:root{--color-bg-base:#05070d;--color-bg-deep:#070a14;--color-bg-elevated:#0c111e;--color-bg-card:rgba(18,24,40,.6);--color-bg-card-hover:rgba(28,36,56,.75);--color-border-soft:hsla(0,0%,100%,.06);--color-border-line:hsla(0,0%,100%,.1);--color-border-gold:rgba(212,175,75,.32);--color-text-primary:#f4f6fb;--color-text-secondary:#c5cbd9;--color-text-muted:#8893a8;--color-text-dim:#5b657a;--color-gold:#d4af4b;--color-gold-soft:#e7c771;--color-gold-deep:#a8862a;--color-blue:#4a8fff;--color-blue-deep:#1f4ed4;--color-cyan:#4cd6e8;--color-success:#3dd589;--color-warning:#f0b441;--color-danger:#ef5a5a;--space-1:0.25rem;--space-2:0.5rem;--space-3:0.75rem;--space-4:1rem;--space-5:1.5rem;--space-6:2rem;--space-7:3rem;--space-8:4rem;--space-9:6rem;--container-max:1180px;--container-large:1280px;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-pill:999px;--shadow-card:0 8px 32px rgba(0,0,0,.4);--shadow-glow:0 0 40px rgba(212,175,75,.15);--font-sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;--font-mono:"JetBrains Mono","Fira Code",Menlo,Consolas,monospace;--transition-fast:160ms cubic-bezier(0.4,0,0.2,1);--transition-base:240ms cubic-bezier(0.4,0,0.2,1)}*,:after,:before{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--color-bg-base);color:var(--color-text-primary);font-family:var(--font-sans);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;scroll-behavior:smooth}body{min-height:100vh;overflow-x:hidden;background:radial-gradient(ellipse at 18% -10%,rgba(31,78,212,.18) 0,transparent 55%),radial-gradient(ellipse at 85% 8%,rgba(212,175,75,.12) 0,transparent 50%),radial-gradient(ellipse at 50% 110%,rgba(76,214,232,.08) 0,transparent 50%),var(--color-bg-base);background-attachment:fixed}a{color:inherit;text-decoration:none;transition:color var(--transition-fast)}img,svg{max-width:100%;display:block}h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-.01em;color:var(--color-text-primary)}h1{font-size:clamp(2.2rem,5vw,3.6rem);line-height:1.1}h2{font-size:clamp(1.6rem,3vw,2.4rem);line-height:1.2}h3{font-size:clamp(1.15rem,2vw,1.4rem);line-height:1.3}h4{font-size:1rem;line-height:1.4}p{color:var(--color-text-secondary)}p,ul{margin:0}ul{padding:0;list-style:none}button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}.container{width:100%;max-width:var(--container-max);margin:0 auto;padding:0 var(--space-5)}@media (min-width:1440px){.container{max-width:var(--container-large)}}.section{padding:var(--space-9) 0;position:relative}.section-header{margin-bottom:var(--space-7);text-align:left}.section-eyebrow{display:inline-block;font-size:.78rem;letter-spacing:.18em;text-transform:uppercase;color:var(--color-gold);margin-bottom:var(--space-3);font-weight:500}.section-title{font-size:clamp(1.7rem,3.2vw,2.4rem);margin-bottom:var(--space-3)}.section-subtitle{color:var(--color-text-secondary);max-width:720px;font-size:1rem}.site-header{position:-webkit-sticky;position:sticky;top:0;z-index:50;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:rgba(5,7,13,.72);border-bottom:1px solid var(--color-border-soft)}.site-header-inner{justify-content:space-between;height:64px}.brand,.site-header-inner{display:flex;align-items:center}.brand{gap:var(--space-3);font-weight:600;font-size:1.02rem}.brand-mark{width:32px;height:32px;display:grid;place-items:center;border-radius:8px;background:linear-gradient(135deg,var(--color-gold) 0,var(--color-gold-deep) 100%);color:#0c0a04;font-weight:700;font-size:1rem;box-shadow:0 4px 18px rgba(212,175,75,.25)}.brand-name{color:var(--color-text-primary)}.brand-dot{color:var(--color-gold);margin:0 6px;opacity:.6}.brand-zh{color:var(--color-text-secondary);font-weight:400}.nav{display:none;align-items:center;gap:var(--space-6)}@media (min-width:768px){.nav{display:flex}}.nav a{font-size:.92rem;color:var(--color-text-muted);position:relative}.nav a:hover{color:var(--color-text-primary)}.nav a:after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:1px;background:var(--color-gold);transform:scaleX(0);transition:transform var(--transition-base)}.nav