:root{--blue:#1478F2;--blue2:#348FFF;--deep:#0765D4;--navy:#091E39;--title:#17243A;--text:#3C495D;--muted:#6E7988;--soft:#99A2AF;--sub:#F7FAFE;--ice:#EDF5FF;--ice2:#E3F0FF;--gray:#F4F6F9;--line:rgba(20,120,242,.12);--nline:rgba(20,40,70,.08);--shadow:0 14px 38px rgba(35,72,118,.08);--bshadow:0 16px 44px rgba(20,120,242,.14);--shell:min(1320px,calc(100% - 40px));--head:72px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.75;overflow-x:hidden}body.lock{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}img{max-width:100%;height:auto;display:block}.shell{width:var(--shell);margin:auto}.skip{position:fixed;left:14px;top:-60px;z-index:999;background:#fff;color:var(--blue);padding:9px 13px;border-radius:10px;box-shadow:var(--shadow)}.skip:focus{top:10px}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid rgba(20,120,242,.28);outline-offset:3px}.mobile-only{display:none!important}
.site-head{position:fixed;inset:0 0 auto;height:var(--head);background:rgba(255,255,255,.97);border-bottom:1px solid var(--nline);z-index:120;backdrop-filter:blur(12px)}.topbar{height:100%;display:flex;align-items:center;gap:18px}.brand{display:inline-flex;align-items:center;flex:none;min-height:44px}.brand img{max-width:190px;max-height:48px;object-fit:contain}.brand-fallback{display:inline-flex;flex-direction:column;background:var(--blue);color:#fff;padding:8px 11px;border-radius:10px;line-height:1}.brand-fallback b{font-size:18px}.brand-fallback small{font-size:8px;margin-top:5px;letter-spacing:.12em}.brand-fallback.inverse{background:#fff;color:var(--blue)}.main-nav{display:flex;white-space:nowrap;gap:2px;min-width:0}.main-nav a,.head-actions>a{min-height:44px;padding:0 11px;border-radius:10px;display:flex;align-items:center;font-size:14px;font-weight:650;position:relative}.main-nav a:hover,.head-actions>a:hover{background:var(--ice)}.main-nav a.current,.head-actions>a.current{color:var(--blue)}.main-nav a.current:after,.head-actions>a.current:after{content:"";position:absolute;width:5px;height:5px;border-radius:50%;background:var(--blue);bottom:3px;left:50%;transform:translateX(-50%)}.head-actions{margin-left:auto;display:flex;align-items:center;gap:4px}.icon-btn{border:0;background:transparent;min-width:44px;height:44px;border-radius:11px;color:var(--title);display:inline-flex;align-items:center;justify-content:center;gap:7px}.icon-btn:hover{background:var(--ice)}.grid-ico,.grid-ico:before,.grid-ico:after{width:4px;height:4px;background:currentColor;border-radius:1px;box-shadow:7px 0 currentColor,14px 0 currentColor}.grid-ico{position:relative;margin-right:14px}.grid-ico:before,.grid-ico:after{content:"";position:absolute;left:0}.grid-ico:before{top:7px}.grid-ico:after{top:14px}.search-ico{width:16px;height:16px;border:2px solid currentColor;border-radius:50%;position:relative;display:inline-block}.search-ico:after{content:"";position:absolute;width:7px;height:2px;background:currentColor;right:-6px;bottom:-3px;transform:rotate(45deg);border-radius:2px}.page-main{padding-top:var(--head);min-height:70vh}
.mask{position:fixed;inset:var(--head) 0 0;background:rgba(9,30,57,.34);opacity:0;visibility:hidden;pointer-events:none;z-index:130;transition:.2s}.mask.open{opacity:1;visibility:visible;pointer-events:auto}.overlay{position:fixed;left:0;right:0;top:var(--head);max-height:85vh;overflow:auto;background:#fff;box-shadow:0 22px 60px rgba(9,30,57,.16);opacity:0;visibility:hidden;pointer-events:none;transform:translateY(-18px);z-index:140;transition:.2s}.overlay.open{opacity:1;visibility:visible;pointer-events:auto;transform:none}.overlay-inner{padding:22px 0 30px}.overlay-head{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px;margin-bottom:18px}.overlay-head>strong{justify-self:center;color:var(--title);font-size:19px}.overlay-head .close{justify-self:end;font-size:28px}.explore-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}.explore-grid section{background:var(--sub);border:1px