/* ================================================================
   LifeCOM v3 — Engineered Editorial Design System
   Direction  : Engineered Editorial (Ghost-quality B2B)
   Typography : Space Grotesk (display/UI) + Noto Sans TC (body)
   Palette    : Warm cream base + single teal accent
   Spacing    : 120–140px section breathing room
   Icons      : SVG line icons only — zero emoji
   ================================================================ */

:root {
  /* Neutral — warm, not cold */
  --bg       : #F8F7F4;
  --bg-alt   : #EFEDE7;
  --surface  : #FFFFFF;
  --dark     : #111110;

  /* Ink scale */
  --ink      : #1C1B18;
  --ink-2    : #57534E;
  --ink-3    : #9C9690;
  --line     : #E4E2DC;

  /* Single accent: operational teal */
  --accent   : #0E7A6B;
  --accent-h : #0CA090;
  --accent-bg: #F0FBF9;

  /* Code */
  --mono-bg  : #0F1115;

  /* Layout */
  --maxw     : 1160px;
  --r        : 10px;
  --sp       : 120px;   /* section padding */
}

/* ── Reset ─────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: 'Noto Sans TC', -apple-system, 'PingFang TC',
               'Microsoft JhengHei', sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img   { max-width: 100%; height: auto; display: block; }
a     { color: inherit; text-decoration: none; }
a:hover { opacity: 1; }

/* All headings use Space Grotesk */
h1, h2, h3, h4, h5 {
  font-family: 'Space Grotesk', 'Noto Sans TC', sans-serif;
  line-height: 1.08;
  letter-spacing: -0.025em;
}

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 28px;
}

/* ================================================================
   NAVBAR
   ================================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(248, 247, 244, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

/* Logo sits directly on cream — no white box needed */
.nav .brand { display: inline-flex; align-items: center; }
.nav .brand img { height: 40px; width: auto; display: block; }

.nav-links {
  display: flex;
  gap: 36px;
  align-items: center;
  list-style: none;
}

.nav-links a {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-2);
  letter-spacing: 0.01em;
  transition: color 0.15s;
}
.nav-links a:hover { color: var(--ink); }

.nav .cta {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.01em;
  background: var(--dark);
  color: #fff;
  padding: 9px 20px;
  border-radius: 999px;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.2s;
}
.nav .cta:hover { background: var(--accent); }

@media (max-width: 768px) {
  .nav-links { display: none; }
}

/* ================================================================
   HERO
   ================================================================ */
.hero {
  padding: 140px 0 100px;
  background: var(--bg);
}
.hero.hero-sub {
  padding: 96px 0 72px;
  text-align: center;
}
.hero.hero-sub h1 { margin-left: auto; margin-right: auto; }
.hero.hero-sub .sub { margin-left: auto; margin-right: auto; }
.hero.hero-sub .btn-row { justify-content: center; }

/* Eyebrow pill */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 11px;
  font-weight: 700;
  color: var(--ink-2);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 28px;
}

.hero h1 {
  font-size: clamp(42px, 6.5vw, 78px);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.03;
  color: var(--ink);
  margin-bottom: 28px;
  max-width: 820px;
}

.hero h1 .hl { color: var(--accent); }

.hero .sub {
  font-size: 18px;
  line-height: 1.72;
  color: var(--ink-2);
  max-width: 600px;
  margin-bottom: 44px;
}

/* CTA Buttons */
.btn-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 14px;
  font-weight: 600;
  padding: 12px 26px;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s,
              border-color 0.15s;
  white-space: nowrap;
  letter-spacing: 0.005em;
}

.btn-primary {
  background: var(--dark);
  color: #fff;
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(17,17,16,.2);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid var(--line);
}
.btn-ghost:hover {
  border-color: var(--ink-2);
  background: var(--surface);
}

/* Hero stats row */
.hero-stats {
  display: flex;
  gap: 56px;
  flex-wrap: wrap;
  margin-top: 72px;
  padding-top: 44px;
  border-top: 1px solid var(--line);
}

