*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,"Microsoft YaHei","PingFang SC",sans-serif;color:#17191d;background:#f7f7f5;line-height:1.76}img{display:block;max-width:100%}a{text-decoration:none;color:inherit}.skip-link{position:absolute;left:-999px;top:8px;background:#fff;padding:10px;z-index:100}.skip-link:focus{left:8px}.site-header{position:sticky;top:0;z-index:50;background:rgba(250,250,248,.96);border-bottom:1px solid #e7e7e3;backdrop-filter:blur(12px)}.header-wrap{max-width:1180px;height:72px;margin:auto;padding:0 24px;display:flex;align-items:center;gap:28px}.brand{display:flex;align-items:center;gap:10px;margin-right:auto}.mark{width:36px;height:36px;border-radius:50%;background:#111318;color:#fff;display:grid;place-items:center;font-weight:900}.brand strong,.brand small{display:block}.brand small{font-size:11px;color:#7b7e83}.header-wrap nav{display:flex;gap:22px;font-size:14px}.top-cta,.primary{background:#111318;color:#fff;padding:11px 18px;border-radius:999px;font-weight:800}.menu,.mobile-nav{display:none}.hero{max-width:1180px;margin:0 auto;padding:80px 24px 34px;text-align:center;position:relative}.hero-inner{max-width:860px;margin:auto}.overline,.gallery-head p,.prepare-title>p,.timeline-intro>p,.compare-copy>p,.reinstall-section>div>p,.section-head>p,.faq-head>p,.final-section>p{font-size:12px;text-transform:uppercase;letter-spacing:.14em;font-weight:900;color:#676b74}.hero h1{font-size:clamp(46px,7vw,78px);line-height:1.02;letter-spacing:-.05em;margin:12px 0 18px}.lead{font-size:18px;color:#5e6168}.hero-actions{display:flex;justify-content:center;gap:12px;margin:30px 0 22px}.secondary,.outline{border:1px solid #cfd0cc;padding:11px 18px;border-radius:999px;font-weight:800;background:#fff}.device-note{display:flex;justify-content:center;gap:8px;flex-wrap:wrap}.device-note span{background:#ececea;border-radius:999px;padding:6px 12px;font-size:12px}.hero-image{width:250px;height:370px;margin:38px auto 0;background:#ececea;border-radius:36px;padding:12px;box-shadow:0 24px 60px rgba(22,23,25,.12)}.hero-image img{width:100%;height:100%;object-fit:contain;border-radius:26px}.gallery-section{max-width:1180px;margin:auto;padding:58px 24px}.gallery-head{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:end;margin-bottom:22px}.gallery-head h2,.prepare-title h2,.timeline-intro h2,.compare-copy h2,.reinstall-section h2,.section-head h2,.faq-head h2,.final-section h2{font-size:clamp(30px,4vw,48px);line-height:1.14;letter-spacing:-.03em;margin:5px 0 8px}.gallery-head>span{color:#6d7075}.gallery{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:14px}.gallery figure{margin:0;background:#fff;border:1px solid #e4e4df;border-radius:18px;overflow:hidden}.gallery img{width:100%;height:270px;object-fit:cover;background:#efefed}.gallery .g1 img{object-fit:contain}.gallery figcaption{padding:14px 16px;font-weight:800;font-size:13px}.text-cta{display:inline-block;margin-top:20px;font-weight:900;border-bottom:1px solid #111318}.prepare-section{background:#fff;padding:72px max(24px,calc((100vw - 1180px)/2))}.prepare-title{max-width:700px}.prepare-title>span{color:#6f7277}.prepare-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:30px}.prepare-grid article{padding:24px;border-top:2px solid #15171b;background:#f8f8f6}.num{font-weight:900;color:#999b9f}.prepare-grid h3{font-size:20px;margin:10px 0 7px}.prepare-grid p{color:#66696e;margin:0}.timeline-section{max-width:1180px;margin:auto;padding:82px 24px;display:grid;grid-template-columns:340px 1fr;gap:70px}.timeline-intro{position:sticky;top:110px;align-self:start}.timeline-intro>span{display:block;color:#6f7277;margin-bottom:16px}.mini-cta{font-weight:900;border-bottom:1px solid #111}.timeline article{position:relative;display:grid;grid-template-columns:45px 1fr;gap:18px;padding:0 0 42px}.timeline article:not(:last-child):after{content:"";position:absolute;left:17px;top:39px;bottom:5px;width:1px;background:#d6d6d2}.dot{width:35px;height:35px;border-radius:50%;background:#111318;color:#fff;display:grid;place-items:center;font-weight:900;z-index:1}.timeline h3{margin:2px 0 7px;font-size:23px}.timeline p{margin:0;color:#62656b}.timeline article a{font-weight:900;display:inline-block;margin-top:8px}.with-media{grid-template-columns:45px 1fr 190px!important}.with-media figure{margin:0;width:190px;height:150px;background:#eeeeeb;border-radius:16px;overflow:hidden}.with-media img{width:100%;height:100%;object-fit:contain}.compare-section{background:#16181d;color:#fff;padding:74px max(24px,calc((100vw - 1180px)/2))}.compare-copy{max-width:760px}.compare-copy