*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#141B22;color:#EEF2F7;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.82;overflow-x:hidden}a{color:inherit}img{max-width:100%}.site-header{position:sticky;top:0;z-index:9999;width:100%;background:rgba(20,27,34,.92);backdrop-filter:blur(10px);box-shadow:0 8px 24px rgba(0,0,0,.22)}.header-inner{max-width:1180px;min-height:70px;margin:0 auto;padding:0 18px;display:flex;align-items:center;justify-content:space-between;gap:14px}.site-logo{display:inline-flex;align-items:center;text-decoration:none}.site-logo img{display:block;height:40px;width:auto;max-width:168px;object-fit:contain}.logo-fallback{color:#F4B000;font-weight:800}.nav-core{display:flex}.nav-core a{color:#F4B000;padding:8px 11px;font-weight:700;text-decoration:none;white-space:nowrap}.nav-core a.is-current,.nav-core a:hover{color:#FFC533;box-shadow:inset 0 -2px 0 #F4B000}.main-btn{display:inline-flex;align-items:center;justify-content:center;height:42px;min-width:96px;padding:0 20px;background:#F4B000;color:#141B22;border-radius:999px;text-decoration:none;font-weight:700;box-shadow:0 10px 24px rgba(244,176,0,.18);white-space:nowrap}.main-btn:hover{background:#FFC533}.menu-btn{display:none;background:transparent;border:0;width:42px}.menu-btn span{display:block;height:2px;background:#F4B000;margin:5px 0}.channel-bar{background:#1A232D}.channel-inner{max-width:1180px;margin:auto;padding:0 18px;display:flex;overflow-x:auto;white-space:nowrap}.channel-inner a{color:#B9C2CF;text-decoration:none;padding:10px 12px;font-size:14px}.channel-inner a:hover{color:#F4B000}.mobile-drawer,.drawer-mask{display:none}.wrap{width:min(1180px,calc(100% - 36px));margin:auto}.section{padding:54px 0}.section-sm{padding:30px 0}.page-hero{padding:48px 0 22px}.page-hero h1,.home-title{font-size:clamp(30px,4vw,44px);line-height:1.25;color:#F4B000;margin:8px 0 14px}.page-hero p{max-width:820px;color:#D8DEE8;font-size:18px}.eyebrow,.section-title,.reading h2{color:#F4B000}.breadcrumb{font-size:14px;color:#8D98A7}.breadcrumb a{color:#B9C2CF;text-decoration:none}.reading{max-width:820px;margin:auto}.reading h2{font-size:26px;margin-top:32px}.reading p,.reading li{font-size:17px}.panel,.text-card,.topic-link,.faq details{background:#1A232D;border:1px solid rgba(244,176,0,.14);border-radius:16px;box-shadow:0 14px 36px rgba(0,0,0,.28)}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.text-card{padding:24px;text-decoration:none}.text-card h2{margin:0 0 8px;color:#F4B000}.text-card p{margin:0;color:#B9C2CF}.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:14px;background:#1A232D;aspect-ratio:16/9}.media>img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:center;display:block}.media-placeholder{position:absolute;inset:0;background:linear-gradient(135deg,#1A232D,#222C36)}.medium{max-height:240px}.split{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center}.topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.topic-link{padding:16px;text-align:center;text-decoration:none}.link-list{display:grid}.link-list a{padding:10px 0;border-bottom:1px solid rgba(255,255,255,.08);text-decoration:none;color:#D8DEE8}.plain-links{display:flex;flex-wrap:wrap;gap:12px}.plain-links a{color:#F4B000;text-decoration:none}.note{padding:18px 20px;border-left:3px solid #F4B000;background:#222C36;border-radius:0 14px 14px 0;margin-top:28px}.steps{display:grid;gap:12px;counter-reset:s}.step{background:#1A232D;border-radius:14px;padding:17px 18px 17px 56px;position:relative}.step:before{counter-increment:s;content:counter(s);position:absolute;left:18px;top:16px;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;background:#F4B000;color:#141B22;font-weight:800}.hero-slider{position:relative;width:min(1180px,calc(100% - 36px));height:360px;margin:22px auto 0;background:#1A232D;border-radius:16px;overflow:hidden}.slide{display:none;position:absolute;inset:0}.slide.is-active{display:block}.slide