.wrap { width: 100%; max-width: 1320px; margin: 0 auto; padding: 0 clamp(20px, 4vw, 48px); }
.display { font: 780 clamp(48px, 7.4vw, 108px)/0.92 var(--display); letter-spacing: -0.022em; margin: 0; text-wrap: balance; }
.h2 { font: 780 clamp(36px, 4.6vw, 64px)/0.98 var(--display); letter-spacing: -0.02em; margin: 0; text-wrap: balance; }
.eyebrow { margin: 0 0 16px; font: 700 13px/1 var(--body); letter-spacing: .12em; text-transform: uppercase; color: var(--green); }
.sec-head { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 24px 48px; align-items: end; margin-bottom: 44px; }
.sec-sub { margin: 0; font-size: 18px; color: var(--muted); max-width: 32em; text-wrap: pretty; }
section { position: relative; }

/* nav */
.nav { position: sticky; top: 0; z-index: 30; background: rgba(18, 18, 18, .86); backdrop-filter: blur(14px) saturate(1.4); -webkit-backdrop-filter: blur(14px) saturate(1.4); transition: box-shadow .2s; }
.nav.scrolled { box-shadow: 0 1px 0 var(--line); }
.nav-in { display: flex; align-items: center; gap: 14px; height: 72px; }
.nav-brand { margin-right: 32px; }
.nav-links { display: flex; gap: 2px; margin-right: auto; }
.nav-links a { padding: 8px 14px; border-radius: 999px; font: 600 15px var(--body); color: var(--muted); transition: color .15s; }
.nav-links a:hover { color: var(--text); }
.nav-login { box-shadow: none; color: var(--muted); }
.nav-login:hover { box-shadow: none; color: var(--text); }

/* hero */
.hero { padding: clamp(32px, 6vw, 72px) 0 clamp(56px, 7vw, 100px); overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: 40px; align-items: center; }
.hero-new { display: inline-flex; align-items: center; gap: 10px; margin-bottom: 30px; padding: 6px 14px 6px 6px; border-radius: 999px; background: var(--s1); box-shadow: inset 0 0 0 1px var(--line); font: 600 14px var(--body); color: var(--muted); transition: color .15s; }
.hero-new:hover { color: var(--text); }
.hero-new span { padding: 4px 9px; border-radius: 999px; background: var(--green); color: var(--on-green); font-size: 12px; font-weight: 800; letter-spacing: .02em; }
.hl { position: relative; white-space: nowrap; color: var(--green); }
.hero-zh { margin: 22px 0 0; font: 700 30px/1.2 var(--zh); color: #e9e9e9; letter-spacing: .04em; }
.hero-lede { margin: 22px 0 32px; font-size: 19px; line-height: 1.55; color: var(--muted); max-width: 34em; text-wrap: pretty; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-note { margin: 22px 0 0; font: 600 13.5px var(--body); color: var(--faint); }
.hero-visual { position: relative; height: 640px; }
.fan { position: absolute; inset: 0; }
.fan > span { position: absolute; width: 230px; border-radius: 6px; overflow: hidden; box-shadow: 0 30px 60px -20px rgba(0, 0, 0, .8); }
.fan-0 { left: 0; top: 20%; transform: rotate(-10deg); }
.fan-1 { left: 34%; top: -2%; transform: rotate(-2deg); opacity: .9; }
.fan-2 { right: -2%; top: 30%; transform: rotate(9deg); }
.phone-hero { position: absolute; left: 50%; top: 0; transform: translateX(-40%); }

