:root{
  --bg:#f4f5f7; --panel:#ffffff; --ink:#1f2329; --ink-2:#5b6472; --ink-3:#8a94a6;
  --line:#e6e9ef; --brand:#2f6bff; --brand-ink:#1e4fd6; --accent:#f5a623;
  --radius:10px; --shadow:0 2px 10px rgba(20,30,60,.06);
  --sidebar-w:288px;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans CJK SC","Microsoft YaHei",sans-serif;
  color:var(--ink);background:var(--bg);-webkit-text-size-adjust:100%;
}
.layout{display:flex;height:100vh;height:100dvh;overflow:hidden}

/* ---------- 左侧目录 ---------- */
.sidebar{
  width:var(--sidebar-w);flex:0 0 var(--sidebar-w);background:var(--panel);
  border-right:1px solid var(--line);display:flex;flex-direction:column;min-height:0;
}
.brand{padding:16px 18px 10px}
.brand-title{font-size:18px;font-weight:700;letter-spacing:.5px}
.brand-sub{font-size:12px;color:var(--ink-3);margin-top:3px}
.search-wrap{padding:6px 14px 10px}
.search{
  width:100%;padding:8px 12px;border:1px solid var(--line);border-radius:8px;
  font-size:13px;background:#f8f9fb;outline:none;color:var(--ink);
}
.search:focus{border-color:var(--brand);background:#fff}
.content-search{position:relative;padding-top:0}
.search-results{
  position:absolute;left:14px;right:14px;top:100%;z-index:30;max-height:52vh;overflow-y:auto;
  background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:0 10px 30px rgba(20,30,60,.16);
  padding:6px;
}
.sr-item{display:block;width:100%;text-align:left;border:0;background:none;cursor:pointer;
  padding:8px 10px;border-radius:8px;font-size:13px;color:var(--ink-2);line-height:1.4}
.sr-item:hover,.sr-item.active{background:#eef3ff}
.sr-item .sr-ch{display:block;font-size:11.5px;color:var(--brand-ink);font-weight:600;margin-bottom:2px}
.sr-item .sr-ch-title{color:#a15a00}
.sr-item .sr-ch-title::before{content:"§ ";opacity:.6}
.sr-item .sr-snip{color:var(--ink-2)}
.sr-item .sr-snip mark{background:#ffe58a;color:var(--ink);padding:0 1px;border-radius:2px}
.sr-empty{color:var(--ink-3);font-size:13px;padding:10px 12px}
.toc{flex:1;overflow-y:auto;padding:4px 8px 12px;min-height:0}
.toc-item{
  display:block;width:100%;text-align:left;border:0;background:none;cursor:pointer;
  padding:9px 12px;border-radius:8px;font-size:13.5px;color:var(--ink-2);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:1.35;
}
.toc-item:hover{background:#f2f4f8;color:var(--ink)}
.toc-item.active{background:var(--brand);color:#fff;font-weight:600}
.toc-empty{color:var(--ink-3);font-size:13px;padding:12px}

/* ---------- 按角色筛选 ---------- */
.char-wrap{padding-top:0;display:flex;gap:6px;align-items:center}
.char-select{
  flex:1;min-width:0;appearance:none;-webkit-appearance:none;cursor:pointer;
  padding-right:26px;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'><path fill='%238a94a6' d='M0 0l5 6 5-6z'/></svg>");
  background-repeat:no-repeat;background-position:right 10px center;
}
.char-clear{
  flex:0 0 30px;height:30px;border:1px solid var(--line);background:#fff;border-radius:8px;
  color:var(--ink-3);cursor:pointer;font-size:13px;line-height:1;
}
.char-clear:hover{border-color:#f0c9c9;color:#c0392b}
.char-hint{
  padding:0 16px 8px;font-size:12px;color:var(--brand-ink);line-height:1.4;
}
.char-hint b{color:var(--brand-ink)}
.toc-item{cursor:pointer}
.toc-item .toc-star{
  color:var(--accent);font-size:12px;margin-right:5px;flex:0 0 auto;
}
.toc-item.starred{background:#fff8e8;color:var(--ink);font-weight:600}
.toc-item.starred:hover{background:#fff2d6}
.toc-item.starred.active{background:var(--brand);color:#fff}
.toc-item.starred.active .toc-star{color:#ffe58a}
.sidebar-foot{border-top:1px solid var(--line);padding:9px 16px;font-size:12px;color:var(--ink-3)}
.pos-label{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block}

