/* ─────────────────────────────────────────────
   彩虹樹 網站樣式
   顏色都定義在 :root，要調整色調改這裡就好
   ───────────────────────────────────────────── */
:root{
  color-scheme:light;
  --paper:#FBF0E8;      /* 主要底色 */
  --paper-2:#F4E5D8;    /* 交錯區塊 */
  --paper-3:#FFFFFF;    /* 小區塊、輸入框 */
  --ink:#3A322B;        /* 主要文字 */
  --bark:#6B5948;       /* 次要文字 */
  --line:#E0CDBC;       /* 分隔線 */
  --gold:#A9762F;       /* 標誌字樣的金棕色 */
  /* 彩虹六色（加深過，白字疊在上面也讀得清楚） */
  --c-red:#C23B30;
  --c-orange:#B9561F;
  --c-yellow:#93700F;
  --c-green:#4C8541;
  --c-blue:#2F72A6;
  --c-indigo:#4D4A91;
  --serif:"Noto Serif TC","Songti TC",PMingLiU,"新細明體",serif;
  --sans:"Noto Sans TC","PingFang TC","Microsoft JhengHei","微軟正黑體",sans-serif;
  --wrap:min(1120px,calc(100% - 2.5rem));
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:5rem}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--sans);font-size:17px;line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;line-height:1.4;margin:0}
p{margin:0 0 1.1em}
:focus-visible{outline:2.5px solid var(--gold);outline-offset:3px;border-radius:4px}
.wrap{width:var(--wrap);margin-inline:auto}
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:.5rem 1rem;z-index:100}
.skip:focus{left:1rem;top:1rem}

/* ── 頁首 ── */
.top{
  position:sticky;top:0;z-index:50;
  background:color-mix(in srgb,var(--paper) 92%,transparent);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.top .wrap{display:flex;align-items:center;gap:1.25rem;min-height:4.25rem}
.brand{display:flex;align-items:center;gap:.6rem;text-decoration:none;flex-shrink:0}
.brand img{width:46px}
.brand b{font-family:var(--serif);font-size:1.12rem;letter-spacing:.06em;font-weight:600;display:block;line-height:1.3}
.brand small{display:block;font-size:.68rem;color:var(--bark);letter-spacing:.14em;line-height:1.3}
.nav{margin-left:auto;display:flex;gap:1.4rem;align-items:center}
.nav a{text-decoration:none;font-size:.94rem;color:var(--bark);padding:.2rem 0;border-bottom:2px solid transparent}
.nav a:hover,.nav a[aria-current="page"]{color:var(--ink);border-bottom-color:var(--gold)}
.nav .book{
  background:var(--gold);color:#fff;padding:.5rem 1.1rem;border-radius:999px;border-bottom:none;
}
.nav .book:hover{color:#fff;filter:brightness(1.08)}
.burger{display:none;margin-left:auto;background:none;border:1px solid var(--line);border-radius:10px;padding:.45rem .8rem;color:var(--ink);font:inherit;font-size:.92rem;cursor:pointer}
@media (max-width:860px){
  .nav{position:fixed;inset:4.25rem 0 auto;flex-direction:column;align-items:stretch;gap:0;
       background:var(--paper);border-bottom:1px solid var(--line);padding:.5rem 1.25rem 1.25rem;display:none}
  .nav.open{display:flex}
  .nav a{padding:.75rem 0;border-bottom:1px solid var(--line)}
  .nav .book{text-align:center;margin-top:.9rem;border:none}
  .burger{display:block}
}

