/* ===========================================================
   傑克曼軟體設計 v2 — 共用樣式
   =========================================================== */

:root {
  --color-bg: #F6F4EE;
  --color-bg-card: #FBFAF6;
  --color-border: #DEDACC;
  --color-text: #1C1B22;
  --color-text-muted: #4A4840;
  --color-text-faint: #918D7E;
  --color-accent: #4338CA;
  --color-accent-ink: #F6F4EE;
  --color-dark: #1C1B22;
  --max-width: 1320px;
  --radius: 6px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: 'Noto Sans TC', -apple-system, BlinkMacSystemFont, 'PingFang TC', 'Microsoft JhengHei', system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

img { max-width: 100%; display: block; }

.mono {
  font-family: 'JetBrains Mono', 'Courier New', monospace;
}

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

/* ---------- Nav ---------- */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.site-nav__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-nav__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  white-space: nowrap;
}

.site-nav__logo .logo-mark {
  width: 38px;
  height: auto;
  flex-shrink: 0;
}

.site-nav__logo .zh {
  font-size: 26px;
  font-weight: 900;
  letter-spacing: 0.5px;
}

.site-nav__links {
  display: flex;
  align-items: center;
  gap: 30px;
}

.site-nav__links a:not(.btn) {
  white-space: nowrap;
  font-size: 16px;
  font-weight: 500;
  color: var(--color-text-muted);
}

.site-nav__links a:not(.btn):hover { color: var(--color-accent); }

.site-nav__links a.lang-switch {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 1px;
  padding: 4px 10px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
}
.site-nav__links a.lang-switch:hover { border-color: var(--color-accent); }

.site-nav__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.site-nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  margin: 5px 0;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-block;
  font-size: 16px;
  font-weight: 700;
  padding: 14px 28px;
  border-radius: var(--radius);
  border: 1px solid transparent;
}

.btn-solid {
  background: var(--color-dark);
  color: var(--color-bg);
}
.btn-solid:hover { opacity: 0.88; }

.btn-accent {
  background: var(--color-accent);
  color: #fff;
}
.btn-accent:hover { opacity: 0.88; }

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-text);
}
.btn-outline:hover { background: var(--color-text); color: var(--color-bg); }

.btn-sm { padding: 10px 20px; font-size: 15px; }

/* ---------- Sections ---------- */

section { padding: 72px 0; }

.section-head {
  max-width: 780px;
  margin-bottom: 44px;
}

.eyebrow {
  display: inline-block;
  font-size: 14px;
  letter-spacing: 2px;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 12px;
}

.eyebrow--brand {
  font-size: 18px;
  letter-spacing: 3px;
}

h1, h2, h3, h4 { font-weight: 900; margin: 0 0 14px; line-height: 1.3; }

h1 { font-size: 52px; }
h2 { font-size: 36px; }
h3 { font-size: 22px; }

p { margin: 0 0 16px; color: var(--color-text-muted); }

.lede { font-size: 20px; line-height: 1.85; color: var(--color-text-muted); }

.underline {
  border-bottom: 5px solid var(--color-accent);
}

/* ---------- Hero ---------- */

.hero {
  padding: 88px 0 76px;
  text-align: center;
}

.hero__inner {
  max-width: 920px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
}

.hero__inner h1 { text-align: center; }

.hero__actions {
  display: flex;
  gap: 14px;
  margin-top: 6px;
  flex-wrap: wrap;
  justify-content: center;
}

/* ---------- Stat bar ---------- */

.stat-bar {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 40px 0;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
  text-align: center;
}

.stat-grid .num { font-size: 40px; font-weight: 900; color: var(--color-accent); display: block; }
.stat-grid .label { font-size: 15px; color: var(--color-text-muted); }

/* ---------- Cards / grid ---------- */

.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }

.card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 30px 24px;
  background: var(--color-bg-card);
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color 0.15s ease;
}
.card:hover { border-color: var(--color-accent); }

.card .icon { color: var(--color-accent); }

.card .more { font-size: 15px; font-weight: 700; color: var(--color-accent); margin-top: auto; }

.tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.5px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(67, 56, 202, 0.1);
  color: var(--color-accent);
  width: fit-content;
}

.tag-muted {
  background: rgba(28, 27, 34, 0.06);
  color: var(--color-text-faint);
}

