:root{color-scheme:dark;--v2-bg:#090a0b;--v2-panel:#111315;--v2-paper:#f0f2eb;--v2-text:#f2f4ed;--v2-muted:#a3a99f;--v2-line:#2a2e2a;--v2-accent:#d1ff00;--v2-accent-ink:#111600;--v2-danger:#ff8a80;--v2-ease:cubic-bezier(.22,1,.36,1)}
body.golden{margin:0;background:var(--v2-bg);color:var(--v2-text);font-family:Inter,"Noto Sans TC",sans-serif;font-size:16px;line-height:1.7}
.golden *{box-sizing:border-box}.golden button,.golden input,.golden select,.golden textarea{font:inherit}.golden a{color:inherit}.golden .lesson-content{width:min(1160px,100%);margin:auto;padding:0 clamp(20px,5vw,72px) 90px}.golden .hero{min-height:min(760px,92vh);display:grid;grid-template-columns:minmax(0,1.15fr) minmax(260px,.62fr);gap:clamp(34px,7vw,92px);align-items:center;padding:64px 0;border-bottom:1px solid var(--v2-line)}.golden .kicker{margin:0 0 16px;color:var(--v2-accent);font:900 .76rem/1.2 "Space Grotesk",sans-serif;letter-spacing:.15em;text-transform:uppercase}.golden h1,.golden h2,.golden h3{font-family:"Space Grotesk","Noto Sans TC",sans-serif;letter-spacing:-.025em;text-wrap:pretty}.golden h1{max-width:10em;margin:0;font-size:clamp(3rem,7.2vw,6.1rem);line-height:1.02}.golden .hero-copy{max-width:38rem;margin:28px 0 0;color:var(--v2-muted);font-size:clamp(1.05rem,2vw,1.3rem)}.golden .hero-aside{display:flex;flex-direction:column;justify-content:space-between;min-height:420px;padding:30px;background:var(--v2-panel);border:1px solid var(--v2-line);border-top:6px solid var(--v2-accent)}.golden .hero-aside strong{color:var(--v2-accent);font-size:.82rem;letter-spacing:.08em}.golden .hero-aside p{margin:10px 0 28px;color:var(--v2-text);font-size:1.15rem;font-weight:750}.golden .chapter-time{color:var(--v2-muted);font-weight:800}.golden .block{padding:clamp(64px,9vw,112px) 0;border-bottom:1px solid var(--v2-line)}.golden .block-header{display:grid;grid-template-columns:minmax(0,.85fr) minmax(280px,1fr);gap:clamp(28px,7vw,88px);align-items:end;margin-bottom:38px}.golden h2{margin:0;font-size:clamp(2.15rem,5vw,4.25rem);line-height:1.08}.golden .block-header>p{margin:0;color:var(--v2-muted);font-size:1.04rem}.golden .case-image{display:block;width:100%;height:auto;max-height:620px;object-fit:cover;border:1px solid var(--v2-line)}.golden .focus-line{display:flex;flex-wrap:wrap;justify-content:center;gap:12px 28px;margin:18px 0 0;color:var(--v2-accent);font-weight:850}.golden .context-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--v2-line);border:1px solid var(--v2-line)}.golden .context-strip div{min-height:130px;padding:22px;background:var(--v2-panel)}.golden .context-strip strong{display:block;margin-bottom:14px;color:var(--v2-accent);font-size:.78rem;letter-spacing:.08em}.golden .context-strip span{font-size:1.05rem;font-weight:750}.golden .safety{display:grid;grid-template-columns:1.35fr .65fr;gap:22px;margin-top:24px}.golden .safety article{padding:28px;background:var(--v2-panel);border:1px solid var(--v2-line)}.golden .safety article:last-child{background:#17110f;border-color:#854d48}.golden .safety h3{margin:0 0 18px;color:var(--v2-accent)}.golden .safety article:last-child h3{color:var(--v2-danger)}.golden .safety ul{margin:0;padding-left:1.25rem}.golden .choice-set{display:grid;gap:12px}.golden .choice-card{position:relative;display:grid;grid-template-columns:48px minmax(180px,.42fr) 1fr;gap:18px;align-items:center;min-height:94px;padding:18px 22px;background:var(--v2-panel);border:1px solid var(--v2-line);cursor:pointer;transition:transform 180ms var(--v2-ease),border-color 180ms ease,background 180ms