solid var(--nline);border-radius:14px;padding:15px}.explore-grid h2{font-size:14px;color:var(--blue);margin:0 0 7px}.explore-grid a{display:block;border-radius:10px;padding:9px}.explore-grid a:hover{background:#fff;box-shadow:0 8px 18px rgba(35,72,118,.06)}.explore-grid b{display:block;color:var(--title);font-size:14px}.explore-grid span{display:block;color:var(--muted);font-size:12px;line-height:1.55;margin-top:2px}.search-inner{max-width:920px}.search-head{grid-template-columns:1fr auto}.search-head>strong{justify-self:start}.search-box{height:58px;border:1px solid var(--line);background:var(--sub);border-radius:15px;display:flex;align-items:center;gap:13px;padding:0 18px}.search-box input{flex:1;border:0;background:transparent;color:var(--title);font-size:17px;min-width:0;outline:0}.keywords{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0}.keywords button{border:1px solid var(--line);background:#fff;color:var(--muted);border-radius:999px;padding:7px 12px}.keywords button:hover{background:var(--ice);color:var(--blue)}.search-list{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.search-list a{border:1px solid var(--nline);border-radius:13px;padding:14px}.search-list a:hover{border-color:var(--line);box-shadow:var(--shadow)}.search-list b{display:block;color:var(--title)}.search-list span{display:block;color:var(--muted);font-size:12px;margin-top:3px}
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.longread{max-width:900px}.longread p{font-size:16px;line-height:2;margin:0 0 22px}.longread h2{margin-top:48px}.longread h3{margin-top:32px}.timeline{border-left:2px solid var(--line);margin-left:16px}.timeline article{position:relative;margin-left:34px;padding:0 0 32px}.timeline article:before{content:"";position:absolute;left:-42px;top:3px;width:13px;height:13px;border-radius:50%;background:#fff;border:3px solid var(--blue)}.node{font-size:12px;color:var(--blue);font-weight:850;letter-spacing:.08em}.number-list{counter-reset:n}.number-item{counter-increment:n;display:grid;grid-template-columns:90px 1fr;gap:20px;padding:28px 0;border-bottom:1px solid var(--nline)}.number-item:before{content:counter(n,decimal-leading-zero);font-size:44px;line-height:1;font-weight:850;color:rgba(20,120,242,.42)}.tag-wall{display:flex;flex-wrap:wrap;gap:12px}.tag-wall a{display:inline-flex;align-items:center;min-height:44px;border:1px solid var(--line);background:#fff;border-radius:999px;padding:10px 18px}.tag-wall a:nth-child(3n){font-size:21px;padding:16px 26px;background:var(--ice)}.tag-wall a:nth-child(4n){background:var(--sub)}.feature{display:grid;grid-template-columns:180px 1fr;gap:28px;padding:34px 0;border-bottom:1px solid var(--nline)}.feature-id{font-size:24px;color:var(--blue);font-weight:850}.feature p{max-width:820px}.notice-board{border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#fff}.notice{display:grid;grid-template-columns:130px 1fr auto;gap:18px;align-items:center;padding:20px 22px;border-bottom:1px solid var(--nline)}.notice:last-child{border-bottom:0}.status{justify-self:start;background:var(--ice);color:var(--blue);font-size:12px;font-weight:800;border-radius:999px;padding:5px 9px}.principles{display:grid;grid-template-columns:repeat(2,1fr);border:1px solid var(--nline);border-radius:18px;overflow:hidden}.principles article{padding:28px;background:#fff;border-right:1px solid var(--nline);border-bottom:1px solid var(--nline)}.principles article:nth-child(even){border-right:0}.principles article:nth-last-child(-n+2){border-bottom:0}.folder-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.folder{position:relative;border:1px solid var(--line);background:#fff;border-radius:10px 18px 18px 18px;padding:24px;margin-top:13px}.folder:before{content:"";position:absolute;top:-13px;left:-1px;width:38%;height:14px;background:#fff;border:1px solid var(--line);border-bottom:0;border-radius:9px 11px 0 0}.deep{background:var(--navy);color:#E9F3FF}.deep h2,.deep h3{color:#fff}.deep p{color:#c9d8eb}.deep-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:40px}.deep-points{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.deep-points span{border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:14px}.privacy-box{border:1px solid rgba(20,120,242,.24);border-radius:18px;padding:30px;background:#fff}.plain{list-style:none;padding:0;margin:0}.plain li{padding:14px 0;border-bottom:1px solid var(--nline)}.plain li:last-child{border-bottom:0}
