*{box-sizing:border-box}html{scroll-behavior:smooth;overflow-x:hidden}body{margin:0;background:#F5FAFE;color:#2A4156;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden;padding-top:122px}body.locked{overflow:hidden}a{color:inherit;text-decoration:none}button{font:inherit}img{max-width:100%;display:block}.skip-link{position:fixed;left:12px;top:-60px;z-index:120;background:#fff;color:#16324A;padding:8px 12px;border-radius:8px}.skip-link:focus{top:8px}.topline{position:fixed;z-index:90;top:0;left:0;right:0;height:22px;background:#1B4A6E;color:#fff;font-size:12px}.topline-inner,.masthead-inner,.footer-inner,.site-main,.section-tabs{max-width:1120px;margin:0 auto}.topline-inner{height:22px;padding:0 16px;display:flex;align-items:center;justify-content:space-between}.text-btn{border:0;background:transparent;color:#fff;min-height:22px;padding:0 4px;cursor:pointer}.masthead{position:fixed;z-index:89;top:22px;left:0;right:0;height:60px;background:#fff;border-bottom:1px solid rgba(74,163,224,.16)}.masthead-inner{height:60px;padding:0 16px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center}.brand-link{justify-self:start;display:inline-flex;align-items:center;min-height:44px;min-width:64px}.logo-slot,.footer-logo-slot,.drawer-logo-slot{display:flex;align-items:center;min-width:44px;min-height:28px}.brand-logo,.footer-logo,.drawer-logo{height:28px;width:auto;object-fit:contain;object-position:center}.brand-fallback{font-size:16px;font-weight:800;color:#16324A}.logo-slot:has(img)+.brand-fallback{display:none}.drawer-button,.app-link{min-height:44px;display:inline-flex;align-items:center;justify-content:center}.drawer-button{border:1px solid rgba(74,163,224,.42);background:#fff;color:#1B4A6E;border-radius:10px;padding:0 18px;cursor:pointer}.app-link{justify-self:end;color:#1B4A6E;font-weight:700;padding:0 6px}.section-tabs{position:fixed;z-index:88;top:82px;left:0;right:0;height:40px;max-width:none;background:#EAF5FC;border-bottom:1px solid rgba(74,163,224,.16);display:flex;align-items:center;justify-content:center;gap:8px;padding:0 16px;font-size:13px}.section-tabs a{height:30px;min-width:72px;padding:0 16px;display:inline-flex;align-items:center;justify-content:center;border-radius:8px;color:#1B4A6E}.section-tabs a.is-active{background:#4AA3E0;color:#fff}.site-main{padding:34px 16px 64px}.page-head{margin-bottom:24px}.eyebrow{font-size:12px;color:#4E6A80;letter-spacing:.08em;text-transform:uppercase}.page-head h1,.hero-copy h1{font-size:24px;line-height:1.3;color:#16324A;margin:8px 0 12px}.page-head p,.hero-copy p{max-width:820px;margin:0;color:#4E6A80}.section{margin-top:30px}.section h2{font-size:20px;line-height:1.35;color:#16324A;margin:0 0 14px}.section h3{font-size:16px;color:#16324A;margin:0 0 8px}.section p{margin:0 0 12px}.hero-card,.content-card,.feature-card,.note-card,.term-card,.faq-item,.method-card,.timeline-item{background:#fff;border:1px solid rgba(74,163,224,.16);border-radius:12px;box-shadow:0 12px 28px rgba(27,74,110,.08)}.hero-card{overflow:hidden}.image-slot{width:100%;background:#EAF5FC;display:flex;align-items:center;justify-content:center;border-bottom:1px solid rgba(74,163,224,.16)}.image-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.banner-slot{height:260px}.medium-slot{height:200px}.small-slot{height:180px}.app-slot{height:340px}.hero-copy{padding:24px}.button-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.btn{height:42px;padding:0 18px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;white-space:nowrap}.btn-primary{background:linear-gradient(135deg,#6BB8EC 