/* ============================================================
   《三国志与乱世英雄史诗》数字课程门户 · 视觉规范
   三色主视觉：玄墨 #0B0B0D / 暗金 #C9A227 / 朱红 #C63C26
   字体：Noto Serif SC（中文衬线）/ Cinzel（拉丁展示）
        Ma Shan Zheng（书法点缀）/ JetBrains Mono（标签）
   ============================================================ */

:root{
  --ink:#0b0b0d;          /* 玄墨：全站底色 */
  --ink-2:#121216;        /* 玄墨·浮层 */
  --ink-3:#1a1a21;        /* 玄墨·卡片 */
  --ink-4:#232330;        /* 玄墨·描边加深 */
  --gold:#c9a227;         /* 暗金 */
  --gold-light:#e8c86a;   /* 描金高光 */
  --gold-deep:#8a6d1d;    /* 暗金·沉 */
  --vermilion:#c63c26;    /* 朱红 */
  --vermilion-deep:#8e2a1c;
  --paper:#e9e3d5;        /* 缣帛白：正文 */
  --paper-dim:#a89f8d;    /* 次要文字 */
  --paper-faint:#6f6859;  /* 弱文字 */
  --wu-teal:#3e6b5e;      /* 吴·黛青（功能色） */
  --wei-blue:#5a6b8c;     /* 魏·黛蓝（功能色，仅地图） */
  --hairline:rgba(201,162,39,.22);
  --hairline-soft:rgba(201,162,39,.12);
  --shadow-gold:0 0 40px rgba(201,162,39,.12);
  --radius:14px;
  --ease:cubic-bezier(.22,.9,.28,1);
  --nav-h:68px;
  --font-serif:'Noto Serif SC','Songti SC',serif;
  --font-display:'Cinzel','Noto Serif SC',serif;
  --font-cali:'Ma Shan Zheng',cursive;
  --font-mono:'JetBrains Mono','Noto Serif SC',monospace;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--ink);
  color:var(--paper);
  font-family:var(--font-serif);
  font-size:16px;
  line-height:1.9;
  letter-spacing:.04em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
/* 全局宣纸噪点 + 暗角 */
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(120% 90% at 50% 0%,rgba(201,162,39,.05),transparent 55%),
    radial-gradient(140% 120% at 50% 115%,rgba(198,60,38,.05),transparent 55%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.5;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3CfeColorMatrix values='0 0 0 0 0.78 0 0 0 0 0.66 0 0 0 0 0.42 0 0 0 .035 0'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}
main,header,footer{position:relative;z-index:2}
::selection{background:rgba(201,162,39,.35);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--ink)}
::-webkit-scrollbar-thumb{background:linear-gradient(var(--gold-deep),var(--ink-3));border-radius:6px;border:2px solid var(--ink)}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font-family:inherit;cursor:pointer}
canvas{display:block}

/* ---------- 文字工具 ---------- */
.gold-text{
  background:linear-gradient(160deg,#f7e6ae 0%,var(--gold-light) 28%,var(--gold) 52%,var(--gold-deep) 78%,#f0d98e 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 2px 14px rgba(201,162,39,.28));
}
.mono{font-family:var(--font-mono);letter-spacing:.22em;font-size:.72rem;color:var(--paper-dim);text-transform:uppercase}
.cali{font-family:var(--font-cali);font-weight:400}
.dim{color:var(--paper-dim)}

/* ---------- 导航 ---------- */
.site-nav{
  position:fixed;top:0;left:0;right:0;height:var(--nav-h);z-index:100;
  display:flex;align-items:center;gap:28px;padding:0 clamp(16px,4vw,48px);
  background:linear-gradient(180deg,rgba(11,11,13,.92),rgba(11,11,13,.72));
  backdrop-filter:blur(18px) saturate(1.4);-webkit-backdrop-filter:blur(18px) saturate(1.4);
  border-bottom:1px solid var(--hairline-soft);
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-seal{
  width:40px;height:40px;display:grid;place-items:center;
  background:linear-gradient(150deg,var(--vermilion),var(--vermilion-deep));
  color:#f6e8d8;font-size:15px;line-height:1.05;font-weight:900;letter-spacing:0;
  border-radius:6px;box-shadow:0 3px 14px rgba(198,60,38,.4),inset 0 0 0 1.5px rgba(246,232,216,.5);
  font-family:var(--font-serif);text-align:center;
}
.brand-name{font-weight:900;font-size:1.02rem;letter-spacing:.18em;line-height:1.25}
.brand-name small{display:block;font-family:var(--font-display);font-weight:500;font-size:.55rem;letter-spacing:.3em;color:var(--gold);margin-top:2px}
.site-nav nav{display:flex;gap:clamp(10px,2.2vw,34px);margin-left:auto}
.site-nav nav a{
  font-size:.86rem;letter-spacing:.24em;color:var(--paper-dim);
  padding:6px 2px;position:relative;transition:color .35s;white-space:nowrap;
}
.site-nav nav a::after{
  content:"";position:absolute;left:50%;bottom:0;width:0;height:1.5px;
  background:linear-gradient(90deg,transparent,var(--gold),transparent);
  transition:all .4s var(--ease);transform:translateX(-50%);
}
.site-nav nav a:hover,.site-nav nav a.active{color:var(--gold-light)}
.site-nav nav a.active::after,.site-nav nav a:hover::after{width:100%}
.sound-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--hairline);
  background:rgba(201,162,39,.08);color:var(--gold);font-size:15px;flex-shrink:0;
  transition:all .35s;display:grid;place-items:center;position:relative;
}
.sound-btn:hover{background:rgba(201,162,39,.18);box-shadow:var(--shadow-gold)}
.sound-btn.on{color:var(--gold-light);border-color:var(--gold)}
.sound-btn.on::before{
  content:"";position:absolute;inset:-5px;border-radius:50%;
  border:1px solid rgba(201,162,39,.45);animation:soundPulse 1.8s ease-out infinite;
}
@keyframes soundPulse{0%{transform:scale(.85);opacity:.9}100%{transform:scale(1.35);opacity:0}}

