/* ════════════════════════════════════════════════════════
   GymTimeSlots Landing — styles.css
   Design tokens / 時段格 motif / 元件 / 動畫
   依設計系統：docs/04-設計/2026-06-14-1300-Landing設計系統與建置藍圖.md
   品牌覆寫：柚子吉祥物系統（mascot / hero-mascot / favicon）
   ════════════════════════════════════════════════════════ */

/* ════════════════════════════════════════════════════════
   DESIGN TOKENS（source of truth：設計系統第 2、3 節）
   ════════════════════════════════════════════════════════ */
:root {
  /* ── 品牌主色（鎖定）── */
  --brand-blue: #3B6CF6;
  --brand-cyan: #22D3EE;
  --grad-from: #5B8DEF;
  --grad-to: #22D3EE;

  /* ── 深色表面階 ── */
  --bg-base: #0A0E17;
  --surface-1: #0E1320;
  --surface-2: #131A2A;
  --surface-3: #1A2336;
  --surface-glass: rgba(19, 26, 42, 0.62);

  /* ── 邊框／分隔線 ── */
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-default: rgba(255, 255, 255, 0.10);
  --border-strong: rgba(255, 255, 255, 0.16);
  --border-brand: rgba(59, 108, 246, 0.45);

  /* ── 格線（時段格紋）── */
  --grid-line: rgba(255, 255, 255, 0.035);
  --grid-line-strong: rgba(91, 141, 239, 0.10);

  /* ── 文字階 ── */
  --text-primary: #F5F7FA;
  --text-secondary: #9AA4B2;
  --text-tertiary: #5B6577;
  --text-on-brand: #07111F;

  /* ── 發光／光暈 ── */
  --glow-blue: rgba(59, 108, 246, 0.45);
  --glow-cyan: rgba(34, 211, 238, 0.40);

  /* ── 漸層 ── */
  --gradient-brand: linear-gradient(135deg, var(--grad-from) 0%, var(--grad-to) 100%);
  --gradient-text: linear-gradient(100deg, #FFFFFF 0%, #C9D8FF 40%, var(--brand-cyan) 100%);
  --gradient-hairline: linear-gradient(90deg, transparent, var(--border-brand), transparent);
  --gradient-veil: linear-gradient(180deg, rgba(10,14,23,0.55) 0%, rgba(10,14,23,0.86) 60%, var(--bg-base) 100%);

  /* ── 字級 scale ── */
  --fs-eyebrow: 0.8125rem;
  --fs-body-sm: 0.9375rem;
  --fs-body: 1.0625rem;
  --fs-body-lg: 1.1875rem;
  --fs-h3: 1.5rem;
  --fs-h2: 2.25rem;
  --fs-h1: 3.75rem;
  --fs-display: 4.5rem;
  --fs-h1-fluid: clamp(2.375rem, 1.4rem + 4.2vw, 3.75rem);
  --fs-h2-fluid: clamp(1.75rem, 1.3rem + 1.9vw, 2.25rem);

  /* ── 行高 / 字距 ── */
  --lh-tight: 1.12;
  --lh-snug: 1.35;
  --lh-body: 1.7;
  --tracking-eyebrow: 0.22em;
  --tracking-tight: -0.02em;

  /* ── 間距 scale ── */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --space-10: 128px;
  --section-pad-y: clamp(64px, 8vw, 128px);
  --container-max: 1200px;
  --container-pad: clamp(20px, 5vw, 48px);

  /* ── 圓角 ── */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 999px;

  /* ── 陰影 ── */
  --shadow-card: 0 1px 0 rgba(255,255,255,0.04) inset, 0 8px 24px rgba(0,0,0,0.35);
  --shadow-elevated: 0 1px 0 rgba(255,255,255,0.06) inset, 0 20px 50px rgba(0,0,0,0.5);
  --shadow-glow-blue: 0 0 0 1px var(--border-brand), 0 8px 30px var(--glow-blue);
  --shadow-glow-cta: 0 8px 30px rgba(59,108,246,0.40), 0 2px 8px rgba(34,211,238,0.25);
  --shadow-phone: 0 30px 80px rgba(0,0,0,0.6), 0 8px 24px rgba(0,0,0,0.4);

  /* ── 動畫節拍 ── */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-fast: 180ms;
  --dur-base: 320ms;
  --dur-slow: 640ms;
  --dur-reveal: 720ms;

  /* ── z-index ── */
  --z-bg: 0;
  --z-base: 1;
  --z-nav: 50;
  --z-toast: 90;

  /* ── 字體堆疊 ── */
  --font-display: 'Sora', 'Noto Sans TC', system-ui, sans-serif;
  --font-sans: 'Noto Sans TC', 'Sora', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Noto Sans TC', ui-monospace, monospace;
}

/* ════════════════════════════════════════════════════════
   BASE
   ════════════════════════════════════════════════════════ */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
/* GSAP/Lenis 接管後關掉原生平滑捲動（避免與 Lenis 慣性、ScrollTrigger 的
   程式化 scroll 互相打架）。錨點捲動改由 lenis.scrollTo / GSAP 處理。 */
html.gsap-ready { scroll-behavior: auto; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--text-primary);
  background: var(--bg-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
::selection { background: rgba(34,211,238,0.28); color: #fff; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
h1, h2, h3 { margin: 0; font-weight: 700; line-height: var(--lh-snug); }

/* 容器 */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

/* section 通用 */
.section { position: relative; padding-block: var(--section-pad-y); overflow: hidden; }
.section--surface1 { background: var(--surface-1); }
.section--base { background: var(--bg-base); }
/* 區段頂部髮絲分隔 */
.hairline-top::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: var(--gradient-hairline); z-index: var(--z-base);
}

/* ════════════════════════════════════════════════════════
   時段格紋 MOTIF（藍圖網格 + 發光時段格）
   ════════════════════════════════════════════════════════ */
.grid-bg {
  position: absolute; inset: 0; z-index: var(--z-bg); pointer-events: none;
  background-image:
    repeating-linear-gradient(90deg, var(--grid-line) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(0deg, var(--grid-line) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(90deg, var(--grid-line-strong) 0 1px, transparent 1px 256px),
    repeating-linear-gradient(0deg, var(--grid-line-strong) 0 1px, transparent 1px 256px);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 35%, #000 30%, transparent 100%);
  mask-image: radial-gradient(ellipse 80% 70% at 50% 35%, #000 30%, transparent 100%);
}
.grid-bg--dense { background-size: 48px 48px, 48px 48px, 192px 192px, 192px 192px; }
.grid-bg--skew { transform: skewY(-2deg); transform-origin: top left; }

