/* 秒杀题库 · 奶油纸浅色主题（与 linfan / pshen / fangcheng 同一套设计 token） */
#scr-miaosha{--mk-bg:#FBF6EC;--mk-panel:#FFFFFF;--mk-panel2:#FFFDF8;
  --mk-line:#E4DAC6;--mk-line2:#EEE5D2;
  --mk-txt:#26221B;--mk-txt2:#6B6257;--mk-txt3:#9C9286;
  --mk-gold:#B08A3E;--mk-jade:#1F8A4C;--mk-red:#D8432C;--mk-blue:#2B4C7E;
  --mk-serif:"Kaiti SC",STKaiti,"Noto Serif SC",serif;
  --mk-mono:"SF Mono",Menlo,Consolas,monospace;
  background:var(--mk-bg);color:var(--mk-txt);position:relative;overflow:hidden;
  min-height:100vh;min-height:100dvh;}
#scr-miaosha::before{content:"";position:fixed;inset:-30%;z-index:0;pointer-events:none;
  background:
    radial-gradient(42% 30% at 18% 12%, rgba(176,138,62,.05), transparent 70%),
    radial-gradient(46% 34% at 85% 20%, rgba(31,138,76,.04), transparent 70%),
    radial-gradient(50% 36% at 50% 96%, rgba(216,67,44,.03), transparent 70%);}
#scr-miaosha::after{content:"";position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.5;
  background-image:repeating-linear-gradient(0deg,rgba(176,138,62,.022) 0 1px,transparent 1px 3px);}
.mk-wrap{position:relative;z-index:1;max-width:620px;margin:0 auto;
  padding:0 18px calc(30px + env(safe-area-inset-bottom));}

/* ---- 页头 ---- */
.mk-head{display:flex;align-items:center;gap:12px;padding-top:18px;margin-bottom:6px}
.mk-back{flex:none;width:36px;height:36px;border-radius:999px;cursor:pointer;
  border:1px solid var(--mk-line);background:var(--mk-panel);color:var(--mk-txt2);
  font-size:17px;font-weight:700;line-height:1;display:flex;align-items:center;justify-content:center;
  transition:transform .15s,border-color .15s;}
.mk-back:active{transform:scale(.9);border-color:var(--mk-gold)}
.mk-ht{min-width:0}
.mk-eyebrow{font-size:9.5px;letter-spacing:.3em;color:var(--mk-txt3);font-weight:700}
.mk-ht h1{margin:3px 0 0;font-size:24px;font-weight:800;letter-spacing:1px;line-height:1.2;
  font-family:var(--mk-serif);color:var(--mk-txt);}
.mk-ht h1 .bolt{display:inline-flex;align-items:center;margin-right:5px;
  filter:drop-shadow(0 1px 1px rgba(176,138,62,.28))}
.mk-ht h1 .bolt svg{display:block}

/* ---- 统计条 ---- */
.mk-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:14px 0 16px}
.mk-stat{position:relative;overflow:hidden;border-radius:14px;padding:11px 12px;
  background:var(--mk-panel);border:1px solid var(--mk-line)}
.mk-stat b{display:block;font-size:20px;font-weight:800;line-height:1.1;font-variant-numeric:tabular-nums;
  font-family:var(--mk-mono);color:var(--mk-jade)}
.mk-stat span{display:block;margin-top:4px;font-size:9px;letter-spacing:.2em;color:var(--mk-txt3);font-weight:700;white-space:nowrap}
.mk-stat.hot b{color:var(--mk-red)}

/* ---- 简介横幅 ---- */
.mk-intro{margin:0 1px 16px;padding:12px 14px;border-radius:14px;font-size:12px;line-height:1.8;color:var(--mk-txt2);
  background:linear-gradient(120deg,rgba(176,138,62,.06),rgba(31,138,76,.05));
  border:1px solid var(--mk-line);}
.mk-intro b{color:var(--mk-txt)}