a:hover:after{transform:scaleX(1)}.header-cta{display:none}@media (min-width:768px){.header-cta{display:inline-flex}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:.7rem 1.2rem;border-radius:var(--radius-md);font-size:.92rem;font-weight:500;letter-spacing:.02em;transition:all var(--transition-fast);white-space:nowrap;text-align:center;cursor:pointer;border:1px solid transparent}.btn-gold{background:linear-gradient(135deg,var(--color-gold) 0,var(--color-gold-deep) 100%);color:#110d03;font-weight:600;box-shadow:0 4px 18px rgba(212,175,75,.2)}.btn-gold:hover{transform:translateY(-1px);box-shadow:0 8px 26px rgba(212,175,75,.35)}.btn-outline{background:hsla(0,0%,100%,.02);border-color:var(--color-border-line);color:var(--color-text-primary)}.btn-outline:hover{border-color:var(--color-gold);color:var(--color-gold);background:rgba(212,175,75,.04)}.btn-ghost{color:var(--color-text-secondary);background:transparent}.btn-ghost:hover{color:var(--color-text-primary);background:hsla(0,0%,100%,.04)}.btn-icon{width:1.05em;height:1.05em;display:inline-block;flex-shrink:0}.btn-block{width:100%}.hero{position:relative;padding:clamp(4rem,10vw,7rem) 0 clamp(3rem,8vw,6rem);overflow:hidden}.hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(hsla(0,0%,100%,.03) 1px,transparent 0),linear-gradient(90deg,hsla(0,0%,100%,.03) 1px,transparent 0);background-size:56px 56px;background-position:-1px -1px;-webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 30%,#000 30%,transparent 70%);mask-image:radial-gradient(ellipse 80% 60% at 50% 30%,#000 30%,transparent 70%);pointer-events:none}.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr;grid-gap:var(--space-7);gap:var(--space-7);align-items:center}@media (min-width:1024px){.hero-inner{grid-template-columns:1.4fr 1fr;gap:var(--space-9)}}.hero-eyebrow{display:inline-flex;align-items:center;gap:var(--space-2);padding:.4rem .85rem;border-radius:var(--radius-pill);background:rgba(212,175,75,.08);border:1px solid var(--color-border-gold);color:var(--color-gold);font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;margin-bottom:var(--space-5)}.hero-eyebrow-dot{width:6px;height:6px;border-radius:50%;background:var(--color-gold);box-shadow:0 0 8px var(--color-gold);animation:pulse 2.4s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.45}}.hero h1{margin-bottom:var(--space-4)}.hero h1 .gold{background:linear-gradient(135deg,var(--color-gold-soft) 0,var(--color-gold) 50%,var(--color-gold-deep) 100%);-webkit-background-clip:text;background-clip:text;color:transparent}.hero-tags{display:flex;flex-wrap:wrap;gap:var(--space-2);margin-bottom:var(--space-5)}.hero-tag{padding:.36rem .85rem;border-radius:var(--radius-pill);background:hsla(0,0%,100%,.04);border:1px solid var(--color-border-line);color:var(--color-text-secondary);font-size:.82rem;font-weight:500;transition:all var(--transition-fast)}.hero-tag:hover{border-color:var(--color-border-gold);color:var(--color-gold)}.hero-slogan{font-size:clamp(1.05rem,2vw,1.2rem);color:var(--color-text-primary);margin-bottom:var(--space-4);font-weight:500;max-width:620px;line-height:1.5}.hero-desc{color:var(--color-text-secondary);margin-bottom:var(--space-6);font-size:.96rem;max-width:600px}.hero-ctas{display:flex;flex-wrap:wrap;gap:var(--space-3)}.hero-card{position:relative;padding:var(--space-6);background:linear-gradient(160deg,rgba(28,36,56,.55),rgba(12,17,30,.65));border:1px solid var(--color-border-line);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);box-shadow:var(--shadow-card)}.hero-card,.hero-card:before{border-radius:var(--radius-lg)}.hero-card:before{content:"";position:absolute;inset:0;padding:1px;background:linear-gradient(180deg,rgba(212,175,75,.35),transparent 40%);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}.hero-card-label{font-size:.74rem;letter-spacing:.18em;text-transform:uppercase;color:var(--color-gold);margin-bottom:var(--space-3);font-weight:500}.hero-card-name{font-size:1.5rem;font-weight:600;margin-bottom:var(--space-1)}.hero-card-title{font-size:.88rem;color:var(--color-text-muted);margin-bottom:var(--space-5);font-family:var(--font-mono)}.hero-card-list{display:flex;flex-direction:column;gap:var(--space-3)}.hero-card-item{display:flex;align-items:center;gap:var(--space-3);font-size:.88rem;color:var(--color-text-secondary);padding:.6rem .8rem;border-radius:var(--radius-md);background:hsla(0,0%,100%,.025);border:1px solid var(--color-border-soft);transition:all var(--transition-fast)}.hero-card-item:hover{background:rgba(212,175,75,.06);border-color:var(--color-border-gold);color:var(--color-text-primary)}.hero-card-item .icon{width:14px;height:14px;color:var(--color-gold);flex-shrink:0}.hero-card-item .label{flex-shrink:0;color:var(--color-text-muted)}.hero-card-item .value{margin-left:auto;font-family:var(--font-mono);color:var(--color-text-primary);font-size:.84rem}.portfolio-grid{display:grid;grid-template-columns:1fr;grid-gap:var(--space-4);gap:var(--space-4)}@media (min-width:640px){.portfolio-grid{grid-template-columns:repeat(2,1fr)}}@media (min-width:1024px){.portfolio-grid{grid-template-columns:repeat(3,1fr)}}.portfolio-card{position:relative;padding:var(--space-6);background:var(--color-bg-card);border:1px solid var(--color-border-line);border-radius:var(--radius-lg);transition:all var(--transition-base);display:flex;flex-direction:column;gap:var(--space-3);overflow:hidden;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.portfolio-card:before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--color-gold),transparent);opacity:0;transition:opacity var(--transition-base)}.portfolio-card:hover{background:var(--color-bg-card-hover);border-color:var(--color-border-gold);transform:translateY(-2px);box-shadow:var(--shadow-card)}.portfolio-card:hover:before{opacity:1}.portfolio-card-tag{display:inline-flex;align-items:center;gap:6px;font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--color-gold);font-weight:500;font-family:var(--font-mono)}.portfolio-card-name{font-size:1.2rem;font-weight:600;color:var(--color-text-primary);margin-top:var(--space-1)}.portfolio-card-name .en{display:block;font-size:.78rem;font-weight:400;color:var(--color-text-muted);letter-spacing:.05em;margin-top:4px;font-family:var(--font-mono)}.portfolio-card-tagline{font-size:.92rem;color:var(--color-text-secondary);line-height:1.6}.portfolio-card-keywords{display:flex;flex-wrap:wrap;gap:6px;margin-top:var(--space-2)}.portfolio-card-keyword{padding:3px 9px;border-radius:var(--radius-sm);background:hsla(0,0%,100%,.03);border:1px solid var(--color-border-soft);color:var(--color-text-muted);font-size:.74rem;font-family:var(--font-mono)}.portfolio-card-footer{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:var(--space-4);border-top:1px solid var(--color-border-soft)}.portfolio-card-link{display:inline-flex;align-items:center;gap:6px;font-size:.86rem;color:var(--color-gold);font-weight:500}.portfolio-card-link:hover{color:var(--color-gold-soft)}.portfolio-card-link[data-disabled=true]{color:var(--color-text-dim);cursor:not-allowed}.portfolio-card-risk{display:inline-flex;align-items:center;gap:5px;font-size:.72rem;color:var(--color-warning);background:rgba(240,180,65,.08);padding:3px 8px;border-radius:var(--radius-sm)}.portfolio-card-risk:before{content:"";width:5px;height:5px;border-radius:50%;background:var(--color-warning)}.bitshun{position:relative;padding:var(--space-9) 0}.bitshun-inner{position:relative;padding:clamp(2rem,5vw,3.5rem);border-radius:var(--radius-lg);background:linear-gradient(160deg,rgba(31,78,212,.18) 0,rgba(12,17,30,.7) 60%),var(--color-bg-elevated);border:1px solid var(--color-border-line);overflow:hidden}.bitshun-inner:before{content:"";position:absolute;top:-50%;right:-10%;width:480px;height:480px;background:radial-gradient(circle,rgba(76,214,232,.18) 0,transparent 60%);pointer-events:none}.bitshun-grid{position:relative;display:grid;grid-template-columns:1fr;grid-gap:var(--space-6);gap:var(--space-6);align-items:start}@media (min-width:768px){.bitshun-grid{grid-template-columns:1.2fr 