/* 發光時段格 */
.slot-glow {
  position: absolute; width: 64px; height: 64px; border-radius: 6px;
  background: linear-gradient(135deg, rgba(91,141,239,.16), rgba(34,211,238,.1));
  border: 1px solid rgba(34,211,238,.16);
  z-index: var(--z-bg); pointer-events: none;
  animation: slotBreathe 8s var(--ease-in-out) infinite;
}
.slot-glow:nth-child(2) { animation-duration: 11s; animation-delay: -3s; }
.slot-glow:nth-child(3) { animation-duration: 6.5s; animation-delay: -5s; }
.slot-glow:nth-child(4) { animation-duration: 9.5s; animation-delay: -1.5s; }
@keyframes slotBreathe {
  0%, 100% { opacity: .15; box-shadow: 0 0 0 rgba(34,211,238,0); }
  50% { opacity: .6; box-shadow: 0 0 24px var(--glow-cyan); }
}

/* AI 氛圍圖底層（壓深色遮罩） */
.ambient-img {
  position: absolute; inset: 0; z-index: var(--z-bg); pointer-events: none;
  object-fit: cover; width: 100%; height: 100%;
}
.veil { position: absolute; inset: 0; z-index: var(--z-bg); pointer-events: none; background: var(--gradient-veil); }

/* ════════════════════════════════════════════════════════
   排版輔助 class
   ════════════════════════════════════════════════════════ */
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-weight: 500;
  font-size: var(--fs-eyebrow); text-transform: uppercase;
  letter-spacing: var(--tracking-eyebrow); color: var(--brand-cyan);
}
.eyebrow::before {
  content: ""; width: 8px; height: 8px; border-radius: 2px;
  background: var(--gradient-brand); box-shadow: 0 0 8px var(--glow-cyan);
  flex-shrink: 0;
}
.h2-section {
  font-family: var(--font-sans); font-weight: 700;
  font-size: var(--fs-h2-fluid); line-height: var(--lh-snug);
  letter-spacing: var(--tracking-tight); color: var(--text-primary);
}
.lead {
  color: var(--text-secondary); font-size: var(--fs-body-lg);
  line-height: var(--lh-body); font-weight: 400;
}
.text-gradient {
  background: var(--gradient-brand);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.text-gradient-bright {
  background: var(--gradient-text);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* ════════════════════════════════════════════════════════
   LOGO / WORDMARK（柚子吉祥物 + 品牌字）
   ════════════════════════════════════════════════════════ */
.brand-lockup { display: inline-flex; align-items: center; gap: 12px; }
.brand-tile {
  width: 40px; height: 40px; border-radius: 11px;
  background: linear-gradient(150deg, #14365a, #0A0E17);
  border: 1px solid var(--border-strong);
  display: grid; place-items: center; overflow: hidden;
  box-shadow: 0 4px 16px rgba(0,0,0,0.45), 0 0 0 1px rgba(34,211,238,0.08) inset;
  flex-shrink: 0;
}
.brand-tile img { width: 100%; height: 100%; object-fit: cover; }
.brand-word {
  font-family: var(--font-display); font-weight: 700;
  letter-spacing: -0.01em; color: var(--text-primary);
  font-size: 1.25rem; white-space: nowrap;
}
.brand-word .accent {
  background: var(--gradient-brand);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* ════════════════════════════════════════════════════════
   按鈕
   ════════════════════════════════════════════════════════ */
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 28px; border-radius: var(--radius-pill);
  font-weight: 600; font-size: var(--fs-body); font-family: var(--font-sans);
  color: var(--text-on-brand); border: none; cursor: pointer;
  background: var(--gradient-brand); background-size: 140% 140%;
  box-shadow: var(--shadow-glow-cta);
  transition: transform var(--dur-base) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out),
              background-position var(--dur-slow) var(--ease-out);
}
.btn-primary:hover {
  transform: translateY(-2px); background-position: 100% 0;
  box-shadow: 0 12px 40px rgba(59,108,246,0.5), 0 2px 10px rgba(34,211,238,0.35);
}
.btn-primary:active { transform: translateY(0); }
.btn-primary:focus-visible { outline: 2px solid var(--brand-cyan); outline-offset: 3px; }
.btn-primary:disabled { opacity: 0.85; cursor: default; }
.btn-primary--sm { padding: 10px 20px; font-size: var(--fs-body-sm); }
.btn-primary--block { width: 100%; }

.btn-secondary {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 28px; border-radius: var(--radius-pill);
  font-weight: 500; font-size: var(--fs-body); font-family: var(--font-sans);
  color: var(--text-primary); cursor: pointer;
  background: transparent; border: 1px solid var(--border-default);
  transition: border-color var(--dur-base) var(--ease-out),
              background var(--dur-base) var(--ease-out),
              transform var(--dur-base) var(--ease-out);
}
.btn-secondary:hover { border-color: var(--border-strong); background: var(--surface-3); }
.btn-secondary:hover .arrow { transform: translateX(3px); }
.btn-secondary:focus-visible { outline: 2px solid var(--brand-cyan); outline-offset: 3px; }
.arrow { transition: transform var(--dur-base) var(--ease-out); }

/* ════════════════════════════════════════════════════════
   卡片
   ════════════════════════════════════════════════════════ */
.card {
  position: relative; isolation: isolate;
  background: var(--surface-2); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md); box-shadow: var(--shadow-card);
  padding: var(--space-6);
  transition: transform var(--dur-base) var(--ease-out),
              border-color var(--dur-base) var(--ease-out),
              background var(--dur-base) var(--ease-out);
}
/* hover 浮現的時段格紋紋理（每卡角度可微調） */
.card::after {
  content: ""; position: absolute; inset: 0; z-index: -1; border-radius: inherit;
  opacity: 0; transition: opacity var(--dur-base) var(--ease-out);
  background-image:
    repeating-linear-gradient(90deg, rgba(91,141,239,0.07) 0 1px, transparent 1px 28px),
    repeating-linear-gradient(0deg, rgba(91,141,239,0.07) 0 1px, transparent 1px 28px);
  -webkit-mask-image: linear-gradient(135deg, #000, transparent 70%);
  mask-image: linear-gradient(135deg, #000, transparent 70%);
}
.card:nth-child(even)::after {
  background-image:
    repeating-linear-gradient(90deg, rgba(34,211,238,0.06) 0 1px, transparent 1px 24px),
    repeating-linear-gradient(0deg, rgba(34,211,238,0.06) 0 1px, transparent 1px 24px);
}
.card:hover {
  transform: translateY(-4px);
  background: var(--surface-3); border-color: var(--border-strong);
}
.card:hover::after { opacity: 1; }
.card:hover .icon-box { background: rgba(59,108,246,0.18); box-shadow: 0 0 16px rgba(34,211,238,0.25); }

