/* ===== Reset & Base ===== */
*,*::before,*::after{box-sizing:border-box}
*{margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{min-height:100vh;background:var(--color-bg);color:var(--color-text);font-family:var(--font-sans);font-size:1rem;font-weight:400;line-height:1.7;overflow-x:hidden}
main{display:block}
img,svg,video{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit;background:none;border:0}
ul,ol{list-style:none}
a{color:inherit;text-decoration:none}
[hidden]{display:none!important}
::selection{background:var(--color-green);color:var(--color-bg)}
:focus-visible{outline:2px solid var(--color-green);outline-offset:3px;border-radius:2px}

/* ===== Variables ===== */
:root{
--color-bg:#0B1020;
--color-surface:#1B2340;
--color-surface-2:#252F54;
--color-text:#E8EDF2;
--color-text-muted:#A9B2C0;
--color-green:#00FF85;
--color-orange:#FF7A00;
--color-purple:#7B5CF0;
--color-light:#F2F7FA;
--font-sans:'Noto Sans SC','Source Han Sans CN','PingFang SC','Microsoft YaHei',sans-serif;
--font-mono:'JetBrains Mono','SFMono-Regular','SF Mono','Menlo',monospace;
--container:1200px;
--radius:16px;
--radius-sm:8px;
--ease:cubic-bezier(0.22,0.61,0.36,1);
--duration:300ms;
}

/* ===== Typography ===== */
h1,h2,h3,h4{font-weight:800;line-height:1.1;letter-spacing:-0.02em;text-transform:uppercase;transform:skewX(-2deg)}
h1{font-size:clamp(2.5rem,5vw,4rem)}
h2{font-size:clamp(1.75rem,3vw,2.5rem)}
h3{font-size:1.25rem}
p{max-width:68ch}
code,.mono{font-family:var(--font-mono)}

/* ===== Container & Layout ===== */
.container{width:min(100% - 2rem,var(--container));margin-inline:auto}
.section{padding:5rem 0}
.section-space{padding:3.5rem 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:2rem;flex-wrap:wrap;margin-bottom:2.5rem}
.section-eyebrow{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--font-mono);font-size:.8125rem;letter-spacing:.18em;text-transform:uppercase;color:var(--color-green)}
.section-eyebrow::before{content:"\25C6";font-size:.625rem;color:var(--color-purple)}
.section-title{margin-top:.5rem;color:var(--color-light)}
.section-desc{margin-top:.75rem;color:var(--color-text-muted);max-width:60ch}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1.5rem}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.5rem}
.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:1.5rem}
.stack{display:grid;gap:1rem}

/* ===== Skip Link ===== */
.skip-link{position:fixed;top:-100%;left:1rem;z-index:2000;padding:.75rem 1.25rem;background:var(--color-green);color:var(--color-bg);font-weight:700;border-radius:var(--radius-sm);transition:top var(--duration) var(--ease)}
.skip-link:focus{top:1rem}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1.5rem;font-weight:700;font-size:.9375rem;line-height:1.2;border-radius:var(--radius-sm);transition:background var(--duration) var(--ease),color var(--duration) var(--ease),border-color var(--duration) var(--ease),transform var(--duration) var(--ease)}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--color-green);color:var(--color-bg)}
.btn-primary:hover{background:#2eff94}
.btn-accent{background:var(--color-orange);color:var(--color-bg)}
.btn-accent:hover{background:#ff8c2e}
.btn-ghost{background:transparent;border:1px solid var(--color-text-muted);color:var(--color-text)}
.btn-ghost:hover{border-color:var(--color-purple);color:var(--color-purple)}
.btn-small{padding:.5rem 1rem;font-size:.8125rem}
.btn-large{padding:1rem 2rem;font-size:1.0625rem}
.btn-label{display:inline-block}
.btn-icon{display:inline-block;font-size:1.1em;line-height:1;transition:transform var(--duration) var(--ease)}
.btn:hover .btn-icon{transform:translate(2px,-2px)}
.btn-group{display:flex;flex-wrap:wrap;gap:.75rem;align-items:center}

