/* OpenTubeForge launch v1 · authored from scratch; no third-party CSS. */
:root{--bg:#0A0C10;--panel:#11161B;--surface:#182027;--ink:#E8EFEA;--muted:#8A9A92;--line:#2B3831;--signal:#00F0FF;--wait:#FF4B2B;--done:#77C6A2;--sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.7 var(--sans);-webkit-font-smoothing:antialiased}a{color:inherit}a:focus-visible,summary:focus-visible{outline:2px solid var(--signal);outline-offset:4px}.width{max-width:1160px;margin:auto;padding:0 clamp(20px,4vw,56px)}.skip{position:fixed;top:-100px;left:16px;z-index:50;padding:12px 18px;background:var(--ink);color:var(--bg);border-radius:4px}.skip:focus{top:14px}
.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:24px;padding:15px clamp(20px,4vw,56px);background:rgba(10,12,16,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}.wordmark{font-weight:740;font-size:19px;letter-spacing:-.04em;text-decoration:none;white-space:nowrap}.topbar nav{display:flex;gap:22px;font-size:14px}.topbar nav a{text-decoration:none;color:var(--muted)}.topbar nav a:hover{color:var(--ink)}.state{margin-left:auto;display:inline-flex;align-items:center;gap:8px;font-size:12px;color:var(--muted);white-space:nowrap}.state i{width:7px;height:7px;border-radius:50%;background:var(--wait)}
.hero{padding:clamp(56px,8vw,110px) 0 72px;background:radial-gradient(circle at 82% 32%,rgba(0,240,255,.06),transparent 34%),var(--bg)}.kicker{margin:0 0 18px;font-size:13px;font-weight:650;color:var(--signal);letter-spacing:.02em}h1{margin:0;max-width:14ch;font-size:clamp(42px,6vw,78px);line-height:1.07;letter-spacing:-.055em;font-weight:750}h1 span{display:inline-block}.lead{margin:28px 0 0;max-width:70ch;font-size:clamp(16px,1.6vw,19px);line-height:1.8;color:var(--muted)}.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:10px 20px;border-radius:4px;text-decoration:none;font-size:14px;font-weight:650;border:1px solid var(--ink)}.button.solid{background:var(--ink);color:var(--bg)}.button.outline{background:var(--panel);color:var(--ink);border-color:var(--line)}.button:hover{border-color:var(--signal)}.honest{margin:18px 0 0;font-size:13px;color:var(--muted)}
.clock{margin:54px 0 0;border:1px solid var(--line);border-top:3px solid var(--signal);background:var(--panel);overflow:hidden}.clock-head{display:flex;justify-content:space-between;gap:12px;padding:13px 20px;border-bottom:1px solid var(--line);font-size:12px;color:var(--muted)}.clock-head strong{color:var(--ink);font-weight:650}.ruler{position:relative;height:66px;margin:12px 22px 0}.ruler:before{content:"";position:absolute;left:0;right:0;top:34px;height:1px;background:var(--line)}.ticks{position:absolute;inset:0;display:grid;grid-template-columns:repeat(9,1fr);align-items:end}.ticks span{position:relative;border-left:1px solid var(--line);height:18px;padding-left:5px;font-variant-numeric:tabular-nums;font-size:11px;color:var(--muted)}.ticks span:nth-child(3n+1){height:30px}.marker{position:absolute;left:50%;top:0;transform:translateX(-50%);color:var(--wait);font-size:12px;font-weight:650;white-space:nowrap}.marker:before{content:"";position:absolute;left:50%;top:20px;height:34px;border-left:2px solid var(--wait)}.tracks{display:grid;grid-template-columns:76px minmax(0,1fr) 86px;border-top:1px solid var(--line)}.tracks>*{border-bottom:1px solid var(--line)}.track{display:contents}.track>b,.track>span,.track>em{padding:15px 14px;font-size:13px;font-style:normal}.track>b{color:var(--muted);font-weight:600;border-right:1px solid var(--line)}.track>em{text-align:right;color:var(--muted)}.track.current>b{color:var(--signal)}.track.current>span{border-left:3px solid var(--signal)}.wave{display:flex;align-items:center;gap:4px;height:52px}.wave i{display:block;width:3px;height:calc(7px + var(--h)*1px);background:var(--muted)}.clip{position:relative;height:52px}.clip:before{content:"";position:absolute;left:12%;width:36%;top:13px;bottom:13px;background:repeating-linear-gradient(90deg,var(--done) 0 13px,transparent 13px 18px);border-radius:3px}.caption{overflow:hidden;white-space:nowrap;text-overflow:ellipsis;align-self:center}.clock figcaption{padding:13px 20px;color:var(--muted);font-size:12px;line-height:1.6}
