/* ============ 基础 ============ */
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;margin:0;padding:0}
html,body{height:100%}
body{
  font-family:'Nunito','SF Pro Display','Segoe UI',system-ui,-apple-system,'PingFang SC','Microsoft YaHei',sans-serif;
  color:#3a3a3a;max-width:560px;margin:0 auto;min-height:100vh;overflow-x:hidden;
}
button{font-family:inherit}

/* ============ 背景：彩色模糊光斑（液态玻璃的光源） ============ */
.bg{position:fixed;inset:0;z-index:-1;overflow:hidden;background:linear-gradient(160deg,#dff8d2 0%,#eef9ff 38%,#e8f6ff 72%,#f3f0ff 100%)}
.bg::after{content:'';position:absolute;inset:-50%;background:linear-gradient(115deg,transparent 32%,rgba(255,255,255,.38) 46%,rgba(255,255,255,.12) 52%,transparent 66%);filter:blur(36px);animation:flowSweep 15s ease-in-out infinite}
@keyframes flowSweep{0%,100%{transform:translateX(-26%)}50%{transform:translateX(26%)}}
.blob{position:absolute;border-radius:50%;filter:blur(64px);opacity:.5;will-change:transform}
.blob1{width:48vmax;height:48vmax;left:-16vmax;top:-14vmax;background:radial-gradient(circle at 35% 35%,#8ce85a,#58cc02 62%);animation:drift1 26s ease-in-out infinite}
.blob2{width:44vmax;height:44vmax;right:-14vmax;top:8vmax;background:radial-gradient(circle at 60% 40%,#6ed3ff,#1cb0f6 62%);animation:drift2 30s ease-in-out infinite}
.blob3{width:40vmax;height:40vmax;left:4vmax;bottom:-18vmax;background:radial-gradient(circle at 50% 50%,#ffe684,#ffc800 62%);animation:drift3 34s ease-in-out infinite}
.blob4{width:34vmax;height:34vmax;right:10vmax;bottom:2vmax;background:radial-gradient(circle at 50% 50%,#c3a2ff,#8b5cf6 62%);opacity:.38;animation:drift4 28s ease-in-out infinite}
@keyframes drift1{0%,100%{transform:translate(0,0) scale(1) rotate(0)}25%{transform:translate(9vmax,-7vmax) scale(1.14) rotate(8deg)}50%{transform:translate(-5vmax,10vmax) scale(.94) rotate(-6deg)}75%{transform:translate(7vmax,5vmax) scale(1.1) rotate(4deg)}}
@keyframes drift2{0%,100%{transform:translate(0,0) scale(1)}25%{transform:translate(-8vmax,6vmax) scale(1.08)}50%{transform:translate(6vmax,-8vmax) scale(.92)}75%{transform:translate(-4vmax,-4vmax) scale(1.12)}}
@keyframes drift3{0%,100%{transform:translate(0,0) scale(1)}25%{transform:translate(7vmax,6vmax) scale(1.1)}50%{transform:translate(-9vmax,-5vmax) scale(.95)}75%{transform:translate(3vmax,-8vmax) scale(1.08)}}
@keyframes drift4{0%,100%{transform:translate(0,0) scale(1)}25%{transform:translate(-6vmax,-6vmax) scale(1.12)}50%{transform:translate(8vmax,7vmax) scale(.94)}75%{transform:translate(-5vmax,8vmax) scale(1.06)}}

/* ============ 玻璃面板通用 ============ */
.glass{
  background:rgba(255,255,255,.55);
  -webkit-backdrop-filter:blur(18px) saturate(180%);
  backdrop-filter:blur(18px) saturate(180%);
  border:1px solid rgba(255,255,255,.68);
  box-shadow:0 8px 26px rgba(31,90,0,.10), inset 0 1px 0 rgba(255,255,255,.65);
}

/* ============ 屏幕与转场 ============ */
.screen{display:none;padding:16px 16px 40px;min-height:100vh}
.screen.active{display:block;animation:screenIn .45s cubic-bezier(.16,1,.3,1)}
@keyframes screenIn{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}

.topbar{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.brand{font-size:21px;font-weight:900;color:#1f1f1f;flex:1;letter-spacing:.3px}
.title{font-size:18px;font-weight:900;flex:1;text-align:center;color:#1f1f1f}
.streak{
  font-weight:800;color:#ff9600;padding:7px 14px;border-radius:999px;
  background:rgba(255,255,255,.6);-webkit-backdrop-filter:blur(14px) saturate(160%);backdrop-filter:blur(14px) saturate(160%);
  border:1px solid rgba(255,255,255,.7);box-shadow:0 4px 14px rgba(31,90,0,.08);
  animation:heartBeat 2.6s ease-in-out infinite;
}
@keyframes heartBeat{0%,100%{transform:scale(1)}8%{transform:scale(1.08)}16%{transform:scale(1)}24%{transform:scale(1.05)}32%{transform:scale(1)}}

