:root{--ink:#1d1d1f;--muted:#65656d;--silver:#f5f5f7;--line:#dadadf;--accent:#a64d72;--tint:#f5edf1;--ease:cubic-bezier(.2,.8,.2,1)}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;color:var(--ink);background:white;font:400 17px/1.6 Outfit,'PingFang SC','Microsoft YaHei',sans-serif}h1,h2,h3,p,figure{margin:0}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}a,button,summary{-webkit-tap-highlight-color:transparent;touch-action:manipulation}a:focus-visible,button:focus-visible,summary:focus-visible,video:focus-visible{outline:3px solid var(--accent);outline-offset:5px}img{display:block;max-width:100%;height:auto}svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}.wrap{width:min(1120px,calc(100% - 64px));margin-inline:auto}.skip{position:fixed;top:8px;left:8px;z-index:30;background:var(--ink);color:white;padding:12px;transform:translateY(-150%)}.skip:focus{transform:none}header{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.95);border-bottom:1px solid #e9e9ed;backdrop-filter:blur(16px)}.nav{display:flex;align-items:center;justify-content:space-between;gap:30px;min-height:68px}.brand{display:inline-flex;align-items:center;gap:9px;font-size:1.4375rem;font-weight:500;letter-spacing:-.6px;min-height:44px}.brand img{width:32px;height:32px;object-fit:contain}nav{display:flex;gap:32px;margin-left:auto}nav a{font-size:0.875rem;display:flex;align-items:center;min-height:44px}nav a:hover,.footer-links a:hover{color:var(--accent)}.nav-actions{display:flex;align-items:center;gap:17px}#language{min-width:44px;min-height:44px;border:0;background:none;font-size:0.8125rem}.nav-download{display:flex;align-items:center;justify-content:center;background:var(--ink);color:white;min-height:44px;padding:9px 20px;border-radius:24px;font-size:0.8125rem;white-space:nowrap}.hero{text-align:center;padding-top:44px;padding-bottom:54px}.eyebrow{font-size:0.8125rem;font-weight:500;letter-spacing:1.3px;color:var(--accent)}h1{font-size:clamp(2.75rem,5.7vw,4.75rem);line-height:1.08;font-weight:500;letter-spacing:-.045em;margin-top:12px;text-wrap:balance}h1 span{color:var(--accent)}.hero-copy{font-size:1.25rem;color:var(--muted);line-height:1.5;margin:18px auto 23px;max-width:63ch}.primary{display:inline-flex;align-items:center;justify-content:center;gap:14px;border:0;border-radius:28px;min-height:50px;padding:12px 25px;background:var(--accent);color:#fff;font-size:1rem;transition:transform .2s var(--ease),opacity .2s var(--ease)}.primary:hover{opacity:.9}.primary:active{transform:scale(.98)}.product-stage{display:grid;grid-template-columns:minmax(0,1fr) 36px 238px 36px minmax(0,1fr);align-items:center;gap:22px;max-width:930px;margin:32px auto 0;padding:25px 52px 20px;border-radius:32px;background:var(--silver)}.stage-photo{width:100%;max-width:185px;justify-self:center}.stage-photo figcaption{display:flex;align-items:center;justify-content:center;gap:8px;font-size:0.8125rem;white-space:nowrap;margin-bottom:12px}.number{font-size:0.6875rem;width:21px;height:21px;border:1px solid #a6a6b0;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0}.stage-photo img{width:100%;max-height:260px;object-fit:contain;border-radius:10px}.stage-photo p{font-size:0.75rem;color:var(--muted);margin-top:12px}.stage-arrow{color:#9c9ca6;font-size:1.75rem}.phone{background:#fff;border:1px solid #a9a9b1;box-shadow:0 0 0 4px #ececf0,0 18px 35px -20px #77778060;border-radius:28px;padding:8px;overflow:hidden}.phone img{width:100%;height:auto;border-radius:20px;object-fit:contain}.stage-phone{max-width:238px}.stage-phone .phone{width:214px;margin:auto}.stage-phone figcaption{font-size:0.8125rem;display:flex;justify-content:center;align-items:center;gap:8px;margin-top:14px}.stage-note{font-size:0.6875rem;line-height:1.5;color:var(--muted);margin:17px auto 0;max-width:90ch}.feature-section{background:var(--silver);padding:70px 0 