.section{padding:clamp(64px,8vw,110px) 0}.section.lines{border-top:1px solid var(--line);background:#0C1014}.section h2{margin:0;font-size:clamp(30px,4vw,48px);line-height:1.18;letter-spacing:-.04em;font-weight:730}.section>p,.two>div>p{margin:20px 0 0;max-width:66ch;color:var(--muted);font-size:16px}.section .small{margin-top:18px;font-size:13px;color:var(--muted)}.two{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(36px,7vw,96px);align-items:start}.flow{list-style:none;padding:0;margin:0}.flow li{display:grid;grid-template-columns:46px 1fr;gap:18px;padding:18px 0;border-top:1px solid var(--line)}.flow li:last-child{border-bottom:1px solid var(--line)}.flow>li>span{font-variant-numeric:tabular-nums;color:var(--signal);font-size:13px;font-weight:650}.flow strong{display:block;font-size:18px;font-weight:650}.flow p{margin:5px 0 0;color:var(--muted);font-size:14px;line-height:1.7}
.states{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:38px}.states article{padding:26px;background:var(--panel);border:1px solid var(--line);border-radius:8px}.states article:nth-child(2){background:var(--surface)}.tag{display:inline-block;padding:4px 9px;border:1px solid var(--line);border-radius:4px;font-size:12px;font-weight:650}.tag.done{color:var(--done)}.tag.doing{color:var(--signal)}.tag.wait{color:var(--wait)}.states h3{margin:18px 0 8px;font-size:22px;letter-spacing:-.02em}.states p{margin:0;color:var(--muted);font-size:14px;line-height:1.8}
.openlist{list-style:none;padding:0;margin:0}.openlist li{display:grid;grid-template-columns:92px 1fr;gap:18px;padding:18px 0;border-top:1px solid var(--line);color:var(--muted);font-size:14px}.openlist li:last-child{border-bottom:1px solid var(--line)}.openlist span{color:var(--ink);font-weight:650}.faq{align-items:start}.questions details{border-top:1px solid var(--line)}.questions details:last-child{border-bottom:1px solid var(--line)}.questions summary{cursor:pointer;padding:18px 0;font-weight:650;list-style:none}.questions summary::-webkit-details-marker{display:none}.questions summary:after{content:"+";float:right;color:var(--signal);font-weight:500}.questions details[open] summary:after{content:"−"}.questions p{margin:0 0 18px;color:var(--muted);font-size:14px;line-height:1.8}
footer{border-top:1px solid var(--line);background:var(--panel);padding:32px 0 44px}.footer{display:flex;justify-content:space-between;gap:24px;align-items:flex-start}.footer strong{font-size:19px;letter-spacing:-.03em}.footer p{margin:8px 0 0;color:var(--muted);font-size:13px}.footer>p{text-align:right;max-width:38ch}
@media(max-width:880px){.topbar nav{display:none}.two,.states{grid-template-columns:1fr}.states{gap:12px}.footer{flex-direction:column}.footer>p{text-align:left}}
@media(max-width:600px){.topbar{padding:12px 18px;gap:12px}.state{font-size:11px}.hero{padding-top:54px}.lead br{display:none}.clock-head{flex-direction:column;gap:3px}.ruler{margin-inline:12px}.ticks span:nth-child(even){display:none}.tracks{grid-template-columns:60px minmax(0,1fr) 68px}.tracks b,.tracks span,.tracks em{padding:13px 7px;font-size:12px}.wave i:nth-child(n+9){display:none}.caption{font-size:11px}.openlist li{grid-template-columns:1fr;gap:4px}.section{padding:56px 0}.buttons{flex-direction:column}.actions .button{width:100%}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}
@media(prefers-reduced-motion:no-preference){.hero .kicker,.hero h1,.hero .lead,.hero .actions{opacity:0;transform:translateY(14px);filter:blur(4px);animation:enter .38s cubic-bezier(.23,1,.32,1) forwards}.hero h1{animation-delay:.035s}.hero .lead{animation-delay:.12s}.hero .actions{animation-delay:.2s}.clock{opacity:0;transform:translateY(18px);filter:blur(5px);animation:enter .9s cubic-bezier(.22,1,.36,1) .15s forwards}@keyframes enter{to{opacity:1;transform:none;filter:none}}}