/* RapToVideo 全站样式。首页来自定稿 demo film.html：方向①“MV 片场”全屏样片 + ③唱片封面条；
   电脑点按钮后左半边原地变表单（也可直接拖照片进来），手机样片铺满整屏、表单在底部弹层。 */
:root {
  --ink: #312d28; --bg2: #3a3630; --panel: #443f38; --panel2: #4f4a42; --line: rgba(255,255,255,.16);
  --chalk: #f7f4ec; --mute: #d6d2c6; --dim: #a39e91;
  --acid: #e4ff3c; --red: #ff3b2f; --pink: #ff5fa2; --cyan: #3cf0ff;
  --display: "Anton", Impact, sans-serif; --body: "Space Grotesk", system-ui, sans-serif; --mono: "JetBrains Mono", ui-monospace, monospace;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body { background: var(--ink); color: var(--chalk); font: 16px/1.55 var(--body); overflow-x: hidden; min-height: 100vh; }
button, input { font: inherit; color: inherit; }
.wrap { max-width: 1240px; margin: 0 auto; padding: 0 20px; }
.mono { font: 500 11px var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.skip { position: absolute; left: -999px; top: 8px; z-index: 200; background: var(--acid); color: var(--ink); padding: 8px 12px; border-radius: 8px; }
.skip:focus { left: 12px; }

/* ===== 页头：普通页吸顶；首页浮在首屏画面上 ===== */
.nav { position: sticky; top: 0; z-index: 50; background: rgba(49,45,40,.84); backdrop-filter: blur(14px); border-bottom: 1px solid rgba(255,255,255,.08); }
.nav .wrap { max-width: 1360px; height: 64px; display: flex; align-items: center; gap: 26px; padding: 0 32px; }
.home .nav { position: fixed; left: 0; right: 0; background: linear-gradient(rgba(49,45,40,.5), transparent); border: 0; backdrop-filter: none; transition: background .25s, backdrop-filter .25s; }
.home.scrolled .nav { background: rgba(49,45,40,.72); -webkit-backdrop-filter: blur(18px) saturate(1.4); backdrop-filter: blur(18px) saturate(1.4); border-bottom: 1px solid rgba(255,255,255,.08); }
.logo { font: 400 24px var(--display); display: flex; align-items: center; color: var(--chalk); text-decoration: none; }
.logo .play { display: inline-grid; place-items: center; width: 24px; height: 24px; margin: 0 4px; border-radius: 6px; background: var(--acid); color: var(--ink); font-size: 11px; transform: rotate(-6deg); transition: transform .3s; }
.logo:hover .play, body.rec .logo .play { transform: rotate(354deg); }
.nav nav { display: flex; gap: 22px; font-size: 14px; color: var(--mute); }
.nav nav a { color: inherit; text-decoration: none; } .nav nav a:hover, .nav nav a[aria-current] { color: var(--chalk); }
.nav .right { margin-left: auto; display: flex; gap: 10px; align-items: center; }
.pill { border: 1px solid var(--line); border-radius: 99px; padding: 7px 14px; font-size: 13px; color: var(--chalk); text-decoration: none; background: rgba(0,0,0,.25); backdrop-filter: blur(8px); cursor: pointer; }
.pill.acid { background: var(--acid); color: var(--ink); border-color: var(--acid); font-weight: 700; }
.nav .credits { display: none; align-items: center; gap: 6px; font: 700 12px var(--mono); color: var(--acid); border: 1px solid rgba(228,255,60,.4); border-radius: 99px; padding: 6px 12px; text-decoration: none; background: rgba(0,0,0,.25); }
.signed .nav .credits { display: inline-flex; }
.signed .nav .login { display: none; }
.nav .avatar { display: none; width: 32px; height: 32px; border-radius: 50%; background: var(--panel) center/cover; border: 1px solid var(--line); }
.signed .nav .avatar { display: block; }

