:root{color-scheme:dark;--ink: #0a0e14;--ink-2: #0e141c;--surface: #121a24;--surface-2: #16202c;--line: #22303f;--line-strong: #2e4154;--text: #e8eef4;--text-2: #9fb0c0;--text-3: #64748b;--accent: #45d6c2;--accent-dim: rgba(69, 214, 194, .14);--accent-2: #7c9bff;--nav-bg: rgba(10, 14, 20, .82);--grid-line: rgba(255, 255, 255, .04);--eyebrow-bg: rgba(18, 26, 36, .5);--on-accent: #06231f;--r-sm: 6px;--r-md: 12px;--r-lg: 20px;--font-display: "Space Grotesk", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;--font-body: "Inter", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;--font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;--nav-h: 68px;--container: 1120px;--section-gap: 112px}html[data-theme=light]{color-scheme:light;--ink: #f6f8fb;--ink-2: #eef2f7;--surface: #ffffff;--surface-2: #f1f5f9;--line: #dfe6ee;--line-strong: #c3cfdc;--text: #0f172a;--text-2: #475569;--text-3: #8aa0b4;--accent: #0e9384;--accent-dim: rgba(14, 147, 132, .14);--accent-2: #4c63d6;--nav-bg: rgba(255, 255, 255, .85);--grid-line: rgba(15, 23, 42, .05);--eyebrow-bg: rgba(255, 255, 255, .7);--on-accent: #ffffff}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 16px)}body{font-family:var(--font-body);background:var(--ink);color:var(--text);line-height:1.75;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden;transition:background-color .3s ease,color .3s ease}::selection{background:var(--accent);color:var(--ink)}a{color:inherit;text-decoration:none}.mono{font-family:var(--font-mono);letter-spacing:.02em}:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}.section{padding:var(--section-gap) 0;position:relative}.section:nth-of-type(2n){background:linear-gradient(180deg,var(--ink) 0%,var(--ink-2) 100%)}.section-inner{max-width:var(--container);margin:0 auto;padding:0 24px}@media (max-width: 720px){:root{--section-gap: 72px}.section-inner{padding:0 20px}}.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease-out,transform .6s ease-out}.reveal.is-visible{opacity:1;transform:none}@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}.reveal{opacity:1;transform:none;transition:none}}.section-head{margin-bottom:48px}.section-eyebrow{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--accent-2);margin-bottom:14px}.section-eyebrow-index,.section-eyebrow-en{color:var(--text-3)}.section-eyebrow:after{content:"";flex:1;height:1px;max-width:220px;background:linear-gradient(90deg,var(--line),transparent)}.section-title{font-family:var(--font-display);font-size:clamp(30px,5vw,48px);font-weight:600;line-height:1.1;letter-spacing:-.01em}.section-title-en{font-family:var(--font-mono);font-size:.42em;font-weight:400;color:var(--text-3);margin-left:14px;vertical-align:.35em}.nav{position:fixed;inset:0 0 auto 0;z-index:100;height:var(--nav-h);transition:background .25s ease,border-color .25s ease,backdrop-filter .25s ease;border-bottom:1px solid transparent}.nav.is-scrolled{background:var(--nav-bg);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom-color:var(--line)}.nav-inner{max-width:var(--container);margin:0 auto;height:100%;padding:0 24px;display:flex;align-items:center;justify-content:space-between;gap:24px}.nav-brand{display:flex;align-items:center;gap:12px}.nav-brand-text{font-family:var(--font-display);font-weight:700;font-size:19px;letter-spacing:.02em}.nav-brand-sub{font-family:var(--font-mono);font-size:11px;color:var(--text-3);padding:3px 8px;border:1px solid var(--line);border-radius:var(--r-sm)}.nav-links{display:flex;gap:6px}.nav-link{display:inline-flex;align-items:center;padding:8px 12px;border-radius:var(--r-sm);color:var(--text-2);font-size:14px;transition:color .2s ease,background .2s ease}.nav-link-label{font-size:14px}.nav-link:hover{color:var(--text);background:var(--surface)}.nav-actions{display:flex;align-items:center;gap:10px}.lang-switch{display:inline-flex;align-items:center;gap:2px;padding:3px;border:1px solid var(--line);border-radius:8px;background:var(--surface)}.lang-btn{font-family:var(--font-mono);font-size:12px;padding:4px 9px;border:none;border-radius:6px;background:transparent;color:var(--text-3);cursor:pointer;transition:color .2s ease,background .2s ease}.lang-btn:hover{color:var(--text)}.lang-btn.is-active{background:var(--accent);color:var(--on-accent)}.