/* ============ 开屏页 ============ */
@font-face{font-family:'MSZ';src:url('../fonts/msz-subset.woff2') format('woff2');font-display:block}
#splash{position:fixed;inset:0;z-index:300;display:flex;align-items:center;justify-content:center;
  background:radial-gradient(130% 90% at 50% -10%,#2E72E8 0%,#1B5FD9 42%,#0F3480 100%);
  transition:opacity .7s ease;overflow:hidden}
#splash.hide{opacity:0;pointer-events:none}
.sp-glow{position:absolute;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,211,107,.18) 0%,rgba(255,211,107,0) 62%);
  top:-120px;right:-140px;animation:spGlow 4.6s ease-in-out infinite}
@keyframes spGlow{0%,100%{transform:scale(1)}50%{transform:scale(1.12)}}
.sp-inner{display:flex;flex-direction:column;align-items:center;text-align:center;padding:0 30px}
.sp-avatar{width:122px;height:122px;border-radius:50%;overflow:hidden;flex:none;
  border:3px solid rgba(255,214,122,.95);box-shadow:0 14px 44px rgba(4,20,60,.45),0 0 0 9px rgba(255,255,255,.08);
  animation:spPop 1s cubic-bezier(.2,1.25,.4,1) both}
.sp-avatar img{width:100%;height:100%;object-fit:cover;display:block}
.sp-line{font-family:'MSZ','STKaiti','KaiTi',serif;line-height:1.22;color:transparent;
  background:linear-gradient(180deg,#FFF3CF 8%,#FFD36B 46%,#E9A62F 78%);
  -webkit-background-clip:text;background-clip:text;
  filter:drop-shadow(0 3px 10px rgba(6,20,60,.45))}
.sp-line.l1{font-size:44px;letter-spacing:6px;margin-top:26px;animation:spUp .9s .38s cubic-bezier(.2,1.1,.4,1) both}
.sp-line.l2{font-size:56px;letter-spacing:4px;margin-top:2px;animation:spUp .9s .64s cubic-bezier(.2,1.1,.4,1) both}
.sp-num{font-size:76px;letter-spacing:0;margin-left:4px;
  background:linear-gradient(180deg,#FFFFFF 6%,#FFD36B 52%,#D98E12 92%);
  -webkit-background-clip:text;background-clip:text}
.sp-sub{margin-top:22px;font-size:12.5px;letter-spacing:3px;color:rgba(255,255,255,.66);font-weight:600;
  animation:spUp .8s .95s ease both}
@keyframes spPop{from{transform:scale(.5);opacity:0}to{transform:scale(1);opacity:1}}
@keyframes spUp{from{transform:translateY(16px);opacity:0}to{transform:none;opacity:1}}

/* ============ 坤坤公专 · 视觉系统 ============ */
:root{
  --bg:#F2F6FC;
  --bg2:#E9F0FB;
  --card:#FFFFFF;
  --ink:#0F1F38;
  --ink2:#5A6B85;
  --ink3:#96A4B8;
  --line:#E6EDF9;
  --line2:#D8E4F7;
  --primary:#1B5FD9;
  --primary-2:#3F86F5;
  --blue-soft:#EAF1FE;
  --blue-mid:#CBDBF9;
  --gold:#D99B1B;
  --gold-soft:#FCF3DE;
  --red:#E5484D;
  --red-soft:#FDECEC;
  --green:#0E9F6E;
  --green-soft:#E6F7F1;
  --shadow:0 6px 22px rgba(17,64,150,.07);
  --shadow-2:0 10px 30px rgba(17,64,150,.12);
  --r-lg:22px;
  --r-md:16px;
  --r-sm:12px;
  --sat:env(safe-area-inset-top,0px);
  --sab:env(safe-area-inset-bottom,0px);
}

*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
svg{width:18px;height:18px;display:block;flex:none}
html,body{height:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans CJK SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.5;
  -webkit-font-smoothing:antialiased;overscroll-behavior:none;
}
button{font-family:inherit;border:none;background:none;color:inherit;cursor:pointer;padding:0}
input{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

.app{height:100%;display:flex;flex-direction:column;background:
  radial-gradient(120% 60% at 50% 0%,#FFFFFF 0%,rgba(255,255,255,0) 60%),
  linear-gradient(180deg,#F7FAFF 0%,#EFF4FC 55%,#EDF3FC 100%);}
#views{flex:1;position:relative;overflow:hidden}
.view{position:absolute;inset:0;overflow-y:auto;overflow-x:hidden;-webkit-overflow-scrolling:touch;
  padding:calc(var(--sat) + 14px) 16px calc(84px + var(--sab));}
.view.nopad{padding:0 0 calc(76px + var(--sab)) 0}
.fade-in{animation:fadeUp .28s cubic-bezier(.22,.8,.3,1) both}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
@keyframes pop{0%{transform:scale(.85);opacity:0}60%{transform:scale(1.04)}100%{transform:scale(1);opacity:1}}
@keyframes breathe{0%,100%{transform:scale(1)}50%{transform:scale(1.06)}}
@keyframes shake{0%,100%{transform:translateX(0)}20%{transform:translateX(-6px)}40%{transform:translateX(6px)}60%{transform:translateX(-4px)}80%{transform:translateX(4px)}}
@keyframes floatUp{0%{opacity:0;transform:translateY(6px) scale(.9)}25%{opacity:1;transform:translateY(-2px) scale(1)}100%{opacity:0;transform:translateY(-26px) scale(1)}}
@keyframes shine{0%{background-position:-200% 0}100%{background-position:200% 0}}

