:root {
  --bg: #120d18;
  --bg-2: #1a1123;
  --panel: #21162b;
  --panel-soft: #291b35;
  --line: rgba(255, 193, 102, 0.16);
  --line-strong: rgba(255, 193, 102, 0.32);
  --text: #fff8ef;
  --muted: #c7b8c9;
  --accent: #ffb454;
  --accent-2: #ffd393;
  --mint: #7ee2bd;
  --pink: #ef91b8;
  --danger: #ff8f8f;
  --topbar-h: 72px;
  --sidebar-w: 320px;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
html { scroll-behavior: smooth; }
body {
  color: var(--text);
  background:
    radial-gradient(circle at 8% 8%, rgba(255, 180, 84, 0.10), transparent 25%),
    radial-gradient(circle at 88% 15%, rgba(126, 226, 189, 0.08), transparent 28%),
    linear-gradient(180deg, #100b16, #181020 55%, #120d18);
  font-family: "Microsoft JhengHei", "Noto Sans TC", system-ui, sans-serif;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.30;
  background-image:
    linear-gradient(rgba(255, 180, 84, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 180, 84, 0.035) 1px, transparent 1px);
  background-size: 44px 44px;
}

button { font: inherit; }
a { color: inherit; }

/* ===== Topbar ===== */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 0 26px;
  border-bottom: 1px solid var(--line);
  background: rgba(18, 13, 24, 0.95);
  backdrop-filter: blur(16px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 330px;
}

.brand-logo {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  color: #21130a;
  font-family: Consolas, monospace;
  font-weight: 900;
  border-radius: 13px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 8px 24px rgba(255, 180, 84, 0.15);
}

.brand div { display: grid; gap: 3px; }
.brand strong { font-size: 1rem; }
.brand small { color: var(--muted); font-size: 0.72rem; }

.topnav {
  display: flex;
  gap: 8px;
  margin-left: auto;
}

.topnav-item {
  padding: 10px 14px;
  color: #c9b9ca;
  border: 1px solid transparent;
  border-radius: 10px;
  background: transparent;
  cursor: pointer;
  transition: 0.18s;
}

.topnav-item:hover,
.topnav-item.active {
  color: #fffaf3;
  border-color: rgba(255, 180, 84, 0.18);
  background: rgba(255, 180, 84, 0.08);
}

.mobile-menu-btn {
  display: none;
  margin-left: auto;
  width: 42px;
  height: 42px;
  color: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.03);
  cursor: pointer;
}

/* ===== Layout ===== */
.app-shell {
  position: relative;
  z-index: 1;
  min-height: calc(100vh - var(--topbar-h));
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
}

.sidebar {
  position: sticky;
  top: var(--topbar-h);
  height: calc(100vh - var(--topbar-h));
  overflow-y: auto;
  border-right: 1px solid var(--line);
  background: rgba(25, 16, 33, 0.95);
}

.sidebar-head {
  position: sticky;
  top: 0;
  z-index: 3;
  padding: 20px 18px 16px;
  border-bottom: 1px solid var(--line);
  background: rgba(25, 16, 33, 0.98);
}

.sidebar-kicker {
  color: var(--accent);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.sidebar h2 { margin: 6px 0 0; font-size: 1rem; }
.sidebar-close { display: none; }
.accordion { padding: 10px 10px 26px; }

.chapter {
  margin-bottom: 7px;
  border: 1px solid transparent;
  border-radius: 12px;
  overflow: hidden;
}

.chapter.open {
  border-color: rgba(255, 180, 84, 0.13);
  background: rgba(255, 180, 84, 0.025);
}

.chapter-button {
  width: 100%;
  padding: 13px 12px;
  display: grid;
  grid-template-columns: 42px 1fr 20px;
  gap: 8px;
  align-items: center;
  text-align: left;
  color: #eadfea;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.chapter-button:hover { background: rgba(255, 255, 255, 0.025); }

.chapter-no {
  color: var(--accent);
  font-family: Consolas, monospace;
  font-size: 0.78rem;
  font-weight: 900;
}

.chapter-arrow { color: #a68ca9; transition: transform 0.18s; }
.chapter.open .chapter-arrow { transform: rotate(90deg); }

.submenu {
  display: none;
  padding: 4px 8px 10px 50px;
}

.chapter.open .submenu { display: block; }

.submenu button {
  width: 100%;
  margin: 2px 0;
  padding: 9px 10px;
  text-align: left;
  color: #bfaec2;
  border: 0;
  border-left: 2px solid transparent;
  border-radius: 7px;
  background: transparent;
  cursor: pointer;
}

.submenu button:hover,
.submenu button.active {
  color: #fff;
  border-left-color: var(--accent);
  background: rgba(255, 180, 84, 0.07);
}

