/* Loaded only by the Chinese download page. */
html[lang="zh-CN"] .hero-layout{grid-template-columns:.89fr 1.11fr;gap:44px;padding-top:40px;padding-bottom:36px}
html[lang="zh-CN"] .hero-copy{min-width:0}
html[lang="zh-CN"] .hero h1{font-size:clamp(33px,3.35vw,48px)}
html[lang="zh-CN"] .hero-actions{gap:22px;flex-wrap:wrap}
html[lang="zh-CN"] .desktop-nav{gap:23px}
.tutorial-feature{position:relative;min-width:0;align-self:center;scroll-margin-top:110px;z-index:2}
.tutorial-heading{display:flex;align-items:flex-end;gap:16px;justify-content:space-between;margin-bottom:16px}
.tutorial-kicker{display:flex;align-items:center;gap:9px;color:#7de5e4;font-size:12px;letter-spacing:.14em;margin-bottom:8px;font-weight:550}
.tutorial-kicker>span{width:6px;height:6px;border-radius:50%;background:#72efe5;box-shadow:0 0 12px #70eee9}
.tutorial-heading h2{font-size:clamp(18px,1.8vw,25px);font-weight:600;line-height:1.5;letter-spacing:-.02em;text-wrap:balance;color:#e6efff}
.tutorial-format{font:10px var(--mono);color:#9ab9d3;letter-spacing:.1em;border:1px solid #426477;padding:4px 8px;border-radius:5px;flex-shrink:0;margin-bottom:4px}
.tutorial-lessons{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-bottom:14px}
.tutorial-lesson{min-width:0;padding:13px 14px;text-align:left;color:#a7bfd4;background:#101e30;border:1px solid #2b4259;border-radius:10px;cursor:pointer;font:inherit;transition:border-color .2s,background .2s}
.lesson-top{display:flex;align-items:center;gap:8px;line-height:1.4}.lesson-number{font:10px var(--mono);color:#7b9bb5}.lesson-top strong{font-size:13px;font-weight:600;white-space:nowrap}.lesson-duration{margin-left:auto;font:10px var(--mono);color:#93adc6}.lesson-summary{display:block;font-size:10px;line-height:1.6;margin-top:5px;color:#8ba6bf}
.tutorial-lesson[aria-pressed="true"]{background:#12333e;border-color:#65dcd7;color:#d2fffa;box-shadow:inset 0 0 0 1px #65dcd720}.tutorial-lesson[aria-pressed="true"] .lesson-number,.tutorial-lesson[aria-pressed="true"] .lesson-duration{color:#88e4df}.tutorial-lesson[aria-pressed="true"] .lesson-summary{color:#aacdcf}.tutorial-lesson:hover{border-color:#75c5d0}.tutorial-lesson:focus-visible{outline:3px solid #b9fff4;outline-offset:3px}
.controls-tutorial-link{display:inline-flex;align-items:center;gap:12px;margin:18px 0 0;color:#92e9e1;font-size:13px;font-weight:550}.controls-tutorial-link:hover{color:#d5fffb}.controls-tutorial-link:focus-visible{outline:2px solid #a6fff2;outline-offset:6px}
.tutorial-player{position:relative;aspect-ratio:16/9;width:100%;overflow:hidden;border:1px solid #498995;border-radius:16px;background:#081522;box-shadow:0 0 0 5px #66d4e107,0 20px 60px #0005,0 0 65px #58dfe410}
.tutorial-player video{display:block;width:100%;height:100%;object-fit:contain;background:#081522;border-radius:15px}
.tutorial-player video:focus-visible{outline:3px solid #8cefed;outline-offset:-4px}
.tutorial-play{position:absolute;top:50%;left:57%;transform:translate(-50%,-50%);width:90px;height:90px;padding:0;border:1px solid #c2ffffa8;border-radius:50%;background:linear-gradient(135deg,#aff5f2f2,#67c6ecf0);color:#062834;box-shadow:0 0 0 11px #88e8ec15,0 10px 35px #0005;display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:pointer;gap:4px;transition:box-shadow .2s,filter .2s}
.tutorial-play[hidden]{display:none}
.tutorial-play svg{width:30px;height:30px;fill:currentColor;margin-left:0}
