:root{--k-cyan: #22d3ee;--k-indigo: #6366f1;--k-violet: #a855f7;--k-accent: var(--k-cyan);--k-accent-2: var(--k-indigo);--k-accent-3: var(--k-violet);--k-grad: linear-gradient(112deg, #22d3ee 0%, #6366f1 52%, #a855f7 100%);--k-grad-soft: linear-gradient(112deg, rgba(34, 211, 238, .16) 0%, rgba(99, 102, 241, .16) 52%, rgba(168, 85, 247, .16) 100%);--k-grad-line: linear-gradient(90deg, transparent, rgba(34, 211, 238, .55), rgba(168, 85, 247, .55), transparent);--k-ok: #10b981;--k-warn: #f59e0b;--k-danger: #ef4444;--k-info: #38bdf8;--k-bg: #070b14;--k-bg-2: #0b111d;--k-surface: #0f1522;--k-surface-2: #1a2233;--k-surface-glass: rgba(20, 28, 44, .58);--k-surface-glass-2: rgba(26, 34, 51, .72);--k-border: rgba(148, 163, 184, .16);--k-border-strong: rgba(148, 163, 184, .28);--k-text: #f1f5f9;--k-text-dim: #94a3b8;--k-text-faint: #64748b;--k-text-invert: #0b1220;--k-shadow-sm: 0 2px 8px rgba(2, 6, 16, .35);--k-shadow: 0 12px 32px -12px rgba(2, 6, 16, .7);--k-shadow-lg: 0 28px 70px -24px 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.5rem;--k-sp-3: .75rem;--k-sp-4: 1rem;--k-sp-5: 1.5rem;--k-sp-6: 2rem;--k-sp-7: 3rem;--k-sp-8: 4rem;--k-sp-9: 6rem;--k-r-sm: 8px;--k-r: 12px;--k-r-lg: 16px;--k-r-xl: 22px;--k-r-pill: 999px;--k-ease: cubic-bezier(.2, .8, .2, 1);--k-t-fast: .16s;--k-t: .24s;--k-t-slow: .34s;--k-max: 1180px;--k-nav-h: 68px;--k-nav-h-sm: 56px}[data-theme="light"]{--k-bg: #f7f9fc;--k-bg-2: #eef2f8;--k-surface: #ffffff;--k-surface-2: #f2f5fa;--k-surface-glass: rgba(255, 255, 255, .74);--k-surface-glass-2: rgba(255, 255, 255, .88);--k-border: rgba(11, 18, 32, .1);--k-border-strong: rgba(11, 18, 32, .18);--k-text: #0b1220;--k-text-dim: #475569;--k-text-faint: #64748b;--k-text-invert: #ffffff;--k-accent: #0891b2;--k-grad: linear-gradient(112deg, #0891b2 0%, #4f46e5 52%, #9333ea 100%);--k-grad-soft: linear-gradient(112deg, rgba(8, 145, 178, .1) 0%, rgba(79, 70, 229, .1) 52%, rgba(147, 51, 234, .1) 100%);--k-grad-line: linear-gradient(90deg, transparent, rgba(8, 145, 178, .4), rgba(147, 51, 234, .4), transparent);--k-shadow-sm: 0 1px 3px rgba(11, 18, 32, .07);--k-shadow: 0 10px 28px -14px rgba(11, 18, 32, .18);--k-shadow-lg: 0 26px 60px -26px rgba(11, 18, 32, .24);--k-glow: 0 0 0 1px rgba(8, 145, 178, .3), 0 12px 34px -16px rgba(8, 145, 178, .35);--k-glow-violet: 0 0 0 1px rgba(147, 51, 234, .26), 0 12px 34px -16px rgba(147, 51, 234, .3);--k-grid-line: rgba(11, 18, 32, .05);--k-hero-halo-1: rgba(8, 145, 178, .12);--k-hero-halo-2: rgba(147, 51, 234, .1);--k-code-bg: rgba(11, 18, 32, .04)}*,*::before,*::after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--k-nav-h) + 16px)}body{margin:0;background-color:var(--k-bg);color:var(--k-text);font-family:var(--k-font-body);font-size:var(--k-fs-body);line-height:1.7;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden;transition:background-color var(--k-t) var(--k-ease),color var(--k-t) var(--k-ease)}body::before{content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;background-image:linear-gradient(var(--k-grid-line) 1px, transparent 1px),linear-gradient(90deg, var(--k-grid-line) 1px, transparent 1px);background-size:64px 64px, 64px 64px;mask-image:radial-gradient(ellipse 90% 60% at 50% 0%, #000 35%, transparent 100%);-webkit-mask-image:radial-gradient(ellipse 90% 60% at 50% 0%, #000 35%, transparent 100%)}body::after{content:"";position:fixed;inset:0;z-index:-3;pointer-events:none;background:radial-gradient(46rem 30rem at 12% -6%, var(--k-hero-halo-1), transparent 