:root{--ink:#172033;--paper:#f6f2e9;--card:#fff;--gold:#b9892e;--blue:#214a76;--green:#237a57;--green-bg:#e2f5ea;--red:#a53843;--red-bg:#fbe7e8;--muted:#687184;--line:#ddd7ca}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Georgia,'Times New Roman',serif;line-height:1.55}.quiz-page{padding-bottom:112px}
header{padding:38px 20px 28px;text-align:center;background:linear-gradient(135deg,#172033,#263a5b);color:#fff;border-bottom:4px solid var(--gold)}
header h1{margin:0;font-size:clamp(1.75rem,4vw,2.5rem)}header p{margin:8px auto 0;max-width:780px;color:#e5e9f0}.badge{display:inline-block;margin-top:14px;padding:5px 12px;border:1px solid #d9b660;border-radius:999px;color:#ffe8ad;background:#ffffff12;font-weight:700}
.topbar{position:sticky;top:0;z-index:20;display:flex;justify-content:center;gap:18px;flex-wrap:wrap;padding:10px;background:#172033;color:#fff;border-bottom:2px solid var(--gold);font:700 .92rem/1.2 system-ui,sans-serif}
.wrap{width:min(1040px,calc(100% - 28px));margin:24px auto 50px}.panel{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px;margin-bottom:18px;box-shadow:0 5px 18px #1720330c}
.controls{display:grid;grid-template-columns:minmax(180px,1fr) auto auto auto;gap:10px;align-items:center}.search{width:100%;padding:11px 13px;border:1px solid #bfc4cd;border-radius:8px;font:inherit}.btn{border:0;border-radius:999px;padding:10px 16px;background:var(--blue);color:#fff;font:700 .88rem system-ui,sans-serif;cursor:pointer}.btn.secondary{background:#687184}.btn.danger{background:var(--red)}
.toc h2{margin:0 0 10px}.toc a{display:block;color:var(--blue);padding:5px 0;text-decoration:none;border-bottom:1px dashed #e5e0d5}.toc small{color:var(--muted)}
.section-title{margin:34px 0 5px;padding:11px 15px;background:linear-gradient(90deg,#efe1bd,#fff0);border-left:5px solid var(--gold);border-radius:0 8px 8px 0}.section-desc{margin:0 0 15px 18px;color:var(--muted);font-style:italic}
.q-card{background:var(--card);border:1px solid var(--line);border-radius:11px;padding:20px;margin:0 0 15px;box-shadow:0 2px 8px #1720330a}.q-card.correct-card{border-left:5px solid var(--green)}.q-card.wrong-card{border-left:5px solid var(--red)}
.q-num{font:800 .78rem/1.2 system-ui,sans-serif;text-transform:uppercase;letter-spacing:.08em;color:var(--gold);margin-bottom:8px}.quote{white-space:pre-wrap;padding:12px 14px;margin:0 0 13px;border-left:4px solid var(--gold);background:#fbf6e9;font-style:italic}.q-text{font-weight:700;font-size:1.06rem;margin-bottom:14px}.options{display:grid;grid-template-columns:1fr 1fr;gap:9px}.option{width:100%;padding:11px 12px;text-align:left;border:1px solid #d2d5da;border-radius:8px;background:#fbfbf9;color:var(--ink);font:inherit;cursor:pointer}.option:hover:not(:disabled){border-color:var(--blue);background:#f0f5fa}.option.good{background:var(--green-bg);border-color:var(--green);color:#12583b;font-weight:700}.option.bad{background:var(--red-bg);border-color:var(--red);color:#7e1e28}.option:disabled{cursor:default}.explanation{display:none;margin-top:13px;padding:10px 13px;border-left:4px solid var(--gold);background:#fff8df;color:#54472c}.empty{padding:30px;text-align:center;color:var(--muted)}
.home-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:15px}.lecture-card{display:block;text-decoration:none;color:inherit;background:#fff;border:1px solid var(--line);border-radius:12px;padding:19px;box-shadow:0 3px 12px #1720330d;transition:.2s}.lecture-card:hover{transform:translateY(-2px);border-color:var(--gold)}.lecture-card h2{margin:0 0 6px;font-size:1.23rem}.lecture-card p{margin:0;color:var(--muted)}footer{text-align:center;color:var(--muted);padding:25px;font-size:.9rem}
