/* ============================================================
   海外儲值平台・著陸頁
   主色：#5859F3 | 簡約風格（台灣）| 響應式
   ============================================================ */

:root {
  --primary: #5859F3;
  --primary-dark: #4343D6;
  --primary-light: #6A6BF5;
  --primary-soft: rgba(88, 89, 243, 0.08);
  --primary-border: rgba(88, 89, 243, 0.22);
  --ink: #1F2340;
  --text: #4A4F6E;
  --text-light: #8A8FA8;
  --bg: #FFFFFF;
  --bg-soft: #F7F8FE;
  --line: #EAEBF4;
  --grad: linear-gradient(135deg, #5859F3 0%, #7B6CF6 55%, #9A7BFA 100%);
  --shadow-sm: 0 4px 14px rgba(31, 35, 64, 0.06);
  --shadow-md: 0 12px 32px rgba(88, 89, 243, 0.14);
  --radius: 16px;
  --container: 1200px;
  --header-h: 72px;
  --font: 'Noto Sans TC', 'Microsoft JhengHei', 'PingFang TC', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

.container {
  width: min(var(--container), 92%);
  margin: 0 auto;
}
.container-narrow { max-width: var(--container); }
.container-faq { max-width: var(--container); }

/* ================= 按鈕 ================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 999px;
  font-family: var(--font);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.3px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, color 0.25s ease;
  white-space: nowrap;
}
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 8px 24px rgba(88,89,243,0.32); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 12px 30px rgba(88,89,243,0.4); }
.btn-ghost { background: rgba(255,255,255,0.14); color: #fff; border-color: rgba(255,255,255,0.5); }
.btn-ghost:hover { background: rgba(255,255,255,0.24); transform: translateY(-2px); }
.btn-light { background: #fff; color: var(--primary); box-shadow: 0 8px 24px rgba(0,0,0,0.18); }
.btn-light:hover { background: var(--primary-soft); transform: translateY(-2px); }
.btn-outline-light { background: transparent; color: #fff; border-color: rgba(255,255,255,0.55); }
.btn-outline-light:hover { background: rgba(255,255,255,0.16); transform: translateY(-2px); }

/* ================= Header ================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: box-shadow 0.3s ease, border-color 0.3s ease;
}
.site-header.scrolled {
  box-shadow: 0 6px 24px rgba(31, 35, 64, 0.08);
  border-bottom-color: var(--line);
}
.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand-logo {
  width: 38px; height: 38px;
  border-radius: 12px;
  background: var(--grad);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 14px rgba(88,89,243,0.35);
  flex-shrink: 0;
}
.brand-text { font-size: 21px; font-weight: 900; color: var(--ink); letter-spacing: 0.5px; }
.brand-text em { font-style: normal; color: var(--primary); }

.main-nav { display: flex; align-items: center; gap: 6px; }
.main-nav a {
  padding: 8px 14px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  transition: color 0.2s ease, background 0.2s ease;
}
.main-nav a:hover { color: var(--primary); background: var(--primary-soft); }
.main-nav .nav-cta {
  margin-left: 8px;
  padding: 10px 22px;
  background: var(--primary);
  color: #fff !important;
  border-radius: 999px;
  font-weight: 700;
  box-shadow: 0 6px 16px rgba(88,89,243,0.3);
}
.main-nav .nav-cta:hover { background: var(--primary-dark); transform: translateY(-1px); }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px; height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  border-radius: 10px;
  padding: 10px;
}
.nav-toggle span {
  display: block;
  height: 2.6px;
  border-radius: 3px;
  background: var(--ink);
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7.6px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7.6px) rotate(-45deg); }