.home-console{padding:48px 0 56px;background:linear-gradient(180deg,var(--sub),#fff)}.console{display:grid;grid-template-columns:28fr 47fr 25fr;gap:18px}.panel{border:1px solid var(--nline);border-radius:18px;background:#fff;padding:26px}.intro{display:flex;flex-direction:column;justify-content:center}.intro h1{font-size:clamp(34px,4vw,54px)}.cover{padding:0;min-height:500px;overflow:hidden;background:linear-gradient(135deg,var(--ice2),var(--sub));display:flex;align-items:center;justify-content:center;position:relative}.cover img{width:100%;height:100%;object-fit:contain}.cover-fallback{text-align:center;color:var(--blue);padding:40px}.cover-fallback b{display:block;font-size:clamp(42px,6vw,76px);line-height:1}.cover-fallback small{display:block;letter-spacing:.14em;margin-top:12px}.side{background:var(--title);color:#fff}.side h2{font-size:20px;color:#fff}.side a{display:block;padding:17px 0;border-bottom:1px solid rgba(255,255,255,.12)}.side a:last-child{border:0}.side span{display:block;color:#c9d8eb;font-size:13px;margin-top:4px;line-height:1.65}.content-index{border-top:1px solid var(--nline);border-bottom:1px solid var(--nline)}.content-index>div{display:flex;overflow-x:auto;scrollbar-width:none;overscroll-behavior-inline:contain}.content-index>div::-webkit-scrollbar{display:none}.content-index a{flex:0 0 auto;display:flex;align-items:center;min-height:52px;padding:0 12px;color:var(--muted);font-size:14px}.content-index a:before{content:"";width:5px;height:5px;border-radius:50%;background:#c6ced8;margin-right:8px}.content-index a:hover{color:var(--blue);background:var(--sub)}.content-index a:hover:before{background:var(--blue)}.map-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}.map-grid article{border:1px solid var(--nline);background:#fff;border-radius:18px;padding:24px}.map-grid article:nth-child(1){grid-column:span 7;grid-row:span 2;background:linear-gradient(135deg,var(--ice),#fff)}.map-grid article:nth-child(2),.map-grid article:nth-child(3){grid-column:span 5}.map-grid article:nth-child(n+4){grid-column:span 4}.week-board{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--nline);border-radius:18px;overflow:hidden}.week-col{padding:24px;border-right:1px solid var(--nline)}.week-col:last-child{border-right:0}.week-col>span{color:var(--blue);font-size:12px;font-weight:850}.week-col article{padding:15px 0;border-bottom:1px solid var(--nline)}.week-col article:last-child{border:0}.story-layout{display:grid;grid-template-columns:1.3fr .7fr;gap:28px}.story-main{background:var(--ice);border-radius:18px;padding:34px}.story-main .quote{font-size:22px;line-height:1.9;border-left:3px solid var(--blue);padding-left:20px}.story-side{display:grid;gap:12px}.story-side article{border:1px solid var(--nline);border-radius:14px;padding:18px}.app-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}.app-visual{min-height:500px;border:1px solid var(--line);border-radius:26px;background:linear-gradient(160deg,var(--ice2),var(--sub));display:flex;align-items:center;justify-content:center;padding:22px}.app-visual img{max-height:470px;object-fit:contain}.phone{width:min(270px,80%);aspect-ratio:9/18;border:8px solid var(--title);border-radius:34px;background:#fff;padding:24px 18px;box-shadow:var(--bshadow)}.phone b{display:block;background:var(--blue);color:#fff;border-radius:12px;padding:12px;text-align:center}.phone span{display:block;height:68px;background:var(--ice);border-radius:12px;margin-top:14px}.faq details{border-bottom:1px solid var(--nline)}.faq summary{list-style:none;cursor:pointer;padding:22px 0;color:var(--title);font-weight:780;font-size:17px}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";float:right;color:var(--blue);font-size:22px}.faq details[open] summary:after{content:"−"}.faq details p{max-width:900px;margin:0 0 22px}.