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:8px;border:1px solid var(--line);background:transparent;color:var(--text-2);cursor:pointer;transition:color .2s,border-color .2s,transform .2s}.icon-btn:hover{color:var(--accent);border-color:var(--line-strong);transform:translateY(-1px)}.nav-gh{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:8px;border:1px solid var(--line);color:var(--text-2);transition:color .2s,border-color .2s,transform .2s}.nav-gh:hover{color:var(--accent);border-color:var(--line-strong);transform:translateY(-1px)}.nav-toggle{display:none;flex-direction:column;gap:5px;width:36px;height:36px;align-items:center;justify-content:center;background:none;border:1px solid var(--line);border-radius:8px;cursor:pointer}.nav-toggle span{width:16px;height:1.6px;background:var(--text-2);transition:transform .25s ease,opacity .25s ease}.nav-toggle.is-open span:first-child{transform:translateY(3.3px) rotate(45deg)}.nav-toggle.is-open span:last-child{transform:translateY(-3.3px) rotate(-45deg)}.nav-mobile{display:none;flex-direction:column;background:var(--ink-2);border-bottom:1px solid var(--line);padding:8px 20px 20px}@media (max-width: 820px){.nav-links{display:none}.nav-toggle,.nav-mobile.is-open{display:flex}.nav-mobile-link{display:block;padding:12px 4px;border-bottom:1px solid var(--line);color:var(--text);font-size:15px}}.hero{position:relative;min-height:100vh;display:flex;flex-direction:column;justify-content:center;overflow:hidden;padding:calc(var(--nav-h) + 40px) 0 40px}.hero-grid{position:absolute;top:0;right:0;bottom:0;left:0;background-image:linear-gradient(var(--grid-line) 1px,transparent 1px),linear-gradient(90deg,var(--grid-line) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(ellipse 90% 70% at 50% 40%,black 30%,transparent 75%);-webkit-mask-image:radial-gradient(ellipse 90% 70% at 50% 40%,black 30%,transparent 75%)}.hero-inner{position:relative;max-width:var(--container);margin:0 auto;width:100%;padding:0 24px}.hero-eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:13px;color:var(--text-2);margin-bottom:28px;border:1px solid var(--line);padding:7px 14px;border-radius:100px;background:var(--eyebrow-bg)}.hero-eyebrow .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px var(--accent);animation:pulse 2.4s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.82)}}.hero-title{font-family:var(--font-display);font-size:clamp(52px,11vw,128px);font-weight:700;line-height:1.02;letter-spacing:-.02em;display:flex;align-items:baseline}.hero-title-dot{color:var(--accent);text-shadow:0 0 24px var(--accent-dim);padding:0 6px}.hero-tagline{margin-top:20px;font-size:clamp(17px,2.4vw,22px);color:var(--text-2);display:flex;align-items:baseline;gap:14px;flex-wrap:wrap}.hero-tagline-sep{color:var(--text-3);font-family:var(--font-mono)}.hero-desc{margin-top:16px;max-width:520px;color:var(--text-2);font-size:15.5px}.hero-actions{margin-top:36px;display:flex;gap:14px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;gap:10px;padding:12px 22px;border-radius:var(--r-sm);font-size:14.5px;font-weight:500;transition:transform .2s ease,background .2s ease,border-color .2s ease,box-shadow .2s ease}.btn-primary{background:var(--accent);color:var(--on-accent)}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 30px var(--accent-dim)}.btn-ghost{border:1px solid var(--line-strong);color:var(--text)}.btn-ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}.hero-stats{margin-top:56px;display:flex;gap:40px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:24px;max-width:640px}.hero-stat{display:flex;flex-direction:column;gap:4px}.hero-stat-value{font-size:14px;color:var(--text)}.hero-stat-label{font-size:12px;color:var(--text-3)}.hero-signal{position:absolute;left:0;right:0;bottom:0;height:150px;pointer-events:none;opacity:.9}.hero-signal-svg{width:100%;height:100%}.hero-signal-path{fill:none;stroke-width:1.5;stroke-linecap:round;stroke-dasharray:1400;stroke-dashoffset:1400;animation:draw 2.6s ease forwards}.hero-signal-path-a{stroke:var(--accent);opacity:.85;filter:drop-shadow(0 0 6px var(--accent-dim))}.hero-signal-path-b{stroke:var(--accent-2);opacity:.5;animation-delay:.5s}.hero-signal-dot{fill:var(--accent);opacity:0;animation:fadeIn .4s ease 2.4s forwards;filter:drop-shadow(0 0 8px var(--accent))}@keyframes