/* ===== Header ===== */
.site-header{position:sticky;top:0;z-index:1000;background:var(--color-bg)}
.header-progress{position:absolute;top:-1px;left:0;width:100%;height:3px;z-index:3;pointer-events:none}
.header-progress-bar{display:block;width:0;height:100%;background:linear-gradient(90deg,var(--color-green),var(--color-purple),var(--color-orange));transition:width 120ms linear}
.masthead{position:relative;display:flex;align-items:center;justify-content:center;padding:1.5rem 0 1rem;gap:1rem}
.masthead-dateline{position:absolute;left:0;top:50%;transform:translateY(-50%);font-family:var(--font-mono);font-size:.75rem;letter-spacing:.16em;text-transform:uppercase;color:var(--color-text-muted)}
.masthead-dateline::before{content:"\25B2";color:var(--color-green);margin-right:.5rem;font-size:.625rem}
.masthead-actions{position:absolute;right:0;top:50%;transform:translateY(-50%);display:flex;align-items:center;gap:.75rem}
.brand{display:inline-flex;flex-direction:column;align-items:center;text-decoration:none;line-height:1.2}
.brand-wordmark{display:inline-block;font-size:2rem;font-weight:800;letter-spacing:-.02em;text-transform:uppercase;transform:skewX(-2deg);color:var(--color-text)}
.brand-wordmark::before{content:"";display:inline-block;width:8px;height:8px;margin-right:.5rem;background:var(--color-orange);transform:skewX(-6deg)}
.brand-wordmark-accent{color:var(--color-green)}
.brand-tagline{font-size:.8125rem;color:var(--color-text-muted);letter-spacing:.14em;text-transform:uppercase;margin-top:.25rem}
.nav-shell{border-top:1px solid rgba(121,134,203,.2);border-bottom:1px solid rgba(121,134,203,.2);background:var(--color-bg)}
.nav-bar{display:flex;align-items:center;justify-content:center;min-height:52px;position:relative}
.nav-mobile-brand{display:none;font-weight:800;font-size:1.125rem;letter-spacing:.04em;text-transform:uppercase;color:var(--color-text);transform:skewX(-2deg)}
.site-nav{display:flex;align-items:center;gap:.25rem;flex-wrap:wrap}
.nav-link{position:relative;display:inline-flex;align-items:baseline;gap:.4rem;padding:.625rem .9rem;font-weight:600;font-size:.9375rem;color:var(--color-text-muted);transition:color var(--duration) var(--ease)}
.nav-link:hover{color:var(--color-text)}
.nav-link[aria-current="page"]{color:var(--color-light)}
.nav-link[aria-current="page"]::after{content:"";position:absolute;left:.9rem;right:.9rem;bottom:2px;height:2px;background:var(--color-purple)}
.nav-index{font-family:var(--font-mono);font-size:.6875rem;color:var(--color-green)}
.nav-link[aria-current="page"] .nav-index{color:var(--color-purple)}
.nav-label{display:inline-block}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:40px;padding:8px 10px;border:1px solid rgba(121,134,203,.3);border-radius:var(--radius-sm)}
.nav-toggle-bar{display:block;width:100%;height:2px;background:var(--color-text);border-radius:2px;transition:transform var(--duration) var(--ease),opacity var(--duration) var(--ease)}
.nav-toggle.is-active .nav-toggle-bar:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-active .nav-toggle-bar:nth-child(2){opacity:0}
.nav-toggle.is-active .nav-toggle-bar:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===== Footer ===== */
.site-footer{margin-top:5rem;position:relative;background:#0D1428;border-top:1px solid rgba(121,134,203,.25)}
.site-footer::before{content:"";position:absolute;top:-1px;left:0;width:100%;height:3px;background:linear-gradient(90deg,var(--color-green),var(--color-purple),var(--color-orange));opacity:.7}
.footer-main{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:3rem;padding:4rem 0 3rem}
.footer-brand .brand{align-items:flex-start}
.footer-brand .brand-wordmark{font-size:1.5rem}
.footer-brand .brand-wordmark::before{width:6px;height:6px}
.footer-description{margin-top:1rem;color:var(--color-text-muted);font-size:.9375rem;max-width:38ch}
.footer-statement{margin-top:1.5rem;padding:.75rem 1rem .75rem 1.25rem;border-left:3px solid var(--color-green);background:var(--color-surface);color:var(--color-text);font-size:.875rem;line-height:1.6;max-width:none}
.footer-heading{font-size:1rem;font-weight:800;text-transform:uppercase;letter-spacing:.08em;color:var(--color-light);padding-bottom:.5rem;margin-bottom:1.25rem;border-bottom:1px solid rgba(121,134,203,.2);position:relative}
.footer-heading::after{content:"";position:absolute;left:0;bottom:-1px;width:32px;height:2px;background:var(--color-green)}
.footer-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.5rem 1.5rem}
.footer-nav a{display:inline-flex;align-items:center;gap:.4rem;font-size:.9375rem;color:var(--color-text-muted);transition:color var(--duration) var(--ease),transform var(--duration) var(--ease)}
.footer-nav a::before{content:"\2192";font-family:var(--font-mono);font-size:.75rem;color:var(--color-purple)}
.footer-nav a:hover{color:var(--color-text);transform:translateX(2px)}
.contact-list{display:grid;gap:.875rem}
.contact-item{display:flex;gap:.75rem;font-size:.9375rem}
.contact-label{flex-shrink:0;width:2.5rem;font-family:var(--font-mono);font-size:.75rem;text-transform:uppercase;letter-spacing:.08em;color:var(--color-orange);padding-top:.25rem}
.contact-value{color:var(--color-text-muted);word-break:break-all}
address.contact-value{font-style:normal}
.footer-note{margin-top:1.25rem;padding:.75rem 1rem;background:rgba(123,92,240,.12);border:1px solid rgba(123,92,240,.3);border-radius:var(--radius-sm);font-size:.8125rem;color:var(--color-text-muted);max-width:none}
.footer-meta{border-top:1px solid rgba(121,134,203,.2);padding:1.25rem 0}
.footer-meta-inner{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;font-family:var(--font-mono);font-size:.8125rem;color:var(--color-text-muted)}