.hero-stats .stat .num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 38px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 5px;
}

.hero-stats .stat .lbl {
  font-size: 13px;
  color: var(--ink-3);
  letter-spacing: 0.02em;
}

/* ================================================================
   SECTIONS
   ================================================================ */
.section { padding: var(--sp) 0; }
.section-alt { background: var(--bg-alt); }
.section-dark { background: var(--dark); color: #fff; }

.eyebrow-h {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 20px;
}
.section-dark .eyebrow-h { color: var(--accent-h); }

h2 {
  font-size: clamp(30px, 4.2vw, 52px);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--ink);
  margin-bottom: 20px;
}

.section-dark h2 { color: #fff; }

.lead {
  font-size: 18px;
  line-height: 1.72;
  color: var(--ink-2);
  max-width: 640px;
}
.section-dark .lead { color: #9CA3AF; }

.center { text-align: center; }
.center h2   { margin-left: auto; margin-right: auto; }
.center .lead { margin-left: auto; margin-right: auto; }

/* ================================================================
   TRUST STRIP
   ================================================================ */
.trust-strip {
  padding: 44px 0;
  border-top: 1px solid var(--line);
  background: var(--bg);
}
.trust-strip p {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
  text-align: center;
  margin-bottom: 24px;
}

.trust {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 48px;
  justify-content: center;
  align-items: center;
}

.trust span {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-3);
  letter-spacing: 0.02em;
}

/* ================================================================
   FEATURE GRID — numbered + SVG icons, no emoji
   ================================================================ */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 64px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
}

.feature {
  background: var(--surface);
  padding: 36px 32px;
  transition: background 0.2s;
}
.feature:hover { background: var(--bg); }

.feature-num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 11px;
  font-weight: 700;
  color: var(--ink-3);
  letter-spacing: 0.14em;
  margin-bottom: 16px;
}

.feature .icon-svg {
  width: 28px;
  height: 28px;
  color: var(--accent);
  margin-bottom: 16px;
}

.feature h3 {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin-bottom: 10px;
  line-height: 1.3;
}

.feature p {
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--ink-2);
}

.feature ul {
  margin-top: 16px;
  padding: 0;
  list-style: none;
}

.feature ul li {
  font-size: 13px;
  color: var(--ink-3);
  padding: 3px 0 3px 18px;
  position: relative;
  line-height: 1.5;
}

.feature ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--line);
}

@media (max-width: 900px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px) {
  .feature-grid { grid-template-columns: 1fr; }
}

/* ================================================================
   STATS BAND — 4-column metric strip
   ================================================================ */
.stats-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
  background: var(--line);
  gap: 1px;
  margin-top: 72px;
}

.stats-band .s-item {
  padding: 32px 20px;
  text-align: center;
  background: var(--surface);
}

.stats-band .s-num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 36px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 6px;
}

.stats-band .s-lbl {
  font-size: 13px;
  color: var(--ink-3);
  line-height: 1.4;
}

@media (max-width: 640px) {
  .stats-band { grid-template-columns: repeat(2, 1fr); }
}

/* ================================================================
   SPLIT LAYOUT
   ================================================================ */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.split.reverse > :first-child { order: 2; }

.split-img {
  border-radius: var(--r);
  overflow: hidden;
  border: 1px solid var(--line);
}

@media (max-width: 860px) {
  .split { grid-template-columns: 1fr; gap: 40px; }
  .split.reverse > :first-child { order: 0; }
}

/* ================================================================
   API CODE BLOCK
   ================================================================ */
.api-block {
  background: var(--mono-bg);
  color: #E6EDF3;
  border-radius: 14px;
  padding: 36px 40px;
  font-family: 'JetBrains Mono', 'SF Mono', Menlo, Consolas, monospace;
  font-size: 13px;
  line-height: 1.85;
  overflow-x: auto;
  border: 1px solid #2D3748;
  white-space: pre;
}

.api-block .com { color: #6E7681; }
.api-block .kw  { color: #FF7B72; }
.api-block .str { color: #A5D6FF; }
.api-block .fn  { color: #D2A8FF; }