/* ===== 首屏：整屏是样片 ===== */
.hero { position: relative; height: 100vh; min-height: 680px; max-height: 1000px; overflow: hidden; overflow: clip; isolation: isolate; } /* clip：点唱片 scrollIntoView 时不把整个首屏横向滚走 */
#bg { position: absolute; inset: -40px; width: calc(100% + 80px); height: calc(100% + 80px); filter: blur(36px) brightness(1) saturate(1.35); z-index: -2; }
.hero::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgba(49,45,40,.62) 0%, rgba(49,45,40,.3) 42%, rgba(49,45,40,0) 75%), linear-gradient(transparent 60%, rgba(49,45,40,.96) 100%); }
.grain { position: absolute; inset: 0; z-index: 0; pointer-events: none; opacity: .08; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); }
.stage { position: relative; z-index: 1; height: 100%; max-width: 1360px; margin: 0 auto; padding: 96px 40px 230px; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 48px; align-items: center; }
.np { display: flex; align-items: center; gap: 10px; font: 700 12px var(--mono); letter-spacing: .14em; color: var(--mute); }
.np::before { content: ""; width: 9px; height: 9px; border-radius: 50%; background: var(--red); animation: blink 1.2s infinite; }
@keyframes blink { 50% { opacity: .25; } }
.np b { color: var(--acid); font-weight: 700; }
.hero h1 { font: 500 clamp(18px, 1.6vw, 22px)/1.2 var(--body); color: var(--mute); margin: 18px 0 6px; }
.hero h1 em { font-style: normal; color: var(--chalk); }
.sname { font: 400 clamp(84px, 11.5vw, 188px)/.84 var(--display); text-transform: uppercase; letter-spacing: -.005em; min-height: 1.7em; display: flex; flex-wrap: wrap; align-content: flex-end; transition: font-size .45s cubic-bezier(.2,1,.3,1); }
.sname .w { display: inline-flex; margin-right: .18em; white-space: nowrap; }
.sname .w.acid { color: var(--acid); }
.sname .w span { display: inline-block; transform: translateY(110%); opacity: 0; animation: up .55s cubic-bezier(.2,1,.3,1) forwards; }
@keyframes up { to { transform: none; opacity: 1; } }
.desc { color: var(--mute); font-size: 18px; max-width: 520px; margin: 18px 0 26px; min-height: 3.2em; }
.desc b { color: var(--chalk); font-weight: 500; }
.ctas { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.go { border: 0; background: var(--acid); color: var(--ink); font: 700 18px var(--body); padding: 17px 28px; border-radius: 99px; cursor: pointer; box-shadow: 6px 6px 0 var(--red); transition: transform .15s, box-shadow .15s; }
.go:hover { transform: translate(-2px, -2px); box-shadow: 8px 8px 0 var(--red); }
.ctas small { font: 500 12px var(--mono); color: var(--mute); line-height: 1.5; }
.ctas small b { color: var(--acid); font-weight: 700; }
.meta { display: flex; gap: 8px; margin-top: 22px; flex-wrap: wrap; }
.meta span { font: 500 11px var(--mono); letter-spacing: .08em; text-transform: uppercase; padding: 5px 10px; border-radius: 99px; border: 1px solid var(--line); background: rgba(0,0,0,.25); backdrop-filter: blur(6px); }

/* 竖屏样片 */
.pwrap { position: relative; }
.player { position: relative; height: min(64vh, 620px); aspect-ratio: 9/16; border-radius: 24px; overflow: hidden; background: #000; box-shadow: 0 40px 90px -30px rgba(0,0,0,.85), 0 0 0 1px rgba(255,255,255,.12); transform: rotate(2.2deg); transition: transform .4s, box-shadow .3s; }
.player:hover { transform: rotate(0) scale(1.01); }
.player canvas, .player video { display: block; width: 100%; height: 100%; object-fit: cover; }
.player .tag { position: absolute; top: 12px; left: 12px; font: 700 10px var(--mono); letter-spacing: .1em; background: rgba(0,0,0,.45); padding: 5px 9px; border-radius: 99px; backdrop-filter: blur(6px); }
.player .snd { position: absolute; top: 12px; right: 12px; z-index: 2; border: 0; font: 700 11px var(--mono); padding: 6px 10px; border-radius: 99px; background: var(--acid); color: var(--ink); cursor: pointer; }
.player .bar { position: absolute; left: 12px; right: 12px; bottom: 12px; height: 3px; border-radius: 3px; background: rgba(255,255,255,.25); overflow: hidden; }
.player .bar i { display: block; height: 100%; width: 0; background: var(--acid); }
.player .duo { position: absolute; left: 0; right: 0; bottom: 28px; text-align: center; font: 400 32px var(--display); text-transform: uppercase; text-shadow: 0 2px 10px rgba(0,0,0,.8); pointer-events: none; }
.player .duo em, .dprev .duo em { font-style: normal; color: var(--acid); }
.player.mine { box-shadow: 0 0 0 3px var(--acid), 0 40px 90px -30px rgba(0,0,0,.85); }
.arrow { position: absolute; top: 50%; width: 44px; height: 44px; margin-top: -22px; border-radius: 50%; border: 1px solid var(--line); background: rgba(0,0,0,.45); backdrop-filter: blur(8px); cursor: pointer; font-size: 20px; z-index: 2; }
.arrow.prev { left: -64px; } .arrow.next { right: -64px; }
.arrow:hover { background: var(--acid); color: var(--ink); }

