/* ===== 邪修背单词 · 样式 ===== */
:root{
  --primary:#6c5ce7; --primary-dark:#5a4bd1; --primary-light:#a29bfe;
  --accent:#ff9f43; --accent-dark:#e8872a;
  --success:#00b894; --success-light:#55efc4;
  --danger:#e17055; --danger-light:#ff7675;
  --gold:#fdcb6e;
  --bg:#eef1f8; --card:#ffffff; --card2:#f7f9ff;
  --text:#2d3436; --text-light:#636e72; --text-lighter:#a0a8b8;
  --radius:16px; --shadow:0 6px 24px rgba(108,92,231,.10);
  /* 底部导航预留高度（含安全区），content 不被 fixed 导航遮挡 */
  --nav-h:74px; --nav-safe:env(safe-area-inset-bottom);
}
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{height:100%}
body{
  font-family:"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;
  background:linear-gradient(160deg,#eef1f8 0%,#e8e3fb 55%,#fdeeda 100%);
  color:var(--text); min-height:100vh;
  /* 预留底部导航高度（含安全区），确保页面最底部文字不被截断 */
  /* 注意：body 不能固定 height:100%（会锁定高度致 padding-bottom 失效），须让内容自然撑高 */
  padding-bottom:calc(var(--nav-h) + 8px + var(--nav-safe));
  overflow-x:hidden;
}
/* 背景装饰 */
.bg-decor{position:fixed;inset:0;pointer-events:none;z-index:0;overflow:hidden}
.cloud{position:absolute;font-size:44px;opacity:.35;animation:drift 40s linear infinite}
.c1{top:6%;left:-60px;animation-delay:0s}
.c2{top:22%;left:-80px;animation-delay:14s;font-size:60px}
.c3{top:40%;left:-70px;animation-delay:28s}
@keyframes drift{from{transform:translateX(-80px)}to{transform:translateX(110vw)}}
.sun{position:absolute;top:20px;right:24px;font-size:56px;opacity:.55;animation:spin 30s linear infinite}
@keyframes spin{from{transform:rotate(0)}to{transform:rotate(360deg)}}
#app{position:relative;z-index:1;max-width:680px;margin:0 auto;padding:16px}

/* 音效开关 */
.sound-toggle{position:fixed;top:14px;right:14px;z-index:99;width:40px;height:40px;border:none;border-radius:50%;
  background:#fff;box-shadow:var(--shadow);font-size:20px;cursor:pointer}
.sound-toggle.off{filter:grayscale(1);opacity:.6}

/* ===== 通用 ===== */
.page{display:none;animation:fadeIn .35s ease}
.page.active{display:block}
/* 页面内容底部额外预留，防最后一段文字被底部导航遮挡 */
.page{padding-bottom:calc(var(--nav-safe) + 4px)}
.hidden{display:none !important}
@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px;margin-bottom:14px}
.card-title{font-weight:700;font-size:15px;margin-bottom:10px;color:var(--text)}
.page-head{margin:8px 0 14px}
.page-head h2{font-size:22px;color:var(--primary);margin-bottom:4px}
.page-sub{font-size:13px;color:var(--text-light)}
.btn-back{border:none;background:rgba(255,255,255,.85);width:36px;height:36px;border-radius:50%;
  font-size:16px;cursor:pointer;box-shadow:0 2px 8px rgba(0,0,0,.08);flex:none}