/* ============ 通用组件 ============ */
.page-head{padding:6px 2px 16px;display:flex;align-items:flex-end;justify-content:space-between;gap:12px}
.page-title{font-size:27px;font-weight:800;letter-spacing:-.4px;line-height:1.15}
.page-sub{font-size:12.5px;color:var(--ink2);margin-top:6px;letter-spacing:.2px}
.head-act{width:40px;height:40px;border-radius:14px;background:#fff;box-shadow:var(--shadow);
  display:flex;align-items:center;justify-content:center;color:var(--primary);flex:none}
.sec-title{display:flex;align-items:center;justify-content:space-between;margin:22px 2px 12px}
.sec-title h3{font-size:16.5px;font-weight:750;letter-spacing:-.2px}
.sec-title .more{font-size:12.5px;color:var(--primary);font-weight:600}
.card{background:var(--card);border-radius:var(--r-lg);box-shadow:var(--shadow);padding:18px;
  border:1px solid rgba(230,237,249,.9)}
.muted{color:var(--ink2)}
.tiny{font-size:11.5px;color:var(--ink3)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:50px;padding:0 22px;
  border-radius:16px;font-size:16px;font-weight:700;letter-spacing:.3px;transition:transform .12s ease,opacity .2s}
.btn:active{transform:scale(.97)}
.btn-primary{background:linear-gradient(135deg,#3D82F2 0%,#1B5FD9 100%);color:#fff;
  box-shadow:0 10px 22px rgba(27,95,217,.28)}
.btn-ghost{background:var(--blue-soft);color:var(--primary)}
.btn-line{background:#fff;border:1.5px solid var(--line2);color:var(--ink)}
.btn-block{display:flex;width:100%}
.btn-sm{height:38px;border-radius:12px;font-size:13.5px;padding:0 14px}
.chip{display:inline-flex;align-items:center;gap:5px;height:32px;padding:0 13px;border-radius:99px;
  background:#fff;border:1px solid var(--line);color:var(--ink2);font-size:13px;font-weight:600;white-space:nowrap}
.chip.on{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:0 6px 14px rgba(27,95,217,.22)}
.chips{display:flex;gap:8px;overflow-x:auto;padding:2px 0 4px;scrollbar-width:none}
.chips::-webkit-scrollbar{display:none}
.badge{display:inline-flex;align-items:center;height:21px;padding:0 8px;border-radius:7px;font-size:10.5px;
  font-weight:700;letter-spacing:.3px;background:var(--blue-soft);color:var(--primary)}
.badge.gold{background:var(--gold-soft);color:#A9740B}
.badge.red{background:var(--red-soft);color:var(--red)}
.badge.green{background:var(--green-soft);color:var(--green)}
.row{display:flex;align-items:center;gap:10px}
.grow{flex:1;min-width:0}
.dim{opacity:.45}

/* ============ 底部导航 ============ */
.tabbar{position:fixed;left:0;right:0;bottom:0;height:calc(62px + var(--sab));padding-bottom:var(--sab);
  display:flex;align-items:stretch;background:rgba(255,255,255,.92);backdrop-filter:blur(18px);
  border-top:1px solid rgba(226,235,249,.9);z-index:60}
.tab{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  color:var(--ink3);position:relative;transition:color .2s}
.tab .tab-ico{width:23px;height:23px;display:block;transition:transform .22s cubic-bezier(.3,1.4,.5,1)}
.tab .tab-ico svg{width:23px;height:23px;display:block}
.tab .tab-txt{font-size:10.5px;font-weight:650;letter-spacing:.3px}
.tab.on{color:var(--primary)}
.tab.on .tab-ico{transform:translateY(-2px)}
.tab.on::after{content:"";position:absolute;bottom:calc(6px + var(--sab));width:4px;height:4px;border-radius:99px;background:var(--primary)}

