/* 戀戀福爾摩沙線上馬拉松：全站共用樣式 */
:root{
  --ink:#1b2a29;--ink-2:#3d4f4d;--muted:#66706e;
  --sea:#0f6b6b;--sea-2:#2a9d8f;--sea-soft:#e3f0ed;
  --sun:#e9a23b;--sun-soft:#fbefd9;--sun-ink:#9a5d00;
  --bg:#f7f3ea;--surface:#ffffff;--line:#e4dccb;
  --shadow:0 1px 2px rgba(27,42,41,.04),0 8px 24px rgba(27,42,41,.06);
  --radius:16px;--max:1080px;--prose:720px;
}
@media (prefers-color-scheme:dark){
  :root{
    --ink:#e8eeec;--ink-2:#c3cfcc;--muted:#93a19e;
    --sea:#5cc4b5;--sea-2:#2a9d8f;--sea-soft:#183533;
    --sun:#f2b544;--sun-soft:#3a2f1c;--sun-ink:#f2b544;
    --bg:#111918;--surface:#18221f;--line:#2a3734;
    --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 24px rgba(0,0,0,.25);
  }
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang TC","Noto Sans TC","Microsoft JhengHei",sans-serif;color:var(--ink);background:var(--bg);line-height:1.8;-webkit-font-smoothing:antialiased}
a{color:var(--sea)}
img,svg{max-width:100%}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:60px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink);text-decoration:none;letter-spacing:.02em;white-space:nowrap}
.brand svg{width:30px;height:30px;flex:none}
.nav ul{display:flex;gap:4px;list-style:none;margin:0;padding:0}
.nav ul a{display:block;padding:6px 12px;border-radius:99px;color:var(--ink-2);text-decoration:none;font-size:.95rem}
.nav ul a:hover,.nav ul a[aria-current]{background:var(--sea-soft);color:var(--sea)}

/* ---------- hero (home) ---------- */
.hero{position:relative;overflow:hidden;background:linear-gradient(140deg,#0c5c5c 0%,#0f6b6b 45%,#2a9d8f 100%);color:#fff}
.hero .wrap{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;padding-top:88px;padding-bottom:96px}
.eyebrow{display:inline-block;font-size:.85rem;letter-spacing:.12em;padding:4px 12px;border:1px solid rgba(255,255,255,.35);border-radius:99px;opacity:.95}
.hero h1{font-size:clamp(2rem,5vw,3.2rem);line-height:1.25;margin:18px 0 14px;letter-spacing:.03em}
.hero p.lead{font-size:1.1rem;opacity:.92;margin:0 0 28px;max-width:34em}
.btns{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:99px;font-weight:600;text-decoration:none;transition:transform .15s ease,background .15s ease}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--sun);color:#1b2a29}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.3)}
.hero-art{position:relative}
.hero-art svg{display:block;width:100%;height:auto}
.route-path{stroke-dasharray:900;stroke-dashoffset:900;animation:draw 3.2s ease-out .3s forwards}
@keyframes draw{to{stroke-dashoffset:0}}
@media (prefers-reduced-motion:reduce){.route-path{animation:none;stroke-dashoffset:0}.btn,.post{transition:none}}
.hero-wave{position:absolute;left:0;right:0;bottom:-1px;width:100%;height:48px;display:block}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:-44px;position:relative;z-index:2}
.stat{background:var(--surface);border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow);border:1px solid var(--line)}
.stat b{display:block;font-size:1.6rem;color:var(--sea);line-height:1.2;font-variant-numeric:tabular-nums}
.stat span{font-size:.9rem;color:var(--muted)}

/* ---------- sections ---------- */
section{padding:80px 0 0}
.sec-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(1.5rem,3vw,2rem);margin:0;letter-spacing:.03em}
.sec-head p{margin:6px 0 0;color:var(--muted);max-width:40em}
.sec-head .more{font-weight:600;text-decoration:none;white-space:nowrap}
.kicker{font-size:.8rem;letter-spacing:.16em;color:var(--sea);font-weight:700}

/* ---------- how ---------- */
.how{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.how .item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.how .ico{width:44px;height:44px;border-radius:12px;background:var(--sea-soft);color:var(--sea);display:grid;place-items:center;margin-bottom:14px}
.how h3{margin:0 0 6px;font-size:1.1rem}
.how p{margin:0;color:var(--ink-2);font-size:.95rem}