.speaker-index-card{grid-column:1/-1;position:relative;overflow:hidden;color:#fff;background:linear-gradient(120deg,#4b1823,#7c2932 58%,#9c5a2d);border-color:#b9892e;padding:24px 26px}.speaker-index-card::after{content:'“ ”';position:absolute;right:24px;top:-21px;color:#ffffff18;font-size:7rem;line-height:1}.speaker-index-card p{color:#f5dfcf}.speaker-index-card:hover{border-color:#f0c56f}.speaker-page{--ink:#2b1b1f;--paper:#f5eee7;--gold:#bd7b42;--blue:#6d2632;--line:#dfcec3}.speaker-page header{position:relative;overflow:hidden;background:linear-gradient(135deg,#2d1118,#651f2d 60%,#8b4a2c);border-bottom-color:#d49a59}.speaker-page header::after{content:'“';position:absolute;right:6vw;bottom:-92px;color:#ffffff12;font-size:17rem;line-height:1}.speaker-page .topbar{background:#321219;border-bottom-color:#d49a59}.speaker-page .section-title{background:linear-gradient(90deg,#ead0bb,#fff0);border-left-color:#8c3441}.speaker-page .q-card{position:relative;overflow:hidden;border-top:3px solid #bd7b42}.speaker-page .quote{position:relative;margin-top:2px;padding:15px 18px 15px 45px;background:#fbf2e9;border-left-color:#8c3441;font-size:1.05rem}.speaker-page .quote::before{content:'“';position:absolute;left:13px;top:1px;color:#bd7b42;font-size:2.8rem;line-height:1}.speaker-page .q-num{color:#8c3441}.speaker-page .quiz-progress-card{border-left-color:#8c3441}.speaker-page .quiz-progress-fill{background:linear-gradient(90deg,#8c3441,#bd7b42)}
.quiz-progress-shell{position:fixed;left:50%;bottom:14px;z-index:40;width:min(760px,calc(100vw - 24px));transform:translateX(-50%);pointer-events:none}.quiz-progress-card{padding:10px 13px;background:#fffdf8f7;border:1px solid var(--line);border-left:5px solid var(--gold);border-radius:10px;box-shadow:0 12px 32px #1720332e;backdrop-filter:blur(10px);pointer-events:auto}.quiz-progress-top,.quiz-progress-sub{display:flex;align-items:center;justify-content:space-between;gap:12px}.quiz-progress-top{margin-bottom:7px;font-weight:900}.quiz-progress-title{font:900 .78rem/1.2 system-ui,sans-serif;letter-spacing:.09em;text-transform:uppercase;color:var(--ink)}.quiz-progress-count{font-size:1rem}.quiz-progress-count strong{color:var(--red);font-size:1.08em}.quiz-progress-track{height:10px;overflow:hidden;background:#efe4c8;border:1px solid #b9892e80;border-radius:999px}.quiz-progress-fill{width:0;height:100%;background:linear-gradient(90deg,var(--gold),var(--green));border-radius:999px;transition:width .2s ease}.quiz-progress-sub{margin-top:6px;color:var(--muted);font:700 .78rem/1.3 system-ui,sans-serif}
@media(max-width:720px){.options{grid-template-columns:1fr}.controls{grid-template-columns:1fr 1fr}.search{grid-column:1/-1}.btn{padding:10px 11px}.wrap{width:min(100% - 18px,1040px)}.q-card{padding:16px}}
@media(max-width:720px){.quiz-page{padding-bottom:105px}.quiz-progress-shell{bottom:8px;width:calc(100vw - 16px)}.quiz-progress-card{padding:9px 10px}.quiz-progress-sub{font-size:.72rem}}
@media print{.topbar,.controls,.toc,.quiz-progress-shell{display:none}.quiz-page{padding-bottom:0}.q-card{break-inside:avoid;box-shadow:none}.explanation{display:block!important}.option.good{font-weight:700}.wrap{width:100%}}