/* 避坑向导 · 现货看懂规则/防错 · 设计系统 v=20260626
   孟菲斯避坑向导 (Memphis guide playbook) · 防御调性 */

:root{
  --cream:#FBF4E6;
  --paper:#FFFDF7;
  --sand:#F6ECD6;
  --ink:#1A1714;
  --ink-soft:#3A332B;
  --muted:#7A7163;
  --cobalt:#2747E0;
  --cobalt-dk:#1E32A6;
  --cobalt-ink:#0E2270;
  --tomato:#FF5A3C;
  --yellow:#F0B90B;
  --yellow-ink:#6A5410;
  --halo:#E6ECFF;
  --line:rgba(26,23,20,.16);
  --line-2:rgba(26,23,20,.30);
  --wrap:1080px;
  --r:12px;
  --shadow:5px 5px 0 var(--ink);
  --fred:'Fredoka',system-ui,sans-serif;
  --sans:'Noto Sans SC','Fredoka',system-ui,-apple-system,'PingFang SC','Microsoft YaHei',sans-serif;
  --mono:'Azeret Mono',ui-monospace,Menlo,Consolas,monospace;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--cream);color:var(--ink);
  font-family:var(--sans);font-size:17px;line-height:1.75;
  font-weight:400;-webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--cobalt);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{font-weight:900;line-height:1.18;letter-spacing:-.6px;margin:0 0 .5em}
.fred{font-family:var(--fred)}
.mono{font-family:var(--mono)}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 22px}
.sec{padding:54px 0;border-top:2px solid var(--ink)}
.sec-tight{padding:38px 0}
.kick{font-family:var(--mono);font-size:13px;letter-spacing:1.5px;color:var(--cobalt);text-transform:uppercase;margin:0 0 10px}
.eyebrow{font-family:var(--mono);font-size:12.5px;letter-spacing:1px;color:var(--muted)}
.lead{font-size:18px;color:var(--ink-soft)}
.center{text-align:center}
.hide{display:none}

/* ---------- skip link ---------- */
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:var(--cream);padding:10px 16px;z-index:200;border-radius:0 0 8px 0}
.skip:focus{left:0}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:100;background:var(--cream);border-bottom:2px solid var(--ink)}
.nav-in{display:flex;align-items:center;gap:16px;max-width:var(--wrap);margin:0 auto;padding:11px 22px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink)}
.brand:hover{text-decoration:none}
.brand-mark{width:34px;height:34px;background:var(--yellow);border:2px solid var(--ink);border-radius:9px;display:flex;align-items:center;justify-content:center;font-family:var(--fred);font-weight:700;font-size:20px;flex:none}
.brand-name{font-family:var(--fred);font-weight:700;font-size:19px;line-height:1.02}
.brand-sub{font-family:var(--mono);font-size:11px;color:var(--muted)}
.nav-links{margin-left:auto;display:flex;gap:20px;font-family:var(--mono);font-size:14px}
.nav-links a{color:var(--ink)}
.nav-toggle{margin-left:auto;display:none;flex:none;flex-shrink:0;min-width:44px;background:var(--cream);border:2px solid var(--ink);border-radius:8px;width:44px;height:44px;cursor:pointer;align-items:center;justify-content:center}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{content:'';display:block;width:18px;height:2.4px;background:var(--ink);position:relative}
.nav-toggle span::before{position:absolute;top:-6px}
.nav-toggle span::after{position:absolute;top:6px}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:46px 0 52px}
.hero-grid{display:grid;grid-template-columns:300px 1fr;gap:34px;align-items:center;position:relative;z-index:2}
.hero-fig{position:relative}
.hero-fig svg{width:100%;height:auto;overflow:visible}
.hero h1{font-size:clamp(36px,6vw,60px);margin:6px 0 0}
.hero .lead{margin:16px 0 22px;max-width:460px}
.shape{position:absolute;z-index:1}
.circle-word{position:relative;display:inline-block}
.circle-word svg{position:absolute;left:-18px;top:-8px;width:1.7em;height:1.5em;pointer-events:none}
.hero-copy{min-width:0}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--sans);font-weight:700;font-size:16px;padding:13px 24px;border-radius:30px;border:2px solid var(--ink);cursor:pointer;text-decoration:none;transition:transform .12s ease}
.btn:hover{text-decoration:none;transform:translateY(-2px)}
.btn-primary{background:var(--cobalt);color:var(--cream);border-color:var(--ink)}
.btn-yellow{background:var(--yellow);color:var(--ink)}
.btn-ink{background:var(--ink);color:var(--yellow)}
.btn-ghost{background:transparent;color:var(--ink)}
.btn-sm{font-size:14px;padding:8px 16px;min-height:44px}
.note{font-size:12.5px;color:var(--muted);line-height:1.6;margin:12px 0 0;max-width:480px}

