@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;700;800&display=swap');

:root{
  --mint:#b4fde1;
  --blue:#add8e6;
  --ink:#172620;
  --paper:#f3fffb;
  --card:#ffffff;
  --line:rgba(23,38,32,.22);
  --sh-in:inset -4px -4px 12px rgba(23,38,32,.07);
  --sh-out:6px 9px 22px rgba(23,38,32,.13);
  --r-lg:28px;
  --r-md:22px;
  --bar:78px;
}

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

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

body{
  margin:0;
  overflow-x:hidden;
  font-family:Inter,system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.75;
  color:var(--ink);
  background:
    radial-gradient(880px 520px at 90% -6%,var(--blue) 0%,transparent 62%),
    radial-gradient(720px 480px at -8% 6%,var(--mint) 0%,transparent 58%),
    linear-gradient(180deg,#f6fffc 0%,#ecfff8 45%,#f9fffd 100%);
  background-attachment:fixed;
}

body.lock{overflow:hidden}

img{display:block;max-width:100%;height:auto}
a{color:var(--ink)}
p{margin:0 0 14px}
hr{border:0;border-top:3px dashed rgba(23,38,32,.24);margin:14px 0}

:focus-visible{outline:3px solid #0b6a4d;outline-offset:3px}

.sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

.bar{
  position:sticky;
  top:0;
  z-index:70;
  display:flex;
  align-items:center;
  gap:12px;
  min-height:var(--bar);
  padding:10px clamp(12px,3vw,28px);
  background:linear-gradient(180deg,rgba(255,255,255,.94),rgba(240,255,250,.88));
  backdrop-filter:blur(10px);
  border-bottom:3px solid var(--ink);
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:9px;
  min-height:44px;
  padding:8px 15px;
  border:3px solid var(--ink);
  border-radius:18px;
  background:linear-gradient(160deg,#ffffff,var(--mint));
  box-shadow:var(--sh-in),3px 4px 10px rgba(23,38,32,.18);
  font-size:20px;
  font-weight:800;
  letter-spacing:-.01em;
  text-decoration:none;
  transition:transform .2s cubic-bezier(.34,1.56,.64,1);
}

.brand:active{transform:translateY(2px) scale(.98)}
.mark{font-size:19px;line-height:1}
.mark-img{width:26px;height:26px;object-fit:contain}

.bar-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:10px;
}

.cta{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 18px;
  border:3px solid var(--ink);
  border-radius:16px;
  background:linear-gradient(160deg,var(--mint),#9ef0d6);
  box-shadow:var(--sh-in),4px 5px 12px rgba(23,38,32,.2);
  font-size:16px;
  font-weight:800;
  text-decoration:none;
  transition:transform .2s cubic-bezier(.34,1.56,.64,1);
}

.cta:active{transform:translateY(2px) scale(.98)}

.burger{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  min-width:44px;
  padding:0 13px;
  border:3px solid var(--ink);
  border-radius:16px;
  background:linear-gradient(160deg,#ffffff,var(--blue));
  box-shadow:var(--sh-in),4px 5px 12px rgba(23,38,32,.2);
  font:inherit;
  font-size:16px;
  font-weight:800;
  color:var(--ink);
  cursor:pointer;
  position:relative;
  z-index:80;
}

.burger-ico{
  width:18px;
  height:3px;
  border-radius:2px;
  background:var(--ink);
  box-shadow:0 -6px 0 var(--ink),0 6px 0 var(--ink);
  transition:transform .25s cubic-bezier(.34,1.56,.64,1);
}

.menu{
  position:fixed;
  inset:0;
  z-index:65;
  display:flex;
  align-items:center;
  justify-content:center;
  overflow-y:auto;
  padding:calc(var(--bar) + 24px) 18px 40px;
  background:linear-gradient(160deg,#d6fff0,#cbe8ff 52%,#e8fff7);
  opacity:0;
  visibility:hidden;
  transform:scale(.97);
  transition:opacity .25s ease-out,transform .32s cubic-bezier(.34,1.56,.64,1),visibility .25s;
}

.menu.open{opacity:1;visibility:visible;transform:none}

.menu-list{
  list-style:none;
  margin:0;
  padding:0;
  width:min(560px,100%);
  display:grid;
  gap:12px;
}

.menu-list li{
  opacity:0;
  transform:translateY(14px) scale(.96);
  transition:opacity .3s cubic-bezier(.34,1.56,.64,1),transform .3s cubic-bezier(.34,1.56,.64,1);
  transition-delay:calc(var(--i,0) * 45ms);
}

