/* ============================================================
   香港擁雪實業有限公司 · 企業官網
   設計系統 / Design System
   風格：簡約大氣 + 科技感
   ============================================================ */

:root {
  /* 主色 */
  --navy-900: #06122b;
  --navy-800: #0a1c3e;
  --navy-700: #0e2750;
  --navy-600: #143666;
  --ink: #10203f;
  --ink-soft: #44506a;
  --muted: #7b8aa6;

  /* 科技感點綴色 */
  --cyan: #1fd1c6;
  --cyan-bright: #2ff0e0;
  --blue: #2f7bff;
  --blue-soft: #5b9bff;
  --accent-grad: linear-gradient(120deg, #1fd1c6 0%, #2f7bff 100%);

  /* 中性 */
  --bg: #f6f8fc;
  --bg-soft: #eef2f9;
  --card: #ffffff;
  --line: #e3e9f3;
  --line-strong: #d2dbea;

  /* 文本 */
  --text: #10203f;
  --text-2: #44506a;
  --text-3: #7b8aa6;
  --on-dark: #eaf1ff;
  --on-dark-soft: #a9bce0;

  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 26px;
  --shadow-sm: 0 2px 10px rgba(16, 32, 63, 0.06);
  --shadow: 0 14px 40px rgba(16, 32, 63, 0.10);
  --shadow-lg: 0 30px 70px rgba(16, 32, 63, 0.16);
  --ring: 0 0 0 4px rgba(47, 123, 255, 0.16);

  --maxw: 1200px;
  --nav-h: 72px;
  --ease: cubic-bezier(.22, .61, .36, 1);

  --font: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB",
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial,
    sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  -webkit-text-size-adjust: 100%;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- 通用排版 ---------- */
.section { padding: 96px 0; }
.section--tight { padding: 64px 0; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--blue);
  margin: 0 0 14px;
}
.eyebrow::before {
  content: "";
  width: 22px; height: 2px;
  background: var(--accent-grad);
  border-radius: 2px;
}

h1, h2, h3, h4 { margin: 0; line-height: 1.2; font-weight: 800; letter-spacing: -0.01em; }
.section-title {
  font-size: clamp(28px, 3.6vw, 44px);
  color: var(--ink);
  margin-bottom: 16px;
}
.section-sub {
  font-size: 17px;
  color: var(--text-2);
  max-width: 660px;
  margin: 0 auto 48px;
}
.text-center { text-align: center; }
.lead { font-size: 18px; color: var(--text-2); }

/* ---------- 按鈕 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent-grad);
  color: #04122b;
  box-shadow: 0 10px 26px rgba(47, 123, 255, .28);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 36px rgba(47, 123, 255, .38); }
.btn-ghost {
  background: rgba(255, 255, 255, .08);
  border-color: rgba(255, 255, 255, .28);
  color: #fff;
}
.btn-ghost:hover { background: rgba(255, 255, 255, .16); }
.btn-outline {
  background: #fff;
  border-color: var(--line-strong);
  color: var(--ink);
}
.btn-outline:hover { border-color: var(--blue); color: var(--blue); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.btn svg { width: 18px; height: 18px; }

/* ---------- 語言切換 ---------- */
.lang-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 44px; height: 38px; padding: 0 12px;
  border-radius: 999px; border: 1px solid var(--line-strong);
  background: #fff; color: var(--ink);
  font-weight: 700; font-size: 14px; letter-spacing: .02em;
  cursor: pointer; transition: border-color .2s, color .2s, box-shadow .2s;
}
.lang-toggle:hover { border-color: var(--blue); color: var(--blue); box-shadow: var(--shadow-sm); }
.lang-toggle:focus-visible { outline: none; box-shadow: var(--ring); }

/* 雙語顯示控制：預設繁體中文，html.lang-en 時切英文 */
.zh { display: inline; }
.en { display: none; }
html.lang-en .zh { display: none; }
html.lang-en .en { display: inline; }
.zh-block { display: block; }
.en-block { display: none; }
html.lang-en .zh-block { display: none; }
html.lang-en .en-block { display: block; }

/* ---------- 導航 ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, .82);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .3s, background .3s;
}
.nav.scrolled { box-shadow: var(--shadow-sm); }
.nav .container { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 11px; font-weight: 800; font-size: 18px; color: var(--ink); }
.brand img { width: 38px; height: 38px; }
.brand small { display: block; font-size: 11px; font-weight: 600; color: var(--text-3); letter-spacing: .04em; }

