/* 恶搞标语（fx/meme.js）：首页鉴藏印与轮播、登录页／顶栏／接入说明的一句、庆祝时的大印。字一律用完整宋体，不用 SD Serif 子集。 */
:root{--meme-serif:"Songti SC","STSong","Noto Serif SC","Source Han Serif SC","SimSun",serif}
.meme-seals{position:absolute;inset:0;z-index:4;pointer-events:none}
.meme-seal{position:absolute;display:grid;place-items:center;width:64px;height:64px;padding:5px;writing-mode:vertical-rl;font:900 21px/1.02 var(--meme-serif);letter-spacing:.02em;text-align:center;
  background:#b3202a;color:#f6ead6;border-radius:4px;box-shadow:inset 0 0 0 2px #f6ead6,inset 0 0 0 4px #b3202a;mix-blend-mode:multiply;opacity:0;transform:rotate(var(--r,0deg))}
.meme-seal.zhu{background:transparent;color:#b3202a;border:2.5px solid #b3202a;box-shadow:inset 0 0 0 1.5px rgba(179,32,42,.25)}
.meme-seal.s1{left:8%;top:72%;--r:-7deg}
.meme-seal.s2{left:57%;top:63%;--r:5deg}
.meme-seal.s3{right:17%;top:85%;--r:-3deg}
.meme-seals.on .meme-seal{animation:meme-stamp .6s cubic-bezier(.3,1.4,.5,1) both}
.meme-seals.on .s2{animation-delay:.55s}.meme-seals.on .s3{animation-delay:1.1s}
@keyframes meme-stamp{0%{opacity:0;transform:rotate(var(--r)) scale(1.9)}60%{opacity:.95;transform:rotate(var(--r)) scale(.94)}100%{opacity:.92;transform:rotate(var(--r)) scale(1)}}
.meme-line{margin:14px 0 0;font:600 15px/1.6 var(--meme-serif);letter-spacing:.22em;color:var(--fg2);opacity:0;transform:translateY(4px);transition:opacity .65s ease,transform .65s ease}
.meme-line.on{opacity:1;transform:none}
.meme-line::before,.meme-line::after{content:"—";margin:0 .6em;color:var(--red);opacity:.7}
.meme-sub{display:block;margin-top:6px;font:500 13px/1.5 var(--meme-serif);letter-spacing:.18em;color:var(--muted)}
.doc h1 .meme-sub{display:inline-block;margin:0 0 0 14px;vertical-align:middle;font-size:14px;color:var(--red)}
.meme-tag{margin-left:14px;padding-left:14px;border-left:1px solid var(--line-strong);font:italic 500 13px/1.3 var(--meme-serif);color:var(--muted);letter-spacing:.12em;white-space:nowrap}
.meme-pop{position:fixed;left:50%;top:38%;z-index:120;display:flex;flex-direction:column;align-items:center;gap:7px;padding:16px 24px;background:#b3202a;color:#f6ead6;border-radius:6px;
  box-shadow:inset 0 0 0 3px #f6ead6,inset 0 0 0 5px #b3202a,0 18px 40px rgba(60,20,15,.3);font:900 30px/1 var(--meme-serif);letter-spacing:.2em;pointer-events:none;
  transform:translate(-50%,-50%) rotate(-6deg);animation:meme-pop 2.5s cubic-bezier(.3,1.3,.5,1) both}
.meme-pop span{font-size:16px;letter-spacing:.3em;opacity:.9}
@keyframes meme-pop{0%{opacity:0;transform:translate(-50%,-50%) rotate(-6deg) scale(2)}14%{opacity:1;transform:translate(-50%,-50%) rotate(-6deg) scale(.95)}22%{transform:translate(-50%,-50%) rotate(-6deg) scale(1)}80%{opacity:1}100%{opacity:0;transform:translate(-50%,-50%) rotate(-6deg) scale(1.04)}}
@media(max-width:760px){.meme-seal{width:48px;height:48px;padding:4px;font-size:16px}.meme-seal.s1{left:5%;top:78%}.meme-seal.s2{left:72%;top:70%}.meme-seal.s3{right:7%;top:90%}
  .meme-tag{display:none}.meme-line{font-size:13px;letter-spacing:.1em}.meme-pop{font-size:24px}}
@media(prefers-reduced-motion:reduce){.meme-seals .meme-seal,.meme-seals.on .meme-seal{animation:none;opacity:.92}.meme-line{transition:none}.meme-pop{animation:none;opacity:1}}