/* ===== Content ===== */
.content { padding: 28px; min-width: 0; }

.content-breadcrumb {
  max-width: 1060px;
  margin: 0 auto 12px;
  color: #9f8ba2;
  font-size: 0.78rem;
}

.content-card {
  max-width: 1060px;
  margin: 0 auto;
  padding: 34px 40px 56px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.018), transparent),
    rgba(31, 20, 41, 0.90);
  box-shadow: 0 22px 65px rgba(0, 0, 0, 0.28);
}

.heading-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.chapter-label,
.time-badge {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 4px 9px;
  border-radius: 999px;
  font-size: 0.69rem;
  font-weight: 900;
  letter-spacing: 0.13em;
}

.chapter-label {
  color: #2a1709;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

.time-badge {
  color: var(--mint);
  border: 1px solid rgba(126, 226, 189, 0.18);
  background: rgba(126, 226, 189, 0.06);
}

.content-heading h1 {
  margin: 10px 0 12px;
  font-size: clamp(2rem, 4vw, 3.15rem);
  letter-spacing: -0.04em;
}

.content-heading p {
  max-width: 850px;
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.lesson-content { margin-top: 38px; }

.lesson-block {
  padding: 26px 0;
  border-top: 1px solid var(--line);
}

.lesson-block:first-child { border-top: 0; padding-top: 0; }
.lesson-block h2 { margin: 0 0 14px; font-size: 1.28rem; }
.lesson-block h3 { margin: 28px 0 12px; color: #fff6ea; font-size: 1.06rem; }
.lesson-block p,
.content-list { color: #d3c6d3; line-height: 1.85; }

.content-list { padding-left: 1.3rem; }
.content-list li + li { margin-top: 6px; }

/* ===== Course overview / Cards ===== */
.course-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.summary-card,
.concept-card,
.practice-card {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.022);
}

.summary-card strong,
.concept-card strong,
.practice-card strong {
  display: block;
  color: #fff7ed;
  margin-bottom: 8px;
}

.summary-card span,
.concept-card p,
.practice-card p {
  color: var(--muted);
  line-height: 1.7;
  margin: 0;
}

.summary-number {
  display: inline-flex;
  margin-bottom: 12px;
  color: var(--accent);
  font-family: Consolas, monospace;
  font-weight: 900;
}

.concept-grid,
.practice-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 16px;
}

.component-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.component-tag {
  padding: 6px 9px;
  color: #ffe3b8;
  font-size: 0.78rem;
  border: 1px solid rgba(255, 180, 84, 0.18);
  border-radius: 999px;
  background: rgba(255, 180, 84, 0.06);
}

.notice,
.tip,
.goal-box {
  margin-top: 16px;
  padding: 14px 16px;
  border-radius: 11px;
  line-height: 1.75;
}

.notice {
  color: #ffe1e1;
  border-left: 4px solid var(--danger);
  background: rgba(255, 143, 143, 0.07);
}

.tip {
  color: #d7fff0;
  border-left: 4px solid var(--mint);
  background: rgba(126, 226, 189, 0.07);
}

.goal-box {
  color: #ffe8c8;
  border-left: 4px solid var(--accent);
  background: rgba(255, 180, 84, 0.07);
}

/* ===== App Inventor block-like sample ===== */
.block-demo {
  margin: 16px 0;
  padding: 16px;
  border: 1px solid rgba(239, 145, 184, 0.16);
  border-radius: 14px;
  background: rgba(11, 8, 15, 0.55);
}

.block-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 7px;
  margin: 8px 0;
}

.block-chip {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 7px 11px;
  border-radius: 8px;
  font-family: Consolas, "Microsoft JhengHei", monospace;
  font-size: 0.88rem;
  font-weight: 700;
}

.block-event { color: #fff5dc; background: #9a6c22; }
.block-control { color: #fff; background: #8c5bb6; }
.block-variable { color: #fff; background: #cf7c2c; }
.block-text { color: #fff; background: #3f916a; }
.block-math { color: #fff; background: #4f83bd; }
.block-component { color: #fff; background: #aa4e70; }

pre {
  overflow-x: auto;
  margin: 16px 0;
  padding: 20px;
  border: 1px solid rgba(255, 180, 84, 0.12);
  border-radius: 14px;
  background: #0d0912;
}

code { font-family: Consolas, "Courier New", monospace; }

.resource-card {
  display: block;
  margin-top: 16px;
  padding: 18px 20px;
  color: var(--text);
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 15px;
  background:
    linear-gradient(135deg, rgba(126, 226, 189, 0.05), transparent 55%),
    rgba(255, 255, 255, 0.02);
  transition: 0.18s;
}

.resource-card:hover {
  transform: translateY(-2px);
  border-color: rgba(126, 226, 189, 0.30);
}

.resource-card strong { color: var(--mint); }
.resource-card p { color: var(--muted); margin: 8px 0 0; line-height: 1.7; }

