@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+TC:wght@400;600;700&display=swap');

/* 色系：加爾文站（深海軍藍漸層頁首＋金色 #B88A1E 邊框／按鈕＋米色底，紫色「回到尼希米讀經網」） */
:root{
  --navy:#17182A;
  --navy2:#252745;
  --gold:#B88A1E;
  --gold-dark:#8b6914;
  --gold-light:#F7E8BC;
  --gold-soft:#f5f0e0;
  --line:#D8B35F;
  --ink:#07152E;
  --text:#1a1a2e;
  --bg:#F5F2EC;
  --title-bg:#ede8d8;
  --muted:#5A3B0A;
  --home:#7C3AED;
  --home-dark:#6D28D9;
  --shadow:0 10px 30px rgba(23,24,42,.08);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;padding:32px 16px;color:var(--text);background:var(--bg);
  font-family:"Microsoft JhengHei","Noto Serif TC",serif;line-height:1.9;
}
a{color:var(--navy)}
.container{width:min(980px,100%);margin:0 auto}

.book-header{
  position:relative;padding:30px 36px 26px;color:var(--gold-light);
  background:linear-gradient(135deg,var(--navy),var(--navy2));
  border-radius:10px 10px 0 0;border-bottom:5px solid var(--gold);
}
.book-header .subtitle{color:#c8b060}
.book-header h1{margin:0 0 4px;font-size:clamp(1.35rem,4vw,1.75rem);letter-spacing:.04em}
.book-header .subtitle{opacity:.9;font-size:1rem;font-style:italic;letter-spacing:.03em}
.zh-toggle{
  position:absolute;bottom:12px;right:16px;padding:5px 13px;color:#333;
  background:rgba(255,255,255,.9);border:1.5px solid rgba(255,255,255,.35);border-radius:20px;
  font-weight:700;font-size:.82rem;cursor:pointer;box-shadow:0 2px 6px rgba(0,0,0,.25);
}
.zh-toggle:hover{background:#fff}

.page-nav,.top-nav{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  padding:14px 26px;background:#fff;border:1px solid var(--line);border-top:0;
}
.top-nav{justify-content:center}
.page-nav a,.page-nav .disabled,.top-nav a{
  display:inline-flex;align-items:center;justify-content:center;min-height:39px;padding:7px 18px;
  border:1px solid var(--gold);border-radius:6px;color:var(--ink);background:#fff;
  text-decoration:none;font-weight:700;
}
.page-nav a:hover,.top-nav a:hover{color:var(--gold-light);background:var(--navy);border-color:var(--gold)}
.page-nav .disabled{color:#aaa;border-color:#ddd;background:#fafafa}
.page-nav .qa-btn,.top-nav .qa-btn{color:var(--gold-light);background:var(--navy);border-color:var(--gold)}
.page-nav .qa-btn:hover,.top-nav .qa-btn:hover{background:var(--navy2)}

/* 信仰問答 modal */
.faith-qa-modal{display:none;position:fixed;inset:0;z-index:1000;align-items:center;justify-content:center;
  padding:16px;background:rgba(7,21,46,.55)}
.faith-qa-modal.active{display:flex}
.faith-qa-box{display:flex;flex-direction:column;width:min(900px,100%);height:80vh;min-height:520px;overflow:hidden;
  background:#fff;border-radius:10px;box-shadow:0 20px 50px rgba(0,0,0,.3)}
.faith-qa-head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 16px;
  color:var(--gold-light);background:var(--navy);border-bottom:4px solid var(--gold);font-weight:700}
.faith-qa-close{padding:5px 14px;color:var(--navy);background:#fff;border:1px solid var(--gold);border-radius:6px;
  font:inherit;font-size:.9rem;font-weight:700;cursor:pointer}
.faith-qa-close:hover{color:#fff;background:var(--gold)}
.faith-qa-body{flex:1;background:#f3f4f6}
.faith-qa-body iframe{display:block;width:100%;height:100%;border:0}
@media (max-width:640px){
  .faith-qa-modal{padding:0}
  .faith-qa-box{width:100%;height:100%;min-height:0;border-radius:0}
}
.page-nav .home-btn,.top-nav .home-btn{color:#fff;background:var(--home);border-color:var(--home)}
.page-nav .home-btn:hover,.top-nav .home-btn:hover{color:#fff;background:var(--home-dark);border-color:var(--home-dark)}

.index-panel,.article{
  margin-top:18px;padding:24px 28px;background:#fff;border:1px solid var(--line);
  border-radius:8px;box-shadow:var(--shadow);
}
.group-title{
  margin:0 0 12px;padding:6px 12px;color:var(--navy);background:var(--gold-soft);
  border-left:6px solid var(--gold);border-radius:3px;font-size:1.08rem;
}

.jump-bar{display:flex;flex-wrap:wrap;gap:14px;margin:2px 0 6px}
.jump-group{flex:1 1 220px;min-width:170px}
.jump-group label{display:block;margin:0 0 4px;color:var(--ink);font-size:.9rem;font-weight:700}
.jump-group select{
  width:100%;min-height:43px;padding:9px 12px;color:var(--ink);background:#fff;
  border:1px solid var(--gold);border-radius:6px;font:inherit;font-size:.95rem;
}

