:root{--paper:#f5f7fb;--white:#fff;--ink:#1d2734;--muted:#6d7888;--blue:#4f7fff;--blue2:#dce7ff;--navy:#1f3555;--line:#d8e0ee}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fbfcff;color:var(--ink);font-family:Arial,"Microsoft YaHei","PingFang SC",sans-serif;font-size:16px;line-height:1.8}img{display:block;max-width:100%;height:auto}a{color:inherit}.shell{width:min(1180px,calc(100% - 40px));margin:auto}.skip{position:fixed;top:-60px;left:12px;z-index:999;background:#fff;padding:10px}.skip:focus{top:12px}
.header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line)}.head-grid{min-height:72px;display:grid;grid-template-columns:180px 1fr auto;gap:24px;align-items:center}.brand{display:inline-flex;padding:6px 8px;background:#f5f8ff;border:1px solid var(--line)}.brand img{height:32px;width:auto;max-width:155px;object-fit:contain}.head-grid nav{display:flex;justify-content:center;gap:22px}.head-grid nav a{text-decoration:none;color:#47566a;font-size:13px}.head-cta{display:inline-flex;min-height:42px;align-items:center;justify-content:center;padding:8px 18px;background:var(--blue);color:#fff;text-decoration:none;font-weight:900;border-radius:999px}
.hero{padding:84px 0;background:linear-gradient(180deg,#fff,#f5f7fb)}.hero-wrap{display:grid;grid-template-columns:90px .95fr 1.05fr;gap:42px;align-items:center}.left-rail{display:flex;flex-direction:column;align-items:center;gap:20px;color:#7d8da6}.left-rail span{writing-mode:vertical-rl;transform:rotate(180deg);font-size:10px;letter-spacing:.18em;font-weight:900}.left-rail b{font-size:54px;color:#d4def4}.eyebrow,.section-head>span,.find-copy>span,.panel-copy>span,.retry span,.related-grid>div>span,.faq-grid>div>span{font-size:10px;font-weight:900;letter-spacing:.15em;color:#6586d6}.hero h1,.section-head h2,.find-copy h2,.panel-copy h2,.retry h2,.related-grid h2,.faq-grid h2,.final h2{margin:0;font-size:clamp(36px,4.7vw,64px);line-height:.98;letter-spacing:-.055em}.hero h1 em{display:block;font-style:normal;color:var(--blue)}.hero-copy p{max-width:580px;color:#677486}.hero-cta-row{display:flex;gap:14px;align-items:center;margin-top:24px}.hero-cta-row a{display:inline-flex;min-height:52px;align-items:center;justify-content:center;padding:10px 22px;background:var(--navy);color:#fff;text-decoration:none;font-weight:900;border-radius:999px}.hero-cta-row span{color:#7c8ea8;font-size:12px}.hero-visual{margin:0;padding:18px;background:#fff;border:1px solid var(--line);border-radius:28px;box-shadow:0 24px 70px rgba(79,127,255,.09)}.hero-visual img{max-height:440px;width:auto;margin:auto;object-fit:contain}
.ios{padding:86px 0;background:#fff}.ios-grid{display:grid;grid-template-columns:.58fr 1.42fr;gap:60px}.section-head h2,.find-copy h2,.panel-copy h2,.retry h2,.related-grid h2,.faq-grid h2,.final h2{font-size:clamp(30px,3.1vw,44px);line-height:1.13}.ios-list{display:grid;grid-template-columns:1fr 1fr;border-top:2px solid var(--navy);border-left:1px solid var(--line)}.ios-list article{padding:24px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.ios-list small{color:var(--blue);font-weight:900}.ios-list strong{display:block;margin-top:22px;font-size:20px}.ios-list p{color:var(--muted)}
.find{display:grid;grid-template-columns:1fr 1fr;background:var(--paper)}.find-visual,.find-copy{padding:78px 6vw}.find-visual{margin:0}.frame-top{display:flex;justify-content:space-between;padding:0 2px 12px;color:#7b8ca8;font-size:9px;letter-spacing:.13em}.frame-top b{font-size:20px;color:var(--blue)}.find-visual img{max-height:430px;width:auto;margin:auto;object-fit:contain}.find-copy p{color:var(--muted)}.find-lines{margin-top:24px;border-top:1px solid #d9e2ee}.find-lines>div{display:grid;grid-template-columns:40px 160px 1fr;gap:14px;padding:16px 0;border-bottom:1px solid #d9e2ee}.find-lines b{color:var(--blue)}.find-lines p{margin:0}.find-copy a{display:inline-flex;margin-top:24px;padding:11px 20px;background:#fff;color:var(--navy);text-decoration:none;font-weight:900;border-radius:999px;border:1px solid var(--line)}