.tutorial-img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 18px 0 34px;
  border: 1px solid rgba(255, 180, 84, 0.16);
  border-radius: 12px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.26);
}

.sidebar-overlay { display: none; }

/* ===== Responsive ===== */
@media (max-width: 980px) {
  .course-summary { grid-template-columns: 1fr; }
  .brand { min-width: 0; }
  .brand small { display: none; }
  .topnav { display: none; }
  .mobile-menu-btn { display: block; }
  .app-shell { grid-template-columns: 1fr; }

  .sidebar {
    position: fixed;
    top: var(--topbar-h);
    left: 0;
    z-index: 150;
    width: min(86vw, 330px);
    height: calc(100vh - var(--topbar-h));
    transform: translateX(-105%);
    transition: transform 0.22s;
    box-shadow: 18px 0 50px rgba(0, 0, 0, 0.34);
  }

  .sidebar.open { transform: translateX(0); }

  .sidebar-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .sidebar-close {
    display: grid;
    place-items: center;
    width: 36px;
    height: 36px;
    color: #fff;
    font-size: 1.4rem;
    border: 1px solid var(--line);
    border-radius: 9px;
    background: rgba(255, 255, 255, 0.03);
    cursor: pointer;
  }

  .sidebar-overlay {
    position: fixed;
    inset: var(--topbar-h) 0 0;
    z-index: 140;
    background: rgba(0, 0, 0, 0.52);
  }

  .sidebar-overlay.show { display: block; }
  .content { padding: 18px 14px 30px; }
  .content-card { padding: 26px 20px 42px; border-radius: 18px; }
}

@media (max-width: 680px) {
  .concept-grid,
  .practice-grid { grid-template-columns: 1fr; }
  .content-heading h1 { font-size: 2rem; }
}

@media (max-width: 520px) {
  :root { --topbar-h: 64px; }
  .topbar { padding: 0 14px; }
  .brand-logo { width: 36px; height: 36px; }
  .brand strong { font-size: 0.92rem; }
  .content-card { padding: 22px 16px 36px; }
}

/* ===== 2026-10 合併版：舊站 WebM Hero + 新版 Accordion 教材 ===== */
.sidebar-groups {
  display: none;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 7px;
  padding: 12px 10px 2px;
}

.sidebar-group {
  padding: 9px 8px;
  color: #c9b9ca;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: rgba(255,255,255,.025);
  cursor: pointer;
}

.sidebar-group:hover,
.sidebar-group.active {
  color: #fff7ed;
  border-color: var(--line-strong);
  background: rgba(255, 180, 84, 0.08);
}

.course-hero {
  max-width: 1060px;
  min-height: 228px;
  margin: 0 auto 18px;
  padding: 26px 30px 28px 34px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 230px;
  align-items: center;
  gap: 30px;
  overflow: hidden;
  position: relative;
  border: 1px solid var(--line);
  border-radius: 22px;
  background:
    radial-gradient(circle at 88% 12%, rgba(126,226,189,.14), transparent 35%),
    radial-gradient(circle at 14% 20%, rgba(255,180,84,.12), transparent 36%),
    linear-gradient(135deg, rgba(38,24,49,.96), rgba(25,17,35,.96));
  box-shadow: 0 20px 55px rgba(0,0,0,.24);
}

.course-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .42;
  background-image:
    linear-gradient(rgba(255,180,84,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,180,84,.035) 1px, transparent 1px);
  background-size: 34px 34px;
}

.hero-copy,
.hero-animation { position: relative; z-index: 1; }

.hero-kicker {
  color: var(--mint);
  font-family: Consolas, monospace;
  font-size: .74rem;
  font-weight: 900;
  letter-spacing: .15em;
}

.hero-copy h1 {
  max-width: 680px;
  margin: 11px 0 10px;
  font-size: clamp(1.85rem, 3.3vw, 2.75rem);
  line-height: 1.2;
  letter-spacing: -.035em;
}

.hero-copy p {
  max-width: 690px;
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px 16px;
  margin-top: 18px;
}

.hero-button {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 9px 14px;
  color: var(--text);
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255,255,255,.03);
  transition: .18s;
}

.hero-button.primary {
  color: #27180b;
  font-weight: 900;
  border-color: transparent;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

.hero-button:hover { transform: translateY(-2px); }
.hero-note { color: #a996ac; font-size: .82rem; }

.hero-animation {
  width: 230px;
  justify-self: end;
  pointer-events: none;
}

.hero-animation video {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  object-fit: contain;
  border: 0;
  background: transparent;
}

.site-footer {
  max-width: 1060px;
  margin: 18px auto 0;
  padding: 18px 4px 6px;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  color: #8f7c93;
  font-size: .78rem;
}
.site-footer strong { color: #cdbbd0; }