/* 唱片封面条 */
.records { position: absolute; z-index: 2; left: 0; right: 0; bottom: 0; padding: 0 40px 26px; }
.records .in { max-width: 1360px; margin: 0 auto; display: flex; align-items: flex-end; gap: 28px; }
.rlabel { font: 700 11px var(--mono); letter-spacing: .14em; color: var(--mute); writing-mode: vertical-rl; transform: rotate(180deg); padding-bottom: 6px; }
.side { display: flex; gap: 14px; align-items: flex-end; }
.records .in > div + div { padding-left: 28px; border-left: 1px dashed var(--line); }
.slbl { font: 700 10px var(--mono); letter-spacing: .14em; color: var(--dim); margin-bottom: 24px; }
.rec { position: relative; display: block; width: 112px; height: 112px; border: 0; padding: 0; background: none; cursor: pointer; flex: none; color: var(--chalk); text-decoration: none; transition: transform .3s cubic-bezier(.2,1.4,.4,1), margin .3s; }
.rec .vinyl { display: block; position: absolute; z-index: 0; top: 4px; left: 4px; width: 104px; height: 104px; border-radius: 50%; background: conic-gradient(from 20deg, transparent 0 8%, rgba(255,255,255,.16) 12%, transparent 17% 52%, rgba(255,255,255,.1) 57%, transparent 62%), radial-gradient(circle, #141210 0 21%, #1d1c19 22% 100%); box-shadow: inset 0 0 0 1px rgba(255,255,255,.1), 0 10px 22px -10px #000; transition: transform .45s cubic-bezier(.2,1,.3,1); }
.rec .vinyl::after { content: ""; position: absolute; inset: 0; border-radius: 50%; background: repeating-radial-gradient(circle, transparent 0 3px, rgba(255,255,255,.05) 3px 4px); -webkit-mask: radial-gradient(circle, transparent 0 22%, #000 23%); mask: radial-gradient(circle, transparent 0 22%, #000 23%); }
/* 中心标签：网站 logo 的荧光黄 + 播放三角，转起来一眼能看出来 */
.rec .vinyl::before { content: ""; position: absolute; inset: 30%; border-radius: 50%; z-index: 1; background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 40 40'%3E%3Ccircle cx='20' cy='20' r='20' fill='%23e4ff3c'/%3E%3Ccircle cx='20' cy='20' r='17' fill='none' stroke='%23141210' stroke-width='1' opacity='.35'/%3E%3Cpath d='M15 11.5 29 20 15 28.5Z' fill='%23141210'/%3E%3Ccircle cx='20' cy='20' r='1.6' fill='%23f4f1e8'/%3E%3C/svg%3E") center / 100% no-repeat; }
.rec .sleeve { display: block; position: relative; z-index: 1; width: 112px; height: 112px; border-radius: 6px; overflow: hidden; box-shadow: 0 14px 30px -12px #000, 0 0 0 1px rgba(255,255,255,.1); background: #222; }
.rec canvas { position: absolute; left: 0; top: 0; width: 100%; height: 100%; }
.rec .no { position: absolute; top: 6px; left: 7px; font: 700 10px var(--mono); color: #fff; text-shadow: 0 1px 2px #000; }
.rec .nm { position: absolute; left: 7px; right: 34px; bottom: 6px; font: 400 16px/.95 var(--display); text-transform: uppercase; text-align: left; color: #fff; text-shadow: 0 2px 6px rgba(0,0,0,.7); }
.rec .stk { position: absolute; top: 6px; right: 6px; font: 700 8px var(--mono); letter-spacing: .06em; padding: 3px 5px; border-radius: 3px; background: var(--red); color: #fff; transform: rotate(4deg); }
.rec .stk.acid { background: var(--acid); color: var(--ink); }
.rec .xb { position: absolute; right: 5px; bottom: 6px; font: 700 5.5px/1.1 var(--mono); border: 1px solid #fff; color: #fff; padding: 2px 3px; text-align: center; background: rgba(0,0,0,.55); }
.rec:hover { transform: translateY(-8px); }
.rec:hover .vinyl, .rec.on .vinyl { transform: translateX(58px) rotate(120deg); }
.rec.on .vinyl { animation: spin 2.4s linear infinite; }
@keyframes spin { from { transform: translateX(58px) rotate(0); } to { transform: translateX(58px) rotate(360deg); } }
.rec.on { transform: translateY(-14px); margin-right: 58px; }
.rec.on .sleeve { box-shadow: 0 0 0 3px var(--acid), 0 18px 34px -12px #000; }
.rec.sug .sleeve { display: grid; place-items: center; background: rgba(255,255,255,.04); border: 1.5px dashed var(--line); box-shadow: none; font: 700 11px/1.3 var(--mono); color: var(--mute); text-align: center; padding: 8px; }

