:root {
      --bg-0: #07060f;
      --bg-1: #0d0b1d;
      --aura-1: #6d4bff;
      --aura-2: #18c8c0;
      --aura-3: #ff5d9e;
      --surface: rgba(255, 255, 255, 0.045);
      --surface-strong: rgba(255, 255, 255, 0.08);
      --border: rgba(255, 255, 255, 0.12);
      --accent: #5eead4;
      --accent-2: #a78bfa;
      --accent-3: #f472b6;
      --text: #ededff;
      --text-dim: #a9a8c8;
      --text-faint: #6f6e92;
      --radius: 20px;
      --radius-sm: 14px;
      --maxw: 1080px;
      --ease: cubic-bezier(.22,.61,.36,1);
      --font-sans: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      --font-display: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
    body {
      font-family: var(--font-sans);
      background: var(--bg-0); color: var(--text); line-height: 1.65; font-size: 17px;
      overflow-x: hidden; -webkit-font-smoothing: antialiased; position: relative; min-height: 100vh;
    }

    .aurora { position: fixed; inset: 0; z-index: -2;
      background:
        radial-gradient(60% 50% at 18% 12%, rgba(109,75,255,.30), transparent 60%),
        radial-gradient(50% 45% at 82% 22%, rgba(24,200,192,.22), transparent 60%),
        radial-gradient(55% 55% at 50% 95%, rgba(255,93,158,.18), transparent 60%),
        linear-gradient(160deg, var(--bg-1), var(--bg-0));
      filter: saturate(115%); }
    .aurora::before, .aurora::after { content: ""; position: absolute; width: 46vmax; height: 46vmax; border-radius: 50%; filter: blur(90px); opacity: .5; will-change: transform; }
    .aurora::before { background: radial-gradient(circle, var(--aura-1), transparent 65%); top: -12vmax; left: -8vmax; animation: drift1 22s var(--ease) infinite alternate; }
    .aurora::after { background: radial-gradient(circle, var(--aura-2), transparent 65%); bottom: -16vmax; right: -10vmax; animation: drift2 26s var(--ease) infinite alternate; }
    @keyframes drift1 { to { transform: translate(14vmax, 10vmax) scale(1.15); } }
    @keyframes drift2 { to { transform: translate(-12vmax, -8vmax) scale(1.2); } }

    .cursor-glow { position: fixed; width: 460px; height: 460px; border-radius: 50%;
      background: radial-gradient(circle, rgba(94,234,212,.16), transparent 60%); transform: translate(-50%, -50%);
      pointer-events: none; z-index: -1; left: var(--mx, 50%); top: var(--my, 30%); transition: opacity .4s ease; opacity: 0; }
    @media (hover: hover) and (pointer: fine) { .cursor-glow { opacity: 1; } }

    .grain { position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: .045;
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); }

    .wrap { width: min(100% - 2.4rem, var(--maxw)); margin-inline: auto; }
    h1, h2, h3, .display { font-family: var(--font-display); line-height: 1.05; letter-spacing: -.02em; }
    .eyebrow { font-size: .8rem; letter-spacing: .28em; text-transform: uppercase; color: var(--accent); font-weight: 600; }
    .section-title { font-size: clamp(1.9rem, 6vw, 3rem); font-weight: 800; margin: .4rem 0 1.2rem; }
    .gradient-text { background: linear-gradient(110deg, var(--accent) 0%, var(--accent-2) 45%, var(--accent-3) 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
    .lead { color: var(--text-dim); max-width: 62ch; font-size: clamp(1.08rem, 2.6vw, 1.32rem); line-height: 1.7; }

    header.nav { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); background: rgba(7,6,15,.55); border-bottom: 1px solid var(--border); }
    .nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
    .brand { font-family: var(--font-display); font-weight: 800; font-size: 1.15rem; letter-spacing: -.01em; display: inline-flex; align-items: center; gap: .5rem; }
    .brand b { color: var(--accent); }
    .brand-avatar { width: 30px; height: 30px; border-radius: 50%; object-fit: cover; border: 1px solid var(--border); flex: none; }
    .nav-links { display: none; gap: .3rem; }
    .nav-links a { color: var(--text-dim); text-decoration: none; font-size: .95rem; font-weight: 500; padding: .55rem .9rem; border-radius: 999px; min-height: 44px; display: inline-flex; align-items: center; transition: color .2s, background .2s; }
    .nav-links a:hover, .nav-links a:focus-visible { color: var(--text); background: var(--surface); }
    @media (min-width: 880px) { .nav-links { display: flex; } }