/* ---------- 通用区块 ---------- */
.section{max-width:1240px;margin:0 auto;padding:clamp(64px,9vw,120px) clamp(20px,4vw,48px)}
.section-head{text-align:center;margin-bottom:clamp(40px,6vw,72px)}
.section-head .eyebrow{
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.5em;
  color:var(--gold);text-transform:uppercase;
}
.section-head h2{
  font-size:clamp(1.9rem,4.2vw,3rem);font-weight:900;letter-spacing:.14em;
  margin:14px 0 10px;line-height:1.3;
}
.section-head .sub{color:var(--paper-dim);font-size:.95rem;letter-spacing:.12em}
.orn-rule{display:flex;align-items:center;justify-content:center;gap:14px;margin:20px auto 0;max-width:340px}
.orn-rule::before,.orn-rule::after{content:"";flex:1;height:1px;background:linear-gradient(90deg,transparent,var(--hairline))}
.orn-rule::after{background:linear-gradient(90deg,var(--hairline),transparent)}
.orn-rule i{width:7px;height:7px;background:var(--gold);transform:rotate(45deg);box-shadow:0 0 12px rgba(201,162,39,.7)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;padding:13px 34px;
  font-family:var(--font-serif);font-size:.92rem;letter-spacing:.28em;
  border:none;border-radius:3px;transition:all .4s var(--ease);position:relative;overflow:hidden;
}
.btn-gold{
  background:linear-gradient(120deg,var(--gold-deep),var(--gold) 45%,var(--gold-light) 55%,var(--gold));
  background-size:220% 100%;color:#171204;font-weight:700;
  box-shadow:0 6px 24px rgba(201,162,39,.28);
}
.btn-gold:hover{background-position:100% 0;transform:translateY(-2px);box-shadow:0 10px 34px rgba(201,162,39,.4)}
.btn-ghost{
  background:transparent;color:var(--gold-light);
  border:1px solid var(--hairline);backdrop-filter:blur(6px);
}
.btn-ghost:hover{border-color:var(--gold);background:rgba(201,162,39,.08);transform:translateY(-2px)}
.btn-sm{padding:9px 22px;font-size:.8rem}

/* ---------- 卡片 ---------- */
.card{
  background:linear-gradient(165deg,var(--ink-3),var(--ink-2));
  border:1px solid var(--hairline-soft);border-radius:var(--radius);
  transition:all .5s var(--ease);position:relative;
}
.card:hover{border-color:var(--hairline);box-shadow:0 18px 50px rgba(0,0,0,.5),var(--shadow-gold)}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--hairline-soft);
  background:linear-gradient(180deg,transparent,rgba(201,162,39,.04));
  padding:64px clamp(20px,4vw,48px) 40px;text-align:center;
}
.footer-seal{
  width:64px;height:64px;margin:0 auto 20px;display:grid;place-items:center;
  border:1px solid var(--vermilion);border-radius:10px;color:var(--vermilion);
  font-size:17px;font-weight:900;line-height:1.15;transform:rotate(-4deg);
  background:rgba(198,60,38,.06);
}
.site-footer .quote{font-family:var(--font-cali);font-size:1.35rem;color:var(--gold-light);letter-spacing:.2em;margin-bottom:8px}
.site-footer .meta{font-size:.78rem;color:var(--paper-faint);letter-spacing:.16em;line-height:2.2}
.site-footer .meta b{color:var(--paper-dim);font-weight:600}

/* ---------- 入场动效 ---------- */
.rv{opacity:0;transform:translateY(28px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.rv.in{opacity:1;transform:none}
.rv-d1{transition-delay:.12s}.rv-d2{transition-delay:.24s}.rv-d3{transition-delay:.36s}

