/* NowRecorder 官网（第三版）。品牌：Quiet Signal / 静默信号，见 docs/brand/BRAND_GUIDELINES.md。
   沿用第二版的版式与组件：深色单主题（Obsidian），珊瑚红只给录音，蓝紫只给 AI；英文点缀用斜体衬线。
   只用系统字体、不引外部资源：国内访问不受字体与 CDN 影响。 */

:root {
  --bg: #07111f;
  --bg-2: #091525;
  --panel: #101c30;
  --line: #21314b;
  --line-soft: rgba(141, 162, 192, .14);
  --ink: #f7faff;
  --body: #aebdd2;
  --muted: #7f94b0;
  --coral: #ff5c62;
  --warm: #ff8a63;
  --blue: #6c8eff;
  --violet: #a48bff;
  --mint: #42d7a3;
  --radius: 24px;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
  --serif: ui-serif, "New York", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
  --rounded: ui-rounded, "SF Pro Rounded", var(--sans);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; scroll-padding-top: 80px; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.75 var(--sans);
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
/* 极细的颗粒：压住大面积深色的塑料感 */
body::after {
  content: ""; position: fixed; inset: 0; z-index: 50; pointer-events: none; opacity: .045; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 .9 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, p, ul, ol, figure { margin: 0; }
h1, h2, h3 { font-weight: 700; text-wrap: balance; }
p { text-wrap: pretty; }
ul, ol { padding: 0; list-style: none; }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; border-radius: 6px; }
::selection { background: rgba(255, 92, 98, .35); }

.shell { width: min(1200px, calc(100% - 64px)); margin-inline: auto; }

/* —— 英文点缀：斜体衬线 */
.motto { display: inline-flex; align-items: center; gap: 12px; font: italic 400 19px/1.3 var(--serif); color: var(--body); letter-spacing: .01em; }
.motto.light { color: #ffb3ae; }
.kicker { display: flex; align-items: center; gap: 14px; margin-bottom: 20px; font: italic 400 18px/1.2 var(--serif); color: var(--coral); }
.kicker::before { content: ""; width: 28px; height: 1px; background: currentColor; opacity: .7; }
.heading.center .kicker { justify-content: center; }
.heading.center .kicker::after { content: ""; width: 28px; height: 1px; background: currentColor; opacity: .7; }

/* —— 导航 */
.nav {
  position: fixed; inset: 0 0 auto; z-index: 40;
  background: linear-gradient(180deg, rgba(7, 17, 31, .85), rgba(7, 17, 31, .55));
  backdrop-filter: saturate(1.5) blur(18px); -webkit-backdrop-filter: saturate(1.5) blur(18px);
  border-bottom: 1px solid rgba(141, 162, 192, .1);
}
.nav-inner { height: 68px; display: flex; align-items: center; gap: 40px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 720; font-size: 19px; letter-spacing: -.02em; }
.brand-mark { width: 32px; height: 32px; }
.nav-links { display: flex; gap: 34px; margin-left: auto; font-size: 15px; color: var(--body); }
.nav-links a { transition: color .18s ease; }
.nav-links a:hover { color: var(--ink); }
.nav-cta { padding: 8px 20px; border-radius: 999px; font-size: 14.5px; font-weight: 650; color: var(--bg); background: var(--ink); transition: transform .18s ease, box-shadow .18s ease; }
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 8px 24px rgba(247, 250, 255, .18); }

/* —— 首屏 */
.hero { position: relative; overflow: hidden; isolation: isolate; padding: 156px 0 0; }
.signal { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -2; }
.hero-shade {
  position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(56% 42% at 50% 34%, rgba(7, 17, 31, .78), transparent 72%),
    linear-gradient(180deg, rgba(7, 17, 31, 0) 55%, var(--bg) 100%);
}
.hero-copy { text-align: center; display: flex; flex-direction: column; align-items: center; }
.pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--coral); animation: breathe 2.4s ease-in-out infinite; }
h1 { margin-top: 22px; font-size: clamp(44px, 9.5vw, 124px); line-height: 1; letter-spacing: -.055em; font-weight: 760; white-space: nowrap; }
h1 em {
  font-style: normal;
  background: linear-gradient(115deg, #ffc2a3 0%, var(--coral) 48%, #ff3d52 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 0 34px rgba(255, 92, 98, .32));
}
.lead { max-width: 720px; margin-top: 30px; color: var(--body); font-size: clamp(16px, 1.35vw, 18.5px); line-height: 1.9; }

.actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 36px; }
.btn {
  min-width: 228px; padding: 13px 22px; border-radius: 15px; display: inline-flex; align-items: center; gap: 13px;
  border: 1px solid transparent; transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn > span { display: flex; flex-direction: column; text-align: left; line-height: 1.35; }
.btn b { font-size: 15.5px; font-weight: 680; }
.btn small { font-size: 12.5px; opacity: .7; }
.btn-icon { width: 23px; height: 23px; flex: none; }
.btn-primary { color: var(--bg); background: linear-gradient(180deg, #ffffff, #e6eefb); box-shadow: 0 0 0 1px rgba(255, 255, 255, .5) inset, 0 18px 44px rgba(108, 142, 255, .2); }
.btn-primary:hover { box-shadow: 0 0 0 1px rgba(255, 255, 255, .5) inset, 0 22px 54px rgba(255, 92, 98, .26); }
.btn-secondary { color: var(--ink); background: rgba(16, 28, 48, .7); border-color: rgba(141, 162, 192, .26); backdrop-filter: blur(14px); }
.btn-secondary:hover { border-color: rgba(141, 162, 192, .55); background: rgba(24, 40, 66, .8); }
.btn-ghost { color: var(--ink); background: rgba(247, 250, 255, .07); border-color: rgba(247, 250, 255, .22); backdrop-filter: blur(10px); }
.btn-ghost:hover { background: rgba(247, 250, 255, .13); }
.trust { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 10px 14px; margin-top: 26px; color: var(--muted); font-size: 14px; letter-spacing: .02em; }
.trust i { width: 3px; height: 3px; border-radius: 50%; background: currentColor; opacity: .6; }
.trust-link { color: var(--ink); border-bottom: 1px solid rgba(247, 250, 255, .35); transition: border-color .2s ease; }
.trust-link:hover { border-color: var(--ink); }
.soon-tag { padding: 2px 10px; border-radius: 999px; border: 1px solid rgba(141, 162, 192, .3); color: var(--body); font-size: 12.5px; }

/* 产品舞台 */
.stage { position: relative; max-width: 1100px; margin: 56px auto 0; }
.frame { position: relative; }
/* 产品画面是 codex 画的整幅场景：光影、倒影都在图里，四周与页面同色；边缘再淡出一圈，放在哪种底色上都没有接缝 */
.frame img {
  width: 100%;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent), linear-gradient(transparent, #000 7%, #000 93%, transparent);
  -webkit-mask-composite: source-in; mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent), linear-gradient(transparent, #000 7%, #000 93%, transparent); mask-composite: intersect;
}
.chip {
  position: absolute; z-index: 3; display: flex; align-items: center; gap: 11px; padding: 11px 16px 11px 13px; border-radius: 16px;
  background: rgba(16, 28, 48, .8); border: 1px solid rgba(141, 162, 192, .26); backdrop-filter: blur(16px) saturate(1.4);
  box-shadow: 0 24px 50px rgba(0, 0, 0, .45), inset 0 1px 0 rgba(255, 255, 255, .06);
  animation: float 6s ease-in-out infinite;
}
.chip > span { display: flex; flex-direction: column; line-height: 1.35; }
.chip b { font-size: 14.5px; font-weight: 650; }
.chip small { font-size: 12.5px; color: var(--muted); }
.chip > svg { width: 20px; height: 20px; color: var(--violet); }
.dot { width: 9px; height: 9px; border-radius: 50%; flex: none; }
.dot.rec { background: var(--coral); box-shadow: 0 0 12px var(--coral); }
/* 首屏图按原尺寸以内显示；标签骑在画面边上，不压住屏幕里的字（位置按首屏图调） */
.hero .stage { max-width: 1020px; margin-top: 16px; }
.c1 { left: -3%; top: 36%; animation-delay: -1s; }
.c2 { right: -4%; top: 3%; animation-delay: -3s; }

/* 悬浮球（桌面细节里页面画的版本） */
.ball { position: relative; width: 64px; height: 64px; border-radius: 50%; box-shadow: 0 12px 28px rgba(0, 0, 0, .5); }
/* 图标母版四周有透明留白：放大后裁成正圆，和真实悬浮球一样是一颗满幅的深色球 */
.ball img { width: 100%; height: 100%; transform: scale(1.25); clip-path: circle(40% at 50% 50%); }
.badge { position: absolute; top: -3px; right: -3px; width: 24px; height: 24px; border-radius: 50%; display: grid; place-items: center; border: 2px solid var(--bg); color: #fff; }
.badge svg { width: 13px; height: 13px; }
.badge.rec { background: var(--coral); }
.badge.rec::after { content: ""; width: 8px; height: 8px; border-radius: 50%; background: #fff; }
.badge.doc { background: #1ba6bf; }
.badge.ai { background: #7c5cf0; }
.badge.mic { background: #385dd0; }

/* —— 宣言 */
.manifesto { padding: 168px 0 152px; }
.m-line {
  font-size: clamp(32px, 5vw, 70px); line-height: 1.2; letter-spacing: -.045em; font-weight: 720;
  background: linear-gradient(90deg, #f7faff, #9fb2cf); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.m-line em { font-style: normal; background: linear-gradient(115deg, #ffc2a3, var(--coral) 60%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.m-note { max-width: 580px; margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--line-soft); color: var(--body); font-size: 17px; line-height: 1.95; }

