:root,[data-theme=light]{--bg:#fff;--bg-alt:#f7fafa;--text:#1a2a2a;--text-secondary:#4a5e5e;--accent:#0d9488;--accent-hover:#0f766e;--border:#e0e7e7;--card-bg:#fff;--card-shadow:0 1px 3px #0000000f;--nav-bg:#ffffffeb}[data-theme=dark]{--bg:#0f1a1a;--bg-alt:#162222;--text:#e0ecec;--text-secondary:#94b0b0;--accent:#2dd4bf;--accent-hover:#5eead4;--border:#243636;--card-bg:#1a2c2c;--card-shadow:0 1px 3px #0000004d;--nav-bg:#0f1a1aeb}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;scroll-padding-top:5rem}body{color:var(--text);background:var(--bg);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;font-size:16px;line-height:1.7;transition:background .3s,color .3s}a{color:var(--accent);text-decoration:none;transition:color .2s}a:hover{color:var(--accent-hover)}h1,h2,h3{font-family:"Source Serif 4",Georgia,Songti SC,SimSun,serif;line-height:1.3}.container{max-width:860px;margin:0 auto;padding:0 1.5rem}.skip-link{width:1px;height:1px;position:absolute;top:auto;left:-999px;overflow:hidden}.skip-link:focus{background:var(--card-bg);border:1px solid var(--accent);z-index:200;border-radius:8px;width:auto;height:auto;padding:.5rem 1rem;top:4.5rem;left:1rem}.nav{z-index:100;background:var(--nav-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);position:fixed;top:0;left:0;right:0}.nav-inner{justify-content:space-between;align-items:center;max-width:860px;height:3.5rem;margin:0 auto;padding:0 1.5rem;display:flex}.nav-logo{color:var(--text);font-family:"Source Serif 4",Georgia,serif;font-size:1.1rem;font-weight:600}.nav-logo:hover{color:var(--accent)}.nav-links{align-items:center;gap:1.5rem;display:flex}.nav-links a{color:var(--text-secondary);font-size:.875rem;font-weight:400;transition:color .2s}.nav-links a.active{color:var(--accent);font-weight:500}.nav-links a:hover{color:var(--accent)}.theme-toggle{border:1px solid var(--border);cursor:pointer;color:var(--text-secondary);background:0 0;border-radius:8px;align-items:center;padding:.35rem;transition:color .2s,border-color .2s;display:flex}.theme-toggle:hover{color:var(--accent);border-color:var(--accent)}[data-theme=light] .icon-moon,[data-theme=dark] .icon-sun{display:none}.nav-menu-btn{cursor:pointer;background:0 0;border:none;flex-direction:column;gap:4px;padding:4px;display:none}.nav-menu-btn span{background:var(--text);width:20px;height:2px;transition:transform .3s,opacity .3s;display:block}.nav-menu-btn.open span:first-child{transform:translateY(6px)rotate(45deg)}.nav-menu-btn.open span:nth-child(2){opacity:0}.nav-menu-btn.open span:nth-child(3){transform:translateY(-6px)rotate(-45deg)}.hero{padding:7rem 0 4rem}.hero-grid{grid-template-columns:180px 1fr;align-items:start;gap:2.5rem;display:grid}.hero-photo img{object-fit:cover;border-radius:12px;width:180px;height:180px}.hero-text h1{margin-bottom:.25rem;font-size:2rem}.subtitle{color:var(--accent);margin-bottom:.15rem;font-size:1.1rem;font-weight:500}.affiliation{color:var(--text-secondary);margin-bottom:1rem;font-size:.95rem}.bio{color:var(--text-secondary);margin-bottom:1.25rem}.bio strong{color:var(--text)}.hero-links{flex-wrap:wrap;align-items:flex-start;gap:.75rem;display:flex}.btn{border:1px solid var(--accent);background:var(--accent);color:#fff;box-sizing:border-box;border-radius:8px;padding:.5rem 1.25rem;font-size:.875rem;font-weight:500;line-height:1.5;transition:all .2s;display:inline-block}.btn:hover{background:var(--accent-hover);border-color:var(--accent-hover);color:#fff}.btn-outline{color:var(--accent);background:0 