/* 服務介紹頁 */
:root { --bg: #f7f4ee; --ink: #23211d; --muted: #6f6a62; --line: #e4ded3; --pri: #2f4b3f; --gold: #a8875a; --card: #fffdf9;
  --serif: "Noto Serif TC", "Songti TC", Georgia, serif; --sans: -apple-system, BlinkMacSystemFont, "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", sans-serif; }
* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--ink); font: 16px/1.75 var(--sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; }
h1, h2, h3 { margin: 0; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 72px 24px 0; }
h2 { font: 500 30px/1.4 var(--serif); letter-spacing: .03em; }
.sub { color: var(--muted); margin: 8px 0 28px; }
.row { display: flex; gap: 12px; flex-wrap: wrap; }
.row.center { justify-content: center; }
.btn { display: inline-flex; align-items: center; padding: 13px 22px; border-radius: 999px; border: 1px solid var(--ink); text-decoration: none; font-weight: 600; font-size: 15px; }
.btn.pri { background: var(--pri); border-color: var(--pri); color: #fff; }

.nav { position: sticky; top: 0; z-index: 5; display: flex; justify-content: space-between; align-items: center; padding: 14px 24px; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(8px); }
.mark { font-weight: 700; letter-spacing: .16em; font-size: 14px; }
.mark i { font: italic 400 16px var(--serif); letter-spacing: .02em; color: var(--gold); }
.nav-cta { font-size: 14px; text-decoration: none; border-bottom: 1px solid var(--ink); }

.hero { max-width: 1080px; margin: 0 auto; padding: 56px 24px 24px; display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center; }
.eyebrow { color: var(--gold); letter-spacing: .2em; font-size: 13px; margin: 0 0 14px; }
.hero h1 { font: 500 clamp(28px, 4vw, 42px)/1.38 var(--serif); letter-spacing: .02em; text-wrap: balance; }
.hero h1 em { font-style: normal; color: var(--pri); border-bottom: 2px solid var(--gold); }
.lead { color: var(--muted); margin: 20px 0 28px; max-width: 34em; }

.hero-art { position: relative; height: 440px; }
.card { position: absolute; left: 0; top: 70px; width: 300px; height: 186px; border-radius: 10px; background: linear-gradient(135deg, #fbf8f2, #efe7da);
  box-shadow: 0 30px 60px -28px rgb(60 45 20 / .45), 0 0 0 1px rgb(0 0 0 / .04); padding: 22px 24px; display: flex; flex-direction: column; transform: rotate(-6deg); }
.card-brand { letter-spacing: .34em; font-size: 12px; color: var(--gold); font-weight: 600; }
.card-line { font: 500 17px/1.6 var(--serif); margin-top: 18px; }
.card-tap { margin-top: auto; display: flex; align-items: center; gap: 6px; font-size: 11px; color: var(--muted); }
.card-tap svg { width: 20px; height: 20px; fill: none; stroke: var(--gold); stroke-width: 1.6; stroke-linecap: round; }
.phone { position: absolute; right: 10px; top: 0; width: 210px; height: 430px; border-radius: 34px; background: #1d1c1a; padding: 9px; box-shadow: 0 40px 70px -30px rgb(0 0 0 / .5); }
.screen { height: 100%; border-radius: 26px; background: #f7f3ec; padding: 40px 18px; display: flex; flex-direction: column; align-items: center; gap: 10px; }
.s-brand { font-size: 9px; letter-spacing: .3em; color: var(--gold); }
.s-title { font: 500 17px var(--serif); margin-bottom: 8px; }
.s-btn { width: 100%; background: #9a7b4f; color: #fff; border-radius: 99px; font-size: 10px; padding: 9px 0; text-align: center; font-weight: 600; }
.s-row { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; width: 100%; }
.s-row b { height: 32px; background: #fffdf9; border: 1px solid #e6ddd0; border-radius: 8px; }
.s-acc { width: 100%; font: 12px var(--serif); border-bottom: 1px solid #e6ddd0; padding: 9px 2px; display: flex; justify-content: space-between; }

.band { background: var(--pri); color: #e9efe9; margin-top: 40px; }
.band .wrap { padding: 36px 24px; }
.three { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.three b { display: block; font: 500 19px var(--serif); color: #fff; margin-bottom: 6px; }
.three span { font-size: 14px; opacity: .85; }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.feat { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 20px; }
.feat h3 { font: 500 17px var(--serif); margin-bottom: 6px; }
.feat p { margin: 0; color: var(--muted); font-size: 14px; }

.demos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.demos a { display: block; text-decoration: none; padding: 22px; border-radius: 14px; border: 1px solid var(--line); background: var(--card); }
.demos b { display: block; font: 500 18px var(--serif); }
.demos span { color: var(--muted); font-size: 14px; }
.demos a::after { content: "打開 →"; display: block; margin-top: 10px; color: var(--pri); font-size: 13px; font-weight: 600; }

.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.plan { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 24px; }
.plan.hot { border: 2px solid var(--pri); }
.plan h3 { font: 500 18px var(--serif); }
.price { font-size: 34px; font-weight: 700; margin: 8px 0 0; font-variant-numeric: tabular-nums; }
.price small { font-size: 14px; font-weight: 400; color: var(--muted); }
.min { color: var(--muted); font-size: 13px; margin: 0 0 12px; }
.plan ul { margin: 0; padding-left: 18px; font-size: 14px; }
.plan li { margin: 4px 0; }
.fine { color: var(--muted); font-size: 13px; margin-top: 14px; }

.faq details { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; padding: 18px 0; font: 500 17px var(--serif); list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: " ＋"; color: var(--gold); }
.faq p { color: var(--muted); margin: 0 0 18px; }

.contact { margin-top: 80px; background: #ebe4d8; text-align: center; }
.contact .wrap { padding: 64px 24px; }
.contact p { color: var(--muted); max-width: 32em; margin: 12px auto 24px; }
.foot { text-align: center; color: var(--muted); font-size: 13px; padding: 28px; }

@media (max-width: 820px) {
  .hero { grid-template-columns: 1fr; padding-top: 28px; }
  .hero-art { height: 380px; max-width: 360px; width: 100%; margin: 0 auto; }
  .card { width: 230px; height: 150px; top: 120px; padding: 16px; }
  .card-line { font-size: 14px; margin-top: 10px; }
  .phone { width: 180px; height: 370px; right: 0; }
  .three, .grid, .demos, .plans { grid-template-columns: 1fr; }
  .wrap { padding: 56px 16px 0; }
  .hero, .nav { padding-left: 16px; padding-right: 16px; }
  h2 { font-size: 25px; }
}