.tutorial-play span{font-size:10px;font-weight:650;letter-spacing:.04em}
.tutorial-play:hover{filter:brightness(1.09);box-shadow:0 0 0 15px #88e8ec20,0 10px 35px #0005}
.tutorial-play:focus-visible{outline:3px solid white;outline-offset:6px}
.tutorial-info{margin-top:16px;padding:0 2px;display:flex;justify-content:space-between;gap:8px 18px;flex-wrap:wrap;line-height:1.7}
.tutorial-info p{font-size:12px;color:#b2c8dc}
.tutorial-info>span{font-size:10px;color:#849eb8}
.tutorial-link{color:#c4f4f0;gap:9px;white-space:nowrap;font-weight:550}
.hero-actions .tutorial-link>span{font-size:13px;width:28px;height:28px;display:grid;place-items:center;border:1px solid #5da2b2;border-radius:50%;padding-left:2px}
.tutorial-error{font-size:12px;color:#c2d2e7;margin-top:10px}.tutorial-error a{color:#8df0e6;text-decoration:underline}
@media(min-width:1600px){html[lang="zh-CN"] .hero-layout{gap:56px;grid-template-columns:.87fr 1.13fr}html[lang="zh-CN"] .hero h1{font-size:51px}.tutorial-heading h2{font-size:26px}}
@media(max-width:1200px){html[lang="zh-CN"] .hero-layout{gap:28px;grid-template-columns:.9fr 1.1fr}html[lang="zh-CN"] .hero-actions{gap:16px}.tutorial-heading{gap:10px}.tutorial-heading h2{font-size:20px}.tutorial-play{width:76px;height:76px}.tutorial-info p{font-size:11px}html[lang="zh-CN"] .desktop-nav{gap:16px}}
@media(max-width:1000px){html[lang="zh-CN"] .hero-layout{gap:24px}html[lang="zh-CN"] .hero h1{font-size:33px}.tutorial-heading h2{font-size:18px}.tutorial-format{display:none}.tutorial-info{gap:6px}.tutorial-player{border-radius:12px}}
@media(max-width:760px){html[lang="zh-CN"] .hero-layout{display:flex;gap:24px;padding-top:22px;padding-bottom:26px}html[lang="zh-CN"] .hero-copy{padding:10px 0 0}html[lang="zh-CN"] .hero .eyebrow{margin-bottom:15px}html[lang="zh-CN"] .hero h1{font-size:clamp(29px,7vw,44px)}html[lang="zh-CN"] .hero-subtitle{margin-top:15px}html[lang="zh-CN"] .hero-description{margin-top:12px;font-size:12px}html[lang="zh-CN"] .hero-actions{margin-top:18px;gap:18px}html[lang="zh-CN"] .hero-meta{margin-top:15px}.tutorial-feature{width:100%;max-width:620px}.tutorial-heading{margin-bottom:12px}.tutorial-kicker{font-size:10px;margin-bottom:5px}.tutorial-heading h2{font-size:18px}.tutorial-format{display:block;font-size:8px}.tutorial-info{margin-top:11px;gap:3px}.tutorial-info p{font-size:10px}.tutorial-info>span{font-size:9px}.tutorial-play{width:67px;height:67px;box-shadow:0 0 0 7px #88e8ec15,0 8px 25px #0005}.tutorial-play svg{width:24px;height:24px}.tutorial-play span{font-size:9px}.hero-actions .tutorial-link>span{width:24px;height:24px;font-size:10px}}
@media(max-width:380px){html[lang="zh-CN"] .hero h1{font-size:29px}html[lang="zh-CN"] .hero-actions{gap:12px}.tutorial-heading h2{font-size:16px}.tutorial-heading{gap:8px}.tutorial-format{padding:3px 5px}.tutorial-info p{font-size:9px}.tutorial-play{width:60px;height:60px}}
@media(max-width:1000px) and (min-width:761px){.tutorial-lesson{padding:10px}.lesson-top{gap:5px}.lesson-top strong{font-size:12px}.lesson-number{display:none}}
@media(max-width:380px){.tutorial-lessons{gap:8px}.tutorial-lesson{padding:10px}.lesson-top{gap:6px}.lesson-top strong{font-size:12px}.lesson-number{display:none}.lesson-duration{font-size:9px}.lesson-summary{font-size:9px}}
@media(prefers-reduced-motion:reduce){.tutorial-play,.tutorial-lesson{transition:none}}