/* ---------- routes ---------- */
.routes{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.route{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px 24px 20px;box-shadow:var(--shadow);display:flex;flex-direction:column}
.route .no{font-size:2.6rem;font-weight:800;line-height:1;color:var(--sea);opacity:.18;position:absolute;top:18px;right:22px;font-variant-numeric:tabular-nums}
.route h3{margin:0 0 4px;font-size:1.2rem;padding-right:60px}
.route .path{margin:0 0 14px;color:var(--ink-2);font-size:.95rem}
.route .path i{font-style:normal;color:var(--sun);padding:0 .25em}
.route dl{display:grid;grid-template-columns:auto 1fr;gap:4px 14px;margin:0 0 16px;font-size:.9rem}
.route dt{color:var(--muted)}
.route dd{margin:0}
.route .foot{margin-top:auto;display:flex;flex-wrap:wrap;gap:8px;padding-top:14px;border-top:1px dashed var(--line)}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:.78rem;padding:3px 10px;border-radius:99px;background:var(--sea-soft);color:var(--sea);font-weight:600}
.badge.wait{background:var(--sun-soft);color:var(--sun-ink)}
.badge.next{background:var(--sea);color:#fff}
.note{font-size:.85rem;color:var(--muted);margin-top:16px}

/* ---------- post cards ---------- */
.posts{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.post{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:transform .15s ease,box-shadow .15s ease}
.post:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.post .cover{aspect-ratio:16/9;display:grid;place-items:center;color:#fff}
.post .cover svg{width:56px;height:56px;opacity:.95}
.c1{background:linear-gradient(135deg,#1b2a29,#3d4f4d)}
.c2{background:linear-gradient(135deg,#0f6b6b,#2a9d8f)}
.c3{background:linear-gradient(135deg,#c9822a,#e9a23b)}
.post .body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.post .tag{font-size:.78rem;color:var(--sea);font-weight:700;letter-spacing:.06em}
.post h3{margin:4px 0 8px;font-size:1.08rem;line-height:1.5}
.post h3 a{color:inherit;text-decoration:none}
.post h3 a::after{content:"";position:absolute;inset:0}
.post h3 a:focus-visible{outline:none}
.post:focus-within{outline:2px solid var(--sea);outline-offset:2px}
.post p{margin:0 0 14px;color:var(--ink-2);font-size:.92rem}
.post .status{margin-top:auto;font-size:.82rem;color:var(--muted)}

/* ---------- about ---------- */
.about{display:grid;grid-template-columns:.9fr 1.1fr;gap:28px;align-items:start;background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:32px;box-shadow:var(--shadow)}
.about h2{margin:6px 0 12px;font-size:1.6rem}
.about p{margin:0 0 12px;color:var(--ink-2)}
.timeline{list-style:none;margin:0;padding:0;border-left:2px solid var(--line)}
.timeline li{position:relative;padding:0 0 18px 20px}
.timeline li::before{content:"";position:absolute;left:-7px;top:8px;width:12px;height:12px;border-radius:50%;background:var(--surface);border:2px solid var(--sea)}
.timeline li.now::before{background:var(--sun);border-color:var(--sun)}
.timeline b{display:block;font-size:.85rem;color:var(--sea)}
.timeline span{font-size:.95rem}

/* ---------- page head (文章列表 / 文章頁) ---------- */
.page-head{background:linear-gradient(140deg,#0c5c5c 0%,#0f6b6b 45%,#2a9d8f 100%);color:#fff;padding:56px 0 64px}
.page-head .inner{max-width:var(--prose);margin:0 auto;padding:0 20px}
.page-head h1{font-size:clamp(1.7rem,4.2vw,2.5rem);line-height:1.35;margin:12px 0 12px;letter-spacing:.02em}
.page-head .lead{font-size:1.08rem;opacity:.92;margin:0}
.crumbs{font-size:.85rem;opacity:.85}
.crumbs a{color:#fff;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.35)}
.crumbs span{padding:0 .4em}
.page-head .tag{display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.06em;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.3);border-radius:99px;padding:2px 12px;margin-top:18px}
.meta{display:flex;flex-wrap:wrap;gap:6px 18px;font-size:.88rem;opacity:.88;margin-top:18px}

/* ---------- article ---------- */
.article{max-width:var(--prose);margin:0 auto;padding:40px 20px 0}
.prose{font-size:1.06rem}
.prose>*:first-child{margin-top:0}
.prose h2{font-size:1.5rem;margin:2.2em 0 .6em;padding-bottom:.3em;border-bottom:2px solid var(--line);letter-spacing:.02em}
.prose h3{font-size:1.18rem;margin:1.8em 0 .5em;color:var(--sea)}
.prose p{margin:0 0 1.1em}
.prose ul,.prose ol{padding-left:1.4em;margin:0 0 1.2em}
.prose li{margin:.25em 0}
.prose blockquote{margin:1.4em 0;padding:4px 0 4px 18px;border-left:4px solid var(--sea-2);color:var(--ink-2)}
.prose figure{margin:1.8em 0}
.prose figure img{display:block;width:100%;height:auto;border-radius:12px}
.prose figcaption{font-size:.88rem;color:var(--muted);text-align:center;margin-top:8px}
.prose code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.9em;background:var(--sea-soft);padding:.1em .4em;border-radius:6px}
.prose hr{border:0;border-top:1px dashed var(--line);margin:2.4em 0}
.table-wrap{overflow-x:auto;margin:1.4em 0;border:1px solid var(--line);border-radius:12px;background:var(--surface)}
.prose table{border-collapse:collapse;width:100%;font-size:.95rem;font-variant-numeric:tabular-nums}
.prose th,.prose td{padding:10px 14px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}
.prose th{background:var(--sea-soft);color:var(--sea);font-weight:700}
.prose tr:last-child td{border-bottom:0}