/* —— 通用段落 */
.section { position: relative; padding-block: 128px; }
/* 色带只在上半段微微提亮：下半段回到页面底色，产品画面放进来没有色差 */
.band { background: linear-gradient(180deg, var(--bg-2), var(--bg) 42%); }
.band::before, .band::after { content: ""; position: absolute; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(141, 162, 192, .22), transparent); }
.band::before { top: 0; } .band::after { bottom: 0; }
.heading h2 { font-size: clamp(30px, 3.8vw, 52px); line-height: 1.16; letter-spacing: -.045em; font-weight: 720; }
.heading > p:not(.kicker) { margin-top: 22px; max-width: 580px; color: var(--body); font-size: 17px; line-height: 1.9; }
.heading.center { text-align: center; margin: 0 auto 64px; max-width: 820px; }
.heading.center > p:not(.kicker) { margin-inline: auto; }
.heading.wide { max-width: 720px; margin-bottom: 56px; }
.heading.sticky { position: sticky; top: 108px; align-self: start; }
.numeral { display: block; font: italic 400 64px/1 var(--serif); color: rgba(141, 162, 192, .45); }

/* —— 一场谈话的路径：四个节点串在一条线上，一粒光沿线走过 */
.path { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); }
.path::before { content: ""; position: absolute; left: 0; right: 0; top: 7px; height: 1px; background: linear-gradient(90deg, rgba(255, 92, 98, .5), rgba(108, 142, 255, .45) 45%, rgba(164, 139, 255, .5) 70%, rgba(141, 162, 192, .3)); }
.path::after { content: ""; position: absolute; top: 6px; left: 0; width: 90px; height: 3px; border-radius: 3px; background: linear-gradient(90deg, transparent, #fff, transparent); opacity: .7; animation: travel 6s cubic-bezier(.45, 0, .55, 1) infinite; }
.path li { position: relative; padding: 44px 32px 8px 0; }
.path li + li { padding-left: 32px; border-left: 1px solid var(--line-soft); }
.node { position: absolute; top: 0; left: 0; width: 15px; height: 15px; border-radius: 50%; background: var(--bg); border: 2px solid var(--blue); box-shadow: 0 0 14px rgba(108, 142, 255, .5); }
.path li + li .node { left: 32px; }
.node.rec { border-color: var(--coral); background: var(--coral); box-shadow: 0 0 0 5px rgba(255, 92, 98, .14), 0 0 16px rgba(255, 92, 98, .7); animation: breathe 2.2s ease-in-out infinite; }
.node.ai { border-color: var(--violet); box-shadow: 0 0 16px rgba(164, 139, 255, .65); }
.path .numeral { font-size: 34px; }
.path h3 { margin-top: 20px; font-size: 30px; letter-spacing: -.03em; }
.path .where { margin-top: 6px; color: var(--ink); font-size: 14px; font-weight: 600; letter-spacing: .04em; opacity: .75; }
.path p:not(.where) { margin-top: 14px; color: var(--body); font-size: 15px; line-height: 1.85; }

/* —— 口袋里 */
.pocket-shot { max-width: 900px; margin: -48px auto 8px; }
.feats { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line-soft); }
.feats li { position: relative; padding: 30px 26px 32px 0; }
.feats li + li { padding-left: 26px; border-left: 1px solid var(--line-soft); }
.feats h3 { font-size: 19px; letter-spacing: -.02em; }
.feats p { margin-top: 8px; color: var(--body); font-size: 15px; line-height: 1.8; }