.icon-box {
  width: 44px; height: 44px; border-radius: var(--radius-sm);
  background: rgba(59,108,246,0.10); color: var(--brand-cyan);
  display: grid; place-items: center; flex-shrink: 0;
  transition: background var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
}
.card-title { font-size: var(--fs-h3); color: var(--text-primary); font-weight: 700; }
.card-desc { color: var(--text-secondary); font-size: var(--fs-body-sm); line-height: var(--lh-body); }

/* ════════════════════════════════════════════════════════
   NAV
   ════════════════════════════════════════════════════════ */
.nav {
  position: sticky; top: 0; z-index: var(--z-nav);
  background: transparent; border-bottom: 1px solid transparent;
  transition: background var(--dur-base) var(--ease-out),
              border-color var(--dur-base) var(--ease-out),
              backdrop-filter var(--dur-base) var(--ease-out);
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
/* 手機：nav CTA 縮成 LINE 圓形 icon（省空間、不擠品牌；桌機維持完整文字按鈕）*/
@media (max-width: 640px) {
  .nav-cta-label { display: none; }
  .nav__inner .btn-primary--sm { padding: 0; width: 40px; height: 40px; border-radius: 50%; flex: 0 0 auto; }
  .nav__inner .btn-primary--sm svg { margin: 0; }
}
.nav--scrolled {
  background: var(--surface-glass);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: rgba(255,255,255,0.06);
}
.nav--scrolled::after {
  content: ""; position: absolute; bottom: -1px; left: 0; right: 0; height: 1px;
  background: var(--gradient-hairline);
}

/* ════════════════════════════════════════════════════════
   HERO
   ════════════════════════════════════════════════════════ */
.hero { position: relative; padding-top: clamp(56px, 9vw, 110px); padding-bottom: clamp(64px, 10vw, 128px); overflow: hidden; }
.hero__grid {
  display: grid; gap: clamp(40px, 6vw, 72px); align-items: center;
  grid-template-columns: 1fr;
}
@media (min-width: 1024px) {
  .hero__grid { grid-template-columns: 1.1fr 0.9fr; }
}
.hero__title {
  font-family: var(--font-sans); font-weight: 900;
  font-size: var(--fs-h1-fluid); line-height: var(--lh-tight);
  letter-spacing: var(--tracking-tight); color: var(--text-primary);
  margin-block: 20px 22px; text-wrap: balance;
}
.hero__lead { max-width: 46ch; }
.hero__cta-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.hero__trust {
  margin-top: 26px; font-family: var(--font-mono); font-size: var(--fs-eyebrow);
  color: var(--text-tertiary); letter-spacing: 0.04em; line-height: 1.7;
}
.hero__trust .dot { color: var(--brand-cyan); }

/* Hero 右側視覺 */
.hero__visual { position: relative; display: grid; place-items: center; min-height: 360px; }
.hero__stage {
  position: relative; width: 100%; max-width: 440px; min-height: 500px;
  display: grid; place-items: center; margin-inline: auto;
}
.hero__phone { position: absolute; }
.hero__phone--front {
  width: clamp(185px, 52%, 216px); z-index: 3;
  transform: rotate(-4deg) translateX(-12%);
  box-shadow: var(--shadow-phone), 0 44px 80px -30px rgba(0,0,0,0.82), 0 0 70px rgba(59,108,246,0.20);
}
.hero__phone--back {
  width: clamp(155px, 44%, 186px); z-index: 1; opacity: 0.9;
  transform: rotate(7deg) translateX(46%) translateY(-8%);
  filter: saturate(0.9) brightness(0.9);
  box-shadow: 0 32px 64px -28px rgba(0,0,0,0.8);
}
.hero__mascot-badge {
  position: absolute; z-index: 4; left: 2%; bottom: 6%;
  width: clamp(78px, 13vw, 104px); height: clamp(78px, 13vw, 104px);
  border-radius: 50%; overflow: hidden;
  border: 3px solid rgba(255,255,255,0.12);
  box-shadow: 0 18px 36px -14px rgba(0,0,0,0.7), 0 0 42px rgba(34,211,238,0.28);
  background: linear-gradient(160deg, #18233A, #0A0E17);
}
.hero__mascot-badge img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.06); }
@media (max-width: 1023px) { .hero__stage { min-height: 460px; } }

/* ── Hero 下滑提示（scroll cue）：置中偏下、輕微上下浮動、捲動後淡出 ── */
.scroll-cue {
  position: absolute; left: 50%; bottom: clamp(16px, 3vh, 32px);
  transform: translateX(-50%);
  z-index: var(--z-base);
  display: inline-flex; flex-direction: column; align-items: center; gap: 6px;
  color: var(--text-tertiary); pointer-events: none;
}
.scroll-cue__label {
  font-family: var(--font-mono); font-size: 0.6875rem;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--text-tertiary);
}
.scroll-cue__icon { color: var(--brand-cyan); display: block; }
/* 純 CSS 上下浮動（GSAP 載入後會以 set/淡出接管，但備援動畫先在這） */
.scroll-cue__icon { animation: scrollCueBob 1.8s var(--ease-in-out) infinite; }
@keyframes scrollCueBob {
  0%, 100% { transform: translateY(0); opacity: 0.9; }
  50% { transform: translateY(6px); opacity: 0.55; }
}
/* GSAP 接手後由 JS 控制淡出，這裡只負責備援可見性 */
@media (max-width: 640px) { .scroll-cue { bottom: clamp(10px, 2vh, 20px); } }

/* ════════════════════════════════════════════════════════
   裝置框（手機 mockup）
   ════════════════════════════════════════════════════════ */
.device {
  position: relative;
  background: linear-gradient(145deg, #2A3346, #0E1320);
  padding: 9px; border-radius: clamp(28px, 3vw, 40px);
  box-shadow: var(--shadow-phone);
  border: 1px solid rgba(255,255,255,0.06);
}
.device__screen {
  position: relative; overflow: hidden; border-radius: clamp(20px, 2.4vw, 32px);
  aspect-ratio: 1290 / 2796; background: #000;
}
.device__screen img { width: 100%; height: 100%; object-fit: cover; object-position: top; }

/* 表單欄位：雙欄、留言框、選填標示 */
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 480px) { .form-row { grid-template-columns: 1fr; } }
.form-textarea { min-height: 88px; resize: vertical; line-height: 1.6; font-family: inherit; }
.form-optional { color: var(--text-tertiary); font-weight: 400; font-size: 0.85em; }