/* ================= Banner ================= */
.banner {
  position: relative;
  background: var(--grad);
  color: #fff;
  padding: 90px 0 100px;
  overflow: hidden;
}
.banner-bg .bubble {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  animation: float 9s ease-in-out infinite;
}
.bubble.b1 { width: 420px; height: 420px; top: -140px; right: -80px; }
.bubble.b2 { width: 260px; height: 260px; bottom: -90px; left: -60px; animation-delay: 1.6s; }
.bubble.b3 { width: 120px; height: 120px; top: 60px; left: 8%; animation-delay: 3s; }
.bubble.b4 { width: 70px; height: 70px; bottom: 120px; right: 16%; animation-delay: 4.4s; }
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-18px); }
}

.banner-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 40px;
}
.banner-tag {
  display: inline-block;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.28);
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 1px;
  margin-bottom: 22px;
}
.banner-title {
  font-size: clamp(30px, 4.2vw, 48px);
  font-weight: 900;
  line-height: 1.3;
  letter-spacing: 0.5px;
  margin-bottom: 20px;
  color: #fff;
}

.banner-title-sub {
  display: block;
  font-size: clamp(18px, 2.6vw, 30px);
  font-weight: 700;
  color: rgba(255, 255, 255, 0.92);
  margin-top: 8px;
}
.banner-sub {
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 32px;
}
.banner-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 34px; }
.banner-actions .btn { height: 40px; padding: 0 30px; }
.banner-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.92);
}
.banner-points li { position: relative; padding-left: 22px; }
.banner-points li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  width: 16px; height: 16px;
  background: rgba(255, 255, 255, 0.24);
  border-radius: 50%;
  font-size: 11px;
  line-height: 16px;
  text-align: center;
}

/* Banner 視覺卡 */
.banner-visual { position: relative; display: flex; justify-content: center; padding: 20px 0; }
.phone-card {
  width: min(340px, 88%);
  background: #fff;
  border-radius: 22px;
  padding: 22px;
  color: var(--ink);
  box-shadow: 0 30px 60px rgba(20, 15, 80, 0.35);
  transform: rotate(2deg);
  animation: cardIn 0.9s ease both;
}
@keyframes cardIn {
  from { opacity: 0; transform: rotate(2deg) translateY(30px); }
  to { opacity: 1; transform: rotate(2deg) translateY(0); }
}
.phone-top { display: flex; gap: 6px; margin-bottom: 16px; }
.phone-top .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--line); }
.phone-top .dot:nth-child(1) { background: #FF5F57; }
.phone-top .dot:nth-child(2) { background: #FEBC2E; }
.phone-top .dot:nth-child(3) { background: #28C840; }
.phone-title { font-size: 13px; font-weight: 700; color: var(--text-light); margin-bottom: 14px; letter-spacing: 0.5px; }
.phone-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.phone-row .chip {
  --c: #5859F3;
  background: rgba(88, 89, 243, 0.12);
  background: color-mix(in srgb, var(--c) 12%, #fff);
  color: var(--c);
  border: 1px solid var(--primary-border);
  border-color: color-mix(in srgb, var(--c) 32%, #fff);
  font-size: 12.5px;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 999px;
}
.phone-amount { display: flex; align-items: baseline; gap: 8px; margin-bottom: 18px; }
.phone-amount .amount { font-size: 34px; font-weight: 900; color: var(--primary); }
.phone-amount .unit { font-size: 13px; color: var(--text-light); }
.phone-btn {
  background: var(--grad);
  color: #fff;
  text-align: center;
  font-weight: 700;
  padding: 12px;
  border-radius: 12px;
  font-size: 15px;
  letter-spacing: 1px;
  box-shadow: 0 8px 20px rgba(88,89,243,0.35);
}
.ok-badge {
  position: absolute;
  right: -8px;
  top: -18px;
  background: #22C55E;
  color: #fff;
  font-size: 12.5px;
  font-weight: 700;
  padding: 9px 14px;
  border-radius: 12px;
  box-shadow: 0 10px 24px rgba(34, 197, 94, 0.4);
  line-height: 1.45;
  animation: float 5s ease-in-out infinite;
}
.float-coin {
  position: absolute;
  width: 56px; height: 56px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.16);
  border: 1.5px solid rgba(255, 255, 255, 0.4);
  color: #fff;
  font-size: 24px;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
  animation: float 6s ease-in-out infinite;
}
.float-coin.c1 { top: 6%; left: 2%; animation-delay: 0.8s; }
.float-coin.c2 { bottom: 10%; right: 4%; animation-delay: 2.2s; }

