/* ==========================================================================
   9Turn 九回錦 | 硬資產典藏平台 · 共用設計系統
   設計語言：深黛青 × 鎏金 × 象牙（珍稀、傳承、時間輪轉）
   字體：Noto Serif TC（標題）＋ Noto Sans TC（內文）
   ========================================================================== */

/* ---------- Design Tokens ---------- */
:root{
  --ink:        #0E2A23;   /* 墨黛青 · 主色 */
  --ink-deep:   #081712;
  --ink-soft:   #2C4A40;
  --gold:       #C9A227;   /* 鎏金 · 強調 */
  --gold-bright:#E2C875;
  --ivory:      #F7F3EA;   /* 象牙 · 背景 */
  --ivory-2:    #EFE8D8;
  --paper:      #FFFDF7;
  --teak:       #8A5A2E;   /* 檀木 · 輔助 */
  --cinnabar:   #B03A2E;   /* 朱砂 · 點綴 */
  --line:       #DDD3BE;
  --text:       #22312C;
  --text-soft:  #5A6B64;
  --white:      #FFFFFF;
  --radius:     14px;
  --shadow:     0 10px 30px rgba(14,42,35,.10);
  --font-serif: "Noto Serif TC","Songti TC","PMingLiU","serif";
  --font-sans:  "Noto Sans TC","Microsoft JhengHei","PingFang TC","sans-serif";
}

/* ---------- Base ---------- */
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; color:var(--text);
  font-family:var(--font-sans);
  background:var(--ink);
  line-height:1.85;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
/* 每頁壓滿版底圖（每頁不同 webp，由生成器注入 bg-XX） */
.bg-fill{
  position:fixed; top:0; left:0; width:100%; height:100%;
  z-index:0; background-size:cover; background-position:center;
  background-repeat:no-repeat; opacity:.5; pointer-events:none;
}
body>*{position:relative; z-index:1}
img{max-width:100%;height:auto;display:block}
a{color:var(--ink-soft)}
h1,h2,h3,h4{font-family:var(--font-serif);color:var(--ink);line-height:1.35;font-weight:700}
p{line-height:1.95;margin:0 0 1.1em}
.container{width:min(1180px,92vw);margin:0 auto;min-width:0}
.article .container{width:100%;max-width:100%;margin:0;min-width:0}
.card-grid,.pillar-row,.stat-row,.appendix-band .grid,.footer-grid{min-width:0}
section{padding:clamp(48px,7vw,88px) 0}
.hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* ---------- 章節編號 / 眉標 ---------- */
.eyebrow{
  font-family:var(--font-serif);
  font-size:13px;letter-spacing:.32em;
  color:var(--gold);text-transform:uppercase;
  margin:0 0 10px;display:flex;align-items:center;gap:10px;
}
.eyebrow::before{content:"";width:34px;height:1px;background:var(--gold);display:inline-block}
.sec-head{margin-bottom:clamp(28px,4vw,44px)}
.sec-head h2{font-size:clamp(26px,3.6vw,38px);margin:.1em 0 .3em}
.sec-head .lede{color:var(--text-soft);font-size:clamp(15px,1.6vw,17px);max-width:62ch}