0}.btn-outline:hover{background:var(--accent);color:#fff}.section{padding:4rem 0}.section-alt{background:var(--bg-alt)}.section h2{border-bottom:2px solid var(--accent);margin-bottom:1.25rem;padding-bottom:.5rem;font-size:1.6rem;display:inline-block}.news-list{list-style:none}.cv-item{align-items:baseline;gap:1.5rem;margin-bottom:.75rem;display:flex}.cv-date{min-width:130px;color:var(--text-secondary);flex-shrink:0;font-size:.85rem}.cv-detail{font-size:.95rem}.pub-year{color:var(--accent);margin-top:1.5rem;margin-bottom:.75rem;font-family:"Source Serif 4",Georgia,serif;font-size:1.2rem;font-weight:600}.pub-list{flex-direction:column;gap:1.25rem;list-style:none;display:flex}.pub-item{border-left:3px solid var(--border);flex-direction:column;gap:.2rem;padding-left:1rem;transition:border-color .2s;display:flex}.pub-item:hover{border-left-color:var(--accent)}.pub-title{font-size:.975rem;font-weight:500}.pub-legend{color:var(--text-secondary);margin-bottom:.75rem;font-size:.85rem;font-style:italic}.pub-authors{color:var(--text-secondary);font-size:.875rem}.author-me{color:var(--accent);font-weight:700}.corresponding-mark{vertical-align:super;margin-left:1px;font-size:.7em;line-height:0}.pub-legend .corresponding-mark{margin-left:0;margin-right:4px}.pub-venue{color:var(--text-secondary);font-size:.85rem;font-style:italic}.venue-top{color:var(--accent);font-weight:700}.pub-links{margin-top:.15rem;font-size:.85rem}.pub-links a{font-weight:500}.project-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.25rem;display:grid}.project-card{background:var(--card-bg);border:1px solid var(--border);box-shadow:var(--card-shadow);color:var(--text);border-radius:10px;flex-direction:column;gap:.35rem;padding:1.5rem;transition:box-shadow .2s,border-color .2s;display:flex}.project-card:hover{border-color:var(--accent);color:var(--text);box-shadow:0 4px 12px #0d94881a}.project-eyebrow{letter-spacing:.04em;text-transform:uppercase;color:var(--accent);font-size:.75rem;font-weight:500}.project-name{font-size:1.05rem;font-weight:600}.project-arrow{color:var(--text-secondary);font-weight:400}.project-description{color:var(--text-secondary);flex:1;font-size:.9rem}.project-meta{color:var(--text-secondary);margin-top:.25rem;font-size:.8rem}.projects-more{margin-top:1.5rem}.text-link{font-size:.875rem;font-weight:500}.back-to-top{border:1px solid var(--border);background:var(--card-bg);width:40px;height:40px;color:var(--text-secondary);cursor:pointer;opacity:0;pointer-events:none;box-shadow:var(--card-shadow);z-index:50;border-radius:50%;justify-content:center;align-items:center;transition:opacity .3s,color .2s,border-color .2s;display:flex;position:fixed;bottom:2rem;right:2rem}.back-to-top.visible{opacity:1;pointer-events:auto}.back-to-top:hover{color:var(--accent);border-color:var(--accent)}.footer{text-align:center;color:var(--text-secondary);border-top:1px solid var(--border);padding:2rem 0;font-size:.8rem}.footer-links{margin-bottom:.25rem}@media (max-width:768px){.nav-links{background:var(--nav-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);flex-direction:column;align-items:flex-start;gap:.75rem;padding:1rem 1.5rem;display:none;position:absolute;top:3.5rem;left:0;right:0}.nav-links.open,.nav-menu-btn{display:flex}.hero{padding:5.5rem 0 3rem}.hero-grid{grid-template-columns:1fr}.hero-photo{justify-self:center}.hero-text h1{font-size:1.6rem}.cv-item{flex-direction:column;gap:.25rem}.cv-date{min-width:auto}}