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:root{--bg:#090909;--surface:#121212;--surface2:#191919;--gold:#E8B84A;--gold2:#C9952E;--text:#F6F0DF;--muted:#BDB29C;--dim:#817867;--line:rgba(232,184,74,.23);--shadow:0 18px 50px rgba(0,0,0,.38)}
html{scroll-behavior:smooth;overflow-x:hidden}body{margin:0;background:radial-gradient(circle at 50% -15%,#202020 0,#0d0d0d 32%,#090909 58%);color:var(--text);font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.82;overflow-x:hidden}a{color:inherit}img{max-width:100%}.shell{width:min(1180px,calc(100% - 32px));margin:0 auto}
.masthead{position:sticky;top:0;z-index:9000;background:rgba(9,9,9,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}.mast-utility{border-bottom:1px solid rgba(255,255,255,.05);background:#070707}.utility-inner{min-height:28px;display:flex;align-items:center;justify-content:space-between;color:var(--dim);font-size:12px;letter-spacing:.08em}.mast-main{min-height:72px;display:grid;grid-template-columns:180px 1fr auto;align-items:center;gap:24px}.brand{display:inline-flex;align-items:center;text-decoration:none;color:var(--gold);font-weight:900;white-space:nowrap}.brand img{display:block;height:42px;width:auto;max-width:160px;object-fit:contain}.brand-fallback{padding:8px 12px;border:1px solid var(--line);border-radius:10px;background:#111}.primary-nav{display:flex;justify-content:center;gap:4px}.primary-nav a{text-decoration:none;color:#DCD4C4;font-weight:700;padding:9px 14px;border-radius:9px;white-space:nowrap}.primary-nav a:hover,.primary-nav a.active{background:#1c1a15;color:var(--gold);box-shadow:inset 0 0 0 1px var(--line)}.entry-btn{display:inline-flex;align-items:center;justify-content:center;min-width:82px;height:40px;padding:0 18px;border-radius:10px;text-decoration:none;font-weight:800;background:var(--gold);color:#17120a;box-shadow:0 8px 24px rgba(232,184,74,.14)}.entry-btn:hover{background:#f1c65b}.topic-ribbon{background:#111;border-top:1px solid rgba(255,255,255,.035)}.ribbon-inner{display:flex;overflow-x:auto;scrollbar-width:thin;gap:2px}.ribbon-inner a{flex:0 0 auto;text-decoration:none;color:#9F9686;font-size:13px;padding:9px 11px}.ribbon-inner a:hover{color:var(--gold)}
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.home-lead{display:grid;grid-template-columns:minmax(0,.9fr) minmax(420px,1.1fr);gap:30px;align-items:center;padding:28px;background:linear-gradient(145deg,#171717,#0f0f0f);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow)}.home-copy h1{font-size:clamp(34px,5vw,58px);line-height:1.08;margin:0 0 18px;color:#fff;letter-spacing:-.035em}.home-copy h1 span{display:block;color:var(--gold)}.home-copy p{color:#D7CDB8;font-size:17px;margin:0 0 20px}.home-links{display:flex;flex-wrap:wrap;gap:10px}.home-links a,.chip-links a{display:inline-flex;text-decoration:none;border:1px solid var(--line);background:#151515;color:#E6DABF;padding:8px 12px;border-radius:999px;font-size:14px}.home-links a:hover,.chip-links a:hover{color:#111;background:var(--gold)}.media{position:relative;width:100%;overflow:hidden;border-radius:16px;background:#151515;border:1px solid rgba(255,255,255,.06);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,#121212,#1d1d1d)}.hero-media{min-height:260px;aspect-ratio:auto}.topic-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.topic-card{position:relative;display:block;min-height:150px;text-decoration:none;background:#141414;border:1px solid rgba(255,255,255,.06);border-radius:16px;padding:20px;overflow:hidden}.topic-card:before{content:"";position:absolute;left:0;top:0;width:3px;height:100%;background:var(--gold);transform:scaleY(.32);transform-origin:top;transition:.2s}.topic-card:hover:before{transform:scaleY(1)}.topic-card