/* ============ 按钮（液态玻璃 + 涟漪 + 弹性按压） ============ */
.btn{
  position:relative;overflow:hidden;border:none;border-radius:18px;
  font-size:16px;font-weight:800;padding:14px 20px;color:#fff;cursor:pointer;text-align:center;
  transition:transform .16s cubic-bezier(.34,1.56,.64,1),box-shadow .2s,filter .2s,opacity .15s;
  box-shadow:0 6px 16px rgba(0,0,0,.14), inset 0 1px 0 rgba(255,255,255,.42);
  user-select:none;-webkit-user-select:none;
}
.btn:active{transform:scale(.93) translateY(1px)}
.btn:hover{filter:brightness(1.05)}
.btn:disabled{opacity:.5;cursor:not-allowed;box-shadow:none}
.btn:disabled:active{transform:none}
.btn::before{ /* 玻璃斜向光泽 */
  content:'';position:absolute;top:0;left:-60%;width:45%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.45),transparent);
  transform:skewX(-20deg);transition:left .5s;pointer-events:none;
}
.btn:hover::before{left:115%}
.btn-block{display:block;width:100%;margin:8px 0}
.btn-flex{flex:1;margin:0 4px}
.btn-lg{font-size:20px;padding:17px 22px;border-radius:20px}
.btn-sm{font-size:13px;padding:8px 13px;border-radius:12px;box-shadow:0 3px 8px rgba(0,0,0,.12), inset 0 1px 0 rgba(255,255,255,.4)}
.btn-green{background:linear-gradient(180deg,#7ce34d,#3faf00);box-shadow:0 6px 16px rgba(88,204,2,.38), inset 0 1px 0 rgba(255,255,255,.42)}
.btn-blue{background:linear-gradient(180deg,#6ed3ff,#1593d6);box-shadow:0 6px 16px rgba(28,176,246,.38), inset 0 1px 0 rgba(255,255,255,.42)}
.btn-red{background:linear-gradient(180deg,#ff7b7b,#f02d2d);box-shadow:0 6px 16px rgba(255,75,75,.38), inset 0 1px 0 rgba(255,255,255,.42)}
.btn-yellow{background:linear-gradient(180deg,#ffe684,#f0b400);color:#4b3b00;box-shadow:0 6px 16px rgba(255,200,0,.35), inset 0 1px 0 rgba(255,255,255,.5)}
.btn-gray{
  background:rgba(255,255,255,.62);color:#555;
  -webkit-backdrop-filter:blur(14px) saturate(160%);backdrop-filter:blur(14px) saturate(160%);
  border:1px solid rgba(255,255,255,.75);box-shadow:0 4px 14px rgba(31,90,0,.08), inset 0 1px 0 rgba(255,255,255,.7);
}
.ripple{
  position:absolute;border-radius:50%;background:rgba(255,255,255,.5);
  transform:scale(0);animation:ripple .5s ease-out forwards;pointer-events:none;z-index:1;
}
@keyframes ripple{to{transform:scale(1);opacity:0}}

/* 开始按钮呼吸光 */
#startBtn:not(:disabled){animation:pulseGlow 2.2s ease-in-out infinite}
@keyframes pulseGlow{
  0%,100%{box-shadow:0 6px 16px rgba(88,204,2,.38), inset 0 1px 0 rgba(255,255,255,.42)}
  50%{box-shadow:0 6px 30px rgba(88,204,2,.65), 0 0 0 6px rgba(88,204,2,.12), inset 0 1px 0 rgba(255,255,255,.42)}
}

/* ============ 首页 ============ */
.hero{padding:26px 6px 18px;text-align:center}
.greeting{font-size:28px;font-weight:900;color:#1f1f1f}
.sub{color:#6b6b6b;margin-top:6px}
.stats{
  display:flex;padding:16px 6px;margin:18px 0;border-radius:24px;
  background:rgba(255,255,255,.55);-webkit-backdrop-filter:blur(18px) saturate(180%);backdrop-filter:blur(18px) saturate(180%);
  border:1px solid rgba(255,255,255,.68);box-shadow:0 8px 26px rgba(31,90,0,.10), inset 0 1px 0 rgba(255,255,255,.65);
}
.stat{flex:1;text-align:center}
.stat .num{font-size:23px;font-weight:900;color:#1cb0f6}
.stat .lbl{font-size:12px;color:#8a8a8a;margin-top:2px}
.home-actions{display:flex;margin-top:4px}

