:root{
  --pink:#E6007E;
  --hot:#FF1493;
  --ink:#111;
  --mute:#6b6b6b;
  --line:#e9e9e9;
  --tint:#FFF0F7;
  --bg:#fff;
  --r:18px;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;background:var(--bg);color:var(--ink)}
body{
  font-family:"Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP",system-ui,sans-serif;
  font-weight:600;line-height:1.55;
  padding-bottom:calc(76px + env(safe-area-inset-bottom));
}
body.focus{padding-bottom:0}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none;touch-action:manipulation}
.zh{font-family:"PingFang SC","Hiragino Sans GB","Noto Sans SC","Microsoft YaHei",sans-serif}
#app{max-width:560px;margin:0 auto;padding:calc(env(safe-area-inset-top) + 14px) 16px 24px}

/* header */
.top{display:flex;align-items:baseline;gap:10px;margin:4px 0 18px}
.logo{font-family:"Rubik Wet Paint",system-ui;font-size:38px;color:var(--pink);line-height:1;letter-spacing:.02em}
.logo-zh{font-size:20px;font-weight:900}
.h2{font-size:22px;font-weight:900;margin:22px 0 10px}
.note{color:var(--mute);font-size:13px;font-weight:600}

/* cards */
.card{border:2.5px solid var(--ink);border-radius:var(--r);padding:16px;margin:12px 0;background:#fff}
.hero{background:var(--pink);color:#fff;border-radius:24px;padding:20px 20px 18px;margin-bottom:14px;box-shadow:0 10px 28px rgba(230,0,126,.28)}
.hero .big{font-size:64px;font-weight:900;line-height:1}
.hero .big small{font-size:22px;margin-left:4px}
.hero .lbl{font-size:15px;font-weight:800;opacity:.95}
.hero .sub{font-size:13px;opacity:.9;margin-top:2px}
.goal{margin-top:14px;font-size:14px}
.bar{height:12px;border-radius:99px;background:rgba(255,255,255,.35);overflow:hidden;margin:8px 0 4px}
.bar i{display:block;height:100%;background:#fff;border-radius:99px}
.bar.dark{background:var(--line)}
.bar.dark i{background:var(--pink)}

.cta{display:flex;justify-content:space-between;align-items:center;width:100%;background:var(--ink);color:#fff;border-radius:var(--r);padding:20px 22px;font-size:22px;font-weight:900;margin:10px 0}
.cta span{font-size:13px;font-weight:700;opacity:.75}
.cta2{display:block;width:100%;border:2.5px solid var(--ink);border-radius:var(--r);padding:14px 18px;font-size:17px;font-weight:900;text-align:left;margin:10px 0}
.cta2 .pk{color:var(--pink)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:10px}

/* week bars */
.week{display:flex;gap:6px;align-items:flex-end;height:64px;margin-top:10px}
.week div{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px;font-size:11px;color:var(--mute)}
.week i{display:block;width:100%;border-radius:6px;background:var(--pink);min-height:3px}
.week i.zero{background:var(--line)}

/* roadmap */
.road{list-style:none;margin:0;padding:0}
.road li{display:flex;gap:12px;align-items:center;padding:9px 0;border-bottom:1px solid var(--line)}
.road li:last-child{border:0}
.dot{width:26px;height:26px;border-radius:50%;border:2.5px solid var(--ink);flex:none;display:grid;place-items:center;font-size:13px}
.done .dot{background:var(--pink);border-color:var(--pink);color:#fff}
.now .dot{border-color:var(--pink);box-shadow:0 0 0 4px rgba(230,0,126,.18)}
.road b{font-size:16px}
.road .d{font-size:12px;color:var(--mute)}

/* nav */
#nav{position:fixed;left:0;right:0;bottom:0;display:flex;background:#fff;border-top:2.5px solid var(--ink);padding-bottom:env(safe-area-inset-bottom);z-index:10}
#nav button{flex:1;padding:8px 0 10px;font-size:11px;font-weight:800;color:var(--mute);display:flex;flex-direction:column;align-items:center;gap:1px}
#nav button b{font-size:21px;line-height:1.2;font-family:"PingFang SC","Hiragino Sans GB",sans-serif}
#nav button.on{color:var(--pink)}
body.focus #nav{display:none}

