*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#f6fbff;color:#31485f;font:16px/1.8 Arial,"PingFang SC","Microsoft YaHei",sans-serif;overflow-x:hidden}a{color:#1478ad;text-decoration:none}a:hover{color:#6b4faf}a:focus-visible,button:focus-visible{outline:3px solid #6b4faf;outline-offset:3px}button{font:inherit;cursor:pointer}img{max-width:100%}.container{width:min(100% - 48px,1160px);margin-inline:auto}.skip-link{position:absolute;left:8px;top:-60px;background:white;padding:6px 14px;z-index:20000}.skip-link:focus{top:8px}.site-header{position:sticky;top:0;z-index:5000;background:#fff;box-shadow:0 3px 16px rgba(24,80,140,.07)}.topbar{height:70px;display:flex;align-items:center;gap:22px}.brand{display:flex;align-items:center;flex:0 0 auto;min-width:150px;color:#1c3552}.brand .media-logo{width:auto;max-width:176px;height:38px;background:transparent}.brand .media-logo img{height:100%;width:auto;object-fit:contain}.brand .media-placeholder{display:none}.brand-fallback{font-size:24px;letter-spacing:1px;font-weight:900;color:#244c78}.brand-fallback span{color:#6b4faf}.brand:has(img) .brand-fallback{display:none}.desktop-nav{display:flex;gap:clamp(10px,1.5vw,22px);align-items:stretch;justify-content:center;margin-left:auto;height:100%}.nav-item{font-size:14px;font-weight:700;color:#244c78;display:flex;align-items:center;white-space:nowrap;border-bottom:2px solid transparent;padding:2px 0 0}.nav-item.is-current,.nav-item:hover{color:#2aa9e0;border-bottom-color:#2aa9e0}.main-btn{display:inline-flex;align-items:center;justify-content:center;min-width:82px;height:40px;padding:0 18px;border-radius:999px;background:linear-gradient(135deg,#53c2f2 0%,#2aa9e0 55%,#6b4faf 100%);color:#fff;font-weight:700;white-space:nowrap;flex:0 0 auto;font-size:14px}.main-btn:hover{color:#fff;filter:brightness(.96)}.channel-strip{background:#eff8ff;border-top:1px solid #edf6fc}.strip-inner{display:flex;align-items:center;gap:30px;min-height:44px;overflow-x:auto;scrollbar-width:thin;white-space:nowrap}.channel-item{font-size:13px;color:#58718e;flex-shrink:0}.channel-item.is-current,.channel-item:hover{color:#2aa9e0;font-weight:700}.menu-toggle{display:none;border:0;background:transparent;padding:7px;flex-direction:column;gap:4px}.menu-toggle span{display:block;width:21px;height:2px;background:#244c78}.drawer-mask,.mobile-drawer,.mobile-bottom{display:none}.site-main{min-height:50vh;padding-bottom:48px}.hero-section{padding-top:30px}.hero-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:24px;align-items:center}.hero-copy{padding:14px 8px 16px 0}.eyebrow{font-size:13px;font-weight:800;color:#6b4faf;letter-spacing:.12em}.hero-copy h1{font-size:clamp(25px,3vw,38px);line-height:1.35;margin:13px 0 16px;color:#1c3552}.hero-copy p{line-height:1.9;color:#465e77}.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:23px}.outline-btn{border:1px solid #b7dff6;color:#244c78;background:#fff;border-radius:999px;padding:6px 20px;font-weight:700}.media{display:flex;align-items:center;justify-content:center;width:100%;overflow:hidden;border-radius:12px;background:#eff8ff;position:relative}.media img{display:block;width:auto;height:auto;max-width:100%;max-height:100%;object-fit:contain;object-position:center}.media-banner{aspect-ratio:16/7}.media-wide{aspect-ratio:16/9}.media-square{aspect-ratio:1/1}.media-device{aspect-ratio:9/16;max-width:270px;margin:auto}.media-logo{aspect-ratio:auto}.media-placeholder{background:linear-gradient(135deg,#e8f7ff,#d8effe 58%,#efe9fa);border:1px solid #d3eaf9}.placeholder-mark{font-size:60px;font-weight:300;color:#a3d4ef;line-height:1}.section{margin-top:42px}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:20px}.section-heading h2,.page-section h2{font-size:24px;line-height:1.45;color:#1c3552;margin:0}.section-heading p{margin:5px 0 0;color:#6b8299;font-size:14px}.section-heading a{font-size:14px;font-weight:700}.