/* ---------- 正文 ---------- */
.main{flex:1;display:flex;flex-direction:column;min-width:0;min-height:0;background:var(--bg)}
.topbar{
  height:54px;flex:0 0 54px;display:flex;align-items:center;gap:12px;
  padding:0 16px;background:var(--panel);border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:5;
}
.hamburger{
  display:none;border:1px solid var(--line);background:#fff;border-radius:8px;
  width:38px;height:34px;font-size:17px;cursor:pointer;color:var(--ink-2);
}
.crumb{font-size:13px;color:var(--ink-3);flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.crumb-root{color:var(--ink-2)}
.crumb-sep{margin:0 6px;color:var(--line)}
#crumbCh{color:var(--ink);font-weight:600}
.topbar-actions{display:flex;gap:8px}
.navbtn{
  border:1px solid var(--line);background:#fff;border-radius:8px;padding:6px 12px;
  font-size:13px;cursor:pointer;color:var(--ink-2);
}
.navbtn:hover{border-color:var(--brand);color:var(--brand-ink)}
.navbtn:disabled{opacity:.45;cursor:default}

.reader{flex:1;overflow-y:auto;padding:26px 18px 80px;scroll-behavior:smooth}
.ch-title{
  font-size:22px;font-weight:700;margin:6px auto 22px;max-width:720px;
  padding-bottom:12px;border-bottom:2px solid var(--ink);letter-spacing:.5px;
}
.paras{max-width:720px;margin:0 auto}
.paras .para{
  font-family:Georgia,"Noto Serif CJK SC","Songti SC","SimSun",serif;
  font-size:18px;line-height:2.0;color:#23272e;margin:0 0 16px;
  text-indent:2em;word-break:break-word;
}
.paras .para.fig-anchor{}
.kw-hl{background:#ffe58a;color:#7a4b00;border-radius:3px;padding:0 2px;box-shadow:0 0 0 2px #ffe58a}
.ch-end{height:40px}

/* ---------- 登录页 ---------- */
.login-body{
  display:flex;align-items:center;justify-content:center;min-height:100vh;
  background:linear-gradient(135deg,#eef3ff 0%,#f4f5f7 55%,#eaf6f0 100%);
}
.login-card{
  width:340px;max-width:88vw;background:var(--panel);border:1px solid var(--line);
  border-radius:16px;box-shadow:0 12px 40px rgba(20,30,60,.12);padding:30px 26px 22px;
}
.login-brand{text-align:center;margin-bottom:22px}
.login-title{font-size:22px;font-weight:700;letter-spacing:2px;color:var(--ink)}
.login-sub{font-size:12.5px;color:var(--ink-3);margin-top:6px}
.login-error{
  background:#fdecec;color:#c0392b;border:1px solid #f5c6c6;border-radius:8px;
  font-size:13px;padding:8px 12px;margin-bottom:14px;text-align:center;
}
.login-field{display:block;margin-bottom:14px}
.login-field span{display:block;font-size:12.5px;color:var(--ink-2);margin-bottom:6px}
.login-field input{
  width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:9px;
  font-size:14px;background:#f8f9fb;outline:none;color:var(--ink);transition:border-color .15s,background .15s;
}
.login-field input:focus{border-color:var(--brand);background:#fff}
.login-btn{
  width:100%;padding:11px;margin-top:4px;border:0;border-radius:9px;cursor:pointer;
  background:var(--brand);color:#fff;font-size:15px;font-weight:600;letter-spacing:4px;
  transition:background .15s;
}
.login-btn:hover{background:var(--brand-ink)}
.login-btn:active{transform:translateY(1px)}
.login-foot{text-align:center;font-size:11.5px;color:var(--ink-3);margin-top:16px}
/* 顶栏退出 */
.topbar-actions .logout{margin-left:6px;color:var(--ink-3)}
.topbar-actions .logout:hover{color:#c0392b}


