:root{
  --paper:#f7f3ea; --paper2:#f1ead9; --ink:#2b2620; --ink2:#5a5248;
  --red:#8e2323; --red2:#b5433a; --gold:#a8853f; --green:#5b7043;
  --line:#e3d9c6; --card:#fffdf7;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--paper);color:var(--ink);font-family:"Noto Serif SC","STSong","SimSun",serif;line-height:1.8}
a{color:var(--red);text-decoration:none}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}

/* 顶部导航 */
header.nav{position:fixed;top:0;left:0;right:0;z-index:99;background:rgba(247,243,234,.92);backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
header.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:56px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--red);letter-spacing:4px}
.brand .seal{width:30px;height:30px;background:var(--red);color:#fff;border-radius:4px;display:flex;align-items:center;justify-content:center;font-size:14px;letter-spacing:0}
nav.menus{display:flex;gap:6px;flex-wrap:wrap}
nav.menus a{padding:6px 12px;border-radius:4px;font-size:14px;color:var(--ink2)}
nav.menus a:hover{background:var(--paper2);color:var(--red)}

/* 首屏 */
.hero{padding:150px 0 90px;text-align:center;background:
 radial-gradient(1200px 400px at 50% -100px, rgba(142,35,35,.10), transparent),
 linear-gradient(180deg,var(--paper) 0%,var(--paper) 70%,var(--paper2) 100%)}
.hero h1{font-size:56px;letter-spacing:22px;color:var(--red);text-indent:22px;font-weight:700}
.hero .sub{margin-top:16px;color:var(--ink2);letter-spacing:6px}
.hero .poem{margin-top:26px;display:inline-block;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:14px 30px;color:var(--ink);font-size:15px;letter-spacing:3px;background:var(--card)}
.hero .meta{margin-top:24px;color:#9a8f7d;font-size:13px;letter-spacing:2px}

/* 通用章节 */
section.sec{padding:72px 0;border-top:1px solid var(--line)}
section.sec:nth-of-type(even){background:var(--paper2)}
.sec-head{text-align:center;margin-bottom:44px}
.sec-head .tag{display:inline-block;color:var(--gold);border:1px solid var(--gold);padding:2px 14px;border-radius:20px;font-size:12px;letter-spacing:4px}
.sec-head h2{margin-top:12px;font-size:30px;letter-spacing:10px;text-indent:10px;color:var(--ink)}
.sec-head p{margin-top:8px;color:var(--ink2);font-size:14px}

/* 摘要 */
.summary-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:28px}
.summary-grid .txt p{margin-bottom:14px;text-indent:2em;color:#3d372f}
.summary-grid .txt .quote{border-left:3px solid var(--red);background:var(--card);padding:14px 18px;text-indent:0;color:var(--red2);font-size:14px}
.stat-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;align-content:start}
.stat-cards .sc{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:18px;text-align:center}
.stat-cards .sc b{display:block;font-size:30px;color:var(--red)}
.stat-cards .sc span{font-size:13px;color:var(--ink2);letter-spacing:2px}

/* 背景 */
.bg-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.bg-card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:22px;transition:.2s}
.bg-card:hover{transform:translateY(-4px);box-shadow:0 8px 20px rgba(60,50,30,.08)}
.bg-card h3{color:var(--red);font-size:17px;margin-bottom:8px;letter-spacing:2px}
.bg-card p{font-size:13.5px;color:#4d463c}

/* 图谱 */
#graphBox{width:100%;height:640px;background:var(--card);border:1px solid var(--line);border-radius:12px;position:relative;overflow:hidden;touch-action:none}
#graphBox .hint{position:absolute;left:16px;bottom:12px;font-size:12px;color:#9a8f7d}
.legend{display:flex;gap:14px;justify-content:center;margin-top:14px;flex-wrap:wrap}
.legend .lg{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--ink2)}
.legend .dot{width:10px;height:10px;border-radius:50%}
.graph-tip{position:fixed;z-index:999;max-width:300px;background:#fffdf7;border:1px solid var(--gold);border-radius:8px;padding:12px 14px;font-size:13px;color:var(--ink);box-shadow:0 6px 18px rgba(0,0,0,.15);display:none;pointer-events:none}
.graph-tip b{color:var(--red);font-size:15px}