/* phone frame */
.phone { position: relative; width: 300px; height: 630px; padding: 10px; border-radius: 52px; background: #050505; box-shadow: inset 0 0 0 1.5px #3a3a3a, inset 0 0 0 4px #111, 0 40px 90px -30px rgba(0, 0, 0, .9), 0 0 0 1px #000; flex: none; }
.ph-screen { position: relative; height: 100%; border-radius: 42px; overflow: hidden; background: var(--bg); padding: 0 16px; font-size: 12px; }
.ph-status { display: flex; justify-content: space-between; align-items: center; height: 44px; padding: 0 12px; font: 700 13px var(--body); }
.ph-island { width: 86px; height: 26px; border-radius: 20px; background: #000; }
.ph-icons { display: flex; gap: 3px; }
.ph-icons i { width: 5px; height: 9px; border-radius: 1px; background: #fff; }
.ph-icons i:nth-child(2) { height: 7px; margin-top: 2px; } .ph-icons i:nth-child(1) { height: 5px; margin-top: 4px; }
.ph-now { background: var(--tint); }
.ph-now::after { content: ""; position: absolute; inset: 52% 0 0; background: rgba(0, 0, 0, .28); pointer-events: none; z-index: 0; }
.ph-now > * { position: relative; z-index: 1; }
.ph-now-head { display: grid; grid-template-columns: 24px 1fr 24px; align-items: center; margin: 2px 0 12px; text-align: center; }
.ph-now-head svg { width: 20px; height: 20px; }
.ph-from { font: 600 9.5px/1.3 var(--body); letter-spacing: .06em; text-transform: uppercase; color: rgba(255, 255, 255, .75); }
.ph-from b { display: block; font-size: 12px; letter-spacing: 0; text-transform: none; color: #fff; }
.ph-dots { font-weight: 800; }
.ph-art { width: 128px; margin: 0 auto 12px; border-radius: 5px; overflow: hidden; box-shadow: 0 16px 30px -10px rgba(0, 0, 0, .6); }
.ph-title { display: flex; flex-direction: column; margin-bottom: 8px; }
.ph-title b { font: 800 18px/1.1 var(--display); letter-spacing: -0.02em; }
.ph-title span { color: rgba(255, 255, 255, .7); font-weight: 600; }
.ph-lyrics { height: 210px; overflow: hidden; -webkit-mask-image: linear-gradient(#000 70%, transparent); mask-image: linear-gradient(#000 70%, transparent); }
.ph-lyrics p { margin: 0 0 9px; padding-left: 8px; border-left: 3px solid transparent; opacity: .42; transition: opacity .3s; }
.ph-lyrics p.on { opacity: 1; border-left-color: var(--green); }
.ph-lyrics p.past { opacity: .6; }
.ph-lyrics b { display: block; font: 700 16px/1.3 var(--zh); }
.ph-lyrics span { font-weight: 500; color: rgba(255, 255, 255, .78); }
.ph-bar { height: 4px; margin: 10px 0 12px; border-radius: 4px; background: rgba(255, 255, 255, .25); overflow: hidden; }
.ph-bar span { display: block; height: 100%; background: #fff; border-radius: 4px; }
.ph-controls { display: flex; align-items: center; justify-content: space-between; }
.ph-controls svg { width: 24px; height: 24px; }
.ph-play { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 50%; background: #fff; color: #111; }
.ph-chip { display: grid; place-items: center; min-width: 34px; height: 26px; padding: 0 6px; border-radius: 999px; background: rgba(255, 255, 255, .14); font: 700 10.5px var(--body); }
.ph-chip svg { width: 15px; height: 15px; }
.ph-chip.on { background: var(--green); color: var(--on-green); }
.ph-home { padding-top: 0; }
.ph-greet { margin: 6px 0 2px; font: 800 21px/1.05 var(--display); letter-spacing: -0.012em; }
.ph-streak { margin: 0 0 12px; color: var(--muted); font-weight: 600; font-size: 11px; }
.ph-streak b { color: var(--green); }
.ph-tiles { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.ph-tiles span { display: flex; align-items: center; gap: 7px; height: 40px; border-radius: 5px; overflow: hidden; background: var(--s3); font-size: 11px; }
.ph-tiles img { width: 40px; height: 40px; }
.ph-h { margin: 16px 0 8px; font: 800 15px var(--display); letter-spacing: -0.02em; }
.ph-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.ph-row small { display: block; margin-top: 5px; color: var(--muted); font-size: 10px; line-height: 1.2; }
.ph-row .mix-cover { font-size: 8px; }
.ph-sleeves img { border-radius: 4px; }
.ph-mini { position: absolute; left: 8px; right: 8px; bottom: 74px; display: flex; align-items: center; gap: 9px; padding: 6px; border-radius: 8px; background: var(--tint); }
.ph-mini img { width: 36px; height: 36px; border-radius: 4px; }
.ph-mini span { flex: 1; display: flex; flex-direction: column; font-size: 11px; line-height: 1.25; }
.ph-mini small { color: rgba(255, 255, 255, .75); font-size: 11px; }
.ph-mini i svg { width: 22px; height: 22px; }
.ph-tabs { position: absolute; left: 0; right: 0; bottom: 0; display: flex; justify-content: space-around; padding: 14px 0 28px; background: linear-gradient(transparent, #000 40%); color: var(--muted); }
.ph-tabs svg { width: 22px; height: 22px; }
.ph-tabs .on { color: #fff; }