1fr;gap:var(--space-7)}}.bitshun-eyebrow{display:inline-flex;align-items:center;gap:var(--space-2);font-size:.78rem;letter-spacing:.18em;text-transform:uppercase;color:var(--color-cyan);margin-bottom:var(--space-4);font-weight:500}.bitshun-title{font-size:clamp(1.7rem,3vw,2.3rem);margin-bottom:var(--space-3)}.bitshun-subtitle{font-size:1.04rem;color:var(--color-text-primary);margin-bottom:var(--space-3);font-weight:500}.bitshun-desc{color:var(--color-text-secondary);margin-bottom:var(--space-5)}.bitshun-values{display:grid;grid-template-columns:repeat(2,1fr);grid-gap:var(--space-3);gap:var(--space-3)}.bitshun-value{padding:var(--space-3) var(--space-4);background:hsla(0,0%,100%,.025);border:1px solid var(--color-border-soft);border-radius:var(--radius-md)}.bitshun-value-title{font-size:.92rem;font-weight:600;color:var(--color-text-primary);margin-bottom:2px}.bitshun-value-desc{font-size:.78rem;color:var(--color-text-muted)}.bitshun-cta{margin-top:var(--space-6)}.bitshun-risk{margin-top:var(--space-5);padding:var(--space-3) var(--space-4);background:rgba(240,180,65,.06);border:1px solid rgba(240,180,65,.18);border-radius:var(--radius-md);font-size:.82rem;color:var(--color-warning)}.cap-grid{display:grid;grid-template-columns:1fr;grid-gap:var(--space-4);gap:var(--space-4)}@media (min-width:640px){.cap-grid{grid-template-columns:repeat(2,1fr)}}.cap-card{padding:var(--space-6);background:var(--color-bg-card);border:1px solid var(--color-border-line);border-radius:var(--radius-lg);transition:all var(--transition-base);position:relative;overflow:hidden}.cap-card:hover{border-color:var(--color-border-gold);background:var(--color-bg-card-hover)}.cap-card-no{font-size:.74rem;font-family:var(--font-mono);color:var(--color-gold);letter-spacing:.1em;margin-bottom:var(--space-3)}.cap-card-title{font-size:1.15rem;font-weight:600;margin-bottom:4px}.cap-card-title-en{font-size:.78rem;color:var(--color-text-muted);font-family:var(--font-mono);margin-bottom:var(--space-3)}.cap-card-desc{font-size:.9rem;color:var(--color-text-secondary);margin-bottom:var(--space-4);line-height:1.6}.cap-card-bullets{display:flex;flex-wrap:wrap;gap:6px}.cap-card-bullet{padding:4px 10px;background:hsla(0,0%,100%,.03);border:1px solid var(--color-border-soft);border-radius:var(--radius-sm);font-size:.76rem;color:var(--color-text-muted)}.principles-grid{display:grid;grid-template-columns:1fr;grid-gap:var(--space-4);gap:var(--space-4)}@media (min-width:640px){.principles-grid{grid-template-columns:repeat(2,1fr)}}@media (min-width:1024px){.principles-grid{grid-template-columns:repeat(4,1fr)}}.principle-card{padding:var(--space-5);background:var(--color-bg-card);border:1px solid var(--color-border-line);border-radius:var(--radius-lg);transition:transform var(--transition-base),border-color var(--transition-base)}.principle-card:hover{transform:translateY(-3px);border-color:var(--color-border-gold)}.principle-card-no{font-size:1.3rem;font-family:var(--font-mono);color:var(--color-gold);margin-bottom:var(--space-3);font-weight:600}.principle-card-title{font-size:1.04rem;font-weight:600;margin-bottom:var(--space-2)}.principle-card-desc{font-size:.86rem;color:var(--color-text-muted);line-height:1.6}.contact-grid{display:grid;grid-template-columns:1fr;grid-gap:var(--space-5);gap:var(--space-5)}@media (min-width:900px){.contact-grid{grid-template-columns:1.3fr 1fr;gap:var(--space-7)}}.contact-card{padding:clamp(1.5rem,4vw,2.5rem);background:var(--color-bg-card);border:1px solid var(--color-border-line);border-radius:var(--radius-lg);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.contact-list{display:flex;flex-direction:column;gap:var(--space-3);margin-top:var(--space-5)}.contact-item{display:flex;align-items:center;gap:var(--space-4);padding:var(--space-4);border-radius:var(--radius-md);background:hsla(0,0%,100%,.025);border:1px solid var(--color-border-soft);transition:all var(--transition-fast)}.contact-item:hover{border-color:var(--color-border-gold);background:rgba(212,175,75,.04);transform:translateX(2px)}.contact-item-icon{width:40px;height:40px;display:grid;place-items:center;border-radius:var(--radius-md);background:rgba(212,175,75,.1);color:var(--color-gold);flex-shrink:0}.contact-item-info{flex:1 