/* ===== 制作表单（电脑在首屏左半边，手机在底部弹层） ===== */
.copy { position: relative; }
#heroForm { display: none; }
.making #heroForm { display: block; animation: fin .45s cubic-bezier(.2,1,.3,1); }
@keyframes fin { from { opacity: 0; transform: translateY(16px); } }
.making .desc, .making .ctas, .making .meta, .making .hero h1 { display: none; }
.making .sname { font-size: 46px; min-height: 0; margin: 8px 0 4px; }
.making .stage { align-items: start; padding-top: 96px; }
.making .records { opacity: .55; transition: opacity .2s; }
.making .records:hover { opacity: 1; }
.making .hero { height: auto; min-height: 100vh; max-height: none; }
.dform h2 { font: 400 34px/1 var(--display); text-transform: uppercase; }
.dform h2 em { font-style: normal; color: var(--acid); }
.dform .sub { color: var(--mute); margin: 6px 0 18px; max-width: 520px; }
#heroForm .mk h2 { display: none; }
#heroForm .mk .sub { margin: 4px 0 12px; }
.back { background: none; border: 0; color: var(--acid); font: 700 12px var(--mono); letter-spacing: .06em; cursor: pointer; padding: 0; margin-bottom: 4px; }
#drawerForm .back { display: none; }
.photos { display: grid; grid-template-columns: 168px 44px 168px; gap: 12px; }
.slot label { position: relative; display: grid; place-items: center; aspect-ratio: 4/5; border-radius: 16px; border: 1.5px dashed #8a867b; cursor: pointer; overflow: hidden; text-align: center; color: var(--mute); background: rgba(0,0,0,.25); transition: border-color .2s; }
.slot label:hover { border-color: var(--acid); }
.slot.f label { border-style: solid; border-color: var(--acid); }
.slot img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.slot .ph i { display: grid; place-items: center; width: 42px; height: 42px; margin: 0 auto 6px; border-radius: 12px; background: var(--acid); color: var(--ink); font-style: normal; font-weight: 700; font-size: 20px; }
.slot input[type=file] { position: absolute; width: 1px; height: 1px; opacity: 0; }
.slot .side-t { position: absolute; top: 8px; left: 8px; z-index: 2; font: 700 10px var(--mono); padding: 3px 8px; border-radius: 99px; background: var(--acid); color: var(--ink); }
.slot.b .side-t { background: var(--pink); }
.slot input.name { width: 100%; margin-top: 8px; background: #2e2d28; border: 1px solid #4a4943; border-radius: 10px; padding: 9px 11px; }
.checks { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 6px; min-height: 0; }
.checks span { font: 600 10px var(--mono); padding: 2px 6px; border-radius: 99px; background: rgba(228,255,60,.12); color: var(--acid); }
.checks span.warn { background: rgba(255,179,107,.15); color: #ffb36b; }
.swap { margin-top: 82px; width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--line); background: #2e2d28; cursor: pointer; font-size: 17px; }
.hint { font: 12px var(--mono); color: var(--dim); margin-top: 8px; max-width: 520px; }
.consent { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; color: var(--mute); margin: 14px 0 0; cursor: pointer; max-width: 520px; }
.consent.gift { margin-top: 8px; margin-bottom: 14px; }
.consent input { width: 18px; height: 18px; accent-color: var(--acid); margin-top: 2px; flex: none; }
.btn { border: 0; border-radius: 16px; padding: 14px 18px; font: 700 17px var(--body); cursor: pointer; text-align: left; width: 100%; max-width: 420px; }
.btn small { display: block; font: 500 11px var(--mono); opacity: .75; margin-top: 2px; }
.btn.full { background: var(--acid); color: var(--ink); box-shadow: 5px 5px 0 var(--red); }
.btn[disabled] { opacity: .4; cursor: not-allowed; box-shadow: none; }
.need { font: 12px var(--mono); color: var(--mute); margin-top: 10px; min-height: 16px; }
.promise { display: flex; flex-wrap: wrap; gap: 6px 16px; margin-top: 8px; font: 12px var(--mono); color: var(--dim); }
.promise span::before { content: "✓ "; color: var(--acid); }
.dz-hint { color: var(--mute); }
.dropzone { position: absolute; inset: -18px; z-index: 5; display: none; place-items: center; text-align: center; border: 2px dashed var(--acid); border-radius: 26px; background: rgba(49,45,40,.8); backdrop-filter: blur(6px); }
.dropzone b { display: block; font: 400 54px/1 var(--display); text-transform: uppercase; color: var(--acid); }
.dropzone span { color: var(--mute); font: 500 13px var(--mono); }
.dragging .dropzone { display: grid; }