em{font-style:normal;color:var(--dim);font-size:12px;letter-spacing:.14em}.topic-card strong{display:block;color:#fff;font-size:21px;margin:14px 0 7px}.topic-card span{display:block;color:#AFA694;font-size:14px;line-height:1.65}.signal-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.signal{padding:17px;border-top:1px solid var(--gold);background:#101010}.signal b{display:block;color:#fff;margin-bottom:5px}.signal span{font-size:13px;color:var(--muted)}.feature-band{display:grid;grid-template-columns:.72fr 1.28fr;gap:20px;align-items:center;background:#111;border:1px solid var(--line);border-radius:18px;padding:20px}.feature-band.reverse{grid-template-columns:1.28fr .72fr}.feature-band.reverse .band-media{order:2}.band-media{height:190px;aspect-ratio:auto}.feature-band h2{color:var(--gold);margin:0 0 10px;font-size:24px}.feature-band p{margin:0;color:#CDC4B2}.mini-note{margin-top:42px;border-left:3px solid var(--gold);padding:16px 18px;background:#101010;color:#CFC6B4;border-radius:0 12px 12px 0}
.page-hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(320px,.62fr);gap:24px;align-items:center}.page-hero.no-image{grid-template-columns:1fr}.page-hero .media{height:250px;aspect-ratio:auto}.content-grid{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:28px;align-items:start}.article{max-width:790px}.article h2{color:var(--gold);font-size:24px;line-height:1.35;margin:34px 0 12px}.article h3{color:#F1D680;font-size:18px;margin:24px 0 8px}.article p{font-size:16.5px;color:#E6DECF;margin:0 0 16px}.article ul,.article ol{padding-left:22px;color:#D7CEBD}.article li{margin:8px 0}.side-index{position:sticky;top:145px;background:#111;border:1px solid rgba(255,255,255,.07);border-radius:16px;padding:18px}.side-index h2{font-size:15px;color:var(--gold);margin:0 0 10px}.side-index a{display:block;text-decoration:none;color:#BDB3A0;padding:8px 0;border-bottom:1px solid rgba(255,255,255,.055);font-size:14px}.side-index a:last-child{border-bottom:0}.side-index a:hover{color:var(--gold)}.info-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:26px 0}.info-strip div{background:#121212;border:1px solid rgba(255,255,255,.065);border-radius:14px;padding:16px}.info-strip b{display:block;color:var(--gold);margin-bottom:5px}.info-strip span{font-size:13px;color:#AAA18F}.steps{list-style:none;padding:0;counter-reset:n}.steps li{counter-increment:n;display:grid;grid-template-columns:38px 1fr;gap:12px;padding:15px 0;border-bottom:1px solid rgba(255,255,255,.07)}.steps li:before{content:counter(n);display:grid;place-items:center;width:30px;height:30px;border-radius:8px;background:#211c12;color:var(--gold);font-weight:800}.steps li:last-child{border-bottom:0}.related-box{margin-top:32px;background:linear-gradient(135deg,#171717,#101010);border:1px solid var(--line);border-radius:16px;padding:20px}.related-box h2{margin:0 0 12px;font-size:18px;color:#fff}.chip-links{display:flex;flex-wrap:wrap;gap:8px}.quote-note{padding:18px 20px;margin:24px 0;background:#18150f;border:1px solid rgba(232,184,74,.2);border-radius:14px;color:#D8C9A8}.image-after{margin:28px 0}.image-after .media{height:245px;aspect-ratio:auto}.qa-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.qa-item{background:#121212;border:1px solid rgba(255,255,255,.07);border-radius:15px;padding:19px}.qa-item h2{margin:0 0 8px;color:var(--gold);font-size:18px}.qa-item p{margin:0;color:#CFC6B4;font-size:15px}.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.service-grid section{background:#121212;border:1px solid rgba(255,255,255,.07);border-radius:15px;padding:18px}.service-grid h2{color:var(--gold);font-size:18px;margin:0 0 10px}.service-grid a{display:block;text-decoration:none;color:#CCC3B0;padding:6px 0}.service-grid a:hover{color:var(--gold)}