.download-panel{padding:86px 0;background:#fff}.panel-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:center}.panel-copy p{color:var(--muted)}.panel-links{display:flex;gap:14px;flex-wrap:wrap;margin-top:24px}.panel-links a{display:inline-flex;min-height:48px;align-items:center;justify-content:center;padding:10px 18px;background:var(--blue);color:#fff;text-decoration:none;font-weight:900;border-radius:999px}.panel-visual{margin:0;padding:18px;background:#f6f9ff;border:1px solid var(--line);border-radius:24px}.panel-visual img{max-height:380px;width:auto;margin:auto;object-fit:contain}
.retry{padding:58px 0;background:#eff4ff}.retry-grid{display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center}.retry p{color:#6e7990}.retry a{display:inline-flex;min-width:220px;min-height:52px;align-items:center;justify-content:center;background:var(--navy);color:#fff;text-decoration:none;font-weight:900;border-radius:999px}
.related{padding:82px 0;background:#fff}.related-grid{display:grid;grid-template-columns:.56fr 1.44fr;gap:60px}.related-grid nav{border-top:1px solid var(--line)}.related-grid nav a{min-height:84px;display:grid;grid-template-columns:100px 1fr 20px;gap:18px;align-items:center;border-bottom:1px solid var(--line);text-decoration:none}.related-grid small{color:#6a88d9;font-size:9px;font-weight:900}.related-grid b{color:var(--blue)}
.faq{padding:86px 0;background:#f7f9fd}.faq-grid{display:grid;grid-template-columns:.58fr 1.42fr;gap:60px}.faq-list{border-top:1px solid var(--line)}.faq-list details{border-bottom:1px solid var(--line)}.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:-3px 0 22px;padding-right:36px;color:var(--muted)}
.final{padding:56px 0;background:var(--navy);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:.14em;color:#c8d5fb}.final p{margin:6px 0 0;color:#d9e2fb}.final a{min-width:200px;min-height:52px;display:inline-flex;align-items:center;justify-content:center;background:var(--blue);color:#fff;text-decoration:none;font-weight:900;border-radius:999px}
.footer{padding:50px 0 86px;background:#10161f;color:#d8dfea}.foot-grid{display:grid;grid-template-columns:1fr auto;gap:36px}.foot-grid img{height:31px;width:auto;max-width:155px;object-fit:contain;padding:6px 8px;background:#0b1017}.foot-grid p{color:#98a4ba;font-size:13px}.foot-grid nav{display:flex;gap:18px;flex-wrap:wrap}.foot-grid nav a{color:#d8dfea;text-decoration:none;font-size:14px}.mobile-bar{display:none}
@media(max-width:900px){.head-grid{grid-template-columns:1fr auto}.head-grid nav{display:none}.hero-wrap,.find,.panel-grid,.related-grid,.faq-grid{grid-template-columns:1fr}.left-rail{display:none}.ios-grid{grid-template-columns:1fr}.ios-list{grid-template-columns:1fr 1fr}.retry-grid{grid-template-columns:1fr}.retry a,.final a{width:100%}.final-grid{grid-template-columns:1fr}}
@media(max-width:600px){body{font-size:15px;padding-bottom:60px}.shell{width:min(100% - 28px,1180px)}.head-grid{min-height:64px}.brand img{height:28px}.head-cta{font-size:12px;padding:8px 12px}.hero{padding:56px 0}.hero h1{font-size:clamp(42px,14vw,60px)}.hero-cta-row{flex-direction:column;align-items:stretch}.hero-cta-row a{text-align:center}.hero-visual img,.find-visual img,.panel-visual img{max-height:300px}.ios,.download-panel,.related,.faq{padding:62px 0}.find-visual,.find-copy{padding:56px 22px}.find-lines>div{grid-template-columns:34px 1fr}.find-lines p{grid-column:2}.ios-list{grid-template-columns:1fr}.foot-grid{grid-template-columns:1fr}.mobile-bar{position:fixed;left:0;right:0;bottom:0;z-index:100;height:60px;display:grid;grid-template-columns:1fr auto;gap:10px;align-items:center;padding:8px 14px;background:rgba(16,22,31,.98);color:#fff;border-top:1px solid rgba(255,255,255,.1)}.mobile-bar a{min-height:42px;display:inline-flex;align-items:center;justify-content:center;padding:8px 15px;background:var(--blue);color:#fff;text-decoration:none;font-weight:900;border-radius:999px}}