:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--front-bg:#f4f1eb;--front-surface:#fcf9f3e0;--front-surface-strong:#fffdf8;--ink:#171514;--muted:#5f605d;--accent:#c46b35;--accent-strong:#9e5122;--accent-soft:#f3dfce;--line:#ddd5ca;--shadow:0 24px 60px #17151414;--admin-accent:#163d2f;--admin-accent-soft:#e8f1ea;--admin-line:#d9e4db;--success-bg:#163d2f14;--error-bg:#963f291a}*{box-sizing:border-box}html,body{min-height:100%;margin:0;padding:0}body{color:var(--ink);background:radial-gradient(circle at 0 0,#c46b3526,#0000 34%),radial-gradient(circle at 100% 0,#163d2f14,#0000 28%),linear-gradient(#f7f4ee 0%,#efe8dc 100%);font-family:Noto Sans TC,PingFang TC,Microsoft JhengHei,Segoe UI,sans-serif}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}code,pre,.mono{font-family:Consolas,SFMono-Regular,Courier New,monospace}.shell{place-items:center;min-height:100vh;padding:32px;display:grid}.panel{background:var(--front-surface);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);width:min(1120px,100%);box-shadow:var(--shadow);border:1px solid #ddd5caeb;border-radius:32px;padding:40px}.hero-panel,.dashboard-panel,.page-panel{width:min(1180px,100%)}.auth-panel{grid-template-columns:minmax(320px,.92fr) minmax(0,1.08fr);gap:28px;width:min(1160px,100%);display:grid}.eyebrow{color:var(--accent);letter-spacing:.12em;text-transform:uppercase;margin:0 0 12px;font-size:.82rem;font-weight:700}h1,h2,h3{letter-spacing:-.04em;font-family:Noto Sans TC,PingFang TC,Microsoft JhengHei,Segoe UI,sans-serif;font-weight:800}h1{margin:0 0 16px;font-size:clamp(2.4rem,4.6vw,4.4rem);line-height:1.02}h2{margin:0 0 12px;font-size:clamp(1.5rem,2.3vw,2.45rem);line-height:1.08}h3{margin:0;font-size:1.15rem;line-height:1.2}.lead{color:var(--muted);margin:0;font-size:1.05rem;line-height:1.8}.muted{color:var(--muted);margin:0;line-height:1.7}.hero-grid,.dashboard-grid{grid-template-columns:minmax(0,1.15fr) minmax(300px,.85fr);gap:24px;display:grid}.page-stack,.stack-sm,.member-course-list,.audio-list,.player-shell{gap:24px;display:grid}.stack-sm{gap:12px}.section-hero,.section-split,.eyebrow-row,.audio-topline,.dashboard-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;display:flex}.dashboard-header{align-items:flex-start}.detail-grid,.course-grid,.stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;display:grid}.stat-grid{grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}.hero-actions,.actions,.inline-links,.status-row{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.hero-actions{margin-top:32px}.button{appearance:none;border:1px solid var(--accent);background:linear-gradient(180deg,var(--accent)0%,var(--accent-strong)100%);color:#fff8f1;cursor:pointer;border-radius:999px;padding:13px 20px;font-weight:700;transition:transform .16s,box-shadow .16s,border-color .16s,background-color .16s}.button:hover{transform:translateY(-1px);box-shadow:0 14px 28px #9e51222e}.button:disabled{cursor:progress;opacity:.7;box-shadow:none;transform:none}.button.secondary,.button.ghost{color:var(--accent);background:#fffdf8c7}.button.secondary{border-color:#c46b3552}.button.ghost{border-color:var(--line);color:var(--ink)}.card,.auth-aside,.course-card,.audio-card,.empty-state,.subtle-panel,.stat-card{background:linear-gradient(#fffffff0 0%,#f8f4eef7 100%);border:1px solid #ddd5cae6;border-radius:24px;gap:16px;padding:24px;display:grid;box-shadow:0 10px 24px #1715140a}.auth-aside{color:#fcf8f0;box-shadow:none;background:radial-gradient(circle at 0 0,#f8be8c2e,#0000 38%),linear-gradient(160deg,#121f1cf2 0%,#1a2623f5 42%,#442a1beb 100%);border-color:#ffffff14;align-content:start}.auth-aside .eyebrow{color:#f7cba8}.auth-aside .lead,.auth-aside .info-list,.auth-aside .muted{color:#fcf8f0c7}.subtle-panel{padding:18px 20px}.stat-card{gap:8px}.stat-card strong,.admin-summary-value{font-size:1.7rem;line-height:1}.auth-panel-body,.section-heading,.form{gap:18px;display:grid}.field{gap:8px;display:grid}.label{font-size:.95rem;font-weight:700}.input{width:100%;color:var(--ink);background:#ffffffd1;border:1px solid #ddd5caf2;border-radius:18px;padding:14px 16px;transition:border-color .16s,box-shadow .16s,background-color .16s}.input:focus{background:#fff;border-color:#c46b35d9;outline:none;box-shadow:0 0 0 4px #c46b351f}textarea.input{resize:vertical;min-height:120px}.banner{background:var(--success-bg);color:var(--admin-accent);border:1px solid #163d2f29;border-radius:18px;margin:0;padding:14px 