img{width:100%;height:100%;object-fit:contain}.slide-placeholder{position:absolute;inset:0;background:linear-gradient(135deg,#1A232D,#222C36)}.slider-prev,.slider-next{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:42px;height:42px;border:0;border-radius:50%;background:rgba(16,22,28,.82);color:#F4B000;font-size:24px}.slider-prev{left:14px}.slider-next{right:14px}.slider-dots{position:absolute;left:0;right:0;bottom:12px;display:flex;justify-content:center;gap:8px;z-index:3}.slider-dot{width:9px;height:9px;border:0;border-radius:50%;background:#8D98A7}.slider-dot.is-active{background:#F4B000}.app-strip{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:center;background:#1A232D;border-radius:16px;padding:24px}.floating-tools{position:fixed;right:14px;top:36%;z-index:9000;display:grid;gap:8px;width:84px}.floating-tools a,.floating-tools button{background:#1A232D;color:#F4B000;border:1px solid rgba(244,176,0,.25);border-radius:10px;padding:10px 8px;text-align:center;text-decoration:none;font-size:13px}.floating-tools .float-primary{background:#F4B000;color:#141B22}.site-footer{background:#0B1015;margin-top:48px}.footer-grid{max-width:1180px;margin:auto;padding:42px 18px;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}.footer-grid h2{font-size:17px;color:#F4B000}.footer-grid a{display:block;color:#B9C2CF;text-decoration:none;margin:6px 0}.footer-bottom{text-align:center;border-top:1px solid rgba(255,255,255,.08);padding:18px;color:#8D98A7;font-size:13px}.mobile-bottom{display:none}.drawer-open{overflow:hidden}.faq details{padding:16px 18px;margin:12px 0}.faq summary{color:#F4B000;font-weight:700}.compact-index{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.compact-index a{background:#222C36;border-radius:12px;padding:14px;text-decoration:none}@media(max-width:1100px){.floating-tools{display:none}.topic-grid{grid-template-columns:repeat(3,1fr)}.hero-slider{height:290px}}@media(max-width:980px){.nav-core,.channel-bar{display:none}.menu-btn{display:block}.header-inner{min-height:64px;padding:0 14px}.site-logo img{height:36px;max-width:150px}.mobile-drawer{display:block;position:fixed;inset:0 auto 0 0;width:min(84vw,320px);background:#1A232D;z-index:12000;transform:translateX(-105%);transition:transform .2s ease;box-shadow:18px 0 40px rgba(0,0,0,.36);overflow-y:auto}.mobile-drawer.is-open{transform:translateX(0)}.drawer-mask{display:none;position:fixed;inset:0;background:rgba(11,16,21,.52);z-index:11000;opacity:0;pointer-events:none;transition:opacity .18s ease}.drawer-mask.is-visible{display:block;opacity:1;pointer-events:auto}.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px}.drawer-close{width:40px;height:40px;border:0;border-radius:50%;background:#222C36;color:#F4B000;font-size:28px}.drawer-groups{padding:0 16px 28px}.drawer-groups section{padding:10px 0;border-top:1px solid rgba(255,255,255,.07)}.drawer-groups h2{font-size:14px;color:#8D98A7}.drawer-groups a{display:block;text-decoration:none;padding:7px 0}.grid-3{grid-template-columns:1fr 1fr}.split,.app-strip{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.hero-slider{height:250px}}@media(max-width:680px){body{padding-bottom:66px}.wrap{width:calc(100% - 28px)}.section{padding:34px 0}.page-hero{padding:32px 0 18px}.page-hero h1,.home-title{font-size:29px}.page-hero p,.reading p,.reading li{font-size:16px}.grid-3{grid-template-columns:1fr}.topic-grid{grid-template-columns:repeat(2,1fr)}.hero-slider{width:calc(100% - 28px);height:185px}.footer-grid{grid-template-columns:1fr}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:9500;height:58px;background:#141B22;border-top:1px solid rgba(244,176,0,.16);display:grid;grid-template-columns:repeat(4,1fr)}.mobile-bottom a{display:grid;place-items:center;text-decoration:none}.compact-index{grid-template-columns:1fr}}@media(max-width:430px){.header-inner{gap:8px}.main-btn{min-width:82px;padding:0 12px;font-size:14px}.site-logo img{height:32px;max-width:132px}}@media(max-width:390px){.header-inner{padding:0 10px}.site-logo img{max-width:120px}}@media(max-width:375px){.site-logo img{max-width:112px}.main-btn{min-width:74px;font-size:13px}.menu-btn{width:36px}}