:root{
  --coral:#f07f6a;--coral-dark:#c95f4e;--cream:#fff8f2;--ink:#2f3438;
  --muted:#6b7379;--line:#eadfd8;--card:#fff;--shadow:0 10px 30px rgba(64,49,42,.09);
}
*{box-sizing:border-box}
html{background:var(--cream);scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:linear-gradient(180deg,#fffaf6 0,#fff 42%,#fff8f2 100%);font-family:-apple-system,BlinkMacSystemFont,"Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;line-height:1.65}
button,input,select{font:inherit}
button{cursor:pointer}
.app-header{padding:calc(28px + env(safe-area-inset-top)) 20px 26px;background:linear-gradient(135deg,#f8a18f,#f07f6a);color:#fff;display:flex;justify-content:space-between;align-items:flex-end;gap:20px}
.app-header>div{max-width:760px}
.eyebrow{margin:0 0 2px;font-size:.82rem;font-weight:700;letter-spacing:.14em}
h1{font-size:clamp(1.75rem,5vw,2.8rem);line-height:1.24;margin:0}
.lead{margin:.75rem 0 0;max-width:42rem}
.install-button{border:1px solid rgba(255,255,255,.7);background:#fff;color:var(--coral-dark);padding:11px 16px;border-radius:999px;font-weight:700;white-space:nowrap}
main{width:min(1040px,calc(100% - 28px));margin:0 auto;padding:22px 0 60px}
.notice{display:flex;gap:.55rem;flex-wrap:wrap;padding:14px 16px;border:1px solid #f2c3b8;background:#fff5f1;border-radius:14px;margin-bottom:20px}
.search-area label{display:block;font-weight:700;margin-bottom:7px}
.search-area input{width:100%;padding:14px 16px;border:1px solid var(--line);border-radius:14px;background:#fff;font-size:16px;outline:none}
.search-area input:focus{border-color:var(--coral);box-shadow:0 0 0 3px rgba(240,127,106,.16)}
.category-tabs{display:flex;gap:8px;overflow-x:auto;padding:14px 0 12px;scrollbar-width:none}
.category-tabs::-webkit-scrollbar{display:none}
.category-tab{flex:none;border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:999px;padding:9px 14px;font-weight:700}
.category-tab.active{background:var(--ink);color:#fff;border-color:var(--ink)}
.tools{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:12px 0 28px}
.tool-card{display:flex;text-align:left;gap:12px;align-items:center;padding:16px;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:var(--shadow)}
.tool-icon{font-size:1.75rem}
.tool-card small{display:block;color:var(--muted);font-weight:400;margin-top:2px}
.section-heading{display:flex;justify-content:space-between;align-items:end;margin-bottom:12px}
.section-heading h2{margin:0;font-size:1.25rem}
#resultCount{color:var(--muted);font-size:.9rem}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.sign-card{position:relative;border:1px solid var(--line);background:var(--card);border-radius:16px;padding:17px;text-align:left;min-height:150px;box-shadow:0 4px 16px rgba(64,49,42,.05);transition:.18s transform,.18s box-shadow}
.sign-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.sign-card .icon{font-size:1.6rem;display:block;margin-bottom:10px}
.sign-card h3{margin:0 34px 6px 0;font-size:1rem;line-height:1.45}
.sign-card .zh-preview{margin:0;color:var(--muted);font-size:.92rem}
.favorite-mini{position:absolute;right:10px;top:9px;border:0;background:transparent;font-size:1.45rem;color:#c5b7ae;padding:5px}
.favorite-mini.on{color:#f1aa28}
.empty-message{text-align:center;color:var(--muted);padding:40px 0}
.safety-note{margin-top:32px;padding:20px;border-radius:16px;background:#f5f3f1;border:1px solid #e5dfda}
.safety-note h2{font-size:1.1rem;margin:0 0 8px}
.safety-note p{margin:.45rem 0}
footer{text-align:center;color:var(--muted);padding:0 20px calc(28px + env(safe-area-inset-bottom))}
dialog{border:0;padding:0;background:transparent;max-width:none}
dialog::backdrop{background:rgba(28,31,33,.7);backdrop-filter:blur(4px)}
.card-dialog{width:min(680px,calc(100% - 24px));border-radius:24px}
.dialog-inner,.builder-inner{position:relative;background:#fff;border-radius:24px;padding:28px}
.close-button{position:absolute;right:14px;top:12px;width:42px;height:42px;border:0;border-radius:50%;background:#f1eeeb;font-size:1.8rem;line-height:1}
.dialog-icon{text-align:center;font-size:2.3rem}
.dialog-title{text-align:center;font-weight:700;color:var(--muted)}
.dialog-chinese{font-family:"Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif;text-align:center;font-size:clamp(2rem,7vw,3.8rem);font-weight:800;line-height:1.35;margin:22px 0}
.dialog-japanese{text-align:center;color:var(--muted);font-size:1rem}
.dialog-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:22px}
.primary-button,.secondary-button{border-radius:12px;padding:13px 15px;font-weight:700}
.primary-button{border:1px solid var(--coral);background:var(--coral);color:#fff}
.secondary-button{border:1px solid var(--line);background:#fff;color:var(--ink)}
.wide{width:100%;margin-top:18px}
.text-button{display:block;margin:16px auto 0;border:0;background:transparent;text-decoration:underline;color:var(--coral-dark)}
.chinese-only-dialog{width:100vw;height:100dvh;margin:0;background:#1f2427;color:#fff}
.chinese-only-dialog[open]{display:flex;align-items:center;justify-content:center}
.chinese-only-dialog .close-button{position:fixed}
.close-button.light{background:rgba(255,255,255,.15);color:#fff}
#chineseOnlyText{font-family:"Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif;max-width:92vw;margin:0;text-align:center;font-size:clamp(3rem,12vw,7rem);font-weight:900;line-height:1.35}
.speak-only-button{position:fixed;bottom:calc(24px + env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);width:62px;height:62px;border:0;border-radius:50%;font-size:1.6rem}
.builder-dialog{width:min(700px,calc(100% - 22px));border-radius:24px}
.builder-inner{max-height:88dvh;overflow:auto}
.builder-inner h2{margin-top:0;padding-right:40px}
.builder-inner label{display:block;font-weight:700;margin-top:14px}
.builder-inner input[type=number],.builder-inner select{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:#fff;margin-top:5px;font-size:16px}
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:9px}
.check-row{display:flex!important;align-items:center;gap:9px;padding:11px;border:1px solid var(--line);border-radius:12px;margin:0!important;background:#fff;font-weight:600!important}
.check-row input{width:20px;height:20px}
.important-check{margin-top:12px!important;background:#fff5f1}
.builder-result{margin-top:20px;border-top:1px solid var(--line);padding-top:18px}
.builder-chinese{font-family:"Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif;font-size:1.8rem;font-weight:800;line-height:1.45}
#installInstructions ol{padding-left:1.4rem}
.mobile-only{display:none}
@media(max-width:780px){
  .app-header{display:block}
  .install-button{margin-top:18px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .tools{grid-template-columns:1fr}
}
@media(max-width:500px){
  .mobile-only{display:block}
  main{width:min(100% - 20px,1040px)}
  .card-grid{grid-template-columns:1fr}
  .sign-card{min-height:125px}
  .dialog-inner,.builder-inner{padding:24px 18px}
  .dialog-actions{grid-template-columns:1fr}
  .check-grid{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}