/* OhMyBias 米 官網 — 沿用家族（App 內建 sweetlime 皮膚、外觀編輯器網站）的
   手繪線稿語彙：紙感底、細墨線、鍵帽造型控件、萊姆綠點綴。 */
:root{
  --paper:#FAF9F5;
  --card:#FFFFFF;
  --ink:#1C1C1A;
  --ink-soft:#6E6E66;
  --line:#1C1C1A;
  --line-soft:#D8D6CC;
  --lime:#B5CC5A;
  --lime-soft:#EFF3DC;
  --lime-deep:#6E8A1F;
  --stage:#F0EEE2;
  --stage-dot:rgba(28,28,26,.14);
  --radius:10px;
  --disp:"Chocolate Classical Sans","Noto Sans TC",sans-serif;
  --body:"Noto Sans TC",-apple-system,"PingFang TC","Microsoft JhengHei",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,"SF Mono",Menlo,monospace;
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--body);font-size:16.5px;line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:clip;
}
img{max-width:100%;display:block}
a{color:inherit}
code{
  font-family:var(--mono);font-size:.85em;background:var(--lime-soft);
  border:1px solid var(--line-soft);border-radius:6px;padding:.08em .38em;
  white-space:nowrap;
}
:focus-visible{outline:2.5px solid var(--lime-deep);outline-offset:2px;border-radius:4px}

/* ---------- 頁首 ---------- */
.site-head{
  position:sticky;top:0;z-index:20;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:10px clamp(16px,4vw,40px);
  background:color-mix(in srgb,var(--paper) 90%,transparent);
  backdrop-filter:blur(10px);
  border-bottom:1.5px solid var(--line);
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:700;font-size:18px}
.brand img{border-radius:9px;width:34px;height:34px}
.brand b{color:var(--lime-deep)}
.site-nav{display:flex;align-items:center;gap:clamp(8px,1.6vw,18px);font-weight:500;font-size:15.5px}
.site-nav a{text-decoration:none;color:var(--ink-soft);padding:3px 8px;border-radius:8px}
.site-nav a:hover{color:var(--ink);background:var(--lime-soft)}
.site-nav a.is-here{color:var(--ink);background:var(--lime);font-weight:700}
.site-nav .nav-gh{
  color:var(--ink);background:var(--card);
  border:1.5px solid var(--line);border-radius:var(--radius);padding:4px 14px;
}
.site-nav .nav-gh:hover{background:var(--lime-soft)}

/* ---------- 內頁標題 ---------- */
.page-head{
  background:var(--stage);
  background-image:radial-gradient(var(--stage-dot) 1.2px,transparent 1.2px);
  background-size:22px 22px;
  border-bottom:1.5px solid var(--line);
  padding:clamp(36px,5vw,60px) clamp(16px,4vw,40px);
  text-align:center;
}
.page-head h1{
  font-family:var(--disp);font-weight:400;
  font-size:clamp(32px,5vw,48px);margin:0 0 8px;
}
.page-head p{margin:0 auto;max-width:60ch;color:var(--ink-soft)}

/* ---------- hero ---------- */
.hero{
  background:var(--stage);
  background-image:radial-gradient(var(--stage-dot) 1.2px,transparent 1.2px);
  background-size:22px 22px;
  border-bottom:1.5px solid var(--line);
  padding:clamp(48px,8vw,92px) clamp(16px,4vw,40px) clamp(52px,7vw,80px);
}
.hero-inner{max-width:880px;margin:0 auto;text-align:center}
.eyebrow{
  font-family:var(--mono);font-size:13px;letter-spacing:.2em;
  color:var(--ink-soft);margin:0 0 18px;
}
.hero h1{
  font-family:var(--disp);font-weight:400;
  font-size:clamp(40px,7vw,68px);line-height:1.24;margin:0 0 18px;
  text-wrap:balance;
}
.hero-sub{max-width:600px;margin:0 auto 40px;color:var(--ink-soft);font-size:clamp(16px,2vw,18px)}
.hero-note{margin:16px 0 36px;font-size:14px;color:var(--ink-soft)}
.hero-note em{font-family:var(--mono);font-style:normal}

