/* Theme: dark-purple */
:root{--bg:#06060b;--bg2:#14141f;--card:#1a1a2e;--text:#eaeaf0;--text2:#9898b0;--text3:#6b6b80;--accent:#6c63ff;--accent2:#00d4aa;--grad:linear-gradient(135deg,#6c63ff 0%,#00d4aa 100%);--grad-wide:linear-gradient(135deg,#6c63ff 0%,#a855f7 50%,#00d4aa 100%);--border:rgba(255,255,255,0.06);--border2:rgba(255,255,255,0.12);--shadow:0 4px 20px rgba(0,0,0,0.4);--tag-bg:rgba(108,99,255,0.1);--venue-bg:rgba(108,99,255,0.08);--particle-color:108,99,255;--sidebar-bg:linear-gradient(170deg,#080812 0%,#10082a 20%,#1a0e3d 45%,#120a30 65%,#0d0820 85%,#06060b 100%)}

/* ===== Light Mode — Warm Ivory + Soft Indigo ===== */
[data-theme="light"]{
--bg:#f7f6f3;--bg2:#fefefe;--card:#ffffff;
--text:#2c2c35;--text2:#5c5c6e;--text3:#9090a0;
--accent:#5b4fc7;--accent2:#0d9488;
--grad:linear-gradient(135deg,#5b4fc7 0%,#0d9488 100%);
--grad-wide:linear-gradient(135deg,#5b4fc7 0%,#7c5cc7 50%,#0d9488 100%);
--border:rgba(0,0,0,0.07);--border2:rgba(0,0,0,0.13);
--shadow:0 2px 12px rgba(91,79,199,0.08);
--tag-bg:rgba(91,79,199,0.06);--venue-bg:rgba(91,79,199,0.05);
--particle-color:91,79,199;
--sidebar-bg:linear-gradient(170deg,#f9f8f5 0%,#f0ecf7 30%,#ebe5f5 50%,#f0ecf7 70%,#f9f8f5 100%)
}
/* Sidebar light */
[data-theme="light"] .sidebar{box-shadow:1px 0 24px rgba(91,79,199,0.06);border-right-color:rgba(91,79,199,0.08)}
[data-theme="light"] .sidebar::before{background:radial-gradient(ellipse 120% 60% at 20% 10%,rgba(91,79,199,0.07) 0%,transparent 50%),radial-gradient(ellipse 100% 50% at 80% 90%,rgba(13,148,136,0.04) 0%,transparent 50%),none}
[data-theme="light"] .profile-section{border-bottom-color:rgba(91,79,199,0.08)}
[data-theme="light"] .profile-avatar img{border-color:rgba(91,79,199,0.2)}
[data-theme="light"] .profile-avatar::before{opacity:0.25}
[data-theme="light"] .profile-avatar::after{box-shadow:0 0 8px rgba(91,79,199,0.12),0 0 16px rgba(91,79,199,0.04)}
[data-theme="light"] .profile-status{background:rgba(91,79,199,0.05);border-color:rgba(91,79,199,0.1)}
[data-theme="light"] .sidebar-section{border-bottom-color:rgba(91,79,199,0.06)}
[data-theme="light"] .mini-stat{background:rgba(91,79,199,0.04);border-color:rgba(91,79,199,0.06)}
[data-theme="light"] .mini-stat:hover{background:rgba(91,79,199,0.07);border-color:rgba(91,79,199,0.12)}
[data-theme="light"] .tag{background:rgba(91,79,199,0.05);border-color:rgba(91,79,199,0.1);color:#5b4fc7}
[data-theme="light"] .tag.skill{background:rgba(13,148,136,0.06);color:#0d9488;border-color:rgba(13,148,136,0.12)}
[data-theme="light"] .scholar-link{background:rgba(91,79,199,0.05);border-color:rgba(91,79,199,0.1)}
[data-theme="light"] .scholar-link:hover{background:#5b4fc7;box-shadow:0 4px 16px rgba(91,79,199,0.2)}
/* Top nav light */
[data-theme="light"] .top-nav{background:rgba(254,254,254,0.92);border-bottom-color:rgba(0,0,0,0.06)}
[data-theme="light"] .nav-pill:hover{background:rgba(91,79,199,0.04);border-color:rgba(91,79,199,0.08);color:#5b4fc7}
[data-theme="light"] .nav-pill.active,[data-theme="light"] .nav-pill.active:hover{color:#fff;background:var(--grad);box-shadow:0 2px 12px rgba(91,79,199,0.15);text-shadow:none;border-color:transparent}
/* Cards light */
[data-theme="light"] .info-card{background:#fff;border-color:rgba(0,0,0,0.06)}