p:last-child{color:#c6c7ca}.compare-table{margin:28px 0 24px;border:1px solid #33363d;border-radius:18px;overflow:hidden}.row{display:grid;grid-template-columns:1fr 1fr 1fr;border-bottom:1px solid #303239}.row:last-child{border-bottom:0}.row>*{padding:15px 18px}.row.header{background:#25282f;font-size:12px;text-transform:uppercase;color:#bfc1c6}.dark{background:#fff;color:#111318}.reinstall-section{max-width:1180px;margin:0 auto;padding:80px 24px;display:grid;grid-template-columns:.85fr 1.15fr;gap:70px;align-items:center}.new-phone-visual{min-height:500px;border-radius:28px;background:#ececea;padding:26px;display:flex;align-items:center;justify-content:center;gap:18px}.phone-outline{width:220px;height:390px;border:4px solid #15171b;border-radius:36px;background:#fafaf8;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:20px;position:relative}.notch{position:absolute;top:12px;width:76px;height:18px;background:#15171b;border-radius:999px}.phone-outline span{font-size:11px;letter-spacing:.15em;color:#8a8d92}.phone-outline strong{font-size:23px;margin:10px 0}.phone-outline small{color:#6d7075}.transfer-arrow{font-size:30px;font-weight:900}.recheck{background:#15171b;color:#fff;border-radius:999px;padding:12px 16px;font-weight:900}.reinstall-section p,.reinstall-section li{color:#64676c}.problem-section{background:#ecece9;padding:72px max(24px,calc((100vw - 1180px)/2))}.problem-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:24px}.problem-grid article{background:#f9f9f7;border-radius:15px;padding:20px}.problem-grid h3{font-size:18px;margin:0 0 8px}.problem-grid p{color:#66696d;font-size:14px;margin:0}.faq-section{max-width:980px;margin:0 auto;padding:80px 24px}.faq-head{text-align:center;margin-bottom:24px}.faq-list details{border-top:1px solid #d5d5d1;padding:18px 4px}.faq-list details:last-child{border-bottom:1px solid #d5d5d1}.faq-list summary{font-weight:900;cursor:pointer}.faq-list p{color:#62656a}.final-section{max-width:1120px;margin:0 auto 72px;padding:52px;background:#deded9;border-radius:28px;text-align:center}.final-section span{display:block;color:#62656a;max-width:760px;margin:0 auto 22px}.final{display:inline-block}footer{max-width:1180px;margin:auto;padding:0 24px 36px;display:flex;justify-content:space-between;color:#64676b}footer p{margin:3px 0 0;font-size:13px}.sticky-download{display:none}
@media(max-width:900px){.header-wrap nav,.top-cta{display:none}.menu{display:block;border:1px solid #d4d4d0;background:#fff;border-radius:999px;padding:8px 12px}.mobile-nav.open{display:flex;padding:8px 24px 15px;gap:16px;flex-wrap:wrap}.gallery-head{grid-template-columns:1fr}.gallery{grid-template-columns:1fr 1fr}.gallery .g1{grid-row:span 2}.prepare-grid{grid-template-columns:1fr}.timeline-section{grid-template-columns:1fr}.timeline-intro{position:static}.problem-grid{grid-template-columns:1fr 1fr}.reinstall-section{grid-template-columns:1fr}}
@media(max-width:600px){body{padding-bottom:70px}.header-wrap{height:64px;padding:0 16px}.brand small{display:none}.hero{padding:54px 16px 22px}.hero h1{font-size:43px}.lead{font-size:16px}.hero-actions{flex-direction:column}.hero-image{width:210px;height:320px}.gallery-section,.timeline-section,.reinstall-section,.faq-section{padding-left:16px;padding-right:16px}.gallery{grid-template-columns:1fr}.gallery .g1{grid-row:auto}.prepare-section,.compare-section,.problem-section{padding-left:16px;padding-right:16px}.with-media{grid-template-columns:45px 1fr!important}.with-media figure{grid-column:2;width:100%}.row{grid-template-columns:1fr}.row.header{display:none}.row>*{padding:10px 14px}.row strong{background:#292c32}.problem-grid{grid-template-columns:1fr}.new-phone-visual{min-height:360px}.phone-outline{width:170px;height:300px}.transfer-arrow{display:none}.recheck{font-size:12px}.final-section{margin:0 16px 28px;padding:34px 20px}footer{display:block;padding:0 16px 28px}footer>a{display:inline-block;margin-top:12px}.sticky-download{position:fixed;left:0;right:0;bottom:0;height:60px;background:#15171b;color:#fff;z-index:80;display:flex;align-items:center;justify-content:space-between;padding:8px 12px}.sticky-download strong,.sticky-download small{display:block}.sticky-download small{font-size:10px;color:#bbbcc0}.sticky-download a{background:#fff;color:#111318;padding:8px 13px;border-radius:999px;font-weight:900}}

/* WPT official brand icon */
.brand-logo{
    display:block;
    width:38px;
    height:38px;
    min-width:38px;
    object-fit:contain;
    flex:0 0 auto;
}

@media(max-width:600px){
    .brand-logo{
        width:34px;
        height:34px;
        min-width:34px;
    }
}