*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#F5FAFE;color:#2A4156;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}.lock-scroll{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}.topline{position:fixed;z-index:70;top:0;left:0;right:0;height:22px;background:#1B4A6E;color:#fff;font-size:12px}.topline-inner,.masthead-inner,.section-tabs-inner,.footer-inner,.page-shell{width:min(1120px,calc(100% - 32px));margin:0 auto}.topline-inner{height:22px;display:flex;align-items:center;justify-content:space-between}.text-button{border:0;background:transparent;color:#fff;min-height:22px;padding:0 6px}.masthead{position:fixed;z-index:69;top:22px;left:0;right:0;height:60px;background:#fff;border-bottom:1px solid rgba(74,163,224,.16)}.masthead-inner{height:60px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px}.brand-link{justify-self:start;display:flex;align-items:center;min-width:44px;min-height:44px}.logo-slot{display:flex;align-items:center}.logo-slot--header,.logo-slot--drawer,.logo-slot--footer{height:28px;min-width:42px}.logo-image{display:block;height:28px;width:auto;max-width:120px;object-fit:contain}.logo-fallback{font-size:16px;letter-spacing:.03em;color:#16324A}.logo-fallback--light{color:#fff}.drawer-button,.app-link,.icon-button,.button,.search-form button{min-height:44px;border-radius:10px;font-size:14px;display:inline-flex;align-items:center;justify-content:center;white-space:nowrap}.drawer-button{justify-self:center;border:1px solid rgba(74,163,224,.42);background:#fff;color:#1B4A6E;padding:0 18px}.app-link{justify-self:end;padding:0 16px;background:linear-gradient(135deg,#6BB8EC 0%,#4AA3E0 55%,#1B4A6E 100%);color:#fff}.section-tabs{position:fixed;z-index:68;top:82px;left:0;right:0;height:40px;background:#EAF5FC;border-bottom:1px solid rgba(74,163,224,.16)}.section-tabs-inner{height:40px;display:flex;justify-content:center;align-items:center;gap:8px}.section-tabs a{height:32px;min-width:72px;padding:0 14px;display:flex;align-items:center;justify-content:center;border-radius:9px;color:#1B4A6E;font-size:13px}.section-tabs a:hover,.section-tabs a:focus-visible{background:#fff;outline:2px solid rgba(74,163,224,.24);outline-offset:1px}.section-tabs a.is-active{background:#4AA3E0;color:#fff}.page-main{padding-top:122px;min-height:70vh}.page-shell{padding:34px 0 64px}.hero-card,.section-card,.article-card,.index-block,.notice-card,.faq-item,.timeline-item,.number-card,.shelf-card,.note-card{background:#fff;border:1px solid rgba(74,163,224,.16);border-radius:14px;box-shadow:0 12px 28px rgba(27,74,110,.08)}.hero-card{padding:26px}.eyebrow{font-size:12px;color:#4E6A80;letter-spacing:.08em;margin:0 0 6px}.hero-card h1,.page-heading h1{font-size:24px;line-height:1.3;color:#16324A;margin:0 0 12px}.hero-card p,.page-heading p{margin:0;max-width:820px}.button-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.button{padding:0 16px;border:1px solid transparent}.button--primary{background:linear-gradient(135deg,#6BB8EC 0%,#4AA3E0 55%,#1B4A6E 100%);color:#fff}.button--secondary{background:#fff;color:#1B4A6E;border-color:rgba(74,163,224,.42)}.button:hover,.button:focus-visible,.drawer-button:hover,.drawer-button:focus-visible,.app-link:hover,.app-link:focus-visible,.icon-button:hover,.icon-button:focus-visible,.search-form button:hover,.search-form button:focus-visible{transform:translateY(-1px);outline:2px solid rgba(74,163,224,.25);outline-offset:2px}.cover-slot,.media-slot{background:#EAF5FC;border:1px solid rgba(74,163,224,.16);border-radius:14px;display:flex;align-items:center;justify-content:center;overflow:hidden}.cover-slot{height:260px;margin-bottom:20px}.media-slot{height:200px;margin-bottom:16px}.media-slot--180{height:180px}.media-slot--app{height:min(360px,58vw)}.media-image{width:100%;height:100%;object-fit:contain;object-position:center}.grid-3,.grid-2,.index-grid,.footer-grid{display:grid;gap:16px}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.section-card,.article-card,.index-block,.notice-card,.number-card,.shelf-card,.note-card{padding:20px}.section-card h2,.index-block h2,.notice-card h2,.page-section h2{font-size:20px;color:#16324A;line-height:1.35;margin:0 0 10px}.section-card h3,.article-card h3,.number-card h3,.shelf-card