:root{--blue:#1684ff;--blue2:#55adff;--ice:#eaf6ff;--white:#fff;--ink:#152332;--muted:#667686;--line:#d4e2ee;--deep:#152d43;--deep2:#1e405e}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,"Microsoft YaHei","PingFang SC",sans-serif;background:#f8fbfe;color:var(--ink);font-size:16px;line-height:1.8}img{display:block;max-width:100%;height:auto}a{color:inherit}.shell{width:min(1200px,calc(100% - 40px));margin:auto}.skip{position:fixed;top:-60px;left:12px;z-index:999;background:#fff;padding:10px}.skip:focus{top:12px}
.win-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(15px)}.win-head{min-height:70px;display:grid;grid-template-columns:170px 180px 1fr auto;gap:22px;align-items:center}.logo{display:inline-flex;padding:6px 9px;border:1px solid var(--line);border-radius:8px}.logo img{height:33px;width:auto;max-width:155px;object-fit:contain}.win-title span,.win-title b{display:block}.win-title span{font-size:9px;color:#71889a;letter-spacing:.14em}.win-title b{font-size:13px}.win-head nav{display:flex;justify-content:center;gap:24px}.win-head nav a{text-decoration:none;font-size:13px;color:#536574}.head-cta{padding:9px 17px;background:var(--blue);color:#fff;text-decoration:none;border-radius:6px;font-weight:900}
.hero{background:linear-gradient(180deg,#f1f9ff,#dfefff)}.hero-inner{padding:75px 0 80px}.hero-top{display:grid;grid-template-columns:1fr 320px;gap:55px;align-items:end;margin-bottom:40px}.kicker{margin:0 0 10px;color:#357abd;font-size:10px;font-weight:900;letter-spacing:.15em}.kicker.blue{color:#397db7}.kicker.light{color:#a9d5ff}.hero h1{margin:0;font-size:clamp(50px,5.7vw,78px);line-height:.98;letter-spacing:-.055em}.hero h1 span{color:var(--blue)}.lead{max-width:730px;margin:25px 0 0;color:#5d7181;font-size:17px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}.primary,.secondary{display:inline-flex;min-height:50px;align-items:center;justify-content:center;padding:11px 21px;border-radius:7px;text-decoration:none;font-weight:900}.primary{background:var(--blue);color:#fff}.secondary{border:1px solid #afc9dd;background:#fff;color:#244864}
.download-tile{padding:24px;background:#fff;border:1px solid #b9d4e8;box-shadow:0 22px 55px rgba(35,95,142,.12)}.tile-no{display:block;color:#c5dced;font-size:54px;line-height:1;font-weight:900}.download-tile small{display:block;margin-top:12px;color:#6394b8;font-size:9px;letter-spacing:.14em}.download-tile strong{display:block;font-size:23px}.download-tile p{color:#6f7d88;font-size:13px}.download-tile a{display:flex;justify-content:space-between;padding:12px 14px;background:var(--deep);color:#fff;text-decoration:none;font-weight:900}
.desktop-card{border:1px solid #b9d3e6;background:#fff;box-shadow:0 30px 70px rgba(38,94,135,.14)}.desktop-top{min-height:46px;display:flex;justify-content:space-between;align-items:center;padding:0 16px;border-bottom:1px solid var(--line);color:#718797;font-size:9px;letter-spacing:.12em}.desktop-image{min-height:430px;display:flex;align-items:center;justify-content:center;padding:26px;background:#f6fbff}.desktop-image img{max-height:405px;width:auto;object-fit:contain}.desktop-meta{display:grid;grid-template-columns:repeat(4,1fr)}.desktop-meta span{padding:13px 15px;border-right:1px solid var(--line);font-size:11px;color:#637889}.desktop-meta span:last-child{border-right:0}
.route{padding:90px 0;background:#fff}.route-grid{display:grid;grid-template-columns:.62fr 1.38fr;gap:70px}.route-head p,.related-grid>div>span,.faq-grid>div>span,.cases-head>span{color:#4a83b4;font-size:10px;font-weight:900;letter-spacing:.14em}.route-head h2,.files-copy h2,.check-title h2,.retry-copy h2,.cases-head h2,.related-grid h2,.faq-grid h2,.final h2{margin:0;font-size:clamp(30px,3.2vw,44px);line-height:1.16;letter-spacing:-.04em}.route ol{list-style:none;margin:0;padding:0;border-top:2px solid var(--deep)}.route li{display:grid;grid-template-columns:46px 1fr;gap:18px;padding:20px 0;border-bottom:1px solid var(--line)}.route li>span{color:var(--blue);font-size:11px;font-weight:900}.route h3{margin:0;font-size:19px}.route p{margin:4px 0 0;color:var(--muted)}
.files{padding:95px 0;background:var(--ice)}.files-grid{display:grid;grid-template-columns:1fr 1fr;gap:62px;align-items:center}.files figure{margin:0;padding:17px;background:#fff;border:1px solid #cbdce8}.figbar{display:flex;justify-content:space-between;padding:0 2px 12px;color:#6b879c;font-size:9px;letter-spacing:.12em}.files figure img{max-height:430px;width:auto;margin:auto;object-fit:contain}.files figcaption{text-align:center;padding-top:10px;color:#6e7f8c;font-size:12px}.files-copy>p:not(.kicker){color:var(--muted)}.file-lines{border-top:1px solid #bfd2df;margin-top:25px}.file-lines>div{display:grid;grid-template-columns:34px 130px 1fr;gap:14px;padding:15px 0;border-bottom:1px solid #bfd2df}.file-lines span{color:var(--blue);font-weight:900}.file-lines p{margin:0;color:var(--muted)}.text-cta{display:inline-block;margin-top:24px;color:#236da8;text-decoration:none;font-weight:900}