[data-theme="light"] .info-card:hover{border-color:rgba(91,79,199,0.15)}
[data-theme="light"] .pub-row{background:#fefefe}
[data-theme="light"] .pub-row:hover{border-color:rgba(91,79,199,0.15)}
[data-theme="light"] .pub-row.first-author{border-left-color:#5b4fc7}
[data-theme="light"] .exp-row{background:#fefefe}
[data-theme="light"] .patent-row{background:#fefefe}
[data-theme="light"] .project-card{background:#fff}
[data-theme="light"] .project-card:hover{box-shadow:0 4px 16px rgba(91,79,199,0.08)}
[data-theme="light"] .contact-card{background:#fff}
[data-theme="light"] .contact-card:hover{border-color:rgba(91,79,199,0.15)}
/* Badges light */
[data-theme="light"] .year-badge{background:rgba(91,79,199,0.06);color:#5b4fc7}
[data-theme="light"] .role-badge{background:rgba(91,79,199,0.07);color:#5b4fc7;border-color:rgba(91,79,199,0.12)}
[data-theme="light"] .cite-badge{background:rgba(13,148,136,0.06);color:#0d9488}
[data-theme="light"] .exp-status-badge{background:rgba(13,148,136,0.06);color:#0d9488;border-color:rgba(13,148,136,0.12)}
[data-theme="light"] .exp-status-badge.current{background:rgba(91,79,199,0.07);color:#5b4fc7;border-color:rgba(91,79,199,0.12)}
[data-theme="light"] .filter-btn{border-color:rgba(0,0,0,0.08)}
[data-theme="light"] .filter-btn:hover{border-color:#5b4fc7;color:#5b4fc7}
[data-theme="light"] .filter-btn.active{background:#5b4fc7}
/* Effects light */
[data-theme="light"] #particleCanvas{opacity:0.25}
[data-theme="light"] .theme-toggle{background:rgba(91,79,199,0.06);border-color:rgba(91,79,199,0.12);color:#5b4fc7}
[data-theme="light"] .theme-toggle:hover{background:rgba(91,79,199,0.12);border-color:rgba(91,79,199,0.25)}
[data-theme="light"] .info-card::before,[data-theme="light"] .project-card::before,[data-theme="light"] .contact-card::before,[data-theme="light"] .mini-stat::before{background:radial-gradient(400px circle at var(--mouse-x,50%) var(--mouse-y,50%),rgba(91,79,199,0.04),transparent 40%)}
[data-theme="light"] .pub-row.first-author::after{background:linear-gradient(90deg,transparent,rgba(91,79,199,0.03),transparent)}
[data-theme="light"] .hero-subtitle .typing-cursor{background:#5b4fc7}
[data-theme="light"] .honor-list li::before{color:#5b4fc7}
[data-theme="light"] .exp-details li::before{color:#5b4fc7}
[data-theme="light"] .section-header{border-bottom-color:rgba(0,0,0,0.06)}
[data-theme="light"] .section{border-bottom-color:rgba(0,0,0,0.05)}
[data-theme="light"] .message-form-wrapper{background:#fff}
[data-theme="light"] .msg-field input,[data-theme="light"] .msg-field textarea{background:#f9f9fc;border-color:rgba(0,0,0,0.08)}
[data-theme="light"] .msg-field input:focus,[data-theme="light"] .msg-field textarea:focus{border-color:#5b4fc7;box-shadow:0 0 0 3px rgba(91,79,199,0.08)}
[data-theme="light"] .message-link{background:rgba(13,148,136,0.06);border-color:rgba(13,148,136,0.1);color:#0d9488}
[data-theme="light"] .message-link:hover{background:#0d9488}

/* ===== Shared Styles ===== */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Inter','Noto Sans SC',system-ui,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none;transition:all 0.2s}
a:hover{color:var(--accent2)}

/* Particle Canvas */
#particleCanvas{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:0}