    .tabbar { position: fixed; bottom: 0; left: 0; right: 0; z-index: 60; display: flex; justify-content: space-around;
      padding: .4rem .4rem calc(.4rem + env(safe-area-inset-bottom)); background: rgba(7,6,15,.82); backdrop-filter: blur(16px); border-top: 1px solid var(--border); }
    .tabbar a { flex: 1; text-align: center; color: var(--text-dim); text-decoration: none; font-size: .72rem; padding: .5rem 0; min-height: 44px; display: flex; flex-direction: column; align-items: center; gap: .2rem; transition: color .2s; }
    .tabbar a:focus-visible, .tabbar a.active { color: var(--accent); }
    @media (min-width: 880px) { .tabbar { display: none; } }

    .hero { padding: clamp(4rem, 14vh, 8rem) 0 3rem; }
    .hero-grid { display: grid; gap: 2rem; grid-template-columns: 1fr; align-items: center; }
    @media (min-width: 860px) { .hero-grid { grid-template-columns: 1.5fr 1fr; } }
    .hero .tag { display: inline-flex; align-items: center; gap: .5rem; padding: .45rem .9rem; border: 1px solid var(--border); border-radius: 999px; background: var(--surface); font-size: .85rem; color: var(--text-dim); margin-bottom: 1.6rem; }
    .hero .tag .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 12px var(--accent); animation: pulse 2s infinite; }
    @keyframes pulse { 50% { opacity: .4; } }
    .hero h1 { font-size: clamp(3rem, 14vw, 7.5rem); font-weight: 800; margin-bottom: 1rem; }
    .char { display: inline-block; opacity: 0; transform: translateY(40px) rotate(6deg); animation: rise .7s var(--ease) forwards; }
    @keyframes rise { to { opacity: 1; transform: none; } }
    .hero .role { font-size: clamp(1.1rem, 4vw, 1.6rem); color: var(--text); font-weight: 500; margin-bottom: .8rem; }
    .hero .role b { color: var(--accent); }
    .hero .meta-line { color: var(--text-dim); font-size: clamp(1rem, 2.4vw, 1.22rem); margin-bottom: 1.4rem; display: flex; flex-wrap: wrap; gap: .45rem 1.4rem; }
    .hero .meta-line span { display: inline-flex; align-items: center; gap: .35rem; }
    .hero .meta-line span::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--accent-2); }
    .hero .lead { margin-bottom: 2rem; }
    .cta-row { display: flex; flex-wrap: wrap; gap: .9rem; }
    .btn { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; min-height: 48px; padding: 0 1.4rem; border-radius: 999px; font-weight: 600; font-size: 1rem; text-decoration: none; cursor: pointer; border: 1px solid transparent; transition: transform .18s var(--ease), box-shadow .25s, background .2s; }
    .btn-primary { background: linear-gradient(110deg, var(--accent), var(--accent-2)); color: #07101a; box-shadow: 0 10px 30px -8px rgba(94,234,212,.5); }
    .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 40px -8px rgba(94,234,212,.65); }
    .btn-ghost { background: var(--surface); color: var(--text); border-color: var(--border); }
    .btn-ghost:hover { background: var(--surface-strong); transform: translateY(-2px); }

    .hero-links { display: flex; flex-wrap: wrap; gap: .9rem 1.4rem; margin-top: 1.4rem; }
    .hero-links a { color: var(--text-dim); text-decoration: none; font-size: .95rem; display: inline-flex; align-items: center; gap: .4rem; transition: color .2s; }
    .hero-links a:hover, .hero-links a:focus-visible { color: var(--accent); }
    .hero-links a::before { content: "→"; color: var(--accent); }