/* 图谱交互增强：缓动过渡 + 触控 + 工具条 */
.gsvg{display:block;width:100%;height:100%;touch-action:none;cursor:grab}
.gsvg:active{cursor:grabbing}
.gsvg > g{will-change:transform}
.gnode{cursor:pointer;transition:opacity .25s ease}
.gnode circle{transition:opacity .25s ease, r .18s ease}
.gnode text{pointer-events:none;user-select:none;transition:opacity .25s ease}
.gnode.dragging{cursor:grabbing}
.gnode.dragging circle{stroke:var(--red)}
.glink{transition:opacity .3s ease}
.glabel{transition:opacity .25s ease;pointer-events:none}
#graphBox .gtb{position:absolute;top:12px;right:12px;display:flex;gap:6px;z-index:5}
#graphBox .gtb button{border:1px solid var(--line);background:rgba(255,253,247,.92);color:var(--ink2);border-radius:6px;padding:4px 10px;font-size:13px;cursor:pointer;font-family:inherit;line-height:1.5}
#graphBox .gtb button:hover{background:var(--red);border-color:var(--red);color:#fff}

/* 人物 */
.person-filter{display:flex;gap:8px;justify-content:center;margin-bottom:26px;flex-wrap:wrap}
.person-filter button{border:1px solid var(--line);background:var(--card);color:var(--ink2);padding:6px 16px;border-radius:20px;cursor:pointer;font-family:inherit;font-size:13px;letter-spacing:2px}
.person-filter button.on,.person-filter button:hover{background:var(--red);border-color:var(--red);color:#fff}
.person-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:18px}
.p-card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:22px;position:relative;transition:.2s}
.p-card:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(60,50,30,.10)}
.p-card .avatar{width:52px;height:52px;border-radius:50%;background:linear-gradient(135deg,var(--red),var(--gold));color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;float:left;margin-right:14px}
.p-card h3{font-size:19px;color:var(--ink)}
.p-card .alias{font-size:12.5px;color:#9a8f7d;margin-top:2px}
.p-card .badges{margin:10px 0;clear:both}
.p-card .badge{display:inline-block;font-size:12px;padding:2px 10px;border-radius:14px;margin:2px 4px 2px 0;background:rgba(142,35,35,.08);color:var(--red)}
.p-card .badge.b2{background:rgba(168,133,63,.12);color:var(--gold)}
.p-card .judge{font-size:13px;color:var(--red2);background:var(--paper2);border-radius:6px;padding:8px 12px;margin:8px 0}
.p-card .desc{font-size:13.5px;color:#4d463c;text-align:justify}
.p-card .rel{margin-top:10px;font-size:12.5px;color:var(--ink2);border-top:1px dashed var(--line);padding-top:8px}

/* 图谱点击联动：人物卡定位高亮 */
.p-card.hl{outline:2px solid var(--red);box-shadow:0 0 0 6px rgba(142,35,35,.12),0 10px 24px rgba(60,50,30,.12);animation:cardPulse .9s ease 2}
@keyframes cardPulse{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}

/* 事件表 */
.event-table{width:100%;border-collapse:collapse;background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden;font-size:14px}
.event-table th{background:var(--red);color:#fff;padding:12px 14px;text-align:left;letter-spacing:2px;font-weight:500;white-space:nowrap}
.event-table td{padding:12px 14px;border-top:1px solid var(--line);vertical-align:top;color:#3d372f}
.event-table tr:hover td{background:rgba(142,35,35,.04)}
.event-table .ch{color:var(--gold);white-space:nowrap}
.event-table .t{color:var(--red);font-weight:700}
.event-table a{border-bottom:1px dashed var(--gold)}
.table-scroll{overflow-x:auto}

/* 页脚 */
footer{padding:40px 0 60px;text-align:center;color:#9a8f7d;font-size:13px;letter-spacing:2px;border-top:1px solid var(--line)}
footer .dvsig{margin-top:10px}
footer .dvsig a{color:var(--gold)}

@media (max-width:900px){
  .summary-grid,.bg-grid{grid-template-columns:1fr}
  .hero h1{font-size:38px;letter-spacing:12px;text-indent:12px}
  #graphBox{height:520px}
}