/* ================================================================
   DETAIL CARD (service page feature lists)
   ================================================================ */
.detail-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 32px;
}

.detail-card h4 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 22px;
}

.detail-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.detail-list li strong {
  display: block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 2px;
  letter-spacing: -0.005em;
}

.detail-list li span {
  font-size: 13px;
  color: var(--ink-3);
  line-height: 1.55;
}

/* ================================================================
   INFO BOX (customer benefit callout)
   ================================================================ */
.info-box {
  margin-top: 28px;
  padding: 18px 22px;
  background: var(--accent-bg);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--r) var(--r) 0;
}

.info-box .tag {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 5px;
}

.info-box p {
  font-size: 15px;
  color: var(--ink);
  line-height: 1.6;
}

/* ================================================================
   SERVICE PAGE — section headers
   ================================================================ */
.service-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 14px;
}

/* ================================================================
   CASE CARDS
   ================================================================ */
.case-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 24px;
  margin-top: 64px;
}

.case-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 40px;
}

.case-card .tag {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-bg);
  padding: 4px 10px;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 20px;
}

.case-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 12px;
}

.case-card .scenario {
  font-size: 14.5px;
  color: var(--ink-2);
  line-height: 1.65;
  margin-bottom: 24px;
}

.case-card .metrics {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  padding: 24px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin-bottom: 20px;
}

.case-card .metric .val {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 26px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
  line-height: 1;
}

.case-card .metric .desc {
  font-size: 12px;
  color: var(--ink-3);
  margin-top: 3px;
  line-height: 1.4;
}

/* ================================================================
   COMPARE TABLE
   ================================================================ */
.compare-wrap { overflow-x: auto; margin-top: 48px; }

.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
}

.compare-table th {
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--bg-alt);
  color: var(--ink-2);
  text-align: center;
}
.compare-table th:first-child { text-align: left; }
.compare-table th.hl-col { background: var(--dark); color: #fff; }

.compare-table td {
  padding: 12px 18px;
  border-bottom: 1px solid var(--line);
  color: var(--ink-2);
  text-align: center;
  vertical-align: middle;
}
.compare-table td:first-child { text-align: left; color: var(--ink); }
.compare-table td.hl-col { background: var(--accent-bg); font-weight: 700; color: var(--accent); }
.compare-table tr:last-child td { border-bottom: none; }

/* ================================================================
   CTA FINAL
   ================================================================ */
.section-cta-wrap {
  padding: var(--sp) 0;
  background: var(--bg-alt);
}

.cta-final {
  background: var(--dark);
  color: #fff;
  border-radius: 18px;
  padding: 88px 48px;
  text-align: center;
  max-width: var(--maxw);
  margin: 0 auto;
}

.cta-final h2 {
  color: #fff;
  max-width: 560px;
  margin: 0 auto 16px;
}

.cta-final p {
  color: #9CA3AF;
  max-width: 500px;
  margin: 0 auto 36px;
  font-size: 17px;
  line-height: 1.65;
}

.cta-final .btn-primary { background: #fff; color: var(--dark); }
.cta-final .btn-primary:hover { background: var(--accent); color: #fff; }
.cta-final .btn-ghost { color: #fff; border-color: rgba(255,255,255,.3); }
.cta-final .btn-ghost:hover { border-color: #fff; background: rgba(255,255,255,.1); }
.cta-final .btn-row { justify-content: center; }

/* ================================================================
   FOOTER
   ================================================================ */
.footer {
  background: var(--dark);
  color: #6B7280;
  padding: 80px 0 36px;
}

.footer a {
  color: #9CA3AF;
  font-size: 14px;
  transition: color 0.15s;
}
.footer a:hover { color: #fff; }

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 48px;
}

.footer h4 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 18px;
}

.footer ul { list-style: none; }
.footer li { padding: 5px 0; }
.footer .brand-block { font-size: 14px; line-height: 1.8; }