/* ============ 学习卡片（3D 翻转液态玻璃） ============ */
.flip{height:320px;position:relative;perspective:1200px;cursor:pointer;margin-top:6px}
.flip-inner{
  position:absolute;inset:0;transform-style:preserve-3d;
  transition:transform .55s cubic-bezier(.2,.8,.2,1);
}
.flip.flipped .flip-inner{transform:rotateY(180deg)}
.flip-face{
  position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding:26px;border-radius:28px;text-align:center;
  background:rgba(255,255,255,.62);
  -webkit-backdrop-filter:blur(20px) saturate(190%);backdrop-filter:blur(20px) saturate(190%);
  border:1px solid rgba(255,255,255,.75);
  box-shadow:0 10px 34px rgba(31,90,0,.12), inset 0 1px 0 rgba(255,255,255,.75), inset 0 -10px 24px rgba(255,255,255,.35);
  -webkit-backface-visibility:hidden;backface-visibility:hidden;
  transition:border-color .25s,box-shadow .25s;
}
.flip-back{transform:rotateY(180deg)}
.flip-in{animation:cardIn .4s cubic-bezier(.16,1,.3,1)}
@keyframes cardIn{from{opacity:0;transform:translateY(18px) scale(.97)}to{opacity:1;transform:none}}
.word{font-size:46px;font-weight:900;color:#1f1f1f;word-break:break-word;letter-spacing:.5px}
.word-sm{font-size:22px;font-weight:900;color:#1f1f1f;margin-bottom:10px}
.phonetic{color:#7a7a7a;font-size:17px;margin:6px 0 4px}
.btn-icon{
  border:none;background:linear-gradient(180deg,#6ed3ff,#1593d6);color:#fff;font-size:17px;border-radius:50%;
  width:46px;height:46px;cursor:pointer;margin-top:12px;
  box-shadow:0 5px 14px rgba(28,176,246,.4), inset 0 1px 0 rgba(255,255,255,.45);
  transition:transform .15s cubic-bezier(.34,1.56,.64,1);
}
.btn-icon:active{transform:scale(.88)}
.hint{color:#9a9a9a;font-size:13px;margin-top:16px;letter-spacing:.5px}
.meaning{font-size:21px;color:#333;line-height:1.55;white-space:pre-line}
.example{color:#777;font-size:14px;margin-top:12px;font-style:italic;line-height:1.5}
.answer-btns{display:flex;margin-top:16px;gap:10px}
.hidden{display:none!important}

/* 对错反馈：玻璃发光 + 弹性/抖动 */
.feedback-ok{animation:popBounce .5s cubic-bezier(.34,1.56,.64,1)}
.feedback-ok .flip-face{border-color:rgba(88,204,2,.85);box-shadow:0 0 0 4px rgba(88,204,2,.30), 0 12px 36px rgba(88,204,2,.28), inset 0 1px 0 rgba(255,255,255,.75)}
.feedback-no{animation:shake .45s}
.feedback-no .flip-face{border-color:rgba(255,75,75,.85);box-shadow:0 0 0 4px rgba(255,75,75,.26), 0 12px 36px rgba(255,75,75,.22), inset 0 1px 0 rgba(255,255,255,.75)}
@keyframes popBounce{0%{transform:scale(1)}35%{transform:scale(1.05)}70%{transform:scale(.98)}100%{transform:scale(1)}}
@keyframes shake{0%,100%{transform:translateX(0)}18%{transform:translateX(-9px)}36%{transform:translateX(9px)}54%{transform:translateX(-6px)}72%{transform:translateX(6px)}}

/* 反馈面板 */
.fb{
  margin-top:16px;border-radius:22px;padding:18px;text-align:center;
  background:rgba(255,255,255,.6);-webkit-backdrop-filter:blur(18px) saturate(180%);backdrop-filter:blur(18px) saturate(180%);
  border:1px solid rgba(255,255,255,.7);box-shadow:0 8px 26px rgba(31,90,0,.10), inset 0 1px 0 rgba(255,255,255,.65);
  animation:fbIn .35s cubic-bezier(.16,1,.3,1);
}
@keyframes fbIn{from{opacity:0;transform:translateY(12px) scale(.98)}to{opacity:1;transform:none}}
.fb-title{font-size:21px;font-weight:900;margin-bottom:6px}
.fb-sub{color:#555;line-height:1.6;font-size:15px;margin-bottom:10px}
.link{background:none;border:none;color:#1cb0f6;font-size:14px;font-weight:700;cursor:pointer;text-decoration:underline;padding:6px}

/* ============ 进度条 ============ */
.progress-track{
  flex:1;height:16px;border-radius:999px;overflow:hidden;
  background:rgba(255,255,255,.55);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,.7);
}
.progress-fill{
  height:100%;width:0;border-radius:999px;
  background:linear-gradient(90deg,#7ce34d,#58cc02 60%,#3faf00);
  box-shadow:0 0 12px rgba(88,204,2,.6);
  transition:width .5s cubic-bezier(.2,.8,.2,1);
}
.score{font-weight:900;color:#1cb0f6;min-width:44px;text-align:center;font-size:17px}

/* ============ 输入与筛选 ============ */
.input{
  width:100%;border:1px solid rgba(255,255,255,.75);border-radius:16px;padding:13px 14px;font-size:15px;
  background:rgba(255,255,255,.6);-webkit-backdrop-filter:blur(14px) saturate(160%);backdrop-filter:blur(14px) saturate(160%);
  margin:6px 0;outline:none;color:#333;transition:box-shadow .2s,border-color .2s;
}
.input:focus{border-color:rgba(28,176,246,.8);box-shadow:0 0 0 4px rgba(28,176,246,.18)}
.row{display:flex;gap:8px;align-items:center}
.chip{
  border:1px solid rgba(255,255,255,.7);background:rgba(255,255,255,.55);color:#6b6b6b;
  border-radius:999px;padding:8px 15px;font-size:13px;font-weight:700;cursor:pointer;margin:0 4px 4px 0;
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);transition:transform .15s cubic-bezier(.34,1.56,.64,1);
}
.chip:active{transform:scale(.94)}
.chip.on{
  background:linear-gradient(180deg,#7ce34d,#3faf00);color:#fff;border-color:transparent;
  box-shadow:0 4px 12px rgba(88,204,2,.35);
}
.import-box{margin:10px 0}
.import-box summary{cursor:pointer;color:#1cb0f6;font-weight:700;font-size:14px;padding:4px 0}

