@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;700&display=swap');

:root{
  --pink:#eb879c;
  --blush:#ffb6c1;
  --ink:#26171a;
  --paper:#fff6f8;
  --card:#ffffff;
  --muted:#6b5459;
  --link:#a8455f;
  --line:#f1dde2;
  --r:4px;
  --t:240ms cubic-bezier(.22,.61,.36,1);
  --sh-sm:0 2px 4px rgba(38,23,26,.05),0 10px 20px -12px rgba(38,23,26,.20);
  --sh-md:0 4px 8px rgba(38,23,26,.06),0 22px 44px -20px rgba(38,23,26,.28);
}

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

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

body{
  margin:0;
  font-family:'DM Sans','PingFang SC','Hiragino Sans GB','Microsoft YaHei',system-ui,sans-serif;
  font-size:17px;
  line-height:1.72;
  color:var(--ink);
  background:
    radial-gradient(880px 460px at 10% -10%, #ffe3ea 0%, rgba(255,227,234,0) 62%),
    radial-gradient(700px 420px at 94% 2%, #ffeef2 0%, rgba(255,238,242,0) 58%),
    var(--paper);
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;height:auto;display:block;border-radius:var(--r)}

a{color:var(--link);text-underline-offset:3px}

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

::selection{background:var(--blush);color:var(--ink)}

.page{padding-bottom:112px;overflow-x:hidden}

.hero{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:clamp(14px,4vw,44px);
  min-height:45vh;
  max-width:1120px;
  margin:0 auto;
  padding:clamp(28px,7vw,64px) clamp(18px,5vw,40px) clamp(20px,4vw,36px);
}

.hero__text{min-width:0;max-width:36ch}

.hero__h1{
  margin:0 0 12px;
  font-size:clamp(1.9rem,7vw,3.4rem);
  line-height:1.14;
  letter-spacing:-.025em;
  font-weight:700;
}

.hero__desc{
  margin:0;
  max-width:30ch;
  color:var(--muted);
  font-size:1rem;
  line-height:1.7;
}

.hero__art{
  flex:0 0 auto;
  width:clamp(104px,26vw,176px);
  aspect-ratio:1/1;
  display:grid;
  place-items:center;
  overflow:hidden;
  border-radius:46% 54% 55% 45%/52% 44% 56% 48%;
  background:linear-gradient(155deg,#ffffff,#ffe0e8);
  box-shadow:var(--sh-md);
  will-change:transform;
}

.hero__art svg{width:58%;height:58%}
.hero__img{width:100%;height:100%;object-fit:cover;border-radius:0}

.wrap{
  max-width:1120px;
  margin:0 auto;
  padding:0 clamp(18px,5vw,40px);
}

/* 正文 */
.prose__in > article{
  background:var(--card);
  border-radius:var(--r);
  box-shadow:var(--sh-sm);
  padding:clamp(20px,4.5vw,36px);
  margin:0 0 16px;
  scroll-margin-top:20px;
  transition:box-shadow var(--t);
}

.prose__in > article:hover{box-shadow:var(--sh-md)}

.prose__in > article > *:last-child{margin-bottom:0}

.prose__in h2{
  margin:0 0 6px;
  font-size:clamp(1.32rem,3.6vw,1.78rem);
  line-height:1.28;
  letter-spacing:-.015em;
}

.prose__in h3{
  margin:26px 0 6px;
  font-size:clamp(1.08rem,2.6vw,1.24rem);
  line-height:1.35;
}

.prose__in p{margin:12px 0;max-width:66ch}
.prose__in ul,.prose__in ol{margin:12px 0;padding-left:1.25em;max-width:66ch}
.prose__in li{margin:6px 0}
.prose__in strong{font-weight:700}

.prose__in blockquote{
  margin:18px 0;
  padding:12px 18px;
  border-left:4px solid var(--blush);
  background:#fff4f7;
  border-radius:var(--r);
  color:var(--muted);
}

.prose__in table{
  width:100%;
  border-collapse:collapse;
  margin:16px 0;
  font-size:.95rem;
}

.prose__in th,.prose__in td{
  padding:10px 12px;
  border-bottom:1px solid var(--line);
  text-align:left;
}

.prose__in figure{margin:18px 0}

hr{
  border:0;
  height:2px;
  width:56px;
  margin:12px 0 18px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--pink),var(--blush));
}

/* 侧栏 */
.side{margin:clamp(24px,5vw,40px) 0 0}

.side__t{
  margin:0;
  font-size:1.05rem;
  letter-spacing:.01em;
}

.side__t + hr{margin:10px 0 14px}

.side__list{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-direction:column;
  gap:8px;
}