/* ── 柚子動起來：全螢幕分鏡（文字主角 + 柚子配角 image sequence）── */
.seq { position: relative; height: 420vh; background: var(--bg-base); }
@media (max-width: 768px) { .seq { height: 360vh; } }
.seq__sticky { position: sticky; top: 0; height: 100vh; overflow: hidden; }
.seq__eyebrow {
  position: absolute; top: clamp(76px, 13vh, 132px); left: 50%; transform: translateX(-50%);
  z-index: 4; margin: 0;
}
/* 柚子：配角，置中層（在文字後方），GSAP 控位移/縮放 */
.seq__mascot {
  position: absolute; inset: 0; z-index: 1;
  display: grid; place-items: center; pointer-events: none;
}
#seqCanvas {
  width: min(300px, 58vw); height: auto; display: block; will-change: transform;
  filter: drop-shadow(0 26px 46px rgba(0,0,0,0.5)) drop-shadow(0 0 40px rgba(34,211,238,0.18));
}
/* 大字：主角，逐句揭示，永遠在上層、清晰可讀 */
.seq__lines {
  position: absolute; inset: 0; z-index: 2; display: grid; place-items: center;
  padding-inline: var(--container-pad); pointer-events: none; will-change: transform;
}
.seq__line {
  grid-area: 1 / 1; text-align: center; max-width: 18ch; margin: 0;
  font-family: var(--font-sans); font-weight: 900; line-height: 1.12;
  letter-spacing: var(--tracking-tight); color: var(--text-primary);
  font-size: clamp(2rem, 6.4vw, 4.25rem); text-shadow: 0 2px 30px rgba(10,14,23,0.65);
  opacity: 0; transform: translateY(28px) scale(0.95);
  transition: opacity 0.55s var(--ease-out), transform 0.55s var(--ease-out);
}
.seq__line.is-on { opacity: 1; transform: none; }
.seq__line .text-gradient { white-space: nowrap; }  /* 漸層詞不從中間斷字 */
.seq__progress {
  position: absolute; bottom: clamp(40px, 9vh, 84px); left: 50%; transform: translateX(-50%);
  display: flex; gap: 8px; z-index: 4;
}
.seq__progress span {
  width: 26px; height: 3px; border-radius: 2px; background: var(--border-default);
  transition: background 0.35s var(--ease-out), width 0.35s var(--ease-out);
}
.seq__progress span.is-on { background: var(--gradient-brand); width: 42px; }
@media (prefers-reduced-motion: reduce) {
  .seq__line { transition: none; } .seq__progress span { transition: none; }
}

.ambient-img { will-change: transform; }

/* ════════════════════════════════════════════════════════
   裝飾向量浮動視差（decorative floating vectors）
   ────────────────────────────────────────────────────────
   小尺寸、低透明的藍／青向量（sparkle / dumbbell），只放在背景
   留白與深色區（hero 角落、柚子舞台周圍、深底空白）。
   硬規則：pointer-events:none、永遠壓在內容之下（z-index:0），
   絕不疊到文字／卡片／表單；不可造成水平捲動。
   動態（漂浮 / 旋轉 / 捲動視差）由 GSAP 在 main.js 控制；
   GSAP 失敗或 reduced-motion 時保持靜態，純裝飾不影響版面。
   ════════════════════════════════════════════════════════ */
.decor {
  position: absolute;
  z-index: var(--z-bg);          /* 永遠在內容（--z-base）之下 */
  pointer-events: none;
  user-select: none;
  width: var(--decor-size, 48px);
  height: auto;
  opacity: var(--decor-opacity, 0.4);
  /* 統一收斂到品牌藍青色調，壓住白色細節避免在深底上過於搶眼 */
  filter: drop-shadow(0 0 10px rgba(34, 211, 238, 0.18))
          saturate(1.05);
  will-change: transform;
}
.decor img { width: 100%; height: 100%; display: block; }
/* sparkle 偏青、dumbbell 偏藍，皆低調 */
.decor--sparkle { --decor-opacity: 0.42; }
.decor--dumbbell {
  --decor-opacity: 0.3;
  /* dumbbell 含較多白色細節，降亮度＋偏藍讓它融入深底 */
  filter: brightness(0.85) saturate(0.9)
          drop-shadow(0 0 10px rgba(59, 108, 246, 0.16));
}
/* 手機收斂：尺寸再小一點、再低調一點，避免在窄畫面顯眼或佔位 */
@media (max-width: 640px) {
  .decor { --decor-size: 34px; opacity: calc(var(--decor-opacity, 0.4) * 0.8); }
}

/* ── 分鏡橋段（.seq--beat）：沿用 .seq 全螢幕分鏡，只把 sticky 舞台高度收短 ──
   3 段橋段（seq-flex / seq-lift / seq-cheer）比照 #seq，但高度比 hero 主分鏡短，
   避免頁面過長（hero #seq 420vh；橋段 300vh）。 */
.seq--beat { height: 300vh; }
@media (max-width: 768px) { .seq--beat { height: 260vh; } }

.device__notch {
  position: absolute; top: 9px; left: 50%; transform: translateX(-50%);
  width: 34%; height: 18px; border-radius: var(--radius-pill);
  background: rgba(0,0,0,0.78); z-index: 2;
}

/* ════════════════════════════════════════════════════════
   賣點 bento
   ════════════════════════════════════════════════════════ */
.features-grid {
  display: grid; gap: 20px; grid-template-columns: 1fr;
}
@media (min-width: 768px) { .features-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .features-grid { grid-template-columns: repeat(3, 1fr); } }
/* 賣點① 跨兩欄 hero-card */
.feature-hero {
  position: relative;
  border-color: var(--border-brand);
  background:
    radial-gradient(120% 120% at 0% 0%, rgba(59,108,246,0.12), transparent 55%),
    var(--surface-2);
  box-shadow: var(--shadow-glow-blue);
}
@media (min-width: 768px) { .feature-hero { grid-column: span 2; } }
@media (min-width: 1024px) { .feature-hero { grid-column: span 2; } }
.feature-hero:hover {
  background:
    radial-gradient(120% 120% at 0% 0%, rgba(59,108,246,0.18), transparent 55%),
    var(--surface-3);
}
.feature-strong { color: var(--text-primary); font-weight: 700; font-size: var(--fs-body-lg); line-height: var(--lh-snug); }

