@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{
  --paper:#ffffff;
  --stone:#f5f5f5;
  --ink:#1f1f1f;
  --brass:#a9834a;
  --line:#e4e1db;
  --mute:#4a4640;
  --shadow:0 4px 6px rgba(0,0,0,.05);
}

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

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

body{
  margin:0;
  background:var(--stone);
  color:var(--ink);
  font-family:"Crimson Pro",Georgia,"Songti SC",serif;
  font-size:17px;
  line-height:1.72;
  letter-spacing:.005em;
  overflow-x:hidden;
}

img{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3{font-family:"Cormorant Garamond",Georgia,serif;font-weight:500;letter-spacing:.012em}

/* 页头 */
.site-head{
  position:sticky;
  top:0;
  z-index:40;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.brandline{
  display:flex;
  align-items:center;
  gap:12px;
  padding:8px clamp(14px,4vw,40px) 0;
}
.mark{
  width:40px;
  height:40px;
  min-height:40px;
  flex:0 0 auto;
  display:grid;
  place-items:center;
  border:1px solid var(--brass);
  border-radius:4px;
  text-decoration:none;
}
.mark i{
  width:10px;height:10px;border-radius:50%;
  background:var(--brass);
  display:block;
}
.word{
  font-family:"Cormorant Garamond",Georgia,serif;
  font-size:20px;
  letter-spacing:.09em;
  text-decoration:none;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 2px;
}
.jump{overflow-x:auto;scrollbar-width:none}
.jump::-webkit-scrollbar{display:none}
.jump p{
  display:flex;
  gap:2px;
  margin:0;
  padding:0 clamp(10px,4vw,36px) 4px;
}
.jump a{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:10px 12px;
  font-size:16px;
  line-height:1.4;
  color:var(--mute);
  text-decoration:none;
  white-space:nowrap;
  border-bottom:2px solid transparent;
  transition:color .2s ease,border-color .2s ease;
}
.jump a:hover,
.jump a:focus-visible,
.jump a.on{
  color:var(--ink);
  border-bottom-color:var(--brass);
}

/* 首屏 */
.hero{
  min-height:100vh;
  display:grid;
  grid-template-columns:1.04fr .96fr;
  gap:clamp(14px,2.4vw,28px);
  padding:clamp(16px,3vw,40px);
  align-items:stretch;
}
.hero-fig{
  margin:0;
  background:#e8e5df;
  border-radius:4px;
  overflow:hidden;
  min-height:46vh;
}
.hero-fig img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .6s cubic-bezier(.2,.7,.2,1);
}
.hero-fig:hover img{transform:scale(1.02)}
.hero-copy{
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:flex-end;
  text-align:right;
  gap:16px;
}
.hero-copy h1{
  margin:0;
  font-size:clamp(36px,6.2vw,76px);
  line-height:1.06;
  font-weight:500;
}
.hero-brand{
  margin:0;
  font-family:"Cormorant Garamond",Georgia,serif;
  font-size:18px;
  letter-spacing:.34em;
  color:var(--brass);
}

/* 正文区：左栏 + 卡片网格 */
.doc{
  display:grid;
  grid-template-columns:220px minmax(0,1fr);
  gap:clamp(16px,2.4vw,28px);
  padding:clamp(20px,3vw,40px) clamp(16px,3vw,40px) clamp(44px,6vw,84px);
  align-items:start;
}
.rail{
  position:sticky;
  top:126px;
  background:var(--paper);
  border-radius:4px;
  padding:18px 16px;
  box-shadow:var(--shadow);
}
.rail-t{
  margin:0 0 12px;
  font-size:21px;
  line-height:1.2;
}
.rail-t span{
  display:inline-block;
  padding-bottom:5px;
  border-bottom:2px solid var(--brass);
}
.rail-links{
  margin:0;
  display:flex;
  flex-direction:column;
}
.rail-links a{
  display:flex;
  align-items:center;
  min-height:42px;
  padding:8px 2px;
  font-size:16px;
  line-height:1.4;
  color:var(--mute);
  text-decoration:none;
  border-bottom:1px solid var(--line);
  transition:color .2s ease;
}
.rail-links a:last-child{border-bottom:0}
.rail-links a:hover{color:var(--brass)}

.content{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
  min-width:0;
}
.content > article{
  background:var(--paper);
  border-radius:4px;
  padding:clamp(20px,2.6vw,36px);
  box-shadow:var(--shadow);
  scroll-margin-top:136px;
  min-width:0;
  transition:box-shadow .28s ease;
}
.content > article:nth-child(3n+1){grid-column:1/-1}
.content > article:hover{box-shadow:0 8px 22px rgba(0,0,0,.07)}

