/* 手機版一頁式導購 — Double Power 7+1 ComBIO */
:root {
  --purple: #7b4397;
  --purple-deep: #5a2f75;
  --purple-soft: #f5f0ff;
  --white: #ffffff;
  --shadow: 0 8px 28px rgba(91, 47, 117, 0.12);
  --maxw: 430px;
  --cta-h: 56px;
  --font-sans: "Noto Sans TC", system-ui, -apple-system, "Segoe UI", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background: linear-gradient(180deg, #efe6f8 0%, #faf8fc 40%, #fff 100%);
  color: #333;
  -webkit-font-smoothing: antialiased;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.skip-link:focus {
  left: 12px;
  top: 12px;
  width: auto;
  height: auto;
  padding: 8px 12px;
  background: var(--purple);
  color: #fff;
  border-radius: 8px;
  z-index: 200;
}

.page-shell {
  max-width: var(--maxw);
  margin: 0 auto;
  min-height: 100dvh;
  padding-bottom: calc(var(--cta-h) + env(safe-area-inset-bottom, 0) + 16px);
}

.screen {
  display: block;
  width: 100%;
  height: auto;
  vertical-align: middle;
}

.screen-wrap {
  margin: 0;
  line-height: 0;
}

.screen-wrap figcaption {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.anchor {
  scroll-margin-top: 12px;
}

.sticky-cta {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 100;
  display: flex;
  justify-content: center;
  padding: 10px 12px calc(10px + env(safe-area-inset-bottom, 0));
  background: linear-gradient(180deg, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.92) 28%, #fff 100%);
  pointer-events: none;
}

.sticky-cta-inner {
  pointer-events: auto;
  width: 100%;
  max-width: var(--maxw);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.btn-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 14px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  letter-spacing: 0.02em;
  border: 2px solid transparent;
  box-shadow: var(--shadow);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn-cta:active {
  transform: scale(0.98);
}

.btn-cta--primary {
  background: var(--purple);
  color: var(--white);
}

.btn-cta--primary:hover {
  background: var(--purple-deep);
}

.btn-cta--ghost {
  background: var(--white);
  color: var(--purple);
  border-color: rgba(123, 67, 151, 0.45);
}

.btn-cta--ghost:hover {
  border-color: var(--purple);
}

.btn-cta .arrow {
  display: inline-flex;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  line-height: 1;
}

.btn-cta--primary .arrow {
  background: rgba(255, 255, 255, 0.2);
}

.btn-cta--ghost .arrow {
  background: rgba(123, 67, 151, 0.12);
}

.footer-note {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 16px 8px;
  font-size: 0.72rem;
  color: #666;
  line-height: 1.5;
  text-align: center;
}