/* ---------- 導覽 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(14,42,35,.97);backdrop-filter:blur(8px);
  border-bottom:1px solid rgba(201,162,39,.28);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:16px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ivory)}
.brand svg{width:38px;height:38px}
.brand-name{font-family:var(--font-serif);font-weight:900;font-size:20px;letter-spacing:.08em;line-height:1.1}
.brand-sub{display:block;font-family:var(--font-sans);font-size:11px;letter-spacing:.28em;color:var(--gold-bright)}
.nav-toggle{
  display:none;background:none;border:none;color:var(--ivory);
  font-size:24px;cursor:pointer;width:44px;height:44px;
}
.site-nav{display:flex;gap:4px;align-items:center}
.site-nav a{
  color:var(--ivory);text-decoration:none;padding:10px 14px;
  font-size:14.5px;border-radius:8px;letter-spacing:.03em;
}
.site-nav a:hover{background:rgba(201,162,39,.16);color:var(--gold-bright)}
.site-nav .nav-cta{
  background:var(--gold);color:var(--ink-deep);font-weight:700;margin-left:6px;
}
.site-nav .nav-cta:hover{background:var(--gold-bright);color:var(--ink-deep)}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background-color:#081712;
  background-size:cover;background-position:center;
  color:var(--ivory);padding:clamp(70px,10vw,140px) 0;
}
/* 滿版背景遮罩，確保文字可讀 */
.hero-bg-img{position:absolute;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(100deg, rgba(8,23,18,.92) 15%, rgba(14,42,35,.55) 60%, rgba(8,23,18,.35))}
.hero-slogan{font-family:var(--font-serif);font-size:clamp(17px,2.2vw,23px);color:var(--gold-bright);letter-spacing:.08em;margin:0 0 10px;font-weight:700}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(201,162,39,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(201,162,39,.05) 1px,transparent 1px);
  background-size:56px 56px;opacity:.5;
}
.hero .container{position:relative;z-index:2}
.hero-inner{position:relative;z-index:2}
.hero-text{max-width:720px}
@media (max-width:860px){
  .hero-inner{flex-direction:column}
}
.hero h1{
  font-size:clamp(30px,5vw,56px);color:var(--ivory);
  margin:.2em 0 .3em;letter-spacing:.04em;
}
.hero h1 em{font-style:normal;color:var(--gold-bright)}
.hero .tagline{font-size:clamp(16px,2vw,21px);color:rgba(247,243,234,.9);max-width:56ch;margin-bottom:28px}
.hero .meta{display:flex;flex-wrap:wrap;gap:14px;color:var(--gold-bright);font-size:13.5px;letter-spacing:.14em}
.hero .meta span{display:inline-flex;align-items:center;gap:6px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 26px;border-radius:10px;text-decoration:none;font-weight:600;
  font-size:15px;letter-spacing:.04em;cursor:pointer;border:1px solid transparent;
}
.btn-gold{background:linear-gradient(135deg, #C9A227, #E2C875 55%, #B8941F);color:var(--ink-deep);border:1px solid rgba(184,148,31,.7);box-shadow:0 6px 18px rgba(201,162,39,.35)}
.btn-gold:hover{background:linear-gradient(135deg, #E2C875, #F2DFA5 55%, #C9A227);transform:translateY(-1px)}
.btn-ghost{border-color:rgba(201,162,39,.5);color:var(--ivory)}
.btn-ghost:hover{background:rgba(201,162,39,.14)}
.btn-outline{border-color:var(--gold);color:var(--ink-soft)}
.btn-outline:hover{background:rgba(201,162,39,.12)}

/* ---------- 卡片 ---------- */
.card-grid{display:grid;gap:20px;grid-template-columns:1fr}
.card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;display:flex;flex-direction:column;gap:12px;
  transition:transform .2s,box-shadow .2s;
  overflow:hidden; /* 防止圖片負margin出血跑出卡片框外 */
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.card .card-img-wrap{position:relative;margin:-24px -24px 6px;border-radius:var(--radius) var(--radius) 0 0;overflow:hidden}
.card img{width:100%;height:160px;object-fit:cover;display:block}
.card-feature img{display:none}
.pillar-icon{display:none}
.card .num{font-family:var(--font-serif);font-weight:900;font-size:30px;color:var(--gold)}
.card h3{margin:0;font-size:20px}
.card p{margin:0;color:var(--text-soft);font-size:14.5px}
.card .tag{color:var(--cinnabar);font-size:12.5px;letter-spacing:.08em;font-weight:600}
.card a.card-link{margin-top:auto}

/* 精選功能卡（更強調） */
.card-feature{border-top:3px solid var(--gold)}
.card-feature .num{font-size:22px}

/* ---------- 三大分類橫條 ---------- */
.pillar-row{display:grid;grid-template-columns:1fr;gap:16px}
.pillar{
  border-radius:var(--radius);padding:26px;color:var(--ivory);
  border:1px solid rgba(255,255,255,.12);position:relative;overflow:hidden;
}
.pillar img{width:100%;height:150px;object-fit:cover;display:block;border-radius:6px;margin-bottom:18px}
.pillar.humanity{background:linear-gradient(150deg,#3A5A4E,#1D3B32)}
.pillar.earth{background:linear-gradient(150deg,#7C5A34,#4A3520)}
.pillar.industry{background:linear-gradient(150deg,#31506B,#172B3D)}
.pillar .pillar-icon{width:44px;height:44px;margin-bottom:14px}
.pillar h3{margin:0 0 6px;color:var(--ivory);font-size:22px}
.pillar .pillar-zh{color:var(--gold-bright);font-size:13px;letter-spacing:.2em;margin-bottom:10px}
.pillar p{margin:0;color:rgba(247,243,234,.85);font-size:14.5px}
.pillar .count{margin-top:16px;font-size:13px;color:var(--gold-bright)}