h3,.note-card h3{font-size:16px;color:#16324A;line-height:1.45;margin:0 0 8px}.section-card p,.article-card p,.number-card p,.shelf-card p,.note-card p{margin:0}.home-section,.page-section{margin-top:24px}.page-heading{margin-bottom:20px}.lead{font-size:16px;color:#2A4156}.meta-line{font-size:13px;color:#6E8899}.numbered-list{list-style:none;padding:0;margin:0;display:grid;gap:10px}.numbered-list li{display:grid;grid-template-columns:44px 1fr;gap:12px;align-items:start;padding:13px;background:#F5FAFE;border-radius:10px;border:1px solid rgba(74,163,224,.16)}.num{font-weight:700;color:#4AA3E0;font-size:16px}.shelf-list{display:grid;gap:12px}.shelf-row{display:grid;grid-template-columns:120px 1fr auto;gap:14px;align-items:center;padding:14px;background:#F5FAFE;border-radius:10px;border:1px solid rgba(74,163,224,.16)}.shelf-row strong{color:#16324A}.shelf-row a{color:#1B4A6E;text-decoration:underline;text-underline-offset:3px}.timeline{position:relative;margin-left:8px;padding-left:28px;display:grid;gap:14px}.timeline:before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;background:#D7EAF6}.timeline-item{position:relative;padding:18px}.timeline-item:before{content:"";position:absolute;left:-28px;top:24px;width:14px;height:14px;border-radius:50%;background:#4AA3E0;border:3px solid #EAF5FC}.status{display:inline-flex;align-items:center;min-height:28px;padding:0 10px;border-radius:999px;background:#EAF5FC;color:#1B4A6E;font-size:12px;margin-bottom:8px}.number-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px}.number-card .big-number{display:block;font-size:28px;line-height:1;color:#4AA3E0;font-weight:800;margin-bottom:12px}.note-strip{padding:14px 16px;background:#EAF5FC;border-left:4px solid #4AA3E0;border-radius:10px;color:#2A4156}.prose{max-width:820px}.prose p{margin:0 0 14px}.prose h2{margin-top:28px}.prose ul{padding-left:20px}.prose li{margin:6px 0}.question-list{display:grid;gap:12px}.faq-item{padding:18px}.faq-item h2{font-size:16px;margin:0 0 8px;color:#16324A}.faq-item p{margin:0}.search-panel{position:fixed;z-index:80;top:82px;left:0;right:0;padding:16px;pointer-events:auto}.search-panel[hidden]{display:none}.search-card{width:min(760px,calc(100% - 32px));margin:0 auto;background:#fff;border:1px solid rgba(74,163,224,.16);border-radius:14px;box-shadow:0 12px 28px rgba(27,74,110,.16);padding:18px}.search-card-head{display:flex;justify-content:space-between;gap:16px;align-items:flex-start}.search-card-head p{margin:3px 0 0;color:#4E6A80}.icon-button{border:1px solid rgba(74,163,224,.42);background:#fff;color:#1B4A6E;padding:0 14px}.search-form{display:grid;grid-template-columns:auto 1fr auto;gap:10px;align-items:center;margin-top:16px}.search-form label{font-size:13px}.search-form input{height:44px;border:1px solid rgba(74,163,224,.42);border-radius:10px;padding:0 12px;color:#16324A;background:#F5FAFE}.search-form button{border:0;padding:0 16px;background:#1B4A6E;color:#fff}.preset-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.preset-links a{min-height:36px;display:flex;align-items:center;padding:0 12px;border-radius:9px;background:#EAF5FC;color:#1B4A6E}.site-overlay{position:fixed;z-index:75;inset:0;background:rgba(22,50,74,.28);opacity:0;visibility:hidden;pointer-events:none;transition:.22s ease}.site-overlay.is-visible{opacity:1;visibility:visible;pointer-events:auto}.magazine-drawer{position:fixed;z-index:90;top:0;right:0;bottom:0;width:400px;max-width:86vw;background:#fff;transform:translateX(100%);transition:transform .25s ease;overflow-y:auto;padding:18px;visibility:hidden;pointer-events:none;box-shadow:-12px 0 28px rgba(27,74,110,.14)}.magazine-drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:14px;padding-bottom:14px;border-bottom:1px solid rgba(74,163,224,.16)}.drawer-brand{display:flex;align-items:center;gap:10px;color:#16324A;font-weight:700}.drawer-group{padding:16px 0;border-bottom:1px solid rgba(74,163,224,.16)}.drawer-group h2{font-size:13px;color:#6E8899;margin:0 0 8px}.drawer-group a{display:grid;gap:2px;padding:10px;border-radius:10px}.drawer-group a:hover,.drawer-group a:focus-visible{background:#EAF5FC;outline:none}.drawer-group strong{font-size:14px;color:#16324A}.drawer-group span{font-size:12px;color:#4E6A80}.site-footer{background:#1B4A6E;color:#E7F2FA;border-top:1px solid rgba(234,245,252,.35)}.footer-inner{padding:34px 0 82px}.