/* 簽名動畫：boshiamy → ohmybias → 米 */
.demo{
  display:inline-block;background:var(--card);
  border:1.5px solid var(--line);border-radius:16px;
  box-shadow:5px 6px 0 rgba(28,28,26,.14);
  padding:18px 22px 14px;width:min(100%,560px);
}
.demo-field{
  display:flex;align-items:center;justify-content:center;gap:2px;
  min-height:84px;border-bottom:1.5px solid var(--line-soft);padding-bottom:12px;
}
.demo-buffer{display:flex;gap:clamp(4px,1.2vw,8px)}
.demo-buffer .tile{
  width:clamp(25px,6.2vw,44px);height:clamp(36px,7.8vw,54px);
  display:grid;place-items:center;
  font-family:var(--mono);font-weight:600;font-size:clamp(17px,3vw,24px);
  background:var(--paper);color:var(--ink);
  border:1.5px solid var(--line);border-bottom-width:4px;
  border-radius:9px;
  opacity:0;transform:translateY(8px) scale(.85);
}
.demo-buffer .tile.on{opacity:1;transform:none;transition:opacity .18s,transform .18s}
.demo-buffer.gone .tile{opacity:0;transform:translateY(-10px) scale(.8);transition:all .25s}
.demo-commit{
  font-size:clamp(44px,8vw,60px);line-height:1;font-weight:500;
  color:var(--lime-deep);margin-right:6px;
  opacity:0;transform:scale(1.6);display:none;
}
.demo-commit.on{
  display:block;opacity:1;transform:none;
  transition:opacity .22s,transform .22s cubic-bezier(.2,1.4,.4,1);
}
.demo-caret{
  width:2.5px;height:clamp(38px,7vw,50px);background:var(--lime-deep);
  border-radius:2px;margin-left:6px;animation:caret 1.2s steps(1) infinite;
}
@keyframes caret{50%{opacity:0}}
.demo-candbar{
  display:flex;gap:6px;justify-content:flex-start;padding-top:12px;
  opacity:0;transform:translateY(4px);
}
.demo-candbar.on{opacity:1;transform:none;transition:all .2s}
.cand{
  display:inline-flex;align-items:baseline;gap:7px;
  font-size:18px;padding:5px 14px;border-radius:8px;color:var(--ink);
}
.cand b{font-family:var(--mono);font-weight:400;font-size:12.5px;color:var(--ink-soft)}
.cand.is-first{background:var(--lime);border:1.5px solid var(--line)}
.cand.is-first b{color:var(--ink)}

/* 平台候選列（hero 快速跳轉） */
.platbar{
  display:inline-flex;align-items:center;gap:4px;flex-wrap:wrap;justify-content:center;
  background:var(--card);border:1.5px solid var(--line);border-radius:14px;
  padding:8px 10px;box-shadow:5px 6px 0 rgba(28,28,26,.14);
}
.platbar-label{
  font-size:13px;color:var(--ink-soft);padding:0 10px;
  border-right:1.5px solid var(--line-soft);margin-right:4px;
}
.platbar a{
  display:inline-flex;align-items:baseline;gap:8px;text-decoration:none;
  font-weight:700;font-size:17px;padding:7px 16px;border-radius:8px;
  border:1.5px solid transparent;
}
.platbar a b{font-family:var(--mono);font-weight:400;font-size:12.5px;color:var(--ink-soft)}
.platbar a:hover{background:var(--lime-soft);border-color:var(--line)}

/* ---------- 理念鍵帽 ---------- */
.pledge{padding:clamp(40px,6vw,72px) clamp(16px,4vw,40px)}
.pledge-caps{
  list-style:none;margin:0 auto;padding:0;max-width:1080px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
}
.pledge-caps li{
  background:var(--card);
  border:1.5px solid var(--line);border-bottom-width:5px;
  border-radius:14px;padding:22px 22px 18px;
}
.pledge-caps b{
  display:block;font-family:var(--disp);font-weight:400;
  font-size:26px;margin-bottom:6px;color:var(--lime-deep);
}
.pledge-caps span{font-size:14.5px;color:var(--ink-soft);line-height:1.65;display:block}

