@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500&family=Playfair+Display:ital,wght@0,400;0,700;0,900;1,400&family=Source+Serif+4:ital,wght@0,300;0,400;0,600;1,300&display=swap');

:root{
  --rose:#eb879c;
  --blush:#ffb6c1;
  --ink:#26171a;
  --paper:#fff8f9;
  --card:#ffffff;
  --muted:#6b4f55;
  --soft:#a2647a;
  --line:#f2d9de;
  --serif:"Playfair Display","Source Serif 4",Georgia,"Songti SC",serif;
  --body:"Source Serif 4",Georgia,"Songti SC","Noto Serif SC",serif;
  --mono:"JetBrains Mono",ui-monospace,"SFMono-Regular",monospace;
  --r:18px;
  --sh:0 1px 2px rgba(38,23,26,.05),0 6px 16px rgba(38,23,26,.06),0 18px 40px rgba(235,135,156,.13);
  --sh-lift:0 2px 4px rgba(38,23,26,.06),0 10px 24px rgba(38,23,26,.09),0 26px 58px rgba(235,135,156,.22);
}

*,*::before,*::after{box-sizing:border-box}

html{
  scroll-behavior:smooth;
  font-size:17px;
  -webkit-text-size-adjust:100%;
}

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--body);
  font-size:1.03rem;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;height:auto;display:block}

a{color:inherit}

:focus-visible{
  outline:3px solid var(--rose);
  outline-offset:3px;
  border-radius:8px;
}

/* 顶部细条 */
.site-head{
  position:sticky;
  top:0;
  z-index:30;
  background:rgba(255,248,249,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}

.ribbon{
  margin:0;
  padding:.35rem 1rem;
  background:linear-gradient(90deg,var(--rose),var(--blush) 70%,#ffd9e1);
  color:var(--ink);
  font-family:var(--mono);
  font-size:.76rem;
  letter-spacing:.1em;
  text-align:center;
}

/* 品牌居中 + 胶囊菜单 */
.bar{
  position:relative;
  max-width:1180px;
  margin:0 auto;
  padding:.55rem clamp(.8rem,3vw,1.6rem);
  display:flex;
  align-items:center;
}

.brand{
  position:absolute;
  left:50%;
  top:50%;
  transform:translate(-50%,-50%);
  z-index:3;
  display:inline-flex;
  align-items:center;
  gap:.5rem;
  padding:.3rem .7rem;
  border-radius:999px;
  background:var(--paper);
  text-decoration:none;
  color:var(--ink);
}

.brand b{
  font-family:var(--serif);
  font-weight:700;
  font-size:1rem;
  letter-spacing:.01em;
  white-space:nowrap;
}

.mono,
.mono-img{
  display:grid;
  place-items:center;
  width:2rem;
  height:2rem;
  flex:0 0 auto;
  border-radius:50%;
  background:var(--rose);
  color:#fff;
  font-family:var(--serif);
  font-weight:900;
  font-size:.95rem;
  box-shadow:0 2px 6px rgba(235,135,156,.5);
  object-fit:cover;
}

.menu{
  flex:1;
  min-width:0;
  padding:.2rem .35rem;
  border:1px solid var(--line);
  border-radius:999px;
  background:#fff;
  box-shadow:0 1px 2px rgba(38,23,26,.04),0 4px 12px rgba(235,135,156,.12);
}

.menu ol{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:.15rem;
}

.menu li:nth-child(3){margin-right:clamp(5rem,15vw,12.5rem)}

.menu a{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:.5rem .7rem;
  border-radius:999px;
  border:1px solid transparent;
  font-size:.83rem;
  line-height:1.2;
  text-decoration:none;
  color:var(--ink);
  white-space:nowrap;
  transition:background .24s ease,box-shadow .24s ease,transform .24s ease,border-color .24s ease;
}

.menu a:hover{
  background:var(--paper);
  border-color:var(--line);
  box-shadow:0 2px 8px rgba(38,23,26,.08);
  transform:translateY(-1px);
}

/* Hero */
.hero{
  position:relative;
  overflow:hidden;
  background:linear-gradient(158deg,#ffffff 0%,#fff4f7 52%,#ffe7ed 100%);
  border-bottom:1px solid var(--line);
}

.hero-in{
  position:relative;
  z-index:1;
  max-width:1180px;
  margin:0 auto;
  min-height:45vh;
  padding:clamp(1.8rem,4.5vw,3rem) clamp(.9rem,3vw,1.6rem) clamp(3.4rem,8vw,5rem);
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  justify-content:center;
  gap:.85rem;
}