/* ===== 首页 ===== */
.hero{background:linear-gradient(135deg,#6c5ce7,#a29bfe 60%,#ff9f43 130%);
  border-radius:20px;padding:18px;color:#fff;display:flex;flex-wrap:wrap;gap:14px;align-items:center;
  box-shadow:0 10px 30px rgba(108,92,231,.3);position:relative;overflow:hidden}
.hero::after{content:"✨";position:absolute;font-size:64px;right:12px;top:-6px;opacity:.25;animation:twinkle 3s ease-in-out infinite}
@keyframes twinkle{0%,100%{transform:scale(1);opacity:.25}50%{transform:scale(1.2);opacity:.5}}
.hero-avatar{width:64px;height:64px;border-radius:50%;background:rgba(255,255,255,.25);display:flex;
  align-items:center;justify-content:center;font-size:38px;animation:bounce 2.4s ease-in-out infinite}
@keyframes bounce{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
.hero-info{flex:1;min-width:150px}
.hero-name{font-size:20px;font-weight:800}
.acct-badge{font-size:12px;font-weight:600;background:rgba(255,255,255,.25);border-radius:99px;
  padding:2px 10px;vertical-align:2px}
.hero-level{font-size:13px;opacity:.95;margin:3px 0 6px}
.xp-bar{height:8px;background:rgba(255,255,255,.3);border-radius:99px;overflow:hidden}
.xp-fill{height:100%;background:linear-gradient(90deg,#fdcb6e,#ff9f43);border-radius:99px;transition:width .6s ease}
.xp-text{font-size:11px;margin-top:3px;opacity:.9}
.hero-stats{display:flex;gap:8px;width:100%}
.stat{flex:1;background:rgba(255,255,255,.16);border-radius:12px;padding:8px 6px;text-align:center}
.stat-icon{font-size:18px}
.stat-num{font-size:17px;font-weight:800}
.stat-label{font-size:10px;opacity:.9}
.quick-actions{display:flex;gap:10px;margin:14px 0}
.login-tip{margin-bottom:12px;background:linear-gradient(135deg,#f0edff,#e6fbf4);border:1.5px dashed #c8c0f0;
  border-radius:12px;padding:11px 14px;font-size:13.5px;font-weight:600;color:var(--primary-d);
  cursor:pointer;text-align:center}
.login-tip:active{opacity:.75}
.action-btn{flex:1;border:none;border-radius:14px;padding:13px 8px;font-size:14px;font-weight:700;cursor:pointer;
  background:#fff;color:var(--text);box-shadow:var(--shadow);transition:transform .15s}
.action-btn:active{transform:scale(.95)}
.action-btn.primary{background:linear-gradient(135deg,#ff9f43,#f368e0);color:#fff}
.action-btn .badge-num{display:inline-block;min-width:18px;background:var(--danger);color:#fff;border-radius:99px;
  font-size:11px;padding:1px 5px;margin-left:3px}
.daily-task .task-item{display:flex;align-items:center;gap:10px;padding:9px 4px;border-bottom:1px dashed #eee;font-size:14px}
.daily-task .task-item:last-child{border-bottom:none}
.task-check{width:24px;height:24px;border-radius:8px;border:2px solid #dfe3f0;flex:none;display:flex;
  align-items:center;justify-content:center;font-size:13px;color:#fff;background:#fff;transition:.3s}
.task-check.done{background:var(--success);border-color:var(--success)}
.task-reward{text-align:center;font-size:12px;color:var(--text-light);margin-top:8px;background:#fff7ec;
  border-radius:10px;padding:6px;color:var(--accent-dark);font-weight:700}
.memo-tip{font-size:13px;color:var(--text-light);line-height:1.7}

/* ===== 地图 ===== */
.island-map{display:flex;flex-direction:column;gap:12px}
.island{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:14px;cursor:pointer;
  transition:transform .15s;position:relative}
.island:active{transform:scale(.98)}
.island-top{display:flex;align-items:center;gap:12px}
.island-emoji{width:46px;height:46px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  font-size:24px;background:var(--card2)}
.island-name{font-weight:800;font-size:16px}
.island-progress{font-size:12px;color:var(--text-light)}
.island-stars{margin-left:auto;font-size:13px;letter-spacing:1px}
.island-levels{display:flex;gap:6px;margin-top:10px;flex-wrap:wrap}
.lvl-dot{width:34px;height:34px;border-radius:10px;background:#eef0f8;display:flex;align-items:center;
  justify-content:center;font-size:12px;font-weight:700;color:var(--text-light);cursor:pointer;transition:.2s}
.lvl-dot.done{background:var(--success-light);color:#087f5b}
.lvl-dot.star{background:#ffeaa7;color:#b7791f}
.lvl-dot.locked{opacity:.4;cursor:not-allowed}
.lvl-dot.current{outline:3px solid var(--primary);outline-offset:1px}

