*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#151A23;color:#E8ECF5;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.8}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}img{display:block;max-width:100%}.wrap{max-width:1180px;margin:auto;padding-left:24px;padding-right:24px}.topbar{position:sticky;top:0;z-index:900;background:#151A23;border-bottom:1px solid #303749}.nav-wrap{height:70px;max-width:1180px;margin:auto;padding:0 24px;display:flex;align-items:center;gap:30px}.brand{display:flex;align-items:center;gap:10px;white-space:nowrap;font-weight:800;font-size:20px}.brand small{display:block;font-size:9px;letter-spacing:2px;color:#B8C0D3;line-height:1}.brand .media-logo{width:43px;height:38px;flex:none}.brand .media-placeholder{min-height:36px}.nav-desktop{display:flex;align-items:center;gap:22px;margin-left:auto}.nav-desktop a{height:70px;display:flex;align-items:center;white-space:nowrap;font-size:14px;border-bottom:2px solid transparent}.nav-desktop a:hover,.nav-desktop a.active{color:#F1DCA3;border-bottom-color:#F1DCA3}.action{background:#F1DCA3;color:#151A23;border-radius:999px;padding:6px 27px;font-weight:800;white-space:nowrap}.action:hover{background:#E3C98F}.subnav{background:#202738}.subnav-inner{max-width:1180px;margin:auto;padding:0 24px;display:flex;align-items:center;gap:32px;overflow-x:auto;scrollbar-width:thin;white-space:nowrap;height:44px}.subnav a{font-size:13px;color:#B8C0D3;flex:none}.subnav a:hover{color:#F1DCA3}.site-main{min-height:60vh}.eyebrow{display:inline-block;color:#F1DCA3;letter-spacing:2px;text-transform:uppercase;font-size:12px;font-weight:700}.hero{display:grid;grid-template-columns:1.17fr .83fr;gap:30px;align-items:center;margin-top:38px;background:#1B2130;border:1px solid #303849;border-radius:16px;padding:32px}.hero h1{font-size:clamp(27px,3vw,39px);line-height:1.35;margin:10px 0 16px}.hero p{font-size:16px;line-height:1.85;color:#B8C0D3}.hero-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}.text-btn{border:1px solid #576070;border-radius:30px;padding:5px 15px;color:#F1DCA3;font-size:14px}.text-btn:hover{border-color:#F1DCA3}.media{display:flex;align-items:center;justify-content:center;width:100%;min-width:0;max-width:100%;border-radius:12px;background:#202738;overflow:hidden}.media img{display:block;width:100%;height:100%;object-fit:contain;object-position:center}.media-natural img{width:100%;height:auto;max-height:280px;object-fit:contain}.media-banner{aspect-ratio:16/8}.media-device{aspect-ratio:9/15;max-width:230px;margin:auto}.media-logo{aspect-ratio:16/9}.media-placeholder{background:linear-gradient(130deg,#202738,#252D40);width:100%;height:100%;min-height:120px}.content-section{margin-top:48px;margin-bottom:48px}.section-head{margin-bottom:19px}.section-head h2{font-size:25px;line-height:1.4;margin:3px 0;color:#E8ECF5}.section-intro{color:#B8C0D3;max-width:810px;margin:0 0 22px}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.link-card,.article-card,.image-card{display:block;min-width:0;background:#1B2130;border:1px solid #303849;border-radius:13px;padding:20px}.link-card:hover,.image-card:hover{border-color:#847552;background:#252D40}.link-card strong{display:block;font-size:18px;margin-bottom:6px;color:#E8ECF5}.link-card span{display:block;color:#B8C0D3;font-size:14px;line-height:1.7}.link-card em{display:block;color:#F1DCA3;font-style:normal;font-size:13px;margin-top:15px}.article-card h3{font-size:18px;margin:0 0 8px}.article-card p{font-size:15px;color:#B8C0D3;margin:0}.split{display:grid;grid-template-columns:1fr 1fr;gap:20px}.prose{max-width:820px}.prose p{margin:0 0 16px;color:#D5DBEA}.prose h2{font-size:25px;margin:32px 0 12px}.reading-panel{background:#1B2130;border:1px solid #303849;border-radius:13px;padding:24px}.reading-panel p{color:#D5DBEA}.reading-panel h2{margin-top:0;font-size:23px}.banner-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.image-card .media{margin-bottom:12px}.image-card strong{display:block;color:#F1DCA3;font-size:16px}.image-card