.chapter-title{
  margin:-24px -28px 18px;padding:12px 20px;color:var(--navy);background:var(--title-bg);
  border-left:8px solid var(--gold-dark);border-radius:8px 8px 0 0;
  font-size:clamp(1.18rem,3vw,1.4rem);font-weight:700;
}
.chapter-title .title-en{display:block;margin-top:2px;color:var(--muted);font-size:.78em;
  font-weight:400;font-style:italic;letter-spacing:.01em}
.article p{margin:0 0 1.15em;text-align:justify;font-size:1.01em;color:var(--text)}
.index-panel p{margin:0 0 1.1em;text-align:justify}

.sub-heading{
  margin:26px 0 10px;padding:6px 12px;color:var(--navy);background:var(--gold-soft);
  border-left:4px solid var(--gold-dark);border-radius:3px;font-size:1.05rem;
}
.article p.footnote{margin:-.3em 0 1.1em;padding:8px 14px;color:var(--muted);background:#f8f4e8;
  border-left:3px solid var(--gold);border-radius:3px;font-size:.86em;line-height:1.7}
.article p.signature{text-align:right;font-weight:700;color:var(--navy)}
.bible-block{margin:0 0 22px;padding:14px 18px;background:#fbf8ef;border:1px solid var(--line);
  border-left:6px solid var(--gold);border-radius:4px}
.bible-toggle-btn{display:inline-flex;align-items:center;gap:6px;padding:6px 16px;color:var(--navy);
  background:#fff;border:1.5px solid var(--gold);border-radius:20px;font:inherit;font-size:.92em;
  font-weight:700;cursor:pointer;transition:background .18s,color .18s}
.bible-toggle-btn:hover{color:var(--gold-light);background:var(--navy)}
.bible-toggle-btn .toggle-icon{display:inline-block;transition:transform .25s;font-style:normal}
.bible-toggle-btn.expanded .toggle-icon{transform:rotate(180deg)}
.bible-verses{margin-top:14px}
.bible-verses[hidden]{display:none!important}
.bible-title{margin:0 0 10px;color:var(--navy);font-size:1.15em;letter-spacing:.03em}
.article p.bible-verse{margin:.3em 0;text-align:left}
.bible-verse sup{margin-right:.35em;color:var(--gold-dark);font-weight:700}
.article p.bible-note{margin-top:10px;color:#66583a;font-size:.84em}
.page-mark{margin:22px 0;color:var(--muted);text-align:center;font-size:.85rem;letter-spacing:.05em}

.toc-book-heading{
  margin:16px 0 6px;padding:6px 12px;color:var(--navy);background:var(--gold-soft);
  border-left:5px solid var(--gold);border-radius:4px;font-size:1rem;
}
.toc-book-heading:first-child{margin-top:0}
.toc-list{margin:0 0 6px;padding-left:8px;list-style:none}
.toc-list li{margin:.34em 0}
.toc-list a{color:var(--ink);text-decoration:none}
.toc-list a:hover{color:var(--gold-dark);text-decoration:underline}

.copyright{
  margin-top:40px;padding:18px 24px;color:#4a4a3a;background:var(--title-bg);
  border-top:2px solid var(--gold-dark);border-radius:0 0 8px 8px;font-size:.86rem;line-height:1.8;
}
.copyright h3{margin:0 0 6px;color:var(--navy);font-size:1rem}

.collapse-toggle summary{
  cursor:pointer;list-style:none;padding:10px 14px;color:var(--gold-light);
  background:var(--navy);border-radius:6px;font-weight:700;font-size:1.05rem;
}
.collapse-toggle summary:hover{background:var(--navy2)}
.collapse-toggle summary::-webkit-details-marker{display:none}
.collapse-toggle summary::before{content:"▸ ";display:inline-block;transition:transform .15s}
.collapse-toggle[open] summary::before{transform:rotate(90deg)}
.collapse-toggle .collapse-body{margin-top:14px}

.author-table-wrap{overflow-x:auto;margin:18px 0}
.author-table{width:100%;border-collapse:collapse;background:#fff;font-size:.92rem}
.author-table th,.author-table td{padding:9px 11px;border:1px solid var(--line);vertical-align:top;text-align:left}
.author-table th{color:var(--gold-light);background:var(--navy);font-weight:700}
.author-table tr:nth-child(even) td{background:var(--gold-soft)}

.author-toggle-btn{
  display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:8px 20px;
  color:var(--gold-light);background:var(--navy);border:1px solid var(--gold);border-radius:6px;
  font:inherit;font-weight:700;cursor:pointer;
}
.author-toggle-btn:hover{background:var(--navy2)}
.author-bio{margin-top:16px}
.author-bio[hidden]{display:none!important}

.toc-title{margin:30px 0 4px;color:var(--navy);font-size:1.3rem}
.toc-group-title{margin:22px 0 6px;color:var(--gold-dark);font-size:1.12rem;
  border-bottom:2px solid var(--line);padding-bottom:4px}

@media(max-width:800px){
  body{padding:14px 7px}
  .book-header{padding:22px 18px}
  .zh-toggle{position:static;display:inline-block;margin-bottom:10px}
  .page-nav{justify-content:center}
  .jump-group{flex-basis:100%}
  .article,.index-panel{padding:18px 15px}
  .chapter-title{margin:-18px -15px 12px;padding:12px 14px}
}