:root{
  --bg:#E9ECEF;
  --card:#F7FAFB;
  --card-glass:rgba(255,255,255,.55);
  --ink:#2F3E46;
  --muted:#7F949B;
  --line:#8FA3A9;
  --footer:#A0B0B6;
  --shadow:0 18px 45px rgba(47,62,70,.10);
  --radius:18px;
  font-family:system-ui,-apple-system,"Noto Sans TC",sans-serif;
}
*{ box-sizing:border-box; }
body{
  margin:0;
  min-height:100vh;
  display:grid;
  place-items:center;
  background:var(--bg);
  color:var(--ink);
}
.wrap{
  width:min(520px, 92vw);
  padding:22px;
}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:20px;
}
h1{
  margin:0 0 20px;
  font-size:18px;
  letter-spacing:.18em;
  font-weight:800;
  text-align:center;
  color:#BFC2CB;
}

/* ===== 模組區塊 ===== */
.section{
  margin-bottom:18px;
}
.section-title{
  margin:0 0 8px;
  font-size:16px;
  letter-spacing:.18em;
  font-weight:800;
  color:#B7B7BD;
}
.sub{
  margin:0 0 12px;
  color:var(--muted);
  font-size:12px;
  letter-spacing:.12em;
}

/* ===== 工具按鈕 ===== */
a.tool{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:14px;
  border:1px solid rgba(143,163,169,.55);
  border-radius:14px;
  text-decoration:none;
  color:inherit;

  background:linear-gradient(
    180deg,
    rgba(255,255,255,.85),
    rgba(255,255,255,.55)
  );

  box-shadow:
    0 6px 14px rgba(47,62,70,.06),
    inset 0 1px 0 rgba(255,255,255,.6);

  transition:transform .15s ease, box-shadow .15s ease, background .15s ease;
}
a.tool:hover{
  transform:translateY(-2px);
  box-shadow:
    0 10px 22px rgba(47,62,70,.10),
    inset 0 1px 0 rgba(255,255,255,.7);
}
a.tool:active{
  transform:translateY(0);
  box-shadow:
    0 4px 10px rgba(47,62,70,.05),
    inset 0 2px 4px rgba(0,0,0,.05);
}
a.tool:hover{ background:rgba(255,255,255,.75); }

.tool{
  align-items:center;
  margin-bottom:14px;
}
.section .tool:last-of-type{
  margin-bottom:0;
}

.tool .text{
  display:flex;
  flex-direction:column;
  gap:4px;
}

.name{
  font-weight:700;
  letter-spacing:.08em;
  color:#B7B7BD;
}
.desc{
  font-size:12px;
  color:var(--muted);
  letter-spacing:.08em;
}
.hint{
  font-size:12px;
  color:var(--muted);
  letter-spacing:.06em;
  white-space:nowrap;
}

.footer{
  margin-top:10px;
  font-size:11px;
  color:var(--footer);
  letter-spacing:.18em;
  text-align:right;
}