/* App window 小裝飾（賣點①） */
.app-window {
  margin-top: 22px; border-radius: var(--radius-md);
  border: 1px solid var(--border-default); background: var(--surface-1);
  overflow: hidden;
}
.app-window__bar {
  display: flex; align-items: center; gap: 7px; padding: 10px 14px;
  border-bottom: 1px solid var(--border-subtle);
}
.app-window__dot { width: 9px; height: 9px; border-radius: 50%; background: var(--border-strong); }
.app-window__body { padding: 16px; display: grid; gap: 9px; }
.app-window__line { height: 9px; border-radius: 4px; background: var(--surface-3); }
.app-window__line--accent { background: var(--gradient-brand); width: 45%; }

/* ════════════════════════════════════════════════════════
   運作方式（時間軸）
   ════════════════════════════════════════════════════════ */
/* 「編號主導的流程帶」：大編號當主角＋對齊基準，圖標縮為編號旁小幫手，裝飾克制統一。
   手機垂直堆疊；桌機水平等寬三欄，上方一條 draw-on rail 連接三步。 */
.steps { display: flex; flex-direction: column; gap: 18px; position: relative; }
@media (min-width: 768px) {
  .steps { flex-direction: row; flex-wrap: wrap; align-items: stretch; gap: 20px; }
}
.step {
  position: relative; background: var(--surface-1);
  border: 1px solid var(--border-subtle); border-radius: var(--radius-lg);
  padding: 30px 28px 28px; display: flex; flex-direction: column;
  transition: transform var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out);
}
@media (min-width: 768px) {
  .step { flex: 1 1 0; min-width: 0; min-height: 230px; }
}
.step:hover { transform: translateY(-4px); border-color: var(--border-brand); }
/* 卡片質感：頂部 1px 漸層提示線（hover 點亮）＋ 極淡上方來光。不再有集中右上的光暈/格紋/出血 chip。 */
.step::before {
  content: ''; position: absolute; left: 0; right: 0; top: 0; height: 1px; z-index: 1;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: linear-gradient(90deg, transparent 0%, rgba(34,211,238,0.40) 28%, rgba(59,108,246,0.40) 72%, transparent 100%);
  opacity: 0.35; transition: opacity var(--dur-base) var(--ease-out);
}
.step::after {
  content: ''; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255,255,255,0.02), transparent 42%);
}
/* 編號＋圖標同一列（共同基線＝三卡永遠對齊）*/
.step__head { position: relative; z-index: 2; display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.step__num {
  font-family: var(--font-mono); font-weight: 700; font-size: 3rem; line-height: 1; letter-spacing: -0.01em;
  color: transparent; background: var(--gradient-text); -webkit-background-clip: text; background-clip: text;
  filter: drop-shadow(0 0 18px rgba(34,211,238,0.18));
}
.step__icon {
  width: 40px; height: 40px; flex: none; display: grid; place-items: center; border-radius: var(--radius-md);
  color: var(--brand-cyan); background: rgba(34,211,238,0.06); border: 1px solid var(--border-subtle);
  transition: color var(--dur-base) var(--ease-out), background var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out);
}
.step__icon svg { width: 22px; height: 22px; }
.step__title { position: relative; z-index: 2; font-size: var(--fs-h3); color: var(--text-primary); font-weight: 700; line-height: 1.35; margin: 0; }
.step__desc { position: relative; z-index: 2; color: var(--text-secondary); font-size: var(--fs-body-sm); line-height: 1.7; margin-top: 12px; }
.step:hover::before { opacity: 1; }
.step:hover .step__icon { color: var(--text-primary); background: rgba(34,211,238,0.12); border-color: var(--border-brand); }

/* 結果收尾卡：同色系更飽和漸層 ＋ 左側匯流豎條 ＋ 加大上方間距＝「三步匯流的結果」而非第四張同級卡 */
.step-result {
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, rgba(59,108,246,0.10), rgba(34,211,238,0.06)), var(--surface-1);
  border: 1px solid var(--border-brand); border-radius: var(--radius-lg);
  padding: 28px 32px; display: grid; align-content: center; gap: 8px; margin-top: 22px;
}
.step-result::before {
  content: ''; position: absolute; left: 0; top: 16px; bottom: 16px; width: 3px; border-radius: 0 3px 3px 0;
  background: linear-gradient(180deg, var(--brand-blue), var(--brand-cyan));
}
.step-result__icon { justify-self: start; }
@media (min-width: 768px) {
  .step-result { flex: 1 1 100%; margin-top: 28px; }
  .step-result__icon { position: absolute; top: 26px; right: 28px; }
}

/* （流程連接 rail／節點已移除：節點落在卡片中心、與左側編號不對齊而突兀；
   流程改由放大的編號 01→02→03 自然帶出，卡間箭頭也已移除。）*/

/* ════════════════════════════════════════════════════════
   案例 mockup 牆
   ════════════════════════════════════════════════════════ */
.case-grid { display: grid; gap: clamp(40px, 5vw, 64px); grid-template-columns: 1fr; align-items: center; }
@media (min-width: 1024px) { .case-grid { grid-template-columns: 0.85fr 1.15fr; } }
.case-logo { height: 56px; width: auto; margin-bottom: 12px; }
.case-badge {
  display: inline-flex; align-items: center; gap: 8px; margin-top: 20px;
  font-family: var(--font-mono); font-size: var(--fs-body-sm); color: var(--text-secondary);
  border: 1px solid var(--border-default); border-radius: var(--radius-pill);
  padding: 8px 16px; background: var(--surface-2);
}

/* 對比區：釘住式字幕分鏡（pinned scrollytelling）
   桌機＝畫面釘住、中央字幕 beats 隨捲動逐段揭示、最後收束成三欄定版；
   手機 / 無 JS / reduce-motion ＝ 直接顯示三欄定版（.compare__final）。
   層級刻意反轉——替代方案降階(灰)、改用 GymTimeSlots 升階(亮、放大)為主角。 */
.compare { position: relative; }
.compare__head { text-align: center; margin-inline: auto; }
#compare-title .ct-f, #compare-title .ct-q { display: inline-block; }  /* 讓標題字段可被 GSAP 位移/縮放 */
.compare__reel { display: none; }       /* 累積式分鏡僅桌機顯示 */
.compare__progress { display: none; }   /* 進度點僅桌機分鏡顯示 */