/* ---------- 表格 ---------- */
.tbl-wrap{overflow-x:auto;margin:20px 0}
table{width:100%;border-collapse:collapse;table-layout:fixed;font-size:14.5px}
th,td{padding:12px 14px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
th{background:var(--ink);color:var(--ivory);font-family:var(--font-serif);font-weight:700}
tr:nth-child(even) td{background:rgba(239,232,216,.5)}
td:first-child{color:var(--ink);font-weight:600}

/* ---------- 標籤 / 徽章 ---------- */
.badge{
  display:inline-block;padding:3px 10px;border-radius:100px;
  font-size:12px;letter-spacing:.06em;font-weight:600;
}
.badge-gold{background:rgba(201,162,39,.15);color:#8A6A15;border:1px solid rgba(201,162,39,.4)}
.badge-teak{background:rgba(138,90,46,.12);color:#6E4523;border:1px solid rgba(138,90,46,.35)}
.badge-cinnabar{background:rgba(176,58,46,.10);color:var(--cinnabar);border:1px solid rgba(176,58,46,.3)}

/* ---------- 內容文章（正文） ---------- */
.article{background:rgba(255,253,247,.93);backdrop-filter:blur(3px);border:1px solid rgba(221,211,190,.6);border-radius:var(--radius);padding:clamp(22px,3.6vw,44px)}
.article h2{font-size:clamp(22px,2.8vw,30px);margin:1.6em 0 .6em;padding-top:.4em;border-top:2px solid var(--ivory-2)}
.article h3{font-size:clamp(18px,2.2vw,22px);margin:1.4em 0 .5em}
.article h4{font-size:17px;margin:1.2em 0 .4em}
.article ul,.article ol{margin:0 0 1.1em;padding-left:1.4em}
.article li{margin-bottom:.5em}
.article blockquote{
  margin:1.4em 0;padding:16px 20px;border-left:4px solid var(--gold);
  background:var(--ivory);border-radius:0 10px 10px 0;color:var(--text-soft);font-style:normal;
}
.article .callout{
  display:flex;gap:14px;padding:18px 20px;border-radius:12px;
  background:var(--ivory);border:1px solid var(--line);margin:1.4em 0;
}
.article .callout .ico{flex:0 0 auto;color:var(--gold);font-size:22px}
.article strong{color:var(--ink)}

/* 章節四級編號（1 / 1.1 / 1.1.1） */
.level-1{font-size:24px}
.level-2{font-size:20px}
.level-3{font-size:17px}

/* ---------- 麵包屑 ---------- */
.crumbs{font-size:13.5px;color:var(--text-soft);margin:22px 0 0;padding:0}
.crumbs a{color:var(--teak);text-decoration:none}
.crumbs a:hover{text-decoration:underline}
.crumbs .sep{margin:0 6px;color:var(--line)}

/* ---------- 頁首標題帶 ---------- */
.page-head{
  background:linear-gradient(160deg,var(--ink),#14382F);
  color:var(--ivory);padding:clamp(44px,6vw,76px) 0;
}
.page-head h1{color:var(--ivory);font-size:clamp(26px,4vw,40px);margin:.15em 0 .2em}
.page-head .lede{color:rgba(247,243,234,.88);max-width:66ch;font-size:clamp(15px,1.8vw,17px)}
.page-head .crumbs{color:rgba(247,243,234,.6)}
.page-head .crumbs a{color:var(--gold-bright)}

/* ---------- 側欄 + 主內容兩欄 ---------- */
.layout-2col{display:grid;grid-template-columns:1fr;gap:28px;padding:clamp(28px,4vw,52px) 0}
.sidebar{order:2}
.sidebar .box{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:22px;margin-bottom:20px}
.sidebar h4{margin:0 0 12px;font-size:17px}
.sidebar ul{list-style:none;margin:0;padding:0}
.sidebar li{margin:0;border-bottom:1px dashed var(--line)}
.sidebar li:last-child{border-bottom:none}
.sidebar a{display:block;padding:9px 4px;text-decoration:none;color:var(--text);font-size:14.5px}
.sidebar a:hover{color:var(--gold);padding-left:8px;transition:padding .15s}
.sidebar a.active{color:var(--gold);font-weight:700}
.sidebar .mini-num{float:right;color:var(--line);font-family:var(--font-serif)}