/* ============ 思维导图 ============ */
.mm-top{flex:none;padding:calc(var(--sat) + 12px) 16px 10px;display:flex;flex-direction:column;gap:10px;
  background:linear-gradient(180deg,rgba(247,250,255,.98),rgba(247,250,255,.75) 70%,rgba(247,250,255,0));position:relative;z-index:5}
.mm-top .row1{display:flex;align-items:center;justify-content:space-between}
.mm-top .title{font-size:21px;font-weight:800;letter-spacing:-.3px}
.mm-search{display:flex;align-items:center;gap:8px;background:#fff;border-radius:14px;padding:0 12px;height:42px;
  box-shadow:var(--shadow);border:1px solid var(--line)}
.mm-search input{flex:1;border:none;outline:none;background:none;font-size:14px;color:var(--ink);min-width:0}
.mm-search input::placeholder{color:var(--ink3)}
.mm-search .clr{width:20px;height:20px;color:var(--ink3);display:none}
.mm-tools{display:flex;gap:8px;align-items:center;overflow-x:auto;scrollbar-width:none;padding-bottom:2px}
.mm-tools::-webkit-scrollbar{display:none}
.mm-btn{height:30px;padding:0 11px;border-radius:9px;background:#fff;border:1px solid var(--line);
  font-size:12px;font-weight:650;color:var(--ink2);white-space:nowrap}
.mm-btn.on{background:var(--primary);color:#fff;border-color:var(--primary)}
.mm-wrap{position:absolute;inset:0;display:flex;flex-direction:column}
.mm-viewport{flex:1;overflow:auto;padding:6px 14px 92px;scrollbar-width:none;position:relative}
.mm-viewport::-webkit-scrollbar{display:none}
.mm-stage{display:inline-block;min-width:100%;zoom:1;transform-origin:0 0}
.mm-root{display:flex;align-items:flex-start;margin-bottom:14px}
.mm-node{display:inline-flex;align-items:center;gap:5px;padding:6px 9px;border-radius:9px;background:#fff;
  border:1px solid var(--line2);font-size:12.5px;line-height:1.35;color:var(--ink);
  box-shadow:0 2px 6px rgba(17,64,150,.05);max-width:186px;position:relative;transition:transform .15s,box-shadow .2s}
.mm-node:active{transform:scale(.97)}
.mm-node .dot{width:6px;height:6px;border-radius:99px;background:var(--c);flex:none}
.mm-node.root{background:linear-gradient(135deg,var(--c),var(--c2));color:#fff;border:none;font-weight:750;
  font-size:13.5px;padding:10px 13px;box-shadow:0 6px 16px rgba(27,95,217,.22);max-width:none;white-space:nowrap}
.mm-node.root .cnt{font-size:10px;opacity:.75;font-weight:600}
.mm-node.lv2{font-weight:700;color:var(--c);border-color:color-mix(in srgb,var(--c) 28%,#fff);background:#fff}
.mm-node.leaf{color:var(--ink2);font-weight:500;font-size:12px}
.mm-node.custom{border-style:dashed;border-color:#B49BFF;background:#FAF7FF;color:#5B3BC4}
.mm-node.custom .tw{background:#EFE8FF;color:#6B45E8}
.mm-node.hit{background:#FFF6DC;border-color:#E9C46A;box-shadow:0 0 0 3px rgba(233,196,106,.28)}
.mm-node .tw{font-size:9px;color:var(--ink3);background:#F3F6FC;border-radius:5px;padding:0 4px;line-height:14px;flex:none}
.mm-node.has-k .tw{color:var(--primary);background:var(--blue-soft)}
.mm-children{display:flex;flex-direction:column;justify-content:center;padding-left:22px;margin-left:12px;position:relative}
.mm-item{position:relative;padding:4px 0}
.mm-children > .mm-item::before{content:"";position:absolute;left:-12px;top:0;bottom:0;width:1px;background:var(--line2)}
.mm-children > .mm-item:first-child::before{top:20px}
.mm-children > .mm-item:last-child::before{bottom:calc(100% - 20px)}
.mm-children > .mm-item:only-child::before{display:none}
.mm-children > .mm-item::after{content:"";position:absolute;left:-12px;top:20px;width:12px;height:1px;background:var(--line2)}
.mm-branch{display:flex;align-items:flex-start}
.mm-collapsed > .mm-children{display:none}
.mm-item.mm-collapsed .mm-node::after,.mm-root.mm-collapsed .mm-node::after{content:"";display:none}
.mm-hint{position:absolute;left:50%;bottom:calc(80px + var(--sab));transform:translateX(-50%);
  font-size:11px;color:var(--ink3);background:rgba(255,255,255,.9);border:1px solid var(--line);
  padding:5px 12px;border-radius:99px;white-space:nowrap;pointer-events:none;transition:opacity .5s}
.mm-legend{display:flex;gap:10px;flex-wrap:wrap;margin:8px 2px 0}
.mm-legend span{font-size:11px;color:var(--ink3);display:flex;align-items:center;gap:4px}
.mm-legend i{width:7px;height:7px;border-radius:2px;display:block}

/* ============ 知识查询 ============ */
.k-list{display:flex;flex-direction:column;gap:10px;margin-top:12px}
.k-card{background:#fff;border-radius:16px;padding:14px 15px;box-shadow:0 4px 14px rgba(17,64,150,.05);
  border:1px solid rgba(230,237,249,.9);display:flex;gap:12px;align-items:flex-start;transition:transform .14s}
.k-card:active{transform:scale(.985)}
.k-ico{width:38px;height:38px;border-radius:12px;background:var(--blue-soft);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;flex:none}
.k-title{font-size:15px;font-weight:700;line-height:1.4;letter-spacing:-.1px}
.k-desc{font-size:12.5px;color:var(--ink2);margin-top:5px;line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.k-meta{display:flex;gap:6px;margin-top:8px;flex-wrap:wrap;align-items:center}
.k-empty{text-align:center;padding:70px 20px;color:var(--ink3);font-size:13.5px}
.k-tags{display:flex;gap:6px;flex-wrap:wrap}
.tag{font-size:10.5px;color:var(--ink2);background:#F4F7FD;border-radius:6px;padding:2px 7px;font-weight:600}
.hl{color:var(--primary);font-weight:700;background:rgba(63,134,245,.12);border-radius:3px;padding:0 1px}

