/* ==========================================================================
   try this, that. — 样式表
   配色沿用原站：米白纸感 + 墨色 + 丁香紫 / 苔绿 / 陶橙
   ========================================================================== */

:root{
  color-scheme: light;
  --paper:#f5f4ee; --paper-2:#efece2; --paper-3:#e7e4d8;
  --ink:#242424; --ink-2:#6b6d66; --ink-3:#94968d;
  --line:#dcdcd4; --line-2:#c9c9be;
  --accent:#c8b8ec; --green:#b6c3a4; --orange:#ed865c;
  --measure:68ch;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
  --serif:Georgia,"Songti SC","Times New Roman",serif;
}

:root[data-theme="dark"]{
  color-scheme: dark;
  --paper:#181714; --paper-2:#201f1b; --paper-3:#282720;
  --ink:#eae7dd; --ink-2:#a6a49a; --ink-3:#7c7a70;
  --line:#312f29; --line-2:#3d3b33;
  --accent:#b9a6e6; --green:#9dae88; --orange:#e07a4e;
}

*,*::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(--sans);font-size:17px;line-height:1.78;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
:focus-visible{outline:2px solid var(--orange);outline-offset:3px;border-radius:2px}

.wrap{max-width:1080px;margin:0 auto;padding:0 28px}
.prose{max-width:var(--measure)}

.skip-link{position:absolute;left:-9999px}
.skip-link:focus{left:12px;top:12px;z-index:99;background:var(--ink);color:var(--paper);padding:10px 16px;border-radius:8px}

/* ---------- 页头 ---------- */
.site-header{border-bottom:1px solid var(--line);position:relative;z-index:5}
.header-inner{height:88px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;letter-spacing:-.5px;white-space:nowrap}
.brand:hover{text-decoration:none}
.brand-mark{
  display:inline-grid;place-items:center;width:28px;height:28px;border-radius:50%;
  background:var(--ink);color:var(--paper);font-size:15px;line-height:1;flex:none;
}
.nav{display:flex;align-items:center;gap:4px;font-family:var(--mono);font-size:12px;letter-spacing:.06em}
.nav a{padding:8px 12px;border-radius:8px;color:var(--ink-2)}
.nav a:hover{background:var(--paper-2);color:var(--ink);text-decoration:none}
.nav a[aria-current="page"]{color:var(--ink);background:var(--paper-2)}
.theme-toggle{
  margin-left:6px;width:34px;height:34px;border:1px solid var(--line);border-radius:50%;
  background:transparent;cursor:pointer;display:grid;place-items:center;color:var(--ink-2);
}
.theme-toggle:hover{border-color:var(--line-2);color:var(--ink)}
.theme-icon{width:13px;height:13px;border-radius:50%;background:currentColor;
  box-shadow:inset -4px -3px 0 0 var(--paper);transition:box-shadow .2s,transform .2s}
:root[data-theme="dark"] .theme-icon{box-shadow:inset 0 0 0 0 var(--paper);transform:scale(.72)}

/* ---------- 首页：引子 ---------- */
.intro{padding:76px 28px 54px;position:relative}
.eyebrow{
  margin:0 0 22px;font-family:var(--mono);font-size:11px;letter-spacing:.16em;
  color:var(--ink-3);text-transform:uppercase;display:flex;align-items:center;gap:12px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--line-2);flex:none}
.eyebrow a{color:var(--ink-3)}
.intro-title{
  margin:0 0 18px;font-size:clamp(40px,6.4vw,74px);line-height:1.06;font-weight:600;
  letter-spacing:-.035em;max-width:20ch;
}
.intro-lede{margin:0;font-size:19px;line-height:1.8;color:var(--ink-2);max-width:52ch}

/* 沿用原站的几何装饰 */
.shapes{display:flex;align-items:flex-end;gap:22px;margin-top:46px;height:64px}
.shape{display:block;flex:none}
.disc{width:56px;height:56px;border-radius:50%;background:var(--accent);box-shadow:inset -10px -10px 0 #00000008}
.block{width:44px;height:44px;background:var(--green);border-radius:10px;transform:rotate(-12deg);margin-bottom:4px}
.spark{width:36px;height:36px;background:var(--orange);margin-bottom:2px;
  clip-path:polygon(50% 0%,60% 28%,85% 15%,73% 40%,100% 50%,73% 60%,85% 85%,60% 73%,50% 100%,40% 73%,15% 85%,27% 60%,0% 50%,27% 40%,15% 15%,40% 28%)}
.small{width:12px;height:12px;border-radius:50%;background:var(--ink);margin-bottom:14px}

/* ---------- 首页：文章列表 ---------- */
.posts{padding:8px 28px 96px}
.section-label{
  display:flex;align-items:baseline;justify-content:space-between;gap:16px;
  margin:0 0 6px;padding-bottom:12px;border-bottom:1px solid var(--ink);
  font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;font-weight:400;
}
.section-label .count{color:var(--ink-3)}
.post-list{list-style:none;margin:0;padding:0}
.post-item{border-bottom:1px solid var(--line)}
.post-link{display:grid;grid-template-columns:112px 1fr;gap:28px;padding:26px 0;align-items:baseline}
.post-link:hover{text-decoration:none}
.post-link:hover .post-item-title{color:var(--orange)}
.post-item-date{font-family:var(--mono);font-size:12px;color:var(--ink-3);letter-spacing:.04em;padding-top:5px}
.post-item-title{margin:0 0 8px;font-size:23px;font-weight:600;letter-spacing:-.015em;line-height:1.35;transition:color .15s}
.post-item-summary{margin:0;color:var(--ink-2);font-size:15.5px;line-height:1.72;max-width:62ch}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0 0;padding:0;list-style:none}
.tag{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.06em;color:var(--ink-2);
  border:1px solid var(--line);border-radius:999px;padding:3px 9px;white-space:nowrap;
}
.empty{margin:34px 0 0;color:var(--ink-3);font-size:15px}
.empty[hidden]{display:none}
code{font-family:var(--mono);font-size:.88em;background:var(--paper-2);border:1px solid var(--line);border-radius:5px;padding:1px 5px}