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:22px}.footer-brand div{display:grid}.footer-brand strong{font-size:16px}.footer-brand span{font-size:12px}.footer-grid{grid-template-columns:repeat(4,minmax(0,1fr));padding-top:18px;border-top:1px solid rgba(234,245,252,.22)}.footer-grid section{display:grid;align-content:start;gap:6px}.footer-grid h2{font-size:13px;margin:0 0 3px;color:#fff}.footer-grid a{font-size:13px;color:#E7F2FA}.footer-grid a:hover,.footer-grid a:focus-visible{text-decoration:underline;outline:none}.footer-note,.footer-copy{font-size:13px;color:#E7F2FA}.footer-note{margin:24px 0 6px;max-width:900px}.footer-copy{margin:0}.mobile-bottom-nav{display:none}.index-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.anchor-list{display:flex;flex-wrap:wrap;gap:8px}.anchor-list a{min-height:40px;display:inline-flex;align-items:center;padding:0 12px;border:1px solid rgba(74,163,224,.16);background:#fff;border-radius:10px;color:#1B4A6E}.callout{padding:18px;background:#D7EAF6;border-radius:12px}.callout p{margin:0}.small{font-size:13px;color:#6E8899}.split{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(280px,.8fr);gap:18px;align-items:start}.stack{display:grid;gap:14px}.definition-list{display:grid;gap:12px}.definition-list div{padding:14px;background:#fff;border:1px solid rgba(74,163,224,.16);border-radius:10px}.definition-list dt{font-weight:700;color:#16324A}.definition-list dd{margin:4px 0 0}.table-wrap{overflow-x:auto}.plain-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid rgba(74,163,224,.16)}.plain-table th,.plain-table td{padding:12px;text-align:left;vertical-align:top;border-bottom:1px solid rgba(74,163,224,.16)}.plain-table th{color:#16324A;background:#EAF5FC}.plain-table tr:last-child td{border-bottom:0}@media (max-width:860px){.grid-3,.index-grid{grid-template-columns:1fr}.grid-2,.split{grid-template-columns:1fr}.number-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.shelf-row{grid-template-columns:1fr}.page-shell{padding-top:26px}}@media (max-width:640px){body{padding-bottom:calc(48px + env(safe-area-inset-bottom))}.section-tabs{display:none}.page-main{padding-top:82px}.masthead-inner{width:100%;padding:0 12px;grid-template-columns:minmax(44px,1fr) auto minmax(76px,1fr);gap:6px}.brand-link{min-width:44px}.drawer-button{padding:0 14px}.app-link{padding:0 12px}.topline-inner{width:100%;padding:0 12px}.page-shell{width:calc(100% - 32px);padding-bottom:36px}.hero-card{padding:20px}.cover-slot{height:260px}.media-slot--app{height:min(360px,88vw)}.number-grid{grid-template-columns:1fr}.footer-inner{width:calc(100% - 32px);padding-bottom:78px}.mobile-bottom-nav{position:fixed;z-index:65;left:0;right:0;bottom:0;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);display:grid;grid-template-columns:repeat(5,1fr);background:#fff;border-top:1px solid rgba(74,163,224,.16)}.mobile-bottom-nav a{display:flex;align-items:center;justify-content:center;font-size:12px;color:#1B4A6E;min-width:0}.mobile-bottom-nav a.is-active{background:#4AA3E0;color:#fff}.magazine-drawer{max-width:86vw;width:86vw}.search-panel{top:0;bottom:0;background:#1B4A6E;color:#fff;padding:18px;overflow-y:auto}.search-card{width:100%;margin-top:24px;background:#1B4A6E;color:#fff;border-color:rgba(234,245,252,.3);box-shadow:none}.search-card-head p,.search-card-head strong{color:#fff}.search-card .icon-button{background:transparent;color:#fff;border-color:rgba(234,245,252,.45)}.search-form{grid-template-columns:1fr}.search-form input{background:#fff}.search-form button{background:#fff;color:#1B4A6E}.preset-links a{background:#EAF5FC;color:#1B4A6E}.footer-grid{grid-template-columns:1fr 1fr}.button-row{display:grid;grid-template-columns:1fr}.button{width:100%}}@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}.spaced-top{margin-top:16px!important}.spaced-button{margin-top:14px}.media-slot--icon{height:96px}
.mini-faq{margin:0;padding-left:20px}.mini-faq li{margin:5px 0}.mini-faq strong{color:#16324A}.mini-faq span{color:#4E6A80}
.media-image--icon{width:48px;height:48px;object-fit:contain;object-position:center}