/* 粱心有AI / 粱心优选 官网公共样式（index.html 与 about.html 共用） */
:root {
  --night: #13070b;
  --night-2: #1b0b11;
  --red: #a3283b;
  --red-hi: #d4435a;
  --gold: #d9b36c;
  --gold-hi: #f3dcaa;
  --champagne: #f5ecdc;
  --text: #f5eee7;
  --dim: #b8a6a1;
  --faint: rgba(245,238,231,.1);
  --glass: rgba(255,255,255,.035);
  --ink: #241319;
  --ink-dim: #6f5f64;
  --serif: "Songti SC", "Noto Serif SC", "Source Han Serif SC", STSong, "SimSun", serif;
  --sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
  --wrap: 1220px;
  --ease: cubic-bezier(.16, 1, .3, 1);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: var(--sans); font-size: 16px; line-height: 1.75; color: var(--text); background: var(--night); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; border-radius: 6px; }
.wrap { width: min(100% - 48px, var(--wrap)); margin-inline: auto; }
.skip { position: absolute; left: 16px; top: -60px; background: var(--gold); color: var(--night); padding: 8px 14px; border-radius: 6px; z-index: 99; }
.skip:focus { top: 12px; }
.num { font-variant-numeric: tabular-nums; }
.gold-text { background: linear-gradient(180deg, var(--gold-hi), var(--gold) 60%, #a77b3a); -webkit-background-clip: text; background-clip: text; color: transparent; }
body::before { content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none; background-image: linear-gradient(rgba(245,238,231,.025) 1px, transparent 1px), linear-gradient(90deg, rgba(245,238,231,.025) 1px, transparent 1px); background-size: 64px 64px; }
/* 全站光晕、滚动进度、卡片倾斜 */
.halo { position: fixed; left: 0; top: 0; z-index: 0; width: 520px; height: 520px; margin: -260px 0 0 -260px; border-radius: 50%; pointer-events: none; background: radial-gradient(circle, rgba(217,179,108,.09), transparent 62%); transform: translate(var(--hx, -999px), var(--hy, -999px)); transition: transform .25s var(--ease); }
.progress { position: fixed; left: 0; top: 0; z-index: 60; height: 2px; width: 100%; transform-origin: 0 50%; transform: scaleX(var(--p, 0)); background: linear-gradient(90deg, var(--red-hi), var(--gold-hi)); box-shadow: 0 0 12px var(--gold); }
.tilt { transform: perspective(1000px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)); transition: transform .5s var(--ease); }
@media (hover: none) { .halo { display: none; } }

/* 3D：首屏手机、粒子地形、区块入场、星球 */
.stage { perspective: 1400px; }
.rig { position: relative; width: 100%; height: 100%; display: grid; place-items: center; transform-style: preserve-3d; transform: rotateX(var(--tx, 8deg)) rotateY(var(--ty, -16deg)); transition: transform .8s var(--ease); }
.rig .phone { transform: translateZ(40px); }
.rig .orbit { transform-style: preserve-3d; }
.rig .chip { transform: translateZ(var(--z, 120px)); }
.rig .chip.on { transform: translateZ(var(--z, 120px)) scale(1.06); }
.rig .chip:nth-child(1) { --z: 150px; } .rig .chip:nth-child(2) { --z: 90px; } .rig .chip:nth-child(3) { --z: 190px; }
.rig .chip:nth-child(4) { --z: 70px; } .rig .chip:nth-child(5) { --z: 170px; } .rig .chip:nth-child(6) { --z: 110px; }
.rig .shadow { position: absolute; left: 50%; bottom: 2%; width: 260px; height: 40px; margin-left: -130px; border-radius: 50%; background: radial-gradient(closest-side, rgba(0,0,0,.6), transparent); transform: translateZ(-60px) rotateX(80deg); filter: blur(6px); }