.windows-check{padding:80px 0;background:#fff}.check-grid{display:grid;grid-template-columns:.58fr 1.42fr;gap:60px}.check-title>span{color:#5890bd;font-size:10px;font-weight:900;letter-spacing:.13em}.checks{display:grid;grid-template-columns:1fr 1fr;border-top:2px solid var(--deep);border-left:1px solid var(--line)}.checks article{padding:22px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.checks b{font-size:18px}.checks p{color:var(--muted);font-size:13px}
.retry{padding:95px 0;background:var(--deep);color:#fff}.retry-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:70px;align-items:center}.big-no{display:block;color:#2c506f;font-size:70px;line-height:1;font-weight:900}.retry-copy>p:not(.kicker){color:#bed0de}.retry-copy>a{display:inline-flex;margin-top:22px;padding:11px 20px;background:var(--blue2);color:#09233a;text-decoration:none;font-weight:900}.retry-visual{margin:0;padding:18px;background:#0e2437;border:1px solid rgba(255,255,255,.1)}.retry-visual img{max-height:440px;width:auto;margin:auto;object-fit:contain}
.cases{padding:90px 0;background:#f5faff}.cases-head{display:grid;grid-template-columns:180px 1fr;gap:20px;margin-bottom:28px}.case-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:2px solid var(--deep);border-left:1px solid var(--line)}.case-grid article{padding:24px;min-height:245px;background:#fff;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.case-grid article>span{display:block;margin-bottom:28px;color:var(--blue);font-size:11px;font-weight:900}.case-grid h3{margin:0}.case-grid p{color:var(--muted);font-size:13px}.case-grid a{display:inline-block;margin-top:16px;color:#1768aa;text-decoration:none;font-weight:900}
.related{padding:82px 0;background:#fff}.related-grid{display:grid;grid-template-columns:.55fr 1.45fr;gap:70px}.related-grid nav{border-top:1px solid var(--line)}.related-grid nav a{min-height:82px;display:grid;grid-template-columns:100px 1fr 22px;gap:18px;align-items:center;border-bottom:1px solid var(--line);text-decoration:none}.related-grid small{color:#4d82ad;font-size:9px;font-weight:900}.related-grid b{color:var(--blue)}
.faq{padding:90px 0;background:var(--ice)}.faq-grid{display:grid;grid-template-columns:.58fr 1.42fr;gap:70px}.faq-list{border-top:1px solid #c8d9e5}.faq-list details{border-bottom:1px solid #c8d9e5}.faq-list summary{cursor:pointer;list-style:none;padding:20px 2px;font-size:18px;font-weight:900}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"+";float:right;color:var(--blue)}.faq-list details[open] summary:after{content:"−"}.faq-list p{margin:-2px 0 23px;padding-right:40px;color:var(--muted)}
.final{padding:58px 0;background:var(--blue);color:#fff}.final-grid{display:grid;grid-template-columns:110px 1fr auto;gap:28px;align-items:center}.final-grid>span{font-size:10px;font-weight:900;letter-spacing:.13em}.final p{margin:5px 0 0;color:#dfefff}.final a{min-width:210px;min-height:52px;display:inline-flex;align-items:center;justify-content:center;padding:10px 20px;background:var(--deep);color:#fff;text-decoration:none;font-weight:900}
footer{padding:52px 0 90px;background:#0a1d2c;color:#d7e4ee}.footer-grid{display:grid;grid-template-columns:1fr auto;gap:40px}.footer-grid img{height:31px;width:auto;max-width:155px;object-fit:contain;padding:6px 8px;background:#06131e}.footer-grid p{color:#8fa8ba;font-size:13px}.footer-grid nav{display:flex;gap:18px;flex-wrap:wrap}.footer-grid nav a{text-decoration:none;color:#d7e4ee;font-size:14px}.mobile-bar{display:none}
@media(max-width:900px){.win-head{grid-template-columns:1fr auto}.win-title,.win-head nav{display:none}.hero-top,.route-grid,.files-grid,.check-grid,.retry-grid,.related-grid,.faq-grid{grid-template-columns:1fr}.desktop-image{min-height:340px}.cases-head{grid-template-columns:1fr}.case-grid{grid-template-columns:1fr 1fr}.final-grid{grid-template-columns:1fr}.final a{width:100%}}
@media(max-width:600px){body{font-size:15px;padding-bottom:60px}.shell{width:min(100% - 28px,1200px)}.win-head{min-height:64px}.logo img{height:28px}.head-cta{font-size:12px;padding:8px 12px}.hero-inner{padding:55px 0}.hero h1{font-size:clamp(41px,13vw,58px)}.hero-actions{flex-direction:column}.primary,.secondary{width:100%}.desktop-image{min-height:250px;padding:15px}.desktop-image img{max-height:235px}.desktop-meta{grid-template-columns:1fr 1fr}.route,.files,.windows-check,.retry,.cases,.related,.faq{padding:62px 0}.file-lines>div{grid-template-columns:32px 1fr}.file-lines p{grid-column:2}.checks{grid-template-columns:1fr}.case-grid{grid-template-columns:1fr}.case-grid article{min-height:auto}.related-grid nav a{grid-template-columns:80px 1fr 20px}.faq-list p{padding-right:8px}.footer-grid{grid-template-columns:1fr}.mobile-bar{position:fixed;left:0;right:0;bottom:0;z-index:99;height:58px;display:grid;grid-template-columns:1fr auto;align-items:center;padding:8px 14px;background:#102b40;color:#fff}.mobile-bar a{padding:8px 14px;background:var(--blue);color:#fff;text-decoration:none;font-weight:900}}