/* ---------- 文章页 ---------- */
.post{padding:64px 28px 40px}
.post-header{margin-bottom:44px}
.post-title{margin:0 0 20px;font-size:clamp(31px,4.6vw,50px);line-height:1.16;font-weight:600;letter-spacing:-.028em;max-width:24ch}
.post-meta{margin:0;font-family:var(--mono);font-size:12px;color:var(--ink-3);letter-spacing:.04em;display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.post-meta .sep{color:var(--line-2)}
.post-meta .tags{margin:0;display:inline-flex}

/* 正文排版 */
.prose{font-size:17.5px;line-height:1.86}
.prose > * + *{margin-top:1.15em}
.prose h2{margin:2.2em 0 .6em;font-size:25px;font-weight:600;letter-spacing:-.015em;line-height:1.35}
.prose h3{margin:1.9em 0 .5em;font-size:20px;font-weight:600}
.prose h2::before{content:"";display:block;width:30px;height:2px;background:var(--orange);margin-bottom:14px}
.prose p{margin:0}
.prose a{border-bottom:1px solid var(--line-2);padding-bottom:1px}
.prose a:hover{text-decoration:none;border-bottom-color:var(--orange);color:var(--orange)}
.prose ul,.prose ol{padding-left:1.35em;margin:0}
.prose li + li{margin-top:.4em}
.prose li::marker{color:var(--ink-3)}
.prose blockquote{
  margin:1.6em 0;padding:2px 0 2px 20px;border-left:2px solid var(--accent);
  color:var(--ink-2);font-family:var(--serif);font-size:1.04em;
}
.prose blockquote p + p{margin-top:.7em}
.prose hr{border:0;border-top:1px solid var(--line);margin:2.6em 0}
.prose img{border-radius:10px;margin:1.6em 0}
.prose figure{margin:1.8em 0}
.prose figcaption{margin-top:10px;font-size:13px;color:var(--ink-3);font-family:var(--mono)}
.prose pre{
  background:var(--paper-2);border:1px solid var(--line);border-radius:10px;
  padding:16px 18px;overflow-x:auto;font-size:13.5px;line-height:1.65;margin:1.5em 0;
}
.prose pre code{background:none;border:0;padding:0;font-size:inherit}
.prose table{width:100%;border-collapse:collapse;font-size:15px;margin:1.6em 0}
.prose th,.prose td{border-bottom:1px solid var(--line);padding:10px 12px;text-align:left}
.prose th{font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);font-weight:400}
.prose > :first-child{margin-top:0}

/* 上下篇 */
.post-nav{margin-top:64px;padding-top:26px;border-top:1px solid var(--line);display:grid;gap:12px}
.post-nav a{display:block;color:var(--ink-2);font-size:15px}
.post-nav a:hover{color:var(--orange);text-decoration:none}
.post-nav .dir{font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--ink-3);margin-right:10px}

/* ---------- 静态页 ---------- */
.page{padding:64px 28px 80px}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--line);margin-top:40px}
.footer-inner{
  padding:26px 28px 34px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;color:var(--ink-3);
}
.footer-links{display:flex;gap:18px}
.footer-links a:hover{color:var(--ink);text-decoration:none}

/* ---------- 404 ---------- */
.center-page{min-height:calc(100vh - 220px);display:grid;place-items:center;text-align:center;padding:60px 28px}
.center-page .code{font-family:var(--mono);font-size:12px;letter-spacing:.2em;color:var(--ink-3)}
.center-page h1{margin:14px 0 18px;font-size:clamp(34px,6vw,58px);letter-spacing:-.03em;font-weight:600}
.center-page p{margin:0 auto 30px;color:var(--ink-2);max-width:44ch}
.btn{
  display:inline-block;border:1px solid var(--ink);background:var(--ink);color:var(--paper);
  padding:13px 24px;border-radius:999px;font-size:14px;transition:background .2s,transform .2s;
}
.btn:hover{background:var(--ink-2);border-color:var(--ink-2);text-decoration:none;transform:translateY(-1px)}

/* ---------- 响应式 ---------- */
@media (max-width:760px){
  body{font-size:16.5px}
  .wrap,.intro,.posts,.post,.page{padding-left:20px;padding-right:20px}
  .header-inner{height:70px}
  .brand{font-size:17px}
  .nav{font-size:11px;gap:0}
  .nav a{padding:7px 9px}
  .intro{padding-top:48px;padding-bottom:38px}
  .intro-lede{font-size:17px}
  .shapes{gap:16px;height:52px;margin-top:32px}
  .disc{width:44px;height:44px}.block{width:34px;height:34px}.spark{width:28px;height:28px}
  .post-link{grid-template-columns:1fr;gap:6px;padding:22px 0}
  .post-item-date{padding-top:0;order:-1}
  .post-item-title{font-size:20px}
  .post{padding-top:44px}
  .post-header{margin-bottom:32px}
  .prose{font-size:16.5px;line-height:1.84}
  .prose h2{font-size:21px}
  .footer-inner{flex-direction:column;gap:10px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
}

/* ---------- 打印 ---------- */
@media print{
  .site-header,.site-footer,.post-nav,.theme-toggle,.shapes{display:none}
  body{background:#fff;color:#000;font-size:11pt}
  .prose{max-width:none}
  .post,.page,.posts{padding:0}
  .prose a::after{content:" (" attr(href) ")";font-size:.85em;color:#555}
}