*{box-sizing:border-box}html{scroll-behavior:smooth;background:#EEF5FB}body{margin:0;background:#EEF5FB;color:#243848;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.75;overflow-x:hidden}a{color:#1E6FB8;text-decoration:none}a:hover{text-decoration:underline}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(59,159,224,.38);outline-offset:2px}button,input{font:inherit}.skip-link{position:fixed;left:16px;top:-80px;z-index:5000;background:#10263A;color:#fff;padding:10px 14px;border-radius:8px}.skip-link:focus{top:8px}.site-top{position:fixed;inset:0 0 auto;z-index:1000;box-shadow:0 6px 20px rgba(16,38,58,.05)}.window-strip{height:22px;background:#1E6FB8;color:#fff}.top-inner,.viewport-inner,.tab-inner,.section-inner,.footer-inner{width:min(1220px,calc(100% - 32px));margin:0 auto}.top-inner{height:22px;display:flex;align-items:center;justify-content:space-between;font-size:12px}.strip-brand,.icon-action{color:#fff}.strip-brand:hover{text-decoration:none}.icon-action{border:0;background:transparent;padding:0 4px;min-height:22px;cursor:pointer}.viewport-bar{height:70px;background:#fff;border-bottom:1px solid rgba(30,111,184,.16)}.viewport-inner{height:100%;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:14px}.brand-link{justify-self:start;display:flex;align-items:center;min-width:44px;min-height:44px}.brand-logo{display:block;max-width:190px;height:36px;object-fit:contain;object-position:left center}.brand-text{font-weight:800;font-size:20px;color:#10263A}.toolbox-button{justify-self:center;border:1px solid rgba(30,111,184,.28);background:#D7E8F4;color:#10263A;border-radius:10px;padding:10px 18px;min-height:44px;cursor:pointer}.app-link{justify-self:end;display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:8px 16px;border-radius:10px;background:linear-gradient(135deg,#62B7EE 0%,#3B9FE0 48%,#1E6FB8 100%);color:#fff;font-weight:700}.app-link:hover{text-decoration:none}.tab-rail{height:44px;background:#A9D6F2;border-bottom:1px solid rgba(30,111,184,.24)}.tab-inner{height:44px;display:flex;align-items:center;gap:8px;overflow:hidden}.tab-inner a{display:inline-flex;align-items:center;height:32px;padding:0 12px;color:#10263A;border-radius:8px;white-space:nowrap}.tab-inner a.active{background:#3B9FE0;color:#fff;font-weight:700}.site-main{padding-top:136px}.section{padding:52px 0}.section.tight{padding:34px 0}.section.alt{background:#E3EEF7}.section.white{background:#fff}.eyebrow{font-size:13px;letter-spacing:.12em;color:#1E6FB8;font-weight:800;margin:0 0 8px}.section h1,.section h2,.section h3{color:#10263A;line-height:1.25;margin-top:0}.section h1{font-size:clamp(28px,4vw,32px);margin-bottom:14px}.section h2{font-size:clamp(22px,3vw,27px);margin-bottom:12px}.section h3{font-size:18px;margin-bottom:8px}.lead{font-size:18px;color:#365064;max-width:880px}.prose{max-width:900px}.prose p{margin:0 0 18px}.hero-copy{padding:26px 0 4px}.button-row{display:flex;gap:12px;flex-wrap:wrap}.button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:9px 18px;border-radius:10px;font-weight:700}.button.primary{background:linear-gradient(135deg,#62B7EE 0%,#3B9FE0 48%,#1E6FB8 100%);color:#fff}.button.secondary{background:#fff;color:#1E6FB8;border:1px solid rgba(59,159,224,.38)}.button:hover{text-decoration:none;transform:translateY(-1px)}.media-slot{width:100%;border:1px solid rgba(30,111,184,.16);background:#D7E8F4;border-radius:14px;overflow:hidden;display:flex;align-items:center;justify-content:center}.media-slot img{display:block;width:100%;height:100%;object-fit:contain;object-position:center}.media-placeholder{width:100%;height:100%;min-height:180px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#EEF5FB,#D7E8F4);color:#1E6FB8;font-weight:800;letter-spacing:.08em}.hero-media{height:min(300px,42vw);min-height:190px}.section-media{height:230px}.card-media{height:205px}.app-media{height:420px;max-width:330px}.icon-media{height:72px;width:72px;flex:0 0 72px}.icon-media .media-placeholder{min-height:72px;font-size:11px}.tag-grid,.card-grid,.theme-grid,.info-grid,.feature-grid,.footer-grid{display:grid;gap:16px}.tag-grid{grid-template-columns:repeat(3,1fr)}.tag-card,.card,.panel,.policy-card,.faq-item,.index-row,.timeline-item,.shelf-row{background:#fff;border:1px solid rgba(30,111,184,.16);border-radius:14px;box-shadow:0 16px 40px rgba(16,38,58,.08)}.tag-card{padding:20px;border-top:4px solid #62B7EE}.tag-card:nth-child(even){border-top-color:#2FA8A0}.tag-card p{margin:6px 0 12px}.card-grid{grid-template-columns:repeat(3,1fr)}.card{padding:16px}.card .media-slot{margin-bottom:16px}.card p{margin:0 0 12px}.theme-grid{grid-template-columns:repeat(3,1fr)}.theme-tile{padding:22px;border-radius:12px;background:#D7E8F4;border:1px solid rgba(30,111,184,.16);min-height:170px}.theme-tile:nth-child(2n){background:#E7F3F0}.theme-tile p{margin:6px 0 12px}.number-list{display:grid;gap:12px}.number-item{display:grid;grid-template-columns:64px 1fr;gap:14px;align-items:start;padding:16px 0;border-bottom:1px solid rgba(30,111,184,.16)}.number-item:last-child{border-bottom:0}.big-number{font-size:34px;line-height:1;color:#1E6FB8;font-weight:900}.number-item p{margin:4px 0 0}.split{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(280px,.9fr);gap:28px;align-items:center}.index-list{display:grid;gap:12px}.index-row{display:grid;grid-template-columns:56px 1fr auto;gap:14px;align-items:center;padding:16px 18px}.index-row .num{font-size:24px;font-weight:900;color:#1E6FB8}.index-row p{margin:2px 0 0;color:#5A7388}.shelf{display:grid;gap:12px}.shelf-row{padding:18px;display:grid;grid-template-columns:120px 1fr auto;gap:16px;align-items:center;border-left:5px solid #62B7EE}.shelf-row:nth-child(even){border-left-color:#2FA8A0}.status{display:inline-flex;align-items:center;min-height:32px;padding:2px 10px;border-radius:8px;background:#D7E8F4;color:#1E6FB8;font-weight:800}.timeline{position:relative;margin-left:12px;padding-left:30px}.timeline:before{content:"";position:absolute;left:6px;top:12px;bottom:12px;width:2px;background:#62B7EE}.timeline-item{position:relative;padding:20px;margin-bottom:16px}.timeline-item:before{content:"";position:absolute;left:-31px;top:25px;width:12px;height:12px;border-radius:50%;background:#1E6FB8;border:3px solid #EEF5FB}.info-grid{grid-template-columns:repeat(2,1fr)}.panel,.policy-card{padding:22px}.feature-grid{grid-template-columns:repeat(4,1fr)}.feature-card{padding:18px;border-radius:12px;background:#fff;border:1px solid rgba(30,111,184,.16)}.feature-card p{margin:6px 0 0}.note-article{max-width:900px}.note-article h2{margin-top:38px}.editor-label{display:inline-flex;background:#D7E8F4;color:#1E6FB8;border-radius:8px;padding:4px 10px;font-size:13px;font-weight:800}.callout{padding:20px 22px;background:#D7E8F4;border-left:4px solid #1E6FB8;border-radius:0 12px 12px 0;margin:22px 0}.app-showcase{display:grid;grid-template-columns:330px 1fr;gap:32px;align-items:center}.app-title{display:flex;gap:16px;align-items:center;margin-bottom:18px}.app-title h1,.app-title h2{margin:0}.faq-list{display:grid;gap:14px}.faq-item{padding:20px}.faq-item h2{font-size:19px;margin-bottom:8px}.faq-item p{margin:0}.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.contact-card{background:#fff;border:1px solid rgba(30,111,184,.16);border-radius:14px;padding:22px}.mini-links{display:flex;gap:10px;flex-wrap:wrap}.mini-links a{display:inline-flex;min-height:40px;align-items:center;padding:5px 11px;background:#fff;border:1px solid rgba(30,111,184,.16);border-radius:8px}.breadcrumbs{display:flex;gap:8px;flex-wrap:wrap;font-size:13px;color:#7E93A6;margin-bottom:14px}.legal-nav{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0}.legal-nav a{display:inline-flex;align-items:center;min-height:40px;padding:5px 11px;border:1px solid rgba(30,111,184,.16);border-radius:8px;background:#fff}.site-footer{background:#10263A;color:#C7D8E6;padding:48px 0 32px}.footer-brand{display:flex;align-items:center;gap:14px;margin-bottom:30px}.footer-logo{height:32px;max-width:180px;object-fit:contain;filter:brightness(0) invert(1)}.footer-brand strong{display:block;color:#fff}.footer-brand span{font-size:12px}.footer-grid{grid-template-columns:repeat(4,1fr);margin-bottom:28px}.footer-grid h2{font-size:14px;color:#fff;margin:0 0 10px}.footer-grid a{display:block;color:#C7D8E6;margin:5px 0}.footer-notice{border-top:1px solid rgba(255,255,255,.12);padding-top:20px}.copyright{font-size:13px;color:#8FA9BC}.overlay{position:fixed;inset:0;z-index:1990;background:rgba(16,38,58,.45);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}.toolbox{position:fixed;z-index:2000;right:0;top:0;height:100dvh;width:min(420px,86vw);background:#EEF5FB;box-shadow:-18px 0 45px rgba(16,38,58,.18);transform:translateX(104%);visibility:hidden;pointer-events:none;transition:.25s}.toolbox.