/* lesson */
.lbar{display:flex;align-items:center;gap:12px;margin-bottom:22px}
.x{font-size:26px;width:36px;height:36px;font-weight:900;color:var(--mute)}
.lbar .bar{flex:1;height:14px;background:var(--line);margin:0}
.lbar .bar i{background:var(--pink);transition:width .3s}
.kind{font-size:13px;font-weight:900;color:var(--pink);letter-spacing:.06em;margin-bottom:6px}
.ask{font-size:18px;font-weight:800;margin-bottom:14px;display:flex;align-items:center;justify-content:space-between;gap:10px}
.prompt{text-align:center;padding:18px 0 22px}
.prompt .hz{font-size:72px;font-weight:700;line-height:1.15}
.prompt .py{font-size:20px;color:var(--pink);font-weight:800;margin-top:6px}
.prompt .ja{font-size:28px;font-weight:900}
.sent{font-size:28px;line-height:1.7;text-align:left;padding:8px 0 18px}
.sent mark{background:none;color:var(--pink);border-bottom:4px solid var(--pink)}
.spk{display:inline-grid;place-items:center;width:44px;height:44px;border-radius:50%;border:2.5px solid var(--ink);font-size:19px;vertical-align:middle}
.spk.big{width:96px;height:96px;font-size:40px;background:var(--pink);border-color:var(--pink);color:#fff}
.choices{display:grid;gap:10px}
.choices.grid{grid-template-columns:1fr 1fr}
.ch{border:2.5px solid var(--ink);border-radius:16px;padding:15px 14px;font-size:18px;font-weight:800;text-align:left;background:#fff;min-height:58px}
.choices.grid .ch{text-align:center;font-size:30px;font-weight:700;padding:16px 6px}
.ch:active{transform:scale(.98)}
.ch.ok{background:var(--pink);border-color:var(--pink);color:#fff}
.ch.ng{background:var(--ink);color:#fff}
.ch.dim{opacity:.35}
.intro{border:3px solid var(--pink);border-radius:24px;padding:24px 18px;text-align:center}
.intro .tag{display:inline-block;background:var(--pink);color:#fff;font-size:12px;font-weight:900;border-radius:99px;padding:3px 12px;letter-spacing:.08em}
.intro .hz{font-size:88px;font-weight:700;line-height:1.2;margin-top:8px}
.intro .py{font-size:24px;color:var(--pink);font-weight:800}
.intro .m{font-size:26px;font-weight:900;margin:8px 0}
.warn{display:inline-block;background:var(--ink);color:#fff;border-radius:10px;padding:5px 10px;font-size:13px;font-weight:800;margin-top:6px}
.ex{text-align:left;background:var(--tint);border-radius:14px;padding:12px 14px;margin-top:16px}
.ex .zh{font-size:20px}
.ex .t{font-size:13px;color:var(--mute)}

.fb{position:fixed;left:0;right:0;bottom:0;background:#fff;border-top:3px solid var(--ink);padding:16px 16px calc(16px + env(safe-area-inset-bottom));z-index:20;animation:up .18s ease-out}
.fb.good{border-color:var(--pink);background:var(--tint)}
.fb-in{max-width:560px;margin:0 auto}
.fb .res{font-size:20px;font-weight:900}
.fb.good .res{color:var(--pink)}
.fb .ans{font-size:16px;margin:4px 0 12px}
.fb .ans .zh{font-size:22px}
.next{display:block;width:100%;background:var(--ink);color:#fff;border-radius:16px;padding:17px;font-size:19px;font-weight:900}
.fb.good .next{background:var(--pink)}
@keyframes up{from{transform:translateY(40%);opacity:0}to{transform:none;opacity:1}}
.spacer{height:200px}

/* result */
.result{text-align:center;padding-top:20px}
.result .pct{font-size:84px;font-weight:900;color:var(--pink);line-height:1}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
.chip{border:2px solid var(--ink);border-radius:12px;padding:6px 10px;font-size:14px;text-align:left}
.chip .zh{font-size:20px;margin-right:6px}

