@import url('https://fonts.googleapis.com/css2?family=Anton&family=Epilogue:wght@400;500;600;700&display=swap');

:root{
  --mint:#b4fde1;
  --sky:#add8e6;
  --ink:#172620;
  --mint-deep:#39d3a4;
  --paper:#f1fffa;
  --paper-2:#d8f6ec;
  --line:rgba(180,253,225,.42);
  --line-soft:rgba(180,253,225,.2);
  --r-lg:24px;
  --r-md:18px;
  --pill:999px;
  --clay:inset -3px -3px 9px rgba(23,38,32,.18), 6px 6px 0 rgba(0,0,0,.32);
  --bounce:cubic-bezier(.34,1.56,.64,1);
}

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

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

body{
  margin:0;
  font-family:'Epilogue','PingFang SC','Hiragino Sans GB','Microsoft YaHei',system-ui,sans-serif;
  font-size:17px;
  line-height:1.75;
  color:var(--mint);
  background-color:var(--ink);
  background-image:
    radial-gradient(circle at 14% 4%, rgba(180,253,225,.20), transparent 52%),
    radial-gradient(circle at 86% 0%, rgba(173,216,230,.20), transparent 48%),
    radial-gradient(circle at 50% 104%, rgba(57,211,164,.14), transparent 60%);
  background-attachment:fixed;
  min-height:100vh;
  overflow-x:hidden;
}

/* ---------- 顶部 ---------- */
.top{
  padding:16px 18px 12px;
  border-bottom:4px solid var(--line);
}

.top-in{
  max-width:1180px;
  margin:0 auto;
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:12px;
}

.nav{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
}

.nav-b{justify-content:flex-end}

.top-b{
  display:flex;
  align-items:center;
  gap:10px;
  justify-self:end;
  flex-wrap:wrap;
  justify-content:flex-end;
}

.nv{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:8px 13px;
  border-radius:var(--pill);
  border:3px solid transparent;
  color:var(--mint);
  text-decoration:none;
  font-size:16px;
  font-weight:600;
  letter-spacing:.02em;
  transition:transform .2s var(--bounce), background .2s ease-out, color .2s ease-out, box-shadow .2s ease-out, border-color .2s ease-out;
}

.nv:hover,
.nv:focus-visible{
  background:linear-gradient(180deg,var(--mint),var(--sky));
  color:var(--ink);
  border-color:var(--ink);
  box-shadow:inset -2px -2px 6px rgba(23,38,32,.28), 3px 3px 0 rgba(0,0,0,.38);
  transform:translateY(-2px);
}

.brand{
  justify-self:center;
  display:inline-flex;
  align-items:center;
  gap:9px;
  min-height:52px;
  padding:7px 20px;
  border-radius:var(--pill);
  border:4px solid var(--ink);
  background:linear-gradient(158deg,var(--mint),var(--sky));
  color:var(--ink);
  text-decoration:none;
  font-family:'Anton','Epilogue','PingFang SC','Microsoft YaHei',sans-serif;
  font-size:clamp(19px,2.5vw,27px);
  letter-spacing:.07em;
  box-shadow:inset -3px -3px 8px rgba(23,38,32,.26), 0 6px 0 rgba(0,0,0,.36);
  transition:transform .2s var(--bounce);
}

.brand:hover{transform:translateY(-3px) rotate(-1.2deg)}

.brand-dot{
  width:15px;
  height:15px;
  border-radius:50%;
  background:var(--ink);
  box-shadow:inset 0 0 0 4px var(--mint);
  flex:0 0 auto;
}

.brand-logo{
  width:28px;
  height:28px;
  object-fit:contain;
  display:block;
}

.find{
  display:flex;
  align-items:center;
  gap:4px;
  padding:3px 3px 3px 12px;
  border-radius:var(--pill);
  border:3px solid var(--line);
  background:rgba(180,253,225,.08);
  transition:border-color .2s ease-out;
}

.find:focus-within{border-color:var(--mint)}

.find input{
  border:0;
  background:transparent;
  color:var(--mint);
  font:inherit;
  font-size:16px;
  width:88px;
  min-height:40px;
  outline:none;
}

.find input::placeholder{color:rgba(180,253,225,.6)}

.find button{
  border:2px solid var(--ink);
  border-radius:var(--pill);
  background:linear-gradient(180deg,var(--mint),var(--sky));
  color:var(--ink);
  font:inherit;
  font-size:15px;
  font-weight:700;
  min-height:36px;
  padding:4px 14px;
  cursor:pointer;
  transition:transform .18s var(--bounce);
}