/* 累積式判決清單：每行＝左現狀(降階) → 箭頭 → 右升級(主角)；逐行長出、出現後留住 */
.compare__row {
  display: grid; grid-template-columns: minmax(0,1fr) auto minmax(0,1.35fr);
  align-items: center; gap: clamp(12px, 1.8vw, 28px);
  padding: clamp(13px,1.7vh,20px) clamp(16px,1.9vw,26px);
  border-radius: var(--radius-lg); border: 1px solid var(--border-subtle); background: var(--surface-1);
  will-change: opacity, transform;
}
.compare__row-now { display: inline-flex; align-items: center; gap: 9px; font-family: var(--font-mono); font-size: var(--fs-body-sm); color: var(--text-tertiary); }
.compare__row-now svg { flex: none; color: #F0726B; }
.compare__row-sep { display: flex; justify-content: center; color: var(--brand-cyan); opacity: 0.75; }
.compare__row-win { display: flex; flex-direction: column; gap: 4px; }
.compare__row-brand { font-family: var(--font-mono); font-size: var(--fs-eyebrow); letter-spacing: 0.06em; color: var(--brand-cyan); }
.compare__row-gain { margin: 0; font-family: var(--font-display); font-weight: 700; color: var(--text-primary); font-size: clamp(1.15rem, 1.9vw, 1.7rem); line-height: 1.3; }
.compare__row-gain b { background: var(--gradient-text); -webkit-background-clip: text; background-clip: text; color: transparent; filter: drop-shadow(0 0 12px rgba(34,211,238,0.42)); }

/* 收尾結論句 */
.compare__sum { margin: clamp(8px,1.6vh,18px) 0 0; text-align: center; font-family: var(--font-display); font-weight: 700; color: var(--text-secondary); font-size: clamp(1.2rem, 2.2vw, 1.9rem); line-height: 1.32; }
.compare__sum b { background: var(--gradient-text); -webkit-background-clip: text; background-clip: text; color: transparent; transition: filter 0.4s var(--ease-out); }
.compare__sum.is-on b { filter: drop-shadow(0 0 22px rgba(34,211,238,0.5)); }

/* 桌機（非 reduce-motion ＋ GSAP 就緒）：改用累積式判決清單(reel)，定版三欄(final)隱藏。
   不釘住捲動；整段分鏡在捲進視窗時自動播一次（見 main.js buildCompare）。 */
@media (min-width: 1024px) and (prefers-reduced-motion: no-preference) {
  html.gsap-ready .compare__final { display: none; }
  html.gsap-ready .compare__reel {
    display: flex; flex-direction: column; align-items: stretch;
    gap: clamp(14px, 2.2vh, 26px); max-width: 940px;
    margin: clamp(20px, 3vw, 40px) auto 0; will-change: opacity, transform;
  }
}

/* #compare 做厚：背景氛圍、大字發光、小元件微動 */
.compare__sticky > .container { position: relative; z-index: 2; }
.compare .grid-bg { z-index: 0; opacity: 0.5;
  -webkit-mask-image: radial-gradient(ellipse 72% 62% at 50% 46%, transparent 0%, #000 58%, transparent 100%);
  mask-image: radial-gradient(ellipse 72% 62% at 50% 46%, transparent 0%, #000 58%, transparent 100%);
}
.compare-aura { position: absolute; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.compare-aura__blob { position: absolute; width: 46vw; height: 46vw; max-width: 700px; max-height: 700px; border-radius: 50%; filter: blur(90px); opacity: 0.5; will-change: transform; }
.compare-aura__blob--blue { top: -8%; left: -6%; background: radial-gradient(circle, rgba(59,108,246,0.30) 0%, transparent 68%); animation: cmpAura1 26s ease-in-out infinite alternate; }
.compare-aura__blob--cyan { bottom: -12%; right: -4%; background: radial-gradient(circle, rgba(34,211,238,0.24) 0%, transparent 68%); animation: cmpAura2 32s ease-in-out infinite alternate; }
@keyframes cmpAura1 { from { transform: translate3d(0,0,0) scale(1); } to { transform: translate3d(8%,6%,0) scale(1.14); } }
@keyframes cmpAura2 { from { transform: translate3d(0,0,0) scale(1.06); } to { transform: translate3d(-7%,-5%,0) scale(0.94); } }

/* （對比區發光改由 .compare__row-gain b 與 .compare__sum.is-on 處理）*/

@media (prefers-reduced-motion: reduce) {
  .compare-aura__blob, .compare__progress span.is-on { animation: none; }
}

.compare-grid { display: grid; gap: 20px; grid-template-columns: 1fr; margin-top: clamp(36px, 5vw, 56px); }
@media (min-width: 880px) { .compare-grid { grid-template-columns: repeat(3, 1fr); align-items: stretch; } }

.compare-card {
  display: flex; flex-direction: column; gap: 9px;
  padding: clamp(22px, 2.4vw, 30px); border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle); background: var(--surface-1);
  transition: border-color var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
}
.compare-card:hover { border-color: var(--border-default); transform: translateY(-2px); }

/* 上半：你現在的做法（降階＝灰、不搶眼，避免被誤讀成我們的功能）*/
.compare-card__tag {
  display: inline-flex; align-items: center; gap: 7px;
  font-family: var(--font-mono); font-size: var(--fs-eyebrow); letter-spacing: 0.04em;
  color: var(--text-tertiary);
}
.compare-card__tag svg { flex: none; color: #F0726B; }
.compare-card__alt {
  font-family: var(--font-display); font-weight: 600; font-size: var(--fs-body);
  color: var(--text-secondary);
}
.compare-card__problem { margin: 0; color: var(--text-tertiary); font-size: var(--fs-body-sm); }
.compare-card__arrow { display: flex; justify-content: center; color: var(--brand-cyan); opacity: 0.7; margin: 6px 0 2px; }

/* 下半：改用 GymTimeSlots（升階＝亮、放大，視覺主角）*/
.compare-card__win {
  margin-top: auto;
  background: color-mix(in srgb, var(--brand-cyan) 9%, transparent);
  border: 1px solid color-mix(in srgb, var(--brand-cyan) 28%, transparent);
  border-radius: var(--radius-md); padding: 16px 16px;
}
.compare-card__brand {
  display: block; font-family: var(--font-mono); font-size: var(--fs-eyebrow);
  letter-spacing: 0.06em; color: var(--brand-cyan); margin-bottom: 7px;
}
.compare-card__gain {
  margin: 0; color: var(--text-primary); font-family: var(--font-display); font-weight: 600;
  font-size: clamp(1.15rem, 1.5vw, 1.4rem); line-height: 1.32;
}