.screenshot-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 16px;
}
.screenshot-card {
  margin: 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255,255,255,.02);
}
.screenshot-card img {
  display: block;
  max-width: 100%;
  max-height: 360px;
  width: auto;
  height: auto;
  margin: 0 auto;
  border-radius: 8px;
}
.screenshot-card figcaption {
  margin-top: 10px;
  color: var(--muted);
  font-size: .82rem;
  line-height: 1.55;
}

@media (max-width: 980px) {
  .sidebar-groups { display: grid; }
  .course-hero {
    grid-template-columns: minmax(0, 1fr) 185px;
    gap: 18px;
    padding: 24px 24px 25px;
  }
  .hero-animation { width: 185px; }
}

@media (max-width: 680px) {
  .course-hero {
    grid-template-columns: minmax(0, 1fr) 125px;
    align-items: start;
    padding: 20px 18px;
    border-radius: 18px;
  }
  .hero-animation { width: 125px; }
  .hero-copy h1 { font-size: 1.7rem; }
  .hero-copy p { grid-column: 1 / -1; }
  .screenshot-grid { grid-template-columns: 1fr; }
  .site-footer { flex-direction: column; gap: 4px; }
}

@media (max-width: 480px) {
  .course-hero {
    grid-template-columns: minmax(0, 1fr) 96px;
    gap: 8px;
  }
  .hero-animation { width: 96px; }
  .hero-kicker { font-size: .62rem; letter-spacing: .11em; }
  .hero-copy h1 { font-size: 1.48rem; }
}

@media print {
  .topbar, .sidebar, .sidebar-overlay, .hero-animation { display: none !important; }
  .app-shell { display: block; }
  .content { padding: 0; }
  .course-hero, .content-card { max-width: none; box-shadow: none; }
}


/* ===== 00.2 MIT App Inventor 官網首頁導覽 ===== */
.guide-note-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}
.guide-pill {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 5px 10px;
  color: #2a1709;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  font: 900 .7rem/1 Consolas, monospace;
  letter-spacing: .07em;
}
.guide-pill.subtle {
  color: var(--mint);
  border: 1px solid rgba(126,226,189,.2);
  background: rgba(126,226,189,.06);
  font-family: "Microsoft JhengHei", "Noto Sans TC", sans-serif;
  letter-spacing: .02em;
}
.compact-notice { margin-bottom: 0; }

.ai-home-mock {
  margin: 20px 0 18px;
  overflow: hidden;
  border: 1px solid rgba(255,180,84,.24);
  border-radius: 18px;
  background: #130f18;
  box-shadow: 0 18px 45px rgba(0,0,0,.25);
}
.ai-mock-top {
  min-height: 68px;
  padding: 12px 14px;
  display: flex;
  align-items: center;
  gap: 18px;
  border-bottom: 1px solid rgba(255,255,255,.07);
  background: linear-gradient(90deg, #251a2e, #1c1625);
}
.ai-mock-brand {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 9px;
  padding-right: 8px;
}
.ai-mock-logo {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  color: #26180c;
  border-radius: 11px;
  background: linear-gradient(135deg,var(--accent),var(--accent-2));
  font: 900 .82rem/1 Consolas,monospace;
}
.ai-mock-brand div { display: grid; gap: 1px; }
.ai-mock-brand strong { color: var(--accent); font-size: .9rem; }
.ai-mock-brand small { color: #d2c4d3; font-size: .58rem; letter-spacing: .05em; }
.ai-mock-menu-row {
  min-width: 0;
  margin-left: auto;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 7px;
}
.ai-mock-menu {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 34px;
  padding: 7px 9px;
  color: #f9eef7;
  border: 1px solid rgba(255,255,255,.075);
  border-radius: 8px;
  background: rgba(255,255,255,.035);
  font-size: .74rem;
  white-space: nowrap;
}
.ai-mock-menu b,
.ai-zone b {
  width: 20px;
  height: 20px;
  display: inline-grid;
  place-items: center;
  color: #27180b;
  border-radius: 50%;
  background: var(--accent);
  font: 900 .66rem/1 Consolas, monospace;
}
.ai-mock-menu.secondary { color: #cbbdcd; }
.ai-mock-toolbar {
  min-height: 54px;
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid rgba(255,255,255,.07);
  background: rgba(255,255,255,.015);
}
.ai-mock-action,
.ai-mock-trash {
  min-height: 32px;
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  color: #e8dae9;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 7px;
  background: rgba(255,255,255,.025);
  font-size: .72rem;
  white-space: nowrap;
}
.ai-mock-action.primary {
  color: #25160b;
  border-color: transparent;
  background: linear-gradient(135deg,var(--accent),#ffc776);
  font-weight: 900;
}
.ai-mock-action.disabled { color: #776d79; }
.ai-mock-spacer { flex: 1; }
.ai-mock-trash { color: #ffb0b0; background: rgba(255,143,143,.08); }
.ai-mock-listhead {
  min-height: 48px;
  padding: 0 15px;
  display: grid;
  grid-template-columns: minmax(0,1fr) 170px 180px;
  align-items: center;
  gap: 12px;
  color: #d5c9d7;
  font-size: .72rem;
  background: #151019;
}