.side__list a{
  display:flex;
  align-items:center;
  min-height:44px;
  padding:10px 16px;
  border-radius:999px;
  background:#fff;
  box-shadow:var(--sh-sm);
  color:var(--ink);
  font-size:.94rem;
  text-decoration:none;
  transition:transform var(--t),background var(--t),box-shadow var(--t);
}

.side__list a:hover{background:var(--blush);transform:translateX(3px);box-shadow:var(--sh-md)}

/* 底部固定条 */
.dock{
  position:fixed;
  left:50%;
  bottom:max(12px,env(safe-area-inset-bottom));
  transform:translateX(-50%);
  z-index:40;
  width:min(560px,calc(100% - 24px));
  display:grid;
  grid-template-columns:auto 1fr auto;
  align-items:center;
  gap:8px;
  padding:8px;
  border-radius:999px;
  border:1px solid rgba(255,182,193,.65);
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(14px) saturate(1.15);
  backdrop-filter:blur(14px) saturate(1.15);
  box-shadow:var(--sh-md);
}

.dock__more{position:relative;min-width:0}

.dock__sum{
  list-style:none;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:44px;
  padding:0 16px;
  border-radius:999px;
  background:#fff;
  box-shadow:var(--sh-sm);
  font-size:.94rem;
  cursor:pointer;
  user-select:none;
  transition:background var(--t),transform var(--t);
}

.dock__sum::-webkit-details-marker{display:none}
.dock__sum:hover{background:#fff2f5}
.dock__more[open] .dock__sum{background:var(--blush)}

.dock__menu{
  position:absolute;
  left:0;
  bottom:calc(100% + 12px);
  width:min(320px,calc(100vw - 48px));
  margin:0;
  padding:10px;
  list-style:none;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:6px;
  border-radius:14px;
  border:1px solid var(--line);
  background:#fff;
  box-shadow:var(--sh-md);
}

.dock__menu a{
  display:flex;
  align-items:center;
  min-height:42px;
  padding:8px 12px;
  border-radius:999px;
  color:var(--ink);
  font-size:.9rem;
  text-decoration:none;
  background:#fff6f8;
  transition:background var(--t);
}

.dock__menu a:hover{background:var(--blush)}

.dock__brand{
  justify-self:center;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:44px;
  padding:0 6px;
  color:var(--ink);
  font-weight:700;
  font-size:1rem;
  letter-spacing:-.015em;
  text-decoration:none;
  white-space:nowrap;
}

.dock__cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:44px;
  padding:0 18px;
  border-radius:999px;
  background:var(--pink);
  color:var(--ink);
  font-weight:700;
  font-size:.94rem;
  text-decoration:none;
  white-space:nowrap;
  box-shadow:0 6px 14px -6px rgba(235,135,156,.9);
  transition:transform var(--t),background var(--t);
}

.dock__cta:hover{background:var(--blush);transform:translateY(-1px)}

/* 页脚 */
.foot{
  max-width:1120px;
  margin:clamp(40px,8vw,90px) auto 0;
  padding:0 clamp(18px,5vw,40px) clamp(24px,5vw,48px);
}

.foot__brand{
  margin:0;
  font-size:clamp(2.5rem,12.5vw,6.6rem);
  line-height:.92;
  letter-spacing:-.05em;
  font-weight:700;
  color:var(--pink);
  background:linear-gradient(115deg,var(--pink),var(--blush));
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
}

.foot__row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px 20px;
  margin-top:16px;
  padding:16px 0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}

.foot__addr{
  font-style:normal;
  font-size:.94rem;
  color:var(--muted);
}

.foot__links{
  list-style:none;
  display:flex;
  flex-wrap:wrap;
  gap:6px;
  margin:0;
  padding:0;
}

.foot__links a{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:0 14px;
  border-radius:999px;
  background:#fff;
  box-shadow:var(--sh-sm);
  color:var(--ink);
  font-size:.9rem;
  text-decoration:none;
  transition:background var(--t),transform var(--t);
}

.foot__links a:hover{background:var(--blush);transform:translateY(-1px)}

.foot__copy{
  margin:14px 0 0;
  font-size:.86rem;
  color:var(--muted);
}

@media (min-width:700px){
  body{font-size:18px}
  .hero{padding-top:clamp(40px,8vw,80px)}
  .prose__in p,.prose__in li{line-height:1.82}
}

@media (min-width:960px){
  .wrap{
    display:grid;
    grid-template-columns:minmax(0,1fr) 236px;
    gap:clamp(28px,4vw,56px);
    align-items:start;
  }
  .side{
    position:sticky;
    top:28px;
    margin:0;
  }
  .foot__links{margin-left:auto}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition-duration:.01ms!important;animation-duration:.01ms!important}
}

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