@charset "UTF-8";
:root{--char:#20252b;--char2:#14181d;--orange:#f28c3a;--cream:#f3eee6;--paper:#f6f5f2;--ink:#20242a;--muted:#6d747a;--line:#dadde0;--shell:min(1180px,calc(100% - 40px))}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,"Microsoft YaHei","PingFang SC",sans-serif;background:var(--paper);color:var(--ink);-webkit-font-smoothing:antialiased}img{display:block;max-width:100%}a{text-decoration:none;color:inherit}.shell{width:var(--shell);margin:auto}
.site-header{background:#171b20;color:#fff;border-bottom:1px solid #2c3238;position:sticky;top:0;z-index:30}.header-inner{height:70px;display:grid;grid-template-columns:190px 1fr auto;gap:24px;align-items:center}.brand img{max-height:37px;width:auto}.header-inner nav{display:flex;justify-content:center;gap:24px;font-size:12px;color:#8e969d}.header-download{background:var(--orange);color:#20160d;padding:11px 17px;font-size:12px;font-weight:900}
.hero{padding:64px 0;background:linear-gradient(145deg,#1b2025,#2b3239);color:#fff}.hero-grid{display:grid;grid-template-columns:.88fr 1.12fr;gap:68px;align-items:center;min-height:550px}.eyebrow,.heading span,.diagnose-grid>div>span,.issue-grid>div>span,.restart-grid>div>span,.faq-title span,.final-grid span{display:block;font-size:9px;letter-spacing:.16em;color:#f3a15f;font-weight:900;margin-bottom:13px}.hero h1{font-size:clamp(52px,6.2vw,84px);line-height:.94;letter-spacing:-.055em;margin:18px 0 22px}.hero .lead{font-size:17px;line-height:1.85;color:#d8dde1}.hero p{font-size:13px;line-height:1.8;color:#9ea7ae}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:25px}.primary{background:var(--orange);color:#20160d;padding:14px 18px;font-size:12px;font-weight:900}.secondary{border:1px solid #59626a;padding:13px 18px;font-size:12px;color:#d7dde2}.hero-visual{margin:0;background:#101317;min-height:460px;display:grid;place-items:center;position:relative;padding:28px}.hero-visual img{max-height:390px;width:auto;object-fit:contain}.hero-visual figcaption{position:absolute;left:15px;bottom:12px;color:#778088;font-size:10px}
.visuals{padding:68px 0 90px;background:#fff}.heading{max-width:850px;margin-bottom:32px}.heading h2,.diagnose-grid h2,.issue-grid h2,.devices h2,.restart-grid h2,.faq-title h2{font-size:clamp(34px,4vw,52px);line-height:1.08;letter-spacing:-.045em;margin:0}.heading p{font-size:13px;line-height:1.8;color:var(--muted)}.visual-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.visual-grid figure{margin:0;background:#f3f4f5;border:1px solid var(--line);min-height:410px;padding:17px;display:flex;flex-direction:column}.visual-grid img{height:310px;width:100%;object-fit:contain}.visual-grid figcaption{margin-top:auto;border-top:1px solid var(--line);padding-top:12px}.visual-grid b{display:block;font-size:13px;margin-bottom:4px}.visual-grid span{font-size:11px;line-height:1.55;color:var(--muted)}
.diagnose{padding:88px 0;background:#f1e5d8}.diagnose-grid{display:grid;grid-template-columns:350px 1fr;gap:80px}.diagnose-grid>div>p{font-size:13px;color:var(--muted)}.diagnose-list{border-top:1px solid #d5c6b7}.diagnose-list a{display:grid;grid-template-columns:45px 190px 1fr;gap:20px;padding:16px 0;border-bottom:1px solid #d5c6b7;font-size:12px}.diagnose-list b{color:#bf6825;font-size:9px}.diagnose-list span{color:#766b61}
.issue-section{padding:88px 0;background:#fff}.issue-section.alt{background:#f2f3f3}.issue-section.dark{background:#252b31;color:#fff}.issue-grid{display:grid;grid-template-columns:70px .9fr 1.1fr;gap:35px;align-items:center}.issue-grid.reverse{grid-template-columns:70px 1.1fr .9fr}.issue-no{align-self:start;font-size:40px;font-weight:900;color:#d5d8da}.issue-grid h2{margin-bottom:15px}.issue-grid p{font-size:13px;line-height:1.85;color:var(--muted)}.dark .issue-grid p{color:#a8b0b7}.issue-grid ul,.issue-grid ol{padding-left:18px;font-size:12px;line-height:1.8;color:#646c72}.dark .issue-grid ol{color:#c3c9ce}.issue-grid figure{margin:0;background:#eceeef;min-height:390px;padding:22px;display:grid;place-items:center;position:relative}.dark figure{background:#161a1e}.issue-grid figure img{max-height:330px;width:auto;object-fit:contain}.issue-grid figcaption{position:absolute;left:13px;bottom:10px;color:#7b8389;font-size:9px}.check-box{background:#fff;border-left:4px solid var(--orange);padding:24px;display:grid;gap:10px}.check-box b{font-size:14px}.check-box span{font-size:12px;color:var(--muted)}