.ai-zone-grid {
  display: grid;
  grid-template-columns: repeat(4,minmax(0,1fr));
  gap: 10px;
  margin-top: 14px;
}
.ai-zone {
  min-height: 96px;
  padding: 14px;
  display: grid;
  grid-template-columns: 24px minmax(0,1fr);
  grid-template-rows: auto auto;
  column-gap: 8px;
  align-content: start;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: rgba(255,255,255,.022);
}
.ai-zone strong { align-self: center; color: #fff5e9; }
.ai-zone span { grid-column: 1 / -1; margin-top: 9px; color: var(--muted); font-size: .78rem; line-height: 1.55; }

.ai-toolbar-explain {
  display: grid;
  grid-template-columns: repeat(2,minmax(0,1fr));
  gap: 12px;
  margin-top: 16px;
}
.ai-toolbar-explain > div {
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: rgba(255,255,255,.02);
}
.ai-toolbar-explain code {
  display: inline-block;
  margin-bottom: 8px;
  padding: 4px 7px;
  color: #28190c;
  border-radius: 6px;
  background: var(--accent);
  font-weight: 900;
}
.ai-toolbar-explain strong { display: block; color: #fff6e9; }
.ai-toolbar-explain p { margin: 7px 0 0; font-size: .86rem; line-height: 1.65; }

.ai-detail-title {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 18px;
}
.ai-detail-title > div > span {
  color: var(--mint);
  font: 900 .68rem/1 Consolas,monospace;
  letter-spacing: .12em;
}
.ai-detail-title h2 { margin: 7px 0 0; }
.ai-detail-title > p { max-width: 420px; margin: 0; color: var(--muted); font-size: .82rem; line-height: 1.6; }
.ai-menu-grid { display: grid; gap: 16px; }
.ai-menu-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255,255,255,.02);
}
.ai-menu-card-head {
  padding: 16px 18px 13px;
  display: flex;
  align-items: center;
  gap: 11px;
  border-bottom: 1px solid rgba(255,255,255,.055);
  background: linear-gradient(90deg,rgba(255,180,84,.08),transparent 70%);
}
.ai-menu-icon {
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  display: grid;
  place-items: center;
  color: #241609;
  border-radius: 11px;
  background: linear-gradient(135deg,var(--accent),var(--accent-2));
  font-size: 1.05rem;
  font-weight: 900;
}
.ai-menu-card-head h3 { margin: 0; color: #fff8ef; font-size: 1.12rem; }
.ai-menu-card-head span:not(.ai-menu-icon) { display: block; margin-top: 2px; color: var(--mint); font-size: .78rem; }
.ai-menu-desc { margin: 0 !important; padding: 13px 18px; border-bottom: 1px solid rgba(255,255,255,.05); font-size: .86rem; }
.ai-menu-items { display: grid; }
.ai-menu-item {
  padding: 13px 18px 14px;
  display: grid;
  grid-template-columns: minmax(260px,.9fr) minmax(0,1.1fr);
  gap: 16px;
  border-top: 1px solid rgba(255,255,255,.045);
}
.ai-menu-item:first-child { border-top: 0; }
.ai-menu-item-title { min-width: 0; }
.ai-menu-item-title code {
  display: block;
  overflow-wrap: anywhere;
  color: #ffd69d;
  font-size: .79rem;
  line-height: 1.55;
}
.ai-menu-item-title strong { display: block; margin-top: 4px; color: #fff8ef; font-size: .84rem; }
.ai-menu-item p { margin: 0; color: var(--muted); font-size: .82rem; line-height: 1.65; }
.ai-menu-connect .ai-menu-card-head { background: linear-gradient(90deg,rgba(126,226,189,.09),transparent 70%); }
.ai-menu-connect .ai-menu-icon { background: linear-gradient(135deg,var(--mint),#b8f3dd); }
.ai-menu-build .ai-menu-card-head { background: linear-gradient(90deg,rgba(239,145,184,.09),transparent 70%); }
.ai-menu-build .ai-menu-icon { background: linear-gradient(135deg,var(--pink),#ffc3da); }
.ai-menu-settings .ai-menu-card-head { background: linear-gradient(90deg,rgba(157,136,207,.11),transparent 70%); }
.ai-menu-settings .ai-menu-icon { background: linear-gradient(135deg,#aa91dd,#d3c4f3); }
.ai-menu-help .ai-menu-card-head { background: linear-gradient(90deg,rgba(114,179,228,.1),transparent 70%); }
.ai-menu-help .ai-menu-icon { background: linear-gradient(135deg,#80c4ef,#c5e8fb); }