.menu.open li{opacity:1;transform:none}

.menu-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:54px;
  padding:12px 20px;
  border:3px solid var(--ink);
  border-radius:20px;
  background:linear-gradient(160deg,#ffffff,#effffa);
  box-shadow:var(--sh-in),5px 6px 14px rgba(23,38,32,.15);
  font-size:clamp(18px,2.6vw,22px);
  font-weight:800;
  text-decoration:none;
  transition:transform .2s cubic-bezier(.34,1.56,.64,1),background .2s;
}

.menu-list a::after{
  content:"›";
  font-size:22px;
  line-height:1;
  opacity:.45;
}

.menu-list a:hover,.menu-list a:focus-visible{
  background:linear-gradient(160deg,var(--mint),#c7f6ff);
  transform:translateX(3px);
}

main{position:relative;z-index:1}

.wrap{
  width:min(1180px,100%);
  margin:0 auto;
  padding:0 clamp(12px,3vw,28px);
}

.hero{
  position:relative;
  overflow:hidden;
  display:flex;
  align-items:center;
  min-height:70vh;
  padding:clamp(26px,5vh,54px) 0 clamp(26px,5vh,48px);
}

.ghost{
  position:absolute;
  right:-.05em;
  top:50%;
  transform:translateY(-50%);
  z-index:0;
  white-space:nowrap;
  pointer-events:none;
  user-select:none;
  font-size:clamp(110px,21vw,270px);
  font-weight:800;
  line-height:.86;
  letter-spacing:-.05em;
  color:rgba(23,38,32,.06);
  -webkit-text-stroke:3px rgba(23,38,32,.13);
}

.hero-grid{
  position:relative;
  z-index:1;
  width:100%;
  display:grid;
  grid-template-columns:minmax(0,42%) minmax(0,58%);
  align-items:center;
  gap:clamp(18px,4vw,46px);
}

.hero-grid.solo{grid-template-columns:minmax(0,1fr)}

.hero-media{
  border:4px solid var(--ink);
  border-radius:var(--r-lg);
  overflow:hidden;
  aspect-ratio:4/3;
  background:linear-gradient(160deg,var(--mint),var(--blue));
  box-shadow:var(--sh-in),8px 10px 26px rgba(23,38,32,.22);
}

.hero-img{width:100%;height:100%;object-fit:cover}

.hero-copy{text-align:right}

h1{
  margin:0;
  font-size:clamp(30px,4.6vw,54px);
  line-height:1.24;
  font-weight:800;
  letter-spacing:-.02em;
  text-wrap:balance;
}

.shell{
  display:grid;
  grid-template-columns:258px minmax(0,1fr);
  align-items:start;
  gap:clamp(18px,3vw,32px);
  padding:6px 0 64px;
}

.side{
  position:sticky;
  top:calc(var(--bar) + 16px);
  padding:16px 15px;
  border:3px solid var(--ink);
  border-radius:var(--r-lg);
  background:linear-gradient(170deg,#ffffff,#e6fff6);
  box-shadow:var(--sh-in),6px 8px 20px rgba(23,38,32,.14);
}

.side h2{
  margin:0;
  font-size:16px;
  font-weight:800;
  letter-spacing:.08em;
}

.side hr{margin:10px 0 12px}

.side-list{list-style:none;margin:0;padding:0;display:grid;gap:4px}

.side-list a{
  display:block;
  min-height:40px;
  padding:8px 10px;
  border-radius:14px;
  font-size:16px;
  line-height:1.5;
  font-weight:600;
  text-decoration:none;
  transition:background .18s ease-out,transform .18s ease-out;
}

.side-list a:hover,.side-list a:focus-visible{
  background:var(--mint);
  transform:translateX(2px);
}

.prose{min-width:0}
.prose > div{
  margin:0 0 22px;
  padding:clamp(18px,2.6vw,30px);
  border:3px solid rgba(23,38,32,.88);
  border-radius:var(--r-lg);
  background:linear-gradient(170deg,#ffffff,#f1fffb);
  box-shadow:var(--sh-in),6px 9px 22px rgba(23,38,32,.12);
  scroll-margin-top:calc(var(--bar) + 20px);
  animation:rise .6s cubic-bezier(.34,1.56,.64,1) both;
}

