@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;500;600&family=Cormorant+Garamond:ital,wght@0,300;0,500;0,700;1,300;1,500&family=Crimson+Pro:ital,wght@0,300;0,400;0,600;1,300;1,400&display=swap');

:root{
  --ink:#000000;
  --paper:#ffffff;
  --display:'Cormorant Garamond','Cinzel','Songti SC','SimSun',Georgia,serif;
  --body:'Crimson Pro','Songti SC','SimSun',Georgia,serif;
  --rule:1px solid #000000;
  --hair:rgba(0,0,0,.16);
}

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

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

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--body);
  font-size:17px;
  line-height:1.72;
  font-weight:400;
  letter-spacing:.012em;
}

img{max-width:100%;display:block}
a{color:inherit}
hr{border:0}
:focus-visible{outline:2px solid #000;outline-offset:3px}

.shell{
  display:grid;
  grid-template-columns:clamp(214px,22vw,304px) minmax(0,1fr);
  align-items:start;
}

/* ---------- 左侧栏 / 导航 ---------- */

.rail{
  position:sticky;
  top:0;
  height:100vh;
  overflow:auto;
  display:flex;
  flex-direction:column;
  gap:14px;
  padding:26px 20px 32px;
  border-right:2px solid #000;
  background:var(--paper);
}

.brand{
  display:flex;
  align-items:center;
  border-bottom:3px solid #000;
  padding-bottom:14px;
}

.brand-link{
  display:inline-flex;
  align-items:center;
  gap:10px;
  min-height:40px;
  text-decoration:none;
}

.brand-name{
  font-family:var(--display);
  font-size:1.16rem;
  font-weight:600;
  letter-spacing:.24em;
  line-height:1.2;
}

.rail-title{
  margin:8px 0 0;
  font-family:var(--body);
  font-size:.72rem;
  font-weight:600;
  letter-spacing:.44em;
  text-transform:uppercase;
}

.rail hr{
  margin:0;
  border-top:2px solid #000;
}

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

.menu li.is-out{display:none}

.pill{
  display:flex;
  align-items:center;
  min-height:42px;
  padding:8px 16px;
  border:1px solid #000;
  border-radius:999px;
  text-decoration:none;
  font-size:.95rem;
  letter-spacing:.06em;
  transition:background .22s ease,color .22s ease,transform .22s ease;
}

.pill:hover,
.pill:focus-visible{
  background:#000;
  color:#fff;
}

.search{display:flex}

.search input{
  width:100%;
  min-height:42px;
  padding:8px 16px;
  border:1px solid #000;
  border-radius:999px;
  background:transparent;
  color:#000;
  font-family:var(--body);
  font-size:.95rem;
}

.search input::placeholder{
  color:#000;
  opacity:.55;
  letter-spacing:.14em;
}

/* ---------- 主体 ---------- */

main{
  min-width:0;
  max-width:1180px;
  padding:clamp(22px,4vw,54px) clamp(20px,4vw,64px) clamp(44px,6vw,84px);
}

main > article{scroll-margin-top:1.8rem}

.hero{
  display:grid;
  gap:clamp(18px,3vw,34px);
  min-height:70vh;
  align-content:start;
  padding-bottom:clamp(20px,3vw,34px);
  border-bottom:3px solid #000;
}

.hero h1{
  margin:0 0 .5em;
  max-width:16ch;
  font-family:var(--display);
  font-size:clamp(2.05rem,6.2vw,4.7rem);
  font-weight:500;
  line-height:1.05;
  letter-spacing:-.012em;
}

.lede{
  margin:0;
  max-width:44ch;
  font-size:clamp(1.05rem,1.5vw,1.28rem);
  line-height:1.62;
}

.lede::first-letter{
  float:left;
  font-family:var(--display);
  font-size:3.6em;
  font-weight:700;
  line-height:.78;
  padding:.06em .12em 0 0;
}

.hero-fig{
  position:relative;
  margin:0;
  overflow:hidden;
  border:1px solid #000;
  border-radius:4px;
  background:#000;
}

.hero-fig img{
  width:100%;
  height:clamp(220px,38vh,440px);
  object-fit:cover;
  transform:scale(1.06);
  will-change:transform;
}