/* ---- 十六式网格 ---- */
.mk-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:11px}
@media(min-width:560px){.mk-grid{grid-template-columns:repeat(3,1fr)}}
.mk-card{position:relative;overflow:hidden;text-align:left;cursor:pointer;font-family:inherit;
  border-radius:17px;padding:14px 13px 13px;border:1px solid var(--mk-line);
  background:linear-gradient(165deg,#FFFFFF 0%,#FFFCF4 100%);
  color:var(--mk-txt);transition:transform .16s,border-color .2s,box-shadow .25s;
  box-shadow:0 2px 0 var(--mk-line2);
  animation:mkCardIn .5s cubic-bezier(.22,1,.36,1) both;}
@keyframes mkCardIn{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}
.mk-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;pointer-events:none;
  background:var(--mc,var(--mk-gold));opacity:.9;transition:width .2s}
.mk-card:active{transform:scale(.95)}
.mk-card.flash{animation:mkFlash .8s ease}
@keyframes mkFlash{0%{box-shadow:0 0 0 0 transparent}60%{box-shadow:0 0 0 3px var(--mg)}100%{box-shadow:0 0 0 0 transparent}}
.mk-no{display:block;font-family:var(--mk-mono);font-size:10px;letter-spacing:.18em;color:var(--mc);opacity:.95}
.mk-name{display:block;margin:7px 0 6px;font-size:17px;font-weight:800;letter-spacing:.5px;
  font-family:var(--mk-serif);color:var(--mk-txt)}
.mk-trigger{display:block;font-style:normal;font-size:10.5px;color:var(--mk-txt2);line-height:1.5;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mk-cat{display:inline-flex;align-items:center;gap:4px;margin-top:9px;font-style:normal;font-size:9px;
  letter-spacing:.14em;font-weight:700;color:var(--mc);border:1px solid;padding:3px 8px;border-radius:999px;
  border-color:color-mix(in srgb,var(--mc) 38%,transparent);background:color-mix(in srgb,var(--mc) 9%,transparent)}
.mk-badge{position:absolute;top:10px;right:10px;font-size:14px;opacity:0;transform:scale(.4) rotate(-30deg);
  transition:opacity .3s,transform .35s cubic-bezier(.34,1.56,.64,1);
  filter:drop-shadow(0 1px 2px rgba(31,138,76,.3))}
.mk-card.done .mk-badge{opacity:1;transform:scale(1) rotate(0)}
.mk-card.done{background:linear-gradient(165deg,color-mix(in srgb,var(--mc) 9%,#FFFFFF) 0%,#FFFCF4 74%)}

/* ---- 速查表 ---- */
.mk-sum{margin-top:22px;border-radius:17px;overflow:hidden;border:1px solid var(--mk-line);
  background:linear-gradient(165deg,#FFFFFF,var(--mk-panel2));box-shadow:0 2px 0 var(--mk-line2)}
.mk-sum>button{width:100%;display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:15px 16px;background:none;border:none;cursor:pointer;font-family:inherit;color:var(--mk-txt)}
.mk-sum>button h3{margin:0;font-size:13.5px;font-weight:800;letter-spacing:1px;font-family:var(--mk-serif)}
.mk-sum>button i{font-style:normal;font-size:16px;color:var(--mk-txt3);transition:transform .25s}
.mk-sum.open>button i{transform:rotate(180deg)}
.mk-sum-tb{display:none;padding:2px 12px 14px;animation:mkCardIn .35s ease both}
.mk-sum.open .mk-sum-tb{display:block}
.mk-sum-tb table{width:100%;border-collapse:collapse;font-size:11px;line-height:1.6}
.mk-sum-tb th{text-align:left;color:var(--mk-txt3);font-size:9px;letter-spacing:.18em;padding:7px 6px;
  border-bottom:1px solid var(--mk-line);white-space:nowrap}
.mk-sum-tb td{padding:8px 6px;border-bottom:1px solid var(--mk-line2);vertical-align:top;color:var(--mk-txt2)}
.mk-sum-tb td:first-child{color:var(--mk-txt);font-weight:800;white-space:nowrap}
.mk-sum-tb tr:last-child td{border-bottom:none}