/* 手机：底部弹层 */
.scrim { position: fixed; inset: 0; z-index: 60; background: rgba(20,18,16,.5); backdrop-filter: blur(4px); opacity: 0; pointer-events: none; transition: opacity .3s; }
.scrim.on { opacity: 1; pointer-events: auto; }
.drawer { position: fixed; z-index: 61; left: 50%; bottom: 0; width: min(1080px, 100%); transform: translate(-50%, 102%); transition: transform .45s cubic-bezier(.2,1,.3,1); background: var(--bg2); border: 1px solid var(--line); border-bottom: 0; border-radius: 22px 22px 0 0; padding: 20px 16px 24px; max-height: 94vh; overflow: auto; visibility: hidden; }
.drawer.on { transform: translate(-50%, 0); visibility: visible; }
.drawer .x { position: absolute; top: 14px; right: 16px; width: 38px; height: 38px; border-radius: 50%; border: 1px solid var(--line); background: none; cursor: pointer; font-size: 18px; }
.dprev { position: relative; border-radius: 18px; overflow: hidden; aspect-ratio: 9/16; width: 150px; margin: 0 auto 14px; }
.dprev canvas { display: block; width: 100%; height: 100%; }
.dprev .duo { position: absolute; left: 0; right: 0; bottom: 14px; text-align: center; font: 400 20px var(--display); text-transform: uppercase; text-shadow: 0 2px 8px rgba(0,0,0,.8); }

/* ===== 首屏下方 ===== */
.how { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; padding: 64px 0 0; }
.how div { border-top: 2px solid var(--acid); padding-top: 14px; }
.how b { font: 400 30px/1 var(--display); text-transform: uppercase; display: block; margin-bottom: 6px; }
.how p { color: var(--mute); }

/* 正文 */
.content { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 56px; padding: 60px 0 40px; }
.prose { font-size: 17px; line-height: 1.7; }
.prose > h2 { font: 400 clamp(30px, 3.6vw, 44px)/1 var(--display); text-transform: uppercase; margin: 54px 0 16px; letter-spacing: .005em; scroll-margin-top: 90px; }
.prose > h2:first-child { margin-top: 0; }
.prose > h2 em { font-style: normal; color: var(--acid); }
.prose h3 { font: 700 20px/1.3 var(--body); margin: 26px 0 8px; }
.prose p, .prose li { color: #d9d5c9; }
.prose p { margin-bottom: 14px; }
.prose ul, .prose ol { margin: 0 0 18px 1.2em; }
.prose li { margin-bottom: 6px; }
.prose a { color: var(--acid); }
.prose strong { color: var(--chalk); }
.steps-list { list-style: none; margin: 0 0 20px !important; display: grid; gap: 12px; counter-reset: s; }
.steps-list li { counter-increment: s; display: grid; grid-template-columns: 48px 1fr; gap: 14px; background: var(--panel); border: 1px solid rgba(255,255,255,.07); border-radius: 16px; padding: 16px; margin: 0; }
.steps-list li::before { content: counter(s); width: 48px; height: 48px; border-radius: 12px; background: var(--acid); color: var(--ink); display: grid; place-items: center; font: 400 26px var(--display); }
.steps-list b { display: block; color: var(--chalk); font-size: 18px; margin-bottom: 2px; }
.table-wrap { overflow-x: auto; margin: 10px 0 22px; }
.prose table { width: 100%; border-collapse: separate; border-spacing: 0; background: var(--panel); border: 1px solid rgba(255,255,255,.08); border-radius: 16px; overflow: hidden; font-size: 15px; min-width: 480px; }
.prose th, .prose td { text-align: left; padding: 12px 14px; border-bottom: 1px solid rgba(255,255,255,.07); vertical-align: top; }
.prose tr:last-child td { border-bottom: 0; }
.prose th { font: 700 11px var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--mute); background: var(--panel2); }
.stage-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 10px 0 20px; }
.stage-list > div { position: relative; background: var(--panel); border: 1px solid rgba(255,255,255,.07); border-radius: 14px; padding: 16px 16px 14px; }
.stage-list h3 { margin: 0 0 4px; font: 400 24px/1 var(--display); text-transform: uppercase; padding-right: 40px; }
.stage-list p { margin: 0; font-size: 15px; color: var(--mute); }
.stage-list .sl-no { position: absolute; top: 14px; right: 14px; font: 700 11px var(--mono); color: var(--acid); }
.stage-list .sl-meta { font: 500 12px var(--mono); color: var(--dim); margin-top: 8px; }
.stage-list .sl-bars { margin-top: 8px; padding-left: 10px; border-left: 2px solid var(--pink); color: var(--chalk); font-size: 14px; font-style: italic; }
.callout { border-left: 4px solid var(--acid); background: rgba(228,255,60,.06); border-radius: 0 14px 14px 0; padding: 14px 18px; margin: 18px 0; }
.aside { position: sticky; top: 86px; align-self: start; display: grid; gap: 16px; }
.side-card { background: var(--panel); border: 1px solid rgba(255,255,255,.08); border-radius: 20px; padding: 20px; }
.side-card h3 { font: 400 26px/1 var(--display); text-transform: uppercase; margin-bottom: 8px; }
.side-card p { color: var(--mute); font-size: 14px; margin-bottom: 14px; }
.side-card.acid { background: var(--acid); color: var(--ink); }
.side-card.acid p { color: #3a3a2a; }
.side-card.acid .usebtn { background: var(--ink); color: var(--acid); text-decoration: none; display: inline-block; }
.side-card a.lk { display: flex; justify-content: space-between; padding: 10px 0; border-top: 1px solid rgba(255,255,255,.08); color: var(--chalk); text-decoration: none; font-weight: 500; }
.side-card a.lk:hover { color: var(--acid); }
.usebtn { border: 0; background: var(--acid); color: var(--ink); font: 700 15px var(--body); padding: 11px 18px; border-radius: 99px; cursor: pointer; box-shadow: 4px 4px 0 var(--red); white-space: nowrap; }
.faq { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.faq div { background: var(--panel); border: 1px solid rgba(255,255,255,.07); border-radius: 16px; padding: 18px; }
.faq h3 { margin: 0 0 6px; font-size: 17px; }
.faq p { margin: 0; color: var(--mute); font-size: 15px; }
.final { text-align: center; padding: 70px 0 90px; }
.final .big { font: 400 clamp(48px, 8vw, 110px)/.9 var(--display); text-transform: uppercase; }
.final .big em { font-style: normal; color: var(--acid); }
.final .usebtn { display: inline-block; margin-top: 26px; font-size: 18px; padding: 15px 28px; text-decoration: none; }

