:root{
  --paper:#f3edde; --card:#fcf9f0; --ink:#2e2a24; --ink2:#8a8172;
  --line:#e3dac6; --line2:#cfc3a8;
  --red:#a63e2c; --red-d:#8a3021; --red-bg:#f7ebe4;
  --green:#3f7d51; --green-bg:#ecf4ec; --amber:#a8752c;
}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
[hidden]{display:none!important}
html{height:100%}
body{
  min-height:100vh;color:var(--ink);font-size:16px;
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",STSong,SimSun,serif;
  background:radial-gradient(1100px 480px at 88% -120px, rgba(166,62,44,.07), transparent 60%), var(--paper);
}
button{font-family:inherit;color:inherit;cursor:pointer;touch-action:manipulation}
.tb,.opt,.btn,.gbtn{-webkit-user-select:none;user-select:none}
svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;display:block}
svg.fil{fill:currentColor;stroke:none}

/* 水印 */
.wm{position:fixed;right:0;top:84px;writing-mode:vertical-rl;font-size:4.6rem;letter-spacing:.14em;
  color:rgba(138,48,33,.055);pointer-events:none;z-index:0;line-height:1}

/* 顶栏 */
#top{position:sticky;top:0;z-index:20;background:rgba(243,237,222,.93);backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
#top .in{max-width:600px;margin:0 auto;display:flex;align-items:center;gap:10px;padding:10px 14px}
.seal{width:38px;height:38px;flex:0 0 38px;background:var(--red);color:#f9f2e4;border-radius:8px;
  display:grid;place-items:center;font-size:1.05rem;transform:rotate(-4deg);
  box-shadow:inset 0 0 0 1.5px rgba(249,242,228,.55), 0 2px 5px rgba(138,48,33,.25)}
.tt h1{font-size:1.02rem;font-weight:700;letter-spacing:.03em;text-wrap:balance}
.tt .sub{font-size:.72rem;color:var(--ink2);margin-top:1px}
.hud{margin-left:auto;display:flex;align-items:center;gap:10px}
.streak{display:flex;align-items:center;gap:3px;font-size:.76rem;color:var(--red-d);font-weight:600}
.streak svg{width:14px;height:14px}
.hudring{display:flex;align-items:center;gap:5px;font-size:.72rem;color:var(--ink2)}
.hudring b{color:var(--ink);font-size:.76rem}

/* 主区 */
main{position:relative;z-index:1;max-width:600px;margin:0 auto;padding:14px 14px calc(100px + env(safe-area-inset-bottom))}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;
  box-shadow:0 1px 2px rgba(60,50,30,.05), 0 8px 20px -14px rgba(60,50,30,.18)}