/* ---------- 首页 Hero ---------- */
.hero{position:relative;height:100vh;min-height:640px;overflow:hidden;background:#060607}
.hero-layer{position:absolute;inset:-6% 0;will-change:transform}
.hero-layer img{width:100%;height:100%;object-fit:cover}
.hero-bg{opacity:.94}
.hero-bg img{animation:heroBreath 26s ease-in-out infinite alternate}
@keyframes heroBreath{from{transform:scale(1)}to{transform:scale(1.08)}}
.hero-horses img{opacity:.9;mix-blend-mode:screen}
.hero-horses{animation:horsesRun 34s linear infinite}
@keyframes horsesRun{
  0%{transform:translateX(-14%) translateY(9%)}
  100%{transform:translateX(10%) translateY(9%)}
}
.hero-blade{right:4%;left:auto;width:clamp(220px,24vw,420px);inset:auto;bottom:-4%;
  mix-blend-mode:screen;opacity:.95;filter:drop-shadow(0 0 40px rgba(201,162,39,.25))}
.hero-veil{position:absolute;inset:0;background:
  linear-gradient(180deg,rgba(6,6,7,.55) 0%,rgba(6,6,7,.12) 34%,rgba(6,6,7,.62) 78%,var(--ink) 100%)}
.hero-center{
  position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;padding:0 20px;
}
.hero-eyebrow{
  font-family:var(--font-mono);letter-spacing:.6em;font-size:.72rem;color:var(--gold);
  text-transform:uppercase;margin-bottom:26px;text-indent:.6em;
}
.hero-title{
  font-size:clamp(2.6rem,8.2vw,6.4rem);font-weight:900;line-height:1.18;letter-spacing:.12em;
}
.hero-title .line2{
  display:block;font-size:.42em;letter-spacing:.42em;margin-top:20px;color:var(--paper);
  font-weight:600;text-indent:.42em;
}
.hero-quote{margin-top:26px;font-family:var(--font-cali);font-size:clamp(1rem,2vw,1.4rem);color:var(--gold-light);letter-spacing:.24em;opacity:.92}
.hero-cta{margin-top:40px;display:flex;gap:18px;flex-wrap:wrap;justify-content:center}
.hero-side{
  position:absolute;top:50%;transform:translateY(-50%);writing-mode:vertical-rl;
  font-family:var(--font-serif);letter-spacing:.5em;font-size:.8rem;color:rgba(233,227,213,.4);
  border-right:1px solid var(--hairline-soft);padding-right:14px;
}
.hero-side.l{left:clamp(14px,3vw,40px)}.hero-side.r{right:clamp(14px,3vw,40px);border-right:none;border-left:1px solid var(--hairline-soft);padding-left:14px;padding-right:0}
.scroll-cue{
  position:absolute;bottom:26px;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:8px;color:var(--paper-faint);
  font-family:var(--font-mono);font-size:.62rem;letter-spacing:.4em;
}
.scroll-cue::after{content:"";width:1px;height:44px;background:linear-gradient(180deg,var(--gold),transparent);animation:cueDrop 2s var(--ease) infinite}
@keyframes cueDrop{0%{transform:scaleY(0);transform-origin:top}55%{transform:scaleY(1);transform-origin:top}56%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* 旌旗 */
.flags{position:absolute;top:0;left:0;right:0;height:100%;pointer-events:none;overflow:hidden}
.flag{
  position:absolute;top:-6px;width:52px;height:150px;transform-origin:top center;
  clip-path:polygon(0 0,100% 0,100% 82%,50% 100%,0 82%);
  display:flex;align-items:center;justify-content:center;padding-bottom:26px;
  font-weight:900;font-size:22px;color:#f3e2c2;writing-mode:vertical-rl;letter-spacing:.3em;
  animation:flagWave 3.6s ease-in-out infinite;filter:drop-shadow(0 8px 18px rgba(0,0,0,.5));
}
.flag::before{content:"";position:absolute;inset:0;background:linear-gradient(105deg,transparent 30%,rgba(255,255,255,.16) 46%,transparent 60%);animation:flagSheen 3.6s linear infinite}
.flag.f-shu{background:linear-gradient(180deg,#a83420,#6e1f12);left:12%;animation-delay:.2s}
.flag.f-wei{background:linear-gradient(180deg,#3f4a63,#252c3d);left:34%;height:120px;animation-delay:1.1s}
.flag.f-wu{background:linear-gradient(180deg,#2f5a4d,#1b352d);right:30%;height:132px;animation-delay:.7s}
.flag.f-han{background:linear-gradient(180deg,#8a6d1d,#5c470f);right:10%;animation-delay:1.6s}
@keyframes flagWave{0%,100%{transform:rotate(-3deg) skewX(0)}30%{transform:rotate(2.4deg) skewX(-4deg)}65%{transform:rotate(-1.6deg) skewX(3deg)}}
@keyframes flagSheen{from{transform:translateX(-120%)}to{transform:translateX(120%)}}

/* 入场门帘 */
.gate{
  position:fixed;inset:0;z-index:200;background:
    radial-gradient(90% 70% at 50% 42%,rgba(201,162,39,.1),transparent 60%),#060607;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:26px;
  transition:opacity 1.1s var(--ease),visibility 1.1s;
}
.gate.open{opacity:0;visibility:hidden}
.gate-seal{
  width:88px;height:88px;border:1px solid var(--vermilion);border-radius:14px;
  display:grid;place-items:center;color:#f0d9c2;font-size:26px;font-weight:900;line-height:1.2;
  background:linear-gradient(150deg,rgba(198,60,38,.28),rgba(198,60,38,.08));
  box-shadow:0 0 60px rgba(198,60,38,.25);animation:gateSeal 3s ease-in-out infinite;
}
@keyframes gateSeal{0%,100%{transform:rotate(-3deg) scale(1)}50%{transform:rotate(2deg) scale(1.05)}}
.gate h1{font-size:clamp(1.5rem,3.4vw,2.4rem);letter-spacing:.3em;font-weight:900}
.gate p{color:var(--paper-dim);font-size:.85rem;letter-spacing:.2em}

/* 疆域画布 */
.territory-wrap{position:relative;background:linear-gradient(180deg,var(--ink),#0d0d12 60%,var(--ink));}
#territory{width:100%;height:560px}
.territory-legend{display:flex;gap:26px;justify-content:center;margin-top:-34px;padding-bottom:26px;flex-wrap:wrap}
.tl-item{display:flex;align-items:center;gap:9px;font-size:.82rem;letter-spacing:.2em;color:var(--paper-dim)}
.tl-dot{width:10px;height:10px;border-radius:50%;box-shadow:0 0 12px currentColor}

/* 数据带 */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1px;background:var(--hairline-soft);border:1px solid var(--hairline-soft)}
.stat{background:var(--ink-2);padding:38px 24px;text-align:center;transition:background .4s}
.stat:hover{background:var(--ink-3)}
.stat .num{font-family:var(--font-display);font-size:clamp(1.9rem,3.6vw,2.8rem);font-weight:700;line-height:1.1}
.stat .lab{margin-top:10px;font-size:.8rem;letter-spacing:.3em;color:var(--paper-dim)}

