@import url('https://fonts.googleapis.com/css2?family=Didact+Gothic&family=Poiret+One&display=swap');

:root{
  --ink:#26171a;
  --rose:#eb879c;
  --blush:#ffb6c1;
  --bg:#fdf5f6;
  --card:#ffffff;
  --soft:#f8e9ec;
  --link:#b8475f;
  --mute:#8a666e;
  --sh-1:0 2px 4px rgba(38,23,26,.05), 0 10px 26px -14px rgba(38,23,26,.20);
  --sh-2:0 1px 2px rgba(38,23,26,.07), 0 18px 40px -20px rgba(38,23,26,.28);
  --ease:cubic-bezier(.32,.72,.35,1);
}

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

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

body{
  margin:0;
  padding:0 0 104px;
  font-family:'Didact Gothic',system-ui,-apple-system,'PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
  font-size:17px;
  line-height:1.78;
  color:var(--ink);
  background:var(--bg);
  background-image:radial-gradient(120% 60% at 50% 0%, #fbe9ec 0%, rgba(253,245,246,0) 62%);
  background-repeat:no-repeat;
}

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

a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}

h1,h2,h3{
  font-family:'Poiret One','Didact Gothic',system-ui,sans-serif;
  font-weight:400;
  line-height:1.24;
  letter-spacing:.03em;
  margin:0 0 .5em;
  color:var(--ink);
}

:focus-visible{
  outline:3px solid var(--rose);
  outline-offset:3px;
  border-radius:10px;
}

/* ---------- 底栏 ---------- */

.bar{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:60;
  display:flex;
  align-items:center;
  gap:8px;
  padding:10px 14px calc(10px + env(safe-area-inset-bottom));
  background:rgba(253,245,246,.93);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:0 -8px 26px -16px rgba(38,23,26,.42);
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:46px;
  padding:0 6px;
  color:var(--ink);
  font-family:'Poiret One',sans-serif;
  font-size:19px;
  letter-spacing:.08em;
  white-space:nowrap;
}
.brand:hover{text-decoration:none}
.brand-logo{width:32px;height:32px;border-radius:10px;object-fit:cover}

.menu-btn{
  margin-left:auto;
  width:46px;height:46px;
  display:grid;
  place-content:center;
  gap:5px;
  padding:0;
  border:0;
  border-radius:14px;
  background:var(--card);
  box-shadow:var(--sh-1);
  cursor:pointer;
  transition:transform .22s var(--ease);
}
.menu-btn:active{transform:scale(.96)}
.menu-btn span{
  display:block;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--ink);
  transition:transform .24s var(--ease);
}
.bar.is-open .menu-btn span:first-child{transform:translateY(3.5px) rotate(45deg)}
.bar.is-open .menu-btn span:last-child{transform:translateY(-3.5px) rotate(-45deg)}

.cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:46px;
  padding:0 15px;
  border-radius:14px;
  background:var(--ink);
  color:#fff;
  font-size:16px;
  letter-spacing:.05em;
  box-shadow:var(--sh-2);
  transition:background .22s var(--ease);
  white-space:nowrap;
}
.cta:hover{background:#3d262c;text-decoration:none}
.bar.is-open .cta{visibility:hidden}

/* ---------- 全屏菜单 ---------- */

.primary{
  position:fixed;
  inset:0;
  z-index:-1;
  display:grid;
  place-items:center;
  padding:32px 20px 116px;
  background:rgba(252,240,242,.97);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  opacity:0;
  visibility:hidden;
  transition:opacity .24s var(--ease),visibility .24s var(--ease);
}
.bar.is-open .primary{opacity:1;visibility:visible}

.nav-line{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:2px;
  margin:0;
}
.nav-line a{
  display:inline-flex;
  align-items:center;
  min-height:46px;
  padding:6px 20px;
  border-radius:14px;
  color:var(--ink);
  font-family:'Poiret One',sans-serif;
  font-size:21px;
  letter-spacing:.06em;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-line a:hover,
.nav-line a:focus-visible{background:rgba(235,135,156,.20);text-decoration:none}

/* ---------- 骨架 ---------- */

.shell{
  max-width:1160px;
  margin:0 auto;
  padding:24px 16px 36px;
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:22px;
}

.paper{min-width:0}

/* ---------- 头图 ---------- */

.paper > section{
  background:var(--card);
  border-radius:18px;
  box-shadow:var(--sh-1);
  padding:24px 20px;
  margin:0 0 20px;
  scroll-margin-top:96px;
}
.paper > section:last-child{margin-bottom:0}

.paper > section.hero{
  display:grid;
  gap:16px;
  align-items:center;
  padding:16px;
  min-height:45vh;
  background:linear-gradient(150deg,#fff 0%,#fdeef1 58%,#fbe3e8 100%);
  box-shadow:var(--sh-2);
}
.paper > section.hero.solo{grid-template-columns:minmax(0,1fr)}