/* Logo keeps white box in dark footer */
.footer .brand-block .logo {
  display: inline-flex;
  align-items: center;
  margin-bottom: 18px;
  background: #fff;
  border-radius: 8px;
  padding: 6px 12px;
}
.footer .brand-block .logo img { height: 32px; width: auto; }

.footer-bottom {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid #1F2937;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 12px;
  color: #4B5563;
}

@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .cta-final { padding: 56px 24px; }
  .hero-stats { gap: 32px; }
  .hero { padding: 96px 0 72px; }
}

/* ================================================================
   CONTACT FORM
   ================================================================ */
.form-group { margin-bottom: 20px; }

.form-group label {
  display: block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 7px;
  letter-spacing: 0.01em;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 11px 14px;
  font-family: 'Noto Sans TC', sans-serif;
  font-size: 15px;
  color: var(--ink);
  transition: border-color 0.15s;
  outline: none;
  appearance: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-bg);
}

.form-group textarea { resize: vertical; min-height: 120px; }

/* ================================================================
   PROSE (privacy / security policy pages)
   ================================================================ */
.prose {
  max-width: 720px;
  margin: 0 auto;
  padding: 80px 28px;
  line-height: 1.75;
  color: var(--ink-2);
}

.prose h1 {
  font-size: clamp(28px, 4vw, 40px);
  color: var(--ink);
  margin-bottom: 12px;
}

.prose h2 {
  font-size: 20px;
  color: var(--ink);
  margin-top: 48px;
  margin-bottom: 10px;
}

.prose h3 {
  font-size: 17px;
  color: var(--ink);
  margin-top: 28px;
  margin-bottom: 8px;
}

.prose p  { margin-bottom: 16px; }
.prose ul { padding-left: 20px; margin-bottom: 16px; }
.prose li { margin-bottom: 6px; }

/* ================================================================
   ANIMATION
   ================================================================ */
@media (prefers-reduced-motion: no-preference) {
  .fade-in {
    opacity: 0;
    transform: translateY(14px);
    animation: fadeUp 0.7s ease forwards;
  }
  @keyframes fadeUp { to { opacity: 1; transform: none; } }
}

/* ================================================================
   FOCUS / A11Y
   ================================================================ */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ================================================================
   TL;DR QUICK ANSWER CARD
   ================================================================ */
.tldr {
  padding: 0 0 0;
  margin-top: -24px;
}

.tldr-card {
  background: var(--accent-bg);
  border: 1px solid rgba(14, 122, 107, 0.25);
  border-radius: var(--r);
  padding: 24px 32px;
  margin: 24px 0 0;
}

.tldr-eyebrow {
  display: inline-block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}

.tldr-card p {
  font-size: 15px;
  color: var(--ink);
  line-height: 1.6;
  margin-bottom: 12px;
  font-weight: 500;
}

.tldr-facts {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
}

.tldr-facts li {
  font-size: 13px;
  color: var(--ink-2);
  line-height: 1.5;
  padding-left: 16px;
  position: relative;
}

.tldr-facts li::before {
  content: "·";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

/* FAQ accordion */
.faq-list { list-style: none; padding: 0; margin: 0; }

.faq-item {
  border-bottom: 1px solid var(--line);
}

.faq-item:first-child { border-top: 1px solid var(--line); }

.faq-q {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  padding: 20px 0;
  cursor: pointer;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  line-height: 1.4;
}

.faq-q:hover { color: var(--accent); }

.faq-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  transition: transform 0.2s;
  margin-top: 2px;
}

.faq-item.open .faq-icon { transform: rotate(45deg); }

.faq-a {
  display: none;
  padding: 0 32px 20px 0;
  color: var(--ink-2);
  font-size: 15px;
  line-height: 1.7;
}

.faq-item.open .faq-a { display: block; }

.faq-category {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 48px 0 16px;
}

.faq-category:first-child { margin-top: 0; }

@media (max-width: 768px) {
  .tldr-card { padding: 18px 20px; }
  .tldr-facts { gap: 6px 16px; }
}