.prose > div:nth-child(1){animation-delay:.04s}
.prose > div:nth-child(2){animation-delay:.09s}
.prose > div:nth-child(3){animation-delay:.14s}
.prose > div:nth-child(4){animation-delay:.19s}
.prose > div:nth-child(5){animation-delay:.24s}
.prose > div:nth-child(6){animation-delay:.29s}
.prose > div:nth-child(7){animation-delay:.34s}

@keyframes rise{
  from{opacity:0;transform:translateY(18px) scale(.985)}
  to{opacity:1;transform:none}
}

.prose h2{
  margin:0 0 4px;
  font-size:clamp(21px,2.4vw,26px);
  line-height:1.35;
  font-weight:800;
  letter-spacing:-.01em;
}

.prose h3{
  margin:18px 0 4px;
  font-size:18px;
  line-height:1.45;
  font-weight:800;
}

.prose p{line-height:1.85}
.prose ul,.prose ol{padding-left:1.25em;margin:0 0 14px}
.prose li{margin:.32em 0}
.prose strong{font-weight:800}
.prose a{
  color:#0a6146;
  text-decoration:underline;
  text-decoration-thickness:2px;
  text-underline-offset:3px;
}
.prose img{
  margin:16px 0;
  border:3px solid var(--ink);
  border-radius:var(--r-md);
}
.prose blockquote{
  margin:0 0 14px;
  padding:12px 18px;
  border-left:6px solid var(--mint);
  border-radius:0 18px 18px 0;
  background:#f4fffb;
}
.prose time{
  font-size:16px;
  font-weight:700;
  letter-spacing:.02em;
  opacity:.75;
}
.prose code{
  font-size:16px;
  padding:1px 6px;
  border-radius:8px;
  background:#eafff6;
}

.foot{
  margin-top:16px;
  padding:clamp(22px,4vw,38px) clamp(12px,3vw,28px) 26px;
  border-top:4px solid var(--ink);
  background:linear-gradient(180deg,#f1fffa,#d9ffee);
}

.foot-top{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  width:min(1180px,100%);
  margin:0 auto 22px;
}

.foot-brand{
  margin:0;
  font-size:20px;
  font-weight:800;
}

.foot-form{display:flex;flex-wrap:wrap;gap:8px}

.foot-form input{
  min-height:44px;
  padding:0 14px;
  border:3px solid var(--ink);
  border-radius:16px;
  background:#ffffff;
  box-shadow:var(--sh-in);
  font:inherit;
  font-size:16px;
  color:var(--ink);
}

.foot-form button{
  min-height:44px;
  padding:0 20px;
  border:3px solid var(--ink);
  border-radius:16px;
  background:linear-gradient(160deg,var(--mint),#a9e8ff);
  box-shadow:var(--sh-in),4px 5px 12px rgba(23,38,32,.18);
  font:inherit;
  font-size:16px;
  font-weight:800;
  color:var(--ink);
  cursor:pointer;
}

.foot-cols{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:16px;
  width:min(1180px,100%);
  margin:0 auto;
}

.foot-cols dl{
  margin:0;
  padding:14px 16px;
  border:3px solid var(--ink);
  border-radius:var(--r-md);
  background:#ffffff;
  box-shadow:var(--sh-in),4px 6px 14px rgba(23,38,32,.12);
}

.foot-cols dt{
  margin-bottom:4px;
  font-size:16px;
  font-weight:800;
  letter-spacing:.08em;
}

.foot-cols dd{margin:0}

.foot-cols a{
  display:inline-block;
  min-height:40px;
  padding:9px 2px;
  font-size:16px;
  line-height:1.5;
  text-decoration:none;
}

.foot-cols a:hover,.foot-cols a:focus-visible{text-decoration:underline}

.foot-end{
  width:min(1180px,100%);
  margin:24px auto 0;
  text-align:center;
  font-size:16px;
}

.foot-end p{margin:0}

@media (max-width:860px){
  .shell{grid-template-columns:minmax(0,1fr)}
  .side{position:static}
  .hero{min-height:auto}
  .hero-grid{grid-template-columns:minmax(0,1fr)}
  .hero-copy{order:-1;text-align:right}
  .ghost{font-size:clamp(88px,30vw,170px);opacity:.9}
  .foot-cols{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
  .foot-cols dl{padding:12px 10px}
}

@media (max-width:520px){
  .brand{font-size:17px;padding:8px 11px;gap:6px}
  .cta{padding:0 13px}
  .burger-txt{display:none}
  .foot-cols{grid-template-columns:minmax(0,1fr)}
  .foot-form input{flex:1 1 140px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-delay:0ms !important;
    transition-duration:.001ms !important;
  }
}

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