/* ============ 词库列表 ============ */
.empty{color:#9a9a9a;text-align:center;padding:30px 0}

/* ============ 弹窗 ============ */
.modal{
  position:fixed;inset:0;display:flex;align-items:center;justify-content:center;z-index:20;padding:20px;
  background:rgba(20,40,20,.32);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.modal-box{
  width:100%;max-width:440px;border-radius:24px;padding:22px;
  background:rgba(255,255,255,.68);-webkit-backdrop-filter:blur(24px) saturate(190%);backdrop-filter:blur(24px) saturate(190%);
  border:1px solid rgba(255,255,255,.8);box-shadow:0 20px 60px rgba(0,0,0,.22), inset 0 1px 0 rgba(255,255,255,.8);
  animation:modalIn .35s cubic-bezier(.34,1.56,.64,1);
}
@keyframes modalIn{from{opacity:0;transform:scale(.92) translateY(14px)}to{opacity:1;transform:none}}
.modal-title{font-size:18px;font-weight:900;margin-bottom:10px;color:#1f1f1f}
.modal-btns{display:flex;gap:10px;margin-top:12px}
.modal-btns .btn{flex:1}

/* ============ 设置 ============ */
.set-row{
  display:flex;align-items:center;justify-content:space-between;padding:15px;margin:9px 0;border-radius:18px;
  background:rgba(255,255,255,.55);-webkit-backdrop-filter:blur(16px) saturate(170%);backdrop-filter:blur(16px) saturate(170%);
  border:1px solid rgba(255,255,255,.68);box-shadow:0 5px 18px rgba(31,90,0,.08), inset 0 1px 0 rgba(255,255,255,.6);
  font-weight:700;
}
.hint{color:#8a8a8a;font-size:12px;text-align:center;margin-top:16px}

/* ============ 结算页 ============ */
.res-wrap{text-align:center;padding-top:44px}
.res-emoji{font-size:66px;animation:resPop .6s cubic-bezier(.34,1.56,.64,1)}
@keyframes resPop{0%{transform:scale(0)}70%{transform:scale(1.15)}100%{transform:scale(1)}}
.res-title{font-size:27px;font-weight:900;color:#1f1f1f;margin:12px 0 22px}
.res-stats{
  padding:18px;margin-bottom:18px;border-radius:24px;text-align:left;
  background:rgba(255,255,255,.55);-webkit-backdrop-filter:blur(18px) saturate(180%);backdrop-filter:blur(18px) saturate(180%);
  border:1px solid rgba(255,255,255,.68);box-shadow:0 8px 26px rgba(31,90,0,.10), inset 0 1px 0 rgba(255,255,255,.65);
}
.res-row{display:flex;justify-content:space-between;padding:8px 4px;border-bottom:1px dashed rgba(0,0,0,.08);font-size:15px}
.res-row:last-child{border:none}
.res-row b{color:#1cb0f6}

/* ============ Toast 与彩纸 ============ */
.toast{
  position:fixed;left:50%;bottom:32px;transform:translateX(-50%) translateY(20px);
  background:rgba(30,34,32,.72);color:#fff;padding:11px 20px;border-radius:14px;font-size:14px;
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.18);box-shadow:0 10px 30px rgba(0,0,0,.25);
  opacity:0;transition:opacity .3s,transform .3s cubic-bezier(.34,1.56,.64,1);pointer-events:none;z-index:30;
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.confetti{
  position:fixed;top:-12px;z-index:50;border-radius:2px;pointer-events:none;
  animation:confettiFall linear forwards;
}
@keyframes confettiFall{
  0%{transform:translateY(0) rotate(0);opacity:1}
  100%{transform:translateY(110vh) rotate(720deg);opacity:.2}
}