/* Apple Watch：页面画的手表，文字照真实的手表录音页 */
.wrist { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 64px; align-items: center; margin-top: 96px; padding: 48px 56px; border-radius: 32px; border: 1px solid var(--line-soft); background: radial-gradient(70% 120% at 0% 50%, rgba(255, 92, 98, .08), transparent 60%), linear-gradient(165deg, rgba(255, 255, 255, .045), rgba(255, 255, 255, .01)); overflow: hidden; }
.wrist-copy h3 { font-size: clamp(26px, 2.6vw, 36px); line-height: 1.25; letter-spacing: -.03em; }
.wrist-copy > p:not(.cell-kicker) { margin-top: 18px; max-width: 520px; color: var(--body); font-size: 16px; line-height: 1.9; }
.watch { position: relative; width: 214px; padding: 0 0 0 0; }
.watch::before, .watch::after { content: ""; position: absolute; left: 34px; right: 34px; height: 60px; background: linear-gradient(180deg, #121a27, #0b111b); z-index: -1; }
.watch::before { top: -46px; border-radius: 22px 22px 6px 6px; }
.watch::after { bottom: -46px; border-radius: 6px 6px 22px 22px; }
.w-case { position: relative; padding: 11px; border-radius: 54px; background: linear-gradient(145deg, #2b3343, #12161e 55%, #1d2330); box-shadow: 0 30px 70px rgba(0, 0, 0, .55), inset 0 1px 0 rgba(255, 255, 255, .12); }
.w-case::after { content: ""; position: absolute; right: -6px; top: 70px; width: 7px; height: 38px; border-radius: 4px; background: linear-gradient(90deg, #39404e, #1a1f29); }
.w-screen { height: 232px; padding: 16px 16px 14px; border-radius: 44px; background: #000; display: flex; flex-direction: column; align-items: center; font-family: var(--rounded); }
.w-top { width: 100%; display: flex; justify-content: space-between; padding-inline: 8px; font-size: 13.5px; font-weight: 600; }
.w-st { color: var(--coral); }
.w-title { margin-top: 10px; font-size: 12.5px; color: rgba(255, 255, 255, .6); }
.w-time { margin-top: 2px; font-size: 38px; line-height: 1.15; font-weight: 600; letter-spacing: -.01em; font-variant-numeric: tabular-nums; }
.w-wave { height: 24px; display: flex; align-items: center; gap: 3px; margin-top: 6px; }
.w-wave i { width: 3px; height: 30%; border-radius: 2px; background: var(--coral); animation: level 1.2s ease-in-out infinite; }
.w-wave i:nth-child(2n) { animation-delay: .2s; height: 60%; } .w-wave i:nth-child(3n) { animation-delay: .45s; height: 85%; } .w-wave i:nth-child(5n) { animation-delay: .1s; height: 45%; }
.w-ctl { position: relative; width: 100%; margin-top: auto; height: 46px; display: flex; justify-content: center; align-items: center; }
.w-pause { width: 46px; height: 46px; border-radius: 50%; background: rgba(255, 255, 255, .18); position: relative; }
.w-pause::before, .w-pause::after { content: ""; position: absolute; top: 15px; width: 5px; height: 16px; border-radius: 2px; background: #fff; }
.w-pause::before { left: 16px; } .w-pause::after { right: 16px; }
.w-stop { position: absolute; right: 6px; width: 34px; height: 34px; border-radius: 50%; border: 2.5px solid rgba(255, 255, 255, .85); display: grid; place-items: center; }
.w-stop::after { content: ""; width: 11px; height: 11px; border-radius: 3px; background: var(--coral); }

/* —— 桌面上 */
.desk-stage { margin: -24px auto 56px; }

/* —— 回溯：图按原尺寸以内显示，界面小字不被放大 */
.library-shot { max-width: 1060px; margin: -24px auto -56px; }

/* —— 场合 */
.occasions { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line-soft); border-left: 1px solid var(--line-soft); }
.occasions li { position: relative; min-height: 188px; padding: 28px 28px; border-right: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); display: flex; flex-direction: column; overflow: hidden; }
.occasions span { font: 500 13.5px var(--mono); color: var(--muted); letter-spacing: .1em; }
.occasions h3 { margin-top: auto; font-size: 23px; letter-spacing: -.02em; }
.occasions p { margin-top: 8px; color: var(--body); font-size: 15px; line-height: 1.8; }

