/* ============================================================
   PMC Studio — 官網樣式
   無框架、無 build step。單檔即可維護。
   ============================================================ */

:root {
  --ink: #0d1117;
  --ink-2: #1c2430;
  --muted: #5b6675;
  --line: #e3e8ee;
  --bg: #ffffff;
  --bg-soft: #f6f8fa;
  --accent: #06c755;
  --accent-dark: #059a43;
  --accent-soft: #e8f9ef;
  --radius: 12px;
  --radius-lg: 18px;
  --wrap: 1120px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans TC",
          "PingFang TC", "Microsoft JhengHei", "Helvetica Neue", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { line-height: 1.3; margin: 0 0 .5em; font-weight: 700; letter-spacing: -.01em; }
h1 { font-size: clamp(2rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }
a { color: inherit; text-decoration: none; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }

.skip-link {
  position: absolute; left: -9999px;
  background: var(--ink); color: #fff; padding: 10px 16px; border-radius: 0 0 var(--radius) 0;
}
.skip-link:focus { left: 0; top: 0; z-index: 100; }

/* ── 頁首 ───────────────────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.86);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }

.brand { display: flex; align-items: baseline; gap: 8px; }
.brand-mark { font-size: 1.15rem; font-weight: 800; letter-spacing: .08em; }
.brand-mark .dot { color: var(--accent); }
.brand-sub { font-size: .8rem; letter-spacing: .18em; color: var(--muted); text-transform: uppercase; }

.site-nav { display: flex; align-items: center; gap: 6px; }
.site-nav a {
  padding: 8px 14px; border-radius: 999px; font-size: .95rem; color: var(--muted);
  transition: color .15s, background .15s;
}
.site-nav a:hover { color: var(--ink); background: var(--bg-soft); }
.site-nav a[aria-current="page"] { color: var(--ink); font-weight: 600; }
.nav-cta {
  background: var(--accent); color: #fff !important; font-weight: 600;
  margin-left: 6px;
}
.nav-cta:hover { background: var(--accent-dark) !important; }

.nav-toggle, .nav-toggle-label { display: none; }

/* ── 主視覺 ─────────────────────────────────────── */
.hero { padding: clamp(72px, 12vw, 132px) 0 clamp(56px, 8vw, 88px); background: var(--bg-soft); border-bottom: 1px solid var(--line); }
.hero-eyebrow {
  display: inline-block; font-size: .78rem; letter-spacing: .22em; text-transform: uppercase;
  color: var(--accent-dark); background: var(--accent-soft); padding: 6px 14px; border-radius: 999px; margin-bottom: 22px;
}
.hero h1 { max-width: 16ch; }
.hero .lead { font-size: clamp(1rem, 2vw, 1.2rem); color: var(--muted); max-width: 52ch; margin-top: 18px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 26px; border-radius: 999px; font-weight: 600; font-size: .95rem;
  border: 1px solid transparent; transition: background .15s, border-color .15s, color .15s;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); }
.btn-ghost { border-color: var(--line); color: var(--ink); background: #fff; }
.btn-ghost:hover { border-color: var(--ink); }

/* ── 一般區塊 ───────────────────────────────────── */
.section { padding: clamp(64px, 9vw, 104px) 0; }
.section-soft { background: var(--bg-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { max-width: 62ch; margin-bottom: 48px; }
.section-head p { color: var(--muted); margin: 0; }

.grid { display: grid; gap: 22px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 30px 28px; display: flex; flex-direction: column;
  transition: border-color .18s, transform .18s;
}
.card:hover { border-color: #c9d3de; transform: translateY(-2px); }
.card h3 { margin-bottom: 10px; }
.card p { color: var(--muted); font-size: .95rem; margin-bottom: 18px; }
.card-index {
  font-size: .78rem; font-weight: 700; letter-spacing: .16em; color: var(--accent-dark);
  margin-bottom: 14px;
}

.feature-list { list-style: none; margin: 0 0 20px; padding: 0; }
.feature-list li { position: relative; padding-left: 24px; margin-bottom: 9px; font-size: .93rem; color: var(--ink-2); }
.feature-list li::before {
  content: ""; position: absolute; left: 4px; top: .62em;
  width: 7px; height: 7px; border-radius: 50%; background: var(--accent);
}

.card-link { margin-top: auto; font-size: .9rem; font-weight: 600; color: var(--accent-dark); }

/* ── 服務頁 ─────────────────────────────────────── */
.service-block {
  border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 34px 32px; margin-bottom: 20px; background: #fff;
}
.service-block h2 { font-size: 1.35rem; margin-bottom: 8px; }
.service-block .summary { color: var(--muted); margin-bottom: 22px; }
.service-block .feature-list li { font-size: .96rem; }

/* ── 關於頁 ─────────────────────────────────────── */
.value-grid { margin-top: 40px; }
.value-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 28px; }
.value-card h3 { font-size: 1.05rem; }
.value-card p { color: var(--muted); font-size: .94rem; margin: 0; }
.value-en { display: block; font-size: .78rem; letter-spacing: .16em; color: var(--accent-dark); margin-bottom: 8px; text-transform: uppercase; }

/* ── 聯絡頁 ─────────────────────────────────────── */
.contact-grid { align-items: start; }
.contact-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 30px; }
.contact-card h3 { margin-bottom: 14px; }
.contact-list { list-style: none; margin: 0; padding: 0; }
.contact-list li { padding: 12px 0; border-bottom: 1px solid var(--line); font-size: .95rem; }
.contact-list li:last-child { border-bottom: 0; }
.contact-list .label { display: block; font-size: .78rem; letter-spacing: .12em; color: var(--muted); text-transform: uppercase; margin-bottom: 2px; }

.notice {
  background: var(--accent-soft); border: 1px solid #bfe9d0; border-radius: var(--radius);
  padding: 16px 18px; font-size: .92rem; color: #0a5a2c;
}

/* ── 頁尾 ───────────────────────────────────────── */
.site-footer { background: var(--ink); color: #aab4c0; padding: 52px 0 34px; margin-top: 0; }
.footer-inner { display: grid; gap: 26px; }
.footer-brand .brand-mark { color: #fff; }
.footer-brand p { font-size: .85rem; letter-spacing: .06em; margin: 6px 0 0; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 22px; font-size: .92rem; }
.footer-nav a:hover { color: #fff; }
.copyright { font-size: .82rem; margin: 0; color: #6b7684; }

/* ── 響應式 ─────────────────────────────────────── */
@media (max-width: 860px) {
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }

  .nav-toggle-label {
    display: flex; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px;
  }
  .nav-toggle-label span { display: block; width: 22px; height: 2px; background: var(--ink); border-radius: 2px; }

  .site-nav {
    position: absolute; top: 68px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-bottom: 1px solid var(--line);
    padding: 8px 24px 20px;
    display: none;
  }
  .nav-toggle:checked ~ .site-nav { display: flex; }
  .site-nav a { padding: 13px 4px; border-bottom: 1px solid var(--line); border-radius: 0; }
  .nav-cta { margin: 14px 0 0; text-align: center; border-radius: 999px; }
}