:root{
  --paper:#fafaf8;
  --ink:#1a1a1a;
  --gray:#4a4a4a;
  --rule:rgba(26,26,26,.32);
  --wash:rgba(26,26,26,.05);
  --body:'Cabin','PingFang SC','Hiragino Sans GB','Microsoft YaHei',system-ui,sans-serif;
  --hand:'Amatic SC','Cabin','PingFang SC','Hiragino Sans GB','Microsoft YaHei',system-ui,sans-serif;
  --edge:clamp(16px,4.2vw,34px);
  --bar:52px;
}
*,*::before,*::after{box-sizing:border-box}
html{background:var(--paper);scroll-behavior:smooth;overflow-x:hidden}
body{
  margin:0;
  color:var(--ink);
  font-family:var(--body);
  font-size:17px;
  line-height:1.75;
  background-color:var(--paper);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='0.16'/%3E%3C/svg%3E");
  background-size:140px 140px;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:var(--hand);font-weight:700;line-height:1.12;letter-spacing:.03em;margin:0 0 10px}
p{margin:0 0 14px}
a{color:var(--ink);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px}
a:hover{text-decoration-style:wavy;text-decoration-thickness:2px}
hr{border:0;border-top:2px dashed var(--rule);margin:12px 0 20px;transform:rotate(-.35deg)}
img{max-width:100%;height:auto;border:2px solid var(--ink);filter:grayscale(.2) contrast(1.05)}
ul,ol{padding-left:22px;margin:0 0 16px}
li{margin:5px 0}
strong{background:linear-gradient(transparent 62%,rgba(26,26,26,.14) 0)}
blockquote{margin:20px 0;padding:12px 18px;border-left:5px solid var(--ink);background:var(--wash);transform:rotate(-.4deg)}
blockquote p:last-child{margin:0}
:focus-visible{outline:3px solid var(--ink);outline-offset:2px}

/* 页头 */
.mast{border-bottom:3px solid var(--ink)}
.mast-in{padding:clamp(14px,3vw,22px) var(--edge) 12px}
.mast-brand{padding-bottom:10px}
.brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none;font-family:var(--hand);font-size:clamp(27px,4.6vw,40px);letter-spacing:.06em;line-height:1.1}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;flex:0 0 auto;border:2px solid var(--ink);background:var(--paper);font-family:var(--body);font-size:20px;font-weight:700;transform:rotate(-3.5deg)}
.brand:hover .brand-mark{transform:rotate(2deg) translateY(-2px)}
.mast-tag{margin:8px 0 0;color:var(--gray);font-size:16px;max-width:46em}
.mast-bar{display:flex;flex-wrap:wrap;align-items:flex-start;gap:10px;padding-top:10px;border-top:2px dashed var(--rule)}
.menu-nav{display:flex;flex-wrap:wrap;align-items:flex-start;gap:8px}
.fold{position:relative}
.fold>summary{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:8px 14px;border:2px solid var(--ink);background:var(--paper);cursor:pointer;list-style:none;font-size:16px;letter-spacing:.1em}
.fold>summary::-webkit-details-marker{display:none}
.fold>summary::after{content:"+";font-family:var(--hand);font-size:22px;line-height:1}
.fold>summary:hover,.fold[open]>summary{background:var(--ink);color:var(--paper)}
.fold[open]>summary::after{content:"–"}
.fold>menu{position:absolute;top:calc(100% + 6px);left:0;z-index:60;margin:0;padding:8px;min-width:214px;list-style:none;background:var(--paper);border:2px solid var(--ink)}
.fold>menu li{margin:0}
.fold>menu a{display:flex;align-items:center;min-height:42px;padding:6px 10px;font-size:16px;text-decoration:none;border-bottom:2px dashed var(--rule)}
.fold>menu li:last-child a{border-bottom:0}
.fold>menu a:hover{background:var(--ink);color:var(--paper)}
.mast-contact{display:inline-flex;align-items:center;min-height:44px;padding:8px 14px;margin-left:auto;border:2px dashed var(--ink);font-size:16px;text-decoration:none}
.mast-contact:hover{background:var(--ink);color:var(--paper)}