.filetype-grid {
  display: grid;
  grid-template-columns: repeat(3,minmax(0,1fr));
  gap: 12px;
  margin-top: 16px;
}
.filetype-card {
  padding: 17px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255,255,255,.022);
}
.filetype-card > span {
  width: max-content;
  display: block;
  margin-bottom: 11px;
  padding: 6px 9px;
  color: #25160a;
  border-radius: 7px;
  background: var(--accent);
  font: 900 .88rem/1 Consolas,monospace;
}
.filetype-card.apk > span { background: var(--mint); }
.filetype-card.aab > span { background: var(--pink); }
.filetype-card strong { display: block; color: #fff6eb; }
.filetype-card p { margin: 7px 0 0; font-size: .82rem; line-height: 1.65; }
.ai-practice-steps strong { color: #ffe0b0; }

@media (max-width: 900px) {
  .ai-mock-top { align-items: flex-start; flex-direction: column; }
  .ai-mock-menu-row { margin-left: 0; justify-content: flex-start; }
  .ai-zone-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .ai-menu-item { grid-template-columns: 1fr; gap: 7px; }
  .filetype-grid { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  .ai-home-mock { border-radius: 14px; }
  .ai-mock-toolbar { overflow-x: auto; }
  .ai-mock-listhead { grid-template-columns: minmax(140px,1fr) 110px 120px; min-width: 520px; }
  .ai-zone-grid,
  .ai-toolbar-explain { grid-template-columns: 1fr; }
  .ai-detail-title { align-items: flex-start; flex-direction: column; gap: 8px; }
  .ai-menu-card-head { padding: 14px; }
  .ai-menu-desc,
  .ai-menu-item { padding-left: 14px; padding-right: 14px; }
}

/* ===== 00.2 aiStarter / HAXM 教學補充 ===== */
.connection-choice-grid {
  display: grid;
  grid-template-columns: repeat(3,minmax(0,1fr));
  gap: 13px;
  margin: 18px 0;
}
.connection-choice {
  min-height: 170px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: linear-gradient(145deg,rgba(255,180,84,.045),transparent 58%),rgba(255,255,255,.02);
}
.connection-choice.recommended { border-color: rgba(126,226,189,.3); background: linear-gradient(145deg,rgba(126,226,189,.08),transparent 60%),rgba(255,255,255,.02); }
.connection-choice.warning { border-color: rgba(239,145,184,.26); background: linear-gradient(145deg,rgba(239,145,184,.075),transparent 60%),rgba(255,255,255,.02); }
.choice-badge {
  display: inline-flex;
  padding: 5px 8px;
  color: #261708;
  border-radius: 999px;
  background: var(--accent);
  font-size: .66rem;
  font-weight: 900;
  letter-spacing: .04em;
}
.connection-choice.recommended .choice-badge { background: var(--mint); }
.connection-choice.warning .choice-badge { background: var(--pink); }
.connection-choice h3 { margin: 13px 0 7px; color: #fff7eb; }
.connection-choice p { margin: 0; font-size: .84rem; line-height: 1.72; }

.download-panel {
  margin-top: 20px;
  padding: 21px;
  display: grid;
  grid-template-columns: minmax(0,1.25fr) minmax(220px,.75fr);
  gap: 22px;
  align-items: center;
  border: 1px solid rgba(126,226,189,.24);
  border-radius: 16px;
  background: linear-gradient(135deg,rgba(126,226,189,.075),transparent 48%),rgba(15,11,20,.42);
}
.download-kicker { color: var(--mint); font: 900 .66rem/1 Consolas,monospace; letter-spacing: .14em; }
.download-panel h3 { margin: 8px 0 8px; }
.download-panel p { margin: 0; font-size: .84rem; line-height: 1.7; }
.download-panel p code { color: #ffd69d; overflow-wrap: anywhere; }
.download-panel-actions { display: grid; gap: 9px; }
.setup-download-btn {
  padding: 11px 13px;
  color: #fff7ed;
  text-align: center;
  text-decoration: none;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  background: rgba(255,255,255,.025);
  font-size: .82rem;
  font-weight: 800;
  transition: .18s;
}
.setup-download-btn:hover { transform: translateY(-1px); border-color: rgba(255,180,84,.58); background: rgba(255,180,84,.07); }
.setup-download-btn.primary { color: #211407; border-color: transparent; background: linear-gradient(135deg,var(--mint),#b9f3dd); }
.setup-note { margin-top: 16px; }