/* ============ 词生文记忆 ============ */
.btn-story{
  background:linear-gradient(135deg,rgba(255,255,255,.78),rgba(255,255,255,.45));
  -webkit-backdrop-filter:blur(16px) saturate(180%);backdrop-filter:blur(16px) saturate(180%);
  border:1px solid rgba(255,255,255,.85);color:#1f7a3d;
  box-shadow:0 6px 18px rgba(31,90,0,.12), inset 0 1px 0 rgba(255,255,255,.9), inset 0 0 0 1px rgba(88,204,2,.28);
}
.btn-story:hover{filter:none;box-shadow:0 8px 24px rgba(88,204,2,.38), inset 0 1px 0 rgba(255,255,255,.9)}
.story-meta{
  padding:11px 16px;border-radius:16px;font-size:14px;color:#5c5c5c;
  background:rgba(255,255,255,.5);-webkit-backdrop-filter:blur(14px) saturate(170%);backdrop-filter:blur(14px) saturate(170%);
  border:1px solid rgba(255,255,255,.68);box-shadow:0 4px 14px rgba(31,90,0,.08), inset 0 1px 0 rgba(255,255,255,.6);
}
.story-meta b{color:#1f9e3d}
.story-card{
  margin-top:14px;padding:24px;border-radius:26px;line-height:2.05;font-size:17px;color:#3a3a3a;
  background:rgba(255,255,255,.62);-webkit-backdrop-filter:blur(20px) saturate(190%);backdrop-filter:blur(20px) saturate(190%);
  border:1px solid rgba(255,255,255,.75);box-shadow:0 10px 34px rgba(31,90,0,.12), inset 0 1px 0 rgba(255,255,255,.75);
  animation:itemIn .4s cubic-bezier(.16,1,.3,1);
}
.story-card h2{font-size:20px;text-align:center;color:#1f1f1f;margin-bottom:14px;letter-spacing:1px}
.story-card p{margin:11px 0;text-align:justify}
.wmark{
  display:inline-block;background:linear-gradient(180deg,rgba(255,123,123,.30),rgba(255,75,75,.20));
  color:#c91f1f;font-weight:800;border-radius:8px;padding:0 6px;cursor:pointer;border:1px solid rgba(255,75,75,.45);
  transition:transform .15s cubic-bezier(.34,1.56,.64,1),box-shadow .2s;
}
.wmark:hover{box-shadow:0 2px 10px rgba(255,75,75,.35)}
.wmark:active{transform:scale(.9)}
.wphon{color:#888;font-size:.82em;font-weight:600;white-space:nowrap}
.wgloss{color:#a05b00;font-size:.85em;font-weight:600}
.story-actions{display:flex;margin-top:14px;gap:10px}
.story-actions .btn{flex:1}
/* ============ 无障碍：减少动效 ============ */
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}
/* ============ 学习日历 ============ */
.cal-nav{display:flex;align-items:center;justify-content:space-between;margin:6px 0 12px}
.cal-month{font-weight:900;font-size:17px;color:#1f1f1f}
.cal-grid{
  display:grid;grid-template-columns:repeat(7,1fr);gap:6px;padding:14px;border-radius:22px;
  background:rgba(255,255,255,.55);-webkit-backdrop-filter:blur(18px) saturate(180%);backdrop-filter:blur(18px) saturate(180%);
  border:1px solid rgba(255,255,255,.68);box-shadow:0 8px 26px rgba(31,90,0,.10), inset 0 1px 0 rgba(255,255,255,.65);
}
.cal-dow{text-align:center;font-size:12px;color:#9a9a9a;font-weight:700;padding:2px 0}
.cal-cell{
  aspect-ratio:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  border-radius:12px;font-weight:800;cursor:pointer;position:relative;color:#4a4a4a;
  transition:transform .15s cubic-bezier(.34,1.56,.64,1),box-shadow .2s;
}
.cal-cell:not(.empty):hover{transform:scale(1.1)}
.cal-cell .cday{font-size:14px;line-height:1}
.cal-cell .cnt{font-size:9px;color:#fff;font-weight:800;margin-top:2px}
.cal-cell.empty{background:transparent;cursor:default}
.c0{background:rgba(255,255,255,.4);color:#aaa}
.c1{background:rgba(124,227,77,.38)}
.c2{background:rgba(88,204,2,.55)}
.c3{background:rgba(63,175,0,.75)}
.c4{background:linear-gradient(180deg,#3faf00,#2f7a00)}
.cal-cell.today{outline:2px solid #1cb0f6;outline-offset:-1px}
.cal-cell.sel{outline:2px solid #ff9600;outline-offset:-1px}
.cal-legend{display:flex;align-items:center;gap:5px;justify-content:center;margin:10px 0 6px;font-size:11px;color:#8a8a8a}
.lg{width:14px;height:14px;border-radius:4px;display:inline-block}
.lg0{background:rgba(255,255,255,.5);border:1px solid rgba(0,0,0,.08)}
.lg1{background:rgba(124,227,77,.38)}
.lg2{background:rgba(88,204,2,.55)}
.lg3{background:rgba(63,175,0,.75)}
.lg4{background:#2f7a00}
.cal-detail{
  margin-top:12px;padding:14px 16px;border-radius:16px;font-size:14px;color:#4a4a4a;
  background:rgba(255,255,255,.5);-webkit-backdrop-filter:blur(14px) saturate(170%);backdrop-filter:blur(14px) saturate(170%);
  border:1px solid rgba(255,255,255,.68);box-shadow:0 4px 14px rgba(31,90,0,.08), inset 0 1px 0 rgba(255,255,255,.6);
}
.cal-detail b{color:#1cb0f6}