/* ===== 游戏页 ===== */
.play-loading{text-align:center;padding:60px 0;font-size:18px;color:var(--text-light)}
.game-top{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.game-progress{flex:1;height:12px;background:#e3e6f2;border-radius:99px;overflow:hidden}
.game-progress-fill{height:100%;background:linear-gradient(90deg,var(--success),#00cec9);border-radius:99px;transition:width .4s}
.game-combo{font-size:15px;font-weight:800;color:var(--accent-dark);min-width:60px;text-align:right}
.game-info-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}
.lives{font-size:19px;letter-spacing:2px}
.game-score{font-size:22px;font-weight:800;color:var(--primary)}
/* 题目卡片 */
.q-card{background:var(--card);border-radius:20px;box-shadow:var(--shadow);padding:22px 18px;text-align:center;
  animation:cardIn .3s ease;position:relative;overflow:hidden}
@keyframes cardIn{from{opacity:0;transform:translateY(14px) scale(.97)}to{opacity:1;transform:none}}
.q-type-tag{display:inline-block;font-size:11px;background:#f0edff;color:var(--primary);border-radius:99px;
  padding:3px 10px;margin-bottom:10px;font-weight:700}
.q-word{font-size:40px;font-weight:800;color:var(--primary-dark);letter-spacing:1px;margin:8px 0 4px}
.q-word.small{font-size:30px}
.q-phon{color:var(--text-lighter);font-size:15px;margin-bottom:10px}
.q-speak-btn{border:none;background:var(--card2);border-radius:50%;width:48px;height:48px;font-size:22px;
  cursor:pointer;margin:6px auto;display:flex;align-items:center;justify-content:center;box-shadow:0 3px 10px rgba(0,0,0,.06)}
.q-speak-btn:active{transform:scale(.9)}
.q-def{font-size:20px;font-weight:700;color:var(--text);line-height:1.5;margin:14px 0}
.q-mnemonic{font-size:13px;color:var(--text-light);background:#fffaf0;border-radius:10px;padding:8px 12px;
  margin-top:12px;line-height:1.6;text-align:left}
.q-mnemonic b{color:var(--accent-dark)}
/* 选项 */
.options{display:grid;gap:10px;margin-top:16px}
.opt{border:2px solid #e6e8f2;background:#fff;border-radius:14px;padding:14px;font-size:16px;font-weight:600;
  cursor:pointer;transition:all .2s;text-align:center;animation:optIn .25s ease backwards}
.opt:nth-child(2){animation-delay:.04s}.opt:nth-child(3){animation-delay:.08s}.opt:nth-child(4){animation-delay:.12s}
@keyframes optIn{from{opacity:0;transform:scale(.92)}to{opacity:1;transform:none}}
.opt:active{transform:scale(.97)}
.opt.correct{border-color:var(--success);background:#e6fbf4;color:#087f5b;animation:pop .35s}
.opt.wrong{border-color:var(--danger);background:#ffece8;color:#c0392b;animation:shake .4s}
.opt.disabled{pointer-events:none;opacity:.7}
@keyframes pop{0%{transform:scale(1)}40%{transform:scale(1.06)}100%{transform:scale(1)}}
@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-6px)}75%{transform:translateX(6px)}}
/* 拼写输入 */
.spell-input{display:flex;gap:8px;align-items:center;justify-content:center;margin-top:14px}
#spellBox{font-size:26px;text-align:center;width:230px;padding:10px;border:2px solid #dfe3f0;border-radius:14px;
  outline:none;text-transform:lowercase;letter-spacing:3px}
#spellBox:focus{border-color:var(--primary)}
.spell-btn{border:none;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;
  border-radius:14px;padding:12px 20px;font-size:16px;font-weight:700;cursor:pointer}
.spell-feedback{font-size:14px;margin-top:10px;min-height:22px;font-weight:600}
.spell-feedback.ok{color:var(--success)}.spell-feedback.bad{color:var(--danger)}
/* 结果页 */
.play-result{text-align:center;padding:24px 0;animation:fadeIn .4s}
.result-card{background:var(--card);border-radius:22px;box-shadow:var(--shadow);padding:28px 20px;margin-bottom:16px}
.result-stars{font-size:52px;letter-spacing:8px;margin:10px 0}
.result-title{font-size:24px;font-weight:800;color:var(--primary)}
.result-sub{color:var(--text-light);font-size:14px;margin:6px 0 14px}
.result-stats{display:flex;justify-content:center;gap:22px;margin:14px 0}
.r-stat{text-align:center}
.r-stat .n{font-size:24px;font-weight:800;color:var(--primary)}
.r-stat .l{font-size:12px;color:var(--text-light)}
.result-btns{display:flex;gap:10px;justify-content:center}
.result-btns .action-btn{max-width:200px}