/* 章节预览横卡 */
.ch-preview{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:22px}
.ch-mini{overflow:hidden;cursor:pointer}
.ch-mini .img{height:170px;overflow:hidden;position:relative}
.ch-mini .img img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ease)}
.ch-mini:hover .img img{transform:scale(1.09)}
.ch-mini .img::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(11,11,13,.86))}
.ch-mini .no{
  position:absolute;top:12px;left:14px;z-index:2;font-family:var(--font-display);
  font-size:.7rem;letter-spacing:.3em;color:var(--gold-light);
  border:1px solid var(--hairline);padding:4px 10px;background:rgba(11,11,13,.6);backdrop-filter:blur(6px);
}
.ch-mini .body{padding:18px 20px 22px}
.ch-mini h3{font-size:1.02rem;letter-spacing:.1em;font-weight:700}
.ch-mini p{margin-top:8px;font-size:.82rem;color:var(--paper-dim);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- 章节时间轴 ---------- */
.timeline{position:relative;max-width:1080px;margin:0 auto}
.timeline::before{
  content:"";position:absolute;left:50%;top:0;bottom:0;width:2px;transform:translateX(-50%);
  background:linear-gradient(180deg,transparent,var(--gold-deep) 8%,var(--gold-deep) 92%,transparent);
  opacity:.55;
}
.tl-node{position:relative;display:flex;margin-bottom:clamp(48px,7vw,84px)}
.tl-node:nth-child(even){flex-direction:row-reverse}
.tl-node .era{
  position:absolute;left:50%;top:14px;transform:translateX(-50%);z-index:3;
  background:var(--ink);border:1px solid var(--gold-deep);color:var(--gold-light);
  font-family:var(--font-display);font-size:.68rem;letter-spacing:.24em;
  padding:6px 16px;white-space:nowrap;box-shadow:0 0 24px rgba(201,162,39,.18);
}
.tl-card{
  width:calc(50% - 56px);overflow:hidden;cursor:pointer;
  transform-style:preserve-3d;transition:transform .5s var(--ease),box-shadow .5s,border-color .5s;
}
.tl-card .img{height:210px;overflow:hidden;position:relative}
.tl-card .img img{width:100%;height:100%;object-fit:cover;transition:transform 1.3s var(--ease)}
.tl-card:hover .img img{transform:scale(1.08)}
.tl-card .img::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 30%,rgba(11,11,13,.9))}
.tl-card .body{padding:22px 26px 26px}
.tl-card .ch-no{font-family:var(--font-display);font-size:.66rem;letter-spacing:.34em;color:var(--gold)}
.tl-card h3{font-size:1.28rem;letter-spacing:.1em;margin:8px 0 10px;font-weight:900}
.tl-card p{font-size:.85rem;color:var(--paper-dim)}
.tl-card .tags{margin-top:14px;display:flex;gap:8px;flex-wrap:wrap}
.tag{
  font-size:.68rem;letter-spacing:.14em;color:var(--gold-light);
  border:1px solid var(--hairline);padding:3px 10px;background:rgba(201,162,39,.06);
}
.tag.red{color:#e8937f;border-color:rgba(198,60,38,.4);background:rgba(198,60,38,.07)}

/* ---------- 章节详情 ---------- */
.ch-hero{position:relative;height:56vh;min-height:420px;overflow:hidden;display:flex;align-items:flex-end}
.ch-hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.ch-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,11,13,.34),rgba(11,11,13,.16) 40%,var(--ink) 96%)}
.ch-hero .cap{position:relative;z-index:2;max-width:1240px;margin:0 auto;width:100%;padding:0 clamp(20px,4vw,48px) 44px}
.ch-hero .cap .mono{color:var(--gold-light)}
.ch-hero h1{font-size:clamp(1.9rem,4.6vw,3.2rem);font-weight:900;letter-spacing:.14em;margin:12px 0 12px;line-height:1.3}
.ch-hero .desc{max-width:640px;color:var(--paper-dim);font-size:.92rem}
.detail-grid{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:clamp(28px,4vw,56px)}
.prose h2{font-size:1.3rem;letter-spacing:.14em;font-weight:900;margin:44px 0 16px;display:flex;align-items:center;gap:12px}
.prose h2:first-child{margin-top:0}
.prose h2::before{content:"◆";color:var(--gold);font-size:.7em}
.prose p{color:#cfc8b8;font-size:.95rem;margin-bottom:14px;text-align:justify}
.prose blockquote{
  margin:26px 0;padding:20px 26px;border-left:3px solid var(--gold-deep);
  background:linear-gradient(90deg,rgba(201,162,39,.08),transparent);
  font-family:var(--font-cali);font-size:1.2rem;color:var(--gold-light);letter-spacing:.12em;line-height:2;
}
.prose blockquote cite{display:block;font-family:var(--font-serif);font-size:.75rem;color:var(--paper-faint);letter-spacing:.2em;margin-top:8px}
.q-list{list-style:none;margin-top:10px}
.q-list li{padding:13px 0 13px 30px;border-bottom:1px dashed var(--hairline-soft);position:relative;color:#cfc8b8;font-size:.9rem}
.q-list li::before{content:"問";position:absolute;left:0;top:14px;width:20px;height:20px;font-size:.62rem;display:grid;place-items:center;border:1px solid var(--vermilion);color:#e8937f}