/* App Layout */
.app{display:flex;min-height:100vh;position:relative;z-index:1}

/* ===== Sidebar - Purple Gradient ===== */
.sidebar{width:300px;flex-shrink:0;position:fixed;top:0;left:0;bottom:0;background:var(--sidebar-bg);border-right:1px solid rgba(108,99,255,0.1);overflow-y:auto;z-index:100;display:flex;flex-direction:column;justify-content:center}
.sidebar::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:radial-gradient(ellipse 120% 60% at 20% 10%,rgba(108,99,255,0.18) 0%,transparent 50%),radial-gradient(ellipse 100% 50% at 80% 90%,rgba(168,85,247,0.1) 0%,transparent 50%),radial-gradient(circle at 50% 50%,rgba(0,212,170,0.04) 0%,transparent 40%);pointer-events:none;z-index:0}
.sidebar>*{position:relative;z-index:1}
.sidebar::-webkit-scrollbar{width:4px}
.sidebar::-webkit-scrollbar-track{background:transparent}
.sidebar::-webkit-scrollbar-thumb{background:rgba(108,99,255,0.3);border-radius:4px}
.sidebar::-webkit-scrollbar-thumb:hover{background:var(--accent)}
.sidebar{scrollbar-width:thin;scrollbar-color:rgba(108,99,255,0.3) transparent}
.sidebar-inner{padding:32px 24px}
.profile-section{text-align:center;padding-bottom:24px;border-bottom:1px solid rgba(108,99,255,0.1);margin-bottom:24px}
.profile-avatar{width:96px;height:96px;margin:0 auto 14px;border-radius:50%;position:relative}
.profile-avatar img{width:82px;height:82px;object-fit:cover;border-radius:50%;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);z-index:2;border:2px solid rgba(108,99,255,0.3)}
.avatar-particles{position:absolute;top:0;left:0;width:100%;height:100%;z-index:1;border-radius:50%}
.profile-avatar::before{content:'';position:absolute;inset:2px;border-radius:50%;background:var(--grad-wide);background-size:200% 200%;animation:gradient-shift 3s ease infinite;z-index:0;opacity:0.35}
.profile-avatar::after{content:'';position:absolute;inset:2px;border-radius:50%;box-shadow:0 0 10px rgba(108,99,255,0.2),0 0 20px rgba(108,99,255,0.06);z-index:0;animation:avatar-glow 3s ease-in-out infinite}
.profile-name{font-size:1.5rem;font-weight:800;letter-spacing:-0.5px;background:var(--grad-wide);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;background-size:200% 200%;animation:gradient-shift 4s ease infinite}
.profile-name-en{font-size:0.85rem;color:var(--text3);margin-top:4px;font-weight:400}
.profile-status{display:inline-flex;align-items:center;gap:6px;padding:5px 14px;border-radius:12px;font-size:0.75rem;font-weight:500;background:rgba(108,99,255,0.08);border:1px solid rgba(108,99,255,0.12);color:var(--text2);margin-top:12px}
.status-dot{width:6px;height:6px;border-radius:50%;background:var(--accent2);animation:pulse 2s ease-in-out infinite;box-shadow:0 0 6px rgba(0,212,170,0.4)}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:0.5;transform:scale(1.2)}}

/* ===== Theme Toggle - Sidebar Top Right ===== */
.theme-toggle{position:absolute;top:16px;right:16px;z-index:10;width:36px;height:36px;border-radius:50%;background:rgba(108,99,255,0.1);border:1px solid rgba(108,99,255,0.2);color:var(--text2);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all 0.3s;backdrop-filter:blur(8px)}
.theme-toggle:hover{background:rgba(108,99,255,0.2);color:var(--text);border-color:rgba(108,99,255,0.4);transform:rotate(15deg);box-shadow:0 0 16px rgba(108,99,255,0.2)}

/* Stats */
.sidebar-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:20px 0}
.mini-stat{text-align:center;padding:12px 4px;background:rgba(108,99,255,0.06);border-radius:8px;border:1px solid rgba(108,99,255,0.08);transition:all 0.2s}
.mini-stat:hover{border-color:rgba(108,99,255,0.2);background:rgba(108,99,255,0.1)}
.mini-num{display:block;font-size:1.3rem;font-weight:800;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.mini-label{display:block;font-size:0.65rem;color:var(--text3);text-transform:uppercase;letter-spacing:1px;margin-top:3px}