/* ===== 复习页 ===== */
.review-summary{display:flex;gap:12px;margin-bottom:14px}
.review-box{flex:1;background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:14px;text-align:center}
.review-box .n{font-size:26px;font-weight:800;color:var(--primary)}
.review-box .l{font-size:12px;color:var(--text-light)}
.review-card{text-align:center}
.review-controls{display:flex;gap:10px;justify-content:center;margin-top:16px}
.review-controls button{border:none;border-radius:12px;padding:12px 18px;font-size:14px;font-weight:700;cursor:pointer}
.btn-forgot{background:#ffece8;color:var(--danger)}
.btn-hard{background:#fff3e0;color:#d35400}
.btn-good{background:#e8f8ff;color:#0984e3}
.btn-easy{background:#e6fbf4;color:var(--success)}

/* ===== 单词本 ===== */
.search-bar{margin-bottom:10px}
#wordSearch{width:100%;padding:12px 16px;border:none;border-radius:14px;box-shadow:var(--shadow);
  font-size:15px;outline:none;background:#fff}
.word-filter{display:flex;gap:8px;margin-bottom:12px}
.filter-btn{border:none;border-radius:99px;padding:7px 14px;font-size:13px;background:#fff;color:var(--text-light);
  cursor:pointer;box-shadow:0 2px 8px rgba(0,0,0,.05)}
.filter-btn.active{background:var(--primary);color:#fff}
.word-list{display:flex;flex-direction:column;gap:10px}
.word-item{position:relative;background:var(--card);border-radius:14px;box-shadow:var(--shadow);padding:14px;display:flex;gap:12px;
  align-items:flex-start;cursor:pointer;transition:transform .15s, box-shadow .2s, outline .15s, background .2s}
.word-item:active{transform:scale(.98)}
/* 选中高亮：整行变色 + 阴影 + 描边 */
.word-item.selected{background:linear-gradient(135deg,#f0edff,#e8f6ff);outline:2px solid var(--primary);
  box-shadow:0 8px 22px rgba(108,92,231,.20);transform:translateY(-1px)}
.word-item.selected .word-en{color:var(--primary)}
.word-item.selected .word-def{font-weight:700}
/* 选中后灰色注释醒目化：加深加粗 + 展开完整内容 */
.word-item.selected .word-mne{color:var(--primary-d);font-weight:600;opacity:1;background:#fff;
  border:1px dashed #c8c0f0;border-radius:8px;padding:6px 9px;-webkit-line-clamp:unset;display:block;margin-top:8px}
.word-item.selected .word-sound{opacity:1;transform:scale(1.2);color:var(--accent-dark)}
.word-main{flex:1;min-width:0;position:relative;padding-bottom:4px}
.word-top{display:flex;align-items:baseline;gap:8px;flex-wrap:wrap;padding-right:26px}
.word-en{font-size:19px;font-weight:800;color:var(--primary-dark)}
.word-phon{font-size:13px;color:var(--text-lighter)}
.word-def{font-size:14px;color:var(--text);margin-top:3px}
.word-mne{font-size:12px;color:var(--text-lighter);margin-top:4px;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:all .25s}
/* 单词本例句：默认两行折叠，选中完整展开 */
.q-example.ex-w{font-size:12.5px;padding:7px 10px;margin-top:6px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:all .25s}
.q-example.ex-w .ex-head{margin-bottom:2px}
.word-item.selected .q-example.ex-w{-webkit-line-clamp:unset;display:block;background:#fff;border:1px dashed #c8c0f0}
/* 行内发音提示：右下角小喇叭（整行点击即可发音） */
.word-sound{position:absolute;right:4px;bottom:6px;font-size:13px;opacity:.45;pointer-events:none;
  transition:opacity .2s, transform .2s}
.word-item:hover .word-sound{opacity:.8}
.word-fav{font-size:20px;border:none;background:none;cursor:pointer;flex:none;position:relative;z-index:2}
.word-fav.on{animation:pop .3s}
.list-empty{text-align:center;color:var(--text-lighter);padding:40px 0}