/* 视频包 */
.packs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin: 18px 0 20px; }
.prose .packs { grid-template-columns: repeat(2, 1fr); }
.pack { position: relative; background: var(--panel); border: 1px solid rgba(255,255,255,.08); border-radius: 20px; padding: 20px; display: flex; flex-direction: column; gap: 6px; }
.pack.hot { background: var(--acid); color: var(--ink); border-color: var(--acid); box-shadow: 6px 6px 0 var(--red); }
.pack .tag { position: absolute; top: -11px; left: 16px; font: 700 10px var(--mono); letter-spacing: .08em; background: var(--red); color: #fff; padding: 4px 9px; border-radius: 99px; }
.prose .pack p, .pack .pname { font: 700 12px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--mute); margin: 0; }
.pack.hot .pname, .pack.hot .per, .pack.hot .cr { color: #3a3a2a !important; }
.pack .price { font: 400 48px/1 var(--display); margin: 6px 0 2px; }
.pack .cr { font: 500 13px var(--mono); color: var(--mute); }
.pack .per { font-size: 14px; color: var(--mute); flex: 1; line-height: 1.4; }
.pack .per b { color: var(--acid); font-weight: 700; }
.pack.hot .per b { color: var(--ink); }
.pack button { margin-top: 10px; border: 0; border-radius: 12px; padding: 12px; font: 700 15px var(--body); cursor: pointer; background: var(--chalk); color: var(--ink); }
.pack.hot button { background: var(--ink); color: var(--acid); }