/* shelf */
.strip { padding: 40px 0 clamp(64px, 8vw, 110px); }
.shelf { display: flex; gap: 22px; margin: 0; padding: 6px max(clamp(20px, 4vw, 48px), calc((100vw - 1320px) / 2 + 48px)) 20px; list-style: none; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; scroll-padding-inline: max(clamp(20px, 4vw, 48px), calc((100vw - 1320px) / 2 + 48px)); }
.shelf::-webkit-scrollbar { display: none; }
.shelf li { flex: none; width: 196px; scroll-snap-align: start; }
.sleeve { display: block; }
.sleeve picture { display: block; border-radius: 6px; overflow: hidden; box-shadow: 0 20px 40px -24px var(--tint), 0 8px 18px -10px rgba(0, 0, 0, .8); transition: transform .35s cubic-bezier(.2, .8, .2, 1); }
.sleeve:hover picture { transform: translateY(-6px) rotate(-1deg); }
.sleeve-t { display: block; margin-top: 14px; font: 700 16px/1.25 var(--ui); }
.sleeve-t :lang(zh-Hans) { color: var(--muted); font-weight: 500; font-size: 14px; }
.sleeve-m { display: block; margin-top: 2px; font-size: 13.5px; color: var(--faint); }

/* demo */
.try { padding: clamp(64px, 8vw, 110px) 0; background: var(--bg-deep); }
.demo { position: relative; display: grid; grid-template-columns: 360px minmax(0, 1fr); gap: 0; min-height: 620px; border-radius: 16px; overflow: hidden; background: var(--s1); box-shadow: inset 0 0 0 1px #242424; }
.demo-side { display: flex; flex-direction: column; padding: 28px; background: var(--s2); }
.seg { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; padding: 4px; border-radius: 999px; background: var(--bg); margin-bottom: 26px; }
.seg button { height: 34px; border-radius: 999px; font: 700 13px var(--body); color: var(--muted); }
.seg button[aria-pressed="true"] { background: var(--s3); color: var(--text); }
.demo-sleeve { width: 172px; border-radius: 6px; overflow: hidden; box-shadow: 0 24px 40px -18px rgba(0, 0, 0, .9); margin-bottom: 20px; }
.demo-track { margin: 0; font: 800 24px/1.1 var(--display); letter-spacing: -0.025em; }
.demo-track :lang(zh-Hans) { display: block; margin-top: 4px; font: 500 16px var(--zh); color: var(--muted); letter-spacing: .02em; }
.demo-album { margin: 6px 0 22px; color: var(--muted); font-size: 14px; }
.demo-progress { height: 4px; border-radius: 4px; background: #3e3e3e; overflow: hidden; }
.demo-progress span { display: block; height: 100%; width: 0; background: var(--green); }
.demo-times { display: flex; justify-content: space-between; margin-top: 6px; font: 600 12px var(--body); color: var(--faint); font-variant-numeric: tabular-nums; }
.demo-controls { display: flex; align-items: center; justify-content: center; gap: 22px; margin: 16px 0 22px; }
.ctl { display: grid; place-items: center; width: 40px; height: 40px; color: var(--muted); transition: color .15s, transform .12s; }
.ctl:hover { color: var(--text); }
.ctl svg { width: 22px; height: 22px; }
.ctl-play { width: 60px; height: 60px; border-radius: 50%; background: var(--green); color: var(--on-green); }
.ctl-play:hover { color: var(--on-green); transform: scale(1.06); }
.ctl-play svg { width: 26px; height: 26px; }
.ctl-play svg + svg, .playing .ctl-play svg:first-child { display: none; }
.playing .ctl-play svg + svg { display: block; }
.demo-tools { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: auto; }
.tool { display: flex; align-items: center; gap: 8px; height: 40px; padding: 0 12px; border-radius: 8px; background: var(--s3); font: 600 13px var(--body); color: var(--text); transition: background .15s; }
.tool svg { width: 17px; height: 17px; }
.tool:hover { background: #333; }
.tool[aria-pressed="true"] { background: var(--green); color: var(--on-green); }
.tool[hidden] { display: none; }
.py-glyph { font: 800 12px var(--body); letter-spacing: -0.02em; }
.lyrics-wrap { background: var(--tint, #6b2318); transition: background .4s; }
.demo .lyrics { height: 620px; padding: 0 40px; }
.demo .toast { position: absolute; bottom: 24px; }