/* ---------- 章節導覽（上下頁） ---------- */
.pager{display:grid;grid-template-columns:1fr;gap:14px;margin-top:34px}
.pager a{
  background:var(--paper);border:1px solid var(--line);border-radius:12px;
  padding:16px 20px;text-decoration:none;color:var(--text);display:flex;flex-direction:column;gap:4px;
}
.pager a:hover{border-color:var(--gold)}
.pager .dir{font-size:12px;letter-spacing:.2em;color:var(--gold)}
.pager .t{font-weight:700;font-family:var(--font-serif)}

/* ---------- FAQ ---------- */
.faq details{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:16px 20px;margin-bottom:12px}
.faq summary{cursor:pointer;font-weight:700;font-family:var(--font-serif);color:var(--ink);list-style:none;position:relative;padding-right:34px}
.faq summary::after{content:"＋";position:absolute;right:6px;color:var(--gold);font-weight:700}
.faq details[open] summary::after{content:"－"}
.faq details p{margin:.6em 0 0;color:var(--text-soft)}

/* ---------- 附錄章節 ---------- */
.appendix-band{background:var(--ink);color:var(--ivory);padding:clamp(34px,5vw,56px) 0;text-align:center}
.appendix-band h2{color:var(--ivory)}
.appendix-band .grid{display:grid;grid-template-columns:1fr;gap:20px;justify-items:center}
.appendix-band .btn{margin-top:6px}

/* ---------- 頁尾 ---------- */
.site-footer{background:var(--ink-deep);color:rgba(247,243,234,.75);padding:56px 0 26px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:28px}
.footer-grid h5{color:var(--gold-bright);font-family:var(--font-serif);margin:0 0 12px;font-size:16px}
.footer-grid a{display:block;color:rgba(247,243,234,.75);text-decoration:none;font-size:14px;padding:3px 0}
.footer-grid a:hover{color:var(--gold-bright)}
.footer-note{color:rgba(247,243,234,.45);font-size:12.5px;line-height:1.7;margin-top:26px;border-top:1px solid rgba(201,162,39,.2);padding-top:18px}
.copyright{text-align:center;font-size:13px;color:rgba(247,243,234,.5);margin-top:22px}

/* ---------- 統計數字 ---------- */
.stat-row{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.stat{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:22px;text-align:center}
.stat .val{font-family:var(--font-serif);font-weight:900;font-size:clamp(26px,3.4vw,38px);color:var(--ink)}
.stat .val em{font-style:normal;color:var(--gold)}
.stat .lbl{color:var(--text-soft);font-size:13.5px;margin-top:4px}

/* ---------- 時間軸 ---------- */
.timeline{position:relative;margin:24px 0;padding-left:26px}
.timeline::before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;background:var(--line)}
.tl-item{position:relative;padding:0 0 26px 22px}
.tl-item::before{content:"";position:absolute;left:-26px;top:6px;width:16px;height:16px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 4px rgba(201,162,39,.18)}
.tl-item .tl-time{color:var(--gold);font-weight:700;font-size:13px;letter-spacing:.1em}
.tl-item .tl-title{font-family:var(--font-serif);font-weight:700;font-size:17px;margin:2px 0}
.tl-item p{margin:0;color:var(--text-soft);font-size:14px}

/* ---------- 程式碼 / 標記 ---------- */
code{background:var(--ivory-2);border:1px solid var(--line);border-radius:6px;padding:2px 6px;font-size:13.5px;color:var(--cinnabar)}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (min-width:560px){
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .pillar-row{grid-template-columns:repeat(3,1fr)}
  .stat-row{grid-template-columns:repeat(4,1fr)}
  .pager{grid-template-columns:1fr 1fr}
  .appendix-band .grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(4,1fr)}
}
@media (min-width:900px){
  .layout-2col{grid-template-columns:minmax(0,1fr) 300px}
  .sidebar{order:1}
  .sidebar{order:0}
}
@media (min-width:720px){
  .nav-toggle{display:none}
}
@media (max-width:719px){
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .site-nav{
    position:absolute;top:100%;left:0;right:0;flex-direction:column;
    background:var(--ink);padding:12px;display:none;border-bottom:1px solid rgba(201,162,39,.3);
  }
  .site-nav.open{display:flex}
  .site-nav a{width:100%;padding:12px 14px}
  .layout-2col{padding-top:24px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto}
}