0%,#4AA3E0 55%,#1B4A6E 100%);color:#fff}.btn-secondary{background:#fff;border:1px solid rgba(74,163,224,.42);color:#1B4A6E}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.feature-card{overflow:hidden}.feature-card .copy{padding:18px}.feature-card .copy p{margin:0 0 12px;color:#4E6A80}.text-link{color:#1B4A6E;font-weight:700;display:inline-flex;min-height:44px;align-items:center}.number-list,.rack-list,.index-list,.compact-list{list-style:none;padding:0;margin:0;display:grid;gap:10px}.number-list li,.rack-list li,.index-list li{background:#fff;border:1px solid rgba(74,163,224,.16);border-radius:10px;padding:15px}.num{display:inline-flex;min-width:38px;color:#4AA3E0;font-weight:800}.rack-list a,.index-list a{display:flex;gap:12px;align-items:flex-start;min-height:44px}.rack-list strong,.index-list strong{color:#16324A}.rack-list span,.index-list span{color:#4E6A80}.split-media{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(260px,.75fr);gap:18px;align-items:stretch}.copy-panel{background:#fff;border:1px solid rgba(74,163,224,.16);border-radius:12px;padding:20px}.timeline{position:relative;margin-left:8px;padding-left:24px;border-left:2px solid #D7EAF6;display:grid;gap:14px}.timeline-item{padding:16px;position:relative}.timeline-item:before{content:"";position:absolute;left:-32px;top:22px;width:14px;height:14px;border-radius:50%;background:#4AA3E0;border:3px solid #EAF5FC}.status{display:inline-flex;min-height:28px;align-items:center;padding:0 10px;border-radius:999px;background:#EAF5FC;color:#1B4A6E;font-size:12px;font-weight:700}.notes-grid,.methods-grid,.terms-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.note-card,.method-card,.term-card{padding:18px}.lead-box{background:#EAF5FC;border:1px solid rgba(74,163,224,.16);border-radius:12px;padding:18px;color:#16324A}.app-layout{display:grid;grid-template-columns:minmax(240px,.7fr) minmax(0,1.3fr);gap:18px}.icon-badge{width:48px;height:48px;border-radius:12px;background:#EAF5FC;display:flex;align-items:center;justify-content:center;overflow:hidden;border:1px solid rgba(74,163,224,.16);margin-bottom:12px}.icon-badge img{width:48px;height:48px;object-fit:contain}.faq-list{display:grid;gap:12px}.faq-item{padding:18px}.faq-item h2{font-size:16px;margin:0 0 8px;color:#16324A}.contact-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.plain-table{width:100%;border-collapse:collapse;background:#fff;border-radius:12px;overflow:hidden;border:1px solid rgba(74,163,224,.16)}.plain-table th,.plain-table td{text-align:left;padding:13px;border-bottom:1px solid rgba(74,163,224,.12);vertical-align:top}.plain-table th{color:#16324A;background:#EAF5FC}.site-footer{background:#1B4A6E;color:#E7F2FA;border-top:1px solid rgba(234,245,252,.35);font-size:13px}.footer-inner{padding:28px 16px 80px}.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:22px}.footer-brand div{display:flex;flex-direction:column}.footer-brand strong{font-size:16px}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}.footer-grid h2{font-size:13px;color:#fff;margin:0 0 8px}.footer-grid a{display:block;min-height:34px;color:#E7F2FA}.footer-note{max-width:900px;margin:22px 0 8px;color:#D7EAF6}.copyright{margin:0;color:#D7EAF6}.overlay{position:fixed;z-index:98;inset:0;background:rgba(22,50,74,.32);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}.issue-drawer{position:fixed;z-index:100;top:0;right:0;width:400px;max-width:86vw;height:100dvh;background:#fff;color:#2A4156;transform:translateX(105%);visibility:hidden;pointer-events:none;transition:transform .24s ease,visibility .24s}.issue-drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{height:64px;padding:0 16px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid rgba(74,163,224,.16)}.drawer-brand{display:flex;align-items:center;gap:8px;color:#16324A}.icon-close{min-height:44px;border:1px solid rgba(74,163,224,.42);background:#fff;color:#1B4A6E;border-radius:10px;padding:0 14px;cursor:pointer}.drawer-scroll{height:calc(100dvh - 64px);overflow-y:auto;padding:14px 16px 30px}.drawer-scroll section{margin-bottom:18px}.drawer-scroll h2{font-size:13px;color:#4E6A80;margin:0 0 8px}.drawer-scroll a{display:block;padding:10px 0;border-bottom:1px solid rgba(74,163,224,.12);min-height:54px}.drawer-scroll b{display:block;color:#16324A}.drawer-scroll span{display:block;color:#6E8899;font-size:13px}.search-panel{position:fixed;z-index:99;top:82px;left:0;right:0;visibility:hidden;pointer-events:none;opacity:0;transition:.2s}.search-panel.is-open{visibility:visible;pointer-events:auto;opacity:1}.search-card{max-width:760px;margin:12px auto;background:#fff;border:1px solid rgba(74,163,224,.16);box-shadow:0 12px 28px rgba(27,74,110,.12);border-radius:12px;padding:18px}.search-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.search-head strong{color:#16324A;font-size:18px}.search-head p{margin:4px 0 0;color:#4E6A80}.search-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}.search-links a{min-height:44px;display:inline-flex;align-items:center;padding:0 14px;background:#EAF5FC;color:#1B4A6E;border-radius:10px}.mobile-bar{display:none}.btn:hover,.drawer-button:hover,.app-link:hover,.text-link:hover,.footer-grid a:hover,.drawer-scroll a:hover,.search-links a:hover{filter:brightness(.97)}a:focus-visible,button:focus-visible{outline:3px solid rgba(74,163,224,.42);outline-offset:2px}@media(max-width:800px){body{padding-top:82px;padding-bottom:calc(56px + env(safe-area-inset-bottom))}.section-tabs{display:none}.masthead-inner{grid-template-columns:minmax(62px,1fr) auto minmax(62px,1fr);gap:6px}.brand-link{min-width:44px}.brand-fallback{font-size:16px}.drawer-button{padding:0 14px}.app-link{font-size:13px}.site-main{padding:24px 16px 48px}.grid-3,.grid-2,.notes-grid,.methods-grid,.terms-grid,.contact-cards,.footer-grid{grid-template-columns:1fr}.split-media,.app-layout{grid-template-columns:1fr}.app-slot{height:320px}.search-panel{top:0;bottom:0;background:#1B4A6E}.search-card{margin:0;max-width:none;height:100dvh;border:0;border-radius:0;background:#1B4A6E;color:#fff;padding:calc(22px + env(safe-area-inset-top)) 16px 30px}.search-head strong,.search-head p{color:#fff}.search-head .icon-close{border-color:rgba(255,255,255,.45);background:transparent;color:#fff}.search-links a{background:#fff;color:#1B4A6E}.mobile-bar{position:fixed;z-index:87;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-bar a{display:flex;align-items:center;justify-content:center;min-height:48px;font-size:12px;color:#1B4A6E}.mobile-bar a.is-active{background:#4AA3E0;color:#fff}.footer-inner{padding-bottom:76px}.banner-slot{height:220px}.small-slot{height:160px}.medium-slot{height:180px}.hero-copy{padding:18px}}@media(max-width:420px){.topline-inner,.masthead-inner,.site-main,.footer-inner{padding-left:16px;padding-right:16px}.button-row{display:grid;grid-template-columns:1fr}.btn{width:100%}.banner-slot{height:190px}.app-slot{height:280px}.plain-table{font-size:13px}.plain-table th,.plain-table td{padding:10px}}