/* 教學區共用樣式（guide/*.html）。色票與故事頁一致。 */
:root{--ink:#17324d;--ink-2:#36566f;--muted:#668196;--paper:#f6faff;--white:#fff;--line:#d6e5f0;--brand:#4389c5;--brand-dark:#28649b;--mint:#e4f4f7;--mint-ink:#276b82;--soft:#e8f1fb;--serif:Georgia,"Noto Serif TC","Songti TC",serif;--sans:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--paper);font-family:var(--sans);line-height:1.85;-webkit-font-smoothing:antialiased}a{color:inherit}
.wrap{width:min(1080px,calc(100% - 40px));margin:0 auto}.narrow{width:min(760px,calc(100% - 40px));margin:0 auto}
.topbar{background:var(--ink);color:#b8d2e3;font-size:13px;padding:9px 0}.topbar .wrap{display:flex;justify-content:space-between;gap:15px}.topbar a{color:#a8d9f4;text-decoration:none}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:10px 19px;border-radius:999px;text-decoration:none;font-weight:800;border:1px solid transparent}.btn-brand{color:#fff;background:var(--brand)}.btn-secondary{color:var(--ink);border-color:var(--line);background:#fff}
.hero{color:#fff;background:linear-gradient(135deg,#17324d,#24567d);padding:72px 0 60px}.eyebrow{color:#a8d9f4;font-size:12px;font-weight:800;letter-spacing:.22em;margin-bottom:18px}.hero h1{max-width:820px;margin:0 0 20px;font-family:var(--serif);font-size:clamp(2.2rem,5.5vw,4rem);line-height:1.2;letter-spacing:-.03em}.hero h1 em{font-style:normal;color:#a8d9f4}.hero .lead{max-width:720px;color:#d1e5f2;font-size:1.12rem}.hero .meta{margin-top:22px;color:#a9c5d8;font-size:14px}
.section{padding:64px 0}.section-head{max-width:720px;margin-bottom:28px}.section-head h2{margin:0 0 12px;font-family:var(--serif);font-size:clamp(1.7rem,3.6vw,2.6rem);line-height:1.25;letter-spacing:-.02em}.section-head p{color:var(--muted);font-size:1.05rem}.section .eyebrow{color:var(--brand-dark)}
.dark{background:var(--ink);color:#fff}.dark .section-head p{color:#b8d2e3}.dark .eyebrow{color:#a8d9f4}
/* 三個時間點 */
.phases{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.phase{position:relative;padding:22px 22px 20px;border:1px solid var(--line);border-radius:18px;background:#fff}.phase .idx{display:inline-block;margin-bottom:10px;padding:3px 10px;border-radius:999px;background:var(--soft);color:var(--brand-dark);font-size:.78rem;font-weight:900;letter-spacing:.1em}.phase h3{margin:0 0 6px;font-family:var(--serif);font-size:1.25rem}.phase p{margin:0;color:var(--ink-2);font-size:.95rem}.phase small{display:block;margin-top:10px;color:var(--muted);font-size:.82rem}.phase .soon-link{display:inline-block;margin-top:10px;color:var(--muted);font-size:.9rem}.phase a{display:inline-block;margin-top:12px;color:var(--brand-dark);font-weight:800;text-decoration:none}
/* 分組卡 */
.group{margin-top:40px}.group h3{margin:0 0 14px;font-family:var(--serif);font-size:1.4rem}.group h3 small{margin-left:10px;color:var(--muted);font-family:var(--sans);font-size:.85rem;font-weight:400}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.gcard{display:flex;flex-direction:column;gap:6px;padding:20px 20px 18px;border:1px solid var(--line);border-radius:18px;background:#fff;text-decoration:none;color:inherit;min-height:150px}
a.gcard:hover{border-color:var(--brand);box-shadow:0 10px 26px rgba(23,50,77,.08)}.gcard .fn{color:var(--muted);font-size:.78rem;letter-spacing:.06em}.gcard h4{margin:0;font-family:var(--serif);font-size:1.2rem;line-height:1.35}.gcard p{margin:0;color:var(--ink-2);font-size:.92rem}.gcard .foot{margin-top:auto;padding-top:10px;display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:.8rem}.gcard .go{color:var(--brand-dark);font-weight:800}
.gcard.soon{background:#f3f6f9;color:var(--muted);border-style:dashed}.gcard.soon h4{color:var(--ink-2)}.gcard.soon .badge{padding:2px 9px;border-radius:999px;background:#e4e9ee;color:#5b6b7a;font-size:.75rem;font-weight:800}
/* 章節頁 */
.toc{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 10px}.toc a{padding:6px 12px;border-radius:999px;border:1px solid var(--line);background:#fff;text-decoration:none;color:var(--ink-2);font-size:.88rem}.toc a:hover{border-color:var(--brand);color:var(--brand-dark)}
.story{font-size:1.08rem}.story p{margin:0 0 16px}
.scene{margin:0 0 30px;padding:20px 24px;border-left:4px solid var(--brand);border-radius:0 14px 14px 0;background:var(--soft);color:var(--ink-2)}.scene b{color:var(--ink)}
