/* Veye 官網：沿用 App 的「霓虹夜」token（src/phone/phone.css）。
   青色＝可以按、數字、選中；洋紅＝正在發生。光暈只給主要按鈕與正在發生的事。 */
:root {
  --bg: oklch(14% 0.03 280);
  --well: oklch(10.5% 0.025 280);
  --raise: oklch(18% 0.035 280);
  --grid: #20213b80;
  --line-soft: oklch(26% 0.05 282);
  --text: oklch(95% 0.02 220);
  --muted: oklch(76% 0.04 250);
  --faint: oklch(64% 0.05 260);
  --cyan: oklch(86% 0.15 195);
  --cyan-deep: oklch(70% 0.13 210);
  --cyan-ink: oklch(18% 0.04 230);
  --magenta: oklch(66% 0.27 350);
  --violet-soft: oklch(74% 0.16 295);
  --glass: #0f1021b8;
  --hairline: #ffffff17;
  --select: #00efef29;
  --glass-edge: inset 0 1px 0 #ffffff0f, 0 8px 24px #00000066;
  --gradient-action: linear-gradient(90deg, #00efef 0%, #b394ff 100%);
  --r-md: 12px;
  --r-lg: 16px;
  --r-xl: 22px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --display: 'Oxanium', var(--sans);
  --mono: 'Share Tech Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  --sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang TC', 'Noto Sans TC', sans-serif;
  --gutter: clamp(16px, 4vw, 40px);
  --max: 1160px;
  color-scheme: dark;
}
html[lang='zh-Hans'] { --sans: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', sans-serif; }
html[lang='zh-Hant'] { --sans: -apple-system, BlinkMacSystemFont, 'PingFang TC', 'Noto Sans TC', 'Microsoft JhengHei', sans-serif; }

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(60rem 36rem at 100% -10%, #ff2fa024, transparent 60%),
    radial-gradient(40rem 30rem at -10% 30%, #00efef10, transparent 60%),
    linear-gradient(var(--grid) 1px, transparent 1px) 0 0 / 40px 40px,
    linear-gradient(90deg, var(--grid) 1px, transparent 1px) 0 0 / 40px 40px,
    var(--bg);
  color: var(--text);
  font: 16px/1.65 var(--sans);
  overflow-x: hidden;
}
html[lang^='zh'] body { line-height: 1.8; letter-spacing: 0.01em; }
a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; border-radius: 6px; }
h1, h2, h3 { margin: 0; line-height: 1.25; text-wrap: balance; }
p { margin: 0; text-wrap: pretty; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.mono { font-family: var(--mono); letter-spacing: 0.04em; }
.skip { position: absolute; left: 12px; top: -48px; z-index: 30; padding: 8px 14px; border-radius: var(--r-md); background: var(--cyan); color: var(--cyan-ink); }
.skip:focus { top: 12px; }

/* 品牌字：全大寫 VEYE，洋紅／青色 1.5px 錯位 */
.brand { display: inline-flex; color: var(--text); text-decoration: none !important; }
.wordmark {
  position: relative;
  font: 700 22px/1 var(--display);
  letter-spacing: 0.14em;
  text-shadow: -1.5px 0 var(--magenta), 1.5px 0 var(--cyan);
}

/* 頂部列 */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 14px var(--gutter);
  padding-top: max(14px, env(safe-area-inset-top));
  background: #0b0a1ccc;
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  border-bottom: 1px solid var(--hairline);
}
.nav { display: flex; gap: 22px; margin-right: auto; }
.nav a { color: var(--muted); font-size: 15px; }
.nav a:hover { color: var(--text); text-decoration: none; }
.topbar-end { display: flex; align-items: center; gap: 10px; margin-left: auto; }