/* ===== 荣誉殿堂（排行榜 + 成就 合并板块） ===== */
.honor-block{margin-bottom:22px}
.honor-subtitle{font-size:17px;font-weight:800;color:var(--text);margin-bottom:4px}
.honor-block .page-sub{margin-bottom:10px}

/* ===== 成就 ===== */
.badge-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.badge{background:var(--card);border-radius:16px;box-shadow:var(--shadow);padding:16px 8px;text-align:center;
  position:relative;transition:.2s}
.badge.locked{filter:grayscale(1);opacity:.45}
.badge.unlocked{animation:pop .4s}
.badge-ico{font-size:34px;margin-bottom:6px}
.badge-name{font-size:12px;font-weight:700;margin-bottom:3px}
.badge-desc{font-size:10px;color:var(--text-light);line-height:1.4}
.badge-new{position:absolute;top:8px;right:8px;background:var(--danger);color:#fff;font-size:10px;
  border-radius:99px;padding:2px 6px;animation:blink 1s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.4}}

/* ===== 论道场（留言板） ===== */
.forum-list{max-height:320px;overflow-y:auto;margin-bottom:12px;display:flex;flex-direction:column;gap:8px;
  scrollbar-width:thin}
.msg-item{background:var(--card2);border-radius:12px;padding:10px 12px;animation:fadeIn .3s}
.msg-head{display:flex;align-items:baseline;gap:8px;margin-bottom:3px}
.msg-name{font-weight:700;font-size:13px;color:var(--primary-d);word-break:break-all}
.msg-time{font-size:11px;color:var(--text-lighter);flex:none}
.msg-text{font-size:14px;color:var(--text);word-break:break-word;white-space:pre-wrap;line-height:1.6}
.msg-empty{text-align:center;color:var(--text-lighter);padding:18px 0;font-size:13px}
.forum-input{display:flex;flex-direction:column;gap:8px}
.forum-name{width:100%;padding:9px 12px;border:2px solid #e6e8f2;border-radius:10px;font-size:13px;outline:none;
  background:#fff}
.forum-text-row{display:flex;gap:8px}
#forumText{flex:1;min-width:0;padding:9px 12px;border:2px solid #e6e8f2;border-radius:10px;font-size:14px;
  outline:none;background:#fff}
#forumText:focus,.forum-name:focus{border-color:var(--primary)}
.forum-btn{border:none;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;
  border-radius:10px;padding:0 18px;font-size:14px;font-weight:700;cursor:pointer;flex:none}
.forum-btn:active{transform:scale(.95)}
.forum-foot{display:flex;justify-content:space-between;align-items:center;margin-top:12px;font-size:12px}
.forum-foot a{color:var(--primary);text-decoration:none;font-weight:600}
.forum-foot a:active{opacity:.7}
.forum-count{color:var(--text-lighter)}