/* ============ 设置：AI 接入 ============ */
.set-group-title{font-size:14px;font-weight:900;color:#1f7a3d;margin:16px 0 4px;letter-spacing:.5px}
.set-row.col{flex-direction:column;align-items:stretch;gap:4px}
.set-row.col .input{margin:2px 0}
.api-test{font-size:13px;font-weight:700;color:#1cb0f6;min-height:20px}
/* ============ AI 接入子页面 ============ */
.set-row.clickable{cursor:pointer;transition:transform .15s cubic-bezier(.34,1.56,.64,1),box-shadow .2s}
.set-row.clickable:hover{box-shadow:0 6px 20px rgba(31,90,0,.14), inset 0 1px 0 rgba(255,255,255,.6)}
.set-row.clickable:active{transform:scale(.98)}
.chevron{color:#9a9a9a;font-weight:700}
.chevron.ok{color:#1f9e3d}
.provider-chips{margin:4px 0 8px}
.api-status{
  padding:12px 16px;border-radius:16px;font-size:14px;font-weight:700;color:#4a4a4a;margin-bottom:8px;
  background:rgba(255,255,255,.55);-webkit-backdrop-filter:blur(14px) saturate(170%);backdrop-filter:blur(14px) saturate(170%);
  border:1px solid rgba(255,255,255,.68);box-shadow:0 4px 14px rgba(31,90,0,.08), inset 0 1px 0 rgba(255,255,255,.6);
}
.tutorial{margin-top:4px}
.tutorial details{
  margin:8px 0;padding:12px 14px;border-radius:16px;
  background:rgba(255,255,255,.5);-webkit-backdrop-filter:blur(14px) saturate(170%);backdrop-filter:blur(14px) saturate(170%);
  border:1px solid rgba(255,255,255,.68);box-shadow:0 4px 14px rgba(31,90,0,.08), inset 0 1px 0 rgba(255,255,255,.6);
}
.tutorial summary{cursor:pointer;font-weight:800;color:#1f1f1f;font-size:15px}
.tutorial p{font-size:13px;color:#5c5c5c;line-height:1.8;margin-top:8px}
.tutorial code{background:rgba(28,176,246,.14);color:#1273a6;border-radius:6px;padding:1px 6px;font-size:12px}
.tutorial a{color:#1cb0f6;word-break:break-all}
/* ============ 首页统计卡（可点击） ============ */
.stat.clickable{cursor:pointer;transition:transform .15s cubic-bezier(.34,1.56,.64,1),opacity .15s;border-radius:14px;padding:6px 2px}
.stat.clickable:hover{background:rgba(28,176,246,.08)}
.stat.clickable:active{transform:scale(.93)}

/* ============ 词库：电子书架 ============ */
.shelf-actions{display:flex;margin:4px 0 14px;gap:8px}
.bookshelf{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:16px;padding:18px 14px;
  border-radius:24px;
  background:linear-gradient(180deg,rgba(120,90,50,.10),rgba(120,90,50,.04));
  border:1px solid rgba(255,255,255,.5);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.book{cursor:pointer;text-align:center;animation:itemIn .35s cubic-bezier(.16,1,.3,1)}
.book-cover{
  position:relative;height:150px;border-radius:6px 12px 12px 6px;color:#fff;padding:14px 10px 10px 18px;
  display:flex;flex-direction:column;justify-content:space-between;text-align:left;
  box-shadow:0 10px 22px rgba(0,0,0,.22), inset 0 1px 0 rgba(255,255,255,.35);
  transition:transform .18s cubic-bezier(.34,1.56,.64,1),box-shadow .2s;
}
.book-cover::after{content:'';position:absolute;top:0;right:6px;bottom:0;width:3px;background:rgba(255,255,255,.18)}
.book:hover .book-cover{transform:translateY(-5px) rotate(-1.5deg);box-shadow:0 16px 30px rgba(0,0,0,.28), inset 0 1px 0 rgba(255,255,255,.35)}
.book:active .book-cover{transform:scale(.95)}
.book-spine{position:absolute;left:0;top:0;bottom:0;width:8px;background:rgba(0,0,0,.22);border-radius:6px 0 0 6px}
.book-title{font-size:15px;font-weight:900;line-height:1.35;word-break:break-all;text-shadow:0 1px 2px rgba(0,0,0,.3)}
.book-count{font-size:12px;font-weight:700;opacity:.9}
.book-bar{display:flex;justify-content:center;gap:6px;margin-top:8px}

/* ============ 导入 ============ */
.imp-preview{
  margin-top:10px;padding:10px 12px;border-radius:14px;font-size:13px;color:#4a4a4a;
  background:rgba(28,176,246,.10);border:1px solid rgba(28,176,246,.25);
}
.imp-preview b{color:#1cb0f6}
.imp-words{margin:8px 0;line-height:1.8;max-height:140px;overflow-y:auto;font-size:13px;color:#6b6b6b}
select.input{appearance:auto;height:44px}
/* ================= 个性化主题系统（CSS 变量） ================= */
:root{
  --ui-scale:1;
  --glass-opacity:.55;
  --glass-blur:18px;
  --bg-blur:0px;
  --bg-opacity:1;
  --accent:#58cc02;
  --c-strong:#1f1f1f; --c-main:#3a3a3a; --c-soft:#6f6f6f; --c-faint:#9a9a9a;
  --glass:rgba(255,255,255,var(--glass-opacity));
  --glass-border:rgba(255,255,255,.68);
  --glass-high:rgba(255,255,255,.75);
}
html{zoom:var(--ui-scale)}
html[data-theme="night"]{
  --c-strong:#f2f2f2; --c-main:#d8d8d8; --c-soft:#a8a8a8; --c-faint:#808080;
  --glass:rgba(26,31,34,var(--glass-opacity));
  --glass-border:rgba(255,255,255,.14);
  --glass-high:rgba(255,255,255,.10);
  color-scheme:dark;
}
body{color:var(--c-main)}
html[data-theme="night"] body{background:#0d1215}

/* 背景层：模糊 / 透明度 / 自定义图片 */
.bg{filter:blur(var(--bg-blur)) brightness(1);opacity:var(--bg-opacity)}
html[data-theme="night"] .bg{background:linear-gradient(160deg,#16201c 0%,#0f1620 45%,#131a28 100%)}
html[data-theme="night"] .blob{opacity:.22}
html[data-theme="night"] .bg::after{opacity:.45}
.bg.has-image{background-size:cover;background-position:center}
.bg.has-image .blob,.bg.has-image::after{display:none}