/* ===== 生成中 / 结果 / 弹窗 ===== */
.overlay, .modal { position: fixed; inset: 0; z-index: 80; background: rgba(30,28,24,.84); backdrop-filter: blur(10px); display: none; align-items: center; justify-content: center; padding: 16px; }
.modal { z-index: 85; }
.overlay.on, .modal.on { display: flex; }
.box { width: 100%; max-width: 580px; background: var(--bg2); border: 1px solid rgba(255,255,255,.1); border-radius: 26px; padding: 26px; text-align: center; max-height: 94vh; overflow: auto; }
.box .h4 { font: 400 42px/1 var(--display); text-transform: uppercase; margin: 14px 0 6px; }
.box p { color: var(--mute); font-size: 18px; }
.tape { width: 200px; margin: 0 auto; }
.tape .reel { transform-box: fill-box; transform-origin: center; animation: reel 1.4s linear infinite; }
@keyframes reel { to { transform: rotate(360deg); } }
.karaoke { margin: 20px 0 16px; min-height: 90px; font: 400 32px/1.15 var(--display); text-transform: uppercase; }
.karaoke span { color: #8a867b; transition: color .15s; }
.karaoke span.lit { color: var(--acid); }
.karaoke .w { display: block; font: 700 13px var(--mono); letter-spacing: .1em; color: var(--pink); margin-bottom: 6px; }
.prog { height: 10px; background: var(--panel2); border-radius: 99px; overflow: hidden; }
.prog i { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--acid), var(--red)); transition: width .4s; }
.box p.stage-lbl { font: 14px/1.5 var(--mono); color: var(--mute); margin-top: 12px; }
.box p#stageLbl { font-size: 16px; color: var(--chalk); }
.result { position: relative; display: grid; grid-template-columns: 300px 1fr; gap: 26px; text-align: left; max-width: 820px; }
.result .h4 { margin-top: 0; }
.result video { width: 100%; aspect-ratio: 9/16; border-radius: 18px; display: block; background: #000; }
.result .vwrap { position: relative; }
.result .acts { display: grid; gap: 10px; margin-top: 16px; }
.result .acts button, .result .acts a.dlbtn { display: block; border: 1px solid var(--line); background: var(--panel); border-radius: 14px; padding: 15px 16px; font-size: 17px; font-weight: 700; cursor: pointer; text-align: left; color: var(--chalk); text-decoration: none; }
.result .acts .tt { background: var(--acid); color: var(--ink); border-color: var(--acid); }
.caption { margin-top: 14px; background: var(--panel2); border: 1px solid var(--line); border-radius: 12px; padding: 14px; font: 14px/1.6 var(--mono); color: var(--mute); }
.caption b { color: var(--chalk); }
.box p.small { font: 14px/1.5 var(--mono); color: var(--dim); margin-top: 10px; }
.closex { position: absolute; top: 18px; right: 18px; background: none; border: 0; color: var(--mute); font-size: 22px; cursor: pointer; }
.modal .box { position: relative; max-width: 460px; text-align: left; }
.modal .box.wide { max-width: 900px; }
.modal .h4 { font: 400 38px/1 var(--display); text-transform: uppercase; margin: 0 0 8px; }
.gsi { margin: 18px 0 8px; min-height: 44px; display: flex; justify-content: center; }
.devlogin { display: none; width: 100%; margin-top: 10px; border: 1px dashed var(--line); background: none; border-radius: 12px; padding: 10px; color: var(--mute); cursor: pointer; font: 500 12px var(--mono); }
.dev .devlogin { display: block; }
.modal .packs { grid-template-columns: repeat(2, 1fr); margin-top: 20px; }
.err { color: #ffb36b; font: 15px var(--mono); margin-top: 8px; min-height: 18px; }
.toast { position: fixed; left: 50%; bottom: 90px; transform: translateX(-50%) translateY(20px); opacity: 0; z-index: 90; background: var(--acid); color: var(--ink); font-weight: 700; padding: 10px 16px; border-radius: 99px; transition: .25s; pointer-events: none; white-space: nowrap; }
.toast.on { opacity: 1; transform: translateX(-50%); }

/* 账户页 / 简单页 */
.acct { padding: 30px 20px 60px; }
.acct-top { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.acct-top h1 { font: 400 48px/1 var(--display); text-transform: uppercase; }
.bal { font: 400 40px/1 var(--display); color: var(--acid); }
.crumb { font: 500 12px var(--mono); color: var(--dim); }
.crumb a { color: var(--mute); text-decoration: none; } .crumb a:hover { color: var(--acid); }
.vids { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 14px; }
.vid { background: var(--panel); border: 1px solid rgba(255,255,255,.08); border-radius: 16px; overflow: hidden; }
.vid video { width: 100%; aspect-ratio: 9/16; display: block; background: #000; }
.vid .vm { padding: 10px 12px; font: 12px var(--mono); color: var(--mute); }
.vid .vm b { display: block; color: var(--chalk); font: 400 18px var(--display); text-transform: uppercase; }
.vid .vm a { color: var(--acid); }
.empty { color: var(--mute); padding: 30px; text-align: center; border: 1.5px dashed var(--line); border-radius: 18px; }
.empty a { color: var(--acid); }
.simple { max-width: 780px; padding: 36px 20px 60px; }
.simple h1 { font: 400 clamp(40px, 6vw, 68px)/.95 var(--display); text-transform: uppercase; margin: 12px 0 22px; }