.log-sample {
  margin: 18px 0;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 14px;
  background: #0d0911;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.015);
  font-family: Consolas,"Courier New",monospace;
}
.log-sample > div {
  padding: 10px 14px;
  display: grid;
  grid-template-columns: minmax(180px,.8fr) minmax(0,1.2fr);
  gap: 12px;
  border-top: 1px solid rgba(255,255,255,.045);
}
.log-sample > div:first-child { border-top: 0; }
.log-sample span { color: #b8aebd; }
.log-sample b { font-weight: 800; }
.log-sample .pass { color: var(--mint); }
.log-sample .fail { color: #ff9b9b; }

.diagnosis-banner {
  margin: 16px 0 18px;
  padding: 14px 16px;
  display: flex;
  gap: 12px;
  align-items: center;
  border-left: 4px solid var(--danger);
  border-radius: 10px;
  background: rgba(255,143,143,.075);
}
.diagnosis-banner span {
  flex: 0 0 auto;
  padding: 4px 7px;
  color: #261010;
  border-radius: 6px;
  background: var(--danger);
  font-size: .68rem;
  font-weight: 900;
}
.diagnosis-banner strong { color: #ffe5e5; font-size: .9rem; }

.diagnosis-grid {
  display: grid;
  grid-template-columns: repeat(2,minmax(0,1fr));
  gap: 12px;
  margin-bottom: 18px;
}
.diagnosis-grid article {
  padding: 17px;
  border: 1px solid rgba(255,143,143,.18);
  border-radius: 14px;
  background: linear-gradient(145deg,rgba(255,143,143,.045),transparent 58%),rgba(255,255,255,.018);
}
.diagnosis-grid code { display: block; margin-bottom: 8px; color: #ffadad; font-size: .82rem; }
.diagnosis-grid strong { display: block; color: #fff5ed; font-size: .92rem; }
.diagnosis-grid p { margin: 7px 0 0; font-size: .82rem; line-height: 1.68; }

.legacy-warning {
  margin: 18px 0 24px;
  padding: 17px 18px;
  display: grid;
  grid-template-columns: max-content minmax(0,1fr);
  gap: 14px;
  align-items: start;
  border: 1px solid rgba(239,145,184,.24);
  border-radius: 14px;
  background: rgba(239,145,184,.055);
}
.legacy-warning > span {
  padding: 5px 8px;
  color: #26121c;
  border-radius: 7px;
  background: var(--pink);
  font-size: .7rem;
  font-weight: 900;
}
.legacy-warning p { margin: 0; font-size: .84rem; line-height: 1.72; }
.troubleshoot-steps strong { color: #ffe0b0; }

.command-pair {
  display: grid;
  grid-template-columns: repeat(2,minmax(0,1fr));
  gap: 12px;
  margin: 17px 0;
}
.command-pair > div {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: rgba(255,255,255,.018);
}
.command-pair span { display: block; margin-bottom: 8px; color: var(--muted); font-size: .76rem; }
.command-pair pre { margin: 0; padding: 13px; border-color: rgba(126,226,189,.18); background: #0d0911; }
.command-pair code { color: var(--mint); font-size: .8rem; }
.danger-note { border-left-color: var(--danger) !important; }
.source-links { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 15px; }
.source-links a {
  padding: 8px 10px;
  color: #ffd69d;
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: rgba(255,180,84,.035);
  font-size: .76rem;
}
.source-links a:hover { border-color: var(--line-strong); background: rgba(255,180,84,.075); }

@media (max-width: 900px) {
  .connection-choice-grid { grid-template-columns: 1fr; }
  .download-panel { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  .diagnosis-grid,
  .command-pair { grid-template-columns: 1fr; }
  .log-sample > div { grid-template-columns: 1fr; gap: 4px; }
  .diagnosis-banner { align-items: flex-start; flex-direction: column; }
  .legacy-warning { grid-template-columns: 1fr; }
}