.nav-links { display: flex; gap: 6px; align-items: center; }
.nav-links a {
  padding: 9px 16px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-2);
  transition: color .2s, background .2s;
}
.nav-links a:hover { color: var(--blue); background: var(--bg-soft); }
.nav-links a.active { color: var(--blue); background: rgba(47, 123, 255, .10); }

.nav-cta { display: flex; align-items: center; gap: 12px; }
.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: #fff;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.nav-toggle span { width: 20px; height: 2px; background: var(--ink); border-radius: 2px; transition: .3s; }

/* ---------- HERO ---------- */
.hero {
  position: relative;
  overflow: hidden;
  color: var(--on-dark);
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(47, 123, 255, .35), transparent 60%),
    radial-gradient(900px 500px at 10% 110%, rgba(31, 209, 198, .25), transparent 55%),
    linear-gradient(160deg, #06122b 0%, #0a1c3e 55%, #0e2750 100%);
}
.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(circle at 50% 30%, #000 30%, transparent 78%);
  -webkit-mask-image: radial-gradient(circle at 50% 30%, #000 30%, transparent 78%);
}
.hero__glow {
  position: absolute;
  width: 520px; height: 520px;
  border-radius: 50%;
  filter: blur(80px);
  background: radial-gradient(circle, rgba(47, 123, 255, .5), transparent 70%);
  top: -120px; right: -80px;
  opacity: .7;
  animation: float 9s ease-in-out infinite;
}
@keyframes float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(30px)} }

.hero .container {
  position: relative;
  z-index: 2;
  padding-top: 92px;
  padding-bottom: 100px;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 56px;
  align-items: center;
}
.hero__badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 14px;
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 999px;
  font-size: 13px; font-weight: 600; letter-spacing: .03em;
  color: #cfe0ff;
  background: rgba(255, 255, 255, .06);
  margin-bottom: 22px;
}
.hero__badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--cyan-bright); box-shadow: 0 0 10px var(--cyan-bright); }
.hero h1 {
  font-size: clamp(34px, 5vw, 60px);
  color: #fff;
  margin-bottom: 18px;
}
.hero h1 .grad {
  background: linear-gradient(120deg, #2ff0e0, #5b9bff);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p.lead { color: var(--on-dark-soft); font-size: 19px; max-width: 540px; margin-bottom: 32px; }
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero__stats { display: flex; gap: 38px; margin-top: 46px; flex-wrap: wrap; }
.hero__stats .num { font-size: 30px; font-weight: 800; color: #fff; }
.hero__stats .num span { color: var(--cyan-bright); }
.hero__stats .lbl { font-size: 13px; color: var(--on-dark-soft); letter-spacing: .04em; }

/* Hero 視覺面板 */
.hero__panel {
  position: relative;
  background: linear-gradient(160deg, rgba(255,255,255,.12), rgba(255,255,255,.04));
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 24px;
  padding: 26px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, .35);
  backdrop-filter: blur(8px);
}
.hero__panel .ph-up { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.hero__panel .ph-up .tag { font-size: 12px; color: #bcd0f5; letter-spacing: .1em; }
.hero__panel .ph-up .live { display: inline-flex; gap: 7px; align-items: center; font-size: 12px; color: #8effe6; }
.hero__panel .ph-up .live i { width: 8px; height: 8px; border-radius: 50%; background: #2ff0e0; box-shadow: 0 0 10px #2ff0e0; animation: pulse 1.6s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.3} }
.socket-art { width: 100%; border-radius: 16px; background: radial-gradient(circle at 50% 38%, #102a55, #0a1c3e); border: 1px solid rgba(255,255,255,.08); }

/* ---------- 信任條 ---------- */
.trust {
  background: #fff;
  border-bottom: 1px solid var(--line);
}
.trust .container { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; padding-top: 24px; padding-bottom: 24px; }
.trust span { color: var(--text-3); font-size: 13px; letter-spacing: .12em; text-transform: uppercase; font-weight: 700; }

/* ---------- 卡片網格 ---------- */
.grid { display: grid; gap: 26px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.feature-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s;
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--line-strong); }
.feature-card .ic {
  width: 54px; height: 54px;
  display: grid; place-items: center;
  border-radius: 14px;
  background: linear-gradient(150deg, rgba(31,209,198,.16), rgba(47,123,255,.16));
  color: var(--blue);
  margin-bottom: 18px;
}
.feature-card .ic svg { width: 26px; height: 26px; }
.feature-card h3 { font-size: 19px; margin-bottom: 10px; color: var(--ink); }
.feature-card p { color: var(--text-2); font-size: 15px; margin: 0; }

