@import url('https://fonts.googleapis.com/css2?family=Figtree:wght@300;400;500;600;700&family=Noto+Sans:wght@300;400;500;700&display=swap');

:root{
  --paper:#fafaf8;
  --ink:#1a1a1a;
  --gray:#4a4a4a;
  --rule:rgba(26,26,26,.42);
  --soft:rgba(26,26,26,.07);
  --font:"Figtree","Noto Sans",system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  --wrap:1080px;
  --radius:10px;
}

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

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

body{
  margin:0;
  padding-bottom:170px;
  font-family:var(--font);
  font-size:17px;
  line-height:1.68;
  color:var(--ink);
  background-color:var(--paper);
  background-image:
    repeating-linear-gradient(0deg,rgba(26,26,26,.022) 0 1px,transparent 1px 4px),
    radial-gradient(circle at 18% 12%,rgba(74,74,74,.06),transparent 46%);
  overflow-x:hidden;
  max-width:100%;
}

a{color:inherit}

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

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

.grain{
  position:fixed;
  inset:0;
  z-index:2;
  pointer-events:none;
  opacity:.55;
  mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)' opacity='0.22'/%3E%3C/svg%3E");
}

/* 底部固定条 */
.dock{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:5;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px 14px;
  padding:8px 14px calc(8px + env(safe-area-inset-bottom));
  background:var(--paper);
  border-top:2px solid var(--ink);
  max-width:100vw;
}

.dock-brand{
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:44px;
  padding:2px 2px;
  font-weight:700;
  letter-spacing:.04em;
  text-decoration:none;
  border-bottom:2px solid var(--ink);
  transform:rotate(-1.2deg);
}

.dock-brand .mark{
  display:block;
  width:34px;height:34px;
  object-fit:cover;
  border:2px solid var(--ink);
  border-radius:6px;
  filter:grayscale(.2) contrast(1.05);
}

.dock-nav{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  flex:1 1 auto;
  min-width:0;
}

.dock-nav a{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:8px 9px;
  font-size:16px;
  color:var(--gray);
  text-decoration:none;
  border-bottom:2px solid transparent;
}

.dock-nav a:hover,
.dock-nav a:focus-visible{
  color:var(--ink);
  border-bottom-color:var(--ink);
  background:var(--soft);
}

.dock-nav a.on{
  color:var(--paper);
  background:var(--ink);
  border-bottom-color:var(--ink);
}

.dock-search{
  display:flex;
  align-items:center;
  gap:6px;
  flex:0 0 auto;
  min-width:0;
}

.dock-search input,
.foot-form input{
  font-family:inherit;
  font-size:16px;
  color:var(--ink);
  background:#fff;
  border:2px solid var(--ink);
  border-radius:var(--radius);
  padding:8px 10px;
  min-height:40px;
  width:120px;
  max-width:34vw;
  min-width:0;
}

.dock-search input::placeholder,
.foot-form input::placeholder{color:var(--gray)}

.dock-search button,
.foot-form button{
  font-family:inherit;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  background:var(--paper);
  border:2px solid var(--ink);
  border-radius:var(--radius);
  padding:8px 12px;
  min-height:40px;
  cursor:pointer;
  transform:rotate(-1deg);
}

.dock-search button:hover,
.foot-form button:hover{background:var(--ink);color:var(--paper)}

/* 版面 */
main{
  display:grid;
  grid-template-columns:minmax(0,1fr) 236px;
  gap:26px;
  max-width:var(--wrap);
  width:100%;
  margin:0 auto;
  padding:22px 16px 20px;
  align-items:start;
}

.paper{
  min-width:0;
  background:#fff;
  border:2px solid var(--ink);
  border-radius:var(--radius);
  overflow:hidden;
  transform:rotate(-.18deg);
}

/* 首屏 */
.hero{
  position:relative;
  display:flex;
  flex-direction:column;
  align-items:flex-end;
  gap:12px;
  text-align:right;
  padding:30px 18px 0;
  min-height:min(45vh,400px);
  border-bottom:2px solid var(--ink);
  background:
    repeating-linear-gradient(90deg,rgba(26,26,26,.03) 0 1px,transparent 1px 7px);
}

.hero h1{
  margin:0;
  padding-left:44px;
  font-size:clamp(29px,6.4vw,50px);
  line-height:1.06;
  letter-spacing:-.02em;
  font-weight:700;
  text-transform:none;
  max-width:100%;
  overflow-wrap:break-word;
}

.hero-desc{
  margin:0;
  max-width:44ch;
  font-size:16px;
  color:var(--gray);
}

.stamp{
  position:absolute;
  top:16px;left:14px;
  display:inline-block;
  padding:4px 10px;
  font-size:15px;
  font-weight:600;
  letter-spacing:.1em;
  border:2px dashed var(--ink);
  border-radius:var(--radius);
  transform:rotate(-7deg);
  background:var(--paper);
}

.hero-figure{
  margin:10px 0 0;
  width:100%;
}

.hero-art{
  display:block;
  width:100%;
  height:auto;
  border-top:2px solid var(--ink);
  border-bottom:2px solid var(--ink);
  filter:grayscale(.18) contrast(1.06);
}

/* 正文 */
.content{
  padding:22px 18px 30px;
  min-width:0;
  overflow-wrap:break-word;
  word-break:break-word;
}

.content > div{
  margin-top:26px;
  padding-top:22px;
  border-top:1px dashed var(--rule);
  scroll-margin-top:20px;
}