/* how */
.how { padding: clamp(64px, 8vw, 120px) 0; }
.how-grid { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.how-card { padding: 22px 22px 26px; border-radius: 14px; background: var(--s1); transition: background .2s; }
.how-card:hover { background: var(--s2); }
.how-card h3 { margin: 22px 0 8px; font: 780 24px/1.05 var(--display); letter-spacing: -0.012em; }
.how-card p { margin: 0; color: var(--muted); font-size: 16px; }
.how-art { height: 200px; border-radius: 10px; background: var(--bg); overflow: hidden; }
.how-art.mixes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; align-items: center; padding: 0 16px; }
.how-art.mixes .mix-cover { font-size: 9px; box-shadow: 0 14px 24px -12px #000; }
.how-art.mixes .mix-cover:nth-child(2) { transform: translateY(-10px); }
.how-art.speed { display: flex; flex-wrap: wrap; align-content: center; justify-content: center; gap: 12px; padding: 20px; }
.sp { display: grid; place-items: center; width: 92px; height: 92px; border-radius: 50%; background: var(--s3); font: 800 26px var(--display); letter-spacing: -0.012em; color: var(--muted); }
.sp.on { background: var(--green); color: var(--on-green); }
.loop { display: inline-flex; align-items: center; gap: 8px; height: 38px; padding: 0 16px; border-radius: 999px; background: var(--s3); font: 700 14px var(--body); }
.loop svg { width: 18px; height: 18px; color: var(--green); }
.how-art.phrases { display: flex; flex-direction: column; justify-content: center; gap: 10px; padding: 18px; }
.how-art.phrases p { margin: 0; padding: 12px 14px; border-radius: 8px; background: var(--s2); border-left: 3px solid var(--green); }
.how-art.phrases b { display: block; font-size: 16px; }
.how-art.phrases b:lang(zh-Hans) { font-size: 17px; }
.how-art.phrases span { color: var(--muted); font-size: 13.5px; }

/* apps */
.apps { padding: clamp(64px, 8vw, 120px) 0; background: var(--bg-deep); overflow: hidden; }
.devices { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 28px; align-items: center; }
.browser { border-radius: 12px; overflow: hidden; background: #000; box-shadow: 0 0 0 1px #2a2a2a, 0 40px 80px -30px #000; }
.browser-bar { display: flex; align-items: center; gap: 7px; height: 36px; padding: 0 14px; background: #1c1c1c; }
.browser-bar i { width: 11px; height: 11px; border-radius: 50%; background: #3a3a3a; }
.browser-bar span { margin: 0 auto; padding: 4px 18px; border-radius: 6px; background: #111; font: 500 12px var(--body); color: var(--muted); }
.browser-body { aspect-ratio: 16 / 9.4; }
.phones { display: flex; gap: 20px; }
.phones .phone { width: 270px; height: 568px; border-radius: 46px; }
.phones .ph-screen { border-radius: 37px; }
.phones .phone:first-child { margin-bottom: 40px; }
.store-row { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 40px; }
.store { display: inline-flex; align-items: center; gap: 10px; height: 52px; padding: 0 18px; border-radius: 10px; box-shadow: inset 0 0 0 1px #3a3a3a; font: 600 14px var(--body); color: var(--muted); }
.store b { color: var(--text); font: 800 18px var(--display); letter-spacing: -0.02em; }
.notify { display: flex; flex-wrap: wrap; gap: 8px; margin-left: auto; }
.notify input { width: 300px; height: 44px; padding: 0 18px; border-radius: 999px; border: 0; background: var(--s3); }
.notify input::placeholder { color: var(--faint); }
.notify-msg { flex-basis: 100%; margin: 4px 0 0 6px; min-height: 1.3em; font-size: 14px; color: var(--muted); }
.notify-msg.ok { color: var(--green); }
.notify-msg.err { color: #ff8a7a; }
.notify.done input, .notify.done button { display: none; }