.k-detail{position:fixed;inset:0;background:#fff;z-index:90;display:flex;flex-direction:column;
  animation:slideIn .26s cubic-bezier(.22,.8,.3,1)}
@keyframes slideIn{from{transform:translateX(28px);opacity:.6}to{transform:none;opacity:1}}
.kd-head{display:flex;align-items:center;gap:10px;padding:calc(var(--sat) + 10px) 14px 12px;
  border-bottom:1px solid var(--line);background:rgba(255,255,255,.96);backdrop-filter:blur(12px)}
.kd-head .t{flex:1;font-size:15px;font-weight:750;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.kd-body{flex:1;overflow-y:auto;padding:18px 18px calc(28px + var(--sab))}
.kd-body h1{font-size:22px;line-height:1.35;letter-spacing:-.4px;margin-bottom:10px;font-weight:800}
.kd-sec{margin-top:20px}
.kd-sec .lab{display:flex;align-items:center;gap:7px;font-size:12.5px;font-weight:800;color:var(--primary);
  letter-spacing:.4px;margin-bottom:8px}
.kd-sec .lab::before{content:"";width:3px;height:13px;border-radius:2px;background:var(--primary)}
.kd-sec .txt{font-size:15px;line-height:1.78;color:#22344E;white-space:pre-wrap}
.kd-sec.law .txt{font-size:13.5px;line-height:1.7;color:#3B4D66;background:#F7FAFF;border:1px solid var(--line);
  border-radius:12px;padding:12px 13px}
.kd-sec.warn .lab{color:var(--red)}
.kd-sec.warn .lab::before{background:var(--red)}
.kd-sec.warn .txt{background:var(--red-soft);border-radius:12px;padding:12px 13px;font-size:14px}
.kd-sec.mnemo .lab{color:var(--gold)}
.kd-sec.mnemo .lab::before{background:var(--gold)}
.kd-sec.mnemo .txt{background:var(--gold-soft);border-radius:12px;padding:12px 13px;font-size:14px;color:#6B4E0B}

/* ============ 每日练习 ============ */
.hero{position:relative;border-radius:26px;padding:20px;color:#fff;overflow:hidden;
  background:linear-gradient(135deg,#2E72E8 0%,#1B5FD9 55%,#1549AE 100%);
  box-shadow:0 16px 34px rgba(27,95,217,.26)}
.hero::after{content:"";position:absolute;right:-40px;top:-50px;width:170px;height:170px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.22),rgba(255,255,255,0) 70%)}
.hero::before{content:"";position:absolute;left:-30px;bottom:-70px;width:150px;height:150px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.12),rgba(255,255,255,0) 70%)}
.hero .date{font-size:12px;opacity:.8;letter-spacing:.5px;font-weight:600}
.hero .big{font-size:23px;font-weight:800;margin-top:6px;letter-spacing:-.3px;position:relative}
.hero .desc{font-size:12.5px;opacity:.82;margin-top:6px;line-height:1.6;position:relative;max-width:76%}
.hero .cta{position:relative;margin-top:16px;display:flex;gap:10px}
.hero .cta .btn{height:44px;border-radius:14px;font-size:14.5px}
.hero .bwhite{background:#fff;color:var(--primary);box-shadow:0 8px 18px rgba(10,40,100,.18)}
.hero .bghost{background:rgba(255,255,255,.15);color:#fff;border:1px solid rgba(255,255,255,.25)}
.hero .ringwrap{position:absolute;right:16px;top:18px;width:78px;height:78px}
.hero .ringwrap svg{width:78px;height:78px;display:block}
.hero .ringwrap .num{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;
  font-size:17px;font-weight:800}
.hero .ringwrap .num small{font-size:9px;font-weight:600;opacity:.8;letter-spacing:.3px}

.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}
.stat{background:#fff;border-radius:16px;padding:13px 10px;text-align:center;box-shadow:var(--shadow);
  border:1px solid rgba(230,237,249,.9)}
.stat .v{font-size:20px;font-weight:800;letter-spacing:-.3px;color:var(--primary)}
.stat .l{font-size:10.5px;color:var(--ink3);margin-top:3px;font-weight:600}

.week{display:flex;align-items:flex-end;justify-content:space-between;gap:8px;height:96px;padding:0 4px}
.week .day{flex:1;display:flex;flex-direction:column;align-items:center;gap:6px;height:100%;justify-content:flex-end}
.week .bar{width:100%;max-width:26px;border-radius:8px 8px 4px 4px;background:var(--blue-mid);min-height:6px;
  transition:height .5s cubic-bezier(.22,.8,.3,1);position:relative}
.week .bar.fill{background:linear-gradient(180deg,#5A96F7,#1B5FD9)}
.week .bar .p{position:absolute;top:-16px;left:50%;transform:translateX(-50%);font-size:9px;color:var(--ink3);font-weight:700}
.week .lb{font-size:10px;color:var(--ink3);font-weight:600}
.week .day.today .lb{color:var(--primary);font-weight:800}

.mod-list{display:flex;flex-direction:column;gap:12px;margin-top:12px}
.mod-item{display:flex;align-items:center;gap:12px}
.mod-item .nm{font-size:13px;font-weight:650;width:66px;flex:none}
.mod-item .track{flex:1;height:8px;border-radius:99px;background:#EAF0FA;overflow:hidden}
.mod-item .fill{height:100%;border-radius:99px;background:linear-gradient(90deg,#5A96F7,#1B5FD9);transition:width .6s}
.mod-item .pc{font-size:11.5px;color:var(--ink3);width:34px;text-align:right;font-weight:700}