/* ================= Section 通用 ================= */
.section { padding: 88px 0; }
.section-alt { background: var(--bg-soft); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 52px; }
.section-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--primary);
  background: var(--primary-soft);
  border-radius: 999px;
  padding: 5px 16px;
  margin-bottom: 14px;
}
.section-title {
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 900;
  color: var(--ink);
  letter-spacing: 0.5px;
  line-height: 1.35;
  margin-bottom: 12px;
}
.section-desc { font-size: 16px; color: var(--text-light); }

/* ================= 優勢 ================= */
.adv-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 22px;
}
.adv-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 26px;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  text-align: center;
}
.adv-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-border);
}
.adv-icon {
  width: 54px; height: 54px;
  border-radius: 14px;
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  transition: background 0.3s ease, color 0.3s ease;
  margin: 0 auto;
}
.adv-icon svg { width: 26px; height: 26px; }
.adv-card:hover .adv-icon { background: var(--primary); color: #fff; }
.adv-card h3 { font-size: 18px; font-weight: 700; color: var(--ink); margin-bottom: 8px; }
.adv-card p { font-size: 14.5px; color: var(--text-light); line-height: 1.75; }

/* ================= 商品 ================= */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(255px, 1fr));
  gap: 24px;
}
.product-card {
  position: relative;
  text-decoration: none;
  color: inherit;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 28px 22px 26px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-border);
}
.product-img {
  width: 132px; height: 132px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 6px auto 16px;
}
.product-img img { width: 128px; height: 128px; transition: transform 0.35s ease; }
.product-card:hover .product-img img { transform: scale(1.07) rotate(-3deg); }
.product-name { font-size: 19px; font-weight: 700; color: var(--ink); margin-bottom: 8px; }
.product-desc { font-size: 13.5px; color: var(--text-light); line-height: 1.7; margin-bottom: 16px; min-height: 46px; }
.product-price { font-size: 30px; font-weight: 900; color: var(--primary); margin-bottom: 18px; line-height: 1; }
.product-price .cur { font-size: 16px; font-weight: 700; margin-right: 2px; }
.product-price small { font-size: 14px; font-weight: 500; color: var(--text-light); }
.btn-buy {
  width: 100%;
  padding: 12px;
  background: var(--primary-soft);
  color: var(--primary);
  border: 1.5px solid var(--primary-border);
  font-size: 15px;
}
.product-card:hover .btn-buy { background: var(--primary); color: #fff; box-shadow: 0 8px 20px rgba(88,89,243,0.32); }

/* 商品卡整卡即為連結（<a class="product-card">），點擊任意位置皆可跳轉 */
.product-card:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: -2px;
}

/* Tips 標籤 */
.tip {
  position: absolute;
  top: 14px;
  left: -6px;
  font-size: 12px;
  font-weight: 700;
  color: #fff;
  padding: 5px 12px;
  border-radius: 6px 10px 10px 6px;
  letter-spacing: 0.4px;
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.14);
  z-index: 2;
}
.tip::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  border-left: 6px solid rgba(0, 0, 0, 0.22);
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  border-right: 6px solid transparent;
}
.tip-hot { background: linear-gradient(135deg, #FF5F57, #FE7A66); }
.tip-new { background: linear-gradient(135deg, #22C55E, #4ADE80); }
.tip-off { background: linear-gradient(135deg, #F59E0B, #FBBF24); }
.tip-login { background: linear-gradient(135deg, #FF2442, #FF6B81); }
.tip-sale { background: linear-gradient(135deg, #5859F3, #7B6CF6); }
.tip-daily { background: linear-gradient(135deg, #3B4CBF, #6C7BFF); }
.tip-audio { background: linear-gradient(135deg, #FF9A3C, #FFC24D); }
.tip-live { background: linear-gradient(135deg, #FF3D5A, #FF7A5C); }
.tip-apple { background: linear-gradient(135deg, #2F3237, #5B5F66); }
.tip-gem { background: linear-gradient(135deg, #8E5BFF, #C79BFF); }
.tip-gold { background: linear-gradient(135deg, #E8A33D, #F5C873); }
.tip-star { background: linear-gradient(135deg, #4A3FD6, #9B7BFF); }