/* 页脚 */
.site-footer { border-top: 1px solid rgba(255,255,255,.08); padding: 46px 0 34px; color: var(--mute); font-size: 14px; background: rgba(0,0,0,.2); }
.foot { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 28px; }
.foot h2 { font: 700 11px var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--chalk); margin-bottom: 12px; }
.foot a { display: block; color: var(--mute); text-decoration: none; margin-bottom: 8px; }
.foot a.logo { display: flex; color: var(--chalk); }
.foot a:hover { color: var(--acid); }
.foot p { margin-top: 12px; max-width: 300px; }
.foot-base { margin-top: 34px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.08); display: flex; justify-content: space-between; gap: 10px; font: 12px var(--mono); color: var(--dim); }

@media (prefers-reduced-motion: reduce) {
  .sname .w span { animation: none; transform: none; opacity: 1; }
  .rec.on .vinyl, .tape .reel, .np::before { animation: none; }
}

/* ===== 平板 ===== */
@media (max-width: 1000px) {
  .content { grid-template-columns: minmax(0, 1fr); gap: 30px; }
  .aside { position: static; }
  .packs { grid-template-columns: repeat(2, 1fr); }
  .foot { grid-template-columns: 1fr 1fr; }
  .result { grid-template-columns: minmax(0, 1fr); max-width: 420px; }
  .result .vwrap { max-width: 260px; margin: 0 auto; width: 100%; }
  .records .in { overflow-x: auto; scrollbar-width: none; padding-top: 22px; }
  .records .in::-webkit-scrollbar { display: none; }
}

/* ===== 手机：样片铺满整屏，信息叠在底部 ===== */
@media (max-width: 760px) {
  .wrap { padding: 0 16px; }
  .nav .wrap { padding: 0 16px; gap: 12px; }
  .nav nav { display: none; }
  .signed .nav .avatar { display: none; }
  .nav .credits { padding: 5px 9px; }
  .hero { height: 100svh; min-height: 560px; max-height: none; }
  #bg { display: none; }
  .hero::before { background: linear-gradient(rgba(49,45,40,.3), transparent 22%, transparent 50%, rgba(49,45,40,.92) 84%); }
  .stage { display: block; padding: 0; z-index: auto; position: static; }
  .pwrap { position: absolute; inset: 0; z-index: -2; }
  .player { position: absolute; inset: 0; height: 100%; width: 100%; aspect-ratio: auto; border-radius: 0; transform: none; box-shadow: none; }
  .player:hover { transform: none; }
  .player .tag { top: 72px; left: 16px; }
  .player .bar { top: 66px; bottom: auto; left: 16px; right: 16px; }
  .player .duo { display: none; }
  .player .snd { top: 92px; right: 16px; }
  .arrow { display: none; }
  .copy { position: absolute; z-index: 1; left: 16px; right: 16px; bottom: 170px; }
  .np { font-size: 10px; }
  .hero h1 { font-size: 15px; margin: 8px 0 2px; }
  .sname { font-size: 62px; min-height: 0; }
  .desc, .meta, .dropzone { display: none; }
  .ctas { margin-top: 14px; }
  .go { width: 100%; font-size: 17px; padding: 15px; }
  .ctas small { width: 100%; text-align: center; }
  .dz-hint { display: none; }
  .records { padding: 0 0 18px; }
  .records .in { overflow-x: auto; padding: 22px 16px 0; gap: 18px; }
  .records .in > div + div { padding-left: 18px; }
  .rlabel, .slbl { display: none; }
  .rec, .rec .sleeve { width: 72px; height: 72px; }
  .rec .vinyl { width: 66px; height: 66px; }
  .rec:hover .vinyl, .rec.on .vinyl { transform: translateX(38px) rotate(120deg); }
  .rec.on .vinyl { animation-name: spin-m; }
  @keyframes spin-m { from { transform: translateX(38px) rotate(0); } to { transform: translateX(38px) rotate(360deg); } }
  .rec.on { margin-right: 38px; transform: translateY(-8px); }
  .rec .nm { font-size: 12px; right: 7px; } .rec .stk, .rec .xb { display: none; }
  .rec.sug .sleeve { font-size: 9px; }
  .photos { grid-template-columns: 1fr 40px 1fr; gap: 8px; }
  .swap { margin-top: 70%; width: 40px; height: 40px; }
  .dform h2 { font-size: 28px; padding-right: 40px; }
  .btn { max-width: none; }
  .how { grid-template-columns: 1fr; padding-top: 44px; }
  .faq, .stage-list { grid-template-columns: 1fr; }
  .packs, .modal .packs { grid-template-columns: 1fr; }
  .foot-base { flex-direction: column; }
  .box { padding: 20px; }
  .box .h4 { font-size: 34px; } .karaoke { font-size: 26px; min-height: 78px; } .box p { font-size: 17px; }
}