/* 玻璃表面统一使用变量 */
.glass,.stats,.flip-face,.witem,.set-row,.story-card,.fb,.cal-grid,.cal-detail,.modal-box,.api-status,.tutorial details,.story-meta,.streak,.quick-glass,.bg-preview,.imp-preview{
  background:var(--glass);
  border-color:var(--glass-border);
}
/* 文本颜色统一 */
.brand,.greeting,.title,.word,.word-sm,.wword,.modal-title,.cal-month,.res-title,.story-card h2,.tutorial summary,.fb-title{color:var(--c-strong)}
.hint,.wmeta,.stat .lbl,.cal-dow,.empty,.chevron,.wchev,.api-test{color:var(--c-faint)}
.meaning,.wmean,.fb-sub,.cal-detail,.story-card,.tutorial p,.set-row,.input,.wph,.sub{color:var(--c-main)}
.phonetic{color:var(--c-soft)}
.input,.chip,.btn-gray{background:var(--glass);border-color:var(--glass-border);color:var(--c-main)}
.btn-gray{box-shadow:0 4px 14px rgba(0,0,0,.08), inset 0 1px 0 var(--glass-high)}
.btn-story{background:linear-gradient(135deg,color-mix(in srgb,var(--glass),white 6%),var(--glass));border-color:var(--glass-border);color:color-mix(in srgb,var(--accent),black 22%);box-shadow:0 6px 18px rgba(0,0,0,.10), inset 0 1px 0 var(--glass-high), inset 0 0 0 1px color-mix(in srgb,var(--accent),transparent 72%)}
html[data-theme="night"] .btn-story{color:color-mix(in srgb,var(--accent),white 30%)}

/* 主色（accent）驱动的元素 */
.btn-green{
  background:linear-gradient(180deg,color-mix(in srgb,var(--accent),white 32%),color-mix(in srgb,var(--accent),black 22%));
  box-shadow:0 6px 16px color-mix(in srgb,var(--accent),transparent 62%), inset 0 1px 0 rgba(255,255,255,.42);
}
.btn-green:hover{filter:brightness(1.05)}
.progress-fill{
  background:linear-gradient(90deg,color-mix(in srgb,var(--accent),white 28%),var(--accent) 60%,color-mix(in srgb,var(--accent),black 20%));
  box-shadow:0 0 12px color-mix(in srgb,var(--accent),transparent 40%);
}
.chip.on{
  background:linear-gradient(180deg,color-mix(in srgb,var(--accent),white 28%),color-mix(in srgb,var(--accent),black 18%));
  border-color:transparent;box-shadow:0 4px 12px color-mix(in srgb,var(--accent),transparent 65%);
}
.feedback-ok .flip-face{border-color:var(--accent);box-shadow:0 0 0 4px color-mix(in srgb,var(--accent),transparent 72%), 0 12px 36px color-mix(in srgb,var(--accent),transparent 72%), inset 0 1px 0 var(--glass-high)}
@keyframes pulseGlow{
  0%,100%{box-shadow:0 6px 16px color-mix(in srgb,var(--accent),transparent 62%), inset 0 1px 0 rgba(255,255,255,.42)}
  50%{box-shadow:0 6px 30px color-mix(in srgb,var(--accent),transparent 35%), 0 0 0 6px color-mix(in srgb,var(--accent),transparent 88%), inset 0 1px 0 rgba(255,255,255,.42)}
}
.btn-icon,.btn-icon-sm{background:linear-gradient(180deg,#6ed3ff,#1593d6)}
.stat .num,.score{color:var(--accent)}
#startBtn:not(:disabled){animation:pulseGlow 2.2s ease-in-out infinite}

/* 滑块 */
input[type=range]{accent-color:var(--accent);width:130px;flex:none}

/* ================= 主页快捷个性化面板 ================= */
.quick-glass{
  margin:12px 0;padding:4px 16px 12px;border-radius:20px;
  background:var(--glass);border:1px solid var(--glass-border);
  -webkit-backdrop-filter:blur(var(--glass-blur)) saturate(180%);backdrop-filter:blur(var(--glass-blur)) saturate(180%);
  box-shadow:0 8px 26px rgba(0,0,0,.08), inset 0 1px 0 var(--glass-high);
}
.quick-glass summary{cursor:pointer;font-weight:800;color:var(--c-strong);padding:12px 0;display:flex;align-items:center;justify-content:space-between}
.quick-glass .chevron{font-size:13px}
.qrow{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:7px 0;font-size:14px;color:var(--c-main)}
.qrow span{flex:1}
.qrow .chip{flex:none}