.products-note { text-align: center; font-size: 13.5px; color: var(--text-light); margin-top: 34px; }

/* ================= FAQ ================= */
.faq-notice {
  background: var(--primary-soft);
  border: 1px solid var(--primary-border);
  color: var(--ink);
  border-radius: 12px;
  padding: 16px 20px;
  font-size: 14.5px;
  line-height: 1.8;
  margin-bottom: 22px;
}
.faq-notice strong { color: var(--primary); }
.faq-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  align-items: start;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  transition: box-shadow 0.3s ease, border-color 0.3s ease;
}
.faq-item:hover { border-color: var(--primary-border); }
.faq-item[open] { box-shadow: var(--shadow-sm); border-color: var(--primary-border); }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 19px 22px;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.6;
  user-select: none;
}

.faq-item summary h2 {
  font-size: inherit;
  font-weight: inherit;
  color: inherit;
  line-height: inherit;
  margin: 0;
}
.faq-item summary::-webkit-details-marker { display: none; }
.chev {
  flex-shrink: 0;
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--primary-soft);
  position: relative;
  transition: transform 0.3s ease, background 0.3s ease;
}
.chev::before,
.chev::after {
  content: '';
  position: absolute;
  background: var(--primary);
  border-radius: 2px;
}
.chev::before { width: 10px; height: 2px; left: 8px; top: 12px; }
.chev::after { width: 2px; height: 10px; left: 12px; top: 8px; }
.faq-item[open] .chev { transform: rotate(45deg); background: var(--primary); }
.faq-item[open] .chev::before, .faq-item[open] .chev::after { background: #fff; }

.faq-answer { padding: 0 22px 20px; }
.faq-answer p { font-size: 14.5px; color: var(--text); line-height: 1.9; }

/* ================= CTA ================= */
.cta {
  background: var(--grad);
  color: #fff;
  padding: 70px 0;
  position: relative;
  overflow: hidden;
}
.cta::before {
  content: '';
  position: absolute;
  width: 340px; height: 340px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  top: -160px; right: -90px;
}
.cta-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
}
.cta-copy h2 { font-size: clamp(24px, 2.8vw, 34px); font-weight: 900; margin-bottom: 10px; }
.cta-copy p { color: rgba(255, 255, 255, 0.88); font-size: 15.5px; line-height: 1.8; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ================= Footer ================= */
.site-footer { background: #171936; color: #A6A9C8; }
.footer-inner {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding: 60px 0 44px;
}
.brand-light .brand-text { color: #fff; }
.footer-brand p { font-size: 13.5px; line-height: 1.9; margin-top: 16px; max-width: 300px; }
.footer-title { font-size: 14px; font-weight: 700; color: #fff; letter-spacing: 1px; margin-bottom: 18px; }
.footer-nav { display: flex; flex-direction: column; gap: 10px; }
.footer-nav a { font-size: 14px; transition: color 0.2s ease; }
.footer-nav a:hover { color: #fff; }
.footer-hours { font-size: 13px; line-height: 1.9; margin-top: 6px; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.09);
  padding: 20px 0;
}
.footer-bottom p { font-size: 12.5px; line-height: 1.8; text-align: center; color: #7C7FA0; }

/* ================= 返回頂部 / Toast ================= */
.back-top {
  position: fixed;
  right: 22px;
  bottom: 26px;
  width: 46px; height: 46px;
  border-radius: 50%;
  border: none;
  background: var(--primary);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 26px rgba(88, 89, 243, 0.4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(14px);
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease, background 0.3s ease;
  z-index: 90;
}
.back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top:hover { background: var(--primary-dark); }