.site-footer{background:#050505;border-top:1px solid var(--line);padding:42px 0 96px}.footer-wrap{display:grid;grid-template-columns:1.35fr repeat(3,1fr);gap:28px}.footer-brand img{height:40px;width:auto;object-fit:contain}.footer-brand p{color:#817867;font-size:14px;max-width:280px}.footer-wrap h2{font-size:15px;color:var(--gold);margin:0 0 9px}.footer-wrap a{display:block;text-decoration:none;color:#9F9685;font-size:14px;padding:4px 0}.footer-wrap a:hover{color:var(--gold)}.legal-line{margin-top:28px;padding-top:18px;border-top:1px solid rgba(255,255,255,.06);font-size:12px;color:#766E61}.mobile-dock{display:none}.mobile-drawer,.drawer-mask{display:none}.menu-btn{display:none}body.drawer-open{overflow:hidden}
@media(max-width:980px){.mast-utility,.primary-nav,.topic-ribbon{display:none}.mast-main{min-height:64px;grid-template-columns:44px 1fr auto;gap:8px}.brand{justify-self:center}.brand img{height:34px;max-width:132px}.menu-btn{display:inline-grid;gap:4px;width:38px;height:38px;padding:9px;border:0;background:transparent}.menu-btn span{display:block;height:2px;background:var(--gold);border-radius:2px}.entry-btn{min-width:72px;height:38px;padding:0 12px;font-size:13px}.site-main{width:min(100% - 24px,1180px);padding-top:22px;padding-bottom:92px}.home-lead{grid-template-columns:1fr;padding:20px}.hero-media{min-height:180px}.home-copy{order:2}.topic-cards{grid-template-columns:repeat(2,1fr)}.signal-grid{grid-template-columns:repeat(2,1fr)}.feature-band,.feature-band.reverse{grid-template-columns:1fr}.feature-band.reverse .band-media{order:0}.page-hero{grid-template-columns:1fr}.page-hero .media{height:220px}.content-grid{grid-template-columns:1fr}.side-index{position:static}.footer-wrap{grid-template-columns:1fr 1fr}.mobile-dock{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;left:0;right:0;bottom:0;z-index:10000;background:#080808;border-top:1px solid var(--gold);padding-bottom:env(safe-area-inset-bottom)}.mobile-dock a{text-align:center;text-decoration:none;color:#CFC6B4;padding:11px 3px;font-size:13px}.mobile-drawer{display:block;position:fixed;inset:0 auto 0 0;width:min(84vw,320px);background:#101010;z-index:12000;transform:translateX(-105%);transition:transform .2s ease;box-shadow:18px 0 40px rgba(0,0,0,.48);overflow-y:auto;padding:16px}.mobile-drawer.is-open{transform:translateX(0)}.drawer-mask{display:none;position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:11000;opacity:0;pointer-events:none;transition:opacity .18s ease}.drawer-mask.is-visible{display:block;opacity:1;pointer-events:auto}.drawer-top{display:flex;justify-content:space-between;align-items:center;padding-bottom:14px;border-bottom:1px solid var(--line)}.drawer-top .brand{justify-self:auto}.drawer-close{border:0;background:#1a1a1a;color:var(--gold);width:38px;height:38px;border-radius:8px;font-size:24px}.drawer-section{padding:14px 0;border-bottom:1px solid rgba(255,255,255,.06)}.drawer-section b{display:block;color:var(--gold);font-size:13px;margin-bottom:5px}.drawer-section a{display:block;text-decoration:none;color:#D0C7B5;padding:7px 0}.footer-wrap{gap:20px}}
@media(max-width:680px){.shell{width:min(100% - 24px,1180px)}.utility-note{display:none}.home-copy h1{font-size:34px}.topic-cards,.qa-grid,.service-grid,.info-strip{grid-template-columns:1fr}.signal-grid{grid-template-columns:1fr 1fr}.topic-card{min-height:130px}.feature-band{padding:16px}.band-media{height:160px}.page-hero .media,.image-after .media{height:190px}.footer-wrap{grid-template-columns:1fr}.page-title{font-size:30px}.article p{font-size:16px}.section{margin-top:34px}}
@media(max-width:390px){.site-main{width:min(100% - 20px,1180px)}.brand img{max-width:116px}.entry-btn{min-width:66px;padding:0 9px}.signal-grid{grid-template-columns:1fr}.home-lead{padding:16px}}