    .hero-avatar { display: flex; justify-content: center; }
    @media (min-width: 860px) { .hero-avatar { justify-content: flex-end; } }
    .avatar { width: clamp(132px, 38vw, 190px); height: clamp(132px, 38vw, 190px); border-radius: 50%; border: 2px solid var(--border); background: var(--surface); cursor: pointer; overflow: hidden; position: relative; display: grid; place-items: center; transition: transform .25s var(--ease), box-shadow .3s; box-shadow: 0 0 0 6px rgba(94,234,212,.08); }
    .avatar:hover, .avatar:focus-visible { transform: scale(1.04); box-shadow: 0 0 0 8px rgba(94,234,212,.16), 0 20px 50px -20px rgba(94,234,212,.5); }
    .avatar-img { width: 100%; height: 100%; object-fit: cover; }
    .avatar-ph { font-family: var(--font-display); font-size: clamp(3rem, 12vw, 5rem); font-weight: 800; background: linear-gradient(110deg, var(--accent), var(--accent-2), var(--accent-3)); -webkit-background-clip: text; background-clip: text; color: transparent; }
    .avatar::after { content: "🔍"; position: absolute; right: 8px; bottom: 8px; width: 30px; height: 30px; border-radius: 50%; background: rgba(7,6,15,.72); display: grid; place-items: center; font-size: .8rem; opacity: 0; transition: opacity .2s; }
    .avatar:hover::after, .avatar:focus-visible::after { opacity: 1; }

    section { padding: clamp(3.5rem, 9vw, 6rem) 0; scroll-margin-top: 80px; }
    .card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); padding: 1.5rem; transition: transform .25s var(--ease), border-color .25s, box-shadow .3s; }

    .about-grid { display: grid; gap: 1.4rem; grid-template-columns: 1fr; align-items: start; }
    @media (min-width: 800px) { .about-grid { grid-template-columns: 1.4fr 1fr; } }
    .about-card p { color: var(--text-dim); margin-bottom: 1rem; }
    .about-card p:last-child { margin-bottom: 0; }
    .stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
    .stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 1.2rem; }
    .stat .n { font-family: var(--font-display); font-size: 2rem; font-weight: 800; color: var(--accent); }
    .stat .l { font-size: .82rem; color: var(--text-dim); word-break: break-word; }

    .skill-group { margin-bottom: 2rem; }
    .skill-group:last-child { margin-bottom: 0; }
    .skill-group h3 { font-size: 1.05rem; color: var(--text); margin-bottom: .9rem; font-family: var(--font-sans); font-weight: 600; }
    .skill-list { display: grid; gap: .9rem; }
    .skill .top { display: flex; justify-content: space-between; align-items: baseline; gap: .6rem; font-size: .92rem; margin-bottom: .4rem; }
    .skill .top span:first-child { flex: 1 1 auto; min-width: 0; }
    .skill .top span:last-child { flex: none; color: var(--text-dim); }
    .bar { height: 8px; border-radius: 999px; background: var(--surface-strong); overflow: hidden; }
    .bar > i { display: block; height: 100%; width: 0; border-radius: 999px; background: linear-gradient(90deg, var(--accent), var(--accent-2)); transition: width 1.1s var(--ease); }
    .chips { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: .4rem; }
    .chip { font-size: .85rem; padding: .45rem .9rem; border-radius: 999px; background: var(--surface); border: 1px solid var(--border); color: var(--text-dim); }

    .timeline { position: relative; padding-left: 1.8rem; }
    .timeline::before { content: ""; position: absolute; left: 7px; top: 6px; bottom: 6px; width: 2px; background: linear-gradient(var(--accent), var(--accent-2), var(--accent-3)); border-radius: 2px; opacity: .5; }
    .tl-item { position: relative; margin-bottom: 2.2rem; }
    .tl-item:last-child { margin-bottom: 0; }
    .tl-item::before { content: ""; position: absolute; left: -1.8rem; top: 6px; width: 16px; height: 16px; border-radius: 50%; background: var(--bg-0); border: 3px solid var(--accent); box-shadow: 0 0 0 4px rgba(94,234,212,.15); }
    .tl-item .when { font-size: .82rem; color: var(--accent); letter-spacing: .04em; }
    .tl-item h3 { font-size: 1.2rem; margin: .25rem 0 .15rem; }
    .tl-item .org { color: var(--text-dim); font-size: .95rem; margin-bottom: .6rem; }
    .tl-item ul { padding-left: 0; margin: .4rem 0 0; list-style: none; }
    .tl-item li { color: var(--text-dim); font-size: .92rem; margin-bottom: .45rem; position: relative; padding-left: 1.1rem; }
    .tl-item li::before { content: "▹"; position: absolute; left: 0; color: var(--accent); }
    .tl-item li b { color: var(--text); font-weight: 600; }

