@charset "UTF-8";
/* 素笺·双版本 v3（opus53 10-29）：纸感底色 + 墨绿点缀 + 时间线；简洁但有层次 */
:root{
  --paper:#f5f3ec;--paper-2:#efece2;--card:#fffefa;--ink:#1f2622;--ink-2:#3c4540;--muted:#5f675f;--faint:#868c83;
  --line:#e2dfd3;--line-2:#d5d1c3;--accent:#2f6b52;--accent-2:#24543f;--accent-soft:#e6efe8;--gold:#b88a3e;
  --radius:14px;--radius-s:9px;--shadow:0 1px 0 rgba(31,38,34,.04),0 10px 30px -18px rgba(31,38,34,.28);
  --serif:"Songti SC","Noto Serif SC","Source Han Serif SC","STSong","SimSun",serif;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Segoe UI","Microsoft YaHei","Noto Sans SC",sans-serif;
  --mono:ui-monospace,"SFMono-Regular","Cascadia Code",Consolas,"Liberation Mono",monospace;
  --w:780px;color-scheme:light
}
@media (prefers-color-scheme:dark){:root{
  --paper:#0e1210;--paper-2:#1c2420;--card:#202925;--ink:#e7ebe6;--ink-2:#c5ccc5;--muted:#a3aca5;--faint:#858e87;
  --line:#34403a;--line-2:#45524b;--accent:#7cc0a0;--accent-2:#9ad3b8;--accent-soft:#1f2c26;--gold:#d7ad66;
  --shadow:0 1px 0 rgba(0,0,0,.2),0 14px 34px -20px rgba(0,0,0,.7);color-scheme:dark}}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:24px;-webkit-text-size-adjust:100%}
body{margin:0;color:var(--ink);font:16.5px/1.85 var(--sans);letter-spacing:.01em;
  background:radial-gradient(1200px 520px at 50% -180px,var(--accent-soft),transparent 70%),var(--paper);
  background-attachment:fixed;padding-bottom:calc(96px + env(safe-area-inset-bottom));
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
::selection{background:var(--accent);color:#fff}
a{color:var(--accent);text-decoration:none;transition:color .15s}
a:hover{color:var(--accent-2)}
button,input{font:inherit;color:inherit}
a,button,input{-webkit-tap-highlight-color:transparent}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:fixed;top:-80px;left:12px;padding:10px 14px;background:var(--card);border-radius:8px;z-index:30;box-shadow:var(--shadow)}
.skip:focus{top:12px}
.site-header,.layout,.site-footer{width:min(var(--w),calc(100% - 40px));margin:0 auto}

/* 页头 */
.site-header{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:30px 0 22px}
.brand{display:flex;align-items:center;gap:13px;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-mark{flex:none;width:42px;height:42px;display:grid;place-items:center;border-radius:12px;font:600 20px/1 var(--serif);
  color:#fff;background:linear-gradient(145deg,var(--accent),var(--accent-2));box-shadow:0 6px 16px -8px var(--accent)}
.brand-text{display:flex;flex-direction:column;line-height:1.3}
.brand-text strong{font:600 20px/1.3 var(--serif);letter-spacing:.06em}
.brand-text small{font-size:12.5px;color:var(--muted);margin-top:4px;letter-spacing:.02em}
.mode-chip{display:inline-flex;align-items:center;gap:7px;white-space:nowrap;font-size:12px;color:var(--muted);
  padding:6px 11px;border:1px solid var(--line-2);border-radius:999px;background:color-mix(in srgb,var(--card) 70%,transparent)}
.mode-chip i{width:7px;height:7px;border-radius:50%;background:var(--faint)}
.mode-chip.is-on{color:var(--accent);border-color:color-mix(in srgb,var(--accent) 40%,var(--line))}
.mode-chip.is-on i{background:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}