/* 学读 */
.lead{padding:13px 14px}
.leadp{font-size:.86rem;line-height:1.8;color:#5c554a;text-wrap:balance}
.leadrow{display:flex;align-items:center;gap:10px;margin-top:10px;flex-wrap:wrap}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{font-size:.78rem;padding:6px 13px;border-radius:99px;border:1px solid var(--line2);
  background:#fff;color:var(--ink2)}
.chip.on{background:var(--red);border-color:var(--red-d);color:#fbf4e6;font-weight:600}
.btn{padding:10px 16px;border-radius:12px;border:1px solid var(--line2);background:#fff;font-size:.9rem;
  display:inline-flex;align-items:center;gap:6px;justify-content:center}
.btn svg{width:15px;height:15px}
.btn.pri{background:var(--red);border-color:var(--red-d);color:#fbf4e6;font-weight:600}
.btn.wide{width:100%}
.stan{margin:16px 2px 2px;font-size:.8rem;letter-spacing:.35em;color:var(--red-d);font-weight:700;
  display:flex;align-items:center;gap:10px}
.stan::after{content:"";flex:1;height:1px;background:linear-gradient(90deg,var(--line2),transparent)}
.lc{padding:12px 14px 11px;margin-top:10px}
.lhead{display:flex;align-items:center;gap:7px;min-height:26px}
.lno{font-size:.7rem;color:var(--ink2);border:1px solid var(--line2);border-radius:6px;padding:1px 6px}
.tag{font-size:.68rem;color:var(--ink2)}
.tag.hi{color:var(--red-d);background:var(--red-bg);border:1px solid #e8d2c6;padding:1px 8px;border-radius:99px}
.mdots{margin-left:auto;display:flex;gap:3px}
.md{width:6px;height:6px;border-radius:50%;background:#d9cfb8}
.md.on{background:var(--red)}
.pbtn{width:32px;height:32px;flex:0 0 32px;border-radius:50%;border:1px solid var(--line2);background:#fff;
  color:var(--red-d);display:grid;place-items:center}
.pbtn svg{width:14px;height:14px}
body.no-tts .pbtn,body.no-tts .readall,body.no-tts .hearbtn{display:none!important}
.ltext{font-size:1.22rem;line-height:1.95;letter-spacing:.05em;margin-top:5px}
.ltext.pyon{line-height:2.25;font-size:1.14rem;letter-spacing:.02em}
.np{white-space:nowrap}
ruby{ruby-align:center}
rt{font-size:.52rem;color:var(--ink2);letter-spacing:.02em}
.trap{border-bottom:2px dotted rgba(166,62,44,.6)}
.mean,.rhy{margin-top:8px;font-size:.86rem;color:#5c554a;background:#f6f0e1;border-radius:10px;
  padding:8px 11px;line-height:1.7}
.lbl{font-style:normal;color:var(--red-d);font-size:.7rem;margin-right:7px;font-weight:700}
.foot{margin-top:14px;font-size:.75rem;color:var(--ink2);line-height:1.8}
.foot .trap{padding:0 2px}

/* 背诵 */
.seg{display:flex;gap:8px;margin-bottom:10px}
.seg .chip{flex:1;text-align:center}
.beitools{display:flex;gap:8px;margin-bottom:4px}
.beitools .btn{flex:1;padding:8px 10px;font-size:.8rem}
.brow{padding:12px 14px;margin-top:10px}
.bhead{display:flex;align-items:center;gap:7px}
.bhead .lno{flex:0 0 auto}
.bhead .mdots{margin-left:0}
.bhead .pbtn{margin-left:auto}
.btxt{font-size:1.12rem;line-height:2.1;letter-spacing:.04em;margin-top:6px;word-break:break-word}
.bl{display:inline-block;width:.95em;border-bottom:2px solid #c8b997;height:1em;margin:0 .5px}
.rv{animation:fadein .35s}
@keyframes fadein{from{opacity:.15}to{opacity:1}}
.bbtns{display:flex;gap:8px;margin-top:9px}
.gbtn{font-size:.78rem;padding:6px 13px;border-radius:99px;border:1px solid var(--line2);background:#fff;color:var(--ink2)}
.gbtn.ok{color:var(--green);border-color:#bcd8c2}
.gbtn.no{color:var(--red-d);border-color:#dfb7ad}