/* ---------- 關於/數據帶 ---------- */
.band {
  background: linear-gradient(160deg, #06122b, #0e2750);
  color: var(--on-dark);
  border-radius: var(--radius-lg);
  padding: 64px 56px;
  position: relative;
  overflow: hidden;
}
.band::after {
  content: "";
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(circle at 85% 20%, #000, transparent 70%);
  -webkit-mask-image: radial-gradient(circle at 85% 20%, #000, transparent 70%);
}
.band h2 { color: #fff; font-size: clamp(26px, 3vw, 38px); margin-bottom: 14px; position: relative; }
.band p { color: var(--on-dark-soft); max-width: 620px; position: relative; margin: 0; }
.band__stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: 40px; position: relative; }
.band__stats .num { font-size: 38px; font-weight: 800; background: linear-gradient(120deg, #2ff0e0, #5b9bff); -webkit-background-clip: text; background-clip: text; color: transparent; }
.band__stats .lbl { color: var(--on-dark-soft); font-size: 14px; }

/* 時間線 */
.timeline { display: grid; gap: 0; position: relative; margin-top: 20px; }
.timeline::before { content: ""; position: absolute; left: 14px; top: 6px; bottom: 6px; width: 2px; background: linear-gradient(var(--blue), var(--cyan)); }
.tl-item { position: relative; padding: 0 0 30px 52px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item .dot { position: absolute; left: 7px; top: 4px; width: 16px; height: 16px; border-radius: 50%; background: #fff; border: 4px solid var(--blue); box-shadow: 0 0 0 4px rgba(47,123,255,.12); }
.tl-item .yr { font-weight: 800; color: var(--blue); font-size: 15px; }
.tl-item h4 { font-size: 17px; color: var(--ink); margin: 4px 0 6px; }
.tl-item p { color: var(--text-2); margin: 0; font-size: 15px; }

/* ---------- 產品卡片 ---------- */
.product-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s;
}
.product-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: transparent; }
.product-card__media {
  position: relative;
  aspect-ratio: 4/3;
  background: radial-gradient(circle at 50% 40%, #eaf1ff, #f6f8fc);
  display: grid; place-items: center;
  overflow: hidden;
}
.product-card__media img { width: 66%; transition: transform .4s var(--ease); }
.product-card:hover .product-card__media img { transform: scale(1.06); }
.product-card__tag {
  position: absolute; top: 14px; left: 14px;
  font-size: 12px; font-weight: 700; padding: 5px 11px; border-radius: 999px;
  background: rgba(255,255,255,.9); color: var(--blue); border: 1px solid var(--line);
}
.product-card__body { padding: 22px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.product-card__body h3 { font-size: 19px; color: var(--ink); }
.product-card__desc { color: var(--text-2); font-size: 14px; flex: 1; margin: 0; }
.product-card__specs { display: flex; flex-wrap: wrap; gap: 8px; }
.product-card__specs li {
  font-size: 12px; color: var(--text-2);
  background: var(--bg-soft); border: 1px solid var(--line);
  padding: 4px 10px; border-radius: 8px;
}
.product-card__foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-top: 6px; flex-wrap: wrap; }
.temu-btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 10px 16px; border-radius: 999px;
  font-weight: 700; font-size: 14px;
  background: linear-gradient(120deg, #ff6a3d, #ff3d6e);
  color: #fff; transition: transform .25s var(--ease), box-shadow .25s var(--ease);
  box-shadow: 0 8px 20px rgba(255, 77, 110, .28);
}
.temu-btn:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(255, 77, 110, .4); }
.temu-btn svg { width: 16px; height: 16px; }