.lang { position: relative; }
.lang summary {
  display: flex; align-items: center; gap: 6px;
  height: 38px; padding: 0 12px;
  list-style: none; cursor: pointer;
  border: 1px solid var(--hairline); border-radius: var(--r-md);
  color: var(--muted); font: 14px var(--mono);
}
.lang summary::-webkit-details-marker { display: none; }
.lang summary:hover, .lang[open] summary { color: var(--text); border-color: #ffffff30; }
.lang .icon { width: 17px; height: 17px; }
.lang ul {
  position: absolute; right: 0; top: calc(100% + 8px);
  min-width: 150px; margin: 0; padding: 6px; list-style: none;
  background: #0f1021f2; border: 1px solid var(--hairline); border-radius: var(--r-md);
  box-shadow: var(--glass-edge);
}
.lang li a { display: block; padding: 9px 12px; border-radius: 8px; color: var(--text); }
.lang li a:hover { background: #ffffff0d; text-decoration: none; }
.lang li a[aria-current] { background: var(--select); color: var(--cyan); box-shadow: inset 0 0 0 1px #00efef80; }

/* 按鈕：主要＝青→淡紫漸層＋上緣亮線＋青光 */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 52px; padding: 0 26px;
  border-radius: var(--r-md);
  background: var(--gradient-action);
  color: var(--cyan-ink);
  font-weight: 650; font-size: 16px;
  box-shadow: inset 0 1px 0 #ffffff80, 0 0 22px #00efef40;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.btn:hover { text-decoration: none; transform: translateY(-1px); box-shadow: inset 0 1px 0 #ffffff80, 0 0 30px #00efef66; }
.btn:active { transform: translateY(0); }
.btn-small { min-height: 38px; padding: 0 16px; font-size: 14px; }
.btn-ghost { background: var(--glass); color: var(--text); border: 1px solid var(--hairline); box-shadow: var(--glass-edge); }
.btn-ghost:hover { border-color: #00efef80; box-shadow: var(--glass-edge); }

main, .footer-inner { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }

.eyebrow {
  margin-bottom: 14px;
  color: var(--cyan);
  font: 14px var(--mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

/* 主視覺 */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
  padding: clamp(40px, 7vw, 88px) 0 clamp(32px, 5vw, 56px);
}
.hero h1 .line { display: block; white-space: nowrap; }
.hero h1 { font-size: clamp(34px, 4.8vw, 62px); font-weight: 700; letter-spacing: -0.01em; }
html[lang^='zh'] .hero h1 { letter-spacing: 0.02em; }
.hero h1 em {
  font-style: normal;
  background: var(--gradient-action);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 0 18px #00efef55);
}
.lead { margin-top: 20px; max-width: 30em; color: var(--muted); font-size: clamp(17px, 1.7vw, 20px); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.hero-note { margin-top: 16px; color: var(--faint); font: 13px var(--mono); letter-spacing: 0.06em; }
.hero-figure { margin: 0; }
.art { display: block; width: 100%; height: auto; overflow: visible; }
.chips { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 10px; margin: 8px 0 0; padding: 0; list-style: none; }
.chips li {
  padding: 7px 14px; border-radius: 999px;
  border: 1px solid #00efef4d; background: #00efef0f;
  color: var(--cyan); font: 14px var(--mono); letter-spacing: 0.06em;
}
.chips li:nth-child(even) { border-color: #ff2fa04d; background: #ff2fa00f; color: oklch(78% 0.18 350); }