/* ===== Breadcrumbs ===== */
.breadcrumbs{display:flex;align-items:center;flex-wrap:wrap;gap:.5rem;padding:1.25rem 0 0;font-size:.875rem;color:var(--color-text-muted)}
.breadcrumb-link{color:var(--color-purple)}
.breadcrumb-link:hover{text-decoration:underline}
.breadcrumb-separator{color:var(--color-text-muted);opacity:.55;font-family:var(--font-mono);font-size:.8125rem}
.breadcrumb-current{color:var(--color-text);font-weight:600}

/* ===== Page Hero ===== */
.page-hero{position:relative;padding:4rem 0 3.5rem;overflow:hidden}
.page-hero::before{content:"";position:absolute;top:-30%;right:-8%;width:480px;height:480px;background:radial-gradient(circle,rgba(123,92,240,.22),transparent 65%);pointer-events:none}
.page-hero::after{content:"";position:absolute;bottom:-35%;left:-5%;width:420px;height:420px;background:radial-gradient(circle,rgba(0,255,133,.12),transparent 65%);pointer-events:none}
.page-hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.4fr) minmax(280px,.8fr);gap:2.5rem;align-items:center}
.hero-kicker{font-family:var(--font-mono);font-size:.8125rem;letter-spacing:.18em;text-transform:uppercase;color:var(--color-green)}
.hero-title{margin:.75rem 0 1rem;color:var(--color-light)}
.hero-desc{color:var(--color-text-muted);font-size:1.0625rem;max-width:60ch}
.hero-meta{display:flex;flex-wrap:wrap;gap:.625rem;margin-top:1.5rem}
.hero-frame{position:relative;padding:2rem 1.75rem;border:1px solid rgba(121,134,203,.25);border-radius:var(--radius);background:linear-gradient(145deg,rgba(27,35,64,.7),rgba(11,16,32,.4))}
.hero-frame::before,.hero-frame::after{content:"";position:absolute;width:16px;height:16px;border-color:var(--color-green);border-style:solid}
.hero-frame::before{top:-1px;left:-1px;border-width:2px 0 0 2px;border-top-left-radius:var(--radius-sm)}
.hero-frame::after{bottom:-1px;right:-1px;border-width:0 2px 2px 0;border-bottom-right-radius:var(--radius-sm)}
.hero-scale{position:absolute;right:1.25rem;top:50%;transform:translateY(-50%);width:2px;height:70%;background:repeating-linear-gradient(to bottom,var(--color-purple) 0 4px,transparent 4px 10px);opacity:.6}