/* 插图 */
figure.shot{margin:18px auto 26px;max-width:720px;text-align:center}
figure.shot img{width:100%;max-width:512px;border-radius:12px;display:block;margin:0 auto;box-shadow:var(--shadow)}
figure.shot[data-ratio="16:9"] img{max-width:660px}
figure.shot figcaption{font-size:12.5px;color:var(--ink-3);margin-top:8px;font-style:italic}
.shot-loading{
  margin:18px auto 26px;max-width:512px;display:flex;align-items:center;gap:10px;
  padding:14px 16px;border:1px dashed var(--line);border-radius:12px;background:#fff;
  color:var(--ink-3);font-size:13.5px;
}
.spinner{
  width:16px;height:16px;border:2px solid var(--line);border-top-color:var(--brand);
  border-radius:50%;animation:spin .8s linear infinite;flex:0 0 16px;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- 选中浮动按钮 ---------- */
.float-cta{
  position:fixed;z-index:40;transform:translate(-50%,-118%);display:flex;gap:8px;
}
.float-cta button{
  border:0;border-radius:22px;padding:10px 16px;font-size:14px;font-weight:600;
  color:#fff;cursor:pointer;white-space:nowrap;
}
.float-cta .cta-real{background:var(--brand);box-shadow:0 6px 18px rgba(47,107,255,.38)}
.float-cta .cta-real:hover{background:var(--brand-ink)}
.float-cta .cta-real2{background:#0f9c8c;box-shadow:0 6px 18px rgba(15,156,140,.38)}
.float-cta .cta-real2:hover{background:#0c8377}
.float-cta .cta-ultra{background:#c2410c;box-shadow:0 6px 18px rgba(194,65,12,.38)}
.float-cta .cta-ultra:hover{background:#9a3412}
.float-cta .cta-anime{background:#8b3ff0;box-shadow:0 6px 18px rgba(139,63,240,.38)}
.float-cta .cta-anime:hover{background:#7430cf}
.float-cta .cta-clear{background:#eef1f6;color:var(--ink-2);border:1px solid var(--line);box-shadow:0 6px 18px rgba(20,30,60,.12)}
.float-cta .cta-clear:hover{background:#e3e7ee;color:#c0392b;border-color:#f0c9c9}

/* ---------- toast ---------- */
.toast{
  position:fixed;left:50%;bottom:28px;transform:translateX(-50%);z-index:60;
  background:rgba(31,35,41,.94);color:#fff;padding:10px 18px;border-radius:10px;
  font-size:13.5px;max-width:86vw;box-shadow:0 8px 24px rgba(0,0,0,.22);
}

.scrim{display:none;position:fixed;inset:0;background:rgba(10,15,25,.42);z-index:8}

/* ---------- 移动端 ---------- */
@media (max-width:820px){
  .sidebar{
    position:fixed;top:0;left:0;bottom:0;z-index:9;transform:translateX(-104%);
    transition:transform .24s ease;box-shadow:0 0 40px rgba(0,0,0,.18);
    width:82vw;flex-basis:82vw;
  }
  .sidebar.open{transform:translateX(0)}
  .scrim.show{display:block}
  .hamburger{display:inline-block}
  .reader{padding:16px 14px 90px}
  .ch-title{font-size:19px}
  .paras .para{font-size:17px;line-height:1.95}
  .topbar{padding:0 10px;gap:8px}
  .navbtn{padding:6px 9px;font-size:12.5px}
  .crumb{font-size:12px}
}