    .proj-grid { display: grid; gap: 1.2rem; grid-template-columns: 1fr; }
    @media (min-width: 640px) { .proj-grid { grid-template-columns: repeat(2, 1fr); } }
    .proj { position: relative; overflow: hidden; display: flex; flex-direction: column; }
    .proj:hover { transform: translateY(-6px); border-color: var(--accent); box-shadow: 0 20px 50px -20px rgba(94,234,212,.35); }
    .proj .glow { position: absolute; inset: 0; background: radial-gradient(120% 80% at 50% 0%, rgba(167,139,250,.18), transparent 60%); opacity: 0; transition: opacity .3s; }
    .proj:hover .glow { opacity: 1; }
    .proj .ptag { font-size: .75rem; letter-spacing: .1em; text-transform: uppercase; color: var(--accent-2); }
    .proj h3 { font-size: 1.25rem; margin: .3rem 0 .5rem; position: relative; }
    .proj p { color: var(--text-dim); font-size: .92rem; flex: 1; }
    .proj .stack { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: 1rem; }
    .proj .stack span { font-size: .72rem; padding: .25rem .6rem; border-radius: 999px; background: var(--surface-strong); color: var(--text-dim); }

    .edu-grid { display: grid; gap: 1rem; grid-template-columns: 1fr; }
    @media (min-width: 720px) { .edu-grid { grid-template-columns: 1fr 1fr; } }
    .edu-item { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 1.3rem; }
    .edu-item .school { font-weight: 600; color: var(--text); font-size: 1.02rem; }
    .edu-item .deg { color: var(--accent); font-size: .88rem; margin: .25rem 0; }
    .edu-item .year { color: var(--text-dim); font-size: .85rem; }
    .lang-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 1.3rem; grid-column: 1 / -1; }
    .lang-card .k { color: var(--text-dim); font-size: .85rem; }
    .lang-card .v { color: var(--text); }

    footer { padding: 3rem 0 7rem; border-top: 1px solid var(--border); color: var(--text-dim); font-size: .88rem; }
    @media (min-width: 880px) { footer { padding-bottom: 3rem; } }
    .footer-inner { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1rem; text-align: center; }
    @media (min-width: 640px) { .footer-inner { flex-direction: row; flex-wrap: wrap; gap: .8rem 1.2rem; text-align: left; } }

    .reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
    .reveal.in { opacity: 1; transform: none; }

    .lightbox { position: fixed; inset: 0; z-index: 100; background: rgba(5,4,12,.85); backdrop-filter: blur(8px); display: grid; place-items: center; padding: 2rem; opacity: 0; transition: opacity .25s; }
    .lightbox[hidden] { display: none; }
    .lightbox.show { opacity: 1; }
    .lightbox-inner { max-width: min(90vw, 520px); border-radius: 28px; overflow: hidden; border: 1px solid var(--border); box-shadow: 0 30px 80px -20px rgba(0,0,0,.7); background: var(--surface); }
    .lightbox-inner img { width: 100%; height: auto; display: block; }
    .lightbox-inner .avatar-ph { font-size: 14rem; padding: 3rem; display: grid; place-items: center; }

    .load-fail { text-align: center; padding: 4rem 1rem; color: var(--text-dim); }
    .load-fail code { color: var(--accent); background: var(--surface); padding: .1rem .4rem; border-radius: 6px; }

    a:focus-visible, button:focus-visible, .btn:focus-visible, .avatar:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
      .char { opacity: 1; transform: none; }
      .reveal { opacity: 1; transform: none; }
    }

    /* 导航右侧：链接 + 主题切换 + ATS 入口 */
    .nav-right { display: flex; align-items: center; gap: .6rem; }
    .ats-link { display: inline-flex; align-items: center; min-height: 44px; padding: 0 .85rem; border-radius: 999px; font-size: .85rem; font-weight: 600; text-decoration: none; color: var(--text); background: var(--surface); border: 1px solid var(--border); transition: background .2s, transform .18s var(--ease), border-color .2s; }
    .ats-link:hover, .ats-link:focus-visible { background: var(--surface-strong); transform: translateY(-2px); outline: 2px solid var(--accent); outline-offset: 3px; }
    html[data-theme="light"] .ats-link { color: #04201c; }