ease}.golden .choice-card:hover{transform:translateY(-2px);border-color:#657800}.golden .choice-card:has(input:checked){color:var(--v2-accent-ink);background:var(--v2-accent);border-color:var(--v2-accent)}.golden .choice-card input{position:absolute;inset:0;opacity:0;cursor:pointer}.golden .choice-letter{display:grid;place-items:center;width:44px;height:44px;color:var(--v2-accent);font-size:1.4rem;font-weight:900}.golden .choice-card:has(input:checked) .choice-letter{color:var(--v2-accent-ink)}.golden .choice-card strong{font-size:1.22rem}.golden .choice-card span:last-child{color:var(--v2-muted)}.golden .choice-card:has(input:checked) span:last-child{color:#283000}.golden .action{min-height:48px;display:inline-flex;align-items:center;justify-content:center;margin-top:20px;padding:0 20px;color:var(--v2-accent-ink);background:var(--v2-accent);border:1px solid var(--v2-accent);border-radius:8px;font-weight:900}.golden .action.secondary{color:var(--v2-text);background:transparent;border-color:var(--v2-line)}.golden .action:focus-visible,.golden input:focus-visible,.golden select:focus-visible,.golden textarea:focus-visible,.golden button:focus-visible{outline:3px solid var(--v2-accent);outline-offset:3px}.golden .feedback{margin-top:20px;padding:22px;background:var(--v2-panel);border-left:5px solid var(--v2-accent)}.golden .feedback[hidden]{display:none}.golden .feedback strong{color:var(--v2-accent)}.golden .mentor-flow{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:1px;background:var(--v2-line);border:1px solid var(--v2-line)}.golden .mentor-flow article{min-width:0;padding:24px 20px;background:var(--v2-panel)}.golden .mentor-flow b{display:block;margin-bottom:24px;color:var(--v2-accent);font-size:1.8rem}.golden .mentor-flow h3{margin:0 0 10px;font-size:1.15rem}.golden .mentor-flow p{margin:0;color:var(--v2-muted);font-size:.92rem}.golden .mentor-script{display:grid;gap:1px;margin-top:26px;background:var(--v2-line);border:1px solid var(--v2-line)}.golden .mentor-script article{display:grid;grid-template-columns:210px 1fr;gap:24px;padding:24px;background:var(--v2-panel)}.golden .mentor-script strong{color:var(--v2-accent)}.golden .mentor-script p{margin:0;color:var(--v2-text);font-size:1.08rem}.golden .compare{width:100%;border-collapse:collapse;background:var(--v2-panel)}.golden .compare th,.golden .compare td{padding:17px;text-align:left;vertical-align:top;border:1px solid var(--v2-line)}.golden .compare th{color:var(--v2-accent)}.golden .compare .best td{color:var(--v2-accent-ink);background:var(--v2-accent)}.golden .result-panel{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:start}.golden .result-copy{padding:30px;background:var(--v2-paper);color:#151915}.golden .result-copy h3{margin:0 0 18px;font-size:1.7rem}.golden .result-copy p{font-size:1.08rem}.golden .can-say{display:grid;gap:14px}.golden .can-say article{padding:22px;background:var(--v2-panel);border:1px solid var(--v2-line)}.golden .can-say article:last-child{background:#17110f;border-color:#854d48}.golden .can-say strong{color:var(--v2-accent)}.golden .can-say article:last-child strong{color:var(--v2-danger)}.golden .say-it{padding:clamp(26px,5vw,50px);background:var(--v2-paper);color:#121512}.golden .say-it p{max-width:31em;margin:0 auto;font-size:clamp(1.45rem,3.1vw,2.35rem);font-weight:800;line-height:1.5}.golden .sentence-builder{display:grid;grid-template-columns:auto minmax(150px,1fr) auto minmax(180px,1.4fr) auto;gap:12px;align-items:center;margin-top:28px}.golden .sentence-builder select{min-height:52px;padding:0 