.badge{
  position:absolute;
  left:14px;
  bottom:14px;
  margin:0;
  padding:8px 14px;
  border-radius:4px;
  background:#000;
  color:#fff;
  font-size:.76rem;
  letter-spacing:.26em;
}

/* ---------- 正文 ---------- */

main > article[id]{
  max-width:70ch;
  padding:clamp(30px,4vw,56px) 0;
  border-bottom:var(--rule);
}

main > article[id]:last-child{border-bottom:0}

main h2{
  margin:0 0 .5rem;
  font-family:var(--display);
  font-size:clamp(1.6rem,3.4vw,2.4rem);
  font-weight:500;
  line-height:1.16;
}

main > article[id] h2:first-child{margin-top:0}

main h2 + hr,
main h3 + hr{
  margin:0 0 1.25rem;
  max-width:130px;
  border-top:2px solid #000;
}

main h3{
  margin:1.9rem 0 .5rem;
  font-family:var(--display);
  font-size:1.28rem;
  font-weight:600;
  line-height:1.25;
}

main p{margin:0 0 1.05em}
main ul,
main ol{margin:0 0 1.2em;padding-left:1.25rem}
main li{margin:.4em 0}
main strong{font-weight:600}

main blockquote{
  margin:1.8rem 0;
  padding:.2rem 0 .2rem 1.2rem;
  border-left:4px solid #000;
  font-family:var(--display);
  font-size:clamp(1.24rem,2.2vw,1.6rem);
  font-style:italic;
  line-height:1.38;
}

main a{
  text-decoration:underline;
  text-underline-offset:.2em;
  text-decoration-thickness:1px;
}

main figure{margin:1.6rem 0}
main figcaption{margin-top:.5rem;font-size:.85rem;letter-spacing:.1em}
main > article[id] img{border:1px solid #000;border-radius:4px}

main > article:nth-of-type(2) > p:first-of-type::first-letter{
  float:left;
  font-family:var(--display);
  font-size:3.3em;
  font-weight:700;
  line-height:.8;
  padding:.06em .1em 0 0;
}

/* ---------- 页脚 ---------- */

.foot{
  display:grid;
  gap:clamp(24px,4vw,46px);
  padding:clamp(32px,5vw,62px) clamp(20px,4vw,64px) 22px;
  border-top:4px solid #000;
}

.foot-grid{
  display:grid;
  grid-template-columns:1.7fr 1fr 1fr 1fr;
  gap:clamp(16px,3vw,34px);
}

.foot-grid p{margin:0 0 .35rem}

.foot-grid a{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  text-decoration:none;
  border-bottom:1px solid transparent;
}

.foot-grid a:hover{border-bottom-color:#000}

.cta-brand{
  font-family:var(--display);
  font-size:clamp(1.7rem,4.4vw,3.2rem);
  line-height:1.02;
  letter-spacing:.02em;
  margin:0 0 .5rem;
}

.foot-base{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding-top:14px;
  border-top:1px solid #000;
}

.foot-base p{
  margin:0;
  font-size:.9rem;
  letter-spacing:.08em;
}

.foot-base small{font-size:.9rem}

.foot-base a{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  text-decoration:none;
  border-bottom:1px solid #000;
}

/* ---------- 动效 ---------- */

.reveal{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .7s ease,transform .7s ease;
}

.reveal.in{
  opacity:1;
  transform:none;
}

/* ---------- 响应式 ---------- */

@media (max-width:860px){
  .shell{grid-template-columns:1fr}
  .rail{
    position:static;
    height:auto;
    border-right:0;
    border-bottom:3px solid #000;
    padding:18px 18px 22px;
  }
  .menu ul{flex-direction:row;flex-wrap:wrap}
  .pill{font-size:.88rem;padding:6px 14px}
  main{padding:22px 18px 48px}
  main > article{scroll-margin-top:1rem}
  .hero{min-height:auto}
  .foot-grid{grid-template-columns:1fr 1fr}
}

@media (max-width:520px){
  .foot-grid{grid-template-columns:1fr}
  .lede::first-letter{font-size:3.1em}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .hero-fig img{transform:none}
}

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