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}.toolbox-head{height:76px;padding:0 18px;border-bottom:1px solid rgba(30,111,184,.16);display:flex;align-items:center;justify-content:space-between;background:#fff}.toolbox-brand{display:flex;align-items:center;gap:10px}.toolbox-brand img{height:28px;max-width:150px;object-fit:contain}.toolbox-brand span{display:block;font-size:11px;color:#5A7388}.close-button{min-height:44px;padding:8px 12px;border-radius:9px;border:1px solid rgba(30,111,184,.2);background:#fff;color:#1E6FB8;cursor:pointer}.toolbox-scroll{height:calc(100dvh - 76px);overflow-y:auto;padding:18px}.tool-group{margin-bottom:20px}.tool-group h2{font-size:13px;color:#5A7388;margin:0 0 8px}.tool-group a{display:block;padding:12px;border-radius:10px;color:#243848}.tool-group a:hover{background:#D7E8F4;text-decoration:none}.tool-group strong{display:block;color:#10263A}.tool-group span{display:block;font-size:13px;color:#5A7388}.search-panel{position:fixed;z-index:2010;top:92px;left:50%;width:min(760px,calc(100% - 32px));transform:translate(-50%,-14px);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.search-panel.is-open{transform:translate(-50%,0);opacity:1;visibility:visible;pointer-events:auto}.search-card{background:#fff;border:1px solid rgba(30,111,184,.16);border-radius:14px;padding:20px;box-shadow:0 16px 40px rgba(16,38,58,.16)}.search-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.search-card label{display:block;color:#5A7388;margin-bottom:8px}.search-card input{width:100%;height:48px;border:1px solid rgba(30,111,184,.28);border-radius:10px;padding:0 14px}.search-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.search-links a{display:inline-flex;align-items:center;min-height:40px;padding:5px 12px;border-radius:8px;background:#D7E8F4;color:#10263A}.mobile-bottom{display:none}.modal-open{overflow:hidden}.spacer-top{margin-top:24px}
@media(max-width:900px){.card-grid,.theme-grid{grid-template-columns:repeat(2,1fr)}.feature-grid{grid-template-columns:repeat(2,1fr)}.split,.app-showcase{grid-template-columns:1fr}.app-media{margin:0 auto}.footer-grid{grid-template-columns:repeat(2,1fr)}.tag-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:680px){body{padding-bottom:calc(58px + env(safe-area-inset-bottom))}.site-main{padding-top:92px}.tab-rail{display:none}.viewport-inner{width:100%;padding:0 8px;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);gap:6px}.brand-link{min-width:0;overflow:hidden}.brand-logo{height:30px;max-width:128px}.brand-text{font-size:17px;white-space:nowrap}.toolbox-button{padding:8px 11px;min-width:76px}.app-link{padding:8px 10px;white-space:nowrap}.section{padding:38px 0}.section-inner{width:calc(100% - 32px)}.hero-media{height:min(300px,58vw);min-height:170px}.section-media{height:210px}.card-grid,.theme-grid,.tag-grid,.info-grid,.feature-grid,.contact-grid{grid-template-columns:1fr}.card-media{height:220px}.number-item{grid-template-columns:52px 1fr}.shelf-row{grid-template-columns:1fr}.index-row{grid-template-columns:44px 1fr}.index-row>a{grid-column:2}.footer-grid{grid-template-columns:1fr 1fr}.search-panel{top:0;left:0;width:100%;height:100dvh;transform:none;background:#D7E8F4;padding:16px}.search-panel.is-open{transform:none}.search-card{height:100%;overflow:auto}.mobile-bottom{position:fixed;z-index:980;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(5,1fr);height:calc(50px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:#fff;border-top:1px solid rgba(30,111,184,.18)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;color:#365064;font-size:13px}.mobile-bottom a.active{background:#3B9FE0;color:#fff;font-weight:800}.site-footer{padding-bottom:80px}.toolbox{width:86vw}}
@media(max-width:420px){.footer-grid{grid-template-columns:1fr}.app-link{font-size:13px}.toolbox-button{font-size:14px}.brand-logo{max-width:105px}.button-row{display:grid;grid-template-columns:1fr}.button{width:100%}}

/* strict tap target overrides */
.tab-inner a{height:44px;display:inline-flex;align-items:center}
.mini-links a,.search-links a,.legal-nav a{min-height:44px;display:inline-flex;align-items:center}
.footer-grid a{min-height:44px;display:flex;align-items:center}
.band-soft{background:#E3EEF7}
.narrow{max-width:900px}
.icon-action,.strip-brand{position:relative;min-width:44px}
.icon-action::after,.strip-brand::after{content:"";position:absolute;inset:-11px -4px}