.devices{padding:88px 0;background:#1b2025;color:#fff}.device-columns{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.device-columns article{min-height:300px;background:#252b31;border:1px solid #363e45;padding:22px}.device-columns span{font-size:9px;letter-spacing:.14em;color:#f3a15f}.device-columns h3{font-size:22px;margin:55px 0 9px}.device-columns p{font-size:12px;line-height:1.75;color:#aeb6bd}.device-columns b{display:block;margin-top:26px;font-size:11px;color:#d8dde1}
.restart{padding:84px 0;background:var(--orange)}.restart-grid{display:grid;grid-template-columns:320px 1fr auto;gap:55px;align-items:center}.restart-grid>div>span{color:#69380f}.restart-list{border-top:1px solid rgba(32,37,43,.3)}.restart-list>div{display:grid;grid-template-columns:170px 1fr;gap:20px;padding:13px 0;border-bottom:1px solid rgba(32,37,43,.3);font-size:12px}.restart-list span{color:#64411f}.restart-grid>a{background:#1b2025;color:#fff;padding:14px 18px;font-size:12px;font-weight:900}
.faq-section{padding:92px 0;background:#fff}.faq-grid{display:grid;grid-template-columns:340px 1fr;gap:85px}.faq-list{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line)}summary{list-style:none;cursor:pointer;padding:22px 46px 22px 0;font-weight:900;position:relative}summary::-webkit-details-marker{display:none}summary::after{content:"+";position:absolute;right:4px;top:16px;color:var(--orange);font-size:24px}details[open] summary::after{content:"−"}details p{margin:0 0 22px;font-size:13px;line-height:1.8;color:var(--muted)}
.final{background:#20252b;color:#fff}.final-grid{min-height:176px;display:grid;grid-template-columns:1fr auto;gap:55px;align-items:center}.final-grid h2{font-size:31px;margin:7px 0 8px;letter-spacing:-.035em}.final-grid p{margin:0;color:#aeb5ba;font-size:12px}.final-grid a{background:var(--orange);color:#24170e;padding:14px 18px;font-size:12px;font-weight:900}
.footer{background:#101317;color:#687078;padding:32px 0 86px}.footer-grid{display:grid;grid-template-columns:180px 1fr auto;gap:28px;align-items:center}.footer img{max-height:34px;width:auto}.footer p{font-size:11px}.footer nav{display:flex;gap:17px;font-size:11px}.mobile-bar{display:none}
@media(max-width:980px){.hero-grid,.diagnose-grid,.issue-grid,.issue-grid.reverse,.restart-grid,.faq-grid{grid-template-columns:1fr}.issue-no{font-size:28px}.device-columns{grid-template-columns:1fr 1fr}}
@media(max-width:760px){:root{--shell:min(100% - 28px,1180px)}body{padding-bottom:64px}.header-inner nav,.header-download{display:none}.header-inner{grid-template-columns:1fr;height:62px}.hero{padding:46px 0}.hero h1{font-size:46px}.hero .lead{font-size:15px}.hero-visual{min-height:360px}.hero-visual img{max-height:300px}.visuals,.diagnose,.issue-section,.devices,.restart,.faq-section{padding:66px 0}.visual-grid{display:flex;overflow:auto}.visual-grid figure{min-width:82%;min-height:380px}.visual-grid img{height:285px}.diagnose-list a{grid-template-columns:35px 1fr}.diagnose-list span{grid-column:2}.issue-grid figure{min-height:350px}.device-columns{grid-template-columns:1fr}.restart-grid>a{justify-self:start}.final-grid{grid-template-columns:1fr;gap:18px;padding:30px 0}.final-grid a{justify-self:start}.footer-grid{grid-template-columns:1fr}.footer nav{flex-wrap:wrap}.mobile-bar{position:fixed;z-index:100;left:0;right:0;bottom:0;height:60px;background:rgba(16,19,23,.97);color:#fff;display:flex;justify-content:space-between;align-items:center;padding:8px 14px calc(8px + env(safe-area-inset-bottom))}.mobile-bar span{display:flex;flex-direction:column}.mobile-bar b{font-size:12px}.mobile-bar small{font-size:9px;color:#737d85;margin-top:3px}.mobile-bar a{background:var(--orange);color:#22160d;padding:9px 16px;font-size:12px;font-weight:900}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}