1;min-width:0}.contact-item-label{font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--color-text-muted);margin-bottom:2px}.contact-item-value{font-size:.94rem;color:var(--color-text-primary);font-family:var(--font-mono);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.contact-actions{display:grid;grid-template-columns:repeat(2,1fr);grid-gap:var(--space-3);gap:var(--space-3);margin-top:var(--space-5)}.qr-card{padding:var(--space-6);background:var(--color-bg-card);border:1px solid var(--color-border-line);border-radius:var(--radius-lg);text-align:center;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.qr-image{width:100%;max-width:220px;margin:var(--space-5) auto;padding:var(--space-4);background:#fff;border-radius:var(--radius-md);aspect-ratio:1/1;display:grid;place-items:center}.qr-image img{width:100%;height:100%;object-fit:contain}.qr-label{font-size:.82rem;color:var(--color-text-muted)}.qr-tabs{display:inline-flex;background:hsla(0,0%,100%,.03);padding:4px;border-radius:var(--radius-md);gap:2px;margin-bottom:4px}.qr-tab{padding:6px 14px;font-size:.82rem;border-radius:6px;color:var(--color-text-muted);transition:all var(--transition-fast)}.qr-tab.active{background:rgba(212,175,75,.12);color:var(--color-gold)}.footer{margin-top:var(--space-9);padding:var(--space-7) 0 var(--space-6);border-top:1px solid var(--color-border-line);background:rgba(5,7,13,.6)}.footer-top{display:grid;grid-template-columns:1fr;grid-gap:var(--space-5);gap:var(--space-5);margin-bottom:var(--space-6)}@media (min-width:768px){.footer-top{grid-template-columns:1.5fr 1fr 1fr}}.footer-brand-desc{margin-top:var(--space-3);color:var(--color-text-muted);font-size:.86rem;max-width:380px}.footer-col-title{font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--color-text-muted);margin-bottom:var(--space-4)}.footer-links{display:flex;flex-direction:column;gap:var(--space-2)}.footer-links a{font-size:.88rem;color:var(--color-text-secondary)}.footer-links a:hover{color:var(--color-gold)}.footer-disclaimer{padding-top:var(--space-5);line-height:1.7}.footer-bottom,.footer-disclaimer{border-top:1px solid var(--color-border-soft);font-size:.78rem;color:var(--color-text-dim)}.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:var(--space-3);margin-top:var(--space-5);padding-top:var(--space-4)}.floating-bar{position:fixed;bottom:var(--space-4);left:50%;transform:translateX(-50%);z-index:40;display:flex;gap:var(--space-2);padding:6px;background:rgba(12,17,30,.85);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border:1px solid var(--color-border-line);border-radius:var(--radius-pill);box-shadow:0 12px 36px rgba(0,0,0,.5)}@media (min-width:768px){.floating-bar{display:none}}.floating-btn{width:42px;height:42px;display:grid;place-items:center;border-radius:50%;background:hsla(0,0%,100%,.03);color:var(--color-text-secondary);transition:all var(--transition-fast)}.floating-btn:active,.floating-btn:hover{background:rgba(212,175,75,.12);color:var(--color-gold)}.floating-btn.primary{background:linear-gradient(135deg,var(--color-gold) 0,var(--color-gold-deep) 100%);color:#110d03}.toast{position:fixed;bottom:88px;left:50%;transform:translateX(-50%);padding:.7rem 1.2rem;background:rgba(12,17,30,.95);border:1px solid var(--color-border-gold);border-radius:var(--radius-pill);color:var(--color-text-primary);font-size:.86rem;z-index:60;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);box-shadow:0 8px 32px rgba(0,0,0,.5);animation:toastIn .24s ease}@keyframes toastIn{0%{opacity:0;transform:translate(-50%,8px)}to{opacity:1;transform:translate(-50%)}}.muted{color:var(--color-text-muted)}.gold{color:var(--color-gold)}.mono{font-family:var(--font-mono)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}@media (prefers-reduced-motion:reduce){*,:after,:before{animation-duration:.001ms!important;transition-duration:.001ms!important}html{scroll-behavior:auto}}