.wrong-entry{display:flex;align-items:center;gap:12px;margin-top:14px;padding:15px 16px;border-radius:18px;
  background:linear-gradient(135deg,#FFF8F0,#FFF3E6);border:1px solid #F7E3C6}
.wrong-entry .ic{width:40px;height:40px;border-radius:12px;background:#FCE7C8;color:#B4720C;
  display:flex;align-items:center;justify-content:center;flex:none}
.wrong-entry .t{font-size:14px;font-weight:750;color:#7A4A06}
.wrong-entry .s{font-size:11.5px;color:#A9793A;margin-top:2px}

/* ============ 答题器 ============ */
.quiz{position:fixed;inset:0;z-index:95;background:var(--bg);display:flex;flex-direction:column;
  animation:slideIn .24s ease-out}
.quiz-top{padding:calc(var(--sat) + 8px) 14px 10px;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line)}
.quiz-top .l1{display:flex;align-items:center;gap:10px}
.quiz-top .qidx{font-size:12.5px;font-weight:750;color:var(--ink2);white-space:nowrap}
.quiz-top .qidx b{color:var(--primary);font-size:15px}
.quiz-top .close{width:32px;height:32px;border-radius:10px;background:#F2F6FC;display:flex;align-items:center;justify-content:center;color:var(--ink2)}
.quiz-progress{height:5px;border-radius:99px;background:#E8EEF9;margin-top:10px;overflow:hidden}
.quiz-progress i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,#5A96F7,#1B5FD9);
  transition:width .35s cubic-bezier(.22,.8,.3,1)}
.quiz-hud{display:flex;align-items:center;gap:10px;margin-top:9px;font-size:11.5px;color:var(--ink2);font-weight:650}
.hearts{display:flex;gap:3px}
.hrt{width:13px;height:13px;color:#F0747A;transition:transform .2s,opacity .3s}
.shake{animation:shake .4s}
.hrt.off{color:#DCE4F2;transform:scale(.85)}
.combo{color:#D98407;font-weight:800;font-size:12px;display:none}
.combo.show{display:inline;animation:pop .3s}
.timer{display:flex;align-items:center;gap:4px;color:var(--ink3)}

.quiz-body{flex:1;overflow-y:auto;padding:16px 16px 130px}
.q-type{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:750;color:var(--primary);
  background:var(--blue-soft);padding:4px 9px;border-radius:7px;letter-spacing:.3px}
.q-stem{font-size:17px;line-height:1.72;font-weight:600;margin-top:12px;letter-spacing:-.1px;white-space:pre-wrap}
.q-case{background:#F5F9FF;border:1px solid var(--line);border-radius:14px;padding:13px 14px;margin-top:12px;
  font-size:14px;line-height:1.75;color:#31435C;white-space:pre-wrap}
.opts{display:flex;flex-direction:column;gap:10px;margin-top:18px}
.opt{display:flex;gap:11px;align-items:flex-start;padding:14px 14px;border-radius:14px;background:#fff;
  border:1.5px solid var(--line);box-shadow:0 2px 8px rgba(17,64,150,.04);transition:all .16s}
.opt:active{transform:scale(.99)}
.opt .k{width:22px;height:22px;border-radius:7px;background:#F1F5FC;color:var(--ink2);font-size:12px;font-weight:800;
  display:flex;align-items:center;justify-content:center;flex:none;margin-top:1px;transition:all .16s}
.opt .t{font-size:15px;line-height:1.6;color:#1B2C45}
.opt.sel{border-color:var(--primary);background:#F6FAFF;box-shadow:0 4px 14px rgba(27,95,217,.12)}
.opt.sel .k{background:var(--primary);color:#fff}
.opt.right{border-color:#12A150;background:#F2FCF8}
.opt.right .k{background:var(--green);color:#fff}
.opt.wrong{border-color:var(--red);background:#FEF5F5}
.opt.wrong .k{background:var(--red);color:#fff}
.opt.dim{opacity:.55}
.opt .mark{margin-left:auto;font-size:11px;font-weight:750;color:var(--green);white-space:nowrap}
.opt.wrong .mark{color:var(--red)}

.explain{margin-top:16px;border-radius:16px;background:#fff;border:1px solid var(--line);padding:15px;animation:fadeUp .25s}
.explain .res{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:800;margin-bottom:8px}
.explain .res.ok{color:var(--green)}
.explain .res.no{color:var(--red)}
.explain .e-txt{font-size:14px;line-height:1.75;color:#33465F}
.explain .law{margin-top:10px;font-size:12px;color:var(--ink2);background:#F7FAFF;border-radius:9px;padding:9px 11px;
  border-left:3px solid var(--primary);line-height:1.6}
.explain .chain{margin-top:8px;font-size:12.5px;color:var(--ink2);line-height:1.7}

.quiz-foot{position:fixed;left:0;right:0;bottom:0;padding:12px 16px calc(12px + var(--sab));
  background:rgba(255,255,255,.95);backdrop-filter:blur(14px);border-top:1px solid var(--line);
  display:flex;gap:10px;align-items:center}
.quiz-foot .tip{font-size:11.5px;color:var(--ink3);flex:1;line-height:1.4}