/* Sidebar Sections */
.sidebar-section{margin-bottom:20px;padding-bottom:20px;border-bottom:1px solid rgba(108,99,255,0.08)}
.sidebar-title{font-size:0.7rem;font-weight:700;text-transform:uppercase;letter-spacing:1.5px;color:var(--text3);margin-bottom:10px}
.tag-list{display:flex;flex-wrap:wrap;gap:6px}
.tag{padding:4px 10px;border-radius:12px;font-size:0.72rem;font-weight:600;background:var(--tag-bg);color:var(--accent);border:1px solid rgba(108,99,255,0.12);transition:all 0.2s}
.tag:hover{background:rgba(108,99,255,0.15);border-color:rgba(108,99,255,0.25)}
.tag.skill{background:rgba(0,212,170,0.08);color:var(--accent2);border-color:rgba(0,212,170,0.15)}
.sidebar-footer{padding-top:16px;margin-top:4px}
.scholar-link{display:block;text-align:center;padding:9px 16px;border-radius:8px;background:rgba(108,99,255,0.08);border:1px solid rgba(108,99,255,0.12);font-size:0.82rem;font-weight:600;color:var(--accent);transition:all 0.2s}
.scholar-link:hover{background:var(--accent);color:#fff;box-shadow:0 4px 16px rgba(108,99,255,0.3)}
.message-link{display:block;text-align:center;padding:9px 16px;border-radius:8px;background:rgba(0,212,170,0.08);border:1px solid rgba(0,212,170,0.12);font-size:0.82rem;font-weight:600;color:var(--accent2);transition:all 0.2s;margin-top:8px}
.message-link:hover{background:var(--accent2);color:#fff;box-shadow:0 4px 16px rgba(0,212,170,0.3)}

/* Main Content */
.main{margin-left:300px;flex:1;min-height:100vh}

/* Top Nav - Pill style */
.top-nav{position:sticky;top:0;z-index:50;background:rgba(20,20,31,0.85);border-bottom:1px solid var(--border);backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px) saturate(180%)}
.nav-inner{display:flex;gap:6px;padding:10px 32px;align-items:center;overflow-x:auto}
.nav-inner::-webkit-scrollbar{height:0}
.nav-pill{display:inline-flex;align-items:center;gap:6px;padding:7px 16px;border-radius:20px;font-size:0.8rem;font-weight:600;color:var(--text2);background:transparent;border:1px solid transparent;transition:all 0.25s;cursor:pointer;text-decoration:none;white-space:nowrap;flex-shrink:0}
.nav-pill:hover{color:var(--text);background:rgba(108,99,255,0.06);border-color:var(--border)}
.nav-pill.active,.nav-pill.active:hover{color:#fff;background:var(--grad);border-color:transparent;box-shadow:0 2px 12px rgba(108,99,255,0.3)}
.nav-icon{font-size:0.9rem}
.nav-label{white-space:nowrap}
.nav-badge{display:inline-flex;align-items:center;justify-content:center;min-width:18px;height:18px;padding:0 5px;border-radius:9px;font-size:0.6rem;font-weight:700;background:rgba(255,255,255,0.2);color:#fff;margin-left:2px}
.nav-pill:not(.active) .nav-badge{background:var(--accent);color:#fff}

/* Sections */
.section{padding:40px 32px;border-bottom:1px solid var(--border);scroll-margin-top:60px}
.section:last-child{border-bottom:none}
.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;padding-bottom:12px;border-bottom:1px solid var(--border)}
#about .section-header{display:none}
.section-title{font-size:1.3rem;font-weight:800;letter-spacing:-0.5px}

/* Hero / About */
.hero-intro{margin-bottom:32px}
.hero-greeting{font-size:0.85rem;color:var(--text3);margin-bottom:8px;font-weight:500}
.hero-name{font-size:2.4rem;font-weight:900;letter-spacing:-1px;margin-bottom:8px;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-subtitle{font-size:1rem;color:var(--text2);margin-bottom:24px;font-weight:400}
.intro-text p{font-size:0.92rem;color:var(--text2);line-height:1.8;margin-bottom:12px}
.intro-text p:last-child{margin-bottom:0}
.intro-text strong{color:var(--text);font-weight:600}