/* ==========================================================================
   9Turn v2 UI 元件：MegaMenu / 搜尋 / TOC / 收藏 / 相關 / 標籤雲 / 浮動導航 / 摺疊
   ========================================================================== */
/* MegaMenu（純 CSS 懸停下拉，2 層以上） */
.site-nav{display:flex;align-items:center;gap:2px;flex-wrap:nowrap}
.site-nav>a{padding:10px 11px;border-radius:8px;text-decoration:none;color:var(--ivory);font-size:14.5px;white-space:nowrap}
.site-nav>a:hover{background:rgba(201,162,39,.15);color:var(--gold-bright)}
.drop{position:relative;display:flex;align-items:stretch}
.drop-a{display:inline-flex;align-items:center;gap:5px;padding:10px 11px;border-radius:8px;color:var(--ivory);font-size:14.5px;white-space:nowrap;text-decoration:none}
.drop-a:hover{background:rgba(201,162,39,.15);color:var(--gold-bright)}
.drop-a .caret{opacity:.6;transition:transform .18s}
.drop:hover .drop-a,.drop:focus-within .drop-a{color:var(--gold-bright)}
.drop:hover .drop-a .caret,.drop:focus-within .drop-a .caret{transform:rotate(180deg)}
.mega{position:absolute;top:100%;left:50%;transform:translateX(-50%);min-width:300px;max-width:92vw;
background:var(--ink);border:1px solid rgba(201,162,39,.35);border-top:none;border-radius:0 0 12px 12px;
padding:16px 18px;display:none;gap:4px;columns:2;column-gap:6px;
box-shadow:0 24px 60px rgba(0,0,0,.45);z-index:200;max-height:72vh;overflow:auto}
.drop:hover .mega,.drop:focus-within .mega{display:block}
.mega a{display:block;padding:8px 12px;border-radius:6px;color:rgba(247,243,234,.88);font-size:13.5px;text-decoration:none;white-space:normal;break-inside:avoid;line-height:1.45}
.mega a:hover{background:rgba(201,162,39,.16);color:var(--gold-bright)}
.mega-head{column-span:all;font-family:var(--font-serif);font-size:12px;letter-spacing:.18em;color:var(--gold-bright);text-transform:uppercase;padding:8px 12px 4px;border-bottom:1px solid rgba(201,162,39,.25);margin:4px 0 6px}
.mega-head:first-child{margin-top:0}
.site-nav .drop:nth-child(4) .mega{columns:3;min-width:660px}
.site-nav .drop:nth-child(7) .mega{columns:5;min-width:820px}
@media (max-width:1100px){
  .site-nav .drop:nth-child(7) .mega{columns:4;min-width:680px}
}
@media (max-width:900px){
  .site-nav>a,.drop-a{padding:10px 8px;font-size:13.5px}
  .mega{columns:2;min-width:240px}
  .site-nav .drop:nth-child(4) .mega,.site-nav .drop:nth-child(7) .mega{columns:2;min-width:280px}
}
@media (max-width:719px){
  .site-nav{gap:0;position:absolute;top:100%;left:0;right:0;flex-direction:column;background:var(--ink);padding:10px 14px;display:none;border-bottom:1px solid rgba(201,162,39,.3);max-height:78vh;overflow:auto}
  .site-nav.open{display:flex}
  .drop{flex-direction:column;align-items:stretch}
  .site-nav>a,.drop-a{width:100%;padding:12px 14px;font-size:15px;justify-content:flex-start}
  .mega{position:static;transform:none;background:transparent;border:none;box-shadow:none;padding:4px 0 10px 18px;display:block;columns:1;max-height:none;min-width:0}
  .mega a{color:rgba(247,243,234,.8);padding:8px 12px}
  .mega-head{border-bottom:none}
}

/* 網站地圖頁 */
.sitemap-grid{display:grid;gap:16px;grid-template-columns:1fr;margin-top:22px}
@media (min-width:680px){.sitemap-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1000px){.sitemap-grid{grid-template-columns:repeat(3,1fr)}}
.sitemap-grid .box{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.sitemap-grid .box h4{margin:0 0 10px;font-size:15px;color:var(--ink);font-family:var(--font-serif)}
.sitemap-grid .box a{display:block;padding:5px 2px;color:var(--text-soft);font-size:13.5px;text-decoration:none;border-bottom:1px dashed var(--line)}
.sitemap-grid .box a:last-child{border-bottom:none}
.sitemap-grid .box a:hover{color:var(--gold)}