.toast {
  position: fixed;
  left: 50%;
  bottom: 30px;
  transform: translateX(-50%) translateY(20px);
  background: var(--ink);
  color: #fff;
  font-size: 14.5px;
  font-weight: 500;
  padding: 14px 26px;
  border-radius: 12px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.25);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, transform 0.35s ease, visibility 0.35s ease;
  z-index: 120;
  max-width: 86vw;
  text-align: center;
  line-height: 1.7;
}
.toast.show { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }

/* ================= 響應式 ================= */
@media (max-width: 992px) {
  .banner { padding: 70px 0 80px; }
  .banner-inner { grid-template-columns: 1fr; gap: 30px; }
  .banner-visual { order: -1; padding: 0; }
  .phone-card { width: min(300px, 80%); }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 34px; }
}

@media (max-width: 768px) {
  :root { --header-h: 62px; }
  .section { padding: 44px 0; }

  /* 行動選單 */
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 20px 40px rgba(31, 35, 64, 0.12);
    padding: 12px 16px 20px;
    gap: 4px;
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.35s ease, opacity 0.35s ease, visibility 0.35s ease;
  }
  .main-nav.open { transform: translateY(0); opacity: 1; visibility: visible; }
  .main-nav a { padding: 13px 14px; font-size: 16px; border-radius: 12px; }
  .main-nav .nav-cta { margin: 8px 0 0; text-align: center; }

  .banner { padding: 48px 0 52px; }
  .banner-title br.br-lg { display: none; }
  .banner-actions .btn { flex: 1; min-width: 150px; }
  .br-md { display: none; }

  .adv-grid { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
  .faq-list { grid-template-columns: 1fr; }

  .cta-inner { flex-direction: column; align-items: flex-start; }
  .cta-actions .btn { flex: 1; min-width: 160px; }
}

@media (max-width: 576px) {
  .container { width: 90%; }
  .section { padding: 34px 0; }
  .banner { padding: 38px 0 42px; }
  .cta { padding: 44px 0; }
  .banner-title { font-size: 27px; }
  .banner-points { gap: 8px 18px; font-size: 13px; }
  .adv-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .adv-card { padding: 18px 14px; }
  .adv-icon { width: 42px; height: 42px; border-radius: 12px; margin-bottom: 10px; }
  .adv-icon svg { width: 21px; height: 21px; }
  .adv-card h3 { font-size: 15px; margin-bottom: 6px; }
  .adv-card p { font-size: 12.5px; line-height: 1.6; }
  .footer-inner { grid-template-columns: 1fr; gap: 28px; padding: 46px 0 36px; }
  .faq-item summary { font-size: 14.5px; padding: 16px 18px; }
  .faq-answer { padding: 0 18px 18px; }
  .toast { bottom: 20px; font-size: 13.5px; }
}

/* ===== 手機端：一行 2 個商品 ===== */
@media (max-width: 576px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .product-card { padding: 16px 12px 14px; border-radius: 16px; }
  .product-img { width: 88px; height: 88px; margin: 6px auto 10px; }
  .product-img img { width: 84px; height: 84px; }
  .product-name { font-size: 15px; line-height: 1.4; margin-bottom: 8px; min-height: 42px; display: flex; align-items: center; justify-content: center; }
  .product-desc { display: none; }
  .product-price { font-size: 20px; margin-bottom: 10px; }
  .product-price .cur { font-size: 12px; }
  .product-price small { font-size: 11px; }
  .btn-buy { padding: 10px 6px; font-size: 13.5px; white-space: nowrap; }
  .tip {
    font-size: 9px;
    padding: 3px 7px;
    left: -4px;
    top: 10px;
    max-width: calc(100% - 6px);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    letter-spacing: 0;
  }
}

/* 縮放減弱動畫（無障礙） */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}