/* mini web player (inside the browser frame) */
.mp { display: grid; grid-template-columns: 22% 1fr; grid-template-rows: 1fr 12%; gap: 6px; height: 100%; padding: 6px; background: #000; font-size: 11px; }
.mp-side { display: flex; flex-direction: column; gap: 8px; padding: 12px; border-radius: 8px; background: var(--bg); }
.mp-logo svg { width: 22px; height: 22px; }
.mp-nav { height: 8px; width: 60%; border-radius: 4px; background: #3a3a3a; }
.mp-nav.on { background: #fff; width: 40%; }
.mp-lib { display: grid; gap: 7px; margin-top: 8px; }
.mp-lib img { width: 32px; height: 32px; border-radius: 4px; }
.mp-main { overflow: hidden; padding: 14px 16px; border-radius: 8px; background: var(--bg); }
.mp-greet { margin: 0 0 10px; font: 800 20px var(--display); letter-spacing: -0.012em; }
.mp-tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.mp-tiles span { display: flex; align-items: center; gap: 7px; height: 34px; border-radius: 4px; overflow: hidden; background: var(--s3); font-size: 11px; }
.mp-tiles img { width: 34px; height: 34px; }
.mp-h { margin: 14px 0 8px; font: 800 13px var(--display); }
.mp-row { display: grid; grid-template-columns: repeat(6, 1fr); gap: 10px; }
.mp-row .mix-cover { font-size: 6px; }
.mp-sleeves img { border-radius: 3px; }
.mp-bar { grid-column: 1 / -1; display: flex; align-items: center; gap: 10px; padding: 0 10px; border-radius: 8px; background: #000; }
.mp-bar img { width: 30px; height: 30px; border-radius: 3px; }
.mp-bar > span:nth-child(2) { display: flex; flex-direction: column; width: 22%; line-height: 1.25; }
.mp-bar small { color: var(--muted); }
.mp-ctl { display: flex; gap: 10px; align-items: center; }
.mp-ctl i { width: 8px; height: 8px; border-radius: 2px; background: var(--muted); }
.mp-ctl .p { width: 22px; height: 22px; border-radius: 50%; background: #fff; }
.mp-prog { flex: 1; max-width: 40%; height: 3px; margin-left: 20px; border-radius: 3px; background: #3a3a3a; }
.mp-prog i { display: block; width: 38%; height: 100%; border-radius: 3px; background: #fff; }

/* teacher */
.teacher { padding: clamp(64px, 8vw, 120px) 0; }
.teacher-grid { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: clamp(32px, 6vw, 88px); align-items: center; }
.teacher-photo { margin: 0; border-radius: 16px; overflow: hidden; aspect-ratio: 4 / 5; }
.teacher-photo img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 30%; }
.teacher .h2 { font-size: clamp(30px, 3.4vw, 46px); line-height: 1.02; }
.teacher-sig { margin: 24px 0 0; color: var(--muted); font-size: 15px; }
.teacher-sig b { color: var(--text); }
.teacher-body { margin: 18px 0 0; color: var(--muted); font-size: 17px; max-width: 36em; }
.stats { display: flex; gap: 40px; margin: 34px 0 0; padding: 0; list-style: none; }
.stats li { display: flex; flex-direction: column; color: var(--muted); font-weight: 600; font-size: 14px; }
.stats b { font: 780 56px/1 var(--display); letter-spacing: -0.02em; color: var(--text); }

/* pricing */
.pricing { padding: clamp(64px, 8vw, 120px) 0; background: var(--bg-deep); }
.price-grid { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.price { position: relative; display: flex; flex-direction: column; padding: 28px; border-radius: 16px; background: var(--s1); }
.price.best { background: var(--s2); box-shadow: inset 0 0 0 2px var(--green); }
.badge { position: absolute; right: 22px; top: 22px; padding: 5px 10px; border-radius: 999px; background: var(--green); color: var(--on-green); font: 800 12px var(--body); }
.price h3 { margin: 0 0 18px; font: 780 26px var(--display); letter-spacing: -0.012em; }
.amount { margin: 0; color: var(--muted); font-weight: 600; }
.amount b { font: 780 48px/1 var(--display); letter-spacing: -0.02em; color: var(--text); }
.price-note { margin: 6px 0 20px; color: var(--faint); font-size: 14px; }
.price ul { list-style: none; margin: 0 0 28px; padding: 0; flex: 1; }
.price li { display: flex; gap: 10px; padding: 8px 0; font-size: 15.5px; color: #dcdcdc; }
.price li svg { width: 18px; height: 18px; color: var(--green); flex: none; margin-top: 2px; }

