:root {
    color-scheme: light;
    /* CrewOn 紙感手繪系統：暖紙底、深墨綠 ink、薄荷與亮橘 */
    --paper: #f5f4ef;
    --paper-deep: #ebece6;
    --paper-light: #fffdf7;
    --surface: #fffdf7;
    --ink: #12323b;
    --ink-panel: #173944;
    --ink-cream: #f8f3e8;
    --muted: #587077;
    --ink-faint: #91a09f;
    --line: #d2d8d4;
    --line-strong: #a4b0ac;
    --mint: #93e4bf;
    --mint-deep: #137d64;
    --mint-soft: #dcf7eb;
    --orange: #ff7a32;
    --orange-deep: #bc4d18;
    --orange-pale: #ffe6d6;
    --blue-pale: #dcecf4;
    --danger: #c84e4e;
    --danger-pale: #f9dede;
    --note-yellow: #fff3b8;
    --shadow-ink: 0 8px 24px #12323b13;
    --shadow-press: 3px 3px 0 var(--ink);
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-wobble: 13px 9px 14px 10px;
    --display: "Noto Serif TC", "Songti TC", serif;
    --body: "Noto Sans TC", "PingFang TC", sans-serif;
    --mono: "IBM Plex Mono", ui-monospace, monospace;
    --page: min(1440px, 100%);
    --text-base: 16px;
    --text-small: 14px;
    --text-micro: 11px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--paper); }
body {
    margin: 0;
    color: var(--ink);
    background-color: var(--paper);
    background-image: radial-gradient(circle at 18% 8%, #12323b09 0 1px, transparent 1.4px);
    background-size: 28px 28px;
    font: 400 var(--text-base)/1.65 var(--body);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizelegibility;
}
button, input, select, textarea { color: inherit; font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }
img { max-width: 100%; }
[hidden] { display: none !important; }
::selection { background: var(--mint); color: var(--ink); }
:focus-visible { outline: 3px solid var(--mint-deep); outline-offset: 3px; }
.brand-lockup { min-width: 44px; min-height: 44px; display: inline-flex; gap: 13px; align-items: center; color: inherit; text-decoration: none; font: 800 15px/1.05 var(--display); letter-spacing: -.01em; }
.brand-lockup small { display: block; margin-top: 5px; color: var(--muted); font: 600 var(--text-micro)/1 var(--mono); letter-spacing: .1em; }
.brand-symbol { position: relative; display: grid; place-items: center; width: 40px; height: 40px; overflow: hidden; color: var(--ink); background: var(--mint); border: 2px solid var(--ink); border-radius: var(--radius-wobble); rotate: -2deg; box-shadow: 2px 2px 0 var(--ink); }
.brand-symbol::before, .brand-symbol::after, .brand-symbol i { content: ""; position: absolute; border: 2px dotted var(--ink); border-radius: 50%; }
.brand-symbol::before { width: 22px; height: 22px; }
.brand-symbol::after { width: 13px; height: 13px; border-color: var(--orange); border-style: solid; }
.brand-symbol i { width: 30px; height: 30px; border-color: #12323b55; }
.button { min-height: 48px; padding: 13px 18px; display: inline-flex; justify-content: space-between; align-items: center; gap: 28px; border: 1.5px solid var(--ink); border-radius: var(--radius-sm); background: var(--paper-light); text-decoration: none; cursor: pointer; font: 800 15px/1.25 var(--body); transition: transform .12s ease, box-shadow .12s ease, background .12s ease, color .12s ease; }
.button:hover { transform: translate(-1px, -2px); box-shadow: var(--shadow-press); }
.button:active { transform: translate(0, 0); box-shadow: 1px 1px 0 var(--ink); }
.button-dark { color: var(--ink-cream); background: var(--ink-panel); }
.button-light { background: var(--paper-light); }
.button-mint { color: var(--ink); background: var(--mint); box-shadow: 0 5px 14px #137d6429; }
.button-orange { color: #fff; background: var(--orange); box-shadow: 0 5px 14px #bc4d1833; }
.button-small { min-height: 44px; padding: 9px 14px; font-size: var(--text-small); }
.eyebrow, .fine-label { margin: 0; color: var(--muted); font: 700 var(--text-micro)/1.45 var(--mono); letter-spacing: .11em; text-transform: uppercase; }
.eyebrow.light { color: #88aaa9; }
.grid-field { background-image: radial-gradient(circle, #12323b12 0 1.2px, transparent 1.6px); background-size: 30px 30px; }
.section-shell { width: min(100%, 1440px); margin-inline: auto; padding: 104px clamp(24px, 6vw, 88px); }
.section-heading { max-width: 850px; margin-bottom: 56px; }
.section-heading.compact { margin-bottom: 40px; }
.section-heading h2 { position: relative; width: fit-content; margin: 18px 0; font: 800 clamp(34px, 4.6vw, 58px)/1.18 var(--display); letter-spacing: -.03em; }
.section-heading h2::after { content: ""; position: absolute; z-index: -1; left: 5px; right: -5px; bottom: 2px; height: 9px; background: var(--mint); border-radius: 50%; opacity: .72; rotate: -1deg; }
.section-heading > p:last-child { max-width: 620px; color: var(--muted); font-size: 16px; line-height: 1.75; }
.form-status { min-height: 22px; margin: 0; color: var(--muted); font-size: var(--text-small); line-height: 1.55; }
.form-status.error { color: var(--danger); }
.honeypot { position: absolute !important; left: -9999px !important; width: 1px !important; height: 1px !important; overflow: hidden !important; }
@media (max-width: 720px) {
    .section-shell { padding: 74px 20px; }
    .section-heading { margin-bottom: 34px; }
    .section-heading h2 { font-size: clamp(30px, 8.5vw, 44px); }
    .button { min-height: 48px; }
    .grid-field { background-size: 24px 24px; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; transition: none !important; }
}