/* ===== 02.1 基本點餐 ===== */
.order-intro .goal-box strong { color: var(--accent-2); }
.order-step { scroll-margin-top: calc(var(--topbar-h) + 18px); }
.order-step-head {
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.order-step-head > span {
  flex: 0 0 auto;
  padding: 6px 9px;
  color: #261708;
  border-radius: 8px;
  background: linear-gradient(135deg,var(--accent),var(--accent-2));
  font: 900 .68rem/1 Consolas,monospace;
  letter-spacing: .09em;
}
.order-step-head h2 { margin: 0; }
.lesson-figure {
  margin: 20px 0 6px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255,255,255,.025);
}
.lesson-figure img {
  display: block;
  width: auto;
  max-width: 100%;
  max-height: 760px;
  margin: 0 auto;
  object-fit: contain;
  border-radius: 10px;
  background: #fff;
}
.lesson-figure.wide img { width: 100%; max-height: none; }
.lesson-figure figcaption {
  margin-top: 10px;
  color: var(--muted);
  text-align: center;
  font-size: .76rem;
}
.table-wrap { overflow-x: auto; margin: 16px 0 8px; }
.lesson-table {
  width: 100%;
  min-width: 720px;
  border-collapse: separate;
  border-spacing: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255,255,255,.018);
}
.lesson-table th,
.lesson-table td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  border-right: 1px solid rgba(255,255,255,.05);
  border-bottom: 1px solid rgba(255,255,255,.05);
}
.lesson-table th:last-child,
.lesson-table td:last-child { border-right: 0; }
.lesson-table tr:last-child td { border-bottom: 0; }
.lesson-table th {
  color: #2a1808;
  background: linear-gradient(135deg,var(--accent),#ffd9a2);
  font-size: .82rem;
}
.lesson-table td { color: #e8dce8; font-size: .84rem; line-height: 1.62; }
.lesson-table code { color: var(--mint); font-weight: 800; }
.logic-flow {
  margin: 16px 0 6px;
  display: grid;
  gap: 8px;
}
.logic-event {
  padding: 13px 15px;
  color: #1f1308;
  border-radius: 11px;
  background: linear-gradient(135deg,var(--accent),var(--accent-2));
  font-weight: 900;
}
.logic-branch {
  margin-left: 24px;
  padding: 11px 13px;
  border-left: 3px solid var(--mint);
  border-radius: 8px;
  background: rgba(126,226,189,.055);
  color: #e9dee8;
}
.logic-branch b { color: var(--mint); }
.logic-branch span { margin: 0 8px; color: var(--accent); }
.logic-branch code { color: #ffd49a; }
.asset-download-card {
  margin-top: 18px;
  padding: 20px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  color: inherit;
  text-decoration: none;
  border: 1px solid rgba(126,226,189,.28);
  border-radius: 16px;
  background: linear-gradient(135deg,rgba(126,226,189,.10),transparent 58%),rgba(255,255,255,.02);
  transition: .18s;
}
.asset-download-card:hover { transform: translateY(-2px); border-color: rgba(126,226,189,.5); }
.asset-download-card div { min-width: 0; }
.asset-download-card span { color: var(--mint); font: 900 .66rem/1 Consolas,monospace; letter-spacing: .12em; }
.asset-download-card strong { display: block; margin-top: 7px; color: #fff8ef; font-size: 1.06rem; }
.asset-download-card p { margin: 7px 0 0; color: var(--muted); font-size: .8rem; overflow-wrap: anywhere; }
.asset-download-card > b {
  flex: 0 0 auto;
  padding: 10px 12px;
  color: #1f160b;
  border-radius: 10px;
  background: linear-gradient(135deg,var(--mint),#bdf3df);
  font-size: .78rem;
}
.mini-file-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.mini-file-list code {
  padding: 6px 9px;
  color: #ffe1b5;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255,180,84,.045);
  font-size: .75rem;
}
.option-string {
  margin: 14px 0;
  padding: 15px 16px;
  color: var(--mint);
  border: 1px solid rgba(126,226,189,.22);
  border-radius: 11px;
  background: #0d0911;
  font: 800 .94rem/1.6 Consolas,"Courier New",monospace;
  overflow-wrap: anywhere;
}
.source-note {
  margin-top: 12px;
  padding: 11px 13px;
  color: #cbbdcc;
  border-left: 3px solid #9d88cf;
  border-radius: 8px;
  background: rgba(157,136,207,.06);
  font-size: .78rem;
  line-height: 1.65;
}
.block-script {
  margin: 18px 0;
  overflow: hidden;
  border: 1px solid rgba(255,180,84,.18);
  border-radius: 15px;
  background: #0d0911;
}
.bs-event {
  padding: 14px 16px;
  color: #251608;
  background: linear-gradient(135deg,#f0bd58,#ffd48c);
  font-weight: 900;
}
.bs-body { padding: 10px 14px 14px 28px; display: grid; gap: 9px; }
.bs-body > div {
  padding: 10px 12px;
  border-left: 3px solid #7ee2bd;
  border-radius: 8px;
  background: rgba(126,226,189,.045);
  color: #eee4ee;
  line-height: 1.75;
}
.bs-if { color: var(--mint); font-weight: 900; }
.bs-body em { color: #ffd39a; font-style: normal; }
.bs-body code { color: #ffc8df; font-weight: 800; }
.bs-indent { display: inline-block; margin-left: 22px; color: #d4c7d5; }

@media (max-width: 680px) {
  .order-step-head { align-items: flex-start; flex-direction: column; gap: 8px; }
  .asset-download-card { align-items: flex-start; flex-direction: column; }
  .asset-download-card > b { width: 100%; text-align: center; }
  .logic-branch { margin-left: 10px; }
  .bs-body { padding-left: 14px; }
  .bs-indent { margin-left: 10px; }
}