/* ===== 排行榜 ===== */
.rank-list{display:flex;flex-direction:column;gap:10px}
.rank-item{background:var(--card);border-radius:14px;box-shadow:var(--shadow);padding:12px 16px;display:flex;
  align-items:center;gap:12px}
.rank-no{width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:14px;background:#eef0f8;color:var(--text-light);flex:none}
.rank-no.t1{background:linear-gradient(135deg,#ffd700,#ff9f43);color:#fff}
.rank-no.t2{background:linear-gradient(135deg,#c0c8d8,#95a5a6);color:#fff}
.rank-no.t3{background:linear-gradient(135deg,#e6a07c,#c07a52);color:#fff}
.rank-avatar{font-size:26px}
.rank-info{flex:1}
.rank-name{font-weight:700;font-size:15px}
.rank-detail{font-size:12px;color:var(--text-light)}
.rank-score{font-weight:800;color:var(--accent-dark)}
.rank-me{outline:2px solid var(--primary)}

/* ===== 设置 ===== */
.setting-row{display:flex;align-items:center;justify-content:space-between;padding:12px 0;border-bottom:1px dashed #eee;
  font-size:15px;gap:10px}
.setting-row:last-child{border-bottom:none}
.setting-row input[type=number]{width:70px;padding:6px 10px;border:2px solid #dfe3f0;border-radius:10px;font-size:14px;outline:none}
.switch{position:relative;display:inline-block;width:48px;height:26px;flex:none}
.switch input{opacity:0;width:0;height:0}
.slider{position:absolute;cursor:pointer;inset:0;background:#dfe3f0;border-radius:99px;transition:.3s}
.slider::before{content:"";position:absolute;height:20px;width:20px;left:3px;top:3px;background:#fff;border-radius:50%;transition:.3s;box-shadow:0 2px 4px rgba(0,0,0,.2)}
.switch input:checked + .slider{background:var(--primary)}
.switch input:checked + .slider::before{transform:translateX(22px)}
.mini-btn{border:none;background:var(--card2);border-radius:10px;padding:7px 12px;font-size:13px;cursor:pointer}
.mini-btn.danger{background:#ffece8;color:var(--danger)}
.about{text-align:center;color:var(--text-lighter);font-size:12px;margin-top:8px}
.contact-foot{text-align:center;margin:18px 0 2px}
.contact-foot a{color:var(--primary);text-decoration:none;font-weight:700;font-size:14px}
.contact-foot a:active{opacity:.7}

/* ===== 弹层 / Toast / 粒子 ===== */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:100;display:flex;align-items:center;justify-content:center;animation:fadeIn .25s}
.modal-card{background:#fff;border-radius:22px;padding:28px;max-width:320px;width:90%;text-align:center;animation:cardIn .35s;position:relative}
.modal-close{position:absolute;top:10px;right:10px;width:32px;height:32px;border:none;border-radius:50%;
  background:#f0f1f8;color:var(--text-light);font-size:15px;line-height:1;cursor:pointer;display:flex;
  align-items:center;justify-content:center;transition:.2s}
.modal-close:active{transform:scale(.88);background:#e3e6f2}
.modal-card .egg-ico{font-size:56px;margin-bottom:10px}
.modal-card .egg-title{font-size:20px;font-weight:800;color:var(--primary);margin-bottom:8px}
.modal-card .egg-text{font-size:14px;color:var(--text-light);line-height:1.7}
.modal-card .egg-btn{margin-top:16px;border:none;background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff;border-radius:12px;padding:10px 26px;font-size:15px;font-weight:700;cursor:pointer}
.toast{position:fixed;top:18%;left:50%;transform:translateX(-50%);background:rgba(45,52,54,.92);color:#fff;
  border-radius:99px;padding:10px 22px;font-size:14px;font-weight:700;z-index:120;box-shadow:0 8px 24px rgba(0,0,0,.25);
  animation:toastIn .3s;white-space:nowrap}
.toast.big{font-size:18px;padding:14px 28px}
@keyframes toastIn{from{opacity:0;transform:translate(-50%,-14px)}to{opacity:1;transform:translate(-50%,0)}}
/* 飘分/粒子 */
.fx-pop{position:fixed;z-index:110;font-weight:800;font-size:22px;pointer-events:none;animation:floatUp 1s ease forwards}
@keyframes floatUp{0%{opacity:1;transform:translateY(0) scale(1)}100%{opacity:0;transform:translateY(-70px) scale(1.3)}}
.fx-particle{position:fixed;z-index:110;pointer-events:none;font-size:22px;animation:particleFly .9s ease-out forwards}
@keyframes particleFly{0%{opacity:1;transform:translate(0,0) scale(1)}100%{opacity:0;transform:translate(var(--dx),var(--dy)) scale(.4) rotate(180deg)}}