/* 练习 */
.qprog{display:flex;gap:4px;margin:2px 0 12px}
.qseg{flex:1;height:5px;border-radius:3px;background:#ddd0b3}
.qseg.cur{background:var(--red)} .qseg.ok{background:var(--green)} .qseg.no{background:#c0564a}
.qcard{padding:16px}
.qno{font-size:.72rem;color:var(--ink2);letter-spacing:.1em}
.qprompt{font-size:1rem;line-height:1.85;margin-top:6px;text-wrap:balance}
.qline{font-size:1.12rem;line-height:2;margin-top:8px;letter-spacing:.04em}
.qb{display:inline-block;min-width:1.15em;text-align:center;border-bottom:2px solid var(--red);
  color:var(--red);font-weight:700;margin:0 1px}
.opts{margin-top:8px}
.opt{display:block;width:100%;text-align:left;background:#fff;border:1.5px solid var(--line);
  border-radius:12px;padding:12px 14px;margin-top:10px;font-size:.95rem;line-height:1.6}
.optgrid{display:grid;gap:10px;margin-top:8px}
.optgrid .opt{margin-top:0}
.g4{grid-template-columns:repeat(4,1fr)} .g4 .opt{text-align:center;font-size:1.3rem;padding:13px 6px}
.g2{grid-template-columns:1fr 1fr} .g2 .opt{text-align:center;font-size:1.3rem;padding:13px 6px}
.opt:not(:disabled):hover{border-color:var(--line2)}
.opt.correct{border-color:var(--green);background:var(--green-bg)}
.opt.wrong{border-color:#c0564a;background:var(--red-bg)}
.opt:disabled{cursor:default}
.opt.dim{opacity:.55}
.hearbtn{display:inline-flex;align-items:center;gap:7px;margin-top:10px;padding:9px 16px;border-radius:99px;
  border:1.5px solid var(--red);color:var(--red-d);background:var(--red-bg);font-size:.88rem;font-weight:600}
.hearbtn svg{width:15px;height:15px}
.fbar{margin-top:14px;border-radius:12px;padding:10px 13px;font-size:.85rem;line-height:1.7;
  display:flex;align-items:flex-start;gap:10px}
.fbar.ok{background:var(--green-bg);color:#2c5e3a;border:1px solid #cfe3cf}
.fbar.no{background:var(--red-bg);color:#8a3021;border:1px solid #e7c9bf}
.fbar .fbtxt{flex:1}
.nextbtn{flex:0 0 auto;border:none;background:none;color:inherit;font-size:.82rem;font-weight:700;
  padding:2px 2px;letter-spacing:.05em}
.lianhead{display:flex;align-items:baseline;gap:10px}
.lianhead h2{font-size:1.15rem}
.lianhead span{font-size:.76rem;color:var(--ink2)}

/* 结算 */
.done{text-align:center;padding:26px 18px 20px;animation:fadein .4s}
.done h2{font-size:1.15rem;letter-spacing:.2em}
.ringw{position:relative;width:124px;height:124px;margin:14px auto 6px}
.ringw .bigp{position:absolute;inset:0;display:grid;place-items:center;font-size:1.9rem;font-weight:700}
.stamp{width:92px;height:92px;margin:8px auto 0;border:3px solid var(--red);color:var(--red);border-radius:10px;
  display:grid;place-items:center;font-size:2rem;font-weight:700;letter-spacing:.1em;transform:rotate(-6deg);
  background:rgba(166,62,44,.05);animation:stampin .55s cubic-bezier(.2,1.5,.4,1)}
.stamp.fill{background:var(--red);color:#f9f2e4;box-shadow:0 4px 14px rgba(138,48,33,.3)}
@keyframes stampin{0%{transform:scale(2.1) rotate(-15deg);opacity:0}
  60%{transform:scale(.94) rotate(-4deg);opacity:1}100%{transform:scale(1) rotate(-6deg)}}
.donesub{font-size:.8rem;color:var(--ink2);margin-top:10px}
.pills{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin-top:12px}
.pill{font-size:.78rem;padding:3px 11px;border-radius:99px;border:1px solid var(--line2);color:var(--ink2)}
.pill.ok{color:var(--green);border-color:#bcd8c2;background:#f0f7f0}
.pill.no{color:#b04a3c;background:var(--red-bg);border-color:#e0c0b4}
.btnrow{display:flex;gap:10px;margin-top:18px}
.btnrow .btn{flex:1}