62%),radial-gradient(40rem 28rem at 92% 6%, var(--k-hero-halo-2), transparent 60%)}h1,h2,h3,h4,h5{font-family:var(--k-font-display);font-weight:700;line-height:1.18;letter-spacing:-.02em;margin:0 0 var(--k-sp-3);color:var(--k-text)}h1{font-size:var(--k-fs-h1)}h2{font-size:var(--k-fs-h2)}h3{font-size:var(--k-fs-h3);letter-spacing:-.01em}p{margin:0 0 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transparent)}.k-grid{display:grid;gap:var(--k-sp-5)}.k-grid--2{grid-template-columns:repeat(2, minmax(0, 1fr))}.k-grid--3{grid-template-columns:repeat(3, minmax(0, 1fr))}.k-grid--4{grid-template-columns:repeat(4, minmax(0, 1fr))}@media (max-width: 1023px){.k-grid--3,.k-grid--4{grid-template-columns:repeat(2, minmax(0, 1fr))}}@media (max-width: 700px){.k-grid--2,.k-grid--3,.k-grid--4{grid-template-columns:minmax(0, 1fr)}}html[data-lang="en"] .i18n[lang="zh"],html[data-lang="zh"] .i18n[lang="en"]{display:none !important}html[data-lang="zh"] body{font-family:"Noto Sans", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;letter-spacing:.01em}html[data-lang="zh"] h1,html[data-lang="zh"] h2,html[data-lang="zh"] h3{letter-spacing:-.005em}.k-reveal{opacity:0;transform:translateY(18px);transition:opacity 0.6s var(--k-ease),transform 0.6s var(--k-ease);will-change:opacity, transform}.k-reveal.is-in{opacity:1;transform:none}html.no-js 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1.15rem;border-radius:var(--k-r-pill);border:1px solid var(--k-border-strong);background:var(--btn-bg);color:var(--k-text);font-family:var(--k-font-display);font-size:var(--k-fs-sm);font-weight:600;line-height:1.2;cursor:pointer;backdrop-filter:blur(10px);transition:transform var(--k-t) var(--k-ease),box-shadow var(--k-t) var(--k-ease),border-color var(--k-t) var(--k-ease),color var(--k-t) var(--k-ease)}.k-btn svg{width:1em;height:1em;flex:none}.k-btn:hover{transform:translateY(-2px);border-color:transparent;box-shadow:var(--k-glow);color:var(--k-text)}.k-btn--primary{border-color:transparent;background:var(--k-grad);color:#06121c;box-shadow:0 10px 30px -12px rgba(34,211,238,0.55)}[data-theme="light"] .k-btn--primary{color:#fff}.k-btn--primary:hover{color:#06121c;box-shadow:0 16px 40px -12px rgba(99,102,241,0.6)}[data-theme="light"] .k-btn--primary:hover{color:#fff}.k-btn--sm{padding:.4rem 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var(--k-border-strong);background:var(--k-surface-2);color:var(--k-text-dim);cursor:pointer;transition:color var(--k-t) var(--k-ease),border-color var(--k-t) var(--k-ease),transform var(--k-t) var(--k-ease),box-shadow var(--k-t) var(--k-ease)}.k-icon-btn svg{width:17px;height:17px}.k-icon-btn:hover{color:var(--k-accent);border-color:transparent;box-shadow:var(--k-glow);transform:translateY(-1px)}.k-icon-btn .k-ico-sun{display:none}[data-theme="light"] .k-icon-btn .k-ico-sun{display:block}[data-theme="light"] .k-icon-btn .k-ico-moon{display:none}.k-nav__burger{display:none}@media (max-width: 860px){.k-nav__burger{display:grid}.k-nav__menu{position:fixed;inset:var(--k-nav-h) 0 auto;flex-direction:column;align-items:stretch;gap:0;margin:0;padding:var(--k-sp-3) clamp(1.25rem, 4vw, 2.5rem) var(--k-sp-5);background:var(--k-surface-glass-2);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom:1px solid var(--k-border);box-shadow:var(--k-shadow-lg);transform:translateY(-12px);opacity:0;visibility:hidden;transition:opacity var(--k-t) var(--k-ease),transform var(--k-t) var(--k-ease),visibility