.eyebrow{
  display:block;
  font-family:var(--mono);
  font-size:.75rem;
  letter-spacing:.16em;
  color:var(--soft);
  margin:0 0 .3rem;
}

h1{
  margin:0;
  max-width:22ch;
  font-family:var(--serif);
  font-weight:900;
  font-size:clamp(2rem,6.2vw,4rem);
  line-height:1.08;
  letter-spacing:-.012em;
}

.lede{
  margin:0;
  max-width:46ch;
  color:var(--muted);
  font-size:1rem;
}

.hero-act{
  display:flex;
  flex-wrap:wrap;
  gap:.6rem;
  margin-top:.5rem;
}

.btn{
  display:inline-flex;
  align-items:center;
  min-height:46px;
  padding:.65rem 1.25rem;
  border-radius:999px;
  border:1px solid var(--ink);
  background:var(--ink);
  color:#fff9fa;
  font-size:.9rem;
  text-decoration:none;
  box-shadow:var(--sh);
  transition:transform .24s ease,box-shadow .24s ease,background .24s ease;
}

.btn:hover{transform:translateY(-2px);box-shadow:var(--sh-lift)}

.btn.ghost{
  background:#fff;
  color:var(--ink);
  border-color:var(--line);
}

.slant{
  position:absolute;
  left:0;
  right:0;
  bottom:-1px;
  height:clamp(34px,7vw,72px);
  background:linear-gradient(100deg,var(--rose),var(--blush) 65%,#ffd7e0);
  clip-path:polygon(0 66%,100% 0,100% 100%,0 100%);
}

/* 正文网格 */
main{padding-bottom:1rem}

.wrap{
  max-width:1180px;
  margin:0 auto;
  padding:clamp(1.8rem,5vw,3.4rem) clamp(.9rem,3vw,1.6rem);
  display:grid;
  grid-template-columns:minmax(0,1fr) 18.5rem;
  gap:clamp(1.4rem,3.5vw,2.6rem);
  align-items:start;
}

main article{scroll-margin-top:8.5rem}

.flow{min-width:0}

.flow > h2{
  margin:0 0 1.2rem;
  font-family:var(--serif);
  font-weight:700;
  font-size:clamp(1.4rem,3.4vw,1.95rem);
  line-height:1.25;
}

/* 正文 */
.prose{min-width:0}

.prose article{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r);
  padding:clamp(1.2rem,3.2vw,2rem);
  margin-bottom:1.1rem;
  box-shadow:var(--sh);
  transition:box-shadow .26s ease,transform .26s ease;
}

.prose article:hover{box-shadow:var(--sh-lift);transform:translateY(-2px)}
.prose article:last-child{margin-bottom:0}

.prose small{
  display:block;
  font-family:var(--mono);
  font-size:.74rem;
  letter-spacing:.16em;
  color:var(--soft);
  margin-bottom:.35rem;
}

.prose h2{
  margin:0 0 .8rem;
  font-family:var(--serif);
  font-weight:700;
  font-size:clamp(1.35rem,3.4vw,1.85rem);
  line-height:1.25;
}

.prose h3{
  margin:1.5rem 0 .5rem;
  font-family:var(--serif);
  font-weight:700;
  font-size:1.15rem;
  line-height:1.35;
}

.prose p{margin:0 0 1rem}
.prose p:last-child{margin-bottom:0}

.prose a{color:#ac3a5b;text-decoration-thickness:1px;text-underline-offset:3px}
.prose a:hover{color:var(--ink)}

.prose ul,.prose ol{margin:0 0 1rem;padding-left:1.3rem}
.prose li{margin-bottom:.45rem}

.prose blockquote{
  margin:1.1rem 0;
  padding:.75rem 1rem;
  border-left:3px solid var(--blush);
  border-radius:0 12px 12px 0;
  background:#fff5f7;
  color:#4a3237;
}

.prose code{
  font-family:var(--mono);
  font-size:.86em;
  padding:.1em .35em;
  border-radius:6px;
  background:#fdeef1;
}

/* 侧栏 */
.side{
  position:sticky;
  top:7.6rem;
  display:flex;
  flex-direction:column;
  gap:.9rem;
}

.side-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r);
  padding:1.1rem 1rem;
  box-shadow:var(--sh);
}

.side-card h3{
  margin:0;
  font-family:var(--serif);
  font-weight:700;
  font-size:1.02rem;
  line-height:1.35;
}

.side-list{
  list-style:none;
  counter-reset:s;
  margin:.7rem 0 0;
  padding:0;
}

.side-list li{counter-increment:s}

.side-list a{
  display:flex;
  align-items:center;
  gap:.55rem;
  min-height:44px;
  padding:.45rem .5rem;
  border-radius:12px;
  font-size:.9rem;
  line-height:1.35;
  text-decoration:none;
  color:var(--ink);
  transition:background .22s ease,color .22s ease;
}

