/*
  LiveCaptions 產品站全站唯一共用 CSS(12 頁共用;無建置流程)。
  淺色 token 沿用 auth/pay 頁既有設計(#f5f5f7/#1d1d1f/#1a73e8/白卡 14px);
  深色 hero 是「影片畫面」的敘事性深色,LIVE 紅點為唯一微 accent。
*/

:root {
  --paper: #f5f5f7;
  --card: #ffffff;
  --ink: #1d1d1f;
  --ink-soft: #55555c;
  --line: rgba(0, 0, 0, 0.08);
  --brand: #1a73e8;
  --brand-deep: #1258bd;
  --screen: #0d0d12;
  --on-screen: #f5f6f8;
  --on-screen-soft: rgba(240, 242, 248, 0.64);
  --link-dark: #8ab5ff;
  --live: #ff453a;
  --radius: 14px;
  --radius-s: 10px;
  --shadow: 0 2px 14px rgba(0, 0, 0, 0.08);
  --font-display: 'Bricolage Grotesque', system-ui, -apple-system, sans-serif;
  --font-body: system-ui, -apple-system, sans-serif;
  --font-mono: ui-monospace, 'SF Mono', SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; }

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---------- Header(8+ 頁共用殼:改動請 grep "site-header" 全站同步) ---------- */

.site-header {
  display: flex;
  align-items: center;
  gap: 28px;
  max-width: 1040px;
  margin: 0 auto;
  padding: 18px 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  color: var(--ink);
}
.brand:hover { text-decoration: none; }
.brand img { border-radius: 7px; display: block; }

.site-nav {
  display: flex;
  gap: 22px;
  margin-left: auto;
  font-size: 14px;
}
.site-nav a { color: var(--ink-soft); }

.lang-switch {
  display: flex;
  gap: 4px;
  font-size: 13px;
  font-family: var(--font-mono);
}
.lang-switch a {
  color: var(--ink-soft);
  padding: 3px 8px;
  border-radius: 6px;
}
.lang-switch a[aria-current] {
  color: var(--ink);
  background: rgba(0, 0, 0, 0.07);
}
.lang-switch a:hover { text-decoration: none; background: rgba(0, 0, 0, 0.05); }

/* 深色(hero 上)變體 */
.site-header--dark .brand { color: var(--on-screen); }
.site-header--dark .site-nav a { color: var(--on-screen-soft); }
.site-header--dark .site-nav a:hover { color: var(--on-screen); }
.site-header--dark .lang-switch a { color: var(--on-screen-soft); }
.site-header--dark .lang-switch a[aria-current] {
  color: var(--on-screen);
  background: rgba(255, 255, 255, 0.12);
}
.site-header--dark .lang-switch a:hover { background: rgba(255, 255, 255, 0.09); }

/* ---------- Hero(深色「劇院」區) ---------- */

.hero {
  background: var(--screen);
  color: var(--on-screen);
  padding-bottom: 88px;
}

.hero-inner {
  max-width: 1040px;
  margin: 0 auto;
  padding: 56px 24px 0;
  text-align: center;
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 5.2vw, 3.4rem);
  line-height: 1.12;
  letter-spacing: -0.015em;
  margin: 0 auto 18px;
  max-width: 17em;
}

.hero .sub {
  font-size: 17px;
  color: var(--on-screen-soft);
  max-width: 40em;
  margin: 0 auto 30px;
}

.cta-row {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  padding: 11px 22px;
  border-radius: var(--radius-s);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.35;
}
.btn-primary { background: var(--brand); color: #fff; }
.btn-ghost {
  background: rgba(255, 255, 255, 0.08);
  color: var(--on-screen);
  border: 1px solid rgba(255, 255, 255, 0.22);
}
.btn .soon-tag {
  font-size: 11px;
  font-weight: 400;
  font-family: var(--font-mono);
  opacity: 0.75;
}
/* Coming soon 佔位態:發佈連結就緒後移除 is-soon、span 換 a(href 一行可換) */
.btn.is-soon { cursor: default; filter: saturate(0.55); opacity: 0.9; }