/* ================= 详情层 ================= */
.mkd{position:fixed;inset:0;z-index:900;display:none}
.mkd.show{display:block}
.mkd-mask{position:absolute;inset:0;background:rgba(38,34,27,.44);backdrop-filter:blur(3px);
  -webkit-backdrop-filter:blur(3px);animation:mkFade .22s ease}
@keyframes mkFade{from{opacity:0}to{opacity:1}}
.mkd-panel{position:absolute;left:0;right:0;bottom:0;top:max(44px,5dvh);max-width:660px;margin:0 auto;
  background:#FDF9EF;border:1px solid var(--mk-line);border-bottom:none;border-radius:22px 22px 0 0;
  display:flex;flex-direction:column;overflow:hidden;animation:mkUp .34s cubic-bezier(.22,1,.36,1);
  box-shadow:0 -10px 34px rgba(90,74,40,.16)}
@keyframes mkUp{from{transform:translateY(7%);opacity:0}to{transform:translateY(0);opacity:1}}
.mkd-head{flex:none;display:flex;align-items:center;gap:10px;padding:12px 16px;border-bottom:1px solid var(--mk-line);
  background:linear-gradient(180deg,#FFFFFF,transparent)}
.mkd-close{flex:none;width:32px;height:32px;border-radius:999px;cursor:pointer;font-family:inherit;
  border:1px solid var(--mk-line);background:var(--mk-panel);color:var(--mk-txt2);font-size:14px;
  display:flex;align-items:center;justify-content:center;transition:transform .15s}
.mkd-close:active{transform:scale(.9)}
.mkd-pos{flex:1;min-width:0;font-family:var(--mk-mono);font-size:10.5px;letter-spacing:.22em;color:var(--mk-txt3)}
.mkd-pos b{color:var(--mc);font-weight:800}
.mkd-nav{display:flex;gap:7px}
.mkd-nav button{width:32px;height:32px;border-radius:10px;cursor:pointer;font-family:inherit;
  border:1px solid var(--mk-line);background:var(--mk-panel);color:var(--mk-txt2);font-size:15px;font-weight:700;
  display:flex;align-items:center;justify-content:center;transition:transform .15s,border-color .15s}
.mkd-nav button:active{transform:scale(.9)}
.mkd-nav button:disabled{opacity:.3}
.mkd-body{flex:1;min-height:0;overflow-y:auto;-webkit-overflow-scrolling:touch;
  padding:16px 16px calc(26px + env(safe-area-inset-bottom));}

/* ---- 详情：各版块 ---- */
.mkd-hero{position:relative;overflow:hidden;border-radius:18px;padding:18px 16px 16px;margin-bottom:14px;
  background:linear-gradient(150deg,color-mix(in srgb,var(--mc) 12%,#FFFFFF),#FFFCF4 78%);
  border:1px solid color-mix(in srgb,var(--mc) 30%,transparent);animation:mkCardIn .4s ease both}
.mkd-hero::after{content:"⚡";position:absolute;right:-6px;bottom:-16px;font-size:74px;font-weight:900;
  color:var(--mc);opacity:.09;line-height:1}
.mkd-hero em{font-style:normal;font-size:9.5px;letter-spacing:.22em;font-weight:800;color:var(--mc);
  border:1px solid color-mix(in srgb,var(--mc) 40%,transparent);border-radius:999px;padding:3px 10px;
  background:color-mix(in srgb,var(--mc) 9%,transparent)}
.mkd-hero h2{margin:11px 0 7px;font-size:25px;font-weight:800;letter-spacing:1px;font-family:var(--mk-serif)}
.mkd-hero p{margin:0;font-size:12px;color:var(--mk-txt2)}
.mkd-hero p b{color:var(--mc)}
.mkd-sec{margin-bottom:14px;animation:mkCardIn .45s ease both}
.mkd-sec:nth-of-type(2){animation-delay:.05s}
.mkd-sec:nth-of-type(3){animation-delay:.1s}
.mkd-sec:nth-of-type(4){animation-delay:.15s}
.mkd-sec>h3{display:flex;align-items:center;gap:8px;margin:0 0 10px;font-size:13px;font-weight:800;letter-spacing:1px;
  font-family:var(--mk-serif)}
.mkd-sec>h3::before{content:"";flex:none;width:5px;height:15px;border-radius:3px;background:var(--mc)}
.mkd-sec p{margin:0 0 9px;font-size:12.5px;line-height:1.9;color:var(--mk-txt2)}
.mkd-sec p:last-child{margin-bottom:0}
.mkd-sec p b{color:var(--mk-txt)}
.mkd-tipbox{margin-top:10px;border-radius:13px;padding:11px 13px;font-size:12px;line-height:1.8;color:var(--mk-txt2);
  background:color-mix(in srgb,var(--mc) 7%,#FFFFFF);border:1px dashed color-mix(in srgb,var(--mc) 34%,transparent)}
.mkd-tipbox b{color:var(--mc)}