/* final + footer */
.final { padding: clamp(80px, 10vw, 140px) 0; text-align: center; }
.final-in { display: flex; flex-direction: column; align-items: center; gap: 28px; }
.final-in svg { width: 72px; height: 72px; }
.final .h2 { max-width: 12em; }
.foot { border-top: 1px solid var(--line); }
.foot-in { display: flex; justify-content: space-between; gap: 32px; padding-top: 40px; padding-bottom: 28px; }
.foot-brand p { margin: 12px 0 0; color: var(--muted); font-size: 14.5px; }
.foot-brand p span { margin-left: 4px; }
.foot-nav { display: flex; flex-wrap: wrap; gap: 8px 28px; align-content: center; font-weight: 600; font-size: 14.5px; color: var(--muted); }
.foot-nav a:hover { color: var(--text); }
.foot-base { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px 24px; padding-top: 18px; padding-bottom: 28px; border-top: 1px solid #222; font-size: 13px; color: var(--faint); }
.foot-base p { margin: 0; }
.lost { min-height: 70vh; display: flex; flex-direction: column; justify-content: center; gap: 24px; align-items: flex-start; }
.lost svg { width: 96px; height: 96px; }

/* OG card */
.card-body { margin: 0; overflow: hidden; background: var(--bg); }
.og-card { position: relative; display: grid; grid-template-columns: 1fr 1fr; width: 1200px; height: 630px; padding: 72px; overflow: hidden; }
.og-title { margin: 56px 0 0; font: 780 76px/0.95 var(--display); letter-spacing: -0.022em; }
.og-zh { margin: 22px 0 0; font: 700 32px var(--zh); color: var(--muted); }
.og-sleeves { position: absolute; right: -40px; top: 40px; display: grid; grid-template-columns: repeat(2, 230px); gap: 22px; transform: rotate(-8deg); }
.og-sleeves img { border-radius: 8px; box-shadow: 0 30px 60px -20px #000; }
.og-sleeves picture:nth-child(even) { transform: translateY(70px); }

/* responsive */
@media (max-width: 1100px) {
  .nav-links { display: none; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { height: 600px; }
  .phone-hero { transform: translateX(-50%); }
  .devices { grid-template-columns: 1fr; }
  .phones { justify-content: center; }
}
@media (max-width: 760px) {
  .nav-in { height: 60px; }
  .nav-brand { margin-right: auto; }
  .nav-login { display: none; }
  .nav .btn { height: 38px; padding: 0 16px; font-size: 14px; }
  .hero-new { margin-bottom: 22px; font-size: 13px; }
  .hero-zh { font-size: 22px; }
  .hero-lede { font-size: 17px; }
  .hero-cta .btn { flex: 1 1 100%; }
  .hero-visual { height: 560px; margin: 0 -20px; }
  .fan > span { width: 150px; }
  .fan-0 { left: 0; top: 18%; } .fan-1 { left: 10%; top: 6%; } .fan-2 { right: -4%; top: 40%; }
  .phone-hero { transform: translateX(-50%) scale(.86); transform-origin: 50% 0; }
  .sec-head { grid-template-columns: 1fr; margin-bottom: 28px; }
  .sec-sub { font-size: 16px; }
  .shelf li { width: 150px; }
  .demo { grid-template-columns: 1fr; }
  .demo-side { padding: 20px; display: grid; grid-template-columns: 96px 1fr; gap: 0 16px; align-items: start; }
  .demo-side > .seg { grid-column: 1 / -1; }
  .demo-sleeve { width: 96px; grid-row: span 2; margin: 0; }
  .demo-track { font-size: 20px; }
  .demo-album { margin-bottom: 12px; }
  .demo-progress, .demo-times, .demo-controls, .demo-tools { grid-column: 1 / -1; }
  .demo-progress { margin-top: 18px; }
  .demo-controls { margin: 8px 0 14px; }
  .demo .lyrics { height: 460px; padding: 0 20px; }
  .ly-t, .ly-t:lang(zh-Hans) { font-size: 25px; }
  .ly-tr { font-size: 16px; }
  .how-grid, .price-grid { grid-template-columns: 1fr; }
  .browser { display: none; }
  .phones { gap: 12px; overflow-x: auto; justify-content: flex-start; margin: 0 -20px; padding: 0 20px 20px; scroll-snap-type: x mandatory; }
  .phones .phone { scroll-snap-align: center; }
  .phones .phone:first-child { margin-bottom: 0; }
  .store-row { flex-direction: column; align-items: stretch; }
  .notify { margin-left: 0; }
  .notify input { width: 100%; flex: 1 1 100%; }
  .notify .btn { width: 100%; }
  .teacher-grid { grid-template-columns: 1fr; }
  .teacher-photo { aspect-ratio: 1; }
  .stats { gap: 28px; }
  .stats b { font-size: 44px; }
  .foot-in { flex-direction: column; }
}