/* —— 桌面细节 bento */
.bento { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.cell { position: relative; padding: 30px; border-radius: 24px; border: 1px solid var(--line-soft); background: linear-gradient(165deg, rgba(255, 255, 255, .05), rgba(255, 255, 255, .012)); overflow: hidden; display: flex; flex-direction: column; }
.cell-kicker { margin-bottom: 12px; color: var(--muted); font: italic 400 16px var(--serif); }
.cell h3 { font-size: clamp(21px, 2vw, 27px); line-height: 1.3; letter-spacing: -.025em; }
.cell > p:not(.cell-kicker):not(.keys) { margin-top: 10px; color: var(--body); font-size: 15px; line-height: 1.8; }
.b-ball { grid-column: span 4; } .b-key { grid-column: span 2; }
.b-dict { grid-column: span 3; } .b-now { grid-column: span 3; }
.balls { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: auto; padding-top: 30px; }
.balls figure { display: flex; flex-direction: column; align-items: center; gap: 14px; padding: 22px 0 16px; border-radius: 18px; background: rgba(7, 17, 31, .55); border: 1px solid var(--line-soft); }
.balls figcaption { color: var(--muted); font-size: 13.5px; }
.balls figure:first-child .ball { animation: glow-rec 2.2s ease-in-out infinite; }
.keycaps { display: flex; gap: 10px; margin: 6px 0 auto; }
.keycaps kbd { display: grid; place-items: center; min-width: 96px; height: 62px; border-radius: 14px; border: 1px solid #2c3f5f; border-bottom-width: 4px; background: linear-gradient(180deg, #17263f, #0e1a2d); font: 650 17px var(--sans); box-shadow: 0 10px 24px rgba(0, 0, 0, .35); animation: press 2.6s ease-in-out infinite; }
.keycaps kbd:nth-child(2) { animation-delay: .32s; }
.b-key h3 { margin-top: 34px; }
.dictate { margin-top: 26px; border: 1px solid var(--line-soft); border-radius: 16px; background: rgba(7, 17, 31, .6); overflow: hidden; }
.dictate-box { min-height: 104px; padding: 18px 18px 8px; font-size: 16px; line-height: 1.75; }
.dictate-text { background: linear-gradient(90deg, var(--ink) 50%, transparent 50%); background-size: 200% 100%; -webkit-background-clip: text; background-clip: text; color: transparent; animation: speak 7s steps(36, end) infinite; }
.caret { display: inline-block; width: 2px; height: 1.1em; margin-left: 2px; vertical-align: -3px; background: var(--blue); animation: blink 1s step-end infinite; }
.dictate-bar { display: flex; align-items: center; gap: 12px; padding: 11px 14px; border-top: 1px solid var(--line-soft); color: var(--muted); font-size: 13px; }
.mic-dot { width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; background: #385dd0; color: #fff; box-shadow: 0 0 18px rgba(108, 142, 255, .6); }
.mic-dot svg { width: 14px; height: 14px; }
.wave { display: flex; align-items: center; gap: 3px; height: 22px; }
.wave i { width: 3px; height: 30%; border-radius: 3px; background: var(--blue); animation: level 1.1s ease-in-out infinite; }
.wave i:nth-child(2) { animation-delay: .1s; } .wave i:nth-child(3) { animation-delay: .25s; } .wave i:nth-child(4) { animation-delay: .05s; } .wave i:nth-child(5) { animation-delay: .35s; } .wave i:nth-child(6) { animation-delay: .15s; } .wave i:nth-child(7) { animation-delay: .3s; } .wave i:nth-child(8) { animation-delay: .2s; } .wave i:nth-child(9) { animation-delay: .4s; }
.dictate-bar small { margin-left: auto; }
.keys { margin-top: auto; padding-top: 22px; display: flex; flex-wrap: wrap; align-items: center; gap: 8px; color: var(--muted); font-size: 13.5px; }
.keys i { width: 3px; height: 3px; border-radius: 50%; background: currentColor; opacity: .6; margin-inline: 4px; }
kbd { padding: 3px 9px; border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 8px; background: var(--bg); color: var(--ink); font: 600 12px var(--sans); }
.now-demo { display: flex; flex-direction: column; align-items: center; gap: 14px; margin: 4px 0 30px; padding: 22px 18px; border-radius: 18px; border: 1px solid var(--line-soft); background: rgba(7, 17, 31, .55); }
.now-row { position: relative; width: 100%; display: grid; grid-template-columns: 48px 1fr auto; align-items: center; gap: 12px; padding: 10px 12px; border-radius: 12px; font-size: 14.5px; background: rgba(255, 255, 255, .03); }
.now-row span { font: 500 12.5px var(--mono); color: var(--muted); }
.now-row b { font-weight: 560; }
.now-row.go { background: rgba(108, 142, 255, .12); }
.prog-line { position: absolute; left: 12px; right: 12px; bottom: 4px; height: 2px; border-radius: 2px; background: linear-gradient(90deg, var(--blue), var(--violet)); transform-origin: left; animation: fillline 3.2s ease-in-out infinite; }
.btn-mini { padding: 8px 14px; border-radius: 10px; font-size: 13px; font-weight: 650; color: var(--bg); background: var(--ink); animation: tap 3.2s ease-in-out infinite; }
.st { display: inline-flex; align-items: center; gap: 7px; font-size: 12.5px; font-style: normal; color: var(--body); }
.st::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: #66788f; }
.st.blue { color: var(--blue); } .st.blue::before { background: var(--blue); box-shadow: 0 0 10px var(--blue); }
.st.muted { color: var(--muted); }

/* —— 私密 */
.split { display: grid; grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr); gap: 64px; align-items: center; }
.split .heading h2 { font-size: clamp(30px, 3.4vw, 46px); }
.points { margin-top: 32px; border-top: 1px solid var(--line-soft); }
.points li { display: grid; grid-template-columns: 7em 1fr; gap: 16px; padding: 15px 0; border-bottom: 1px solid var(--line-soft); font-size: 15px; }
.points b { font-weight: 650; }
.points span { color: var(--body); line-height: 1.7; }

/* 图四周带一圈留白，向右多占一点，界面不至于太小 */
@media (min-width: 1041px) { .files-shot { margin: 0 -7% 0 -5%; } }

/* —— 开始 */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 16px; }
.steps li { position: relative; padding: 30px 30px 32px; border-radius: 24px; border: 1px solid var(--line-soft); background: linear-gradient(165deg, rgba(255, 255, 255, .05), rgba(255, 255, 255, .012)); overflow: hidden; }
.steps .numeral { font-size: 42px; color: var(--coral); opacity: .85; }
.steps h3 { margin-top: 24px; font-size: 22px; letter-spacing: -.02em; }
.steps p { margin-top: 10px; color: var(--body); font-size: 15px; line-height: 1.8; }