16px;line-height:1.6}.banner.error{background:var(--error-bg);color:#7f2f21;border-color:#963f292e}.text-link{color:var(--accent);font-weight:700}.text-link:hover{text-underline-offset:3px;text-decoration:underline}.info-list{color:var(--muted);margin:0;padding-left:20px;line-height:1.8}.pill{background:#fffcf7f0;border:1px solid #ddd5caf2;border-radius:999px;align-items:center;padding:8px 12px;font-size:.92rem;display:inline-flex}.audio-player{width:100%}.audio-card h2,.course-card h2,.empty-state h2{margin-bottom:0}.audio-index{min-width:42px;color:var(--accent-strong);background:#c46b351f;border-radius:999px;justify-content:center;align-items:center;padding:8px 12px;font-weight:700;display:inline-flex}.code-sample{color:#f8f0e6;background:#241a14;border-radius:18px;margin:0;padding:16px 18px;font-size:.95rem;line-height:1.6;overflow-x:auto}.developer-note{background:#e8f1ead9;border:1px dashed #163d2f47;border-radius:16px;gap:10px;padding:14px 16px;display:grid}.progress-panel{background:#e8f1eab8;border:1px solid #163d2f1f;border-radius:18px;gap:10px;padding:16px 18px;display:grid}.progress-label{color:var(--admin-accent);justify-content:space-between;align-items:center;gap:12px;font-weight:700;display:flex}.progress-track{background:#163d2f1f;border-radius:999px;width:100%;height:12px;overflow:hidden}.progress-fill{border-radius:inherit;background:linear-gradient(90deg,#1f513f 0%,#2e7a60 100%);height:100%;transition:width .18s}.admin-shell{background:linear-gradient(#f7faf7 0%,#edf3ee 100%);grid-template-columns:272px minmax(0,1fr);min-height:100vh;display:grid}.admin-sidebar{border-right:1px solid var(--admin-line);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#f8fbf8eb;align-content:start;gap:24px;height:100vh;padding:28px 22px;display:grid;position:sticky;top:0}.admin-brand{gap:6px;display:grid}.admin-brand-mark{color:var(--admin-accent);letter-spacing:.14em;text-transform:uppercase;font-size:.82rem;font-weight:800}.admin-brand-name{letter-spacing:-.04em;margin:0;font-family:Noto Sans TC,PingFang TC,Microsoft JhengHei,sans-serif;font-size:2rem;font-weight:800}.admin-brand-copy{color:var(--muted);margin:0;line-height:1.6}.admin-nav,.admin-support{gap:10px;display:grid}.admin-nav-link{color:#1d2b25;border:1px solid #0000;border-radius:18px;justify-content:space-between;align-items:center;gap:12px;padding:14px 16px;font-weight:700;transition:background-color .16s,border-color .16s,transform .16s;display:flex}.admin-nav-link:hover{background:#e8f1eab8;border-color:#163d2f14;transform:translate(2px)}.admin-nav-link.active{color:#f6faf7;background:linear-gradient(#1b4a39 0%,#163d2f 100%);border-color:#0000;box-shadow:0 14px 28px #163d2f2e}.admin-signout{justify-content:center;width:100%}.admin-content{align-content:start;gap:28px;padding:32px;display:grid}.admin-topbar{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:20px;display:flex}.admin-topbar h1{font-family:Noto Sans TC,PingFang TC,Microsoft JhengHei,sans-serif;font-size:clamp(2rem,3vw,3.1rem);line-height:1.04}.admin-summary{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;display:grid}.admin-summary-card{border:1px solid var(--admin-line);background:linear-gradient(#fffffff5 0%,#f6faf6f5 100%);border-radius:22px;gap:10px;padding:20px 22px;display:grid}.admin-summary-label{color:var(--muted);letter-spacing:.08em;text-transform:uppercase;font-size:.86rem;font-weight:700}.admin-page-stack{gap:24px;display:grid}.admin-shell .eyebrow{color:var(--admin-accent)}.admin-shell .button{border-color:var(--admin-accent);color:#f6faf7;box-shadow:none;background:linear-gradient(#1f513f 0%,#163d2f 100%)}.admin-shell .button:hover{box-shadow:0 14px 28px #163d2f2e}.admin-shell .button.secondary,.admin-shell .button.ghost{color:var(--admin-accent);background:#ffffffeb}.admin-shell .button.secondary{border-color:#163d2f2e}.admin-shell .button.ghost{border-color:var(--admin-line);color:var(--ink)}.admin-shell .card,.admin-shell .course-card,.admin-shell .audio-card,.admin-shell .empty-state,.admin-shell .subtle-panel{border-color:var(--admin-line);box-shadow:none;background:#fffffff5}.admin-shell .pill{border-color:var(--admin-line);background:#f7faf7eb}.admin-shell .input{border-color:var(--admin-line)}.admin-shell .input:focus{border-color:#163d2f99;box-shadow:0 0 0 4px #163d2f1a}@media (max-width:1080px){.admin-shell{grid-template-columns:1fr}.admin-sidebar{border-right:0;border-bottom:1px solid var(--admin-line);height:auto;position:static}}@media (max-width:900px){.shell,.admin-content{padding:20px}.panel{padding:24px}.auth-panel,.detail-grid,.course-grid,.hero-grid,.dashboard-grid{grid-template-columns:1fr}.section-hero,.section-split,.dashboard-header,.admin-topbar{flex-direction:column;align-items:flex-start}}