/* App Store / Google Play 下載徽章（連結待補：href="" 時不可點；補上網址即自動可點）*/
.store-badge {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 12px 18px; min-height: 55px; border-radius: 14px;
  border: 1px solid var(--border-default); background: var(--surface-2);
  color: var(--text-primary); text-decoration: none;
  transition: border-color var(--dur-slow) var(--ease-out), background var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
}
.store-badge[href=""] { pointer-events: none; }   /* 空連結：暫不可點，補上 href 後自動恢復 */
.store-badge:hover { border-color: var(--border-strong); background: var(--surface-3); transform: translateY(-1px); }
.store-badge:focus-visible { outline: 2px solid var(--brand-cyan); outline-offset: 3px; }
.store-badge__logo { width: 22px; height: 22px; flex: none; }
.store-badge__txt { display: flex; flex-direction: column; line-height: 1.08; text-align: left; }
.store-badge__txt small { font-size: 10px; color: var(--text-secondary); font-family: var(--font-mono); letter-spacing: 0.03em; white-space: nowrap; }
.store-badge__txt b { font-size: var(--fs-body); font-weight: 600; white-space: nowrap; }

/* CASE 區行動按鈕排列：官網按鈕 ＋ 兩個商店徽章一組 */
.case-actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; margin-top: 28px; }
.case-actions .store-badges { display: flex; gap: 12px; }
@media (max-width: 767px) {
  /* 手機：官網按鈕自成一列（滿寬置中）；兩個徽章同一列各佔一半 */
  .case-actions > .btn-secondary { flex: 1 1 100%; justify-content: center; }
  .case-actions .store-badges { flex: 1 1 100%; }
  .case-actions .store-badges > .store-badge { flex: 1 1 0; min-width: 0; justify-content: center; gap: 9px; padding-inline: 12px; }
}

/* 招募空位卡：未來客戶目錄的「＋」空位（虛線外框＝待填空位，直接申請） */
.case-apply {
  display: flex; align-items: center; gap: clamp(16px, 2.5vw, 28px);
  margin-top: clamp(40px, 5vw, 60px);
  padding: clamp(20px, 2.6vw, 28px) clamp(22px, 3vw, 34px);
  border: 1.5px dashed var(--border-strong); border-radius: var(--radius-lg);
  background: var(--surface-glass); color: var(--text-primary); text-decoration: none;
  transition: border-color var(--dur-slow) var(--ease-out), background var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
}
.case-apply:hover { border-color: var(--brand-cyan); background: var(--surface-2); transform: translateY(-2px); }
.case-apply:focus-visible { outline: 2px solid var(--brand-cyan); outline-offset: 3px; }
.case-apply__plus {
  flex: none; display: grid; place-items: center; width: 58px; height: 58px;
  border-radius: var(--radius-md); border: 1.5px dashed var(--border-strong); color: var(--brand-cyan);
  transition: border-color var(--dur-slow) var(--ease-out), background var(--dur-slow) var(--ease-out);
}
.case-apply:hover .case-apply__plus { border-color: var(--brand-cyan); background: rgba(34, 211, 238, 0.08); }
.case-apply__text { display: flex; flex-direction: column; gap: 5px; flex: 1 1 auto; }
.case-apply__title { font-family: var(--font-display); font-weight: 600; font-size: var(--fs-h3); color: var(--text-primary); }
.case-apply__desc { color: var(--text-secondary); font-size: var(--fs-body-sm); max-width: 52ch; }
.case-apply__cta {
  flex: none; display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: var(--fs-body-sm); color: var(--brand-cyan);
}
.case-apply__cta .arrow { transition: transform 220ms var(--ease-out); }
.case-apply:hover .case-apply__cta .arrow { transform: translateX(4px); }
@media (max-width: 680px) {
  .case-apply { flex-direction: column; align-items: flex-start; }
}

/* 桌機：傾斜扇形 mockup 牆 */
.phone-wall { position: relative; display: none; justify-content: center; align-items: flex-end; gap: 0; perspective: 1400px; }
.phone-wall .device {
  width: clamp(150px, 20vw, 218px); margin-inline: -22px;
  transition: transform var(--dur-slow) var(--ease-out), filter var(--dur-slow) var(--ease-out), opacity var(--dur-slow) var(--ease-out);
}
.phone-wall .device:nth-child(1) { transform: rotate(-7deg) translateY(28px); filter: brightness(0.72); z-index: 1; }
.phone-wall .device:nth-child(2) { transform: rotate(-2.5deg) translateY(4px); z-index: 3; }
.phone-wall .device:nth-child(3) { transform: rotate(2.5deg) translateY(4px); z-index: 2; }
.phone-wall .device:nth-child(4) { transform: rotate(7deg) translateY(28px); filter: brightness(0.72); z-index: 1; }
.phone-wall:hover .device { filter: brightness(0.6); opacity: 0.78; }
.phone-wall .device:hover { transform: rotate(0deg) translateY(-18px) scale(1.04) !important; filter: brightness(1.08) !important; opacity: 1 !important; z-index: 9; }
@media (min-width: 1024px) { .phone-wall { display: flex; } }

/* 手機：橫向捲動帶 */
.phone-scroller {
  display: flex; gap: 18px; overflow-x: auto; scroll-snap-type: x mandatory;
  padding: 8px 4px 18px; -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}
.phone-scroller .device { flex: 0 0 72%; max-width: 240px; scroll-snap-align: center; }
@media (min-width: 1024px) { .phone-scroller { display: none; } }

/* ════════════════════════════════════════════════════════
   CTA 區 + 表單
   ════════════════════════════════════════════════════════ */
.cta-grid { display: grid; gap: clamp(36px, 5vw, 56px); grid-template-columns: 1fr; align-items: start; }
@media (min-width: 1024px) { .cta-grid { grid-template-columns: 1fr 1fr; } }
/* CTA 左欄文字襯底：在裝飾格紋／發光方塊與文字之間加柔和暗罩，避免文字與底圖方塊「融合」 */
.cta-copy { position: relative; }
.cta-copy > * { position: relative; z-index: 1; }
.cta-copy::before {
  content: ''; position: absolute; inset: -26px -32px -22px -30px; z-index: 0; pointer-events: none;
  border-radius: 26px;
  background: radial-gradient(115% 100% at 26% 38%, rgba(14,19,32,0.92) 0%, rgba(14,19,32,0.62) 46%, transparent 78%);
}
.form-card {
  position: relative; background: var(--surface-2);
  border: 1px solid var(--border-default); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-elevated); padding: clamp(24px, 3vw, 36px);
}
.form-field { margin-bottom: 20px; }
.form-label {
  display: flex; align-items: center; gap: 6px;
  font-size: var(--fs-body-sm); color: var(--text-secondary); margin-bottom: 8px;
}
.form-label .req { width: 6px; height: 6px; border-radius: 50%; background: var(--brand-cyan); }
.form-input {
  width: 100%; padding: 14px 16px; border-radius: var(--radius-sm);
  background: var(--surface-3); border: 1px solid var(--border-default);
  color: var(--text-primary); font-size: var(--fs-body); font-family: var(--font-sans);
  transition: border-color var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}
select.form-input {
  appearance: none; -webkit-appearance: none; padding-right: 42px; cursor: pointer;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%239AA4B2' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><path d='m6 9 6 6 6-6'/></svg>");
  background-repeat: no-repeat; background-position: right 14px center;
}
select.form-input option { background: var(--surface-3); color: var(--text-primary); }
.form-input::placeholder { color: var(--text-tertiary); }
.form-input:focus {
  outline: none; border-color: var(--brand-blue);
  box-shadow: 0 0 0 3px rgba(59,108,246,0.18);
}
.form-input.is-error { border-color: #F6A23B; }
.form-error {
  display: none; color: #F6A23B; font-size: var(--fs-body-sm); margin-top: 7px;
}
.form-error.is-shown { display: block; }
.form-field.shake { animation: fieldShake 0.22s var(--ease-out); }
@keyframes fieldShake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-4px); }
  75% { transform: translateX(4px); }
}
.form-fineprint { font-size: var(--fs-eyebrow); color: var(--text-tertiary); margin-top: 16px; line-height: 1.7; }
.form-fineprint a { color: var(--text-secondary); text-decoration: underline; text-underline-offset: 2px; }