/* 侧栏 */
.side-box{padding:24px;margin-bottom:22px}
.side-box h4{font-size:.92rem;letter-spacing:.26em;color:var(--gold-light);margin-bottom:16px;display:flex;align-items:center;gap:10px}
.side-box h4::after{content:"";flex:1;height:1px;background:var(--hairline-soft)}
.tts-line{display:flex;align-items:center;gap:14px}
.tts-btn{
  width:52px;height:52px;border-radius:50%;flex-shrink:0;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--gold),var(--gold-deep));color:#171204;border:none;font-size:18px;
  box-shadow:0 6px 22px rgba(201,162,39,.3);transition:all .35s;
}
.tts-btn:hover{transform:scale(1.06)}
.tts-btn.playing{animation:ttsPulse 1.6s ease-in-out infinite}
@keyframes ttsPulse{0%,100%{box-shadow:0 0 0 0 rgba(201,162,39,.5)}55%{box-shadow:0 0 0 14px rgba(201,162,39,0)}}
.tts-meta{font-size:.78rem;color:var(--paper-dim);letter-spacing:.1em}
.pers-list{display:flex;flex-wrap:wrap;gap:9px}
.pers{
  padding:7px 14px;border:1px solid var(--hairline);font-size:.8rem;letter-spacing:.14em;
  color:var(--paper);background:rgba(201,162,39,.05);transition:all .3s;
}
.pers:hover{border-color:var(--gold);color:var(--gold-light)}
.mini-link{display:flex;align-items:center;gap:10px;padding:10px 0;border-bottom:1px dashed var(--hairline-soft);font-size:.85rem;color:var(--paper-dim);transition:color .3s}
.mini-link:hover{color:var(--gold-light)}
.mini-link .dot{width:7px;height:7px;border-radius:50%;flex-shrink:0}

/* 动态画卷（影院） */
.cinema-mask{position:fixed;inset:0;z-index:300;background:rgba(4,4,5,.94);backdrop-filter:blur(10px);display:none;align-items:center;justify-content:center;padding:30px}
.cinema-mask.show{display:flex}
.cinema{width:min(1080px,96vw)}
.cinema-screen{position:relative;aspect-ratio:16/9;background:#000;overflow:hidden;border:1px solid var(--hairline-soft);box-shadow:0 30px 90px rgba(0,0,0,.8)}
.cinema-screen img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.cinema-screen.kb-a img{animation:kbA 18s ease-in-out infinite alternate}
.cinema-screen.kb-b img{animation:kbB 18s ease-in-out infinite alternate}
@keyframes kbA{from{transform:scale(1) translate(0,0)}to{transform:scale(1.22) translate(-3%,2%)}}
@keyframes kbB{from{transform:scale(1.22) translate(2%,-2%)}to{transform:scale(1) translate(0,0)}}
.cinema-bars::before,.cinema-bars::after{content:"";position:absolute;left:0;right:0;height:9%;background:#000;z-index:3}
.cinema-bars::before{top:0}.cinema-bars::after{bottom:0}
.cinema-cap{
  position:absolute;left:0;right:0;bottom:13%;z-index:4;text-align:center;padding:0 8%;
  font-size:clamp(.85rem,1.7vw,1.15rem);letter-spacing:.24em;color:#f3ead6;
  text-shadow:0 2px 14px rgba(0,0,0,.9);opacity:0;transition:opacity 1s;
}
.cinema-cap.show{opacity:1}
.cinema-embers{position:absolute;inset:0;z-index:2;pointer-events:none}
.cinema-ctrl{display:flex;align-items:center;gap:16px;margin-top:18px}
.cinema-ctrl .bar{flex:1;height:3px;background:rgba(201,162,39,.15);position:relative;cursor:pointer}
.cinema-ctrl .bar i{position:absolute;left:0;top:0;bottom:0;background:linear-gradient(90deg,var(--gold-deep),var(--gold-light));width:0}
.cinema-close{position:absolute;top:18px;right:26px;z-index:5;background:none;border:1px solid var(--hairline);color:var(--gold-light);width:44px;height:44px;border-radius:50%;font-size:16px;transition:all .3s}
.cinema-close:hover{border-color:var(--gold);transform:rotate(90deg)}

/* zoom-in 文物细赏 */
.zoom-block{margin-top:14px}
.zoom-stage{
  position:relative;overflow:hidden;border:1px solid var(--hairline-soft);border-radius:8px;
  background:#08080a;cursor:grab;aspect-ratio:4/3;
}
.zoom-stage:active{cursor:grabbing}
.zoom-stage img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .12s linear;transform-origin:0 0}
.zoom-tip{position:absolute;left:12px;bottom:12px;z-index:4;font-family:var(--font-mono);font-size:.62rem;letter-spacing:.2em;color:var(--gold-light);background:rgba(11,11,13,.7);padding:5px 12px;backdrop-filter:blur(4px)}
.zoom-reset{position:absolute;right:12px;top:12px;z-index:4;background:rgba(11,11,13,.7);border:1px solid var(--hairline);color:var(--gold-light);font-size:.68rem;letter-spacing:.2em;padding:6px 14px;backdrop-filter:blur(4px)}
.hotspot{
  position:absolute;z-index:5;width:26px;height:26px;border-radius:50%;transform:translate(-50%,-50%);
  border:1.5px solid var(--gold-light);background:rgba(201,162,39,.25);cursor:pointer;
  animation:spotPing 2.4s ease-out infinite;
}
.hotspot::after{content:attr(data-label);
  position:absolute;left:34px;top:50%;transform:translateY(-50%);white-space:nowrap;
  font-size:.68rem;letter-spacing:.14em;color:#f3ead6;background:rgba(11,11,13,.85);
  padding:4px 12px;border:1px solid var(--hairline);opacity:0;transition:opacity .3s;pointer-events:none}
.hotspot:hover::after{opacity:1}
@keyframes spotPing{0%{box-shadow:0 0 0 0 rgba(201,162,39,.6)}70%{box-shadow:0 0 0 16px rgba(201,162,39,0)}100%{box-shadow:0 0 0 0 rgba(201,162,39,0)}}
.zoom-thumbs{display:flex;gap:10px;margin-top:12px}
.zoom-thumbs button{width:74px;height:54px;padding:0;border:1px solid var(--hairline-soft);background:none;overflow:hidden;opacity:.6;transition:all .3s}
.zoom-thumbs button.on,.zoom-thumbs button:hover{opacity:1;border-color:var(--gold)}
.zoom-thumbs img{width:100%;height:100%;object-fit:cover}