/* ===== Cards & Bento ===== */
.card{background:var(--color-surface);border:1px solid rgba(121,134,203,.18);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:transform var(--duration) var(--ease),border-color var(--duration) var(--ease)}
.card:hover{transform:translateY(-4px);border-color:rgba(0,255,133,.4)}
.card-media{position:relative;overflow:hidden}
.card-body{padding:1.5rem;display:grid;gap:.75rem}
.card-title{font-size:1.25rem;color:var(--color-light)}
.card-text{font-size:.9375rem;color:var(--color-text-muted)}
.bento-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));grid-auto-rows:minmax(180px,auto);gap:1.25rem}
.bento-card{grid-column:span 4;grid-row:span 2;background:var(--color-surface);border:1px solid rgba(121,134,203,.18);border-radius:var(--radius);padding:1.75rem;display:flex;flex-direction:column;justify-content:space-between;transition:transform var(--duration) var(--ease),border-color var(--duration) var(--ease),background var(--duration) var(--ease)}
.bento-card:hover{transform:translateY(-4px);border-color:rgba(0,255,133,.4);background:var(--color-surface-2)}
.bento-wide{grid-column:span 8}
.bento-tall{grid-row:span 4}
.bento-card-primary{background:linear-gradient(135deg,#22D97E,#00B3A0);color:var(--color-bg)}
.bento-card-primary:hover{background:linear-gradient(135deg,#22D97E,#00B3A0);border-color:transparent}
.bento-card-accent{background:linear-gradient(135deg,var(--color-orange),#FFB040);color:var(--color-bg)}
.bento-card-accent:hover{background:linear-gradient(135deg,var(--color-orange),#FFB040);border-color:transparent}

/* ===== Data Table ===== */
.data-table{border:1px solid rgba(121,134,203,.2);border-radius:var(--radius);background:var(--color-surface);padding:.5rem 0;overflow:hidden}
.data-row{display:grid;grid-template-columns:minmax(140px,1fr) 2fr;gap:1rem;padding:1rem 1.5rem;border-bottom:1px solid rgba(121,134,203,.12);align-items:baseline}
.data-row:last-child{border-bottom:0}
.data-cell-label{font-family:var(--font-mono);font-size:.75rem;text-transform:uppercase;letter-spacing:.1em;color:var(--color-green)}
.data-cell-value{color:var(--color-text);font-size:.9375rem}

/* ===== Tags ===== */
.tag{display:inline-flex;align-items:center;padding:.2rem .625rem;border-radius:999px;font-size:.75rem;font-weight:700;line-height:1.5;letter-spacing:.04em}
.tag-green{background:rgba(0,255,133,.15);color:var(--color-green);border:1px solid rgba(0,255,133,.35)}
.tag-orange{background:rgba(255,122,0,.15);color:var(--color-orange);border:1px solid rgba(255,122,0,.35)}
.tag-purple{background:rgba(123,92,240,.15);color:var(--color-purple);border:1px solid rgba(123,92,240,.35)}

/* ===== Article & Annotation ===== */
.text-block{max-width:70ch}
.text-block p{margin-bottom:1.25em;color:var(--color-text)}
.lead{font-size:1.125rem;line-height:1.8;color:var(--color-text-muted)}
.annotation{border-left:3px solid var(--color-orange);background:var(--color-surface);padding:1.25rem 1.5rem;margin:1.5rem 0;border-radius:0 var(--radius-sm) var(--radius-sm) 0;font-size:.9375rem;color:var(--color-text-muted);max-width:none}
.hr-rule{height:1px;border:0;background:linear-gradient(90deg,transparent,rgba(121,134,203,.5),transparent);margin:3rem 0}