/* 示意圖動畫：凝視圈轉滿、掃描線、閃爍、漂浮 */
.art .ring { stroke-dasharray: 100; stroke-dashoffset: 100; animation: gaze 2.6s var(--ease) infinite; }
@keyframes gaze { 0% { stroke-dashoffset: 100; opacity: 1; } 70% { stroke-dashoffset: 0; opacity: 1; } 85%, 100% { stroke-dashoffset: 0; opacity: 0; } }
.art .scan { animation: scan 4s linear infinite; }
@keyframes scan { from { transform: translateY(0); opacity: 0; } 10% { opacity: 1; } 90% { opacity: 1; } to { transform: translateY(186px); opacity: 0; } }
.art .blink { animation: blink 1.4s steps(2, jump-none) infinite; }
@keyframes blink { 50% { opacity: 0.15; } }
.art .float { animation: float 6s ease-in-out infinite; }
@keyframes float { 50% { transform: translateY(-6px); } }
.art .flow { animation: flow 1.2s linear infinite; }
@keyframes flow { to { stroke-dashoffset: -20; } }
.art .wave { transform-box: fill-box; transform-origin: center; animation: wave 0.9s ease-in-out infinite alternate; }
@keyframes wave { from { transform: scaleY(0.35); } to { transform: scaleY(1); } }
.art .merge-l { animation: merge-l 3s var(--ease) infinite; }
.art .merge-r { animation: merge-r 3s var(--ease) infinite; }
@keyframes merge-l { 0%, 15% { transform: translateX(-14px); } 60%, 100% { transform: translateX(0); } }
@keyframes merge-r { 0%, 15% { transform: translateX(14px); } 60%, 100% { transform: translateX(0); } }
.art .countdown { stroke-dasharray: 100; animation: countdown 5s linear infinite; }
@keyframes countdown { from { stroke-dashoffset: 0; } to { stroke-dashoffset: 100; } }

/* HUD 角框卡片 */
.card {
  background: var(--glass);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  box-shadow: var(--glass-edge);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.hud { position: relative; }
.hud::after {
  content: ''; position: absolute; inset: -1px; border-radius: inherit; pointer-events: none;
  --c: #00efefb3; --l: 18px;
  background:
    linear-gradient(var(--c), var(--c)) top left / var(--l) 1.5px,
    linear-gradient(var(--c), var(--c)) top left / 1.5px var(--l),
    linear-gradient(var(--c), var(--c)) bottom right / var(--l) 1.5px,
    linear-gradient(var(--c), var(--c)) bottom right / 1.5px var(--l);
  background-repeat: no-repeat;
  opacity: 0; transition: opacity 0.25s var(--ease);
}
.hud:hover::after { opacity: 1; }
.hud:hover { border-color: #00efef40; }

/* 你只需要 */
.needs { padding: 36px 0; border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); }
.needs .eyebrow { margin-bottom: 20px; }
.needs-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin: 0; padding: 0; list-style: none; }
.need { display: grid; grid-template-columns: 76px 1fr; grid-template-rows: auto auto auto; column-gap: 16px; align-items: center; }
.need .art { grid-row: 1 / 4; width: 76px; }
.need .k { color: var(--cyan); font: 13px var(--mono); }
.need b { font-size: 18px; }
.need > span:last-child { color: var(--muted); font-size: 15px; }

/* 區段 */
.section { padding: clamp(64px, 9vw, 112px) 0 0; }
.section > h2, .pricing h2 { font-size: clamp(30px, 4vw, 46px); font-weight: 700; }
.section-lead { margin-top: 14px; max-width: 38em; color: var(--muted); font-size: 17px; }
.eyebrow::before { content: '// '; color: var(--magenta); }

.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 40px 0 0; padding: 0; list-style: none; }
.feature { overflow: hidden; display: flex; flex-direction: column; }
.feature-art {
  position: relative; padding: 14px;
  background: radial-gradient(120% 90% at 50% 0%, #1b1840, #08071a 70%);
  border-bottom: 1px solid var(--hairline);
}
.feature-art::after {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background: repeating-linear-gradient(0deg, #ffffff06 0 1px, transparent 1px 3px);
}
.feature-text { padding: 20px 22px 24px; }
.tag { color: var(--faint); font: 12px var(--mono); letter-spacing: 0.1em; }
.feature h3 { margin-top: 6px; font-size: 19px; }
.feature p { margin-top: 6px; color: var(--muted); font-size: 15px; }