/* ---------- 地图页 ---------- */
.map-shell{display:grid;grid-template-columns:300px minmax(0,1fr);height:calc(100vh - var(--nav-h));margin-top:var(--nav-h)}
.map-side{border-right:1px solid var(--hairline-soft);overflow-y:auto;background:var(--ink-2)}
.map-side .hd{padding:22px 22px 14px;border-bottom:1px solid var(--hairline-soft)}
.map-side h2{font-size:1.05rem;letter-spacing:.2em;font-weight:900}
.map-side .mono{margin-top:6px;display:block}
.map-filter{display:flex;gap:6px;padding:14px 22px;flex-wrap:wrap}
.map-filter button{
  font-size:.7rem;letter-spacing:.16em;padding:5px 12px;background:none;
  border:1px solid var(--hairline-soft);color:var(--paper-dim);transition:all .3s;
}
.map-filter button.on{border-color:var(--gold);color:var(--gold-light);background:rgba(201,162,39,.08)}
.place-item{padding:13px 22px;border-bottom:1px dashed rgba(201,162,39,.08);cursor:pointer;transition:background .3s;display:flex;gap:12px;align-items:baseline}
.place-item:hover{background:rgba(201,162,39,.05)}
.place-item .nm{font-size:.92rem;letter-spacing:.1em;font-weight:600}
.place-item .tp{font-size:.66rem;letter-spacing:.12em;color:var(--paper-faint);font-family:var(--font-mono);margin-left:auto}
.place-item .state-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0;position:relative;top:1px}
#map{width:100%;height:100%;background:#0d0d12}
.leaflet-container{font-family:var(--font-serif)}
.marker-node{position:relative}
.marker-node .core{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:14px;height:14px;border-radius:50%;border:2px solid rgba(243,234,214,.85);
  box-shadow:0 0 14px currentColor;background:currentColor;
}
.marker-node.capital .core{width:18px;height:18px;border-radius:4px;transform:translate(-50%,-50%) rotate(45deg)}
.marker-node.battle .core{clip-path:polygon(50% 0,100% 50%,50% 100%,0 50%);border-radius:0;border:none;width:17px;height:17px}
.marker-node .ring{position:absolute;left:50%;top:50%;width:14px;height:14px;transform:translate(-50%,-50%);border-radius:50%;border:1px solid currentColor;animation:spotPing 2.6s ease-out infinite}
.marker-label{
  position:absolute;left:50%;top:-26px;transform:translateX(-50%);white-space:nowrap;
  font-size:.72rem;letter-spacing:.2em;color:#f3ead6;text-shadow:0 2px 8px #000,0 0 4px #000;font-family:var(--font-serif);
}
.place-popup .leaflet-popup-content-wrapper{
  background:linear-gradient(165deg,var(--ink-3),#101014);color:var(--paper);
  border:1px solid var(--hairline);border-radius:10px;box-shadow:0 24px 60px rgba(0,0,0,.6);
}
.place-popup .leaflet-popup-tip{background:var(--ink-3)}
.place-popup .leaflet-popup-content{margin:0;width:300px!important}
.pc{padding:20px 22px}
.pc .state-line{display:flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:.62rem;letter-spacing:.28em;color:var(--gold);text-transform:uppercase}
.pc .state-line i{width:8px;height:8px;border-radius:50%;background:currentColor;box-shadow:0 0 10px currentColor}
.pc h3{font-size:1.24rem;letter-spacing:.16em;font-weight:900;margin:8px 0 10px}
.pc p{font-size:.8rem;color:#cfc8b8;line-height:1.9;text-align:justify}
.pc .row{margin-top:12px;padding-top:12px;border-top:1px dashed var(--hairline-soft)}
.pc .row b{display:block;font-size:.66rem;letter-spacing:.3em;color:var(--gold);margin-bottom:4px;font-weight:600}
.pc .go{display:inline-block;margin-top:14px;font-size:.76rem;letter-spacing:.22em;color:var(--gold-light);border:1px solid var(--hairline);padding:7px 18px;transition:all .3s}
.pc .go:hover{background:rgba(201,162,39,.1);border-color:var(--gold)}
.map-legend{
  position:absolute;right:18px;bottom:24px;z-index:500;background:rgba(11,11,13,.85);
  border:1px solid var(--hairline-soft);padding:14px 18px;backdrop-filter:blur(8px);font-size:.72rem;color:var(--paper-dim);letter-spacing:.14em;line-height:2.1;
}