.cta-note {
  font-size: 13px;
  color: var(--on-screen-soft);
  margin: 16px 0 44px;
}

/* ---------- 模擬播放器 + 字幕 demo(簽名元素) ---------- */

.player {
  position: relative;
  max-width: 860px;
  margin: 0 auto;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* 抽象「影片畫面」:多層漸層緩慢平移(電影黃昏色調,避開螢光) */
.player-screen {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 90% at 82% 12%, rgba(214, 137, 66, 0.5), transparent 55%),
    radial-gradient(110% 100% at 12% 88%, rgba(38, 108, 122, 0.65), transparent 60%),
    linear-gradient(160deg, #171c30 0%, #232a49 45%, #17263a 100%);
  background-size: 200% 200%;
}

.live-chip {
  position: absolute;
  top: 14px;
  left: 14px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(6px);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--on-screen);
}
.live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--live);
}

.caption-pill {
  position: absolute;
  left: 50%;
  bottom: 12%;
  transform: translateX(-50%);
  width: min(86%, 620px);
  min-height: 74px;
  padding: 12px 20px;
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(6px);
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 3px;
}
.cap-src {
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.62);
  min-height: 1.4em;
}
.cap-dst {
  font-size: 19px;
  font-weight: 600;
  color: #fff;
  min-height: 1.5em;
}
.cap-dst .tok {
  display: inline-block;
  opacity: 0;
  transform: translateY(3px);
}

.player-bar {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 4px;
  background: rgba(255, 255, 255, 0.14);
}
.player-progress {
  height: 100%;
  width: 34%;
  background: var(--brand);
}

@media (prefers-reduced-motion: no-preference) {
  .player-screen { animation: scene-pan 26s ease-in-out infinite alternate; }
  .live-dot { animation: live-blink 2.2s ease-in-out infinite; }
  .player-progress { animation: bar-crawl 90s linear infinite; }
  .cap-dst .tok { transition: opacity 0.28s ease, transform 0.28s ease; }
  .cap-dst .tok.on { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .cap-dst .tok { opacity: 1; transform: none; }
}

@keyframes scene-pan {
  from { background-position: 0% 0%; }
  to { background-position: 100% 100%; }
}
@keyframes live-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}
@keyframes bar-crawl {
  from { width: 8%; }
  to { width: 96%; }
}

/* ---------- 淺色內容區 ---------- */

.section {
  max-width: 1040px;
  margin: 0 auto;
  padding: 76px 24px 8px;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand);
  margin: 0 0 10px;
}

.section h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  letter-spacing: -0.01em;
  line-height: 1.2;
  margin: 0 0 14px;
}

.section .lede {
  color: var(--ink-soft);
  max-width: 44em;
  margin: 0 0 36px;
}

/* How it works:真實流程順序,編號有資訊意義 */
.steps {
  list-style: none;
  counter-reset: step;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  padding: 0;
  margin: 36px 0 0;
}
.steps li {
  counter-increment: step;
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px 22px;
}
.steps li::before {
  content: counter(step, decimal-leading-zero);
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--brand);
  margin-bottom: 12px;
}
.steps h3 { font-size: 16px; margin: 0 0 6px; }
.steps p { font-size: 14px; color: var(--ink-soft); margin: 0; }

/* Features 六格 */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin: 36px 0 0;
}
.feature-grid article {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
}
.feature-grid h3 { font-size: 15.5px; margin: 0 0 6px; }
.feature-grid p { font-size: 14px; color: var(--ink-soft); margin: 0; }