.formats > h2 { font-size: clamp(24px, 3vw, 32px) !important; }
.format-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin: 28px 0 0; padding: 0; list-style: none; }
.format-list li {
  display: grid; gap: 10px; justify-items: center; padding: 18px 14px 16px;
  border: 1px solid var(--hairline); border-radius: var(--r-lg); background: #0f102180;
  color: var(--cyan); font: 14px var(--mono); letter-spacing: 0.04em; text-align: center;
}
.format-list .art { max-width: 160px; }
.formats-note { margin-top: 14px; color: var(--faint); font-size: 14.5px; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 40px 0 0; padding: 0; list-style: none; }
.step { padding: 22px 24px 26px; }
.step .art { width: 130px; margin: 0 0 6px -10px; }
.step-n { display: block; color: var(--cyan); font: 600 15px/1 var(--mono); letter-spacing: 0.1em; }
.step h3 { margin-top: 8px; font-size: 20px; }
.step p { margin-top: 8px; color: var(--muted); font-size: 15px; }
.more-link { margin-top: 22px; font-size: 15.5px; }

/* 使用說明頁 */
.guide-jump { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.guide-jump a {
  display: inline-flex; align-items: center; gap: 8px; padding: 9px 16px;
  border: 1px solid var(--hairline); border-radius: var(--r-md); background: var(--glass); color: var(--text); font-size: 15px;
}
.guide-jump a:hover { border-color: #00efef80; text-decoration: none; }
.guide-jump .icon { width: 18px; height: 18px; color: var(--cyan); }
.guide-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 40px; align-items: start; }
.guide-group { padding: 0 24px 26px; overflow: hidden; scroll-margin-top: 90px; }
.guide-art { margin: 0 -24px 22px; }
.guide-head { display: flex; align-items: center; justify-content: space-between; }
.guide-head .icon { width: 30px; height: 30px; color: var(--cyan); }
.pill {
  display: inline-block; padding: 3px 10px; border-radius: 999px;
  background: var(--select); color: var(--cyan); font-size: 13px;
  box-shadow: inset 0 0 0 1px #00efef66;
}
.guide-group h2 { margin-top: 16px; font-size: 21px; }
.guide-lead { margin-top: 8px; color: var(--muted); font-size: 15px; }
.guide-steps { margin: 20px 0 0; padding: 0; list-style: none; counter-reset: g; display: grid; gap: 16px; }
.guide-steps li { position: relative; padding-left: 36px; counter-increment: g; display: grid; gap: 3px; }
.guide-steps li::before {
  content: counter(g); position: absolute; left: 0; top: 1px;
  width: 24px; height: 24px; display: grid; place-items: center;
  border: 1px solid #00efef66; border-radius: 50%;
  color: var(--cyan); font: 13px/1 var(--mono);
}
.guide-steps b { font-size: 15.5px; }
.guide-steps span { color: var(--muted); font-size: 14.5px; }
.icon { flex: none; }

.pricing { position: relative; overflow: hidden; padding: clamp(36px, 6vw, 64px); text-align: center; }
.pricing::before {
  content: ''; position: absolute; inset: 0; border-radius: inherit; padding: 1px;
  background: linear-gradient(120deg, #00efef80, transparent 40%, transparent 60%, #ff2fa080);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude; pointer-events: none;
}
.pricing .section-lead { margin: 14px auto 0; }
.pricing-note { margin: 10px auto 28px; max-width: 34em; color: var(--faint); font-size: 15px; }

.faq { display: grid; gap: 10px; margin-top: 36px; max-width: 820px; }
.faq-item { border: 1px solid var(--hairline); border-radius: var(--r-md); background: #0f102180; }
.faq-item summary {
  display: flex; justify-content: space-between; gap: 16px; align-items: center;
  padding: 18px 20px; cursor: pointer; list-style: none; font-weight: 600; font-size: 16.5px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; color: var(--cyan); font: 22px/1 var(--mono); transition: transform 0.2s var(--ease); }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item[open] { border-color: #00efef55; }
.faq-item p { padding: 0 20px 20px; color: var(--muted); font-size: 15.5px; }

.safety { max-width: 820px; padding-bottom: clamp(64px, 9vw, 112px); }
.safety h2 { font-size: 16px !important; color: var(--muted); }
.safety p { margin-top: 8px; color: var(--faint); font-size: 14.5px; }