/* ── 首頁主視覺 ── */
.hero{text-align:center;padding:4.5rem 0 3.5rem}
.hero-mark{width:min(430px,78%);margin:0 auto 1.6rem;animation:rise .9s cubic-bezier(.2,.7,.3,1) both}
.hero h1{font-size:clamp(2.5rem,9vw,3.9rem);letter-spacing:.16em;text-indent:.16em;margin-bottom:.35rem;animation:rise .9s .15s cubic-bezier(.2,.7,.3,1) both}
.hero .sub{font-size:clamp(1rem,3vw,1.2rem);color:var(--bark);letter-spacing:.3em;text-indent:.3em;margin-bottom:1.5rem;animation:rise .9s .25s cubic-bezier(.2,.7,.3,1) both}
.motto{
  font-family:var(--serif);font-size:clamp(1.05rem,3.4vw,1.35rem);color:var(--gold);
  letter-spacing:.42em;text-indent:.42em;margin-bottom:2.2rem;
  animation:rise .9s .35s cubic-bezier(.2,.7,.3,1) both;
}
.entry{display:flex;gap:.9rem;justify-content:center;flex-wrap:wrap;animation:rise .9s .45s cubic-bezier(.2,.7,.3,1) both}
.entry a{
  text-decoration:none;padding:.72rem 1.7rem;border-radius:999px;font-size:1rem;
  border:1.5px solid currentColor;background:var(--paper-3);
}
.entry a.ot{color:var(--c-green)}
.entry a.cs{color:var(--c-blue)}
.entry a:hover{background:currentColor}
.entry a:hover span{color:var(--paper-3)}
@keyframes rise{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){*{animation:none !important;transition:none !important}html{scroll-behavior:auto}}

/* ── 區段共用 ── */
.sec{padding:4.5rem 0}
.band{background:var(--paper-2)}
.head{margin-bottom:2.6rem;max-width:44rem}
.head h1,.head h2{font-size:clamp(1.6rem,5vw,2.15rem);letter-spacing:.1em;margin-bottom:.6rem}
.head p{color:var(--bark);max-width:40rem}
.head p:last-child{margin-bottom:0}
.rule{width:64px;height:5px;border-radius:3px;margin-bottom:1.3rem;
  background:linear-gradient(90deg,var(--c-red),var(--c-orange),var(--c-yellow),var(--c-green),var(--c-blue),var(--c-indigo))}

/* 理念 */
.values{display:grid;grid-template-columns:repeat(3,1fr);gap:2.5rem}
.values div{border-top:4px solid var(--hue,var(--gold));padding-top:1.1rem}
.values h3{font-size:1.25rem;letter-spacing:.2em;margin-bottom:.5rem}
.values p{font-size:.96rem;color:var(--bark);margin:0}
@media (max-width:760px){.values{grid-template-columns:1fr;gap:1.9rem}}

/* 服務 */
.svc{display:grid;grid-template-columns:1fr 1fr;gap:3.2rem}
@media (max-width:820px){.svc{grid-template-columns:1fr;gap:2.6rem}}
.svc > div{border-left:4px solid var(--hue);padding-left:1.6rem}
.svc h3{font-size:1.45rem;letter-spacing:.14em;margin-bottom:.3rem}
.svc .who{font-size:.86rem;color:var(--bark);letter-spacing:.1em;margin-bottom:1.1rem}
.svc ul{list-style:none;margin:0;padding:0}
.svc li{padding:.7rem 0;border-bottom:1px dashed var(--line);font-size:.97rem}
.svc li b{font-weight:500;display:block}
.svc li span{color:var(--bark);font-size:.88rem}

/* 團隊 */
.member{display:grid;grid-template-columns:9.5rem 1fr;gap:1.8rem;padding:1.7rem 0;border-top:1px solid var(--line);align-items:start}
.member:last-child{border-bottom:1px solid var(--line)}
.member.has-photo{grid-template-columns:6.5rem 9.5rem 1fr}
.member .photo{width:6.5rem;aspect-ratio:1;border-radius:50%;object-fit:cover;background:var(--paper-3)}
.member .role{font-family:var(--serif);font-size:.95rem;color:var(--bark);letter-spacing:.1em}
.member .name{font-family:var(--serif);font-size:1.2rem;margin-bottom:.35rem}
.member p{font-size:.95rem;color:var(--bark);margin:0}
.member .lic{font-size:.82rem;color:var(--bark);margin-top:.4rem}
@media (max-width:700px){
  .member,.member.has-photo{grid-template-columns:1fr;gap:.5rem}
  .member .photo{width:5.5rem}
}

