* { box-sizing: border-box; }
:root {
  --bg: #f7faf8;
  --ink: #14211f;
  --muted: #64736e;
  --line: #d8e4df;
  --panel: #ffffff;
  --soft: #ecf7f3;
  --green: #0f8f73;
  --teal: #1aa38b;
  --amber: #d9911f;
  --blue: #4267d5;
  --rose: #bd4d68;
  --dark: #101b18;
}
html, body { margin: 0; min-height: 100%; overflow-x: hidden; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Noto Sans TC", "Microsoft JhengHei", "Segoe UI", sans-serif;
  background:
    linear-gradient(135deg, rgba(15,143,115,0.14), rgba(255,255,255,0) 34%),
    radial-gradient(circle at 88% 10%, rgba(66,103,213,0.16), rgba(255,255,255,0) 28%),
    var(--bg);
  color: var(--ink);
  overflow: hidden;
}
a { color: inherit; }
.deck { width: 100vw; height: 100vh; position: relative; }
.slide {
  position: absolute;
  inset: 0;
  display: none;
  padding: 70px clamp(24px, 5vw, 76px) 60px;
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  scroll-padding: 72px 0 88px;
  -webkit-overflow-scrolling: touch;
  touch-action: pan-y;
}
.slide.active { display: flex; animation: enter 0.25s ease; }
@keyframes enter {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
.inner { width: min(1180px, 100%); min-width: 0; margin: auto; }
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--green);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.kicker::before {
  content: "";
  width: 30px;
  height: 3px;
  background: currentColor;
  border-radius: 999px;
}
h1, h2, h3, p { margin: 0; }
h1 {
  max-width: 850px;
  font-size: clamp(38px, 6.4vw, 76px);
  line-height: 1.1;
  letter-spacing: 0;
  font-weight: 850;
  overflow-wrap: anywhere;
  word-break: break-word;
}
h2 {
  font-size: clamp(30px, 4.2vw, 52px);
  line-height: 1.18;
  letter-spacing: 0;
  font-weight: 820;
  margin-bottom: 22px;
  overflow-wrap: anywhere;
  word-break: break-word;
}
h3 { font-size: clamp(18px, 2vw, 24px); line-height: 1.35; margin-bottom: 10px; }
p, li { color: var(--muted); font-size: clamp(15px, 1.35vw, 19px); line-height: 1.75; }
.lead { max-width: 780px; color: #31443f; font-size: clamp(18px, 2vw, 23px); }
.meta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.pill {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 9px 14px;
  background: rgba(255,255,255,0.82);
  color: #2c3e39;
  font-size: 14px;
  font-weight: 740;
  text-decoration: none;
}
.grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.panel {
  background: rgba(255,255,255,0.86);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
  box-shadow: 0 1px 0 rgba(255,255,255,0.8) inset;
}
.panel.green { border-top: 4px solid var(--green); }
.panel.amber { border-top: 4px solid var(--amber); }
.panel.blue { border-top: 4px solid var(--blue); }
.panel.rose { border-top: 4px solid var(--rose); }
.clean-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 9px; }
.clean-list li { position: relative; padding-left: 16px; }
.clean-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  background: var(--teal);
  border-radius: 50%;
}
.table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: 8px;
  background: var(--panel);
  border: 1px solid var(--line);
}
.table th, .table td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  color: #334843;
  font-size: 15px;
  vertical-align: top;
}
.table th { background: var(--soft); color: var(--green); font-weight: 820; }
.table tr:last-child td { border-bottom: 0; }
.run { display: grid; grid-template-columns: 96px 1fr; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: var(--panel); }
.run div { padding: 13px 16px; border-bottom: 1px solid var(--line); }
.run div:nth-last-child(-n+2) { border-bottom: 0; }
.time { background: var(--soft); color: var(--green); font-weight: 830; }
.note {
  margin-top: 18px;
  border-left: 4px solid var(--green);
  background: rgba(255,255,255,0.74);
  padding: 14px 16px;
  color: #425650;
  font-size: 15px;
  line-height: 1.7;
}
.diagram {
  width: 100%;
  max-height: 68vh;
  object-fit: contain;
  display: block;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
}
.code {
  white-space: pre-wrap;
  background: var(--dark);
  color: #dffaf2;
  border-radius: 8px;
  padding: 18px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13px;
  line-height: 1.55;
  max-height: 360px;
  overflow: auto;
}
.tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.tab, .btn {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 14px;
  background: var(--panel);
  color: var(--ink);
  cursor: pointer;
  font-weight: 760;
}
.tab.active, .btn.primary { background: var(--green); border-color: var(--green); color: #fff; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.field {
  background: rgba(255,255,255,0.88);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
}
.field label { display: block; font-weight: 800; margin-bottom: 8px; }
textarea, input {
  width: 100%;
  border: 1px solid #cbd9d3;
  border-radius: 8px;
  padding: 10px 12px;
  background: #fbfefd;
  color: var(--ink);
  font: inherit;
  line-height: 1.45;
}
textarea { min-height: 70px; resize: vertical; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 14px; }
.output {
  margin-top: 14px;
  white-space: pre-wrap;
  background: var(--dark);
  color: #dffaf2;
  border-radius: 8px;
  padding: 18px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13px;
  line-height: 1.6;
  max-height: 260px;
  overflow: auto;
}
.nav {
  position: fixed;
  right: 24px;
  bottom: 22px;
  z-index: 20;
  display: flex;
  gap: 8px;
}
.nav button, .nav a {
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: rgba(255,255,255,0.88);
  color: var(--ink);
  font-size: 18px;
  cursor: pointer;
  display: grid;
  place-items: center;
  text-decoration: none;
}
.counter {
  position: fixed;
  left: 24px;
  bottom: 30px;
  z-index: 20;
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0.08em;
}
.dots {
  position: fixed;
  top: 50%;
  right: 14px;
  transform: translateY(-50%);
  display: grid;
  gap: 8px;
  z-index: 20;
}
.dot {
  width: 7px;
  height: 7px;
  border: 0;
  border-radius: 50%;
  background: #bdd0ca;
  cursor: pointer;
}
.dot.active { background: var(--green); transform: scale(1.5); }
@media (max-width: 860px) {
  body { overflow: auto; }
  .deck { height: auto; min-height: 100vh; }
  .slide {
    position: relative;
    min-height: 100vh;
    padding: 70px 20px 86px;
    overflow: visible;
  }
  .slide.active { display: block; }
  .slide:not(.active) { display: none; }
  .inner { width: min(100%, 520px); margin: 0 auto; }
  h1 { width: 100%; font-size: 32px; line-height: 1.18; word-break: break-all; }
  h2 { width: 100%; font-size: 30px; line-height: 1.22; word-break: break-all; }
  .grid, .grid.two, .form-grid { grid-template-columns: 1fr; }
  .dots { display: none; }
}