/* 條款頁 */
.legal-head { padding: clamp(48px, 8vw, 96px) 0 40px; border-bottom: 1px solid var(--hairline); }
.legal-head h1 { font-size: clamp(32px, 4.4vw, 48px); }
.updated { margin-top: 18px; color: var(--faint); font-size: 14px; }
.legal-body { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 56px; padding: 48px 0 96px; }
.legal-toc { position: sticky; top: 96px; align-self: start; }
.legal-toc p { color: var(--faint); font: 13px var(--mono); letter-spacing: 0.12em; text-transform: uppercase; }
.legal-toc ul { margin: 12px 0 0; padding: 0; list-style: none; display: grid; gap: 6px; }
.legal-toc a { color: var(--muted); }
.legal-toc a:hover { color: var(--cyan); }
.legal-text { max-width: 720px; }
.legal-section + .legal-section { margin-top: 64px; padding-top: 48px; border-top: 1px solid var(--hairline); }
.legal-section h2 { font-size: 28px; }
.legal-section h3 { margin-top: 32px; font-size: 18px; }
.legal-section p, .legal-section li { color: var(--muted); font-size: 16px; }
.legal-section p { margin-top: 10px; }
.legal-section ul { margin: 10px 0 0; padding-left: 1.2em; display: grid; gap: 6px; }
.legal-section li::marker { color: var(--cyan); }

/* 頁尾 */
.footer { border-top: 1px solid var(--hairline); background: #08071280; }
.footer-inner { display: flex; justify-content: space-between; gap: 32px; padding-top: 40px; padding-bottom: max(40px, env(safe-area-inset-bottom)); }
.footer-tag { margin-top: 10px; color: var(--faint); font-size: 14px; }
.footer-meta { display: grid; gap: 6px; text-align: right; color: var(--faint); font-size: 14px; }
.footer-meta a { color: var(--muted); }

/* 語言提示（瀏覽器語言和頁面不同時） */
.lang-hint {
  position: fixed; left: 50%; bottom: max(16px, env(safe-area-inset-bottom)); z-index: 25;
  transform: translateX(-50%);
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap; justify-content: center;
  width: max-content; max-width: calc(100vw - 32px);
  padding: 12px 14px 12px 18px;
  background: #0f1021f2; border: 1px solid var(--hairline); border-radius: var(--r-lg);
  box-shadow: var(--glass-edge); font-size: 15px;
}
.lang-hint[hidden] { display: none; }
.lang-hint .btn { min-height: 36px; padding: 0 14px; font-size: 14px; }
.lang-hint button {
  min-height: 36px; padding: 0 12px; border: 0; border-radius: var(--r-md);
  background: transparent; color: var(--muted); font: inherit; font-size: 14px; cursor: pointer;
}
.lang-hint button:hover { color: var(--text); }

/* 版面：平板與手機 */
@media (max-width: 980px) {
  .nav { display: none; }
  .hero { grid-template-columns: 1fr; }
  .features, .guide-grid, .steps { grid-template-columns: 1fr 1fr; }
  .format-list { grid-template-columns: 1fr 1fr; }
  .needs-list { grid-template-columns: 1fr; gap: 16px; }
}
@media (max-width: 680px) {
  .topbar { gap: 12px; }
  .topbar .btn-small { padding: 0 12px; }
  .features, .guide-grid, .steps { grid-template-columns: 1fr; }
  .actions .btn { flex: 1 1 100%; }
  .chips li { font-size: 13px; padding: 6px 12px; }
  .legal-body { grid-template-columns: 1fr; gap: 32px; }
  .legal-toc { position: static; }
  .legal-toc ul { display: flex; flex-wrap: wrap; gap: 8px 18px; }
  .footer-inner { flex-direction: column; }
  .footer-meta { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .art * { animation: none !important; }
  .art .ring { stroke-dashoffset: 30; }
  .btn, .hud::after { transition: none; }
}