {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  margin: 0 0 18px;
}
.credit-icons a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: #a9bde0;
  transition: background 0.18s ease, color 0.18s ease;
}
.credit-icons a:hover { background: rgba(255, 255, 255, 0.18); color: #ffffff; }
.credit-icons svg { width: 17px; height: 17px; fill: currentColor; }
.credit-copy { margin: 0; font-size: 12.5px; color: #93a8d1; }
.credit-by { margin: 6px 0 0; font-size: 12.5px; font-weight: 700; color: rgba(255, 255, 255, 0.82); }

.badge-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 8px 6px 16px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink-soft);
}
.badge-cta a.btn { padding: 8px 16px; font-size: 13.5px; }