.result{position:fixed;inset:0;z-index:96;background:linear-gradient(180deg,#F7FAFF,#EDF3FC);
  overflow-y:auto;padding:calc(var(--sat) + 30px) 18px calc(30px + var(--sab))}
.result .hero2{text-align:center;padding:10px 0 6px}
.result .score{font-size:52px;font-weight:850;letter-spacing:-2px;color:var(--primary);line-height:1.1;
  animation:pop .45s cubic-bezier(.2,1.3,.4,1)}
.result .score small{font-size:16px;font-weight:700;color:var(--ink3);letter-spacing:0}
.result .ttl{font-size:19px;font-weight:800;margin-top:8px}
.result .sub{font-size:13px;color:var(--ink2);margin-top:6px;line-height:1.6}
.result .stat3{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:20px 0 6px}
.result .stat3 div{background:#fff;border-radius:14px;padding:12px 6px;text-align:center;box-shadow:var(--shadow)}
.result .stat3 b{display:block;font-size:18px;color:var(--ink)}
.result .stat3 span{font-size:10.5px;color:var(--ink3)}
.review{margin-top:16px;display:flex;flex-direction:column;gap:10px}
.rev-item{background:#fff;border-radius:14px;padding:13px 14px;border:1px solid var(--line);box-shadow:0 3px 10px rgba(17,64,150,.04)}
.rev-item .q{font-size:13.5px;line-height:1.6;font-weight:650}
.rev-item .a{font-size:12px;color:var(--ink2);margin-top:6px;line-height:1.6}
.rev-item .a b{color:var(--green)}
.rev-item .a i{color:var(--red);font-style:normal}
.rev-ok{border-left:3px solid var(--green)}
.rev-no{border-left:3px solid var(--red)}

/* ============ 闯关 ============ */
.rank-card{border-radius:24px;padding:18px;color:#fff;position:relative;overflow:hidden;
  background:linear-gradient(135deg,#173E86 0%,#1B5FD9 60%,#2E72E8 100%);
  box-shadow:0 16px 32px rgba(20,60,140,.28)}
.rank-card::after{content:"";position:absolute;right:-30px;top:-40px;width:160px;height:160px;border-radius:50%;
  border:24px solid rgba(255,255,255,.07)}
.rank-card .rk{font-size:11px;opacity:.75;letter-spacing:1px;font-weight:700}
.rank-card .rn{font-size:25px;font-weight:850;margin-top:6px;letter-spacing:-.5px;display:flex;align-items:center;gap:8px}
.rank-card .rn svg{width:23px;height:23px}
.rank-card .star-line{display:flex;align-items:center;gap:6px;margin-top:9px;font-size:12px;opacity:.9}
.rank-card .pg{margin-top:12px;height:7px;border-radius:99px;background:rgba(255,255,255,.2);overflow:hidden}
.rank-card .pg i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,#FFD36B,#F2B33D);transition:width .6s}
.rank-card .nx{font-size:10.5px;opacity:.7;margin-top:6px}

.chapter{margin-top:16px;background:#fff;border-radius:20px;box-shadow:var(--shadow);border:1px solid var(--line);overflow:hidden}
.chapter .ch-head{display:flex;align-items:center;gap:12px;padding:15px 16px;border-bottom:1px solid #F1F5FC}
.chapter .ch-ico{width:42px;height:42px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:800;color:#fff;flex:none;box-shadow:0 6px 14px rgba(27,95,217,.18)}
.chapter .ch-t{font-size:15.5px;font-weight:750}
.chapter .ch-s{font-size:11.5px;color:var(--ink3);margin-top:2px}
.chapter .ch-pc{font-size:12px;font-weight:800;color:var(--primary)}
.level-map{padding:16px 16px 18px;position:relative}
.level-row{display:flex;align-items:center;gap:12px;position:relative;padding:7px 0}
.level-row::before{content:"";position:absolute;left:23px;top:0;bottom:0;width:2px;background:#EDF2FB}
.level-row:first-child::before{top:50%}
.level-row:last-child::before{bottom:50%}
.lv-badge{width:46px;height:46px;border-radius:16px;background:#F1F5FC;color:var(--ink3);display:flex;
  align-items:center;justify-content:center;font-weight:850;font-size:15px;flex:none;position:relative;z-index:2;
  border:2px solid #fff;box-shadow:0 3px 9px rgba(17,64,150,.07)}
.lv-badge.done{background:linear-gradient(135deg,#3D82F2,#1B5FD9);color:#fff}
.lv-badge.cur{background:#fff;color:var(--primary);border:2.5px solid var(--primary);animation:breathe 2s infinite}
.lv-badge.boss{background:linear-gradient(135deg,#F3C248,#D99B1B);color:#fff}
.lv-badge.boss.done{background:linear-gradient(135deg,#3D82F2,#1B5FD9)}
.lv-info{flex:1;min-width:0}
.lv-name{font-size:14px;font-weight:700;display:flex;align-items:center;gap:6px}
.lv-sub{font-size:11px;color:var(--ink3);margin-top:3px}
.lv-stars{display:flex;gap:2px;align-items:center}
.lv-stars svg{width:12px;height:12px;color:#E3E9F3}
.lv-stars svg.on{color:#F2B33D}
.lv-btn{width:52px;height:34px;border-radius:11px;font-size:12px;font-weight:750;background:var(--blue-soft);color:var(--primary);
  display:flex;align-items:center;justify-content:center;flex:none}
.lv-btn.lock{background:#F3F6FC;color:var(--ink3)}
.lv-btn.boss{background:var(--gold-soft);color:#A9740B}