/* 全站搜尋（autocomplete） */
.search-toggle{display:none;background:none;border:none;color:var(--ivory);cursor:pointer;padding:6px;margin-left:4px;flex:none}
.search-toggle:hover{color:var(--gold-bright)}
@media (min-width:720px){.search-toggle{display:inline-flex}}
.search-overlay{position:fixed;inset:0;background:rgba(8,23,18,.55);z-index:200;display:flex;justify-content:center;align-items:flex-start;padding-top:12vh;backdrop-filter:blur(3px)}
.search-overlay[hidden]{display:none!important}
.search-box{width:min(620px,92vw);background:var(--paper);border-radius:16px;box-shadow:0 24px 70px rgba(0,0,0,.35);overflow:hidden}
.search-box input{width:100%;padding:18px 22px;font-size:18px;border:none;outline:none;font-family:var(--font-serif);color:var(--ink);background:transparent}
.search-suggest{max-height:42vh;overflow:auto;border-top:1px solid var(--line)}
.search-suggest a{display:flex;justify-content:space-between;gap:8px;padding:12px 22px;color:var(--ink-soft);text-decoration:none;font-size:14.5px}
.search-suggest a:hover{background:var(--ivory-2)}
.search-suggest .hl{color:var(--gold);font-weight:700}
.search-suggest .sc-tag{font-size:11px;color:var(--gold);letter-spacing:.1em;flex:none}

/* TOC 文章目錄 */
.toc{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;margin-bottom:18px}
.toc h4{margin:0 0 12px;font-size:14px;letter-spacing:.08em;color:var(--gold);text-transform:uppercase}
.toc ol{margin:0;padding-left:0;list-style:none;display:grid;gap:4px}
.toc a{display:block;font-size:13.5px;color:var(--text-soft);padding:5px 0 5px 12px;border-left:2px solid var(--line);text-decoration:none}
.toc a:hover{color:var(--gold);border-left-color:var(--gold)}
.toc a.lvl-3{padding-left:26px;font-size:13px}
.toc a.active{color:var(--gold);border-left-color:var(--gold);font-weight:700}
.sidebar .toc{position:static} /* TOC靜態排列，避免sticky蓋住下方延伸閱讀等box */

/* Treemap 側欄樹狀地圖 */
.treemap{background:rgba(255,253,247,.9);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;margin-bottom:18px}
.treemap h4{margin:0 0 10px;font-size:14px;letter-spacing:.08em;color:var(--gold);text-transform:uppercase}
.treemap details{margin:2px 0}
.treemap summary{cursor:pointer;list-style:none;padding:5px 2px;font-size:14px;font-weight:600;color:var(--ink)}
.treemap summary::-webkit-details-marker{display:none}
.treemap summary::before{content:"▸ ";color:var(--gold)}
.treemap details[open] summary::before{content:"▾ "}
.treemap summary a{display:inline;padding:0;font-weight:600}
.treemap ul{margin:2px 0 6px;padding:0 0 0 16px;list-style:none}
.treemap ul a{display:block;padding:4px 2px;font-size:13px;color:var(--text-soft);text-decoration:none}
.treemap ul a:hover{color:var(--gold);padding-left:7px;transition:padding .15s}
.treemap .tr-leaf{display:block;padding:5px 2px;font-size:14px;font-weight:600;color:var(--ink);text-decoration:none}

/* 收藏本頁 */
.save-btn{display:flex;align-items:center;gap:9px;width:100%;background:var(--ink);color:var(--ivory);border:none;border-radius:10px;padding:12px 16px;cursor:pointer;font-family:var(--font-serif);font-size:14.5px;justify-content:center;transition:background .2s}
.save-btn:hover{background:var(--ink-deep)}
.save-btn.saved{background:var(--gold-bright);color:var(--ink-deep)}
.save-btn.saved svg{fill:currentColor}