    /* 白天 / 黑夜 切换滑块 */
    .theme-toggle { display: inline-flex; align-items: center; gap: .5rem; background: var(--surface); border: 1px solid var(--border); border-radius: 999px; padding: .3rem .65rem .3rem .5rem; min-height: 44px; cursor: pointer; color: var(--text-dim); transition: background .2s, border-color .2s; }
    .theme-toggle:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
    .theme-toggle-track { width: 42px; height: 24px; border-radius: 999px; background: var(--surface-strong); border: 1px solid var(--border); position: relative; display: inline-block; flex: none; transition: background .25s; }
    .theme-toggle-knob { position: absolute; top: 2px; left: 2px; width: 18px; height: 18px; border-radius: 50%; background: linear-gradient(110deg, var(--accent), var(--accent-2)); transition: transform .28s var(--ease); }
    html[data-theme="light"] .theme-toggle-knob { transform: translateX(18px); }
    .theme-toggle-label { font-size: 1rem; line-height: 1; }

    /* ===== 白天模式（重设计的浅色主题） ===== */
    html[data-theme="light"] {
      --bg-0: #f4f6fc;
      --bg-1: #e9edf7;
      --aura-1: #8b6dff;
      --aura-2: #2bb6ad;
      --aura-3: #ff7eb0;
      --surface: rgba(255, 255, 255, .72);
      --surface-strong: rgba(255, 255, 255, .92);
      --border: rgba(20, 24, 48, .12);
      --accent: #0f9e8e;
      --accent-2: #7c5cff;
      --accent-3: #e0559a;
      --text: #16182b;
      --text-dim: #4d4f6b;
      --text-faint: #8b8da6;
    }
    html[data-theme="light"] .aurora {
      background:
        radial-gradient(60% 50% at 18% 12%, rgba(139,109,255,.16), transparent 60%),
        radial-gradient(50% 45% at 82% 22%, rgba(43,182,173,.12), transparent 60%),
        radial-gradient(55% 55% at 50% 95%, rgba(255,126,176,.10), transparent 60%),
        linear-gradient(160deg, var(--bg-1), var(--bg-0));
      filter: saturate(100%);
    }
    html[data-theme="light"] .aurora::before,
    html[data-theme="light"] .aurora::after { opacity: .22; }
    html[data-theme="light"] header.nav { background: rgba(255,255,255,.72); }
    html[data-theme="light"] .tabbar { background: rgba(255,255,255,.85); }
    html[data-theme="light"] .avatar { box-shadow: 0 0 0 6px rgba(124,92,255,.08); }
    html[data-theme="light"] .avatar:hover, html[data-theme="light"] .avatar:focus-visible { box-shadow: 0 0 0 8px rgba(124,92,255,.16), 0 20px 50px -20px rgba(124,92,255,.4); }
    html[data-theme="light"] .avatar::after { background: rgba(255,255,255,.85); color: #16182b; }
    html[data-theme="light"] .btn-primary { color: #04201c; }
    html[data-theme="light"] .lightbox { background: rgba(240,242,250,.9); }

    /* 底部「下载 PDF 版」 */
    .pdf-link { display: inline-flex; align-items: center; gap: .45rem; min-height: 40px; padding: 0 1.1rem; border-radius: 999px; font-weight: 600; font-size: .86rem; cursor: pointer; text-decoration: none; background: var(--surface); color: var(--text); border: 1px solid var(--border); transition: background .2s, transform .18s var(--ease); flex: none; }
    .pdf-link:hover, .pdf-link:focus-visible { background: var(--surface-strong); transform: translateY(-2px); outline: 2px solid var(--accent); outline-offset: 3px; }

    /* 打印 / 导出 PDF 专用样式：导出干净白底简历 */
    @media print {
      html, body { background: #fff !important; }
      .aurora, .grain, .cursor-glow, header.nav, .tabbar, .theme-toggle, .ats-link, .lightbox, .pdf-link { display: none !important; }
      * { color: #1a1a1a !important; background: transparent !important; box-shadow: none !important; backdrop-filter: none !important; border-color: #ddd !important; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
      section { padding: 1rem 0 !important; }
      .reveal, .char { opacity: 1 !important; transform: none !important; }
      .gradient-text { color: #1a1a1a !important; -webkit-text-fill-color: #1a1a1a !important; }
    }