/* About Grid */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.about-right{display:flex;flex-direction:column;gap:16px}
.about-right .info-card{flex:1}
.info-card{padding:20px;border-radius:10px;background:var(--card);border:1px solid var(--border);transition:all 0.2s}
.info-card:hover{border-color:var(--border2)}
.card-title{font-size:0.95rem;font-weight:700;margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--border)}
.edu-row{display:flex;gap:10px;padding:10px 0;border-bottom:1px solid var(--border)}
.edu-row:last-child{border-bottom:none;padding-bottom:0}
.edu-row:first-child{padding-top:0}
.edu-icon{font-size:1.3rem;flex-shrink:0}
.edu-school{font-size:0.85rem;font-weight:700;margin-bottom:2px}
.edu-degree{font-size:0.78rem;color:var(--accent);font-weight:500}
.edu-time{font-size:0.7rem;color:var(--text3);font-family:'JetBrains Mono',monospace}
.edu-detail{font-size:0.72rem;color:var(--text2);margin-top:2px}
.honor-list{list-style:none;display:flex;flex-direction:column;gap:6px}
.honor-list li{font-size:0.82rem;color:var(--text2);padding-left:14px;position:relative}
.honor-list li::before{content:'✦';position:absolute;left:0;color:var(--accent);font-size:0.55rem}

/* Publications */
.pub-filter{display:flex;gap:5px}
.filter-btn{padding:4px 14px;border-radius:14px;font-size:0.7rem;font-weight:600;background:transparent;color:var(--text2);border:1px solid var(--border);cursor:pointer;transition:all 0.2s;font-family:inherit}
.filter-btn:hover{border-color:var(--accent);color:var(--accent)}
.filter-btn.active{background:var(--accent);color:#fff;border-color:var(--accent)}
.pub-list{display:flex;flex-direction:column;gap:6px}
.pub-row{display:flex;gap:14px;padding:14px 16px;border-radius:8px;background:var(--card);border:1px solid var(--border);transition:all 0.2s;align-items:flex-start}
.pub-row:hover{border-color:var(--border2)}
.pub-row.first-author{border-left:3px solid var(--accent)}
.pub-row.hidden,.exp-row.hidden{display:none}
.pub-year-col{flex-shrink:0;padding-top:2px}
.year-badge{display:inline-flex;align-items:center;justify-content:center;width:42px;height:26px;border-radius:5px;background:rgba(108,99,255,0.08);color:var(--accent);font-weight:700;font-size:0.75rem;font-family:'JetBrains Mono',monospace}
.pub-main-col{flex:1;min-width:0}
.pub-top-row{display:flex;align-items:flex-start;justify-content:space-between;gap:10px;margin-bottom:4px}
.pub-title{font-size:0.88rem;font-weight:600;line-height:1.4;flex:1}
.pub-badges{display:flex;align-items:center;gap:5px;flex-shrink:0;flex-wrap:wrap;justify-content:flex-end}
.role-badge{padding:2px 7px;border-radius:8px;font-size:0.62rem;font-weight:700;background:rgba(108,99,255,0.12);color:var(--accent);border:1px solid rgba(108,99,255,0.2);white-space:nowrap}
.venue-badge{padding:2px 7px;border-radius:8px;font-size:0.62rem;font-weight:700;background:var(--venue-bg);color:var(--accent);font-family:'JetBrains Mono',monospace}
.cite-badge{padding:2px 7px;border-radius:8px;font-size:0.62rem;font-weight:600;background:rgba(0,212,170,0.08);color:var(--accent2)}
.pub-link{font-size:0.82rem;color:var(--accent);font-weight:700}
.pub-authors{font-size:0.78rem;color:var(--text2);margin-bottom:2px}
.pub-authors strong{color:var(--accent);font-weight:600}
.pub-venue{font-size:0.75rem;color:var(--text3);font-style:italic}

/* Experience */
.exp-row{display:flex;gap:24px;padding:16px;border-radius:8px;background:var(--card);border:1px solid var(--border);margin-bottom:10px;transition:all 0.2s}
.exp-row:hover{border-color:var(--border2)}
.exp-left{flex:0 0 260px}
.exp-company{font-size:0.95rem;font-weight:700;margin-bottom:4px}
.exp-role{font-size:0.82rem;color:var(--accent);font-weight:500;margin-bottom:4px}
.exp-time{font-size:0.75rem;color:var(--text3);font-family:'JetBrains Mono',monospace}
.exp-right{flex:1}
.exp-status-badge{display:inline-block;padding:3px 10px;border-radius:10px;font-size:0.68rem;font-weight:700;background:rgba(0,212,170,0.1);color:var(--accent2);border:1px solid rgba(0,212,170,0.2);margin-bottom:10px}
.exp-status-badge.current{background:rgba(108,99,255,0.15);color:var(--accent);border-color:rgba(108,99,255,0.2)}
.exp-details{list-style:none;display:flex;flex-direction:column;gap:6px}
.exp-details li{font-size:0.82rem;color:var(--text2);padding-left:14px;position:relative;line-height:1.6}
.exp-details li::before{content:'›';position:absolute;left:0;color:var(--accent);font-weight:700}
.exp-filter{display:flex;gap:5px}