/* 提示框：.callout（一般）、.callout.warn（注意）、.callout.draft（撰寫中） */
.callout{margin:1.6em 0;padding:16px 18px;border-radius:12px;background:var(--sea-soft);border:1px solid color-mix(in srgb,var(--sea) 25%,transparent)}
.callout>b:first-child{display:block;color:var(--sea);margin-bottom:4px}
.callout p:last-child{margin-bottom:0}
.callout.warn{background:var(--sun-soft);border-color:color-mix(in srgb,var(--sun) 40%,transparent)}
.callout.warn>b:first-child{color:var(--sun-ink)}
.callout.draft{background:var(--surface);border:1px dashed var(--line)}
.callout.draft>b:first-child{color:var(--muted)}

/* 未查證標記：<mark class="tbc">內容</mark> */
mark.tbc{background:none;color:inherit;border-bottom:2px dotted var(--sun)}
mark.tbc::after{content:"未查證";font-size:.68rem;font-weight:700;color:var(--sun-ink);background:var(--sun-soft);border-radius:4px;padding:0 4px;margin-left:4px;vertical-align:.25em}

/* 路線資訊卡 */
.route-box{margin:0 0 2em;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;box-shadow:var(--shadow)}
.route-box dl{display:grid;grid-template-columns:auto 1fr;gap:6px 18px;margin:0;font-size:.95rem}
.route-box dt{color:var(--muted)}
.route-box dd{margin:0}
.route-box .actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;padding-top:14px;border-top:1px dashed var(--line)}
.btn-line{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:99px;border:1px solid var(--sea);color:var(--sea);text-decoration:none;font-weight:600;font-size:.9rem}
.btn-line[aria-disabled="true"]{opacity:.45;pointer-events:none;border-style:dashed}

/* 文末：作者、上下篇 */
.author{display:flex;gap:14px;align-items:center;margin:48px 0 0;padding:20px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--line)}
.author .avatar{width:48px;height:48px;border-radius:50%;background:var(--sea);display:grid;place-items:center;flex:none}
.author .avatar svg{width:28px;height:28px}
.author p{margin:0;font-size:.92rem;color:var(--ink-2)}
.author b{color:var(--ink)}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:20px}
.pager a{display:block;padding:14px 18px;border:1px solid var(--line);border-radius:12px;text-decoration:none;color:var(--ink);background:var(--surface)}
.pager a:hover{border-color:var(--sea)}
.pager small{display:block;color:var(--muted);font-size:.8rem}
.pager .next{text-align:right;grid-column:2}

/* ---------- 文章列表 ---------- */
.list{max-width:var(--prose);margin:0 auto;padding:32px 20px 0;list-style:none}
.list li{border-bottom:1px solid var(--line)}
.list a{display:block;padding:22px 0;text-decoration:none;color:var(--ink)}
.list .tag{font-size:.78rem;color:var(--sea);font-weight:700;letter-spacing:.06em}
.list h2{font-size:1.25rem;margin:2px 0 6px;line-height:1.5}
.list a:hover h2{color:var(--sea)}
.list p{margin:0;color:var(--ink-2);font-size:.95rem}
.list .status{display:block;margin-top:6px;font-size:.82rem;color:var(--muted)}

/* ---------- footer ---------- */
footer{margin-top:88px;border-top:1px solid var(--line);padding:32px 0 40px;color:var(--muted);font-size:.88rem}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
footer a{color:var(--muted)}

/* ---------- responsive ---------- */
@media (max-width:880px){
  .hero .wrap{grid-template-columns:1fr;padding-top:56px;padding-bottom:84px}
  .hero-art{max-width:420px}
  .stats{grid-template-columns:repeat(2,1fr)}
  .how,.posts{grid-template-columns:1fr}
  .routes{grid-template-columns:1fr}
  .about{grid-template-columns:1fr;padding:24px}
}
@media (max-width:560px){
  .nav ul{gap:0}
  .nav ul a{padding:6px 8px;font-size:.88rem}
  .brand span{display:none}
  section{padding-top:64px}
  .pager{grid-template-columns:1fr}
  .pager .next{grid-column:1}
}