draw{to{stroke-dashoffset:0}}@keyframes fadeIn{to{opacity:1}}@media (prefers-reduced-motion: reduce){.hero-signal-path{animation:none;stroke-dashoffset:0}.hero-signal-dot{animation:none;opacity:1}.hero-eyebrow .dot{animation:none}}@media (max-width: 720px){.hero{min-height:auto;padding-top:calc(var(--nav-h) + 48px)}.hero-stats{gap:24px}}.project-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}@media (max-width: 820px){.project-grid{grid-template-columns:1fr}}.card{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:28px;overflow:hidden;transition:transform .25s ease,border-color .25s ease,background .25s ease}.card:hover{transform:translateY(-3px);border-color:var(--line-strong);background:var(--surface-2)}.card-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}.card-index{font-size:13px;color:var(--accent)}.card-status{font-size:11px;color:var(--text-3)}.card-title{font-family:var(--font-display);font-size:21px;font-weight:600;margin-bottom:12px}.card-corner{position:absolute;top:0;right:0;width:46px;height:46px;background:linear-gradient(225deg,var(--accent-dim),transparent 70%);border-bottom-left-radius:var(--r-md);opacity:0;transition:opacity .3s ease}.card:hover .card-corner{opacity:1}.md-p{color:var(--text-2);font-size:15px;margin-bottom:10px}.md-p:last-child{margin-bottom:0}.md-list{list-style:none;margin-top:10px;display:flex;flex-direction:column;gap:7px}.md-li{color:var(--text-2);font-size:14.5px;position:relative;padding-left:18px}.md-li:before{content:"▸";position:absolute;left:0;color:var(--accent);font-size:12px;top:1px}.md-link{color:var(--accent);border-bottom:1px solid transparent;transition:border-color .2s ease,color .2s ease;word-break:break-all}.md-link:hover{border-bottom-color:var(--accent)}.md-link-arrow{font-size:.85em;margin-left:3px;opacity:.7}.md-strong{color:var(--text);font-weight:600}.md-code{font-family:var(--font-mono);font-size:.88em;background:var(--ink-2);border:1px solid var(--line);border-radius:4px;padding:1px 6px;color:var(--accent)}.md-quote{border-left:2px solid var(--accent);padding:4px 0 4px 16px;color:var(--text-3);font-size:15px}.empty{border:1.5px dashed var(--line-strong);border-radius:var(--r-md);padding:48px 32px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:12px}.empty-tag{font-size:12px;color:var(--accent-2);border:1px solid var(--line);padding:4px 12px;border-radius:100px;background:var(--ink-2)}.empty-text{color:var(--text-3);font-size:15px}.empty-text .md-p{margin:0;color:var(--text-3)}.empty-text .md-quote{border-left-color:var(--line-strong);color:var(--text-3)}.about-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:start}@media (max-width: 820px){.about-grid{grid-template-columns:1fr}}.about-body .md-p{font-size:16px;margin-bottom:14px}.about-meta{border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);overflow:hidden}.about-meta-item{display:flex;justify-content:space-between;align-items:baseline;gap:16px;padding:16px 20px;border-bottom:1px solid var(--line)}.about-meta-item:last-child{border-bottom:none}.about-meta-label{font-size:12px;color:var(--text-3);white-space:nowrap}.about-meta-value{font-size:14px;color:var(--text);text-align:right;word-break:break-all}.about-meta-value a:hover{color:var(--accent)}.footer{border-top:1px solid var(--line);background:var(--ink-2);margin-top:40px}.footer-inner{max-width:var(--container);margin:0 auto;padding:56px 24px 40px;display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap}.footer-brand{display:flex;align-items:center;gap:16px}.footer-brand-text{display:flex;flex-direction:column}.footer-brand-name{font-family:var(--font-display);font-size:22px;font-weight:700}.footer-brand-sub{font-size:13px;color:var(--text-3)}.footer-links{display:flex;gap:56px;flex-wrap:wrap}.footer-col{display:flex;flex-direction:column;gap:10px}.footer-col-title{font-size:11px;color:var(--text-3);margin-bottom:6px}.footer-link{font-size:14px;color:var(--text-2);transition:color .2s ease}.footer-link:hover{color:var(--accent)}.footer-link-static{cursor:default}.footer-bottom{max-width:var(--container);margin:0 auto;padding:20px 24px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12px;color:var(--text-3)}@media (max-width: 720px){.footer-inner{flex-direction:column;padding-top:40px}}