p{font-size:14px;color:#B8C0D3;margin:6px 0 0}.number-list{counter-reset:num;display:grid;gap:10px}.number-list a{display:block;padding:16px 20px;background:#1B2130;border-radius:10px;border:1px solid #303849}.number-list a::before{counter-increment:num;content:counter(num,decimal-leading-zero);color:#F1DCA3;font-weight:bold;margin-right:18px}.number-list a span{color:#B8C0D3;display:block;margin-left:42px;font-size:14px}.page-heading{margin-top:42px;margin-bottom:26px}.page-heading h1{font-size:34px;margin:6px 0}.page-heading p{max-width:820px;color:#B8C0D3;margin:0}.chapter{padding:22px 0;border-bottom:1px solid #303849}.chapter h2{font-size:24px;margin:0 0 10px}.chapter p{color:#D5DBEA;max-width:820px;margin:0 0 14px}.chapter p:last-child{margin-bottom:0}.related{margin-bottom:50px}.note{background:#202738;border-left:3px solid #F1DCA3;padding:14px 19px;color:#D5DBEA;margin:26px 0;border-radius:0 8px 8px 0}.site-footer{background:#0E121A;margin-top:56px;color:#D5DBEA}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:30px;padding-top:45px;padding-bottom:38px}.footer-grid h3{font-size:16px;color:#F1DCA3;margin:0 0 13px}.footer-grid p{font-size:13px;color:#B8C0D3}.footer-brand{font-weight:bold;color:#F1DCA3}.footer-link{display:block;font-size:13px;margin:6px 0;color:#D5DBEA}.footer-bottom{border-top:1px solid #2b3140;font-size:12px;padding-top:15px;padding-bottom:22px;color:#B8C0D3}.bottom-nav,.menu-button{display:none}.mobile-drawer,.drawer-mask{display:none}.back-top{position:fixed;right:24px;bottom:25px;border:1px solid #807653;border-radius:100%;background:#202738;color:#F1DCA3;width:38px;height:38px;z-index:200}.drawer-top{display:flex;justify-content:space-between;align-items:center;padding:14px 19px;border-bottom:1px solid #303849}.drawer-close{border:0;background:none;color:#E8ECF5;font-size:27px}.drawer-group{display:grid;padding:12px 18px;border-bottom:1px solid #303849}.drawer-group b{color:#F1DCA3;font-size:14px}.drawer-group a{padding:6px 5px;min-height:40px;font-size:14px}a:focus-visible,button:focus-visible{outline:2px solid #F1DCA3;outline-offset:3px}@media(max-width:980px){.nav-desktop{display:none}.nav-wrap{height:58px;display:grid;grid-template-columns:1fr auto 1fr;gap:8px}.menu-button{display:inline-flex;align-items:center;justify-content:flex-start;color:#F1DCA3;background:none;border:0;font-size:23px}.brand{justify-self:center;font-size:17px}.brand .media-logo{width:34px;height:29px}.action{justify-self:end;padding:5px 17px;font-size:13px}.mobile-drawer{display:block;position:fixed;inset:0 auto 0 0;width:min(84vw,320px);height:100dvh;overflow-y:auto;background:#151A23;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(0,0,0,.45);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}.bottom-nav{position:fixed;bottom:0;left:0;right:0;display:grid;grid-template-columns:repeat(4,1fr);height:61px;background:#151A23;border-top:1px solid #303849;z-index:700}.bottom-nav a{display:grid;place-items:center;color:#F1DCA3;font-size:13px}.site-footer{padding-bottom:61px}.back-top{bottom:74px}.grid.four{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:768px){.wrap{padding-left:16px;padding-right:16px}.nav-wrap{padding:0 16px}.subnav-inner{padding:0 16px}.hero{grid-template-columns:1fr;margin-top:19px;padding:18px;gap:12px}.hero .hero-image{grid-row:1}.hero h1{font-size:27px}.grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.split,.banner-pair{grid-template-columns:1fr}.content-section{margin-top:31px;margin-bottom:31px}.section-head h2{font-size:21px}.page-heading h1{font-size:27px}.chapter h2{font-size:21px}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.media-device{max-width:190px}.link-card,.article-card,.image-card{padding:15px}.link-card strong{font-size:16px}.link-card span{font-size:13px}}@media(max-width:360px){.brand small{display:none}.brand{gap:5px;font-size:16px}.action{padding:5px 13px}.grid{grid-template-columns:1fr}.grid.four{grid-template-columns:repeat(2,minmax(0,1fr))}}