/* 解锁条 */
.access{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;margin:6px 0 40px;padding:16px 18px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.access-text strong{display:block;font-size:14.5px;font-weight:600}
.access-text p{margin:2px 0 0;font-size:13px;color:var(--muted)}
.access-controls{flex:1 1 300px;max-width:380px}
.unlock-form{display:flex;gap:8px;align-items:center}
.unlock-form input[type=password]{flex:1;min-width:0;height:42px;padding:0 14px;font-size:15px;border:1px solid var(--line-2);border-radius:var(--radius-s);
  background:var(--paper);transition:border-color .15s,box-shadow .15s}
.unlock-form input[type=password]:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.unlock-form button{flex:none;height:42px;padding:0 16px;font-size:14px;font-weight:500;color:#fff;cursor:pointer;
  border:0;border-radius:var(--radius-s);background:var(--accent);transition:background .15s,transform .1s}
.unlock-form button:hover{background:var(--accent-2)}
.unlock-form button:active{transform:translateY(1px)}
.is-auth .access-controls{flex:0 0 auto}.is-auth .unlock-form{justify-content:flex-end}
.is-auth .unlock-form button{background:transparent;color:var(--accent);border:1px solid var(--line-2)}
.is-auth .unlock-form button:hover{background:var(--accent-soft)}
.access-controls .notice{margin:0 0 8px;font-size:13px;color:#b04a3c}

/* 首页标题 */
.intro{margin:0 0 34px}
.eyebrow{margin:0 0 10px;font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--gold);font-weight:600}
.intro h1{margin:0 0 10px;font:600 clamp(28px,4.6vw,38px)/1.3 var(--serif);letter-spacing:.01em}
.intro h1 em{font-style:normal;color:var(--accent);font-weight:inherit}
.intro>p:last-child{margin:0;font-size:14.5px;color:var(--muted)}

/* 时间线 */
.timeline{position:relative}
.month{display:flex;align-items:baseline;gap:10px;margin:8px 0 18px;font:600 15px/1 var(--sans);color:var(--ink-2);letter-spacing:.04em}
.month span{font-size:12px;color:var(--faint);font-weight:500}
.month::after{content:"";flex:1;height:1px;background:var(--line);transform:translateY(-4px)}
.month:not(:first-child){margin-top:34px}
.entry{display:grid;grid-template-columns:62px 1fr;gap:16px;margin:0 0 16px;position:relative}
.entry::before{content:"";position:absolute;left:30px;top:62px;bottom:-16px;width:2px;margin-left:-1px;border-radius:1px;background:var(--line-2)}
.entry:last-child::before{display:none}
.entry-day{display:flex;flex-direction:column;align-items:center;justify-content:center;height:62px;border-radius:12px;
  color:var(--ink);background:var(--card);border:1px solid var(--line);font-variant-numeric:tabular-nums}
.entry-day b{font:600 23px/1 var(--serif)}
.entry-day span{margin-top:5px;font-size:12px;color:var(--muted)}
.entry-card{min-width:0;padding:18px 24px 10px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);transition:transform .2s ease,border-color .2s,box-shadow .2s}
.entry:hover .entry-card{transform:translateY(-2px);border-color:var(--line-2);box-shadow:0 1px 0 rgba(31,38,34,.04),0 18px 38px -22px rgba(31,38,34,.38)}
.entry:hover .entry-day{border-color:color-mix(in srgb,var(--accent) 35%,var(--line))}
.entry-head{display:flex;align-items:center;gap:10px}
.entry-date{font-size:15px;font-weight:600;color:var(--ink)}
.entry-date:hover{color:var(--accent)}
.tag{font-size:11px;padding:2px 8px;border-radius:999px;color:var(--accent);background:var(--accent-soft);font-weight:500}
.excerpt{margin:8px 0 2px;font-size:14.8px;line-height:1.8;color:var(--ink-2)}
.excerpt h1{display:none}
.excerpt h2{margin:14px 0 6px;font-size:13px;letter-spacing:.08em;color:var(--gold)}
.excerpt p{margin:0 0 .6em}
.read-link{display:inline-flex;align-items:center;gap:6px;min-height:40px;font-size:14px;font-weight:600}
.read-link span{transition:transform .2s}
.read-link:hover span{transform:translateX(3px)}