.side-list a::before{
  content:counter(s,decimal-leading-zero);
  font-family:var(--mono);
  font-size:.72rem;
  color:var(--rose);
  flex:0 0 auto;
}

.side-list a:hover{background:#fff3f6;color:#a8395a}

.side-note{
  border-radius:var(--r);
  border:1px dashed var(--blush);
  background:#fff3f6;
  padding:1rem;
}

.side-note p{
  margin:0;
  font-size:.9rem;
  line-height:1.6;
  color:#5a3f45;
}

/* 页脚 */
.site-foot{
  margin-top:clamp(2rem,5vw,3.5rem);
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,#fff8f9,#ffeaf0);
}

.foot-cta{
  max-width:1180px;
  margin:clamp(1.8rem,5vw,2.8rem) auto 0;
  width:calc(100% - clamp(1.8rem,6vw,3.2rem));
  padding:clamp(1.4rem,4vw,2.4rem);
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:.6rem;
  border-radius:26px;
  background:var(--ink);
  color:#fff6f8;
  box-shadow:var(--sh-lift);
}

.foot-cta small{
  font-family:var(--mono);
  font-size:.74rem;
  letter-spacing:.16em;
  color:var(--blush);
}

.foot-cta h2{
  margin:0;
  font-family:var(--serif);
  font-weight:700;
  font-size:clamp(1.4rem,4vw,2rem);
  line-height:1.25;
  color:#fff;
}

.foot-cta p{
  margin:0;
  max-width:44ch;
  font-size:.95rem;
  color:#e9ced5;
}

.foot-cta .btn{
  margin-top:.5rem;
  background:var(--rose);
  border-color:var(--rose);
  color:var(--ink);
}

.foot-row{
  max-width:1180px;
  margin:0 auto;
  padding:1.3rem clamp(.9rem,3vw,1.6rem) .4rem;
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:1rem;
  border-top:1px solid var(--line);
}

.foot-brand{
  display:flex;
  align-items:center;
  gap:.65rem;
  max-width:32rem;
}

.foot-brand p{
  margin:0;
  font-size:.82rem;
  line-height:1.55;
  color:var(--muted);
}

.foot-nav ol{
  list-style:none;
  display:flex;
  flex-wrap:wrap;
  gap:.15rem;
  margin:0;
  padding:0;
}

.foot-nav a{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:.5rem .7rem;
  border-radius:999px;
  font-size:.84rem;
  text-decoration:none;
  color:var(--ink);
  transition:background .22s ease,box-shadow .22s ease;
}

.foot-nav a:hover{background:#fff;box-shadow:0 2px 8px rgba(38,23,26,.08)}

.copy{
  max-width:1180px;
  margin:.4rem auto 1.3rem;
  padding:0 clamp(.9rem,3vw,1.6rem);
  text-align:center;
  font-size:.78rem;
  color:var(--muted);
}

/* 滚动显现 */
.rv{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .28s ease,transform .28s ease,box-shadow .26s ease;
}

.rv.in{opacity:1;transform:none}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .rv{opacity:1;transform:none;transition:none}
  .prose article,.btn,.menu a{transition:none}
}

/* 断点 */
@media (max-width:900px){
  .bar{flex-direction:column;gap:.45rem;padding-top:.5rem;padding-bottom:.6rem}
  .brand{position:static;transform:none;order:-1;background:transparent;padding:.2rem}
  .menu{width:100%;overflow-x:auto;padding:.2rem .3rem}
  .menu ol{justify-content:flex-start;width:max-content;padding:0 .2rem}
  .menu li:nth-child(3){margin-right:0}
  .menu{-webkit-overflow-scrolling:touch}
  .wrap{grid-template-columns:minmax(0,1fr)}
  .side{position:static}
  .hero-in{min-height:0;padding-top:1.6rem;padding-bottom:3rem}
  main article{scroll-margin-top:9.5rem}
  .foot-row{justify-content:flex-start}
}

@media (max-width:560px){
  html{font-size:16.5px}
  h1{font-size:clamp(1.85rem,8vw,2.5rem)}
  .ribbon{font-size:.7rem;letter-spacing:.06em}
  .hero-act{width:100%}
  .hero-act .btn{flex:1 1 auto;justify-content:center}
  .foot-cta h2{font-size:1.4rem}
  .copy{font-size:.74rem}
}
</｜DSML｜ parameter>
</｜DSML｜ invoke>
</｜DSML｜ calls>

button[aria-expanded]{min-width:44px;min-height:44px}