/* —— 下载：四个平台，能下载的给按钮，没上架的照实写 */
.platforms { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 56px; }
.plat { position: relative; display: flex; flex-direction: column; padding: 28px 26px 26px; border-radius: 24px; border: 1px solid var(--line-soft); background: rgba(7, 17, 31, .55); overflow: hidden; }
.plat-icon { width: 28px; height: 28px; color: var(--ink); }
.plat h3 { margin-top: 22px; font-size: 20px; letter-spacing: -.02em; }
.plat p { margin: 6px 0 26px; color: var(--muted); font-size: 14px; }
.plat-btn, .plat-soon { margin-top: auto; display: inline-flex; align-items: center; justify-content: center; gap: 9px; height: 44px; border-radius: 13px; font-size: 14.5px; font-weight: 650; }
.plat-btn { color: var(--bg); background: var(--ink); transition: transform .2s ease, box-shadow .2s ease; }
.plat-btn:hover { transform: translateY(-2px); box-shadow: 0 14px 34px rgba(247, 250, 255, .16); }
.plat-btn svg { width: 18px; height: 18px; }
.plat-btn span { font: 600 13.5px var(--mono); opacity: .7; }
.plat-soon { color: var(--body); border: 1px dashed rgba(141, 162, 192, .35); font-weight: 560; }
/* 安卓：电脑上看时给二维码（指向本站的安卓下载页），手机上看时给按钮 */
.plat-qr { margin-top: auto; display: flex; align-items: center; gap: 16px; }
.plat-qr[hidden], .plat-qr:not([hidden]) + .plat-btn { display: none; }
.qr { flex: none; width: 92px; height: 92px; padding: 7px; border-radius: 12px; background: #fff; }
.qr svg { display: block; width: 100%; height: 100%; fill: var(--bg); }
.qr-text { display: flex; flex-direction: column; gap: 4px; font-size: 14px; }
.qr-text b { font-weight: 650; }
.qr-text a { color: var(--muted); font-size: 13px; transition: color .2s ease; }
.qr-text a:hover { color: var(--ink); }

/* 安卓安装方式弹窗：与安卓下载页（/android/）同一套视觉，二维码放大、说明放在旁边 */
html:has(dialog[open]) { overflow: hidden; }
.dl-dialog { width: min(680px, calc(100% - 32px)); padding: 0; border: 1px solid rgba(141, 162, 192, .26); border-radius: 26px; background: #0a1424; color: var(--ink); box-shadow: 0 40px 100px rgba(0, 0, 0, .6); }
.dl-dialog::backdrop { background: rgba(3, 8, 16, .72); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
.dl-dialog[open] { animation: pop .22s cubic-bezier(.2, .7, .2, 1); }
.dlg-inner { position: relative; padding: 40px 38px 34px; background: radial-gradient(80% 55% at 50% 0%, rgba(108, 142, 255, .16), transparent 72%); }
.dlg-close { position: absolute; top: 16px; right: 16px; width: 36px; height: 36px; border: 0; border-radius: 50%; background: rgba(255, 255, 255, .06); color: var(--body); font: 300 24px/1 var(--sans); cursor: pointer; transition: background .2s ease, color .2s ease; }
.dlg-close:hover { background: rgba(255, 255, 255, .12); color: var(--ink); }
.dlg-head { display: flex; flex-direction: column; align-items: center; text-align: center; }
.dlg-head .dl-icon { width: 72px; height: 72px; }
.dlg-head h3 { margin-top: 16px; font-size: 23px; letter-spacing: -.02em; }
.dlg-head p { margin-top: 8px; color: var(--body); font-size: 15px; line-height: 1.8; }
.dlg-body { margin-top: 30px; display: grid; grid-template-columns: auto minmax(0, 1fr); align-items: start; gap: 32px; }
.dlg-qr { display: flex; flex-direction: column; align-items: center; gap: 12px; }
.dlg-qr figcaption { font-size: 13.5px; font-weight: 600; }
.qr.qr-lg { width: 180px; height: 180px; padding: 11px; border-radius: 16px; }
.dlg-text .dl-steps { margin-top: 0; }
.dlg-text .dl-steps li { grid-template-columns: 3.6em 1fr; padding: 12px 0; font-size: 14px; }
.dlg-req { margin-top: 14px; color: var(--muted); font-size: 13px; }
.dlg-link { display: inline-block; margin-top: 18px; color: var(--ink); font-size: 14px; border-bottom: 1px solid rgba(247, 250, 255, .35); transition: border-color .2s ease; }
.dlg-link:hover { border-color: var(--ink); }