/* ================= 外观子页面 ================= */
.swatches{display:flex;flex-wrap:wrap;gap:10px;padding:6px 0}
.swatch{
  width:38px;height:38px;border-radius:50%;cursor:pointer;border:3px solid rgba(255,255,255,.7);
  box-shadow:0 3px 10px rgba(0,0,0,.18);transition:transform .15s cubic-bezier(.34,1.56,.64,1);
}
.swatch:hover{transform:scale(1.15)}
.swatch.on{border-color:var(--c-strong);outline:2px solid var(--accent)}
.bg-preview{
  min-height:70px;margin:8px 0;border-radius:16px;display:flex;align-items:center;justify-content:center;
  background-size:cover;background-position:center;border:1px dashed var(--glass-border);overflow:hidden;
}
.bg-preview.has{background-image:var(--bg-preview-img)}
/* ============ 取色 / Pickr ============ */
.pickr-host{flex:none}
.pickr-host .pcr-button{width:42px;height:42px;border-radius:12px;box-shadow:0 3px 10px rgba(0,0,0,.18)}
.sample-overlay{position:fixed;inset:0;z-index:60;background:rgba(0,0,0,.5);display:flex;align-items:center;justify-content:center;padding:20px;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.sample-box{background:var(--glass);border:1px solid var(--glass-border);border-radius:20px;padding:18px;max-width:400px;width:100%;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.sample-title{font-weight:800;color:var(--c-strong);margin-bottom:10px;text-align:center}
.sample-box canvas{width:100%;border-radius:12px;cursor:crosshair;margin-bottom:10px;background:#fff}
/* ============ 移动端与交互优化（GitHub 最佳实践） ============ */
html{-webkit-text-size-adjust:100%}
body{min-height:100vh;min-height:100dvh}
.screen{min-height:100vh;min-height:100dvh;padding-bottom:calc(40px + env(safe-area-inset-bottom))}
/* 消除移动端点按延迟/双击缩放 */
.btn,.chip,.book,.stat.clickable,.witem.compact,.cal-cell,.wmark,.btn-icon,.btn-icon-sm,.link{touch-action:manipulation}
/* 键盘可访问性焦点 */
.btn:focus-visible,.input:focus-visible,.chip:focus-visible,select.input:focus-visible,.btn-icon:focus-visible,.btn-icon-sm:focus-visible,.link:focus-visible{outline:3px solid color-mix(in srgb,var(--accent),transparent 55%);outline-offset:2px}
.input::placeholder{color:var(--c-faint)}
.story-card{word-break:break-word}
/* 夜间模式细节补全 */
html[data-theme="night"] .c0{background:rgba(255,255,255,.06);color:var(--c-faint)}
html[data-theme="night"] .res-row{border-color:rgba(255,255,255,.10)}
html[data-theme="night"] .import-box summary{color:var(--c-soft)}
html[data-theme="night"] .toast{background:rgba(0,0,0,.8)}
/* iPhone 底部安全区 */
.toast{bottom:calc(32px + env(safe-area-inset-bottom))}
/* 词生文记忆：未接入 AI 时的提示 */
.story-need-ai{text-align:center;padding:14px 4px}
.story-need-ai p{color:var(--c-main);font-size:15px;line-height:1.7;margin:10px 0}

/* ============ 词生文记忆：选词 ============ */
.spick-bar{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:4px 0 8px}
.spick-bar span{font-size:14px;font-weight:800;color:var(--c-main)}
.spick-list{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px}
.spick{
  display:inline-flex;align-items:center;gap:6px;padding:8px 12px;border-radius:999px;cursor:pointer;
  background:var(--glass);border:1px solid var(--glass-border);color:var(--c-main);font-size:14px;font-weight:700;
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  transition:transform .15s cubic-bezier(.34,1.56,.64,1),background .15s;
}
.spick:active{transform:scale(.93)}
.spick input{accent-color:var(--accent);width:16px;height:16px;cursor:pointer}
.spick:has(input:checked){background:color-mix(in srgb,var(--accent),transparent 82%);border-color:var(--accent);color:color-mix(in srgb,var(--accent),black 20%)}
/* 词库书架：管理开关 */
.shelf-manage{display:flex;justify-content:flex-end;margin:0 0 10px}
/* ============ 修复：手机端日历溢出 + 词库切换 + 注释截断 ============ */
.cal-grid{min-width:0;width:100%}
.cal-cell{min-width:0}
@media (max-width:380px){
  .cal-grid{gap:4px;padding:10px}
  .cal-cell .cday{font-size:12px}
  .cal-cell .cnt{font-size:8px;margin-top:1px}
  .cal-dow{font-size:11px;padding:1px 0}
}
.deck-picker{display:flex;align-items:center;gap:10px;margin:10px 0 4px;padding:10px 12px;border-radius:16px}
.deck-picker .dp-label{font-size:13px;font-weight:800;color:var(--c-strong);white-space:nowrap;flex:none}
.deck-picker .dp-select{flex:1;min-width:0;padding:9px 10px;border-radius:12px;font-size:14px;background:rgba(255,255,255,.6);border:1px solid rgba(255,255,255,.75);color:var(--c-main);outline:none}
.book-badge{position:absolute;top:8px;right:8px;z-index:2;background:var(--accent,#58cc02);color:#fff;font-size:10px;font-weight:800;padding:2px 7px;border-radius:99px;box-shadow:0 2px 6px rgba(0,0,0,.25)}

.book-badge-builtin{top:auto;bottom:8px;left:8px;right:auto;background:rgba(0,0,0,.42)}

.progress-text{font-size:12px;font-weight:800;color:var(--c-faint,#9a9a9a);min-width:44px;text-align:center;white-space:nowrap}