74px}.section-heading{text-align:center;max-width:760px;margin:auto}h2{font-size:clamp(2.25rem,4.3vw,3.625rem);line-height:1.12;font-weight:500;letter-spacing:-.04em;text-wrap:balance}.section-heading h2{margin-top:14px}.section-heading>p:last-child{font-size:1.1875rem;line-height:1.5;color:var(--muted);margin-top:20px}.feature-tabs{display:flex;justify-content:center;gap:8px;margin:34px auto 28px}.feature-tabs button{border:0;min-height:48px;padding:12px 23px;background:#e9e9ed;color:var(--muted);border-radius:26px;font-size:0.9375rem;transition:background .2s,color .2s}.feature-tabs button[aria-selected=true]{background:var(--ink);color:#fff}.feature-panel{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;background:#fff;border-radius:28px;padding:48px 80px;min-height:570px}.feature-copy{max-width:380px}.feature-index{color:var(--accent);font-size:0.8125rem;font-weight:500;letter-spacing:2px;margin-bottom:18px}.feature-copy h3{font-size:2.375rem;line-height:1.16;letter-spacing:-1.2px;font-weight:500;text-wrap:balance}.feature-copy>p:not(.feature-index){color:var(--muted);font-size:1.125rem;line-height:1.65;margin-top:21px}.feature-copy ul{list-style:none;margin:23px 0;padding:0}.feature-copy li{display:flex;align-items:flex-start;gap:10px;font-size:0.9375rem;line-height:1.5;margin:12px 0;color:var(--ink)}.feature-copy li:before{content:'✓';color:var(--accent)}.text-action{display:inline-flex;align-items:center;gap:12px;min-height:44px;border:0;background:none;color:var(--accent);padding:0;font-size:0.9375rem}.text-action:hover{text-decoration:underline}.feature-visual{justify-self:center;width:245px}.feature-visual figcaption{font-size:0.75rem;line-height:1.5;color:var(--muted);text-align:center;margin-top:18px}.results-section{padding-block:74px}.result-layout{display:grid;grid-template-columns:1fr 1fr;gap:90px;align-items:center;max-width:900px;margin:48px auto 0}.result-explanation{max-width:370px}.reference-thumb{width:93px;height:auto;border-radius:10px}.caption{display:block;font-size:0.6875rem;letter-spacing:1.2px;color:var(--muted);margin:12px 0 24px}.result-explanation h3{font-size:2.0625rem;line-height:1.15;letter-spacing:-.8px;font-weight:500}.result-explanation>p{font-size:1.0625rem;color:var(--muted);line-height:1.6;margin-top:18px}.compare-tabs{display:inline-flex;gap:4px;background:var(--silver);border-radius:26px;padding:4px;margin-top:25px}.compare-tabs button{min-height:44px;font-size:0.875rem;background:none;border:0;border-radius:24px;padding:9px 22px;color:var(--muted)}.compare-tabs button[aria-selected=true]{background:white;color:var(--ink);box-shadow:0 2px 7px #1d1d1f12}.result-view{text-align:center;background:var(--silver);border-radius:24px;padding:20px}.result-view img{height:480px;width:100%;object-fit:contain;border-radius:10px;aspect-ratio:722/1283}.result-view figcaption{font-size:0.8125rem;margin-top:12px;color:var(--muted)}.fine-print{font-size:0.75rem;line-height:1.6;color:var(--muted)}.results-section>.fine-print{text-align:center;max-width:84ch;margin:25px auto 0}.guide-section{background:var(--ink);color:white;padding-block:66px}.guide-layout{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:100px;max-width:1000px}.guide-copy .eyebrow{color:#dca4bd}.guide-copy h2{font-size:3rem;margin-top:16px}.guide-copy>p:not(.eyebrow){color:#bcbcc4;font-size:1.125rem;margin:24px 0;max-width:36ch}.guide-copy .primary{background:white;color:var(--ink);font-size:0.9375rem}.duration{padding-left:10px;border-left:1px solid var(--line);font-size:0.8125rem;color:var(--muted)}.video-preview{background:#313135;border:1px solid #48484e;border-radius:24px;padding:28px 24px 20px;color:white;display:grid;justify-items:center;gap:22px;width:100%}.video-preview:hover{background:#37373c}.preview-screen{width:176px;border:5px solid #d8d8de;border-radius:22px;overflow:hidden;background:white}.preview-screen