14px;color:#121512;background:#fff;border:1px solid #7e847d;border-radius:8px}.golden .order-list{display:grid;gap:10px}.golden .order-item{display:grid;grid-template-columns:auto 1fr auto;gap:14px;align-items:center;min-height:68px;padding:10px 12px 10px 20px;background:var(--v2-panel);border:1px solid var(--v2-line)}.golden .order-number{color:var(--v2-accent);font-weight:900}.golden .order-actions{display:flex;gap:6px}.golden .order-actions button{width:44px;height:44px;color:var(--v2-text);background:transparent;border:1px solid var(--v2-line);border-radius:6px}.golden .order-actions button:hover{color:var(--v2-accent);border-color:var(--v2-accent)}.golden .checkpoint{padding:clamp(28px,6vw,56px);background:var(--v2-panel);border-top:6px solid var(--v2-accent)}.golden .checkpoint blockquote{max-width:35em;margin:0 0 24px;font-size:clamp(1.5rem,3.5vw,2.7rem);font-weight:850;line-height:1.35}.golden .checkpoint p{color:var(--v2-muted)}.golden .save-status{position:sticky;z-index:10;bottom:16px;width:max-content;max-width:calc(100% - 28px);margin:24px auto 0;padding:9px 14px;color:var(--v2-accent-ink);background:var(--v2-accent);border-radius:99px;font-size:.8rem;font-weight:800;opacity:0;transform:translateY(8px);transition:opacity 180ms ease,transform 180ms ease}.golden .save-status.is-visible{opacity:1;transform:none}.golden .reveal{opacity:0;transform:translateY(18px);transition:opacity 520ms var(--v2-ease),transform 520ms var(--v2-ease)}.golden .reveal.is-visible{opacity:1;transform:none}
@media(max-width:840px){.golden .hero,.golden .block-header,.golden .safety,.golden .result-panel{grid-template-columns:1fr}.golden .hero{min-height:auto;padding-top:54px}.golden .hero-aside{min-height:0}.golden .context-strip{grid-template-columns:repeat(2,minmax(0,1fr))}.golden .mentor-flow{grid-template-columns:1fr}.golden .mentor-flow article{display:grid;grid-template-columns:50px 130px 1fr;gap:12px}.golden .mentor-flow b{margin:0}.golden .mentor-flow h3{margin:0}.golden .mentor-script article{grid-template-columns:1fr;gap:6px}.golden .choice-card{grid-template-columns:44px 1fr}.golden .choice-card span:last-child{grid-column:2}.golden .sentence-builder{grid-template-columns:1fr}.golden .sentence-builder span{display:none}.golden .compare-wrap{overflow-x:auto;margin-inline:-20px}.golden .compare{min-width:700px}}
@media(max-width:480px){.golden .context-strip{grid-template-columns:1fr}.golden .lesson-content{padding-inline:20px}.golden .mentor-flow article{grid-template-columns:42px 1fr}.golden .mentor-flow p{grid-column:2}.golden .choice-card{padding-inline:14px}.golden .focus-line{justify-content:flex-start}.golden h1{font-size:3.2rem}}
@media(prefers-reduced-motion:reduce){.golden .reveal{opacity:1;transform:none;transition:none}.golden .choice-card,.golden .save-status{transition:none}.golden .choice-card:hover{transform:none}}
@media print{body.golden{background:#fff;color:#111}.golden .lesson-content{width:100%;padding:20px}.golden .hero{min-height:auto}.golden .action,.golden .save-status,.golden .order-actions{display:none}.golden .reveal{opacity:1;transform:none}.golden .block{break-inside:avoid}}
.golden .reveal{opacity:1;transform:none}.v2-motion .golden .reveal{opacity:0;transform:translateY(18px);transition:opacity 520ms var(--v2-ease),transform 520ms var(--v2-ease)}.v2-motion .golden .reveal.is-visible{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.v2-motion .golden .reveal{opacity:1;transform:none;transition:none}}
.golden .sentence-builder select{min-width:0;width:100%}