/* reading */
.lvh{display:flex;align-items:center;gap:8px;margin:22px 0 6px;font-weight:900}
.lvb{background:var(--ink);color:#fff;font-size:12px;border-radius:99px;padding:2px 10px}
.story{display:block;width:100%;text-align:left;border:2.5px solid var(--ink);border-radius:var(--r);padding:14px 16px;margin:10px 0;background:#fff}
.story .t{font-size:22px;font-weight:700}
.story .j{font-size:13px;color:var(--mute)}
.story .cov{display:flex;align-items:center;gap:10px;font-size:13px;margin-top:8px}
.story .cov .bar{flex:1;margin:0;height:8px}
.story.read{border-color:var(--pink)}
.ok-badge{color:var(--pink);font-weight:900}
.para{margin:0 0 18px}
.para p{font-size:24px;line-height:1.9;margin:0}
.tk{border-radius:4px}
.tk.unk{border-bottom:2.5px dotted var(--pink)}
.tk.sel{background:var(--pink);color:#fff}
.ptools{display:flex;gap:8px;margin-top:6px}
.mini{border:2px solid var(--ink);border-radius:99px;padding:3px 12px;font-size:13px;font-weight:800}
.tr{background:var(--tint);border-radius:12px;padding:10px 12px;font-size:15px;margin-top:8px}
.back{font-size:15px;font-weight:900;margin-bottom:10px}
.stitle{font-size:32px;font-weight:700;margin:0}

/* sheet */
#sheet{position:fixed;inset:0;z-index:30;background:rgba(0,0,0,.25)}
#sheet .pan{position:absolute;left:0;right:0;bottom:0;background:#fff;border-top:3px solid var(--pink);border-radius:22px 22px 0 0;padding:18px 18px calc(20px + env(safe-area-inset-bottom));animation:up .18s ease-out}
#sheet .pan>div{max-width:560px;margin:0 auto}
#sheet .hz{font-size:48px;font-weight:700;line-height:1.2}
#sheet .py{font-size:20px;color:var(--pink);font-weight:800}
#sheet .m{font-size:20px;font-weight:900;margin:4px 0 12px}
.btns{display:flex;gap:10px;flex-wrap:wrap}
.btn{border:2.5px solid var(--ink);border-radius:14px;padding:11px 16px;font-size:15px;font-weight:900}
.btn.pk{background:var(--pink);border-color:var(--pink);color:#fff}
.btn.bk{background:var(--ink);color:#fff}

/* words */
.tabs{display:flex;gap:6px;overflow-x:auto;margin:6px 0 12px}
.tab{border:2.5px solid var(--ink);border-radius:99px;padding:6px 14px;font-size:14px;font-weight:900;white-space:nowrap}
.tab.on{background:var(--ink);color:#fff}
.wl{list-style:none;margin:0;padding:0}
.wl li{display:flex;align-items:center;gap:12px;padding:10px 2px;border-bottom:1px solid var(--line)}
.wl .zh{font-size:24px;min-width:72px}
.wl .py{font-size:13px;color:var(--pink);font-weight:800}
.wl .m{font-size:14px}
.st{margin-left:auto;font-size:11px;font-weight:900;border-radius:99px;padding:2px 9px;white-space:nowrap}
.st.s0{color:var(--mute);border:1.5px solid var(--line)}
.st.s1{border:1.5px solid var(--pink);color:var(--pink)}
.st.s2{background:var(--pink);color:#fff}
.search{width:100%;border:2.5px solid var(--ink);border-radius:14px;padding:12px 14px;font:inherit;font-size:16px}

/* sweep */
.sweep{text-align:center;padding:30px 0}
.sweep .hz{font-size:96px;font-weight:700;line-height:1.2}
.sweep .rev{min-height:70px;margin:10px 0 20px}
.sweep .row2 .btn{padding:18px;font-size:18px}

/* settings */
.set{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:12px 0;border-bottom:1px solid var(--line)}
.seg{display:flex;border:2.5px solid var(--ink);border-radius:12px;overflow:hidden}
.seg button{padding:7px 12px;font-size:14px;font-weight:900}
.seg button.on{background:var(--pink);color:#fff}
.toast{position:fixed;left:50%;top:calc(env(safe-area-inset-top) + 14px);transform:translateX(-50%);background:var(--ink);color:#fff;border-radius:99px;padding:9px 18px;font-size:14px;font-weight:800;z-index:50}

/* ピンインは欧文フォントで（和文フォントだと声調記号が崩れる） */
.py,.pyf{font-family:"Avenir Next","Helvetica Neue",Arial,sans-serif !important;font-weight:700}
.blank{color:var(--pink);font-weight:900;letter-spacing:.1em}
.sent .tk,.ex .tk{border-bottom:1.5px dotted #bbb}
.sent .note{font-size:15px;color:#444}
.blank{display:inline-block;min-width:2.2em;border-bottom:4px solid var(--pink);color:transparent;margin:0 2px}
/* iOS Safariは span/li などのクリックを document まで上げないことがある。cursor:pointer で届くようにする */
[data-act],[data-go],#sheet{cursor:pointer}