img{width:100%;border-radius:14px}.preview-control{display:flex;align-items:center;justify-content:center;gap:13px;font-size:0.9375rem}.preview-control svg{border:1px solid #9999a0;border-radius:50%;padding:7px;width:37px;height:37px}.faq-section{padding-block:74px;display:grid;grid-template-columns:.8fr 1fr;gap:80px}.faq-section h2{font-size:2.5rem}.faq details{border-bottom:1px solid var(--line)}.faq summary{list-style:none;cursor:pointer;min-height:64px;display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:1.0625rem;padding-block:16px;line-height:1.4}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:'+';color:var(--muted);font-size:1.4375rem}.faq details[open] summary:after{content:'−'}.faq p{font-size:1rem;color:var(--muted);padding-bottom:18px}.faq a{display:inline-flex;align-items:center;min-height:44px;color:var(--accent);font-size:0.9375rem;margin-bottom:12px}.closing{background:var(--silver);text-align:center;padding-block:60px}.closing img{width:80px;height:80px;border-radius:18px;margin:0 auto 20px;box-shadow:0 4px 14px #1d1d1f12}.closing h2{font-size:3.25rem}.closing p{font-size:1.125rem;color:var(--muted);margin:20px auto 25px}.closing .store-note{font-size:0.6875rem;max-width:76ch;margin-top:18px;margin-bottom:0}footer{padding-block:26px}.footer-top{display:flex;align-items:center;justify-content:space-between;gap:20px}.footer-links{display:flex;gap:26px}.footer-links a{min-height:44px;display:flex;align-items:center;color:var(--muted);font-size:0.8125rem}.footer-bottom{display:flex;justify-content:space-between;gap:30px;border-top:1px solid var(--line);padding-top:19px;margin-top:17px;font-size:0.6875rem;color:var(--muted)}.footer-bottom>div{max-width:80ch}.footer-bottom>div p+p{font-size:0.625rem;margin-top:5px}.footer-bottom>p{white-space:nowrap}dialog{border:0;background:white;border-radius:20px;padding:24px;width:min(860px,calc(100% - 32px));max-height:90dvh;color:var(--ink);overscroll-behavior:contain}dialog::backdrop{background:#1d1d1fc9}body.modal-open{overflow:hidden}.dialog-header{display:flex;align-items:center;justify-content:space-between;gap:15px;border-bottom:1px solid var(--line);padding-bottom:14px}.dialog-header h2{font-size:1.8125rem}.dialog-header button{min-width:72px;min-height:44px;border:0;background:var(--silver);border-radius:22px;font-size:0.875rem}.dialog-content{display:grid;grid-template-columns:.8fr 1fr;gap:35px;padding-top:24px;align-items:center}video{width:100%;max-height:65dvh;aspect-ratio:9/16;display:block;object-fit:contain;background:white}.dialog-content h3{font-size:1.6875rem;line-height:1.2;font-weight:500;letter-spacing:-.5px}.dialog-content ol{font-size:1rem;color:var(--muted);padding-left:20px;margin:22px 0}.dialog-content li{padding-bottom:12px}html[lang=zh-CN] h1{letter-spacing:-.025em}html[lang=zh-CN] .hero-copy{max-width:48ch}html[lang=zh-CN] h2{line-height:1.23}html[lang=zh-CN] .feature-copy h3{line-height:1.3}html[lang=zh-CN] .eyebrow{letter-spacing:1.5px}
@media(min-width:768px) and (max-width:1000px){.wrap{width:calc(100% - 48px)}.product-stage{gap:15px;padding-inline:24px;grid-template-columns:1fr 25px 210px 25px 1fr}.stage-phone .phone{width:195px}.stage-photo{max-width:150px}.stage-photo figcaption{font-size:0.6875rem}.stage-photo p{font-size:0.6875rem}.feature-panel{padding:36px;gap:38px}.feature-copy h3{font-size:2rem}.feature-visual{width:225px}.result-layout{gap:45px}.guide-layout{gap:45px}.guide-copy h2{font-size:2.625rem}.faq-section{gap:40px}.nav{gap:20px}nav{gap:20px}}