/* 產品詳情浮窗（鼠標懸停） */
.product-card { position: relative; }
.product-card__hover {
  position: absolute; inset: 0;
  display: flex; align-items: flex-end;
  padding: 18px;
  background: linear-gradient(0deg, rgba(6,18,43,.9) 0%, rgba(6,18,43,.35) 62%, transparent 100%);
  opacity: 0; transform: translateY(12px);
  transition: opacity .3s var(--ease), transform .3s var(--ease);
  pointer-events: none;
}
.product-card:hover .product-card__hover { opacity: 1; transform: none; pointer-events: auto; }
.product-card__hover-desc { color: #dbe7ff; font-size: 13.5px; line-height: 1.6; margin: 0 0 12px; }
.detail-link {
  display: inline-flex; align-items: center; gap: 7px;
  font-weight: 700; font-size: 14px; color: #fff;
  background: rgba(255,255,255,.16); border: 1px solid rgba(255,255,255,.34);
  padding: 9px 16px; border-radius: 999px;
  transition: background .2s, transform .2s;
}
.detail-link:hover { background: rgba(255,255,255,.32); transform: translateY(-1px); }
.detail-link svg { width: 16px; height: 16px; }

/* 產品頁腳：移除價格後讓購買按鈕撐滿 */
.product-card__foot { display: flex; align-items: center; justify-content: stretch; gap: 12px; padding-top: 6px; flex-wrap: wrap; }
.product-card__foot .temu-btn { flex: 1 1 auto; justify-content: center; }

/* 詳情頁 */
.back-link { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; color: var(--text-2); margin-bottom: 26px; }
.back-link:hover { color: var(--blue); }
.back-link svg { width: 18px; height: 18px; }
.detail-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 48px; align-items: start; }
.detail-media {
  position: relative; background: radial-gradient(circle at 50% 40%, #eaf1ff, #f6f8fc);
  border: 1px solid var(--line); border-radius: var(--radius); padding: 40px;
  display: grid; place-items: center;
}
.detail-media img { width: 72%; }
.detail-tag {
  position: absolute; top: 16px; left: 16px; font-size: 12px; font-weight: 700;
  padding: 5px 11px; border-radius: 999px; background: #fff; color: var(--blue); border: 1px solid var(--line);
}
.detail-specs { display: flex; flex-wrap: wrap; gap: 10px; margin: 0 0 26px; }
.detail-specs li { font-size: 13px; color: var(--text-2); background: var(--bg-soft); border: 1px solid var(--line); padding: 6px 12px; border-radius: 8px; }
.detail-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* 觸控 / 小屏：詳情浮窗常駐顯示，確保可點擊（仍浮於圖片上，避免被裁切） */
@media (hover: none), (max-width: 720px) {
  .product-card__hover {
    opacity: 1; transform: none; pointer-events: auto;
    background: linear-gradient(0deg, rgba(6,18,43,.92) 0%, rgba(6,18,43,.5) 55%, transparent 100%);
  }
  .product-card__hover-desc { display: none; }
  .detail-link { color: var(--blue); background: rgba(47,123,255,.08); border-color: var(--line-strong); }
  .detail-link:hover { background: rgba(47,123,255,.14); }
  .detail-grid { grid-template-columns: 1fr; gap: 28px; }
  .detail-media { padding: 28px; }
}

/* 產品篩選條 */
.filter-bar {
  display: flex; flex-wrap: wrap; gap: 10px; justify-content: center;
  margin-bottom: 40px;
}
.filter-bar button {
  padding: 9px 20px; border-radius: 999px; cursor: pointer;
  font-size: 14px; font-weight: 600; font-family: inherit;
  border: 1px solid var(--line-strong); background: #fff; color: var(--text-2);
  transition: all .2s var(--ease);
}
.filter-bar button:hover { border-color: var(--blue); color: var(--blue); }
.filter-bar button.active {
  background: var(--accent-grad); color: #04122b; border-color: transparent;
  box-shadow: 0 8px 20px rgba(47,123,255,.25);
}

/* 產品頁頭 */
.page-hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(900px 500px at 85% -20%, rgba(47,123,255,.3), transparent 60%),
    linear-gradient(160deg, #06122b, #0e2750);
  color: var(--on-dark);
}
.page-hero .container { padding: 84px 24px 78px; position: relative; z-index: 2; }
.page-hero .eyebrow { color: var(--cyan-bright); }
.page-hero__grid {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(circle at 70% 20%, #000, transparent 75%);
  -webkit-mask-image: radial-gradient(circle at 70% 20%, #000, transparent 75%);
}