/* ── 文章列表 ── */
.tools{display:flex;flex-wrap:wrap;gap:.85rem;align-items:center;margin-bottom:1.8rem}
.chips{display:flex;flex-wrap:wrap;gap:.5rem}
.chip{
  font:inherit;font-size:.88rem;cursor:pointer;padding:.38rem .95rem;border-radius:999px;
  border:1.5px solid var(--line);background:transparent;color:var(--bark);
}
.chip:hover{border-color:var(--hue,var(--ink));color:var(--hue,var(--ink))}
.chip[aria-pressed="true"]{background:var(--hue,var(--ink));border-color:transparent;color:#fff}
.search{flex:1;min-width:210px;display:flex;align-items:center;gap:.5rem;
  border:1.5px solid var(--line);border-radius:999px;padding:.38rem 1rem;background:var(--paper-3)}
.search:focus-within{border-color:var(--gold)}
.search input{flex:1;border:none;background:none;font:inherit;font-size:.92rem;color:var(--ink);outline:none;min-width:0}
.search svg{flex-shrink:0;opacity:.5}
.count{font-size:.84rem;color:var(--bark);margin-bottom:1rem;min-height:1.5em}
.post{display:grid;grid-template-columns:1fr;gap:1.4rem;text-decoration:none;padding:1.45rem 0;border-top:1px solid var(--line)}
.post.has-cover{grid-template-columns:1fr 168px}
.posts .post:last-child{border-bottom:1px solid var(--line)}
.post[hidden]{display:none}
.post .meta{display:flex;flex-wrap:wrap;gap:.8rem;align-items:center;font-size:.8rem;color:var(--bark);margin-bottom:.45rem}
.tag{display:inline-block;padding:.1rem .62rem;border-radius:999px;color:#fff;font-size:.76rem;background:var(--hue,var(--bark));text-decoration:none;line-height:1.7}
.post h2,.post h3{font-size:1.16rem;margin-bottom:.4rem;transition:color .15s}
.post:hover h2,.post:hover h3{color:var(--gold)}
.post p{font-size:.94rem;color:var(--bark);margin:0;max-width:62ch}
.post .cover{width:168px;aspect-ratio:4/3;object-fit:cover;border-radius:10px}
@media (max-width:600px){.post.has-cover{grid-template-columns:1fr 96px}.post .cover{width:96px}}
.empty{padding:3rem 0;text-align:center;color:var(--bark);font-size:.95rem}
.more{margin-top:2rem}
.btn{
  display:inline-block;text-decoration:none;padding:.65rem 1.5rem;border-radius:999px;
  border:1.5px solid var(--gold);color:var(--gold);font-size:.95rem;background:var(--paper-3);
}
.btn:hover{background:var(--gold);color:#fff}

/* 橫幅 */
.strip{background:#FBF0E8;border-block:1px solid var(--line)}
.strip img{width:100%}

/* ── 聯絡 ── */
.contact{display:grid;grid-template-columns:1.1fr 1fr;gap:3.2rem}
@media (max-width:820px){.contact{grid-template-columns:1fr;gap:2.4rem}}
.info dt{font-family:var(--serif);font-size:.9rem;color:var(--bark);letter-spacing:.12em;margin-top:1.3rem}
.info dt:first-of-type{margin-top:0}
.info dd{margin:.25rem 0 0;font-size:1.02rem}
.info dd a{color:var(--gold)}
.info dd p{margin:0}
.hours{border:1px solid var(--line);border-radius:14px;background:var(--paper-3);padding:1.5rem 1.7rem}
.hours h3{font-size:1.1rem;letter-spacing:.12em;margin-bottom:1rem}
.hours table{width:100%;border-collapse:collapse;font-size:.95rem}
.hours td{padding:.52rem 0;border-bottom:1px dashed var(--line)}
.hours td:last-child{text-align:right;color:var(--bark)}
.hours tr:last-child td{border-bottom:none}
.note{margin-top:1.2rem;font-size:.86rem;color:var(--bark);line-height:1.75}
.note p{margin:0 0 .6em}