.chapter h2{margin:56px 0 8px;font-family:var(--serif);font-size:clamp(1.6rem,3.4vw,2.3rem);line-height:1.25}.chapter h2 .when{display:block;margin-bottom:6px;color:var(--brand-dark);font-family:var(--sans);font-size:.8rem;font-weight:900;letter-spacing:.14em}.chapter .why{color:var(--muted);margin:0 0 22px}
.steps{list-style:none;margin:0;padding:0;counter-reset:step}.step{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:24px;align-items:start;padding:22px 0;border-top:1px solid var(--line)}.step .txt{grid-column:1;grid-row:1/span 4}.step .shot{grid-column:2}.step .shot+.shot{margin-top:18px}.step:last-child{border-bottom:1px solid var(--line)}.step .txt{counter-increment:step}.step .txt::before{content:counter(step);display:inline-grid;place-items:center;width:30px;height:30px;margin:0 10px 8px 0;border-radius:50%;background:var(--brand);color:#fff;font-weight:900;font-size:.9rem;vertical-align:middle}.step h3{display:inline;margin:0;font-size:1.12rem;vertical-align:middle}.step p{margin:8px 0 0;color:var(--ink-2)}.step .tip{margin-top:10px;padding:10px 14px;border-radius:10px;background:var(--mint);color:var(--mint-ink);font-size:.92rem}
.shot{margin:0}.shot img{display:block;width:100%;height:auto;border-radius:18px;border:1px solid var(--line);background:#fff}.shot figcaption{margin-top:8px;color:var(--muted);font-size:.82rem;line-height:1.5}
.shot.pending .box{display:grid;place-items:center;aspect-ratio:9/16;max-height:420px;border:2px dashed #b9cbda;border-radius:18px;background:#f3f7fb;color:#6f8498;text-align:center;font-size:.9rem;padding:16px}.shot.pending .box b{display:block;color:var(--brand-dark);margin-bottom:4px}
.talk{margin:14px 0;padding:14px 18px;border-radius:18px;background:#fff;border:1px solid var(--line);font-size:1rem}.talk .who{display:block;margin-bottom:4px;color:var(--muted);font-size:.8rem}
.note-box{margin:26px 0;padding:22px 26px;border-radius:18px;background:#fff;border:1px solid var(--line)}.note-box h3{margin:0 0 10px;font-size:1.05rem}.note-box ul{margin:0;padding-left:20px;color:var(--ink-2)}.note-box li{margin:4px 0}
.table-wrap{overflow-x:auto;margin:14px 0}.compare{width:100%;min-width:520px;border-collapse:collapse;background:#fff}.compare th,.compare td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--line);vertical-align:top;font-size:.95rem}.compare th{color:var(--brand-dark);font-size:.8rem;letter-spacing:.12em}.compare td{color:var(--ink-2)}.compare td strong{color:var(--ink)}
.faq details{padding:14px 0;border-bottom:1px solid var(--line)}.faq summary{cursor:pointer;font-weight:800;list-style:none}.faq summary::-webkit-details-marker{display:none}.faq summary::before{content:"＋";display:inline-block;width:22px;color:var(--brand-dark)}.faq details[open] summary::before{content:"－"}.faq p{margin:8px 0 0 22px;color:var(--ink-2)}
.in-use{margin:44px 0 0;padding:22px 26px;border-radius:18px;background:var(--soft)}.in-use h2{margin:0 0 4px;font-family:var(--serif);font-size:1.3rem}.in-use ul{list-style:none;margin:0;padding:0}.in-use li{padding:12px 0;border-top:1px solid rgba(23,50,77,.1)}.in-use li:first-child{border-top:0}.in-use a{color:var(--brand-dark);font-weight:800;text-decoration:none}.in-use a:hover{text-decoration:underline}.in-use span{display:block;margin-top:3px;color:var(--ink-2);font-size:.92rem}
.pager{display:flex;justify-content:space-between;gap:12px;margin-top:48px;padding-top:22px;border-top:1px solid var(--line)}.pager a{text-decoration:none;color:var(--brand-dark);font-weight:800}.pager span{color:var(--muted)}
.cta{padding:64px 0;color:#fff;background:linear-gradient(135deg,#24567d,#17324d);text-align:center}.cta h2{margin:0 0 14px;font-family:var(--serif);font-size:clamp(1.8rem,3.6vw,2.8rem)}.cta p{max-width:650px;margin:0 auto 24px;color:#c9dfed}
.footer{padding:30px 0;color:var(--muted);font-size:13px;text-align:center}.fineprint{margin-top:18px;color:var(--muted);font-size:.86rem}
.updated{color:var(--muted);font-size:.85rem}
@media(max-width:900px){.phases,.cards{grid-template-columns:1fr 1fr}}
@media(max-width:680px){.phases,.cards{grid-template-columns:1fr}.step{grid-template-columns:1fr}.step .txt{grid-row:auto}.step .shot{grid-column:1;max-width:320px}.hero{padding:52px 0 44px}.section{padding:48px 0}.topbar .wrap{display:block}}

.chapter ul.plain{margin:12px 0 0;padding-left:1.2em;color:var(--ink-2)}.chapter ul.plain li{margin:6px 0}