/* ---------- 文物长廊 ---------- */
.relic-filters{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-bottom:44px}
.relic-filters button{
  padding:8px 22px;background:none;border:1px solid var(--hairline-soft);color:var(--paper-dim);
  font-size:.8rem;letter-spacing:.22em;transition:all .35s;
}
.relic-filters button.on{border-color:var(--gold);color:var(--gold-light);background:rgba(201,162,39,.08)}
.relic-masonry{columns:4 250px;column-gap:20px}
.relic-card{
  break-inside:avoid;margin-bottom:20px;overflow:hidden;cursor:pointer;
  transform:translateY(0);
}
.relic-card .ph{position:relative;overflow:hidden;background:#0e0e12}
.relic-card .ph img,.relic-card .ph svg{width:100%;height:auto;transition:transform 1.1s var(--ease),filter .8s}
.relic-card:hover .ph img,.relic-card:hover .ph svg{transform:scale(1.06);filter:brightness(1.12)}
.relic-card .ph::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(11,11,13,.8));pointer-events:none}
.relic-card .nm{
  position:absolute;left:16px;bottom:12px;z-index:2;font-size:.95rem;letter-spacing:.14em;font-weight:700;
  text-shadow:0 2px 10px rgba(0,0,0,.9);
}
.relic-card .era{
  position:absolute;top:12px;right:12px;z-index:2;font-family:var(--font-mono);font-size:.6rem;
  letter-spacing:.2em;color:var(--gold-light);background:rgba(11,11,13,.66);border:1px solid var(--hairline);
  padding:3px 10px;backdrop-filter:blur(6px);
}
.relic-card .info{padding:14px 16px 16px}
.relic-card .info p{font-size:.78rem;color:var(--paper-dim);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* 翻转卡 */
.flip-mask{position:fixed;inset:0;z-index:300;background:rgba(4,4,5,.92);backdrop-filter:blur(12px);display:none;align-items:center;justify-content:center;padding:26px}
.flip-mask.show{display:flex}
.flip-scene{width:min(880px,94vw);perspective:1800px}
.flip-inner{position:relative;width:100%;min-height:460px;transform-style:preserve-3d;transition:transform 1s cubic-bezier(.3,.9,.3,1)}
.flip-scene.flipped .flip-inner{transform:rotateY(180deg)}
.flip-face{
  position:absolute;inset:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;
  border:1px solid var(--hairline);border-radius:16px;overflow:hidden;
  background:linear-gradient(165deg,var(--ink-3),#0e0e12);
  display:flex;flex-direction:column;
}
.flip-back{transform:rotateY(180deg)}
.flip-face .img{flex:1;min-height:0;display:grid;place-items:center;background:#08080a;position:relative}
.flip-face .img img,.flip-face .img svg{max-height:100%;width:100%;object-fit:contain}
.flip-face .cap{padding:20px 26px;border-top:1px solid var(--hairline-soft)}
.flip-face .cap h3{font-size:1.3rem;letter-spacing:.18em;font-weight:900}
.flip-face .cap .hint{font-family:var(--font-mono);font-size:.6rem;letter-spacing:.3em;color:var(--gold);margin-top:8px;text-transform:uppercase}
.flip-back .scroll{overflow-y:auto;padding:clamp(24px,4vw,44px);height:100%}
.flip-back h3{font-size:1.5rem;letter-spacing:.18em;font-weight:900;margin-bottom:6px}
.flip-back .era-line{font-family:var(--font-mono);font-size:.64rem;letter-spacing:.3em;color:var(--gold);text-transform:uppercase}
.spec-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--hairline-soft);margin:22px 0;border:1px solid var(--hairline-soft)}
.spec{background:var(--ink-2);padding:14px 18px}
.spec b{display:block;font-size:.64rem;letter-spacing:.3em;color:var(--gold);font-weight:600;margin-bottom:5px}
.spec span{font-size:.84rem;color:#d8d1c0}
.flip-back .story{font-size:.88rem;color:#cfc8b8;text-align:justify}
.flip-close{position:absolute;top:16px;right:16px;z-index:6;background:rgba(11,11,13,.75);border:1px solid var(--hairline);color:var(--gold-light);width:42px;height:42px;border-radius:50%;font-size:15px;transition:all .3s}
.flip-close:hover{transform:rotate(90deg);border-color:var(--gold)}
.flip-hint{text-align:center;margin-top:18px;font-family:var(--font-mono);font-size:.62rem;letter-spacing:.34em;color:var(--paper-faint);text-transform:uppercase}