var(--k-t) var(--k-ease)}.k-nav__menu.is-open{opacity:1;visibility:visible;transform:none}.k-nav__link{padding:.8rem .25rem;font-size:1.05rem;border-bottom:1px solid var(--k-border)}.k-nav__link::after{display:none}.k-brand__sub{display:none}}.k-footer{position:relative;margin-top:var(--k-sp-7);padding-block:var(--k-sp-6) var(--k-sp-5);background:var(--k-bg-2);border-top:1px solid var(--k-border)}.k-footer::before{content:"";position:absolute;top:-1px;left:0;right:0;height:1px;background:var(--k-grad-line)}.k-footer__inner{display:flex;align-items:center;justify-content:space-between;gap:var(--k-sp-5);flex-wrap:wrap}.k-footer__meta{color:var(--k-text-faint);font-size:var(--k-fs-sm)}.k-social{display:flex;align-items:center;gap:var(--k-sp-2)}.k-social a{width:36px;height:36px;display:grid;place-items:center;border-radius:var(--k-r-pill);border:1px solid var(--k-border);background:var(--k-surface);color:var(--k-text-dim);transition:transform var(--k-t) var(--k-ease),color var(--k-t) var(--k-ease),border-color var(--k-t) var(--k-ease),box-shadow var(--k-t) var(--k-ease)}.k-social a svg{width:17px;height:17px}.k-social a:hover{transform:translateY(-3px);color:var(--k-accent);border-color:transparent;box-shadow:var(--k-glow)}.k-totop{position:fixed;right:clamp(1rem, 3vw, 2rem);bottom:clamp(1rem, 3vw, 2rem);z-index:90;width:42px;height:42px;display:grid;place-items:center;border-radius:var(--k-r-pill);border:1px solid var(--k-border-strong);background:var(--k-surface-glass-2);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);color:var(--k-text-dim);cursor:pointer;opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity var(--k-t) var(--k-ease),transform var(--k-t) var(--k-ease),visibility var(--k-t) var(--k-ease),box-shadow var(--k-t) var(--k-ease)}.k-totop.is-visible{opacity:1;visibility:visible;transform:none}.k-totop:hover{color:var(--k-accent);box-shadow:var(--k-glow)}.k-totop svg{width:18px;height:18px}.k-hero{position:relative;padding-block:clamp(2.5rem, 7vw, 5rem) clamp(2rem, 5vw, 3.5rem);overflow:hidden}.k-hero__inner{display:grid;grid-template-columns:minmax(0, 7fr) minmax(0, 5fr);align-items:center;gap:clamp(2rem, 5vw, 4rem)}.k-hero__badges{display:flex;flex-wrap:wrap;align-items:center;gap:var(--k-sp-2);margin-bottom:var(--k-sp-4)}.k-hero__tag{display:inline-flex;align-items:center;gap:.5rem;padding:.3rem .8rem .3rem .55rem;border-radius:var(--k-r-pill);border:1px solid 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print{html,body{background:#fff !important;color:#111 !important}body::before,body::after{display:none !important}.k-nav,.k-footer,.k-totop,.k-toc,.k-no-print,.k-awardlist__proof,.k-part__tools{display:none !important}.k-with-toc{display:block !important}.k-card,.k-chapter,.k-cvsec,.k-cv__ovcard,.k-cv__pub,.k-other__item{break-inside:avoid;page-break-inside:avoid;background:#fff !important;box-shadow:none !important;border-color:#ddd !important;backdrop-filter:none !important}.k-cvsec__title,.k-tl__what,h1,h2,h3,h4{color:#111 !important}.k-metric__num,.k-teaser__ph-name,.k-chapter__no b{background:none !important;color:#111 !important;-webkit-text-fill-color:#111 !important}a{color:#111 !important;text-decoration:underline}.k-chapter__panel{display:block !important;content-visibility:visible !important}.k-chapter__caret,.k-links,.k-bib{display:none !important}.k-opento{background:#fff !important;border:1px solid #999 !important;border-radius:4px !important;color:#111 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