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.card-grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.content-card{background:#fff;border:1px solid rgba(42,169,224,.16);border-radius:14px;padding:23px;min-width:0;box-shadow:0 8px 20px rgba(29,86,132,.035)}.content-card h3{font-size:19px;line-height:1.5;color:#1c3552;margin:0 0 10px}.content-card p{font-size:15px;line-height:1.8;margin:0 0 12px}.content-card a.more,.related a{font-weight:700;font-size:14px}.content-card .media{margin-bottom:18px}.feature-grid{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:28px;background:white;border-radius:14px;border:1px solid rgba(42,169,224,.16);padding:22px}.feature-grid h2{font-size:24px;color:#1c3552}.feature-grid p{margin:12px 0 18px}.note{background:#eff8ff;border-left:4px solid #2aa9e0;padding:18px 22px;border-radius:0 12px 12px 0;color:#244c78}.notice-line{font-size:14px}.number-list{padding:0;margin:0;list-style:none;counter-reset:rows;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.number-list li{counter-increment:rows;background:white;border:1px solid #deedf7;border-radius:12px;padding:16px 18px 16px 54px;position:relative}.number-list li:before{content:counter(rows,decimal-leading-zero);position:absolute;left:17px;top:16px;color:#2aa9e0;font-weight:800}.number-list strong{color:#1c3552}.number-list p{font-size:14px;margin:5px 0 0}.page-head{padding:36px 0 24px}.breadcrumb{font-size:13px;color:#6b8299}.breadcrumb a{color:#58718e}.page-head h1{color:#1c3552;line-height:1.38;font-size:32px;margin:13px 0}.page-head .lead{max-width:850px;font-size:17px;line-height:1.85;margin:0}.article-layout{display:grid;grid-template-columns:minmax(0,800px) minmax(225px,1fr);gap:30px;align-items:start}.article-main{min-width:0}.article-main>.media{margin-bottom:26px}.page-section{padding:25px 28px;margin-bottom:20px;background:#fff;border:1px solid #deedf7;border-radius:14px}.page-section h2{margin-bottom:15px}.page-section p{margin:0 0 15px}.page-section p:last-child{margin-bottom:0}.sidebar-panel{position:sticky;top:142px;background:#fff;border:1px solid #deedf7;border-radius:14px;padding:21px}.sidebar-panel h2{font-size:18px;margin:0 0 12px;color:#1c3552}.sidebar-panel a{display:block;padding:9px 0;border-bottom:1px solid #edf5fa;font-size:14px}.sidebar-panel a:last-child{border:0}.related{background:#eff8ff;border-radius:14px;padding:23px;margin-top:22px}.related h2{margin:0 0 14px;color:#1c3552;font-size:20px}.related-links{display:flex;gap:12px;flex-wrap:wrap}.related a{display:inline-flex;background:white;border:1px solid #d7e9f5;border-radius:100px;padding:6px 15px}.qa-list{display:grid;gap:13px}.qa-item{background:white;border:1px solid #deedf7;border-radius:12px;padding:18px 23px}.qa-item h2{font-size:18px;line-height:1.5;margin:0 0 6px;color:#1c3552}.qa-item p{margin:0}.gallery-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.gallery-item{background:#fff;border:1px solid #deedf7;border-radius:14px;padding:14px}.gallery-item h2{font-size:17px;color:#1c3552;margin:12px 6px 2px}.gallery-item p{margin:0 6px 8px;font-size:14px}.gallery-item .media{aspect-ratio:16/9}.gallery-item .media-device{aspect-ratio:9/16;max-height:340px}.site-footer{background:#16324f;color:#e8f5ff;padding:48px 0 24px}.footer-grid{display:grid;grid-template-columns:2fr repeat(3,1fr);gap:32px}.footer-grid h2{font-size:16px;color:#fff;margin:0 0 12px}.footer-grid a:not(.footer-brand){color:#d5ebfb;display:block;font-size:14px;margin-bottom:7px}.footer-grid a:hover{color:#fff}.footer-grid p{font-size:14px;line-height:1.9;margin-top:12px}.footer-brand{display:flex;align-items:center;gap:10px;color:white}.footer-brand .media-logo{width:90px;max-height:36px;background:transparent}.footer-brand .media-placeholder{display:none}.footer-bottom{border-top:1px solid #36526d;margin-top:28px;padding-top:20px;display:flex;justify-content:space-between;gap:20px;font-size:12px;color:#d2e3f0}.back-top{display:none;position:fixed;right:22px;bottom:25px;background:#2aa9e0;color:#fff;border:0;border-radius:50%;width:40px;height:40px;z-index:2000;box-shadow:0 7px 18px #2aa9e04f}.back-top.visible{display:block}