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.contact-grid article{border-left:3px solid var(--blue);background:var(--sub);padding:20px 22px}.form-note{background:var(--ice);border:1px solid var(--line);border-radius:16px;padding:20px}
.site-footer{background:var(--navy);color:#E9F3FF;padding:58px 0 calc(30px + env(safe-area-inset-bottom))}.footer-grid{display:grid;grid-template-columns:2fr repeat(4,1fr);gap:32px}.footer-grid h2{font-size:14px;color:#fff}.footer-grid a:not(.brand){display:block;color:#c7d8ea;font-size:13px;padding:5px 0}.footer-grid a:hover{color:#fff}.footer-brand p{max-width:420px;color:#b8cade;font-size:13px}.footer-note{display:flex;justify-content:space-between;gap:30px;border-top:1px solid rgba(255,255,255,.1);padding-top:20px;margin-top:34px;color:#9fb4cb;font-size:12px}.footer-note p:first-child{max-width:800px}
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@media(max-width:760px){:root{--shell:calc(100% - 30px);--head:62px}.desktop-only{display:none!important}.mobile-only{display:flex!important}.topbar{justify-content:space-between;gap:8px}.menu-mobile{width:44px}.topbar>.brand{position:absolute;left:50%;transform:translateX(-50%);max-width:calc(100% - 120px)}.brand img{max-height:38px}.brand-fallback{padding:7px 9px}.brand-fallback b{font-size:16px}.brand-fallback small{font-size:7px}.head-actions{margin-left:auto}.page-main{padding-top:var(--head);padding-bottom:66px}.mask{inset:var(--head) 0 58px}.overlay{top:var(--head);bottom:58px;max-height:none}.overlay-head{position:sticky;top:0;background:#fff;z-index:2;padding:8px 0}.explore-grid{grid-template-columns:1fr}.search-list{grid-template-columns:1fr 1fr}.mobile-bottom{position:fixed;inset:auto 0 0;height:calc(58px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:rgba(255,255,255,.97);border-top:1px solid var(--nline);z-index:125;display:flex!important}.mobile-bottom a{flex:1;min-height:48px;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--muted);font-size:10px}.mobile-bottom a span{font-size:18px;line-height:1}.mobile-bottom a b{margin-top:3px}.mobile-bottom a.current{color:var(--blue)}.hero-inner{padding:52px 0 42px;grid-template-columns:1fr;gap:18px}h1{font-size:36px}.lead{font-size:16px}.section{padding:52px 0}.section-head{flex-direction:column;align-items:flex-start}.grid2,.grid3,.grid4,.folder-grid,.contact-grid,.principles{grid-template-columns:1fr}.principles article{border-right:0}.principles article:nth-last-child(2){border-bottom:1px solid var(--nline)}.number-item{grid-template-columns:62px 1fr;gap:12px}.number-item:before{font-size:32px}.feature{grid-template-columns:1fr;gap:8px}.notice{grid-template-columns:1fr;gap:7px}.deep-grid,.story-layout,.app-grid{grid-template-columns:1fr}.console{grid-template-columns:1fr}.intro{order:1}.cover{order:2;min-height:330px}.side{order:3}.map-grid{grid-template-columns:1fr}.map-grid article:nth-child(n){grid-column:auto;grid-row:auto}.week-board{grid-template-columns:1fr}.week-col{border-right:0;border-bottom:1px solid var(--nline)}.week-col:last-child{border-bottom:0}.footer-grid{grid-template-columns:1fr 1fr;gap:22px}.footer-brand{grid-column:1/-1;grid-row:auto}.footer-note{flex-direction:column}.site-footer{padding-bottom:calc(82px + env(safe-area-inset-bottom))}}
@media(max-width:430px){.search-list{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.deep-points{grid-template-columns:1fr}.tag-wall a:nth-child(3n){font-size:18px;padding:13px 19px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.mask,.overlay{transition:none}*{animation:none!important}}