/* —— 安卓下载页（/android/）：手机上扫码打开 */
.dl-page { min-height: 100vh; display: flex; justify-content: center; padding: 56px 20px 48px; background: radial-gradient(90% 50% at 50% 0%, rgba(108, 142, 255, .12), transparent 70%); }
.dl-card { width: min(440px, 100%); display: flex; flex-direction: column; align-items: center; text-align: center; }
.dl-icon { width: 96px; height: 96px; filter: drop-shadow(0 16px 30px rgba(0, 0, 0, .5)); }
.dl-card h1 { margin-top: 20px; font-size: 27px; line-height: 1.3; letter-spacing: -.02em; white-space: normal; }
.dl-lead { margin-top: 12px; color: var(--body); font-size: 16px; line-height: 1.8; }
.dl-ios { display: none; margin-top: 22px; padding: 10px 14px; border-radius: 12px; background: rgba(255, 181, 71, .1); color: #ffcf8a; font-size: 14px; }
.on-ios .dl-ios { display: block; }
.dl-btn { width: 100%; margin-top: 32px; justify-content: center; }
.dl-req { margin-top: 12px; color: var(--muted); font-size: 13px; }
.dl-steps { width: 100%; margin-top: 36px; text-align: left; border-top: 1px solid var(--line-soft); }
.dl-steps li { display: grid; grid-template-columns: 4em 1fr; gap: 12px; padding: 16px 0; border-bottom: 1px solid var(--line-soft); font-size: 14.5px; }
.dl-steps b { font-weight: 650; }
.dl-steps span { color: var(--body); line-height: 1.75; }
.dl-back { margin-top: 28px; color: var(--muted); font-size: 14px; }
.dl-back:hover { color: var(--ink); }
/* 微信、QQ、微博里：整页盖一层，箭头指向右上角的菜单 */
.dl-inapp { display: none; position: fixed; inset: 0; z-index: 60; justify-content: flex-end; padding: 22px 20px; background: rgba(5, 10, 20, .9); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); text-align: right; }
.in-app .dl-inapp { display: flex; }
.dl-inapp p { margin-top: 70px; font-size: 17px; line-height: 1.8; }
.dl-inapp b { font-size: 20px; letter-spacing: 2px; }
.dl-arrow { position: absolute; top: 8px; right: 26px; font-size: 52px; line-height: 1; color: var(--ink); }
.dl-arrow::before { content: "↗"; }

/* 鼠标跟随光斑 */
.spot::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; opacity: 0; transition: opacity .3s ease;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%), rgba(108, 142, 255, .12), transparent 60%);
}
.spot:hover::after { opacity: 1; }
.cell, .steps li, .occasions li, .plat { transition: border-color .3s ease; }
.cell:hover, .steps li:hover, .plat:hover { border-color: rgba(141, 162, 192, .34); }

/* —— 问答 */
.faq-grid { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 80px; align-items: start; }
.faq-list { border-top: 1px solid var(--line-soft); }
.faq-list details { border-bottom: 1px solid var(--line-soft); }
.faq-list summary { position: relative; padding: 20px 44px 20px 2px; list-style: none; cursor: pointer; font-size: 17px; font-weight: 620; transition: color .2s ease; }
.faq-list summary:hover { color: #fff; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 6px; top: 50%; transform: translateY(-50%); color: var(--muted); font-size: 24px; font-weight: 300; transition: transform .25s ease, color .25s ease; }
.faq-list details[open] summary::after { transform: translateY(-50%) rotate(45deg); color: var(--coral); }
.faq-list details p { padding: 0 44px 22px 2px; color: var(--body); font-size: 15.5px; line-height: 1.9; }

/* —— 收尾 */
.final { position: relative; overflow: hidden; isolation: isolate; padding-block: 160px; text-align: center; border-top: 1px solid var(--line-soft); }
.final-art { position: absolute; inset: 0; z-index: -2; width: 100%; height: 100%; object-fit: cover; opacity: .8; }
.final-shade { position: absolute; inset: 0; z-index: -1; background: radial-gradient(60% 55% at 50% 52%, rgba(7, 17, 31, .35), var(--bg) 82%), linear-gradient(180deg, var(--bg), transparent 30%); }
.final-inner { display: flex; flex-direction: column; align-items: center; }
.final-mark { width: 60px; height: 60px; margin-bottom: 24px; filter: drop-shadow(0 0 30px rgba(255, 92, 98, .5)); }
.final h2 { margin-top: 16px; font-size: clamp(30px, 4vw, 54px); line-height: 1.18; letter-spacing: -.045em; font-weight: 720; }

/* —— 页脚 */
.footer { border-top: 1px solid var(--line-soft); background: #050d18; }
.footer-inner { min-height: 88px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 20px; font-size: 14px; color: var(--muted); }
.footer-inner .brand { color: var(--ink); font-size: 18px; }
.footer-inner .brand-mark { width: 30px; height: 30px; }
.footer-inner .motto { font-size: 17px; color: var(--muted); }
.footer-inner > span { justify-self: end; }

/* —— 进场 */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .9s ease, transform .9s cubic-bezier(.2, .7, .2, 1); transition-delay: var(--d, 0s); }
.reveal.in { opacity: 1; transform: none; }