/* ===== Filter ===== */
.filter-bar{display:flex;flex-wrap:wrap;gap:.5rem .75rem;padding:.75rem 0}
.filter-btn{display:inline-flex;align-items:center;gap:.375rem;padding:.5rem 1rem;border:1px solid rgba(121,134,203,.3);border-radius:999px;font-size:.8125rem;font-weight:600;color:var(--color-text-muted);background:transparent;cursor:pointer;transition:color var(--duration) var(--ease),border-color var(--duration) var(--ease),background var(--duration) var(--ease)}
.filter-btn:hover{color:var(--color-text);border-color:var(--color-purple)}
.filter-btn[aria-pressed="true"],.filter-btn.is-active{background:var(--color-purple);border-color:var(--color-purple);color:var(--color-light)}

/* ===== Image Ratio ===== */
.img-ratio{position:relative;display:block;width:100%;overflow:hidden;background:var(--color-surface);border-radius:var(--radius-sm);isolation:isolate}
.img-ratio::before{content:"IMG";position:absolute;inset:0;display:grid;place-items:center;font-family:var(--font-mono);font-size:.75rem;letter-spacing:.3em;color:var(--color-text-muted);border:1px dashed rgba(121,134,203,.35);border-radius:inherit;z-index:0}
.img-ratio>img,.img-ratio>video,.img-ratio>picture{position:absolute;inset:0;width:100%;height:100%;z-index:1}
.img-ratio>img,.img-ratio>video{object-fit:cover}
.img-ratio>picture img{width:100%;height:100%;object-fit:cover}
.img-ratio-16x9{aspect-ratio:16/9}
.img-ratio-4x3{aspect-ratio:4/3}
.img-ratio-1x1{aspect-ratio:1/1}
.img-ratio-21x9{aspect-ratio:21/9}

/* ===== Utilities ===== */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ===== Responsive ===== */
@media (max-width:959px){
.masthead{justify-content:space-between;padding:1rem 0 .75rem}
.masthead-dateline{display:none}
.masthead-actions{display:none}
.brand-wordmark{font-size:1.5rem}
.brand-tagline{display:none}
.nav-bar{justify-content:space-between;min-height:48px}
.nav-mobile-brand{display:block}
.nav-toggle{display:inline-flex}
.site-nav{display:none;flex-direction:column;gap:0;padding:.5rem 0;width:100%;background:var(--color-surface);border-top:1px solid rgba(121,134,203,.2);max-height:calc(100vh - 48px);overflow-y:auto}
.nav-shell[data-open="true"] .site-nav{display:flex}
.nav-link{width:100%;padding:.875rem 1rem;font-size:1rem;border-bottom:1px solid rgba(121,134,203,.12)}
.nav-link[aria-current="page"]::after{left:1rem;right:auto;top:0;bottom:0;width:3px;height:auto}
.grid-3{grid-template-columns:1fr 1fr}
.footer-main{grid-template-columns:1fr;gap:2rem;padding:3rem 0 2rem}
.footer-meta-inner{flex-direction:column;text-align:center}
}
@media (max-width:767px){
.container{width:min(100% - 1.5rem,var(--container))}
.section{padding:3rem 0}
.section-head{flex-direction:column;align-items:flex-start;gap:1rem}
.page-hero{padding:2.5rem 0 2rem}
.page-hero-inner{grid-template-columns:1fr;gap:1.5rem}
.grid-2,.grid-3{grid-template-columns:1fr}
.bento-card{grid-column:span 12}
.bento-wide{grid-column:span 12}
.hero-scale{display:none}
.footer-nav{grid-template-columns:1fr}
.data-row{grid-template-columns:1fr;gap:.5rem}
}

/* ===== Motion Preferences ===== */
@media (prefers-reduced-motion:reduce){
html{scroll-behavior:auto}
*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
.header-progress-bar{transition:none}
}