:root{--text:#4b5563;--text-h:#111827;--bg:#fff;--border:#e5e7eb;--code-bg:#f3f4f6;--accent:#4f46e5;--accent-bg:#4f46e514;--accent-border:#4f46e566;--card-bg:#fff;--social-bg:#f3f4f680;--shadow:#1118270f 0 10px 15px -3px, #1118270a 0 4px 6px -2px;--sans:system-ui, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;font:16px/1.7 var(--sans);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--text:#9ca3af;--text-h:#f3f4f6;--bg:#14161d;--border:#2a2d38;--code-bg:#1e2130;--accent:#818cf8;--accent-bg:#818cf826;--accent-border:#818cf873;--card-bg:#1c1f2b;--shadow:#0006 0 10px 15px -3px, #00000040 0 4px 6px -2px}}body,h1,h2,h3,p{margin:0}a{color:var(--accent)}.app{flex-direction:column;min-height:100svh;display:flex}.content{box-sizing:border-box;width:100%;max-width:760px;margin:0 auto;padding:56px 24px 64px}.site-nav{z-index:10;background:color-mix(in srgb, var(--bg) 88%, transparent);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--border);position:sticky;top:0}.nav-inner{box-sizing:border-box;justify-content:space-between;align-items:center;max-width:760px;margin:0 auto;padding:14px 24px;display:flex}.site-brand{color:var(--text-h);letter-spacing:.5px;font-size:17px;font-weight:700;text-decoration:none}.site-links{gap:24px;display:flex}.site-links a{color:var(--text);font-size:14px;text-decoration:none;transition:color .15s}.site-links a:hover{color:var(--accent)}.site-links a.active{color:var(--accent);font-weight:600}.hero{color:#fff;text-align:center;background:linear-gradient(135deg,#4f46e5 0%,#3b82f6 60%,#60a5fa 100%);padding:80px 24px}.hero h1{margin:0;font-size:52px;font-weight:800;line-height:1.3}.join-section{margin-bottom:48px}.join-section h2{color:var(--text-h);border-bottom:2px solid var(--accent);margin-bottom:16px;padding-bottom:8px;font-size:20px;font-weight:700;display:inline-block}.join-section p{color:var(--text);margin-bottom:12px;font-size:15px;line-height:1.8}.join-section ol{color:var(--text);margin:0 0 12px;padding-left:20px;font-size:15px;line-height:1.8}.join-section a{color:var(--accent)}.position-grid{grid-template-columns:1fr 1fr;gap:16px;display:grid}.position-group{margin-bottom:28px}.position-group h3{color:var(--text-h);margin:0 0 12px;padding:0 2px;font-size:16px;font-weight:700}.position-card{background:var(--card-bg);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:12px;padding:20px 22px;transition:transform .15s,box-shadow .15s}.position-card:hover{transform:translateY(-2px);box-shadow:0 16px 24px -6px #1118271a,0 6px 8px -4px #1118270f}.position-head{justify-content:space-between;align-items:center;margin-bottom:10px;display:flex}.position-head h3{color:var(--text-h);font-size:17px;font-weight:700}.position-category{color:var(--accent);background:var(--accent-bg);border:1px solid var(--accent-border);border-radius:999px;flex-shrink:0;padding:2px 12px;font-size:12px;font-weight:600}.position-card p{margin:0;font-size:14px;line-height:1.7}a.position-card{text-decoration:none;display:block}a.position-card p{color:var(--text)}a.position-card:hover h3{color:var(--accent)}.filter-tabs{gap:8px;display:flex}.filter-tab{border:1px solid var(--border);background:var(--card-bg);color:var(--text);cursor:pointer;border-radius:999px;padding:6px 18px;font-size:14px;transition:all .15s}.filter-tab:hover{color:var(--accent);border-color:var(--accent-border)}.filter-tab.active{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}.position-group-head h2 a{color:var(--text-h);text-decoration:none}.position-group-head h2 a:hover{color:var(--accent)}.position-tags{justify-content:space-between;align-items:center;display:flex;margin-top:12px!important}.position-tag{color:var(--text);background:var(--bg);border:1px solid var(--border);border-radius:999px;padding:2px 12px;font-size:12px;font-weight:600}.position-apply{font-size:13px;font-weight:600;text-decoration:none}.detail-toggle{background:var(--accent-bg);border:1px solid var(--accent-border);color:var(--accent);cursor:pointer;border-radius:8px;margin-bottom:16px;padding:8px 16px;font-size:14px;font-weight:600;transition:all .2s}.detail-toggle:hover{background:var(--accent);color:#fff}.assessment-detail{background:var(--card-bg);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:12px;margin-top:16px;padding:24px}.assessment-detail h3{color:var(--text-h);margin:0 0 20px;font-size:18px;font-weight:700}.assessment-detail h4{color:var(--text-h);margin:20px 0 12px;font-size:16px;font-weight:700}.assessment-detail p{color:var(--text);margin-bottom:12px;font-size:14px;line-height:1.8}@media (width<=640px){.hero{padding:56px 16px 48px}.hero h1{font-size:34px}.position-grid{grid-template-columns:1fr}.site-links{gap:14px}}