/* ---------- Quote ---------- */

.quote-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 48px;
  background: var(--color-bg-card);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.quote-card .mark { font-size: 46px; line-height: 1; color: var(--color-accent); font-weight: 900; }
.quote-card p.quote-text { font-size: 22px; line-height: 1.7; font-weight: 500; color: var(--color-text); }

.quote-attr { display: flex; align-items: center; gap: 12px; }
.quote-attr .avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--color-accent); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; flex-shrink: 0;
}
.quote-attr .name { font-size: 15px; font-weight: 700; }
.quote-attr .role { font-size: 13px; color: var(--color-text-muted); }

/* ---------- CTA banner ---------- */

.cta-banner {
  background: var(--color-dark);
  padding: 72px 0;
  text-align: center;
}
.cta-banner__inner {
  max-width: 760px; margin: 0 auto;
  display: flex; flex-direction: column; align-items: center; gap: 18px;
}
.cta-banner h2 { color: var(--color-bg); }
.cta-banner p { color: #B8B5A8; }

/* ---------- Case study block ---------- */

.case-block {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg-card);
  padding: 36px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.case-block h3 { margin-bottom: 6px; }
.case-block .placeholder { color: var(--color-text-faint); font-style: italic; }
.case-block dl { display: grid; grid-template-columns: auto 1fr; gap: 8px 14px; font-size: 16px; margin: 0; }
.case-block dt { font-weight: 700; color: var(--color-text-faint); }
.case-block dd { margin: 0; color: var(--color-text-muted); }

/* ---------- FAQ ---------- */

.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding: 22px 0;
}
.faq-item h3 { margin-bottom: 8px; font-size: 20px; }
.faq-item p { margin: 0; }

/* ---------- Footer ---------- */

.site-footer { padding: 60px 0 32px; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 40px;
}
.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-col .head {
  font-size: 14px; font-weight: 700; color: var(--color-text-faint); letter-spacing: 1px;
}
.footer-col a, .footer-col span { font-size: 15px; color: var(--color-text-muted); }
.footer-col a:hover { color: var(--color-accent); }
.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 22px;
  font-size: 14px;
  color: var(--color-text-faint);
}

/* ---------- Page header (for inner pages) ---------- */

.page-header { padding: 64px 0 40px; }
.page-header .eyebrow { margin-bottom: 10px; }
.page-header .lede { max-width: 820px; }

/* ---------- Breadcrumb ---------- */
.breadcrumb { font-size: 14px; color: var(--color-text-faint); margin-bottom: 18px; }
.breadcrumb a:hover { color: var(--color-accent); }

/* ---------- Blog: meta, article body, comments ---------- */

.post-meta { display: flex; gap: 16px; flex-wrap: wrap; font-size: 15px; color: var(--color-text-faint); margin-top: 6px; }
.card .post-meta { font-size: 14px; margin-top: 0; }

.article h2 { font-size: 28px; margin-top: 40px; }
.article h3 { font-size: 21px; margin-top: 28px; }
.article ul, .article ol { margin: 0 0 16px; padding-left: 24px; color: var(--color-text-muted); }
.article li { margin-bottom: 8px; }
.article .callout { border-left: 4px solid var(--color-accent); background: var(--color-bg-card); padding: 18px 22px; border-radius: 0 var(--radius) var(--radius) 0; }
.article .callout p:last-child { margin-bottom: 0; }
.article figure { margin: 8px 0 24px; }
.article figure img { width: 100%; height: auto; border-radius: var(--radius); border: 1px solid var(--color-border); }
.article figcaption { font-size: 14px; color: var(--color-text-faint); margin-top: 8px; line-height: 1.6; }
.article table { width: 100%; border-collapse: collapse; margin: 0 0 20px; font-size: 15px; }
.article th, .article td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--color-border); vertical-align: top; }
.article th { color: var(--color-text); background: var(--color-bg-card); }
.article td { color: var(--color-text-muted); }
.article code {
  font-family: 'JetBrains Mono', Consolas, monospace;
  font-size: 0.88em;
  color: var(--color-text);
  background: rgba(28, 27, 34, 0.06);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 1px 6px;
  word-break: break-all;
}