@keyframes breathe { 0%, 100% { box-shadow: 0 0 0 0 rgba(255, 92, 98, .5); } 50% { box-shadow: 0 0 0 7px rgba(255, 92, 98, 0); } }
@keyframes glow-rec { 0%, 100% { box-shadow: 0 12px 28px rgba(0, 0, 0, .5), 0 0 0 0 rgba(255, 92, 98, 0); } 50% { box-shadow: 0 12px 28px rgba(0, 0, 0, .5), 0 0 0 8px rgba(255, 92, 98, .18); } }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
@keyframes level { 0%, 100% { height: 22%; } 50% { height: 96%; } }
@keyframes travel { from { left: 0; } to { left: calc(100% - 90px); } }
@keyframes speak { 0% { background-position: 100% 0; } 70%, 100% { background-position: 0 0; } }
@keyframes blink { 50% { opacity: 0; } }
@keyframes press { 0%, 62%, 100% { transform: translateY(0); border-bottom-width: 4px; } 70%, 80% { transform: translateY(3px); border-bottom-width: 1px; } }
@keyframes tap { 0%, 55%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(247, 250, 255, 0); } 66% { transform: scale(.94); } 78% { transform: scale(1); box-shadow: 0 0 0 9px rgba(247, 250, 255, .16); } }
@keyframes fillline { 0%, 55% { transform: scaleX(0); } 100% { transform: scaleX(1); } }
@keyframes pop { from { opacity: 0; transform: translateY(10px) scale(.98); } to { opacity: 1; transform: none; } }

/* —— 窄屏 */
@media (max-width: 1040px) {
  .nav-links { display: none; }
  .nav-cta { margin-left: auto; }
  .section { padding-block: 104px; }
  .manifesto { padding: 128px 0 120px; }
  /* 路径改成竖线：节点在左，内容在右 */
  .path { grid-template-columns: 1fr; padding-left: 40px; }
  .path::before { left: 7px; right: auto; top: 0; bottom: 0; width: 1px; height: auto; background: linear-gradient(180deg, rgba(255, 92, 98, .5), rgba(108, 142, 255, .45) 45%, rgba(164, 139, 255, .5) 70%, rgba(141, 162, 192, .3)); }
  .path::after { display: none; }
  .path li, .path li + li { padding: 0 0 52px; border-left: 0; }
  .path li:last-child { padding-bottom: 0; }
  .node, .path li + li .node { left: -40px; top: 10px; }
  .path h3 { margin-top: 14px; }
  .feats { grid-template-columns: 1fr 1fr; }
  .feats li, .feats li + li { padding: 30px 24px 32px 0; border-left: 0; border-bottom: 1px solid var(--line-soft); }
  .feats li:nth-child(2n) { padding-left: 24px; border-left: 1px solid var(--line-soft); }
  .wrist { grid-template-columns: 1fr; justify-items: center; gap: 72px; padding: 80px 40px 48px; text-align: center; }
  .wrist-copy > p:not(.cell-kicker) { margin-inline: auto; }
  .occasions { grid-template-columns: 1fr 1fr; }
  .bento { grid-template-columns: repeat(2, 1fr); }
  .b-ball, .b-dict, .b-now { grid-column: span 2; } .b-key { grid-column: span 2; }
  .split, .faq-grid { grid-template-columns: 1fr; gap: 56px; }
  .heading.sticky { position: static; }
  .steps { grid-template-columns: 1fr; }
  .platforms { grid-template-columns: 1fr 1fr; }
  .c1 { display: none; }
  .c2 { top: 0; }
}

@media (max-width: 680px) {
  .shell { width: calc(100% - 32px); }
  .nav-inner { height: 64px; }
  .brand { font-size: 18px; }
  .brand-mark { width: 30px; height: 30px; }
  .nav-cta { padding: 8px 16px; font-size: 14px; }
  .hero { padding-top: 128px; }
  .lead br { display: none; }
  .actions { flex-direction: column; width: 100%; }
  .btn { width: 100%; }
  .stage { margin-top: 40px; }
  /* 手机上产品画面撑满屏宽，图四周本就是页面底色 */
  .frame { margin-inline: -16px; }
  .chip { display: none; }
  .section { padding-block: 88px; }
  .manifesto { padding: 110px 0 100px; }
  .m-line { font-size: min(8vw, 30px); letter-spacing: -.03em; }
  .heading.center { margin-bottom: 56px; }
  .heading.wide { margin-bottom: 48px; }
  .pocket-shot { margin: -16px -16px 8px; }
  .feats { grid-template-columns: 1fr; }
  .feats li, .feats li + li, .feats li:nth-child(2n) { padding: 24px 0; border-left: 0; }
  .wrist { margin-top: 72px; padding: 72px 22px 36px; }
  .desk-stage { margin-bottom: 40px; }
  .occasions { grid-template-columns: 1fr; }
  .occasions li { min-height: 170px; }
  .cell { padding: 26px 22px; }
  .balls { grid-template-columns: repeat(2, 1fr); }
  .points li { grid-template-columns: 1fr; gap: 4px; }
  .platforms { grid-template-columns: 1fr; margin-top: 48px; }
  .plat-qr:not([hidden]) { display: none; }
  .plat-qr:not([hidden]) + .plat-btn { display: inline-flex; }
  /* 在手机上看：手机的两张排在前面 */
  .plat:nth-child(4) { order: -2; } .plat:nth-child(3) { order: -1; }
  .final { padding-block: 130px; }
  .footer-inner { grid-template-columns: 1fr; justify-items: start; padding-block: 28px; }
  .footer-inner > span { justify-self: start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  .dictate-text { background: none; color: var(--ink); }
}