/* Pricing:三個方案卡並排,試用卡獨立置中於下方 */
.pricing-wrap {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 300px));
  gap: 18px;
  justify-content: center;
  margin: 36px 0 0;
}
.pricing-fineprint {
  font-size: 12.5px;
  color: var(--ink-soft);
  max-width: 660px;
  margin: 16px auto 0;
  text-align: center;
}
.trial-wrap {
  display: grid;
  grid-template-columns: minmax(0, 480px);
  justify-content: center;
  margin: 18px 0 0;
}
.price-card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 30px 28px;
}
.price-card .plan-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-soft);
  margin: 0 0 6px;
}
.price-line {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 2.4rem;
  letter-spacing: -0.02em;
  margin: 0 0 4px;
}
.price-line span { font-size: 1rem; font-weight: 500; color: var(--ink-soft); letter-spacing: 0; }
.price-card ul {
  list-style: none;
  padding: 0;
  margin: 18px 0;
  font-size: 14.5px;
}
.price-card li {
  padding: 7px 0 7px 26px;
  background: no-repeat left center url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 16 16"><path fill="none" stroke="%231a73e8" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" d="M3 8.5 6.5 12 13 4.5"/></svg>');
}
.price-card .fineprint { font-size: 12.5px; color: var(--ink-soft); margin: 14px 0 0; }

.trial-card {
  background: var(--card);
  border: 1px solid rgba(26, 115, 232, 0.35);
  border-radius: var(--radius);
  padding: 26px 24px;
  align-self: start;
}
.trial-card h3 { font-size: 16px; margin: 0 0 8px; }
.trial-card p { font-size: 14px; color: var(--ink-soft); margin: 0 0 6px; }

/* FAQ:原生 details,內容常駐 DOM(審核者/搜尋引擎可讀) */
.faq-list { margin: 32px 0 0; }
.faq-list details {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 0 22px;
  margin-bottom: 10px;
}
.faq-list summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 15px;
  padding: 16px 0;
  list-style: none;
  position: relative;
  padding-right: 28px;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: '+';
  position: absolute;
  right: 2px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  color: var(--ink-soft);
}
.faq-list details[open] summary::after { content: '−'; }
.faq-list details p { font-size: 14px; color: var(--ink-soft); margin: 0 0 16px; }

/* ---------- Footer(共用殼:改動請 grep "site-footer" 全站同步) ---------- */

.site-footer {
  margin-top: 84px;
  border-top: 1px solid var(--line);
  padding: 30px 24px 40px;
}
.site-footer .inner {
  max-width: 1040px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 26px;
  font-size: 13.5px;
  color: var(--ink-soft);
}
.site-footer a { color: var(--ink-soft); }
.site-footer .foot-legal { display: flex; gap: 18px; margin-left: auto; }

/* ---------- 法務頁 ---------- */

.legal {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 24px 20px;
}
.legal h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 2rem;
  letter-spacing: -0.01em;
  margin: 0 0 4px;
}
.legal .doc-meta {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-soft);
  margin: 0 0 28px;
}
.legal h2 { font-size: 1.15rem; margin: 34px 0 10px; }
.legal p, .legal li { font-size: 15px; color: #3a3a40; }
.legal ul { padding-left: 22px; }

/* 中文版「以英文版為準」框註 */
.lang-notice {
  background: #fff;
  border: 1px solid rgba(26, 115, 232, 0.35);
  border-radius: var(--radius-s);
  padding: 12px 16px;
  font-size: 13.5px;
  color: var(--ink-soft);
  margin: 0 0 28px;
}

/* ---------- Responsive ---------- */

@media (max-width: 860px) {
  .steps, .feature-grid { grid-template-columns: 1fr 1fr; }
  .pricing-wrap { grid-template-columns: minmax(0, 420px); }
  .trial-wrap { grid-template-columns: minmax(0, 420px); }
}

@media (max-width: 640px) {
  body { overflow-x: clip; }
  .site-nav { display: none; }
  .lang-switch { margin-left: auto; }
  .steps, .feature-grid { grid-template-columns: 1fr; }
  .hero-inner { padding-top: 36px; }
  .cta-row { flex-direction: column; align-items: center; }
  .btn { width: 100%; max-width: 320px; }
  .cap-dst { font-size: 16px; }
  .caption-pill { min-height: 64px; bottom: 10%; }
  .site-footer .foot-legal { margin-left: 0; }
}