/* Patents */
.patent-list{display:flex;flex-direction:column;gap:8px}
.patent-row{display:flex;align-items:center;gap:12px;padding:14px 16px;border-radius:8px;background:var(--card);border:1px solid var(--border);transition:all 0.2s}
.patent-row:hover{border-color:var(--border2)}
.patent-icon{font-size:1.3rem;flex-shrink:0}
.patent-info{flex:1;min-width:0}
.patent-text{font-size:0.88rem;font-weight:500;display:block}
.patent-desc{font-size:0.75rem;color:var(--text3);display:block;margin-top:4px;line-height:1.5}

/* Projects */
.project-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:16px}
.project-card{padding:20px;border-radius:10px;background:var(--card);border:1px solid var(--border);transition:all 0.2s}
.project-card:hover{border-color:var(--border2);transform:translateY(-2px);box-shadow:var(--shadow)}
.project-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.project-name{font-size:0.95rem;font-weight:700}
.project-status{padding:2px 8px;border-radius:10px;font-size:0.65rem;font-weight:600;background:rgba(0,212,170,0.1);color:var(--accent2);border:1px solid rgba(0,212,170,0.2)}
.project-desc{font-size:0.82rem;color:var(--text2);line-height:1.6;margin-bottom:12px}
.project-tech{display:flex;flex-wrap:wrap;gap:4px;margin-bottom:12px}
.project-links{display:flex;gap:8px}
.project-link{padding:4px 12px;border-radius:6px;font-size:0.75rem;font-weight:600;background:var(--tag-bg);color:var(--accent);border:1px solid var(--border);transition:all 0.2s}
.project-link:hover{background:var(--accent);color:#fff}
.project-link.demo{background:rgba(0,212,170,0.08);color:var(--accent2);border-color:rgba(0,212,170,0.15)}
.project-link.demo:hover{background:var(--accent2);color:#fff}

/* Contact */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px}
.contact-card{text-align:center;padding:20px 16px;border-radius:10px;background:var(--card);border:1px solid var(--border);transition:all 0.2s}
.contact-card:hover{border-color:var(--border2);transform:translateY(-2px)}
.contact-icon{font-size:1.5rem;margin-bottom:8px}
.contact-label{font-size:0.68rem;color:var(--text3);text-transform:uppercase;letter-spacing:1px;font-weight:600;margin-bottom:4px}
.contact-value{font-size:0.85rem;font-weight:500}
.contact-note{font-size:0.72rem;color:var(--text3);margin-top:4px}

/* ===== Message Form ===== */
.message-form-wrapper{margin-top:24px;padding:24px;border-radius:12px;background:var(--card);border:1px solid var(--border)}
.message-form-title{font-size:1.1rem;font-weight:700;margin-bottom:6px}
.message-form-desc{font-size:0.82rem;color:var(--text3);margin-bottom:20px;line-height:1.5}
.msg-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.msg-field{margin-bottom:14px}
.msg-field label{display:block;font-size:0.78rem;font-weight:600;color:var(--text2);margin-bottom:5px}
.msg-field input,.msg-field textarea{width:100%;padding:10px 14px;border-radius:8px;border:1px solid var(--border);background:var(--bg);color:var(--text);font-size:0.88rem;font-family:inherit;transition:border-color 0.2s;resize:vertical}
.msg-field input:focus,.msg-field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(108,99,255,0.1)}
.msg-field input::placeholder,.msg-field textarea::placeholder{color:var(--text3)}
.msg-actions{display:flex;align-items:center;gap:10px;justify-content:flex-end}
.msg-counter{font-size:0.72rem;color:var(--text3);margin-right:auto}
.msg-btn-clear{padding:8px 18px;border-radius:8px;font-size:0.82rem;font-weight:600;background:transparent;color:var(--text2);border:1px solid var(--border);cursor:pointer;transition:all 0.2s;font-family:inherit}
.msg-btn-clear:hover{border-color:var(--border2);color:var(--text)}
.msg-btn-send{padding:8px 24px;border-radius:8px;font-size:0.82rem;font-weight:600;background:var(--grad);color:#fff;border:none;cursor:pointer;transition:all 0.2s;font-family:inherit;box-shadow:0 2px 10px rgba(108,99,255,0.2)}
.msg-btn-send:hover{transform:translateY(-1px);box-shadow:0 4px 16px rgba(108,99,255,0.3)}
.msg-btn-send:disabled{opacity:0.5;cursor:not-allowed;transform:none}
.msg-btn-send.sending{opacity:0.7}
.msg-success{text-align:center;padding:24px;color:var(--accent2);font-weight:600;font-size:0.92rem}