.content > div:first-of-type{
  margin-top:0;
  padding-top:0;
  border-top:0;
}

.content h2,
.content h3,
.side h3{
  margin:0 0 12px;
  line-height:1.25;
  letter-spacing:-.01em;
  font-weight:700;
}

.content h2{
  font-size:24px;
  padding-bottom:8px;
  border-bottom:2px solid var(--ink);
}

.content h3{font-size:19px}
.content h4{font-size:17px;margin:18px 0 8px}

.content p{margin:0 0 14px}
.content p:last-child{margin-bottom:0}

.content ul,
.content ol{
  margin:0 0 16px;
  padding-left:22px;
}

.content li{margin-bottom:8px}
.content li::marker{color:var(--gray)}

.content strong{font-weight:700}
.content em{font-style:italic;color:var(--gray)}

.content a{
  color:var(--ink);
  text-decoration:none;
  border-bottom:1px solid var(--rule);
}

.content a:hover{border-bottom-color:var(--ink)}

.content pre,
.content table{
  max-width:100%;
  overflow-x:auto;
  display:block;
}

.content blockquote{
  margin:0 0 16px;
  padding:10px 14px;
  border-left:4px solid var(--ink);
  background:var(--soft);
  color:var(--gray);
}

.kicker{
  display:inline-block;
  margin-bottom:8px;
  padding-bottom:3px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.2em;
  color:var(--gray);
  border-bottom:2px solid var(--ink);
}

/* 侧栏 */
.side{
  min-width:0;
  position:sticky;
  top:16px;
  padding:16px 14px 18px;
  background:#fff;
  border:2px solid var(--ink);
  border-radius:var(--radius);
  transform:rotate(.5deg);
}

.side h3{font-size:18px}

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

.side-list a{
  display:flex;
  align-items:center;
  min-height:40px;
  padding:6px 2px;
  font-size:16px;
  color:var(--gray);
  text-decoration:none;
  border-bottom:1px dashed var(--rule);
}

.side-list li:last-child a{border-bottom:0}
.side-list a:hover{color:var(--ink);background:var(--soft)}

/* 页脚 */
.foot{
  max-width:var(--wrap);
  width:100%;
  margin:6px auto 0;
  padding:26px 16px 34px;
  border-top:2px solid var(--ink);
}

.foot-head{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-bottom:18px;
  border-bottom:2px dashed var(--rule);
}

.foot-brand{
  margin:0;
  font-size:20px;
  font-weight:700;
  letter-spacing:.04em;
  transform:rotate(-1deg);
}

.foot-form{
  display:flex;
  align-items:center;
  gap:6px;
  min-width:0;
}

.foot-form input{width:150px;max-width:44vw}

.foot-nav{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:16px;
  padding:20px 0 14px;
}

.foot-col{
  margin:0;
  min-width:0;
}

.foot-col dt{
  margin-bottom:6px;
  font-size:13px;
  font-weight:700;
  letter-spacing:.16em;
  color:var(--gray);
}

.foot-col dd{
  margin:0;
}

.foot-col dd a{
  display:flex;
  align-items:center;
  min-height:40px;
  padding:4px 0;
  font-size:16px;
  color:var(--gray);
  text-decoration:none;
  border-bottom:1px dashed var(--rule);
}

.foot-col dd:last-child a{border-bottom:0}
.foot-col dd a:hover{color:var(--ink)}

.foot-copy{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  margin:0;
  padding-top:14px;
  border-top:2px solid var(--ink);
  font-size:15px;
  color:var(--gray);
}

.foot-copy a{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:4px 2px;
  color:var(--ink);
  text-decoration:none;
  border-bottom:2px solid var(--ink);
}

/* 滚动出现 */
.js [data-reveal]{
  opacity:0;
  transform:translateY(10px) rotate(.3deg);
}

.js [data-reveal].in{
  opacity:1;
  transform:none;
  transition:
    opacity .34s steps(4,end) var(--d,0ms),
    transform .34s steps(4,end) var(--d,0ms);
}

@media (max-width:860px){
  main{
    grid-template-columns:minmax(0,1fr);
    gap:18px;
    padding:16px 12px 18px;
  }

  .side{position:static}

  .hero{min-height:0;padding-top:26px}

  body{padding-bottom:200px}

  /* 窄屏取消全部旋转，避免横向溢出 */
  .paper,
  .side,
  .js [data-reveal],
  .js [data-reveal].in{
    transform:none;
  }
}

@media (max-width:720px){
  .dock{gap:6px 10px;padding-left:10px;padding-right:10px}

  .dock-brand{font-size:16px}

  .dock-nav{
    order:3;
    width:100%;
    flex-wrap:nowrap;
    overflow-x:auto;
    -webkit-overflow-scrolling:touch;
    border-top:1px dashed var(--rule);
    padding-top:2px;
  }

  .dock-nav a{white-space:nowrap;padding:8px 10px}

  .dock-search{margin-left:auto}
  .dock-search input{width:96px;max-width:30vw}
  .dock-search button{padding:8px 10px}

  .hero{padding-left:14px;padding-right:14px}
  .hero h1{padding-left:0;font-size:clamp(26px,8.4vw,34px)}
  .stamp{position:static;align-self:flex-end;transform:rotate(3deg);order:-1}

  .content{padding:18px 14px 24px}
  .foot{padding:22px 12px 30px}
  .foot-form input{width:120px;max-width:44vw}
  .foot-nav{gap:12px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation:none!important;
    transition:none!important;
  }
  .js [data-reveal]{opacity:1;transform:none}
}

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