.content h2{
  margin:0 0 14px;
  font-size:clamp(25px,3.2vw,36px);
  line-height:1.22;
}
.content h2 > span{
  display:inline-block;
  padding-bottom:6px;
  border-bottom:2px solid var(--brass);
}
.content h3{
  margin:22px 0 8px;
  font-size:22px;
  line-height:1.3;
}
.content p{margin:0 0 14px}
.content p:last-child{margin-bottom:0}
.content ul,
.content ol{margin:0 0 14px;padding-left:1.2em}
.content li{margin:0 0 6px}
.content figure{margin:18px 0}
.content figure img{border-radius:4px}
.content figcaption{
  font-size:16px;
  color:#6d675e;
  margin-top:8px;
}
.content aside{
  background:var(--stone);
  border-left:3px solid var(--brass);
  border-radius:4px;
  padding:14px 18px;
  margin:18px 0;
  font-size:16px;
}
.content time{
  font-size:16px;
  color:#6d675e;
}
.content a{
  color:#7a5c2e;
  text-underline-offset:3px;
}
.content strong{font-weight:600}
.content blockquote{
  margin:18px 0;
  padding:2px 0 2px 18px;
  border-left:3px solid var(--line);
  font-style:italic;
  color:#3a3630;
}

/* 页脚 */
.site-foot{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px clamp(16px,4vw,40px);
  padding:clamp(28px,5vw,56px) clamp(16px,4vw,40px) clamp(20px,3vw,32px);
  background:var(--ink);
  color:#f5f5f5;
}
.ft-brand{
  margin:0;
  font-family:"Cormorant Garamond",Georgia,serif;
  font-size:26px;
  letter-spacing:.07em;
}
.ft-links{
  margin:0;
  display:flex;
  flex-wrap:wrap;
  gap:2px 4px;
  justify-content:flex-end;
  align-content:flex-start;
}
.ft-links a{
  display:inline-flex;
  align-items:center;
  min-height:42px;
  padding:6px 8px;
  font-size:16px;
  line-height:1.4;
  color:#e8e4dd;
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .2s ease,border-color .2s ease;
}
.ft-links a:hover{
  color:#e3c295;
  border-bottom-color:var(--brass);
}
.ft-copy,
.ft-top{
  margin:0;
  font-size:16px;
  line-height:1.5;
  color:#b9b3a8;
  align-self:center;
}
.ft-top{justify-self:end}
.ft-top a{
  display:inline-flex;
  align-items:center;
  min-height:42px;
  padding:6px 8px;
  color:#e8e4dd;
  text-decoration:none;
}

/* 进场动效 */
.js-anim [data-reveal],
.js-anim .content > article{
  opacity:0;
  transform:translateY(16px);
}
.js-anim .in{
  opacity:1;
  transform:none;
  transition:opacity .55s ease,transform .55s cubic-bezier(.2,.7,.2,1);
  transition-delay:calc(var(--i,0) * 55ms);
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js-anim [data-reveal],
  .js-anim .content > article{opacity:1;transform:none;transition:none}
  .hero-fig img{transition:none}
  .hero-fig:hover img{transform:none}
}

/* 平板 */
@media (max-width:900px){
  .hero{
    grid-template-columns:1fr;
    min-height:0;
    padding-top:18px;
  }
  .hero-copy{
    order:-1;
    align-items:flex-start;
    text-align:left;
    padding:4px 2px 6px;
  }
  .hero-copy h1{font-size:clamp(34px,9vw,54px)}
  .hero-fig{min-height:52vw}
  .doc{grid-template-columns:1fr}
  .rail{position:static;padding:14px}
  .rail-t{margin-bottom:8px;font-size:19px}
  .rail-links{
    flex-direction:row;
    flex-wrap:wrap;
    gap:0 10px;
    overflow-x:auto;
  }
  .rail-links a{
    min-height:42px;
    padding:8px 2px;
    border-bottom:0;
  }
  .content > article{scroll-margin-top:150px}
}

/* 手机 */
@media (max-width:680px){
  body{font-size:17px}
  .content{grid-template-columns:1fr}
  .content > article:nth-child(3n+1){grid-column:auto}
  .site-foot{grid-template-columns:1fr}
  .ft-links{justify-content:flex-start}
  .ft-top{justify-self:start}
  .content > article{padding:20px}
}

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