.find button:hover{transform:translateY(-2px)}

/* ---------- 粘性锚点条 ---------- */
.subbar{
  position:sticky;
  top:0;
  z-index:30;
  padding:7px 16px;
  background:rgba(23,38,32,.94);
  backdrop-filter:blur(8px);
  border-bottom:3px solid var(--line-soft);
}

.subnav{
  max-width:1180px;
  margin:0 auto;
  display:flex;
  gap:7px;
  overflow-x:auto;
  scrollbar-width:none;
  padding:2px 0;
}

.subnav::-webkit-scrollbar{display:none}

.chip{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  min-height:42px;
  padding:7px 14px;
  border-radius:var(--pill);
  border:3px solid var(--line);
  color:var(--mint);
  text-decoration:none;
  font-size:16px;
  font-weight:600;
  transition:transform .18s var(--bounce), background .18s ease-out, color .18s ease-out, border-color .18s ease-out;
}

.chip:hover,
.chip:focus-visible{
  background:var(--mint);
  color:var(--ink);
  border-color:var(--ink);
  transform:translateY(-2px);
}

/* ---------- 主体骨架 ---------- */
main{
  max-width:1180px;
  margin:0 auto;
  padding:22px 18px 60px;
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:26px;
}

main > div{
  grid-column:1;
  scroll-margin-top:88px;
  min-width:0;
}

main > div:not(.hero):not(.rail-wrap){
  position:relative;
  padding:26px 22px 34px;
  border:4px solid var(--ink);
  border-radius:0;
  background:linear-gradient(180deg,var(--paper),var(--paper-2));
  color:var(--ink);
  box-shadow:var(--clay);
}

main > div:not(.hero):not(.rail-wrap)::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:9px;
  background:linear-gradient(90deg,var(--mint-deep),var(--sky));
}

main > div h2{
  font-family:'Anton','Epilogue','PingFang SC','Microsoft YaHei',sans-serif;
  font-size:clamp(23px,3.3vw,33px);
  line-height:1.22;
  letter-spacing:.01em;
  margin:0 0 12px;
  color:var(--ink);
}

main > div h3{
  font-size:20px;
  line-height:1.4;
  margin:22px 0 8px;
  color:var(--ink);
}

main > div p,
main > div li{font-size:17px}

main > div p{margin:0 0 14px}

main > div ul,
main > div ol{padding-left:22px;margin:0 0 14px}

main > div li{margin:0 0 6px}

main > div a{
  color:#0c6d54;
  text-decoration:underline;
  text-decoration-thickness:3px;
  text-underline-offset:3px;
}

main > div a:hover{color:#0a4a3a}

main > div img{
  max-width:100%;
  height:auto;
  display:block;
  border:4px solid var(--ink);
  border-radius:var(--r-md);
}

main > div blockquote{
  margin:0 0 14px;
  padding:12px 16px;
  border-left:8px solid var(--mint-deep);
  border-radius:0 var(--r-md) var(--r-md) 0;
  background:rgba(180,253,225,.55);
}

/* ---------- 首屏 ---------- */
.hero{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
  align-items:center;
  gap:30px;
  grid-column:1 / -1;
  min-height:calc(100svh - 200px);
  padding:6px 0 12px;
}

.hero-art{
  margin:0;
  position:relative;
  aspect-ratio:4 / 5;
  max-height:72svh;
  border:4px solid var(--mint);
  border-radius:var(--r-lg);
  overflow:hidden;
  background:linear-gradient(150deg,var(--mint),var(--sky));
  box-shadow:inset -6px -6px 16px rgba(23,38,32,.30), 10px 10px 0 rgba(0,0,0,.36);
  will-change:transform;
}

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

.hero-blob{
  width:100%;
  height:100%;
  background:
    radial-gradient(circle at 38% 32%, rgba(255,255,255,.95), transparent 58%),
    linear-gradient(150deg,var(--mint),var(--sky));
}

.hero-copy{text-align:right}

.hero-kick{
  margin:0 0 10px;
  font-size:15px;
  font-weight:700;
  letter-spacing:.3em;
  color:var(--sky);
}

h1{
  font-family:'Anton','Epilogue','PingFang SC','Microsoft YaHei',sans-serif;
  font-size:clamp(33px,6.6vw,62px);
  line-height:1.06;
  letter-spacing:.01em;
  margin:0 0 22px;
  color:var(--mint);
  text-shadow:4px 4px 0 rgba(0,0,0,.38);
}