.ach-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:12px}
.ach{background:#fff;border-radius:16px;padding:12px 6px;text-align:center;box-shadow:var(--shadow);border:1px solid var(--line)}
.ach .em{font-size:22px;filter:grayscale(1);opacity:.4}
.ach.on .em{filter:none;opacity:1}
.ach .nm{font-size:10px;color:var(--ink3);margin-top:5px;font-weight:650}
.ach.on .nm{color:var(--ink)}

/* ============ 弹层 / 提示 ============ */
.mask{position:fixed;inset:0;background:rgba(15,31,56,.42);backdrop-filter:blur(3px);z-index:120;
  display:flex;align-items:flex-end;animation:fadeIn .2s}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.sheet{width:100%;background:#fff;border-radius:26px 26px 0 0;padding:10px 18px calc(22px + var(--sab));
  max-height:86vh;overflow-y:auto;animation:sheetUp .3s cubic-bezier(.22,.9,.3,1);position:relative}
@keyframes sheetUp{from{transform:translateY(40px);opacity:.6}to{transform:none;opacity:1}}
.sheet .grab{width:38px;height:4px;border-radius:99px;background:#E3EAF6;margin:2px auto 14px}
.sheet h3{font-size:18px;font-weight:800;letter-spacing:-.2px}
.sheet p{font-size:13.5px;line-height:1.7;color:var(--ink2);margin-top:8px}
.sheet .acts{display:flex;gap:10px;margin-top:18px}
.sheet .acts .btn{flex:1}
.sheet .list{display:flex;flex-direction:column;gap:2px;margin-top:8px}
.sheet .li{display:flex;align-items:center;gap:10px;padding:13px 2px;border-bottom:1px solid #F2F6FC;font-size:14.5px}
.sheet .li:last-child{border-bottom:none}
.toast{position:fixed;left:50%;bottom:calc(96px + var(--sab));transform:translateX(-50%) translateY(8px);
  background:rgba(17,32,56,.92);color:#fff;font-size:13px;padding:10px 16px;border-radius:12px;
  opacity:0;transition:all .24s;z-index:200;max-width:80vw;text-align:center;pointer-events:none}
.toast.on{opacity:1;transform:translateX(-50%) translateY(0)}

/* 通关弹窗 */
.finish{text-align:center;padding:6px 4px 0}
.finish .crown{font-size:46px;line-height:1;animation:pop .5s cubic-bezier(.2,1.4,.4,1)}
.finish .ft{font-size:21px;font-weight:850;margin-top:10px;letter-spacing:-.3px}
.finish .fs{font-size:13px;color:var(--ink2);margin-top:6px;line-height:1.6}
.finish .stars3{display:flex;justify-content:center;gap:8px;margin:14px 0 4px}
.finish .stars3 svg{width:34px;height:34px;color:#E7ECF5;transition:color .3s}
.finish .stars3 svg.on{color:#F2B33D;animation:pop .4s backwards}
.finish .rewards{display:flex;justify-content:center;gap:8px;margin-top:10px;flex-wrap:wrap}
.finish .rw{font-size:11.5px;font-weight:700;color:var(--primary);background:var(--blue-soft);padding:5px 10px;border-radius:8px}
.finish .rw.gold{color:#A9740B;background:var(--gold-soft)}

/* 空状态 */
.empty{text-align:center;padding:50px 24px}
.empty .e1{font-size:34px;opacity:.35}
.empty .e2{font-size:14px;color:var(--ink2);margin-top:10px;font-weight:650}
.empty .e3{font-size:12px;color:var(--ink3);margin-top:6px;line-height:1.6}

/* 关于页 */
.about-row{display:flex;justify-content:space-between;gap:14px;padding:11px 0;border-bottom:1px solid #F2F6FC;font-size:13px}
.about-row:last-child{border-bottom:none}
.about-row .k{color:var(--ink2);flex:none}
.about-row .v{text-align:right;color:var(--ink);font-weight:600}

@media (max-width:360px){
  .page-title{font-size:24px}
  .hero .big{font-size:21px}
  .q-stem{font-size:16px}
}

/* ============ 我的 ============ */
.mine-head{display:flex;align-items:center;gap:14px;padding:6px 2px 18px}
.mine-ava{width:68px;height:68px;border-radius:50%;overflow:hidden;flex:none;border:2.5px solid #fff;
  box-shadow:0 8px 22px rgba(17,64,150,.18)}
.mine-ava img{width:100%;height:100%;object-fit:cover;display:block}
.mine-name{font-size:20px;font-weight:820;letter-spacing:-.3px;display:flex;align-items:center;gap:8px}
.mine-sub{font-size:12px;color:var(--ink2);margin-top:5px}
.mine-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:4px}
.mine-stats .st{background:#fff;border-radius:16px;padding:13px 8px;text-align:center;box-shadow:var(--shadow);
  border:1px solid var(--line)}
.mine-stats b{display:block;font-size:19px;color:var(--ink);letter-spacing:-.3px}
.mine-stats span{font-size:10.5px;color:var(--ink3);margin-top:2px;display:block}
.menu{background:#fff;border-radius:20px;box-shadow:var(--shadow);border:1px solid var(--line);overflow:hidden;margin-top:14px}
.menu-item{display:flex;align-items:center;gap:13px;padding:15px 16px;border-bottom:1px solid #F2F6FC}
.menu-item:last-child{border-bottom:none}
.menu-item:active{background:#F8FBFF}
.menu-ico{width:38px;height:38px;border-radius:12px;display:flex;align-items:center;justify-content:center;flex:none}
.menu-t{font-size:15px;font-weight:650}
.menu-s{font-size:11.5px;color:var(--ink3);margin-top:2px}
.menu-arrow{color:#C6D2E4;flex:none}