/* ---------- AI 讲解员 ---------- */
.guide-fab{
  position:fixed;right:26px;bottom:26px;z-index:260;width:74px;height:74px;border-radius:50%;
  border:2px solid var(--gold-deep);padding:3px;background:var(--ink);cursor:pointer;
  box-shadow:0 10px 34px rgba(0,0,0,.6),0 0 0 0 rgba(201,162,39,.45);
  animation:fabBreath 3.4s ease-in-out infinite;transition:transform .35s;
}
.guide-fab:hover{transform:scale(1.08)}
@keyframes fabBreath{0%,100%{box-shadow:0 10px 34px rgba(0,0,0,.6),0 0 0 0 rgba(201,162,39,.4)}55%{box-shadow:0 10px 34px rgba(0,0,0,.6),0 0 0 16px rgba(201,162,39,0)}}
.guide-fab img{width:100%;height:100%;border-radius:50%;object-fit:cover}
.guide-fab .tip{
  position:absolute;right:86px;top:50%;transform:translateY(-50%);white-space:nowrap;
  background:rgba(18,18,22,.92);border:1px solid var(--hairline);color:var(--gold-light);
  font-size:.74rem;letter-spacing:.2em;padding:8px 16px;backdrop-filter:blur(8px);
  opacity:0;pointer-events:none;transition:opacity .4s;
}
.guide-fab:hover .tip{opacity:1}
.guide-panel{
  position:fixed;right:26px;bottom:112px;z-index:259;width:min(400px,calc(100vw - 40px));
  height:min(560px,calc(100vh - 150px));display:flex;flex-direction:column;
  background:linear-gradient(170deg,rgba(24,24,31,.96),rgba(13,13,17,.97));
  border:1px solid var(--hairline);border-radius:16px;box-shadow:0 30px 80px rgba(0,0,0,.65);
  backdrop-filter:blur(20px);overflow:hidden;
  opacity:0;visibility:hidden;transform:translateY(20px) scale(.97);
  transition:all .45s var(--ease);
}
.guide-panel.show{opacity:1;visibility:visible;transform:none}
.guide-head{display:flex;align-items:center;gap:12px;padding:16px 18px;border-bottom:1px solid var(--hairline-soft);background:rgba(201,162,39,.05)}
.guide-head img{width:44px;height:44px;border-radius:50%;border:1px solid var(--gold-deep);object-fit:cover}
.guide-head .nm{font-size:.95rem;letter-spacing:.16em;font-weight:700}
.guide-head .st{font-size:.64rem;letter-spacing:.22em;color:var(--gold);font-family:var(--font-mono)}
.guide-head .st::before{content:"●";margin-right:6px;animation:blink 2s infinite}
@keyframes blink{50%{opacity:.3}}
.guide-body{flex:1;overflow-y:auto;padding:18px;display:flex;flex-direction:column;gap:14px}
.g-msg{max-width:86%;font-size:.84rem;line-height:1.85;letter-spacing:.05em}
.g-msg.bot{
  align-self:flex-start;background:rgba(201,162,39,.07);border:1px solid var(--hairline-soft);
  padding:12px 16px;border-radius:4px 14px 14px 14px;color:#ddd5c3;
}
.g-msg.user{
  align-self:flex-end;background:linear-gradient(140deg,var(--vermilion),var(--vermilion-deep));
  padding:10px 16px;border-radius:14px 4px 14px 14px;color:#f8ece0;
}
.g-msg .caret{display:inline-block;width:7px;height:14px;background:var(--gold-light);margin-left:3px;vertical-align:-2px;animation:blink .8s infinite}
.g-chips{display:flex;flex-wrap:wrap;gap:8px;padding:0 18px 12px}
.g-chips button{
  font-size:.72rem;letter-spacing:.1em;padding:6px 13px;background:none;
  border:1px solid var(--hairline-soft);color:var(--paper-dim);transition:all .3s;
}
.g-chips button:hover{border-color:var(--gold);color:var(--gold-light)}
.guide-input{display:flex;gap:10px;padding:14px;border-top:1px solid var(--hairline-soft)}
.guide-input input{
  flex:1;background:rgba(11,11,13,.7);border:1px solid var(--hairline-soft);color:var(--paper);
  padding:11px 16px;font-family:var(--font-serif);font-size:.86rem;letter-spacing:.06em;outline:none;transition:border-color .3s;
}
.guide-input input:focus{border-color:var(--gold)}
.guide-input button{
  width:46px;background:linear-gradient(140deg,var(--gold),var(--gold-deep));border:none;color:#171204;
  font-size:15px;transition:all .3s;
}
.guide-input button:hover{filter:brightness(1.15)}
.g-voice-toggle{margin-left:6px;width:46px;background:none;border:1px solid var(--hairline-soft);color:var(--paper-dim);font-size:14px;transition:all .3s}
.g-voice-toggle.on{border-color:var(--gold);color:var(--gold-light)}

/* ---------- 档案馆 ---------- */
.dl-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}
.dl-card{padding:34px 30px;display:flex;flex-direction:column;gap:14px}
.dl-card .icon{
  width:58px;height:58px;display:grid;place-items:center;font-family:var(--font-display);font-weight:700;
  font-size:.8rem;letter-spacing:.1em;border:1px solid var(--hairline);color:var(--gold-light);
  background:rgba(201,162,39,.06);
}
.dl-card h3{font-size:1.15rem;letter-spacing:.12em;font-weight:900}
.dl-card p{font-size:.84rem;color:var(--paper-dim);flex:1}
.dl-card .meta{font-family:var(--font-mono);font-size:.64rem;letter-spacing:.22em;color:var(--paper-faint)}
.seed-table{width:100%;border-collapse:collapse;font-size:.84rem}
.seed-table th,.seed-table td{border:1px solid var(--hairline-soft);padding:12px 18px;text-align:left}
.seed-table th{background:rgba(201,162,39,.06);color:var(--gold-light);font-weight:600;letter-spacing:.2em;font-size:.76rem}
.seed-table td{color:#cfc8b8}
.seed-table code{font-family:var(--font-mono);font-size:.76rem;color:var(--gold-light)}

/* ---------- 响应式 ---------- */
@media (max-width:960px){
  .detail-grid{grid-template-columns:1fr}
  .map-shell{grid-template-columns:1fr;grid-template-rows:auto 1fr;height:auto}
  .map-side{max-height:34vh}
  #map{height:58vh}
  .timeline::before{left:18px}
  .tl-node,.tl-node:nth-child(even){flex-direction:row}
  .tl-card{width:calc(100% - 56px);margin-left:auto}
  .tl-node .era{left:18px;transform:translateX(-50%)}
  .hero-side{display:none}
}
@media (max-width:640px){
  .site-nav{gap:12px}
  .site-nav nav{gap:10px}
  .site-nav nav a{font-size:.72rem;letter-spacing:.12em}
  .brand-name{display:none}
  .flag{display:none}
  .relic-masonry{columns:2 150px}
  .guide-panel{right:12px}
  .guide-fab{right:14px;bottom:14px;width:62px;height:62px}
}