@charset "UTF-8";
/* 自制软件页（opus54 10-29）：沿用博客 v3 纸感 + 墨绿配色 */
: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:16px;--radius-s:10px;--shadow:0 1px 0 rgba(31,38,34,.04),0 14px 34px -20px rgba(31,38,34,.32);
  --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,monospace;--w:860px;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 16px 36px -22px rgba(0,0,0,.75);color-scheme:dark}}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;color:var(--ink);font:16px/1.8 var(--sans);letter-spacing:.01em;
  background:radial-gradient(1200px 520px at 50% -180px,var(--accent-soft),transparent 70%),var(--paper);background-attachment:fixed;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:var(--accent);text-decoration:none}a:hover{color:var(--accent-2)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.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}
.top,.wrap,.foot{width:min(var(--w),calc(100% - 40px));margin:0 auto}

.top{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:30px 0 10px}
.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}
.nav{display:flex;gap:4px;padding:4px;border:1px solid var(--line-2);border-radius:999px;background:color-mix(in srgb,var(--card) 70%,transparent)}
.nav a{padding:6px 14px;border-radius:999px;font-size:13.5px;color:var(--muted)}
.nav a:hover{color:var(--ink)}
.nav a.on{color:#fff;background:var(--accent)}

.hero{padding:44px 0 26px}
.eyebrow{margin:0;font-size:12px;letter-spacing:.18em;color:var(--gold);font-weight:600}
.hero h1{margin:6px 0 10px;font:600 clamp(30px,5vw,40px)/1.2 var(--serif);letter-spacing:.06em}
.lead{margin:0;max-width:36em;text-wrap:pretty;color:var(--ink-2);font-size:16.5px}

.apps{display:grid;gap:26px;padding-bottom:20px}
.app{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px 30px 24px}
.app-head{display:flex;gap:18px;align-items:center}
.app-logo{flex:none;width:64px;height:64px;border-radius:16px;box-shadow:0 8px 20px -12px rgba(17,92,69,.6)}
.app-title h2{margin:0;font:600 22px/1.3 var(--serif);letter-spacing:.04em}
.tagline{margin:4px 0 6px;color:var(--ink-2);font-size:15px}
.meta{margin:0;display:flex;flex-wrap:wrap;gap:6px;font-size:12.5px;color:var(--faint)}
.meta .dot{opacity:.6}
.intro{margin:20px 0 0;color:var(--ink-2)}

.shots{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin-top:20px}
.shot{padding:0;border:1px solid var(--line);border-radius:var(--radius-s);background:var(--paper-2);cursor:zoom-in;overflow:hidden;text-align:left;font:inherit;color:var(--muted)}
.shot img{display:block;width:100%;aspect-ratio:16/10;object-fit:contain;background:var(--paper)}
.shot span{display:block;padding:8px 10px;font-size:12.5px}
.shot:hover{border-color:var(--accent)}

.cols{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:22px;align-items:start}
.col{padding:18px 20px;border-radius:var(--radius-s);background:var(--paper);border:1px solid var(--line)}
.col h3{margin:0 0 8px;font-size:14px;letter-spacing:.08em;color:var(--accent)}
.col ul,.col ol{margin:0;padding:0;list-style:none}
.col li{text-wrap:pretty;position:relative;padding:5px 0 5px 28px;font-size:14.5px;line-height:1.65}
.ticks li::before{content:"";position:absolute;left:4px;top:12px;width:12px;height:7px;border-left:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(-45deg)}
.steps{counter-reset:s}
.steps li{counter-increment:s}
.steps li::before{content:counter(s);position:absolute;left:0;top:6px;width:20px;height:20px;border-radius:50%;display:grid;place-items:center;
  font-size:12px;font-weight:600;color:#fff;background:var(--accent)}

.note{margin:18px 0 0;padding:12px 14px;font-size:13.5px;color:var(--muted);border-left:3px solid var(--gold);background:color-mix(in srgb,var(--gold) 8%,transparent);border-radius:0 8px 8px 0}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-width:150px;height:46px;padding:0 22px;border-radius:12px;font-size:15px;font-weight:600;transition:background .15s,transform .1s,border-color .15s}
.btn.primary{color:#fff;background:var(--accent);box-shadow:0 10px 22px -12px var(--accent)}
.btn.primary:hover{background:var(--accent-2);color:#fff}
.btn.primary:active{transform:translateY(1px)}
.btn.ghost{color:var(--accent);border:1px solid var(--line-2);background:transparent}
.btn.ghost:hover{border-color:var(--accent)}
.btn.disabled{color:var(--muted);border:1px dashed var(--line-2);background:var(--paper);font-weight:500;cursor:default}
.hash{margin:12px 0 0;font-size:12px;color:var(--faint);word-break:break-all}
.hash code{font:12px var(--mono)}

.faq{margin:34px 0 10px}
.faq h2{font:600 18px/1.4 var(--serif);letter-spacing:.06em;margin:0 0 10px}
.faq details{border-top:1px solid var(--line);padding:12px 2px}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;font-weight:500;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";float:right;font-size:20px;line-height:1.3;color:var(--accent)}
.faq details[open] summary::after{content:"−"}
.faq p{margin:8px 0 0;color:var(--muted);font-size:14.5px}
.empty{padding:40px;text-align:center;color:var(--muted);background:var(--card);border:1px dashed var(--line-2);border-radius:var(--radius)}

.foot{display:flex;justify-content:space-between;gap:12px;padding:40px 0 50px;font-size:13px;color:var(--faint)}

.shot-view{position:fixed;inset:0;z-index:50;display:grid;place-items:center;padding:24px;background:rgba(10,14,12,.82)}
.shot-view[hidden]{display:none}
.shot-view img{max-width:min(1100px,100%);max-height:88vh;border-radius:10px;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.shot-close{position:absolute;top:16px;right:20px;width:40px;height:40px;border:0;border-radius:50%;font-size:24px;color:#fff;background:rgba(255,255,255,.12);cursor:pointer}

@media (max-width:640px){
  .top{flex-wrap:wrap}
  .app{padding:22px 18px 20px}
  .cols{grid-template-columns:1fr}
  .app-logo{width:54px;height:54px}
  .btn{flex:1}
  .foot{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}