/* ---------- 字表聲明 ---------- */
.table-note{padding:0 clamp(16px,4vw,40px) clamp(40px,6vw,64px)}
.table-note-card{
  max-width:1080px;margin:0 auto;background:var(--lime-soft);
  border:1.5px dashed var(--ink);border-radius:16px;
  padding:clamp(22px,3.5vw,34px) clamp(22px,4vw,40px);
}
.table-note-card h2{
  font-family:var(--disp);font-weight:400;font-size:clamp(22px,3vw,28px);margin:0 0 10px;
}
.table-note-card p{margin:0;max-width:72ch}

/* ---------- 區塊標題 ---------- */
.sec-title{
  font-family:var(--disp);font-weight:400;text-align:center;
  font-size:clamp(28px,4.4vw,42px);margin:0 0 10px;text-wrap:balance;
}
.sec-sub{text-align:center;color:var(--ink-soft);margin:0 auto 44px;max-width:56ch}

/* ---------- 首頁平台卡 ---------- */
.plat-cards{
  padding:0 clamp(16px,4vw,40px) clamp(48px,7vw,80px);
  max-width:1120px;margin:0 auto;
}
.plat-cards-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.plat-card{
  background:var(--card);border:1.5px solid var(--line);border-radius:16px;
  overflow:hidden;display:flex;flex-direction:column;
  box-shadow:5px 6px 0 rgba(28,28,26,.1);
}
.plat-card-media{
  background:var(--stage);border-bottom:1.5px solid var(--line);
  aspect-ratio:16/10;display:grid;place-items:center;overflow:hidden;
  position:relative;
}
.plat-card-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain}
.media-ios{background:#000}
.media-android{background:#ECE9DD}
.plat-card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.plat-card h3{
  font-family:var(--disp);font-weight:400;font-size:24px;margin:0;line-height:1.35;
}
.plat-card h3 small{display:block;font-family:var(--body);font-size:13.5px;color:var(--ink-soft)}
.plat-card p{margin:0;font-size:14.5px;color:var(--ink-soft);flex:1}
.plat-card-links{display:flex;gap:10px;flex-wrap:wrap}

/* ---------- 按鈕 ---------- */
.btn{
  display:inline-block;text-decoration:none;font-weight:700;font-size:15px;
  padding:9px 20px;border-radius:var(--radius);color:var(--ink);
  background:var(--card);border:1.5px solid var(--line);
  transition:background .06s;
}
.btn:hover{background:var(--lime-soft)}
.btn-solid{background:var(--lime)}
.btn-solid:hover{background:var(--lime)}

/* ---------- 內頁通用段 ---------- */
.page-main{max-width:1120px;margin:0 auto;padding:clamp(36px,5vw,64px) clamp(16px,4vw,40px)}
.page-sec{margin-bottom:clamp(48px,7vw,80px);scroll-margin-top:76px}
.page-sec:last-child{margin-bottom:0}

/* ---------- 功能頁 ---------- */
.engine-grid{
  list-style:none;margin:0;padding:0;
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
}
.engine-grid li{
  background:var(--card);border:1.5px solid var(--line);border-bottom-width:4px;
  border-radius:14px;padding:20px 20px 16px;
}
.engine-grid h3{font-size:17px;margin:0 0 8px;line-height:1.5}
.engine-grid p{margin:0;font-size:14px;color:var(--ink-soft);line-height:1.7}
.engine-grid p a{color:var(--lime-deep)}
.chip{
  display:inline-block;font-family:var(--mono);font-weight:400;font-size:11px;
  background:var(--lime-soft);border:1px solid var(--line-soft);border-radius:99px;
  padding:1px 9px;color:var(--ink-soft);vertical-align:2px;margin-left:2px;
  white-space:nowrap;
}

/* ,, 指令表 */
.cmd-table-wrap{overflow-x:auto;border:1.5px solid var(--line);border-radius:14px;background:var(--card)}
.cmd-table{border-collapse:collapse;width:100%;font-size:15px}
.cmd-table th,.cmd-table td{padding:11px 18px;text-align:left;vertical-align:top}
.cmd-table th{
  font-family:var(--mono);font-size:12.5px;letter-spacing:.12em;font-weight:600;
  color:var(--ink-soft);border-bottom:1.5px solid var(--line);background:var(--lime-soft);
}
.cmd-table td{border-bottom:1px solid var(--line-soft)}
.cmd-table tr:last-child td{border-bottom:0}
.cmd-table td:first-child{font-family:var(--mono);font-weight:600;white-space:nowrap}