/* 列表：自定义圆点 */
.excerpt ul,.article-content ul{list-style:none;margin:0;padding:0}
.excerpt li,.article-content li{position:relative;padding-left:18px;margin:0 0 .55em}
.excerpt li::before,.article-content li::before{content:"";position:absolute;left:3px;top:.78em;width:6px;height:6px;border-radius:50%;
  background:var(--accent);opacity:.75}
.article-content ol{padding-left:1.4em}
.article-content ol li{padding-left:.2em}
.article-content ol li::before{display:none}

/* 文章页 */
.article{padding:6px 0 30px}
.article-header{display:flex;align-items:center;gap:18px;padding-bottom:24px;margin-bottom:28px;border-bottom:1px solid var(--line)}
.stamp{flex:none;width:72px;height:80px;display:flex;flex-direction:column;align-items:center;justify-content:center;border-radius:14px;
  color:#fff;background:linear-gradient(150deg,var(--accent),var(--accent-2));box-shadow:0 10px 22px -12px var(--accent)}
.stamp b{font:600 32px/1 var(--serif)}
.stamp span{margin-top:6px;font-size:10.5px;letter-spacing:.2em;opacity:.85}
.article-title{min-width:0}
.article-title .eyebrow{margin-bottom:6px}
.article-header h1{margin:0;font:600 clamp(24px,4vw,31px)/1.35 var(--serif)}
.article-meta{margin:6px 0 0;font-size:13px;color:var(--muted)}
.article-content{overflow-wrap:anywhere;font-size:16.5px;line-height:1.95;color:var(--ink-2)}
.article-content>*:first-child{margin-top:0}
.article-content>h1:first-child{display:none}
.article-content h2{display:flex;align-items:center;gap:10px;margin:36px 0 14px;font:600 19px/1.5 var(--sans);color:var(--ink)}
.article-content h2::before{content:"";width:4px;height:18px;border-radius:2px;background:var(--accent)}
.article-content h3{margin:24px 0 10px;font-size:17px;color:var(--ink)}
.article-content p{margin:0 0 1.15em}
.article-content li{margin-bottom:1.1em}
.article-content strong{color:var(--ink);font-weight:600}
.article-content blockquote{margin:1.2em 0;padding:10px 16px;border-left:3px solid var(--gold);background:var(--paper-2);border-radius:0 var(--radius-s) var(--radius-s) 0;color:var(--muted)}
.article-content code{font:13.5px/1.6 var(--mono);padding:.12em .42em;border-radius:5px;background:var(--paper-2);border:1px solid var(--line)}
.article-content pre{position:relative;margin:1.3em 0;padding:16px 18px;overflow-x:auto;font:13.5px/1.7 var(--mono);color:#e4e9e5;
  background:#1d2421;border-radius:var(--radius-s);box-shadow:inset 0 0 0 1px rgba(255,255,255,.04);tab-size:2}
.article-content pre code{padding:0;border:0;background:none;color:inherit;font:inherit}
.article-content img{max-width:100%;height:auto;border-radius:var(--radius-s)}
.article-content table{display:block;overflow-x:auto;border-collapse:collapse;font-size:14.5px;margin:1.2em 0}
.article-content th,.article-content td{padding:8px 12px;border-bottom:1px solid var(--line);text-align:left}
.article-content th{font-weight:600;color:var(--ink)}
.article-content hr{border:0;height:1px;margin:2em 0;background:var(--line)}
.not-found .read-link{font-size:15px}

/* 页脚 */
.site-footer{display:flex;align-items:center;gap:14px;margin-top:40px;padding:22px 0 8px;border-top:1px solid var(--line);font-size:12.5px;color:var(--muted)}
.site-footer .ornament{width:18px;height:18px;flex:none;border-radius:5px;background:linear-gradient(145deg,var(--accent),var(--gold));opacity:.75}
.site-footer a{margin-left:auto;min-height:40px;display:flex;align-items:center;white-space:nowrap}

