*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#eef5fb;color:#1d3448;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.8;overflow-x:hidden}img{max-width:100%}a{color:#0878bd;text-decoration:none}a:hover{text-decoration:none}button,a{touch-action:manipulation}.site-header{position:sticky;top:0;z-index:9000;background:#fff;border-bottom:1px solid #d9e7f3}.header-inner{max-width:1180px;min-height:70px;margin:auto;padding:0 18px;display:flex;align-items:center;gap:16px}.site-logo{display:flex;align-items:center;min-width:138px}.site-logo img{display:block;height:36px;width:auto;max-width:148px;object-fit:contain}.logo-text{font-size:20px;font-weight:800;color:#0b4f78;letter-spacing:.5px}.nav-core{display:flex;align-items:center;gap:3px;flex:1;justify-content:center;white-space:nowrap}.nav-core a{padding:9px 11px;color:#294b62;font-weight:700;border-radius:9px}.nav-core a.is-current,.nav-core a:hover{color:#0878bd;background:#edf7fd}.main-btn{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 18px;border-radius:10px;background:linear-gradient(135deg,#0f91d0,#0b6fae);color:#fff!important;font-weight:800;box-shadow:0 8px 20px rgba(11,111,174,.18)}.menu-btn{display:none;border:0;background:transparent;color:#0878bd;font-weight:800;min-height:40px}.channel-bar{background:#f8fbfe;border-bottom:1px solid #dfeaf3}.channel-inner{max-width:1180px;margin:auto;padding:0 18px;display:flex;gap:22px;overflow-x:auto;white-space:nowrap}.channel-inner a{padding:12px 0 10px;color:#60798b;border-bottom:2px solid transparent;font-size:14px}.channel-inner a.is-current,.channel-inner a:hover{color:#0878bd;border-bottom-color:#0878bd}.site-main{max-width:1180px;margin:auto;padding:30px 76px 74px 18px}.crumb{font-size:14px;color:#6c8394;margin-bottom:16px}.crumb a{color:#0878bd}.hero{display:grid;grid-template-columns:minmax(0,44%) minmax(0,56%);gap:24px;background:#fff;border:1px solid #dfeaf3;border-radius:18px;padding:26px;box-shadow:0 14px 38px rgba(44,85,113,.08)}.hero h1{font-size:clamp(31px,4vw,46px);line-height:1.22;margin:0 0 16px;color:#173b53}.hero p{font-size:17px;color:#4e687a;margin:0 0 20px}.eyebrow{display:inline-block;color:#0878bd;font-size:13px;font-weight:800;letter-spacing:.08em;margin-bottom:10px}.media{position:relative;width:100%;overflow:hidden;border-radius:14px;background:#e8f3fa;aspect-ratio:16/9;z-index:1}.media>img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:center;display:block}.media-placeholder{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:#7890a2;font-size:14px;padding:20px;text-align:center}.hero-media{min-height:280px}.section{margin-top:30px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:14px}.section-head h2{margin:0;color:#173b53;font-size:26px}.section-head p{margin:0;color:#6d8495;font-size:14px}.static-gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.static-gallery .media{height:145px;aspect-ratio:auto}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.feature-card,.brand-card,.info-strip,.article-shell,.qa-item{background:#fff;border:1px solid #dfeaf3;border-radius:15px;box-shadow:0 10px 28px rgba(44,85,113,.06)}.feature-card{padding:20px}.feature-card h3{margin:0 0 8px;color:#173b53;font-size:20px}.feature-card p{margin:0 0 14px;color:#587184}.feature-card a{font-weight:800}.brand-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.brand-card{padding:15px 17px;display:flex;justify-content:space-between;gap:16px;align-items:center}.brand-card strong{color:#173b53}.brand-card span{color:#687f90;font-size:14px;text-align:right}.info-strip{padding:18px 20px;color:#466275;background:#f9fcfe}.split{display:grid;grid-template-columns:1.05fr .95fr;gap:20px;align-items:center;background:#fff;border:1px solid #dfeaf3;border-radius:16px;padding:22px}.split h2{color:#173b53;margin-top:0}.split p{color:#526d7e}.article-shell{max-width:840px;margin:0 auto;padding:28px 30px}.article-shell h1{font-size:34px;line-height:1.25;color:#173b53;margin:0 0 14px}.article-shell h2{font-size:23px;color:#16435e;margin:30px 0 10px}.article-shell p{font-size:17px;color:#385669;margin:0 0 16px}.article-shell