/* 表單成功狀態 */
.form-success { display: none; text-align: center; padding: 16px 0; }
.form-success.is-shown { display: block; animation: fadeIn var(--dur-base) var(--ease-out); }
.form-success__icon { color: var(--brand-cyan); margin: 0 auto 18px; width: 56px; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* loading spinner */
.spinner { animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* CTA 友善小柚子 */
.cta-mascot {
  width: 56px; height: 56px; border-radius: 15px; object-fit: cover;
  border: 1px solid var(--border-strong); box-shadow: 0 6px 18px rgba(0,0,0,0.4);
  flex-shrink: 0;
}

/* ════════════════════════════════════════════════════════
   FOOTER + marquee
   ════════════════════════════════════════════════════════ */
.footer { position: relative; background: var(--bg-base); padding-top: clamp(48px, 6vw, 80px); padding-bottom: 36px; }
.marquee-mask {
  position: relative; overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee { display: flex; width: max-content; }
.marquee__track { display: flex; gap: 12px; padding-inline: 6px; flex-shrink: 0; }
.marquee--row1 .marquee__track { animation: marqueeL 46s linear infinite; }
.marquee--row2 .marquee__track { animation: marqueeR 52s linear infinite; }
.marquee-mask:hover .marquee__track { animation-play-state: paused; }
@keyframes marqueeL { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@keyframes marqueeR { from { transform: translateX(-50%); } to { transform: translateX(0); } }

.chip {
  display: inline-flex; align-items: center; gap: 8px; white-space: nowrap;
  padding: 8px 16px; border-radius: var(--radius-pill);
  background: var(--surface-2); border: 1px solid var(--border-subtle);
  color: var(--text-secondary); font-size: var(--fs-body-sm);
  transition: border-color var(--dur-base) var(--ease-out), color var(--dur-base) var(--ease-out);
}
.chip:hover { border-color: var(--border-brand); color: var(--text-primary); }
.chip svg { color: var(--brand-cyan); flex-shrink: 0; }

.footer-bottom {
  display: flex; flex-wrap: wrap; gap: 18px; justify-content: space-between; align-items: center;
  margin-top: 40px; padding-top: 28px; border-top: 1px solid var(--border-subtle);
}
.footer-bottom__copy { color: var(--text-tertiary); font-size: var(--fs-body-sm); font-family: var(--font-mono); }
.footer-link { color: var(--text-secondary); transition: color var(--dur-base) var(--ease-out); }
.footer-link:hover { color: var(--brand-cyan); }
/* CONTACT 區塊：手機堆疊時左對齊（與上方品牌/描述同左緣）；桌機才靠右 */
.footer-contact { text-align: left; }
@media (min-width: 768px) { .footer-contact { text-align: right; } }

/* ════════════════════════════════════════════════════════
   SCROLL REVEAL / HERO 進場
   ────────────────────────────────────────────────────────
   重要：揭示動畫改由 GSAP + ScrollTrigger 接管。
   為了「內容絕不可因 JS/GSAP 失敗而永久隱藏」，這些元素的「初始隱藏」
   一律放在 html.gsap-ready 守門之下——只有 main.js 確認 GSAP 真的載入、
   才會替 <html> 加上 gsap-ready。若 GSAP 沒載入（CDN 掛掉等），
   html 不會有 gsap-ready，下列規則都不生效，所有內容維持完全可見。
   真正的進場動畫值由 main.js 以 gsap.set()/gsap.from() 設定，
   這裡的 CSS 隱藏只是「GSAP 接手前的防閃備援」。
   ════════════════════════════════════════════════════════ */
html.gsap-ready .reveal { opacity: 0; will-change: opacity, transform; }
html.gsap-ready .hero-in { opacity: 0; will-change: opacity, transform; }

/* 區段標題列 */
.section-head { max-width: 720px; }
.section-head--split { display: grid; gap: 20px; align-items: end; }
@media (min-width: 768px) { .section-head--split { grid-template-columns: 1fr auto; max-width: none; } }

/* 痛點格：sm 2 欄、lg 維持 2×2 */
.pains-grid { display: grid; gap: 20px; grid-template-columns: 1fr; }
@media (min-width: 640px) { .pains-grid { grid-template-columns: repeat(2, 1fr); } }

/* skip link */
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 999;
  background: var(--brand-blue); color: #fff; padding: 10px 18px; border-radius: var(--radius-sm);
}
.skip-link:focus { left: 16px; top: 16px; }

/* sr-only */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ════════════════════════════════════════════════════════
   reduced-motion 降級
   ════════════════════════════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .slot-glow { animation: none; opacity: .4; }
  .reveal { opacity: 1; transform: none; }
  .hero-in { opacity: 1; transform: none; }
  .steps__line path { stroke-dashoffset: 0; }
  .marquee__track { animation: none !important; }
  .marquee-mask { overflow-x: auto; }
  /* 裝飾向量：靜態顯示、不漂浮（GSAP 端也不會替它註冊任何動畫） */
  .decor { animation: none !important; }
  /* 下滑提示：不浮動、維持可見 */
  .scroll-cue__icon { animation: none !important; transform: none; opacity: 0.9; }
}

/* 低階手機降 blur 強度 */
@media (max-width: 640px) {
  .nav--scrolled { -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); }
}