/* 底部翻页条：悬浮胶囊 */
.reader-dock,.post-nav{display:grid;grid-template-columns:1fr auto 1fr;gap:6px;align-items:center}
.reader-dock{position:fixed;z-index:10;left:50%;bottom:calc(14px + env(safe-area-inset-bottom));transform:translateX(-50%);
  width:min(520px,calc(100% - 24px));padding:6px;border-radius:999px;border:1px solid var(--line);
  background:var(--card);
  box-shadow:0 2px 6px rgba(31,38,34,.06),0 16px 36px -12px rgba(31,38,34,.38)}
.reader-dock a,.reader-dock span,.post-nav a,.post-nav span{min-height:40px;display:flex;align-items:center;justify-content:center;padding:0 14px;
  border-radius:999px;font-size:13.5px;font-weight:500;line-height:1.3;white-space:nowrap}
.reader-dock a{color:var(--ink-2)}
.reader-dock a:hover{background:var(--accent-soft);color:var(--accent)}
.reader-dock>a:first-child,.reader-dock>span:first-child{justify-self:start}
.reader-dock>:last-child{justify-self:end}
.reader-dock span[aria-disabled]{color:var(--muted);opacity:.7}
.reader-dock .page-count{color:var(--ink-2);font-variant-numeric:tabular-nums;font-size:12.5px;padding:0 10px}
.reader-dock a[href$="/"]:not([rel]){color:#fff;background:var(--accent);padding:0 18px}
.reader-dock a[href$="/"]:not([rel]):hover{background:var(--accent-2);color:#fff}

/* 入场动效（尊重减少动效） */
@media (prefers-reduced-motion:no-preference){
  .entry,.article,.intro{animation:rise .5s cubic-bezier(.2,.7,.2,1) both}
  .entry:nth-child(2){animation-delay:.04s}.entry:nth-child(3){animation-delay:.08s}.entry:nth-child(4){animation-delay:.12s}
  .entry:nth-child(5){animation-delay:.16s}.entry:nth-child(6){animation-delay:.2s}
  @keyframes rise{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}

/* 手机 */
@media (max-width:600px){
  body{font-size:16px}
  .site-header,.layout,.site-footer{width:calc(100% - 28px)}
  .site-header{padding:20px 0 16px}
  .brand-mark{width:38px;height:38px;font-size:18px;border-radius:11px}
  .brand-text strong{font-size:18px}
  .brand-text small{display:none}
  .mode-chip{font-size:11px;padding:5px 9px}
  .access{padding:14px;margin-bottom:30px;gap:12px}
  .access-controls{max-width:none;flex-basis:100%}
  .entry{grid-template-columns:1fr;gap:0;margin-bottom:12px}
  .entry::before,.entry-day{display:none}
  .entry-card{padding:14px 16px 6px}
  .entry-date{font-size:16px}
  .stamp{width:60px;height:68px}
  .stamp b{font-size:26px}
  .article-header{gap:14px}
  .article-content{font-size:16px;line-height:1.9}
  .reader-dock a,.reader-dock span{padding:0 10px;font-size:13px}
}

@media print{.reader-dock,.access,.site-header .mode-chip,.skip{display:none}body{background:#fff;padding:0}.entry-card{box-shadow:none}}

@media (prefers-color-scheme:dark){.entry-card,.entry-day,.access{box-shadow:0 0 0 1px rgba(255,255,255,.02),0 12px 30px -18px rgba(0,0,0,.8)}.reader-dock{border-color:var(--line-2)}}
.article-content>h1:first-child+p,.article-content>p:first-child{font-size:14px;color:var(--muted);padding:10px 14px;background:var(--paper-2);border-radius:var(--radius-s)}

/* opus54 10-29: header entry to /apps/ (self-made software) */
.head-right{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:flex-end}
.apps-link{display:inline-flex;align-items:center;gap:7px;white-space:nowrap;font-size:13px;font-weight:500;padding:6px 13px;border-radius:999px;
  color:var(--accent);border:1px solid color-mix(in srgb,var(--accent) 35%,var(--line));background:var(--accent-soft);transition:background .15s,color .15s}
.apps-link svg{fill:currentColor}
.apps-link:hover{color:#fff;background:var(--accent)}
@media (max-width:600px){.head-right{gap:6px}.apps-link{padding:5px 11px;font-size:12.5px}}