.native-skill-intro-dialog {box-sizing:border-box;position:fixed;inset:0;width:100%;max-width:none;height:100dvh;max-height:none;margin:0;padding:0;border:0;background:#111;color:#f6f6f6;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC",sans-serif;overscroll-behavior:none;}
.native-skill-intro-dialog::backdrop {background:#111;}
.native-skill-intro-dialog[open] {display:flex;flex-direction:column;}
.native-skill-intro-header {display:grid;grid-template-columns:44px minmax(0,1fr) 44px;align-items:center;gap:8px;flex-shrink:0;padding:calc(max(var(--native-safe-top,0px),env(safe-area-inset-top,0px)) + 8px) 16px 12px;}
.native-skill-intro-header h1 {margin:0;font-size:19px;font-weight:600;line-height:1.4;text-align:center;outline:0;overflow-wrap:anywhere;}
.native-skill-intro-header button {display:grid;place-items:center;width:44px;height:44px;padding:0;border:0;background:transparent;color:#fff;cursor:pointer;}
.native-skill-intro-scroll {min-height:0;flex:1;overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;padding:8px 20px 24px;scrollbar-width:thin;}
.native-skill-intro-dialog h2 {margin:0 0 13px;font-size:18px;font-weight:600;line-height:1.4;}
.native-skill-intro-badges {display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin:4px 0 20px;}
.native-skill-intro-badges > span {display:inline-flex;align-items:center;justify-content:center;gap:7px;max-width:100%;padding:7px 12px;border:1px solid #414141;border-radius:999px;background:#202020;color:#c5c5c5;font-size:13px;line-height:1.4;text-align:center;}
.native-skill-intro-badges svg {flex-shrink:0;}
.native-skill-intro-dialog .native-skill-intro-preview-title {margin:0 0 12px;font-size:17px;}
.native-skill-intro-preview-section {--native-skill-preview-height:min(54dvh,max(180px,calc(100dvh - 360px - max(var(--native-safe-top,0px),env(safe-area-inset-top,0px)) - max(var(--native-safe-bottom,0px),env(safe-area-inset-bottom,0px)))));}
.native-skill-intro-preview {position:relative;width:min(92%,calc(var(--native-skill-preview-height) * var(--native-skill-preview-ratio,.75)));max-width:100%;max-height:var(--native-skill-preview-height);margin:0 auto;overflow:hidden;border-radius:18px;background:#252525;}
.native-skill-intro-preview :is(.skill-demo,.skill-cover-video-fill,.skill-cover-image-fill) {display:block;width:100%;height:100%;aspect-ratio:auto;}
.native-skill-intro-preview :is(img,video),.native-skill-intro-preview > .skill-demo > svg {display:block;width:100%;height:100%;object-fit:contain;}
.native-skill-intro-preview :is(.skill-demo-frame,.skill-demo-caption) {display:none;}
.native-skill-intro-preview .skill-cover-sound {width:42px;height:42px;right:12px;bottom:12px;}
.native-skill-intro-preview .skill-cover-video-fill {position:static;}
.native-skill-intro-preview > .skill-cover-sources {position:absolute;left:12px;bottom:12px;z-index:2;gap:6px;max-width:calc(100% - 88px);margin:0;}
.native-skill-intro-preview > .skill-cover-sources img {box-sizing:border-box;flex-shrink:1;min-width:0;width:clamp(40px,13vw,54px);height:auto;aspect-ratio:27/35;border-radius:8px;object-fit:fill;background:#181818;}
.native-skill-intro-preview.has-reference-sources .skill-cover-audio-notice {bottom:90px;}
.native-skill-intro-requirement {display:flex;align-items:flex-start;justify-content:center;gap:9px;margin:18px 0 0;color:#e0e0e0;font-size:14px;line-height:1.65;}
.native-skill-intro-requirement > svg {flex-shrink:0;margin-top:2px;color:#55b65f;}
.native-skill-intro-footer {flex-shrink:0;padding:14px 20px calc(max(env(safe-area-inset-bottom,0px),var(--native-safe-bottom,0px)) + 12px);border-top:1px solid #303030;background:#111;}
.native-skill-intro-footer > button {width:100%;min-height:54px;border:0;border-radius:999px;background:linear-gradient(105deg,#8a26e7,#4b83b5);color:#fff;font:inherit;font-size:18px;font-weight:600;cursor:pointer;}
.native-skill-intro-footer > button:disabled {opacity:.6;cursor:wait;}
.native-skill-intro-footer > p {margin:0 0 10px;color:#ffb0a7;font-size:13px;line-height:1.5;}
.native-skill-intro-dialog button:focus-visible {outline:2px solid #bca3ff;outline-offset:3px;}
@media(min-width:650px){.native-skill-intro-dialog {max-width:560px;left:50%;right:auto;transform:translateX(-50%);}.native-skill-intro-scroll {padding-left:24px;padding-right:24px;}}