/* ---------- 聯繫 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 40px; align-items: start; }
.info-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; box-shadow: var(--shadow-sm); }
.info-list { display: grid; gap: 4px; }
.info-list li { display: flex; gap: 16px; padding: 18px 14px; border-radius: 12px; transition: background .2s; }
.info-list li:hover { background: var(--bg-soft); }
.info-list .ic { flex: 0 0 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; background: linear-gradient(150deg, rgba(31,209,198,.16), rgba(47,123,255,.16)); color: var(--blue); }
.info-list .ic svg { width: 22px; height: 22px; }
.info-list .k { font-size: 13px; color: var(--text-3); letter-spacing: .04em; }
.info-list .v { font-size: 16px; font-weight: 700; color: var(--ink); }
.info-list .v a:hover { color: var(--blue); }

.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 14px; font-weight: 600; color: var(--text-2); margin-bottom: 7px; }
.field input, .field textarea {
  width: 100%; padding: 13px 15px; font-size: 15px; font-family: inherit;
  border: 1px solid var(--line-strong); border-radius: var(--radius-sm); background: #fbfcfe;
  color: var(--text); transition: border-color .2s, box-shadow .2s;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--blue); box-shadow: var(--ring); background: #fff; }
.field textarea { resize: vertical; min-height: 120px; }
.form-note { font-size: 13px; color: var(--text-3); margin-top: 4px; }

/* ---------- 頁腳 ---------- */
.footer {
  background: linear-gradient(160deg, #06122b, #0a1c3e);
  color: var(--on-dark-soft);
  padding: 64px 0 28px;
}
.footer__top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 36px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,.1); }
.footer .brand { color: #fff; margin-bottom: 16px; }
.footer p { font-size: 14px; max-width: 300px; }
.footer h5 { color: #fff; font-size: 15px; margin: 4px 0 16px; }
.footer ul li { margin-bottom: 10px; }
.footer ul a { font-size: 14px; color: var(--on-dark-soft); transition: color .2s; }
.footer ul a:hover { color: var(--cyan-bright); }
.footer__bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; padding-top: 22px; font-size: 13px; }
.admin-link a { color: var(--text-3); font-size: 12px; text-decoration: none; opacity: .8; }
.admin-link a:hover { color: var(--blue); opacity: 1; }

/* ---------- 滾動揭示動畫 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- 響應式 ---------- */
@media (max-width: 980px) {
  .hero .container { grid-template-columns: 1fr; gap: 40px; padding-top: 70px; }
  .hero__panel { max-width: 460px; }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .band { padding: 44px 32px; }
  .band__stats { grid-template-columns: 1fr; gap: 18px; }
  .footer__top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .section { padding: 64px 0; }
  .nav-links, .nav-cta .btn-outline { display: none; }
  .nav-toggle { display: flex; }
  .nav.open .nav-links {
    display: flex; flex-direction: column; align-items: stretch; gap: 4px;
    position: absolute; top: var(--nav-h); left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--line); padding: 12px 24px 20px;
    box-shadow: var(--shadow);
  }
  .nav.open .nav-links a { padding: 12px 14px; }
  .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .hero__stats { gap: 24px; }
  .footer__top { grid-template-columns: 1fr; }
  .band { padding: 36px 22px; }
}

/* 超小屏（手機）精修 */
@media (max-width: 480px) {
  .container { padding: 0 18px; }
  .section { padding: 48px 0; }
  .section--tight { padding: 40px 0; }
  .hero .container { padding-top: 52px; padding-bottom: 60px; }
  .hero h1 { font-size: clamp(27px, 8vw, 38px); }
  .hero p.lead { font-size: 16px; }
  .hero__stats { gap: 16px 26px; }
  .hero__stats .num { font-size: 25px; }
  .section-title { font-size: clamp(23px, 6.6vw, 30px); }
  .section-sub { font-size: 15px; margin-bottom: 32px; }
  .brand small { display: none; }
  .feature-card { padding: 22px; }
  .band { padding: 28px 18px; }
  .band h2 { font-size: 24px; }
  .band__stats .num { font-size: 30px; }
  .product-card__body { padding: 18px; }
  .product-card__body h3 { font-size: 17px; }
  .product-card__foot { gap: 10px; }
  .temu-btn { flex: 1 1 auto; justify-content: center; }
  .form-card { padding: 22px; }
  .info-list li { padding: 14px 10px; }
  .info-list .ic { flex-basis: 42px; height: 42px; }
  .footer__top { gap: 26px; }
  .footer__bottom { font-size: 12px; }
  .trust .container { gap: 14px 20px; }
  .trust span { font-size: 11px; }
  .nav .container { gap: 12px; }
}