/* ---------- 语言切换器 + 英文(拉丁)排版 ---------- */
.lang-switch{display:inline-flex;gap:4px;align-items:center;font-family:var(--mono);font-size:13px}
.lang-switch a{color:var(--muted);padding:2px 5px;border-radius:6px;min-width:44px;min-height:44px;display:inline-flex;align-items:center;justify-content:center}
.lang-switch a.on{color:var(--ink);font-weight:700;background:var(--halo)}
.lang-switch a:hover{text-decoration:none;color:var(--ink)}
html[lang="en"] body{font-family:system-ui,-apple-system,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif}
html[lang="en"] h1,html[lang="en"] h2,html[lang="en"] h3,html[lang="en"] h4{font-family:var(--fred);font-weight:700;letter-spacing:-.3px}
html[lang="en"] .prose,html[lang="en"] .lead,html[lang="en"] p,html[lang="en"] li{line-height:1.6}
html[lang="en"] .prose p{max-width:72ch}


/* ---------- trust strip ---------- */
.trust{background:var(--ink);color:#EDE6D7;font-family:var(--mono);font-size:12.5px}
.trust .wrap{display:flex;flex-wrap:wrap;gap:10px 16px;justify-content:center;padding:11px 22px}
.trust .dot{color:var(--yellow)}

/* ---------- pit blocks (非等宽坑位) ---------- */
.pits{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.pit{border:2px solid var(--ink);border-radius:var(--r);padding:18px 18px;position:relative;overflow:hidden;background:var(--paper)}
.pit .n{font-family:var(--mono);font-size:13px;color:var(--tomato)}
.pit h3{font-size:18px;margin:4px 0 5px}
.pit p{margin:0;font-size:14px;color:var(--muted)}
.pit a{text-decoration:none}
.pit:hover{transform:translate(-2px,-2px);box-shadow:var(--shadow)}
.pit,.pit:hover{transition:transform .12s ease,box-shadow .12s ease}
.pit-lead{grid-column:span 4;background:var(--cobalt);color:var(--cream)}
.pit-lead .n{color:#BcD0FF}
.pit-lead h3{font-size:24px}
.pit-lead p{color:#E4ECff}
.pit-lead .ring{position:absolute;right:-18px;bottom:-18px;width:70px;height:70px;border-radius:50%;border:9px solid var(--yellow)}
.pit-s{grid-column:span 2}
.pit-y{grid-column:span 2;background:var(--yellow)}
.pit-y .n{color:var(--yellow-ink)}.pit-y p{color:var(--yellow-ink)}
.pit-warn{grid-column:span 6;background:var(--tomato);color:var(--ink);display:flex;align-items:center;gap:16px}
.pit-warn .bang{font-family:var(--fred);font-size:34px;font-weight:700;flex:none}
.pit-warn h3{margin:0;font-size:18px}.pit-warn p{color:var(--ink);font-size:14px}

/* ---------- cornerstone band ---------- */
.band{background:var(--cobalt);color:var(--cream);border-top:2px solid var(--ink);border-bottom:2px solid var(--ink)}
.band .kick{color:var(--yellow)}
.band-grid{display:grid;grid-template-columns:1fr 260px;gap:30px;align-items:center}
.band h2{font-size:30px;margin:6px 0 10px}
.band p{opacity:.94;margin:0 0 16px}
.band a.more{color:var(--yellow);font-weight:700}
.flow svg{width:100%;height:auto}

/* ---------- tool list ---------- */
.tlist{margin-top:6px}
.trow{display:flex;align-items:baseline;gap:15px;padding:13px 0;border-bottom:1.6px solid var(--line);text-decoration:none;color:var(--ink)}
.trow:hover{text-decoration:none;background:var(--sand)}
.trow .tn{font-family:var(--mono);color:var(--tomato);font-weight:500;min-width:26px}
.trow .tt{flex:1}
.trow .tt b{font-weight:700}
.trow .tt span{color:var(--muted);font-size:14px}
.trow .go{font-family:var(--mono);color:var(--cobalt);font-size:13px;white-space:nowrap}