ul{padding-left:22px}.article-media{margin:20px 0;height:230px;aspect-ratio:auto}.related-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.related-links a{background:#edf7fd;color:#0878bd;padding:8px 12px;border-radius:9px;font-weight:700}.mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:18px 0}.mini-grid a,.mini-grid div{background:#f6fbfe;border:1px solid #dfeaf3;border-radius:12px;padding:14px}.qa-list{display:grid;gap:12px}.qa-item{padding:17px 18px}.qa-item h2{margin:0 0 7px;font-size:19px}.qa-item p{margin:0}.site-footer{background:#123247;color:#dcebf4;margin-top:20px}.footer-inner{max-width:1180px;margin:auto;padding:34px 18px 24px;display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:28px}.footer-inner h2{font-size:16px;color:#fff;margin:0 0 10px}.footer-inner a{display:block;color:#dcebf4;margin:5px 0}.footer-brand p{max-width:440px;color:#b9ccda}.footer-logo img{height:34px;width:auto;max-width:145px;object-fit:contain}.footer-logo-text{color:#fff}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:14px 18px;text-align:center;color:#b9ccda;font-size:13px}.float-tools{position:fixed;right:14px;top:34%;z-index:8000;width:96px;background:#fff;border:1px solid #dfeaf3;border-radius:14px;padding:9px;box-shadow:0 12px 30px rgba(44,85,113,.12);display:grid;gap:8px}.float-tools a,.float-tools button{min-height:38px;border:0;border-radius:9px;background:#f1f8fc;color:#24516d;font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center}.float-tools .main-btn{min-height:40px;padding:0 8px;color:#fff}.mobile-bottom{display:none}.mobile-drawer,.drawer-mask{display:none}.drawer-open{overflow:hidden}.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border-bottom:1px solid #dfeaf3}.drawer-logo img{height:31px;width:auto;max-width:130px;object-fit:contain}.drawer-close{min-height:40px;border:1px solid #dfeaf3;background:#f7fbfe;color:#0878bd;border-radius:9px;padding:0 12px}.drawer-groups{padding:10px 16px 30px}.drawer-groups section{padding:12px 0;border-bottom:1px solid #e3edf4}.drawer-groups h2{font-size:14px;color:#6b8294;margin:0 0 8px}.drawer-groups a{display:block;min-height:40px;padding:7px 0;color:#294b62}.menu-btn,.drawer-close,.back-top{cursor:pointer}
@media(max-width:980px){.site-main{padding:22px 14px 76px}.nav-core,.channel-bar,.float-tools{display:none}.header-inner{min-height:64px;padding:0 12px;justify-content:space-between}.menu-btn{display:inline-flex;align-items:center;justify-content:center}.site-logo{min-width:0}.site-logo img{height:31px;max-width:122px}.header-cta{min-width:72px;padding:0 11px;font-size:13px}.hero{grid-template-columns:1fr;padding:18px}.hero-media{min-height:180px}.static-gallery{grid-template-columns:repeat(2,1fr)}.static-gallery .media{height:122px}.feature-grid,.brand-list,.mini-grid{grid-template-columns:1fr}.brand-card{display:block}.brand-card span{display:block;text-align:left;margin-top:4px}.split{grid-template-columns:1fr;padding:18px}.article-shell{padding:20px 16px}.article-shell h1{font-size:29px}.article-shell p{font-size:16px}.article-media{height:185px}.footer-inner{grid-template-columns:1fr}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:8500;background:#fff;border-top:1px solid #d9e7f3;display:grid;grid-template-columns:repeat(4,1fr)}.mobile-bottom a{min-height:54px;display:flex;align-items:center;justify-content:center;color:#294b62;font-weight:800;font-size:14px}.footer-bottom{padding-bottom:74px}.mobile-drawer{display:block;position:fixed;inset:0 auto 0 0;width:min(84vw,320px);background:#fff;z-index:12000;transform:translateX(-105%);transition:transform .2s ease;box-shadow:18px 0 40px rgba(16,43,70,.16);overflow-y:auto}.mobile-drawer.is-open{transform:translateX(0)}.drawer-mask{display:none;position:fixed;inset:0;background:rgba(16,43,70,.38);z-index:11000;opacity:0;pointer-events:none;transition:opacity .18s ease}.drawer-mask.is-visible{display:block;opacity:1;pointer-events:auto}.media{z-index:1}}
@media(max-width:430px){.hero h1{font-size:29px}.site-logo img{max-width:110px}.static-gallery .media{height:108px}.header-inner{gap:8px}}