/* 记/成绩 */
.sumrow{display:flex;gap:10px;margin-top:10px}
.sumcard{flex:1;padding:12px 6px;text-align:center}
.sumcard b{display:block;font-size:1.3rem}
.sumcard span{font-size:.68rem;color:var(--ink2)}
.h2{font-size:.85rem;color:var(--red-d);letter-spacing:.3em;margin:18px 2px 8px;font-weight:700;
  display:flex;align-items:center;gap:10px}
.h2::after{content:"";flex:1;height:1px;background:linear-gradient(90deg,var(--line2),transparent)}
.urow{display:flex;align-items:center;gap:9px;padding:10px 13px;margin-top:8px}
.urow .ut{flex:1;min-width:0}
.urow .ut b{font-size:.9rem;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mlab{font-size:.72rem;padding:2px 9px;border-radius:99px;border:1px solid var(--line2);color:var(--ink2);flex:0 0 auto}
.mlab.s5{color:var(--green);border-color:#bcd8c2;background:#f0f7f0}
.mlab.s34{color:var(--blue,#41698c);border-color:#c3d2df;background:#eef3f7}
.mlab.s12{color:var(--amber);border-color:#e0d0ac;background:#f7f1e0}
.ygrid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.ycard{padding:11px 12px}
.ycard .yc{display:flex;align-items:baseline;gap:8px}
.ycard .yc b{font-size:1.5rem}
.ycard .yc i{font-style:normal;font-size:.74rem;color:var(--red-d)}
.ycard p{font-size:.74rem;color:var(--ink2);line-height:1.65;margin-top:4px}
.note{padding:11px 13px;margin-top:8px;font-size:.76rem;color:var(--ink2);line-height:1.8}
.danger{margin-top:14px;text-align:center}
.danger .btn{color:#b04a3c;border-color:#dfb7ad;background:#fff}

/* 底部导航 */
#tabbar{position:fixed;left:0;right:0;bottom:0;z-index:20;background:rgba(252,249,240,.97);
  border-top:1px solid var(--line);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
#tabbar .in{max-width:600px;margin:0 auto;display:flex}
.tb{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;padding:9px 0 calc(9px + env(safe-area-inset-bottom));
  background:none;border:none;color:var(--ink2);font-size:.72rem}
.tb svg{width:22px;height:22px}
.tb.active{color:var(--red-d);font-weight:700}

#toast{position:fixed;left:50%;bottom:calc(84px + env(safe-area-inset-bottom));transform:translateX(-50%) translateY(8px);
  background:#3a352c;color:#f7f1e3;padding:9px 15px;border-radius:10px;font-size:.84rem;opacity:0;
  pointer-events:none;transition:.25s;z-index:50;max-width:86vw;text-align:center;line-height:1.6}
#toast.show{opacity:1;transform:translateX(-50%)}
main{animation:viewin .25s}
@keyframes viewin{from{opacity:.35;transform:translateY(5px)}to{opacity:1;transform:none}}
@media (min-width:640px){ .ltext{font-size:1.3rem} .btxt{font-size:1.26rem} }
/* 篇目切换与复习排程 */
.pbar{position:sticky;top:58px;z-index:15;display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;
  margin:0 -14px 4px;padding:8px 14px 6px;background:rgba(243,237,222,.96);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.pbar::-webkit-scrollbar{display:none}
.pbar .chip{flex:0 0 auto;font-size:.82rem;padding:7px 15px}
.duechip{border-color:var(--red)!important;color:var(--red-d)!important;background:var(--red-bg)!important;font-weight:700}
.urow .due{font-size:.66rem;color:var(--ink2);flex:0 0 62px;text-align:right}
.pov{display:flex;align-items:center;gap:10px;padding:10px 13px;margin-top:8px}
.pov .pr{flex:0 0 auto;line-height:0}
.pov b{font-size:.9rem}
.pov span{font-size:.72rem;color:var(--ink2);margin-left:auto}


/* 每日提醒 */
.remrow{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.remtime{font-size:1rem;padding:5px 8px;border:1px solid var(--line2);border-radius:10px;background:#fff;font-family:inherit;color:var(--ink)}
.installhint{font-size:.75rem;color:var(--ink2);line-height:1.7;margin-top:8px}