/* 公式横幅 */
.mkd-formula{position:relative;overflow:hidden;border-radius:15px;padding:15px 16px;text-align:center;
  font-family:var(--mk-mono);font-size:15.5px;font-weight:700;line-height:1.6;color:var(--mc);
  background:color-mix(in srgb,var(--mc) 7%,#FFFFFF);
  border:1px solid color-mix(in srgb,var(--mc) 38%,transparent);}
.mkd-formula small{display:block;margin-top:5px;font-family:inherit;font-size:9.5px;letter-spacing:.24em;
  color:var(--mk-txt3);font-weight:700}

/* 例题 */
.mkd-q{border-radius:17px;overflow:hidden;border:1px solid var(--mk-line);
  background:linear-gradient(170deg,#FFFFFF,#FFFCF4);box-shadow:0 2px 0 var(--mk-line2)}
.mkd-src{display:inline-block;margin:13px 14px 0;font-size:9.5px;letter-spacing:.16em;font-weight:800;
  color:var(--mk-txt3);border:1px solid var(--mk-line);border-radius:999px;padding:3px 10px;
  font-family:var(--mk-mono)}
.mkd-stem{margin:10px 14px 4px;font-size:13.5px;line-height:1.95;color:var(--mk-txt)}
.mkd-opts{display:grid;grid-template-columns:repeat(2,1fr);gap:9px;padding:12px 14px 4px}
.mkd-opt{display:flex;align-items:center;gap:9px;text-align:left;cursor:pointer;font-family:inherit;
  border-radius:12px;padding:11px 12px;border:1px solid var(--mk-line);
  background:var(--mk-panel2);color:var(--mk-txt);font-size:13px;font-weight:600;
  transition:transform .14s,border-color .2s,background .2s}
.mkd-opt:active{transform:scale(.96)}
.mkd-opt .ol{flex:none;width:22px;height:22px;border-radius:8px;display:flex;align-items:center;justify-content:center;
  font-size:11px;font-weight:900;font-family:var(--mk-mono);color:var(--mk-txt2);
  border:1px solid var(--mk-line);background:#FFFFFF;transition:.2s}
.mkd-opt.ok{border-color:rgba(31,138,76,.65);background:rgba(31,138,76,.09)}
.mkd-opt.ok .ol{background:#1F8A4C;color:#FFFFFF;border-color:#1F8A4C;box-shadow:0 2px 6px rgba(31,138,76,.3)}
.mkd-opt.bad{border-color:rgba(216,67,44,.6);background:rgba(216,67,44,.08);animation:mkShake .4s ease}
.mkd-opt.bad .ol{background:#D8432C;color:#FFFFFF;border-color:#D8432C}
@keyframes mkShake{0%,100%{transform:translateX(0)}25%{transform:translateX(-5px)}50%{transform:translateX(4px)}75%{transform:translateX(-2px)}}
.mkd-q-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 14px 14px}
.mkd-verdict{font-size:12px;font-weight:800;letter-spacing:.04em;color:var(--mk-txt3);min-width:0}
.mkd-verdict.win{color:var(--mk-jade)}
.mkd-verdict.lose{color:var(--mk-red)}
.mkd-peek{flex:none;cursor:pointer;font-family:inherit;border-radius:999px;padding:8px 14px;
  font-size:11.5px;font-weight:700;color:var(--mk-txt2);background:var(--mk-panel);
  border:1px solid var(--mk-line);transition:transform .14s}
.mkd-peek:active{transform:scale(.94)}

/* 秒章（朱砂红章） */
.mkd-stamp{position:absolute;top:34px;right:22px;z-index:5;width:66px;height:66px;border-radius:50%;
  border:3px solid rgba(216,67,44,.88);display:flex;align-items:center;justify-content:center;
  font-size:29px;font-weight:900;color:rgba(216,67,44,.95);transform:rotate(-14deg);
  font-family:var(--mk-serif);
  box-shadow:0 2px 10px rgba(216,67,44,.18),inset 0 0 8px rgba(216,67,44,.12);
  animation:mkStamp .5s cubic-bezier(.34,1.56,.64,1) both;background:rgba(251,246,236,.72);pointer-events:none}
@keyframes mkStamp{0%{transform:rotate(-14deg) scale(2.4);opacity:0}
  60%{transform:rotate(-14deg) scale(.92);opacity:1}100%{transform:rotate(-14deg) scale(1);opacity:1}}