/* 平台功能對照兩欄 */
.feat-cols{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.feat-col{
  background:var(--card);border:1.5px solid var(--line);border-radius:16px;
  padding:24px 26px;
}
.feat-col h3{
  font-family:var(--disp);font-weight:400;font-size:24px;margin:0 0 4px;
}
.feat-col .feat-col-sub{font-size:13.5px;color:var(--ink-soft);margin:0 0 14px}
.feats{margin:0;padding:0;list-style:none}
.feats li{
  padding:8px 0 8px 26px;position:relative;font-size:15px;line-height:1.65;
  border-top:1px dotted var(--line-soft);
}
.feats li:first-child{border-top:0}
.feats li::before{
  content:"米";position:absolute;left:0;top:10px;
  font-size:12px;color:var(--lime-deep);
}
.feats li b{font-weight:700}

/* ---------- 下載頁 ---------- */
.dl-plat{
  display:grid;grid-template-columns:5fr 6fr;gap:clamp(24px,4vw,56px);
  align-items:start;padding:clamp(32px,5vw,52px) 0;
  border-top:1.5px solid var(--line);scroll-margin-top:76px;
}
.dl-plat:first-of-type{border-top:0;padding-top:0}
.dl-media img{
  border-radius:14px;border:1.5px solid var(--line);
  box-shadow:5px 6px 0 rgba(28,28,26,.1);
}
.dl-kicker{
  font-family:var(--mono);font-size:13px;letter-spacing:.14em;color:var(--ink-soft);margin:0 0 6px;
}
.dl-kicker b{
  display:inline-grid;place-items:center;width:22px;height:22px;margin-right:8px;
  background:var(--lime);border:1.5px solid var(--line);border-radius:6px;color:var(--ink);
  font-weight:600;font-size:12.5px;
}
.dl-plat h2{
  font-family:var(--disp);font-weight:400;font-size:clamp(26px,3.4vw,32px);
  margin:0 0 4px;line-height:1.3;
}
.dl-req{font-size:14px;color:var(--ink-soft);margin:0 0 14px}
.dl-steps{margin:0 0 20px;padding:0 0 0 2px;counter-reset:step;list-style:none}
.dl-steps li{
  counter-increment:step;position:relative;padding:8px 0 8px 40px;
  font-size:15.5px;line-height:1.65;border-top:1px dotted var(--line-soft);
}
.dl-steps li:first-child{border-top:0}
.dl-steps li::before{
  content:counter(step);position:absolute;left:0;top:9px;
  width:26px;height:26px;display:grid;place-items:center;
  background:var(--card);border:1.5px solid var(--line);border-radius:8px;
  font-family:var(--mono);font-size:13px;font-weight:600;
}
.dl-ctas{display:flex;gap:12px;flex-wrap:wrap}
.dl-foot{font-size:13.5px;color:var(--ink-soft);margin:12px 0 0}

/* macOS 選單列 mock */
.macmock{
  background:var(--stage);
  background-image:radial-gradient(var(--stage-dot) 1.2px,transparent 1.2px);
  background-size:22px 22px;
  border:1.5px solid var(--line);border-radius:14px;
  box-shadow:5px 6px 0 rgba(28,28,26,.1);
  overflow:hidden;position:relative;min-height:280px;
}
.macmock-bar{
  display:flex;align-items:center;gap:14px;
  background:var(--card);
  border-bottom:1.5px solid var(--line);
  padding:7px 14px;font-size:13.5px;font-weight:600;
}
.macmock-apple{width:13px;height:13px;border-radius:4px 4px 5px 5px;background:var(--ink);opacity:.85}
.macmock-spring{flex:1}
.macmock-ime{
  background:var(--ink);color:var(--paper);border-radius:4px;
  font-size:12px;padding:1px 5px;
}
.macmock-menu{
  position:absolute;right:12px;top:38px;width:170px;
  background:var(--card);border:1.5px solid var(--line);border-radius:10px;
  box-shadow:4px 5px 0 rgba(28,28,26,.14);
  padding:5px;font-size:14px;
}
.macmock-item{padding:5px 12px;border-radius:6px}
.macmock-item.is-on{background:var(--lime);font-weight:600}
.macmock-sep{height:1px;background:var(--line-soft);margin:4px 8px}
.macmock-glyph{
  position:absolute;left:26px;bottom:20px;
  font-family:var(--disp);font-size:clamp(44px,6vw,60px);color:var(--ink);
  letter-spacing:.06em;opacity:.16;
}