/* ── 文章內頁 ── */
.article{padding:3.2rem 0 4.5rem}
.article .wrap{max-width:46rem}
.back{display:inline-block;font-size:.88rem;color:var(--bark);text-decoration:none;margin-bottom:1.8rem}
.back:hover{color:var(--gold)}
.article h1{font-size:clamp(1.65rem,5.4vw,2.35rem);letter-spacing:.04em;line-height:1.45;margin-bottom:1rem}
.article .byline{display:flex;flex-wrap:wrap;gap:.9rem;align-items:center;font-size:.86rem;color:var(--bark);padding-bottom:1.6rem;border-bottom:1px solid var(--line);margin-bottom:2.2rem}
.article .lead{font-size:1.05rem;color:var(--bark);margin-bottom:2rem}
.article .lead-cover{width:100%;border-radius:14px;margin-bottom:2.2rem}
.prose{font-size:1.04rem;line-height:2}
.prose h2{font-size:1.4rem;margin:2.4rem 0 1rem;letter-spacing:.05em}
.prose h3{font-size:1.18rem;margin:2rem 0 .8rem}
.prose p{margin:0 0 1.35em}
.prose a{color:var(--gold);text-underline-offset:3px}
.prose ul,.prose ol{padding-left:1.4em;margin:0 0 1.35em}
.prose li{margin-bottom:.4em}
.prose li::marker{color:var(--gold)}
.prose blockquote{margin:1.8rem 0;padding:.4rem 0 .4rem 1.4rem;border-left:4px solid var(--gold);color:var(--bark);font-family:var(--serif)}
.prose blockquote p:last-child{margin-bottom:0}
.prose img{border-radius:12px;margin:1.8rem auto}
.prose hr{border:none;height:4px;width:64px;border-radius:2px;margin:2.6rem 0;
  background:linear-gradient(90deg,var(--c-red),var(--c-orange),var(--c-yellow),var(--c-green),var(--c-blue),var(--c-indigo))}
.prose table{width:100%;border-collapse:collapse;font-size:.94rem;margin:1.6rem 0}
.prose th,.prose td{border-bottom:1px solid var(--line);padding:.55rem .4rem;text-align:left}
.prose strong{font-weight:700}
.related{margin-top:3.5rem;padding-top:2rem;border-top:1px solid var(--line)}
.related h2{font-size:1.15rem;letter-spacing:.1em;margin-bottom:.6rem}

/* ── 頁尾 ── */
.foot{background:var(--paper-2);border-top:1px solid var(--line);padding:3rem 0 2.2rem;text-align:center}
.foot img{width:150px;margin:0 auto 1.2rem}
.foot .flinks{display:flex;gap:.6rem 1.5rem;justify-content:center;flex-wrap:wrap;margin-bottom:1.4rem;font-size:.92rem}
.foot a{color:var(--bark);text-decoration:none}
.foot a:hover{color:var(--gold)}
.foot .fine{font-size:.82rem;color:var(--bark);line-height:1.8;max-width:36rem;margin:0 auto}
.foot .fine p{margin:0 0 .4em}

/* 404 */
.lost{text-align:center;padding:5rem 0}
.lost img{width:min(280px,70%);margin:0 auto 1.6rem;opacity:.9}
.lost h1{font-size:1.6rem;letter-spacing:.1em;margin-bottom:.6rem}
.lost p{color:var(--bark)}