/* 粘性锚点条 */
.anchorbar{position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:8px;padding:6px var(--edge);background:var(--paper);border-top:2px solid var(--ink);border-bottom:2px dashed var(--rule);overflow-x:auto}
.anchorbar-label{flex:0 0 auto;padding-right:10px;border-right:2px solid var(--rule);color:var(--gray);font-size:16px;letter-spacing:.16em}
.chip{flex:0 0 auto;display:inline-flex;align-items:center;min-height:42px;padding:4px 12px;border:2px solid var(--ink);background:var(--paper);font-size:16px;text-decoration:none;transition:background-color .1s linear,color .1s linear}
.chip:hover{background:var(--ink);color:var(--paper);transform:rotate(-1.6deg)}

/* 主体 */
main{max-width:1120px;margin:0 auto;padding:0 var(--edge) clamp(30px,6vw,60px);display:grid;grid-template-columns:minmax(0,1fr) 274px;gap:clamp(26px,4vw,46px);align-items:start}
article{min-width:0}

.hero{position:relative;overflow:hidden;min-height:70vh;padding:clamp(26px,6vw,54px) 0 28px;display:flex;flex-direction:column;justify-content:flex-start}
.hero-index{position:absolute;right:-12px;bottom:-26px;z-index:0;font-family:var(--hand);font-size:clamp(140px,30vw,296px);line-height:.78;letter-spacing:-.05em;color:rgba(26,26,26,.09);pointer-events:none}
.eyebrow{position:relative;z-index:1;align-self:flex-start;margin:0 0 16px;padding:4px 12px;border:2px solid var(--ink);font-size:16px;letter-spacing:.2em;transform:rotate(-1.3deg)}
.hero h1{position:relative;z-index:1;margin:0 0 16px;max-width:16ch;font-size:clamp(42px,9vw,84px);line-height:1.04;letter-spacing:.02em}
.hero-lead{position:relative;z-index:1;max-width:34em;margin:0;color:var(--gray);font-size:19px}

.verdict{margin-top:clamp(24px,5vw,40px);padding:16px 20px 8px;border:2px dashed var(--ink);background:var(--wash);transform:rotate(-.5deg)}
.verdict h2{font-size:clamp(24px,3.6vw,30px)}

article>section[id]{position:relative;margin-top:clamp(26px,5vw,42px);padding-top:clamp(20px,4vw,32px);border-top:2px dashed var(--rule);scroll-margin-top:calc(var(--bar) + 20px)}
article>section[id]::before{content:"";position:absolute;top:-6px;left:0;width:46px;height:9px;background:var(--ink)}
div h2{font-size:clamp(26px,4.2vw,36px);margin:6px 0 8px}
div h3{font-size:21px;margin:22px 0 6px}
div h4{font-size:18px;font-family:var(--body);font-weight:600;letter-spacing:0;margin:18px 0 6px}

/* 侧栏 */
.rail{position:sticky;top:calc(var(--bar) + 20px);align-self:start;margin-top:clamp(22px,5vw,40px);padding:16px 16px 18px;border:2px solid var(--ink);background:var(--paper);transform:rotate(.7deg)}
.rail h2{font-size:26px;margin:0 0 4px}
.rail p{font-size:16px}
.rail ol{padding-left:18px}
.rail a{font-size:16px}
.rail-note{margin:12px 0 0;padding-top:10px;border-top:2px dashed var(--rule);color:var(--gray)}

/* 页脚 */
footer{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:8px 32px;align-items:start;margin-top:clamp(30px,6vw,56px);padding:clamp(22px,5vw,36px) var(--edge) 26px;border-top:4px solid var(--ink)}
.foot-brand{margin:0;font-family:var(--hand);font-size:clamp(36px,10vw,74px);line-height:.95;letter-spacing:.05em}
.foot-links{display:flex;flex-wrap:wrap;gap:2px 16px;margin:0;font-size:16px}
.foot-links a{display:inline-flex;align-items:center;min-height:40px;padding:0 2px}
footer small{grid-column:1 / -1;display:block;margin-top:8px;color:var(--gray);font-size:16px}

@media (max-width:880px){
  main{grid-template-columns:minmax(0,1fr)}
  .rail{position:static;order:2;margin-top:8px;transform:rotate(-.4deg)}
  footer{grid-template-columns:minmax(0,1fr)}
  .mast-contact{margin-left:0}
}
@media (max-width:560px){
  .hero{min-height:auto;padding-bottom:20px}
  .hero-index{font-size:clamp(120px,44vw,190px);bottom:-14px}
  .fold>menu{position:static;margin-top:6px;min-width:0}
  .anchorbar-label{display:none}
  .verdict{transform:none}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none!important;animation:none!important}
  .rail,.verdict,.eyebrow,.chip:hover,.brand:hover .brand-mark{transform:none}
}

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