:root{--navy:#091e49;--blue:#0869ed;--teal:#00a3a6;--muted:#60748e;--line:#dce6f1;--paper:#f3f7fc}*{box-sizing:border-box}body{margin:0;background:#dfe7ef;color:var(--navy);font-family:"Avenir Next","PingFang SC","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.7}.phone-site{max-width:480px;margin:auto;background:#fff;min-height:100dvh;position:relative}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit;cursor:pointer}a,button{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #ed7c3c;outline-offset:3px}header{height:68px;padding:0 22px;display:flex;align-items:center;justify-content:space-between;background:#fffffff5;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}.brand{display:flex;align-items:center;gap:10px}.brand b{font-size:17px;letter-spacing:1px}.brand 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.section.solution-path-image{padding:16px 16px 8px}
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.solution-path h2{font-size:25px;margin:0 0 12px;line-height:1.4}
.solution-path .eyebrow{letter-spacing:.5px;margin-bottom:8px}
.solution-path .intro{font-size:14px;line-height:1.8}
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.path-icon img{width:30px;height:30px;object-fit:contain}
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.path-explanation summary{min-height:44px;display:flex;align-items:center;cursor:pointer;color:#0869ed;list-style:none}
.path-explanation summary::after{content:'＋';margin-left:auto}
.path-explanation[open] summary::after{content:'−'}
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.path-explanation p{margin:8px 0;line-height:1.7}
.path-explanation b{color:#19375a;margin-right:8px}
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.path-promise{border-top:1px solid #d8e7f6;margin:23px 0 0;padding-top:18px;color:#245a95;font-size:15px;font-weight:600}
.architecture-guide{font-size:12px;color:#60748e;margin:0 0 14px}
.unified-architecture{padding:13px;background:linear-gradient(145deg,#edf7ff,#e8f0fb);border:1px solid #dce6f1;border-radius:12px}
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.unified-architecture .layer summary b{font-size:15px}
.apos-introduction{padding:27px 24px 24px;background:linear-gradient(140deg,#fff 15%,#eff7ff 75%,#e5f2fe)}
.apos-full-name{margin:0 0 22px;color:#0869ed;font-size:16px;font-weight:600}
.apos-full-name span{display:block;font-size:11px;font-weight:400;letter-spacing:.1px;margin-top:3px}
.apos-introduction h1{font-size:clamp(25px,6.6vw,31px);line-height:1.5;letter-spacing:-.5px;margin:0}
.apos-title-rule{width:42px;height:3px;background:#0869ed;margin:22px 0}
.apos-introduction h2{font-size:23px;color:#0869ed;margin:0 0 14px}
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.apos-intro-diagrams{margin-top:16px}
.apos-intro-diagrams .mobile-diagram{margin:0}
.platform-support{text-align:center;color:#557da7;font-size:12px;margin:12px 0}
.page-heading .architecture-heading{font-size:27px;line-height:1.4;margin:6px 0 12px}
.mobile-home .eyebrow{letter-spacing:.5px}
.home-product{border-top:1px solid #dce6f1;margin-top:25px;padding-top:20px}
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.visual.home-visual img{height:310px!important;opacity:1}
.section.architecture-overview{padding-top:0}
.section-head .note{margin:0}
.mobile-diagram{margin:14px 0 18px}
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.architecture-map a b{font-size:14px;font-weight:600}
.architecture-map a i{margin-left:auto;font-style:normal;color:#0869ed}
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body.image-open{overflow:hidden}
#image-viewer{position:fixed;inset:0;width:100%;max-width:none;height:100dvh;max-height:none;margin:0;padding:0;border:0;background:#eef3f8;color:#091e49}
#image-viewer[open]{display:flex;flex-direction:column}
.image-toolbar{display:flex;align-items:center;gap:8px;padding:12px 14px;padding-top:max(12px,env(safe-area-inset-top));background:white;border-bottom:1px solid #dce6f1;flex-shrink:0}
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.image-scroll img{display:block;width:100%;height:auto;margin:auto;max-width:1400px}
.zoomed .image-scroll img{width:1100px;max-width:none;margin:0}
.image-hint{font-size:12px;color:#60748e;margin:0;padding:12px 16px max(12px,env(safe-area-inset-bottom));background:white}
.visual{height:170px}
.visual img{width:170%!important;height:220px!important;max-width:none;margin-left:-70%;transform:translateY(-25px)}