/* ===== 底部导航 ===== */
.bottom-nav{position:fixed;bottom:0;left:0;right:0;z-index:90;background:rgba(255,255,255,.95);
  backdrop-filter:blur(12px);display:flex;border-top:1px solid #eef0f6;
  padding:6px 0 calc(6px + env(safe-area-inset-bottom))}
.bottom-nav .nav-item{flex:1;text-align:center;padding:6px 0;font-size:10px;color:var(--text-light);cursor:pointer;
  transition:.2s}
.bottom-nav .nav-item span{display:block;font-size:21px;margin-bottom:1px}
.bottom-nav .nav-item.active{color:var(--primary);font-weight:700}
.bottom-nav .nav-item.active span{transform:scale(1.12)}

@media (min-width:700px){ body{background-attachment:fixed} .bottom-nav{max-width:680px;margin:0 auto;border-radius:18px 18px 0 0} }

/* ===== 词库分层（按目标学） ===== */
/* 首页词库卡片 */
.lib-picker{background:linear-gradient(135deg,#fff,#f6f3ff);cursor:pointer}
.lib-picker:active{transform:scale(.99)}
.lib-badge{display:inline-block;font-size:12px;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;
  border-radius:99px;padding:2px 10px;margin-left:6px;font-weight:600}
.lib-picker-desc{font-size:13px;color:var(--text-light);line-height:1.6}
.lib-picker-foot{margin-top:8px;font-size:12px;color:var(--primary);font-weight:700}

/* 目标网格 */
.target-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.target-item{background:var(--card2);border-radius:14px;padding:14px 8px;text-align:center;cursor:pointer;
  border:2px solid transparent;transition:all .2s}
.target-item:active{transform:scale(.96)}
.target-item.active{border-color:var(--primary);background:#f0edff;box-shadow:0 4px 14px rgba(108,92,231,.18)}
.target-icon{font-size:30px}
.target-name{font-weight:800;font-size:14px;margin-top:4px}
.target-tips{font-size:11px;color:var(--text-light);margin-top:2px}

/* 词库网格 */
.lib-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.lib-item{background:var(--card2);border-radius:14px;padding:12px;cursor:pointer;border:2px solid transparent;
  transition:all .2s;position:relative}
.lib-item:active{transform:scale(.97)}
.lib-item.active{border-color:var(--success);background:#e9f9f2}
.lib-item.rec::after{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--accent),#f368e0);border-radius:14px 14px 0 0}
.lib-icon{font-size:26px}
.lib-name{font-weight:800;font-size:14px;margin-top:4px}
.rec-tag{font-size:10px;background:var(--accent);color:#fff;border-radius:99px;padding:1px 6px;margin-left:4px;vertical-align:2px}
.lib-count{font-size:12px;color:var(--primary-dark);font-weight:700;margin-top:2px}
.lib-desc{font-size:11px;color:var(--text-light);margin-top:2px}
.lib-count-num{font-weight:800;color:var(--primary)}