/* 相關文章推薦 */
.related{margin-top:clamp(34px,4vw,50px);border-top:1px solid var(--line);padding-top:clamp(26px,3vw,36px)}
.related h2{font-size:clamp(22px,3vw,28px);margin-bottom:16px}
.rel-grid{display:grid;gap:12px}
@media (min-width:560px){.rel-grid{grid-template-columns:repeat(3,1fr)}}
.rel-card{display:flex;flex-direction:column;gap:7px;background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:16px;text-decoration:none;transition:transform .18s,border-color .18s}
.rel-card:hover{transform:translateY(-2px);border-color:var(--gold)}
.rc-tag{font-size:10.5px;letter-spacing:.18em;color:var(--gold);text-transform:uppercase}
.rc-title{font-family:var(--font-serif);font-weight:700;font-size:15px;color:var(--ink);line-height:1.5}

/* 標籤雲（footer） */
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;align-items:center;border-top:1px solid var(--line);padding:18px 0;margin:8px 0 4px}
.tc-title{font-family:var(--font-serif);font-weight:700;color:var(--ink);margin-right:8px;font-size:14px}
a.tag{display:inline-block;padding:5px 12px;background:var(--ivory-2);border:1px solid var(--line);border-radius:999px;color:var(--ink-soft);font-size:12.5px;text-decoration:none}
a.tag:hover{background:var(--ink);color:var(--gold-bright);border-color:var(--ink)}

/* 浮動站內導航 */
.float-nav{position:fixed;right:18px;bottom:18px;display:flex;flex-direction:column;gap:9px;z-index:150}
.float-nav a{width:46px;height:46px;display:flex;align-items:center;justify-content:center;background:var(--ink);color:var(--ivory);border-radius:50%;box-shadow:var(--shadow);opacity:0;transform:translateY(10px);transition:opacity .2s,transform .2s}
.float-nav a.show{opacity:1;transform:none}
.float-nav a:hover{background:var(--gold);color:var(--ink-deep)}
/* LINE 官方圖示：綠底圓角方形＋白氣泡＋綠字，常駐顯示 */
.float-nav .f-line{width:40px;height:40px;opacity:1;transform:none;background:transparent;border:none;border-radius:11px;color:var(--ink-deep);box-shadow:0 6px 18px rgba(8,23,18,.35)}
.float-nav .f-line:hover{background:transparent;transform:scale(1.06)}
@media (max-width:719px){.float-nav{right:12px;bottom:12px}}

/* 摺疊 Accordion（文章內） */
details.acc{border:1px solid var(--line);border-radius:12px;margin:10px 0;background:var(--paper);overflow:hidden}
details.acc summary{list-style:none;cursor:pointer;padding:15px 18px;font-family:var(--font-serif);font-weight:700;color:var(--ink);display:flex;align-items:center;gap:8px;font-size:15px}
details.acc summary::-webkit-details-marker{display:none}
details.acc summary::after{content:"+";margin-left:auto;color:var(--gold);font-size:18px;line-height:1;flex:none}
details.acc[open] summary::after{content:"–"}
details.acc .acc-body{padding:2px 18px 16px;color:var(--text-soft);font-size:14.5px;border-top:1px solid var(--line);padding-top:12px}

/* 資產頁典藏插圖（WebP） */
.asset-fig{margin:0 0 28px;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--paper)}
.asset-fig img{width:100%;height:auto;object-fit:cover;aspect-ratio:4/3}
.asset-fig figcaption{font-size:12.5px;color:var(--text-soft);padding:10px 16px;border-top:1px solid var(--line);font-family:var(--font-serif);letter-spacing:.02em}/* ========== 內容層改版追加：卡片配圖（rel-card / box） ========== */
.rel-card{position:relative;overflow:hidden;border:1px solid rgba(255,255,255,.12);padding:18px 18px;min-height:118px;display:flex;flex-direction:column;
  background:linear-gradient(135deg,#1D3B32,#0E2A23 55%,#162622);box-shadow:0 6px 18px rgba(8,23,18,.18)}
.rel-card::after{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(120deg,rgba(201,162,39,.12),rgba(8,23,18,0) 55%)}
.rel-card .rc-tag{position:relative;z-index:2;align-self:flex-start;margin:14px 0 0 14px;
  padding:3px 10px;background:rgba(14,42,35,.78);border-radius:999px;color:var(--gold-bright)}
.rel-card .rc-title{position:relative;z-index:2;color:var(--ivory);font-size:14.5px;
  line-height:1.45;margin:auto 14px 14px;text-shadow:0 1px 3px rgba(0,0,0,.5)}
.rel-card:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(8,23,18,.28)}
.box-img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:10px;
  margin-bottom:14px;display:block;border:1px solid var(--line)}