#blog-comments { border-top: 1px solid var(--color-border); margin-top: 48px; padding-top: 40px; }
#blog-comments h2 { margin-bottom: 4px; }
.comment-count { display: block; font-size: 15px; color: var(--color-text-faint); margin-bottom: 24px; }
.comment-empty { color: var(--color-text-faint); }
.comment-thread { border-bottom: 1px solid var(--color-border); padding: 18px 0; }
.comment { display: flex; flex-direction: column; gap: 6px; }
.comment--reply { margin: 14px 0 0 28px; padding: 14px 18px; background: var(--color-bg-card); border-radius: var(--radius); border: 1px solid var(--color-border); }
.comment--owner { border-color: var(--color-accent); background: rgba(67, 56, 202, 0.05); }
.comment-head { display: flex; gap: 12px; align-items: baseline; flex-wrap: wrap; }
.comment-name { font-weight: 700; color: var(--color-text); }
.comment--owner .comment-name { color: var(--color-accent); }
.comment-date { font-size: 14px; color: var(--color-text-faint); }
.comment-body { margin: 0; white-space: pre-wrap; word-break: break-word; color: var(--color-text); }
.comment-reply-btn { align-self: flex-start; background: none; border: none; padding: 4px 0; font: inherit; font-size: 15px; font-weight: 700; color: var(--color-accent); cursor: pointer; }
.comment-reply-btn:hover { text-decoration: underline; }
.comment-main-form { margin-top: 32px; }
.comment-reply-form { margin: 14px 0 0 28px; }
.comment-replying { font-size: 15px; font-weight: 700; color: var(--color-accent); margin-bottom: 10px; }
.comment-field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.comment-field label { font-size: 15px; font-weight: 700; }
.comment-field input, .comment-field textarea {
  font: inherit; font-size: 16px; padding: 12px 14px; border: 1px solid var(--color-border);
  border-radius: var(--radius); background: #fff; color: var(--color-text);
}
.comment-field input:focus, .comment-field textarea:focus { outline: 2px solid var(--color-accent); outline-offset: 1px; }
.comment-actions { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.comment-note { font-size: 14px; color: var(--color-text-faint); }
.comment-hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.comment-msg { display: none; padding: 20px 22px; border-radius: var(--radius); border: 2px solid; margin-bottom: 16px; outline: none; }
.comment-msg strong { display: block; font-size: 20px; font-weight: 900; margin-bottom: 4px; }
.comment-msg span { display: block; font-size: 16px; line-height: 1.7; }
.comment-msg.success { display: block; background: #ECFDF3; border-color: #16A34A; color: #14532D; }
.comment-msg.error { display: block; background: #FEF2F2; border-color: #DC2626; color: #7F1D1D; }

/* ---------- Floating LINE button ---------- */

.line-float {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #06C755;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 18px rgba(6, 199, 85, 0.35);
  z-index: 80;
  transition: transform 0.15s ease;
}
.line-float:hover { transform: scale(1.08); }
.line-float svg { width: 30px; height: 30px; }

/* ---------- Utilities ---------- */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.flow { display: flex; flex-direction: column; gap: 16px; }

/* ---------- Responsive ---------- */

@media (max-width: 1240px) {
  .site-nav__links { position: absolute; top: 100%; left: 0; right: 0; height: 100vh; background: var(--color-bg); flex-direction: column; align-items: flex-start; padding: 24px; gap: 20px; overflow-y: auto; display: none; }
  .site-nav__links.is-open { display: flex; }
  .site-nav__toggle { display: block; }
}

@media (max-width: 900px) {
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px 20px; }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .case-block { grid-template-columns: 1fr; }
  h1 { font-size: 40px; }
}

@media (max-width: 640px) {
  .site-nav__logo { gap: 9px; }
  .site-nav__logo .logo-mark { width: 30px; }
  .site-nav__logo .zh { font-size: 19px; }
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  section { padding: 52px 0; }
  .hero { padding: 56px 0 44px; }
  h1 { font-size: 30px; line-height: 1.5; }
  .underline { border-bottom-width: 3px; }
  body { font-size: 16px; }
  .lede { font-size: 17px; }
  h2 { font-size: 26px; }
  .quote-card, .case-block { padding: 26px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .cta-banner h2 { font-size: 26px; }
  .comment--reply, .comment-reply-form { margin-left: 12px; }
  .article h2 { font-size: 24px; }
  .line-float { width: 50px; height: 50px; right: 16px; bottom: 16px; }
  .line-float svg { width: 26px; height: 26px; }
}