/* ---------- 更新頁 ---------- */
.news-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:start}
.news-col{
  background:var(--card);border:1.5px solid var(--line);border-radius:16px;
  padding:22px 24px;
}
.news-col>h2{
  font-family:var(--disp);font-weight:400;font-size:24px;margin:0 0 2px;
}
.news-col-sub{font-size:13px;color:var(--ink-soft);margin:0 0 16px}
.rel{border-top:1.5px solid var(--line-soft);padding:14px 0}
.rel:last-of-type{padding-bottom:4px}
.rel h3{display:flex;align-items:baseline;gap:8px 10px;margin:0 0 4px;font-size:16px;flex-wrap:wrap}
.rel h3 .ver{flex-shrink:0;
  font-family:var(--mono);font-size:13px;font-weight:600;
  background:var(--lime-soft);border:1px solid var(--line-soft);
  border-radius:6px;padding:1px 8px;
}
.rel h3 time{font-family:var(--mono);font-weight:400;font-size:12px;color:var(--ink-soft);white-space:nowrap;margin-left:auto}
.rel p{margin:0;font-size:14px;color:var(--ink-soft);line-height:1.7}
.rel ul{margin:6px 0 0;padding-left:18px;font-size:14px;color:var(--ink-soft)}
.rel ul li{margin:3px 0}
.news-more{display:block;margin-top:14px;font-size:14px;color:var(--lime-deep)}

/* ---------- footer ---------- */
.site-foot{
  background:var(--ink);color:#C9C7BC;
  border-top:1.5px solid var(--line);
  padding:clamp(48px,6vw,72px) clamp(16px,4vw,40px) 32px;
}
.foot-cols{
  max-width:1120px;margin:0 auto;display:grid;
  grid-template-columns:repeat(3,1fr);gap:clamp(24px,4vw,56px);
}
.site-foot h2{
  font-family:var(--disp);font-weight:400;font-size:20px;color:var(--paper);margin:0 0 12px;
}
.site-foot ul{list-style:none;margin:0;padding:0}
.site-foot li{padding:3px 0;font-size:14.5px}
.site-foot a{color:var(--lime);text-decoration-color:rgba(181,204,90,.4)}
.site-foot p{font-size:14.5px;margin:0 0 12px}
.foot-lic{color:#8B897E;font-size:13px}
.foot-mark{
  text-align:center;font-size:40px;color:var(--lime);
  margin:48px 0 0;opacity:.9;
}

/* ---------- responsive ---------- */
@media (max-width:960px){
  .pledge-caps{grid-template-columns:repeat(2,1fr)}
  .engine-grid{grid-template-columns:repeat(2,1fr)}
  .plat-cards-grid{grid-template-columns:1fr}
  .news-cols{grid-template-columns:1fr}
  .feat-cols{grid-template-columns:1fr}
}
@media (max-width:820px){
  .dl-plat{grid-template-columns:1fr;gap:24px}
  .dl-media{max-width:480px}
  .foot-cols{grid-template-columns:1fr}
}
@media (max-width:560px){
  .pledge-caps{grid-template-columns:1fr}
  .engine-grid{grid-template-columns:1fr}
  .platbar-label{display:none}
  .site-nav{font-size:14px}
  .site-nav a{padding:3px 5px}
  .site-nav .nav-gh{display:none}
  .brand span{font-size:16px}
  .demo{padding:14px 12px 12px}
  .demo-commit{margin-right:2px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  /* 無限循環的動畫被縮成 .01ms 會變高速頻閃 — 游標直接改恆亮 */
  .demo-caret{animation:none;opacity:1}
}