/* Kun Dev Studio：白底、深墨字、一個沉穩的綠當重點色。系統字，不載外部字型（速度） */
:root {
  --bg: #ffffff;
  --bg-2: #f5f6f4;
  --ink: #16181d;
  --ink-2: #4a4f57;
  --muted: #6b7079;
  --line: #e2e4e0;
  --accent: #0d6b57;
  --accent-ink: #ffffff;
  --accent-soft: #e6f2ee;
  --radius: 10px;
  --radius-sm: 6px;
  --field-line: #8f948c;
  --wrap: 1120px;
  --font: system-ui, -apple-system, "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
}
* { box-sizing: border-box; }
html, body { overflow-x: clip; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.75 var(--font); }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-underline-offset: 3px; }
h1, h2, h3 { line-height: 1.35; letter-spacing: .01em; margin: 0 0 .6em; }
h1 { font-size: clamp(28px, 5vw, 44px); }
h2 { font-size: clamp(22px, 3.2vw, 30px); }
h3 { font-size: 19px; }
h3 a, h2 a { color: inherit; text-decoration: none; }
@media (hover: hover) and (pointer: fine) { h3 a:hover, h2 a:hover { color: var(--accent); } .btn:hover { filter: brightness(1.08); } }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
p { margin: 0 0 1em; }
h1, h2, h3 { text-wrap: balance; }
p, dd, li { text-wrap: pretty; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 12px; top: 12px; background: var(--ink); color: #fff; padding: 8px 12px; z-index: 10; }
.muted { color: var(--muted); font-size: 14px; }
.lead { font-size: clamp(17px, 2.2vw, 20px); color: var(--ink-2); max-width: 46em; }
.eyebrow { font-size: 13px; color: var(--muted); margin: 0 0 4px; }
.eyebrow a { color: inherit; }

/* 頁首 */
.top { position: sticky; top: 0; z-index: 5; background: rgba(255,255,255,.92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.top-in { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 60px; flex-wrap: wrap; }
.logo { display: inline-flex; align-items: center; gap: 8px; font-size: 17px; font-weight: 750; color: var(--ink); text-decoration: none; letter-spacing: .02em; }
.logo img { width: 24px; height: 24px; }
.nav { display: flex; align-items: center; gap: 4px 18px; flex-wrap: wrap; font-size: 15px; }
.nav a { color: var(--ink-2); text-decoration: none; }
.nav a[aria-current="page"] { color: var(--accent); font-weight: 600; }
.nav a.btn { color: var(--accent-ink); }

/* 按鈕 */
.btn { display: inline-block; background: var(--accent); color: var(--accent-ink); text-decoration: none; padding: 12px 22px; border-radius: 999px; font-weight: 600; border: 1px solid var(--accent); cursor: pointer; font: inherit; font-weight: 600; }

.btn-ghost { background: transparent; color: var(--accent); }
.btn-sm { padding: 6px 14px; font-size: 14px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }

/* 區塊 */
.sec { padding: 56px 0; border-bottom: 1px solid var(--line); }
.sec-hero { padding: 72px 0 56px; }
.sec-cta { background: var(--bg-2); border-bottom: 0; }
.cta { max-width: 640px; }
.grid2, .grid3 { display: grid; gap: 20px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 720px) { .grid2 { grid-template-columns: repeat(2, minmax(0, 1fr)); } .grid3 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1000px) { .grid3 { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.card { border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; background: #fff; min-width: 0; }
.card p:last-child { margin-bottom: 0; }
.poster { border-radius: var(--radius-sm); border: 1px solid var(--line); margin-bottom: 16px; }
.meta { display: flex; gap: 6px 16px; flex-wrap: wrap; font-size: 14px; color: var(--ink-2); }
.meta span:first-child { color: var(--accent); font-weight: 600; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tags span { font-size: 13px; background: var(--bg-2); border-radius: var(--radius-sm); padding: 2px 8px; color: var(--ink-2); }
.ticks { padding: 0; list-style: none; margin: 0; }
.ticks li { padding-left: 1.4em; position: relative; }
.ticks li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); }
.steps { list-style: none; padding: 0; margin: 0; counter-reset: s; display: grid; gap: 16px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 720px) { .steps { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.steps li { counter-increment: s; border-top: 2px solid var(--accent); padding-top: 12px; display: flex; flex-direction: column; gap: 4px; }
.steps li::before { content: counter(s, decimal-leading-zero); color: var(--muted); font-size: 13px; }
.steps.big span { color: var(--ink-2); }
.facts { display: flex; gap: 32px; margin: 8px 0 24px; flex-wrap: wrap; }
.facts dt { font-size: 13px; color: var(--muted); }
.facts dd { margin: 0; font-size: 20px; font-weight: 700; }

/* FAQ */
.faq { margin: 0; }
.faq > div { padding: 16px 0; border-bottom: 1px solid var(--line); }
.faq dt { font-weight: 700; margin-bottom: 4px; }
.faq dd { margin: 0; color: var(--ink-2); }

/* 表格 */
.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 15px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { font-size: 13px; color: var(--muted); font-weight: 600; }

/* 表單 */
.form { display: grid; gap: 16px; max-width: 560px; margin-top: 24px; }
.form label { display: grid; gap: 6px; font-weight: 600; font-size: 15px; }
.form input, .form textarea { font: inherit; font-weight: 400; padding: 10px 12px; border: 1px solid var(--field-line); border-radius: var(--radius); width: 100%; }
.form input:focus, .form textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.form-msg { min-height: 1.5em; margin: 0; }
.form-msg.err { color: #b42318; }
.form-msg.ok { color: var(--accent); font-weight: 600; }

/* 頁尾 */
.foot { padding: 40px 0; font-size: 14px; color: var(--ink-2); }
.foot-in { display: grid; gap: 16px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 720px) { .foot-in { grid-template-columns: 2fr 3fr 1fr; } }
.foot p { margin: 0; }
.foot nav { display: flex; flex-wrap: wrap; gap: 6px 16px; }
.foot nav a { color: var(--ink-2); }

/* 手機：頁首不黏住（選單會折兩行，黏著太佔畫面）；格子後面的「看全部」連結拉開距離 */
@media (max-width: 719px) {
  .top { position: static; }
  .top-in { position: relative; min-height: 56px; }
  .logo { line-height: 56px; }
  .nav { gap: 0 16px; padding-bottom: 4px; }
  .nav a { padding: 10px 0; }
  .nav a.btn { position: absolute; top: 10px; right: 20px; padding: 6px 14px; }
  .sec { padding: 40px 0; }
  .sec-hero { padding: 40px 0 48px; }
}
.grid2 + p, .grid3 + p { margin-top: 20px; }

/* 「怎麼合作」換淺底，打斷每區都一樣的白 */
.sec:has(.steps) { background: var(--bg-2); border-bottom: 0; }
/* 首屏：桌機左字右圖，手機圖在按鈕下面 */
.hero-shot { margin-top: 32px; }
.hero-shot img { border: 1px solid var(--line); border-radius: var(--radius); }
@media (min-width: 1000px) {
  .hero-split { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center; }
  .hero-shot { margin-top: 0; }
}
.example { margin-top: 8px; }
a.poster-link { display: block; }