/* 解答步骤 */
.mkd-sol{margin:12px 14px 14px;border-radius:14px;padding:13px 14px;
  background:rgba(31,138,76,.055);border:1px solid rgba(31,138,76,.2);animation:mkCardIn .4s ease both}
.mkd-sol h4{margin:0 0 10px;font-size:11px;letter-spacing:.22em;color:var(--mk-jade);font-weight:800}
.mkd-sol ol{margin:0;padding-left:0;list-style:none;counter-reset:mks}
.mkd-sol ol li{counter-increment:mks;position:relative;padding:0 0 11px 30px;font-size:12.5px;
  line-height:1.9;color:var(--mk-txt2)}
.mkd-sol ol li:last-child{padding-bottom:2px}
.mkd-sol ol li::before{content:counter(mks,decimal-leading-zero);position:absolute;left:0;top:2px;
  font-family:var(--mk-mono);font-size:10px;font-weight:800;color:var(--mk-jade);
  border:1px solid rgba(31,138,76,.38);border-radius:7px;padding:2px 5px;line-height:1.2}
.mkd-sol ol li b{color:var(--mk-txt)}

/* 方法卡 */
.mkd-m{border-radius:17px;border:1px solid var(--mk-line);overflow:hidden;
  background:linear-gradient(170deg,#FFFFFF,#FFFCF4);box-shadow:0 2px 0 var(--mk-line2)}
.mkd-m-name{display:flex;align-items:center;gap:9px;padding:13px 15px;font-size:14.5px;font-weight:800;
  letter-spacing:.5px;border-bottom:1px solid var(--mk-line);color:var(--mc);font-family:var(--mk-serif)}
.mkd-m-name::after{content:"METHOD";margin-left:auto;font-family:var(--mk-mono);font-size:8.5px;
  letter-spacing:.26em;color:var(--mk-txt3);font-weight:700}
.mkd-m-body{padding:13px 15px 15px}
.mkd-m-row{margin:0 0 11px;font-size:12.5px;line-height:1.9;color:var(--mk-txt2)}
.mkd-m-row:last-child{margin-bottom:0}
.mkd-m-row>b{display:inline-block;margin-right:7px;font-size:9.5px;letter-spacing:.2em;font-weight:800;
  color:var(--mc);border:1px solid color-mix(in srgb,var(--mc) 34%,transparent);border-radius:7px;
  padding:2px 8px;vertical-align:1px}
.mkd-m-row ol{margin:7px 0 0;padding-left:0;list-style:none;counter-reset:mkm}
.mkd-m-row ol li{counter-increment:mkm;padding:0 0 7px 26px;position:relative}
.mkd-m-row ol li::before{content:counter(mkm);position:absolute;left:0;top:1px;width:17px;height:17px;
  border-radius:6px;display:flex;align-items:center;justify-content:center;font-family:var(--mk-mono);
  font-size:10px;font-weight:800;color:var(--mc);border:1px solid color-mix(in srgb,var(--mc) 34%,transparent)}
.mkd-m-row ul{margin:6px 0 0;padding-left:0;list-style:none}
.mkd-m-row ul li{position:relative;padding-left:17px;margin-bottom:5px}
.mkd-m-row ul li::before{content:"·";position:absolute;left:4px;color:var(--mc);font-weight:900}
.mkd-proof{margin-top:11px;border-radius:12px;border:1px dashed var(--mk-line);background:var(--mk-panel2)}
.mkd-proof summary{cursor:pointer;padding:10px 13px;font-size:11.5px;font-weight:700;color:var(--mk-txt3);
  list-style:none;user-select:none;-webkit-user-select:none}
.mkd-proof summary::before{content:"▸ ";color:var(--mc)}
.mkd-proof[open] summary::before{content:"▾ "}
.mkd-proof p{margin:0;padding:0 13px 12px;font-size:12px;line-height:1.9;color:var(--mk-txt2)}

/* 下一式（金棕主按钮，与林凡 CTA 同族） */
.mkd-finish{display:block;width:100%;margin-top:4px;padding:14px;border:none;border-radius:999px;cursor:pointer;
  font-family:inherit;font-size:14.5px;font-weight:800;letter-spacing:4px;color:#FFF8EF;
  background:linear-gradient(120deg,#C79A4A,#B08A3E);box-shadow:0 4px 0 #8E6C2C,0 8px 18px rgba(176,138,62,.22);
  transition:transform .15s,box-shadow .15s}
.mkd-finish:active{transform:translateY(3px);box-shadow:0 1px 0 #8E6C2C}