/* ---------- archive zine list ---------- */
.zine .zrow{display:flex;gap:18px;padding:16px 0;border-bottom:1.6px solid var(--line);text-decoration:none;color:var(--ink)}
.zine .zrow:hover{text-decoration:none}
.zine .zrow:hover .zt{color:var(--cobalt)}
.znum{font-family:var(--fred);font-size:23px;color:var(--cobalt);font-weight:700;min-width:62px}
.zt{font-weight:700;font-size:17px;line-height:1.35}
.zd{color:var(--muted);font-size:14px;margin-top:2px}
.zmeta{font-family:var(--mono);font-size:11px;color:#9A9184;text-align:right;line-height:1.5;white-space:nowrap}

/* ---------- risk callout ---------- */
.risk{background:var(--tomato);color:var(--ink);border-top:2px solid var(--ink);border-bottom:2px solid var(--ink)}
.risk-in{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.risk .bang{font-family:var(--fred);font-size:54px;font-weight:700;line-height:1}
.risk h2{font-size:24px;margin:0 0 6px}
.risk p{margin:0;max-width:620px}
.risk a{color:var(--ink);font-weight:700;text-decoration:underline}

/* ---------- about / editorial ---------- */
.about p{max-width:640px}
.about .row{font-family:var(--mono);font-size:13px;color:var(--muted);display:flex;gap:14px;flex-wrap:wrap;margin-top:14px}
.about .row .no{color:var(--tomato)}


/* ---------- footer ---------- */
.foot{background:var(--ink);color:#D9D2C4;padding:46px 0 30px}
.foot-cols{display:grid;grid-template-columns:repeat(4,1fr) 1.4fr;gap:26px}
.foot h4{font-family:var(--fred);color:var(--yellow);font-weight:600;font-size:15px;margin:0 0 10px;letter-spacing:0}
.foot ul{list-style:none;margin:0;padding:0;display:grid;gap:7px}
.foot a{color:#C2BBAD;font-size:14px}
.foot a:hover{color:var(--yellow)}
.foot .disc{font-size:13px;color:#B7B0A2;line-height:1.7}
.foot .codebox{font-family:var(--mono);font-size:13px;border:1.6px solid #4A4439;border-radius:10px;padding:9px 12px;margin-top:10px;color:#EDE6D7}
.foot-base{border-top:1px solid #3A352C;margin-top:30px;padding-top:16px;font-family:var(--mono);font-size:11.5px;color:#8A8275;line-height:1.8}

/* ---------- article prose ---------- */
.article{max-width:760px;margin:0 auto;padding:40px 22px 10px}
.crumb{font-family:var(--mono);font-size:12.5px;color:var(--muted);margin-bottom:14px}
.crumb a{color:var(--muted)}
.article h1{font-size:clamp(28px,4.5vw,40px)}
.article .meta{font-family:var(--mono);font-size:12.5px;color:var(--muted);margin:0 0 22px;display:flex;gap:12px;flex-wrap:wrap}
.article-cover{border:2px solid var(--ink);border-radius:var(--r);overflow:hidden;margin:0 0 26px}
.prose{font-size:17.5px}
.prose h2{font-size:25px;margin:38px 0 12px;padding-top:6px}
.prose h3{font-size:20px;margin:26px 0 8px}
.prose p{margin:0 0 16px}
.prose ul,.prose ol{margin:0 0 16px;padding-left:22px}
.prose li{margin:6px 0}
.prose a{font-weight:500;text-decoration:underline}
.prose strong{font-weight:700}
.toc{background:var(--sand);border:2px solid var(--ink);border-radius:var(--r);padding:16px 20px;margin:0 0 26px}
.toc b{font-family:var(--mono);font-size:13px;letter-spacing:1px;text-transform:uppercase}
.toc ol{margin:8px 0 0;padding-left:20px}
.toc a{color:var(--ink)}
.callout{border:2px solid var(--ink);border-left-width:8px;border-radius:var(--r);padding:14px 18px;margin:22px 0;background:var(--paper)}
.callout.warn{border-color:var(--tomato);background:#FFF1ED}
.callout.tip{border-color:var(--cobalt);background:var(--halo)}
.callout .lbl{font-family:var(--mono);font-size:12px;letter-spacing:1px;text-transform:uppercase;display:block;margin-bottom:5px}
.callout.warn .lbl{color:#B5331C}.callout.tip .lbl{color:var(--cobalt-dk)}
.faq{margin:26px 0}
.faq details{border-bottom:1.6px solid var(--line);padding:12px 0}
.faq summary{font-weight:700;cursor:pointer;font-size:17px;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:'+ ';color:var(--tomato);font-family:var(--mono)}
.faq details[open] summary::before{content:'– '}
.cta-inline{border:2px solid var(--ink);border-radius:var(--r);background:var(--paper);padding:18px 20px;margin:26px 0;box-shadow:var(--shadow)}
.cta-inline .code{font-family:var(--mono);font-weight:700;font-size:20px}
.src{font-size:14px;color:var(--muted);margin:24px 0 0}
.src h2{font-size:18px}
.author{display:flex;gap:14px;align-items:center;border-top:2px solid var(--ink);margin-top:30px;padding-top:18px}
.author .av{width:46px;height:46px;border-radius:50%;background:var(--yellow);border:2px solid var(--ink);display:flex;align-items:center;justify-content:center;font-family:var(--fred);font-weight:700;flex:none}
.author .nm{font-weight:700}.author .rl{font-size:13px;color:var(--muted)}
.related{margin:30px 0}