@media(max-width:767px){.wrap{width:calc(100% - 40px)}.nav{min-height:64px;gap:14px}.brand{font-size:1.3125rem;gap:6px}.brand img{width:28px;height:28px}nav{display:none}.nav-actions{gap:7px}.nav-download{padding:9px 14px;font-size:0.75rem}#language{font-size:0.75rem}.hero{padding-top:36px;padding-bottom:42px}.eyebrow{font-size:0.6875rem;letter-spacing:1px}h1{font-size:clamp(2.5rem,10.9vw,3.875rem);margin-top:13px;line-height:1.09;letter-spacing:-.04em}h1 span{display:block}.hero-copy{font-size:1.0625rem;line-height:1.55;max-width:35ch;margin:19px auto 22px}.hero-copy br{display:none}.primary{font-size:0.9375rem;min-height:48px;padding:12px 22px}.product-stage{grid-template-columns:1fr;padding:24px;margin-top:27px;border-radius:25px;gap:0;max-width:450px}.stage-photo,.stage-arrow{display:none}.stage-phone{justify-self:center;max-width:240px}.stage-phone .phone{width:210px}.stage-phone figcaption{font-size:0.75rem;margin-top:14px}.stage-note{font-size:0.6875rem;max-width:44ch;line-height:1.55;margin-top:14px}.feature-section{padding-block:46px}.section-heading h2{font-size:2.375rem;margin-top:12px}.section-heading>p:last-child{font-size:1.0625rem;margin-top:17px}.feature-tabs{gap:5px;margin:26px auto 22px;flex-wrap:wrap}.feature-tabs button{font-size:0.75rem;padding:11px 13px;min-height:46px}.feature-panel{grid-template-columns:1fr;gap:30px;padding:29px 25px;border-radius:24px;min-height:0}.feature-copy{max-width:none}.feature-index{font-size:0.75rem;margin-bottom:13px}.feature-copy h3{font-size:1.9375rem;letter-spacing:-.6px}.feature-copy>p:not(.feature-index){font-size:1.0625rem;margin-top:18px}.feature-copy li{font-size:0.875rem}.feature-copy ul{margin-block:19px}.text-action{font-size:0.875rem}.feature-visual{width:225px;max-width:100%}.feature-visual figcaption{font-size:0.75rem}.results-section{padding-block:46px}.result-layout{grid-template-columns:1fr;gap:30px;margin-top:32px}.result-explanation{max-width:none}.reference-thumb{width:82px}.caption{font-size:0.625rem;margin:10px 0 19px}.result-explanation h3{font-size:1.875rem;line-height:1.2}.result-explanation>p{font-size:1rem}.compare-tabs{margin-top:20px}.compare-tabs button{font-size:0.875rem;padding-inline:22px}.result-view{padding:16px;max-width:450px;width:100%;justify-self:center}.result-view img{height:auto;max-height:490px}.results-section>.fine-print{text-align:left;font-size:0.6875rem;margin-top:20px}.guide-section{padding-block:45px}.guide-layout{grid-template-columns:1fr;gap:30px}.guide-copy h2{font-size:2.375rem;margin-top:13px}.guide-copy>p:not(.eyebrow){font-size:1.0625rem;max-width:42ch;margin-block:20px}.video-preview{max-width:450px;justify-self:center;padding-top:24px}.preview-screen{width:162px}.preview-control{font-size:0.875rem}.faq-section{padding-block:46px;grid-template-columns:1fr;gap:25px}.faq-section h2{font-size:2.125rem}.faq summary{font-size:1rem;min-height:63px}.faq p{font-size:0.9375rem}.closing{padding-block:46px}.closing img{width:68px;height:68px;border-radius:15px}.closing h2{font-size:2.375rem}.closing p{font-size:1.0625rem;max-width:32ch;margin:19px auto 22px}.closing .store-note{font-size:0.6875rem;max-width:43ch}.footer-top,.footer-bottom{flex-direction:column;align-items:flex-start;gap:12px}.footer-links{gap:22px;flex-wrap:wrap}.footer-links a{font-size:0.75rem}.footer-bottom{font-size:0.6875rem;margin-top:8px;padding-top:18px}.footer-bottom>div p+p{font-size:0.625rem}.dialog-header h2{font-size:1.625rem}dialog{padding:20px;max-height:90dvh}.dialog-content{grid-template-columns:1fr;gap:25px}video{max-height:53dvh}.dialog-content h3{font-size:1.625rem}.dialog-content ol{font-size:0.9375rem}html[lang=zh-CN] h1{font-size:2.6875rem}html[lang=zh-CN] h2{font-size:2.1875rem}html[lang=zh-CN] .feature-copy h3{font-size:1.75rem}}
@media(max-width:360px){.wrap{width:calc(100% - 32px)}.brand{font-size:1.1875rem}.brand img{width:25px;height:25px}.nav-download{font-size:0.6875rem;padding-inline:11px}.feature-tabs{gap:4px}.feature-tabs button{font-size:0.6875rem;padding-inline:10px}.feature-panel{padding:25px 20px}html[lang=zh-CN] h1{font-size:2.375rem}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.primary:active{transform:none}}