:root{color-scheme:light;--ink:#152b42;--muted:#596b7b;--paper:#f6f8fa;--line:#dce3e9;--blue:#234b70;--accent:#dceded;--white:#fff}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.8}a{color:inherit;text-underline-offset:5px}button,input,textarea{font:inherit}a,button,input,textarea,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid #b8780c;outline-offset:4px}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.35;letter-spacing:-.025em}h1{font-size:clamp(2.2rem,4.4vw,3.9rem);margin-bottom:26px}h2{font-size:clamp(1.6rem,2.7vw,2.2rem);margin-bottom:20px}h3{font-size:1.2rem;margin-bottom:12px}p{margin-bottom:16px}p:last-child{margin-bottom:0}.container{width:min(1120px,calc(100% - 64px));margin:auto}.site-header{border-bottom:1px solid var(--line);background:#fff}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:96px}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-weight:750;font-size:1.1rem;line-height:1.5}.brand small{display:block;font-size:.75rem;font-weight:500;letter-spacing:.04em}.brand-mark{display:grid;place-items:center;background:var(--ink);color:#fff;width:42px;height:42px;border-radius:12px;font-size:1.7rem}.desktop-nav{display:flex;gap:24px;font-size:.9rem}.desktop-nav a,.mobile-nav a{text-decoration:none}.desktop-nav a{padding:12px 0;border-bottom:2px solid transparent}.desktop-nav a[aria-current],.desktop-nav a:hover{border-color:var(--ink)}.mobile-nav{display:none}.skip{position:absolute;top:-100px;left:20px;z-index:5;background:white;padding:8px 20px}.skip:focus{top:10px}.hero{display:grid;grid-template-columns:1.25fr 1fr;gap:64px;align-items:center;padding:80px 0}.eyebrow{font-size:.82rem;letter-spacing:.12em;font-weight:700;color:var(--blue);margin-bottom:20px}.hero h1 span{color:#437476}.lead{font-size:1.1rem;color:var(--muted);max-width:710px}.course-name{font-weight:650}.actions{display:flex;align-items:center;flex-wrap:wrap;gap:24px;margin-top:32px}.button{display:inline-flex;align-items:center;justify-content:center;gap:20px;background:var(--ink);color:#fff;border:1px solid var(--ink);border-radius:9px;padding:13px 22px;min-height:48px;text-decoration:none;font-weight:650;cursor:pointer}.button:hover{background:var(--blue)}.text-link{font-weight:650;font-size:.95rem}.workflow{background:var(--white);border:1px solid var(--line);border-radius:24px;padding:32px;box-shadow:0 15px 40px #152b4208}.workflow h2{margin-bottom:12px}.flow-list{list-style:none;padding:0;margin:24px 0;display:grid;gap:12px}.flow-list li{display:flex;align-items:center;justify-content:space-between;gap:12px;background:var(--paper);border-left:3px solid #6d9395;border-radius:4px 10px 10px 4px;padding:15px}.flow-list li span{font-size:.88rem;color:var(--muted)}.workflow-note{border-top:1px solid var(--line);padding-top:20px;font-size:.85rem}.section{padding:48px 0;border-top:1px solid var(--line)}.section-heading{margin-bottom:28px}.section-heading h2{margin-bottom:12px}.grid{display:grid;gap:24px}.two{grid-template-columns:repeat(2,minmax(0,1fr))}.three{grid-template-columns:repeat(3,minmax(0,1fr))}.card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:28px}.card p{color:var(--muted)}.subtle{background:#edf1f4}.tag{display:inline-block;font-size:.75rem;background:var(--accent);padding:3px 10px;border-radius:5px;margin-bottom:20px}.muted{color:var(--muted)}.price-card{border-radius:20px;padding:36px;background:var(--ink);color:white;align-self:start}.price-card .eyebrow{color:#bfd8df}.price{font-size:3.6rem;line-height:1.2;letter-spacing:-.04em;font-weight:750;margin:24px 0}.price-card hr{border:0;border-top:1px solid #ffffff35;margin:26px 0}.price-card ul{padding-left:22px;margin-bottom:28px}.light{background:#fff;color:var(--ink);border-color:white}.light:hover{background:var(--accent)}.price-link{display:block;margin-top:18px;font-size:.9rem}.facts{display:grid;grid-template-columns:90px minmax(0,1fr);gap:16px;margin:24px 0}.facts dt{color:var(--muted)}dd{margin:0}.todo{background:#fff0bc;color:#69480c;border:1px dashed #ba8d24;padding:3px 5px;border-radius:4px;font-size:.9rem;line-height:2;box-decoration-break:clone;-webkit-box-decoration-break:clone;overflow-wrap:anywhere}.teacher{display:flex;gap:28px;align-items:center}.photo-placeholder{display:grid;place-items:center;min-height:150px;width:150px;flex-shrink:0;border:1px