.hero-media{
  order:1;
  overflow:hidden;
  border-radius:14px;
  background:var(--soft);
}
.hero-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  will-change:transform;
}

.hero-copy{
  order:0;
  text-align:center;
  padding:6px 4px;
}
.hero-copy h1{
  font-size:clamp(27px,6.4vw,42px);
  margin-bottom:.32em;
}
.hero-desc{
  margin:0;
  color:#5b4147;
  font-size:17px;
}

/* ---------- 正文 ---------- */

.paper > section > h2{font-size:26px;margin-bottom:.2em}

.paper > section > h2 + p{color:var(--mute);margin-top:0}

.paper > section p{margin:0 0 1em}
.paper > section p:last-child{margin-bottom:0}

.paper > section h3{font-size:21px;margin-top:1.5em}

.paper > section ul,
.paper > section ol{
  margin:0 0 1em;
  padding-left:1.3em;
}
.paper > section li{margin:0 0 .4em}
.paper > section li::marker{color:var(--rose)}

.paper > section blockquote{
  margin:0 0 1em;
  padding:14px 18px;
  border-radius:14px;
  background:var(--soft);
  color:#4a3238;
}
.paper > section blockquote p:last-child{margin-bottom:0}

.paper > section strong{color:#40272d}

/* ---------- 侧栏 ---------- */

.rail{
  background:var(--card);
  border-radius:18px;
  box-shadow:var(--sh-1);
  padding:20px 16px;
}
.rail h2{font-size:22px;margin-bottom:.1em}
.subtitle{
  margin:0 0 14px;
  color:var(--mute);
  font-size:16px;
}

.rail-list{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:4px;
  counter-reset:railc;
}
.rail-list li{counter-increment:railc}
.rail-list a{
  display:flex;
  align-items:center;
  gap:10px;
  min-height:44px;
  padding:6px 10px;
  border-radius:12px;
  color:var(--ink);
  font-size:16px;
  line-height:1.4;
  transition:background .2s var(--ease);
}
.rail-list a::before{
  content:counter(railc,decimal-leading-zero);
  font-family:'Poiret One',sans-serif;
  font-size:15px;
  color:var(--rose);
  letter-spacing:.06em;
}
.rail-list a:hover{background:rgba(255,182,193,.30);text-decoration:none}

/* ---------- 页脚 ---------- */

.site-footer{
  margin:0 16px 28px;
  padding:24px 20px;
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:10px 14px;
  background:var(--card);
  border-radius:18px;
  box-shadow:var(--sh-1);
}
.site-footer p{margin:0;font-size:16px}
.ft-brand{
  font-family:'Poiret One',sans-serif;
  font-size:20px;
  letter-spacing:.1em;
  color:var(--rose);
}
.ft-cell a{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  color:var(--ink);
}
.ft-legal{
  grid-column:1/-1;
  margin-top:4px;
  padding-top:12px;
  border-top:1px solid rgba(38,23,26,.12);
  color:var(--mute);
  font-size:16px;
  line-height:1.6;
}

/* ---------- 动效 ---------- */

html.rv .paper > section:not(.hero),
html.rv .rail,
html.rv .site-footer{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .3s var(--ease),transform .3s var(--ease);
}
html.rv .paper > section.in,
html.rv .rail.in,
html.rv .site-footer.in{
  opacity:1;
  transform:none;
}

/* ---------- 断点 ---------- */

@media (min-width:720px){
  .paper > section.hero{
    grid-template-columns:1.05fr 1fr;
    gap:26px;
    padding:20px;
  }
  .hero-media{order:0}
  .hero-copy{order:0;text-align:center}
  .hero-media img{aspect-ratio:4/3}
  .site-footer{grid-template-columns:repeat(4,minmax(0,1fr))}
}

@media (min-width:980px){
  body{padding-bottom:112px}
  .shell{
    grid-template-columns:minmax(0,1fr) 292px;
    gap:28px;
    padding:44px 24px 56px;
  }
  .rail{position:sticky;top:28px;align-self:start}
  .paper > section{padding:30px 28px}
  .paper > section.hero{padding:20px}
  .site-footer{max-width:1128px;margin:0 auto 32px;padding:30px 28px}
}

@media (min-width:1200px){
  .paper > section.hero{min-height:45vh}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  html.rv .paper > section:not(.hero),
  html.rv .rail,
  html.rv .site-footer{opacity:1;transform:none;transition:none}
  .primary,.menu-btn,.menu-btn span,.cta,.nav-line a,.rail-list a{transition:none}
  .hero-media img{will-change:auto}
}

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