body{margin:0;background:#f8f6ef;color:#173f39;font-family:system-ui,-apple-system,"PingFang SC",sans-serif}.video-page{max-width:1100px;margin:auto;padding:32px 28px 48px}nav{display:flex;justify-content:space-between;gap:24px;font-size:14px}a{color:#195c50;text-decoration:none}a:hover{text-decoration:underline}a:focus-visible{outline:3px solid #c77e65;outline-offset:5px}header{padding:48px 0 28px}.kicker{font-size:12px;letter-spacing:.16em}h1{font-family:"Songti SC",serif;font-size:clamp(32px,5vw,54px);margin:14px 0}header>p:not(.kicker),.hint{color:#637a70;line-height:1.8}.duration{display:inline-block;background:#e7ece2;border-radius:30px;padding:8px 15px;font-size:13px}.video-shell{overflow:hidden;border-radius:24px;border:1px solid #d9dfd3;background:#153c35;box-shadow:0 22px 64px #153c3517}video{width:100%;aspect-ratio:16/9;display:block}.hint{font-size:14px;margin:20px 0 32px}footer{border-top:1px solid #d9dfd3;padding-top:24px}@media(max-width:500px){.video-page{padding:24px 16px}nav{font-size:12px;gap:12px}header{padding-top:32px}.video-shell{border-radius:16px}}