/* ===== Cool Effects ===== */
@keyframes gradient-shift{0%{background-position:0% 50%}50%{background-position:100% 50%}100%{background-position:0% 50%}}
.hero-name{background-size:200% 200%;animation:gradient-shift 4s ease infinite}

.fade-in{opacity:0;transform:translateY(20px);transition:opacity 0.42s ease,transform 0.42s ease}
.fade-in.visible{opacity:1;transform:translateY(0)}

/* Card mouse-tracking glow */
.info-card,.project-card,.contact-card,.mini-stat,.pub-row,.exp-row,.patent-row{position:relative;overflow:hidden}
.info-card::before,.project-card::before,.contact-card::before,.mini-stat::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:radial-gradient(400px circle at var(--mouse-x,50%) var(--mouse-y,50%),rgba(108,99,255,0.06),transparent 40%);opacity:0;transition:opacity 0.3s ease;pointer-events:none;z-index:0}
.info-card:hover::before,.project-card:hover::before,.contact-card:hover::before,.mini-stat:hover::before{opacity:1}
.info-card>*,.project-card>*,.contact-card>*,.mini-stat>*{position:relative;z-index:1}

/* Section header entrance */
.section-header .section-title{opacity:0;transform:translateY(15px);transition:all 0.5s ease}
.section-header.animate-in .section-title{opacity:1;transform:translateY(0)}

/* Hero intro entrance */
@keyframes hero-fade-up{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
.hero-intro .hero-greeting{animation:hero-fade-up 0.38s ease 0.04s both}
.hero-intro .hero-name{animation:hero-fade-up 0.38s ease 0.12s both}
.hero-intro .hero-subtitle{animation:hero-fade-up 0.38s ease 0.2s both}
.hero-intro .intro-text{animation:hero-fade-up 0.38s ease 0.28s both}

/* Typing cursor */
.hero-subtitle .typing-cursor{display:inline-block;width:2px;height:1em;background:var(--accent);margin-left:4px;vertical-align:text-bottom;animation:blink-cursor 0.8s step-end infinite}
@keyframes blink-cursor{0%,100%{opacity:1}50%{opacity:0}}

/* Profile avatar glow */
@keyframes avatar-glow{0%,100%{box-shadow:0 0 20px rgba(108,99,255,0.2)}50%{box-shadow:0 0 30px rgba(108,99,255,0.4)}}
.profile-avatar{animation:avatar-glow 3s ease-in-out infinite}

/* Pub row shimmer for first-author */
@keyframes shimmer{0%{left:-100%}100%{left:200%}}
.pub-row.first-author::after{content:'';position:absolute;top:0;left:-100%;width:50%;height:100%;background:linear-gradient(90deg,transparent,rgba(108,99,255,0.04),transparent);animation:shimmer 6s ease-in-out infinite;pointer-events:none}

/* Nav pill transition glow */
.nav-pill:hover{text-shadow:0 0 12px rgba(108,99,255,0.3)}
.nav-pill.active{text-shadow:0 0 8px rgba(255,255,255,0.3)}

/* Stagger fade-in children */
.fade-in:nth-child(1){transition-delay:0s}.fade-in:nth-child(2){transition-delay:0.06s}.fade-in:nth-child(3){transition-delay:0.12s}.fade-in:nth-child(4){transition-delay:0.18s}.fade-in:nth-child(5){transition-delay:0.24s}.fade-in:nth-child(6){transition-delay:0.3s}
.pub-row.fade-in{transition-delay:0s !important}