@media(max-width:1100px){.desktop-nav{gap:11px}.brand{min-width:118px}.brand-fallback{font-size:20px}.topbar{gap:12px}}
@media(max-width:980px){.container{width:calc(100% - 40px)}.topbar{height:58px;justify-content:space-between}.menu-toggle{display:flex}.brand{position:absolute;left:50%;transform:translateX(-50%);min-width:0;max-width:45%}.brand .media-logo{height:29px;max-width:150px}.brand-fallback{font-size:20px}.desktop-nav{display:none}.topbar .main-btn{margin-left:auto;height:36px;min-width:66px;padding:0 12px}.channel-strip .container{width:calc(100% - 32px)}.strip-inner{gap:23px}.mobile-drawer{display:block;position:fixed;inset:0 auto 0 0;width:min(84vw,320px);height:100vh;height:100dvh;overflow-y:auto;background:#fff;z-index:12000;transform:translateX(-105%);visibility:hidden;pointer-events:none;transition:transform .2s ease,visibility .2s}.mobile-drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-mask{display:block;position:fixed;inset:0;background:rgba(28,73,114,.36);z-index:11000;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .2s ease,visibility .2s}.drawer-mask.is-visible{opacity:1;visibility:visible;pointer-events:auto}body.drawer-open{overflow:hidden}.drawer-head{padding:18px 20px;background:#16324f;color:#fff;display:flex;align-items:center;justify-content:space-between}.drawer-head small{font-weight:400}.drawer-close{background:transparent;border:0;font-size:30px;color:#fff;line-height:1}.drawer-group{padding:17px 20px 4px}.drawer-group h2{font-size:14px;color:#6b4faf;margin:0 0 8px}.drawer-links{display:grid;grid-template-columns:1fr 1fr;gap:4px}.drawer-links a{padding:7px 2px;font-size:14px;color:#244c78}.drawer-links a.is-current{color:#2aa9e0;font-weight:700}.mobile-bottom{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:4000;height:60px;background:#fff;border-top:1px solid #dcecf6;justify-content:space-around;align-items:center;padding-bottom:env(safe-area-inset-bottom)}.mobile-bottom a{display:flex;flex-direction:column;align-items:center;justify-content:center;min-width:60px;line-height:1.25;font-size:12px;color:#58718e}.mobile-bottom a span{font-size:20px}.mobile-bottom a.is-current{color:#2aa9e0;font-weight:700}.site-main{padding-bottom:88px}.back-top{bottom:75px}.article-layout{grid-template-columns:minmax(0,1fr)}.sidebar-panel{position:static}.hero-grid{grid-template-columns:1fr}.hero-copy{padding:2px 0}.hero-grid .media{max-height:350px}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:600px){body{font-size:15px}.container{width:calc(100% - 32px)}.hero-section{padding-top:19px}.hero-copy h1{font-size:27px}.section{margin-top:28px}.section-heading h2,.page-section h2{font-size:21px}.section-heading{align-items:start}.card-grid,.card-grid.two,.gallery-grid,.number-list,.feature-grid{grid-template-columns:1fr}.content-card{padding:19px}.page-head{padding-top:25px}.page-head h1{font-size:26px}.page-head .lead{font-size:15px}.page-section{padding:21px 18px}.footer-grid{gap:25px 16px}.footer-grid .footer-about{grid-column:1/-1}.footer-bottom{flex-direction:column}.gallery-item .media{max-height:260px}.strip-inner{gap:20px}.hero-actions{margin-top:15px}.hero-copy p{margin:10px 0}.feature-grid{gap:14px}}
@media(max-width:360px){.brand-fallback{font-size:18px}.topbar .main-btn{font-size:13px;min-width:61px}.menu-toggle{padding:3px}.brand .media-logo{max-width:105px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}