/* ---------- tool UI ---------- */
.tool-wrap{max-width:720px;margin:0 auto;padding:36px 22px}
.tool-card{border:2px solid var(--ink);border-radius:var(--r);background:var(--paper);padding:22px;box-shadow:var(--shadow)}
.field{margin:0 0 14px}
.field label{display:block;font-weight:700;font-size:14px;margin-bottom:6px}
.field input,.field select{width:100%;font-family:var(--sans);font-size:16px;padding:11px 13px;border:2px solid var(--ink);border-radius:9px;background:var(--cream)}
.field input:focus,.field select:focus{outline:none;box-shadow:0 0 0 3px var(--halo)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.result{margin-top:18px;border:2px solid var(--ink);border-radius:var(--r);background:var(--halo);padding:16px 18px}
.result .big{font-family:var(--fred);font-size:30px;font-weight:700}
.result .lab{font-family:var(--mono);font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:1px}
.result.bad{background:#FFF1ED}
.result.good{background:#E7F7EE}
.kv{display:flex;justify-content:space-between;gap:12px;padding:6px 0;border-bottom:1px dashed var(--line);font-size:15px}
.kv:last-child{border-bottom:0}
.kv .v{font-family:var(--mono);font-weight:500}


/* ---------- motion ---------- */
@keyframes drift{0%,100%{transform:translate(0,0) rotate(0)}50%{transform:translate(7px,-7px) rotate(9deg)}}
@keyframes drift2{0%,100%{transform:translate(0,0) rotate(0)}50%{transform:translate(-6px,6px) rotate(-8deg)}}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.2}}
@keyframes fadein{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.drift{animation:drift 7s ease-in-out infinite}
.drift-b{animation:drift2 8.5s ease-in-out infinite}
.floaty{animation:floaty 4.5s ease-in-out infinite}
.blink{animation:blink 1.6s steps(1) infinite}
.reveal{opacity:0}
.reveal.in{animation:fadein .6s ease-out forwards}

/* ---------- responsive ---------- */
@media(max-width:880px){
  .foot-cols{grid-template-columns:repeat(2,1fr)}
  .band-grid{grid-template-columns:1fr}
  .hero{padding:28px 0 34px}
  .hero-grid{grid-template-columns:1fr;gap:18px}
  .hero-copy{order:1}
  .hero-fig{order:2;max-width:208px;margin:4px auto 0}
  .hero h1{margin-top:2px}
  .hero .lead{margin:12px 0 18px}
}
@media(max-width:720px){
  body{font-size:16px}
  .nav-links{display:none}
  .nav-links.open{display:flex;position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:0;background:var(--cream);border-bottom:2px solid var(--ink);padding:8px 22px 14px}
  .nav-links.open a{padding:9px 0;border-bottom:1px solid var(--line)}
  .nav-toggle{display:flex}
  .foot a,.crumb a,.toc a{display:inline-block;padding:9px 2px;min-height:44px}
  .trow,.zrow{min-height:44px}
  .sec{padding:40px 0}
  .pits{grid-template-columns:repeat(2,1fr)}
  .pit-lead{grid-column:span 2}.pit-warn{grid-column:span 2}
  .pit-s,.pit-y{grid-column:span 1}
  .grid2{grid-template-columns:1fr}
  .foot-cols{grid-template-columns:1fr 1fr}
  .risk .bang{font-size:42px}
}
@media(max-width:380px){
  .pits{grid-template-columns:1fr}
  .pit-s,.pit-y,.pit-lead,.pit-warn{grid-column:span 1}
  .hero h1{font-size:32px}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1!important}
}