.hero-jump{
  display:inline-flex;
  align-items:center;
  min-height:50px;
  padding:10px 24px;
  border-radius:var(--pill);
  border:4px solid var(--ink);
  background:linear-gradient(180deg,var(--mint),var(--sky));
  color:var(--ink);
  text-decoration:none;
  font-weight:700;
  font-size:17px;
  box-shadow:inset -3px -3px 8px rgba(23,38,32,.26), 4px 4px 0 rgba(0,0,0,.38);
  transition:transform .2s var(--bounce);
}

.hero-jump:hover{transform:translateY(-3px)}

/* ---------- 侧栏 ---------- */
.rail-wrap{grid-column:1}

.rail{
  padding:18px 16px;
  border:4px solid var(--ink);
  border-radius:0;
  background:linear-gradient(180deg,var(--paper),var(--paper-2));
  color:var(--ink);
  box-shadow:var(--clay);
}

.rail h2{
  font-family:'Anton','Epilogue','PingFang SC','Microsoft YaHei',sans-serif;
  font-size:22px;
  letter-spacing:.04em;
  margin:0 0 9px;
  color:var(--ink);
}

.rail hr{
  border:0;
  border-top:4px solid var(--ink);
  margin:0 0 10px;
}

.rail ul{
  list-style:none;
  margin:0;
  padding:0;
}

.rail li{margin:0}

.rail a{
  display:block;
  padding:10px 0;
  min-height:42px;
  color:var(--ink);
  text-decoration:none;
  font-weight:600;
  font-size:16px;
  border-bottom:2px dashed rgba(23,38,32,.22);
  transition:padding-left .18s ease-out, color .18s ease-out;
}

.rail a:hover{padding-left:7px;color:#0c6d54}

/* ---------- 页脚 ---------- */
footer{
  margin-top:8px;
  padding:34px 18px 20px;
  border-top:5px solid var(--mint);
  background:rgba(0,0,0,.24);
}

.foot-grid{
  max-width:1180px;
  margin:0 auto;
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}

footer dl{margin:0;min-width:0}

footer dt{
  font-family:'Anton','Epilogue','PingFang SC','Microsoft YaHei',sans-serif;
  font-size:18px;
  letter-spacing:.05em;
  color:var(--mint);
  margin-bottom:8px;
}

footer dd{
  margin:0 0 4px;
  font-size:16px;
  color:rgba(180,253,225,.86);
  line-height:1.6;
}

footer a{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:4px 0;
  color:var(--mint);
  text-decoration:none;
  border-bottom:2px solid transparent;
  transition:border-color .18s ease-out, transform .18s var(--bounce);
}

footer a:hover,
footer a:focus-visible{
  border-bottom-color:var(--sky);
  transform:translateY(-1px);
}

.foot-desc{max-width:34ch}

.foot-host{
  font-family:'Epilogue',ui-monospace,monospace;
  letter-spacing:.04em;
}

.foot-bar{
  max-width:1180px;
  margin:24px auto 0;
  padding-top:14px;
  border-top:3px dashed var(--line-soft);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  font-size:15px;
  color:rgba(180,253,225,.75);
}

.foot-bar p{margin:0}

/* ---------- 断点 ---------- */
@media (min-width:1000px){
  main{grid-template-columns:minmax(0,1fr) 272px}
  .hero{grid-column:1 / -1}
  .rail-wrap{
    grid-column:2;
    grid-row:2 / span 60;
    align-self:start;
    position:sticky;
    top:82px;
  }
}

@media (max-width:860px){
  .top{padding:12px 14px 10px}
  .top-in{
    grid-template-columns:1fr;
    justify-items:center;
    gap:8px;
  }
  .nav,
  .nav-b{justify-content:center}
  .top-b{justify-self:center;justify-content:center}
  .find input{width:110px}
  .hero{
    grid-template-columns:1fr;
    min-height:0;
    gap:20px;
    padding-top:2px;
  }
  .hero-copy{text-align:left;order:-1}
  .hero-art{aspect-ratio:16 / 11;max-height:none}
  h1{font-size:clamp(29px,8.8vw,44px);text-shadow:3px 3px 0 rgba(0,0,0,.38)}
  .hero-kick{letter-spacing:.22em}
  main{padding:18px 14px 48px;gap:20px}
  main > div:not(.hero):not(.rail-wrap){padding:22px 16px 32px}
  .subbar{padding:6px 12px}
  .foot-grid{grid-template-columns:1fr;gap:18px}
  footer{padding:28px 14px 18px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,
  *::before,
  *::after{
    transition-duration:.01ms !important;
    animation-duration:.01ms !important;
  }
  .hero-art{transform:none !important}
}

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