/* 阶段选择 */
.stage-intro{font-size:12px;color:var(--text-light);margin-bottom:12px;line-height:1.6}
.stage-grid{display:flex;gap:10px}
.stage-item{flex:1;background:var(--card2);border-radius:14px;padding:14px 8px;text-align:center;cursor:pointer;
  border:2px solid transparent;transition:all .2s}
.stage-item:active{transform:scale(.96)}
.stage-item.active{border-color:var(--primary);background:#f0edff;box-shadow:0 4px 14px rgba(108,92,231,.18)}
.stage-icon{font-size:30px}
.stage-name{font-weight:800;font-size:14px;margin-top:4px}
.stage-desc{font-size:11px;color:var(--text-light);margin-top:2px}

/* 学习信息卡 */
.target-info{margin-bottom:6px}
.tinfo-row{display:flex;justify-content:space-between;font-size:14px;padding:6px 0;border-bottom:1px dashed #eee}
.tinfo-row b{color:var(--primary-dark)}
.tinfo-progress{height:8px;background:#eef0f8;border-radius:99px;margin:12px 0 14px;overflow:hidden}
.tinfo-fill{height:100%;background:linear-gradient(90deg,var(--success),#00cec9);border-radius:99px;transition:width .5s}
.target-actions{display:flex;gap:10px;margin-top:6px}
/* 按钮自适应：彻底解决"开始本组学习"文字被截断/溢出 */
.target-actions .action-btn{
  flex:1 1 0;
  min-width:0;               /* 允许 flex 收缩到内容以下 */
  width:auto;                /* 不强制固定宽 */
  max-width:100%;            /* 不超出容器 */
  white-space:nowrap;        /* 单行显示，禁止换行 */
  box-sizing:border-box;     /* padding 计入宽度 */
  padding:13px 6px;          /* 左右留 6px 缓冲，横向压缩不蹭边 */
  font-size:14px;            /* 恢复标准字号 */
  line-height:1.1;           /* 行高略收紧，垂直不溢出 */
  overflow:visible;          /* 文字宁可外扩也不裁切（配合字体缩放） */
}
/* 极窄屏兜底：缩字号 + 收紧内边距 */
@media (max-width:400px){
  .target-actions .action-btn{font-size:12.5px;padding:12px 4px;letter-spacing:-.2px}
}
@media (max-width:340px){
  .target-actions .action-btn{font-size:11.5px;padding:11px 2px}
}
.stage-bar{font-size:12px;font-weight:700;color:var(--primary);margin-left:6px}

/* 例句（单词卡片增强） */
.q-example{font-size:13px;color:var(--text);background:#f8f6ff;border-left:3px solid var(--primary);
  border-radius:8px;padding:10px 12px;margin:10px 0;text-align:left;line-height:1.6}
.q-example .ex-tag{display:inline-block;font-size:10px;background:var(--primary);color:#fff;border-radius:99px;
  padding:1px 6px;margin-right:6px;vertical-align:1px;font-weight:700}
.q-example .ex-cn{color:var(--text-light);font-size:12.5px}
.q-example .ex-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:4px}
.q-example .ex-en .ex-word{transition:color .15s,background .15s;border-radius:3px;padding:0 1px}
.q-example .ex-en .ex-word.hl{color:var(--primary);font-weight:800;background:#f0edff}
.ex-speak-btn{border:none;background:transparent;font-size:16px;cursor:pointer;padding:2px 4px;line-height:1}
.ex-speak-btn.playing{animation:pulse 1s infinite}
@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.2)}}
.ex-empty{font-size:12.5px;color:var(--text-lighter);border-left:3px dashed #d8d3f0;
  border-radius:8px;padding:10px 12px;margin:10px 0;text-align:left;line-height:1.6}

/* 忘记密码链接 */
.forgot-link{color:var(--primary);font-size:13px;text-decoration:none;font-weight:600}
.forgot-link:active{opacity:.7}

/* 移动端适配词库网格 */
@media (max-width:380px){
  .target-grid{grid-template-columns:repeat(2,1fr)}
  .lib-grid{grid-template-columns:repeat(1,1fr)}
}