dashed #a9b5bf;border-radius:16px;background:#edf1f4}.cta-bar{display:flex;align-items:center;justify-content:space-between;gap:28px;margin:32px 0 64px;padding:32px;border-radius:18px;background:#e6eeef}.cta-bar h2{font-size:1.5rem;margin-bottom:10px}.site-footer{border-top:1px solid var(--line);padding:30px 0;font-size:.8rem}.footer-inner{display:flex;justify-content:space-between;gap:24px;align-items:center}.draft{padding:6px 12px;border:1px solid #bdc9d2;border-radius:6px;white-space:nowrap}.page-intro{padding:64px 0 40px;max-width:850px}.page-intro h1{font-size:clamp(2rem,4vw,3.2rem)}.syllabus-list{display:grid;gap:20px}.module{padding:30px;background:#fff;border:1px solid var(--line);border-radius:16px}.module-heading{display:flex;gap:18px;align-items:baseline;margin-bottom:20px}.module-heading h2{font-size:1.4rem;margin:0}.module-num{font-size:1.4rem;color:#65888b;font-variant-numeric:tabular-nums}.module h3{font-size:.9rem}.module .grid p{color:var(--muted)}.duration{border-top:1px solid var(--line);padding-top:16px;margin-top:22px;font-size:.85rem;color:var(--muted)}.policy-list{display:grid;grid-template-columns:180px minmax(0,1fr);margin:0}.policy-list dt,.policy-list dd{padding:18px 0;border-bottom:1px solid var(--line)}.faq-list{max-width:850px;margin-bottom:48px}.faq-list details{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px}.faq-list summary{padding:20px 24px;cursor:pointer;font-weight:650}.faq-list details[open] summary{border-bottom:1px solid var(--line)}.answer{padding:20px 24px;color:var(--muted)}.signup-layout{grid-template-columns:1.4fr 1fr;gap:48px;margin-bottom:56px}.notice{background:#edf3f5;border-left:3px solid #678b98;padding:14px;font-size:.9rem}.form-card h2{font-size:1.5rem}label{display:block;margin:22px 0 8px;font-weight:650}input,textarea{width:100%;border:1px solid #aebdc9;border-radius:8px;background:#fff;padding:11px 12px;color:var(--ink);min-width:0}textarea{resize:vertical}input::placeholder,textarea::placeholder{color:#657480}form .button{margin-top:24px}#form-status{margin-top:20px;padding:16px;background:#e6f1e9;border-radius:8px;color:#254e38}
@media(max-width:900px){.desktop-nav{gap:14px;font-size:.82rem}.hero{gap:28px}.flow-list li{align-items:flex-start;flex-direction:column;gap:2px}.three{grid-template-columns:1fr}.signup-layout{gap:28px}}
@media(max-width:700px){.container{width:calc(100% - 36px)}.header-inner{min-height:80px;gap:12px}.brand{font-size:1rem;gap:8px}.brand small{font-size:.65rem}.brand-mark{width:34px;height:38px}.desktop-nav{display:none}.mobile-nav{display:block;position:relative}.mobile-nav summary{cursor:pointer;padding:10px 4px;font-size:.9rem}.mobile-nav nav{position:absolute;right:0;top:50px;width:190px;padding:10px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 12px 30px #152b421a;z-index:3}.mobile-nav a{display:block;padding:10px 12px;border-radius:6px}.mobile-nav a[aria-current]{background:var(--paper);font-weight:700}.hero{grid-template-columns:1fr;padding:42px 0;gap:36px}.hero h1{font-size:clamp(1.8rem,8.4vw,2.8rem)}.lead{font-size:1rem}.workflow{padding:24px}.flow-list li{flex-direction:row;align-items:center}.flow-list li span{font-size:.8rem}.two,.signup-layout{grid-template-columns:1fr}.section{padding:32px 0}.card{padding:24px}.price-card{padding:28px}.teacher{align-items:flex-start;gap:18px}.photo-placeholder{width:110px;min-height:130px}.cta-bar{flex-direction:column;align-items:flex-start;padding:24px;margin-bottom:40px}.footer-inner{flex-direction:column;align-items:flex-start;gap:12px}.page-intro{padding:40px 0 28px}.module{padding:24px}.module-heading{gap:12px}.policy-list{grid-template-columns:110px minmax(0,1fr);gap:0 12px}.faq-list summary{padding:18px}.answer{padding:18px}.signup-layout{margin-bottom:32px}.facts{grid-template-columns:80px minmax(0,1fr);gap:14px}.actions{gap:18px}}

.teacher-photo{width:180px;height:auto;flex-shrink:0;border-radius:16px;object-fit:cover;background:#1d2b28}.bio{margin:0 0 12px;padding-left:20px;color:var(--muted)}@media(max-width:700px){.teacher{flex-direction:column}.teacher-photo{width:160px}}