/* ===== Responsive: Tablet ===== */
@media(max-width:1024px){
.sidebar{width:240px}
.main{margin-left:240px}
.about-grid{grid-template-columns:1fr}
.section{padding:32px 24px}
.exp-left{flex:0 0 200px}
}

/* ===== Responsive: Mobile ===== */
@media(max-width:768px){
.app{flex-direction:column}
.sidebar{position:relative;width:100%;border-right:none;border-bottom:1px solid rgba(108,99,255,0.1);display:block;overflow:visible}
.sidebar::before{display:none}
.sidebar-inner{padding:24px 20px 20px;display:flex;flex-direction:column;align-items:center;text-align:center}
.profile-section{width:100%;padding-bottom:16px;margin-bottom:16px}
.profile-avatar{width:80px;height:80px;margin-bottom:10px}
.profile-avatar img{width:68px;height:68px}
.profile-name{font-size:1.3rem}
.profile-name-en{font-size:0.78rem}
.profile-status{font-size:0.7rem;padding:4px 12px;margin-top:8px}
.sidebar-stats{width:100%;gap:8px;margin:12px 0}
.mini-stat{padding:10px 4px}
.mini-num{font-size:1.1rem}
.mini-label{font-size:0.6rem}
.sidebar-section{width:100%;margin-bottom:12px;padding-bottom:12px}
.sidebar-title{font-size:0.65rem;margin-bottom:8px}
.tag-list{justify-content:center}
.tag{font-size:0.68rem;padding:3px 8px}
.sidebar-footer{width:100%;padding-top:8px;margin-top:0}
.scholar-link{padding:7px 14px;font-size:0.78rem}
.theme-toggle{top:12px;right:12px;width:32px;height:32px}

/* Main content mobile */
.main{margin-left:0}
.top-nav{position:sticky;top:0}
.nav-inner{padding:8px 12px;overflow-x:auto;gap:4px;-webkit-overflow-scrolling:touch}
.nav-inner::-webkit-scrollbar{display:none}
.nav-pill{padding:6px 12px;font-size:0.75rem;gap:4px}
.nav-icon{font-size:0.8rem}
.section{padding:20px 16px}
.section-header{flex-direction:column;align-items:flex-start;gap:10px}
.section-title{font-size:1.15rem}
.pub-filter,.exp-filter{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}
.filter-btn{padding:4px 12px;font-size:0.68rem;flex-shrink:0}

/* About mobile */
.hero-name{font-size:1.8rem}
.hero-subtitle{font-size:0.88rem;margin-bottom:16px}
.intro-text p{font-size:0.85rem;line-height:1.7}
.about-grid{grid-template-columns:1fr;gap:12px}

/* Publications mobile */
.pub-row{flex-direction:column;gap:8px;padding:12px}
.pub-year-col{display:inline-block}
.year-badge{width:auto;padding:0 10px}
.pub-title{font-size:0.84rem}
.pub-top-row{flex-direction:column;gap:6px}
.pub-badges{justify-content:flex-start}
.pub-authors{font-size:0.75rem}
.pub-venue{font-size:0.72rem}

/* Experience mobile */
.exp-row{flex-direction:column;gap:10px;padding:14px}
.exp-left{flex:none}
.exp-company{font-size:0.9rem}
.exp-role{font-size:0.78rem}

/* Projects mobile */
.project-grid{grid-template-columns:1fr}
.project-card{padding:16px}
.project-desc{font-size:0.78rem}

/* Contact mobile */
.contact-grid{grid-template-columns:1fr 1fr}
.contact-card{padding:16px 12px}
.contact-icon{font-size:1.2rem}
.contact-label{font-size:0.62rem}
.contact-value{font-size:0.8rem}

/* Message form mobile */
.msg-row{grid-template-columns:1fr}
.message-form-wrapper{padding:16px}
.msg-btn-send{padding:8px 18px}

/* Patent mobile */
.patent-row{padding:12px;gap:10px}
.patent-icon{font-size:1.1rem}
.patent-text{font-size:0.82rem}
}

/* ===== Extra Small Screens ===== */
@media(max-width:380px){
.sidebar-stats{grid-template-columns:repeat(3,1fr);gap:6px}
.mini-stat{padding:8px 2px}
.mini-num{font-size:1rem}
.contact-grid{grid-template-columns:1fr}
.hero-name{font-size:1.5rem}
.nav-pill{padding:5px 10px;font-size:0.7rem}
}