.pit-head{display:flex;align-items:center;gap:10px;padding:calc(var(--sat) + 10px) 14px 12px;
  border-bottom:1px solid var(--line);background:rgba(255,255,255,.96);backdrop-filter:blur(12px)}
.pit-body{flex:1;overflow-y:auto;padding:14px 16px calc(100px + var(--sab))}
.pit-item{background:#fff;border-radius:16px;padding:14px 15px;border:1px solid var(--line);
  box-shadow:0 4px 14px rgba(17,64,150,.05);margin-bottom:11px}
.pit-t{font-size:15px;font-weight:750;letter-spacing:-.1px}
.pit-w{font-size:13px;line-height:1.65;color:#B4252B;background:#FEF3F3;border-radius:10px;padding:9px 11px;margin-top:9px}
.pit-r{font-size:13px;line-height:1.65;color:#0B7A56;background:#EFFAF5;border-radius:10px;padding:9px 11px;margin-top:7px}
.pit-w b,.pit-r b{font-size:10.5px;font-weight:800;letter-spacing:.5px;display:block;margin-bottom:3px;opacity:.75}
.pit-why{font-size:12.5px;line-height:1.7;color:var(--ink2);margin-top:9px}
.pit-law{font-size:11px;color:var(--primary);background:var(--blue-soft);display:inline-block;padding:3px 8px;
  border-radius:6px;margin-top:8px;font-weight:650}
.wrong-item{background:#fff;border-radius:16px;padding:14px;border:1px solid var(--line);margin-bottom:10px}
.wrong-q{font-size:14px;line-height:1.65;font-weight:650}
.wrong-a{font-size:12.5px;line-height:1.7;color:var(--ink2);margin-top:8px}
.wrong-a b{color:var(--green)}
.wrong-a i{color:var(--red);font-style:normal}

/* ============ 设坑点 ============ */
.kd-sec.trap .lab{color:#7A4BE0}
.kd-sec.trap .lab::before{background:#7A4BE0}
.kd-sec.trap .txt{background:#F4F0FF;border-radius:12px;padding:12px 13px;font-size:14px;color:#4A2E8F}

/* ============ 横屏模式 ============ */
@media (orientation: landscape) and (max-width: 900px) {
  .tabbar{left:0;top:0;bottom:0;right:auto;width:86px;height:auto;flex-direction:column;justify-content:center;
    gap:4px;border-top:none;border-right:1px solid rgba(226,235,249,.9);padding:calc(var(--sat) + 8px) 0 calc(8px + var(--sab))}
  .tab{flex:0 0 auto;height:76px;border-radius:14px;margin:0 9px;width:68px}
  .tab.on{background:var(--blue-soft)}
  .tab.on::after{display:none}
  .tab .tab-ico,.tab .tab-ico svg{width:22px;height:22px}
  .tab .tab-txt{font-size:10px}
  #views{margin-left:86px}
  .view{padding:calc(var(--sat) + 10px) 20px 18px}
  .view.nopad{padding:0}
  .page-head{padding:0 2px 10px}
  .page-title{font-size:23px}
  .page-sub{margin-top:3px}

  .mm-top{flex-direction:row;align-items:center;gap:10px;padding:calc(var(--sat) + 8px) 14px 8px}
  .mm-top .row1{flex:0 0 auto}
  .mm-top .title{font-size:18px}
  .mm-top .page-sub{display:none}
  .mm-search{flex:1;min-width:180px;height:38px}
  .mm-tools{flex:0 0 auto}
  .mm-viewport{padding:4px 14px 24px}
  .mm-hint{bottom:8px}

  .hero{max-width:none;padding:18px 22px}
  .hero .cta{margin-top:12px}
  .stat-grid{grid-template-columns:repeat(3,1fr)}
  .k-list{display:grid;grid-template-columns:1fr 1fr;gap:10px;align-items:start}
  .week{height:74px}
  .chapter{margin-top:12px}

  .mine-head{padding:0 2px 12px}
  .mine-stats{grid-template-columns:repeat(3,1fr)}

  .quiz-body{padding:14px 28px 92px;max-width:1080px;margin:0 auto;width:100%}
  .q-stem{font-size:16px;margin-top:10px}
  .opts{display:grid;grid-template-columns:1fr 1fr;gap:10px;align-items:start}
  .opt{padding:12px 13px}
  .opt .t{font-size:14px}
  .quiz-foot{padding:10px 28px calc(10px + var(--sab))}
  .quiz-top{padding:calc(var(--sat) + 6px) 20px 8px}

  .kd-body,.pit-body{max-width:1000px;margin:0 auto;width:100%}
  .kd-head,.pit-head{padding-left:20px;padding-right:20px}

  .sheet{max-width:720px;margin:0 auto;border-radius:24px 24px 0 0}

  #splash .sp-inner{flex-direction:row;gap:30px;text-align:left}
  #splash .sp-avatar{width:104px;height:104px}
  #splash .sp-line.l1{font-size:36px;margin-top:0}
  #splash .sp-line.l2{font-size:44px}
  #splash .sp-num{font-size:60px}
  #splash .sp-sub{margin-top:14px}
}