.rig .halo3d { position: absolute; left: 50%; top: 50%; width: 520px; height: 520px; margin: -260px 0 0 -260px; border-radius: 50%; border: 1px solid rgba(217,179,108,.18); transform: translateZ(-120px); }
.rig .halo3d::after { content: ""; position: absolute; inset: 12%; border-radius: 50%; border: 1px dashed rgba(217,179,108,.14); animation: rot 50s linear infinite; }
#terrain { position: absolute; left: 0; right: 0; bottom: 0; height: 58%; z-index: -1; width: 100%; pointer-events: none; -webkit-mask-image: linear-gradient(transparent, #000 40%); mask-image: linear-gradient(transparent, #000 40%); }
main { overflow-x: clip; }
.lift { transform-origin: 50% 0; }
.lift.pre { opacity: 0; transform: perspective(1400px) rotateX(18deg) translateY(80px) scale(.94); }
.lift.go { opacity: 1; transform: perspective(1400px) rotateX(0) translateY(0) scale(1); transition: transform 1.4s var(--ease), opacity 1s var(--ease); }
#globe { position: absolute; left: 50%; top: 50%; width: 240px; height: 240px; margin: -120px 0 0 -120px; z-index: 1; pointer-events: none; }
.core-orb.has-globe { background: radial-gradient(circle at 38% 32%, rgba(247,226,179,.35), rgba(163,40,59,.35) 55%, rgba(19,7,11,.1) 72%); box-shadow: 0 0 90px rgba(217,179,108,.35), 0 0 180px rgba(163,40,59,.45); }
.core-orb.has-globe b, .core-orb.has-globe span { position: relative; z-index: 2; color: var(--gold-hi); text-shadow: 0 2px 14px rgba(0,0,0,.7); }
@media (max-width: 720px) { .rig .halo3d { width: 360px; height: 360px; margin: -180px 0 0 -180px; } #globe { width: 180px; height: 180px; margin: -90px 0 0 -90px; } }
@media (prefers-reduced-motion: reduce) { .rig { transform: none; } .lift.pre { opacity: 1; transform: none; } }

/* 背景影片：固定在全站背后的粒子短片 */
#film { position: fixed; inset: 0; z-index: -1; width: 100%; height: 100%; pointer-events: none; }
.bars { display: none; }
html.intro .bars { display: block; position: fixed; inset: 0; z-index: 80; pointer-events: none; }
html.intro .bars::before, html.intro .bars::after { content: ""; position: absolute; left: 0; right: 0; height: 12vh; background: #050203; animation: barOut 1s var(--ease) 1.5s forwards; }
html.intro .bars::before { top: 0; }
html.intro .bars::after { bottom: 0; animation-name: barOutDown; }
html.intro .bars span { position: absolute; left: 0; right: 0; bottom: 4.5vh; z-index: 1; text-align: center; font-family: var(--serif); font-size: 14px; letter-spacing: .4em; color: var(--gold); opacity: 0; animation: credit 1.7s ease .2s forwards; }
@keyframes barOut { to { transform: translateY(-100%); } }
@keyframes barOutDown { to { transform: translateY(100%); } }
@keyframes credit { 20%, 70% { opacity: .9; } 100% { opacity: 0; } }
html.intro .in-1 { animation-delay: 1.7s; } html.intro .in-2 { animation-delay: 1.95s; } html.intro .in-3 { animation-delay: 2.2s; }
html.intro .in-4 { animation-delay: 2.45s; } html.intro .in-5 { animation-delay: 2.7s; }
.chapter { position: fixed; left: 20px; bottom: 18px; z-index: 40; display: flex; align-items: center; gap: 12px; padding: 7px 14px; border-radius: 99px; background: rgba(19,7,11,.72); border: 1px solid var(--faint); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); font-size: 12px; color: var(--dim); pointer-events: none; font-variant-numeric: tabular-nums; text-shadow: 0 1px 8px rgba(0,0,0,.6); }
.chapter p, .chapter { margin: 0; }
.chapter i { width: 7px; height: 7px; border-radius: 50%; background: var(--red-hi); box-shadow: 0 0 10px var(--red-hi); animation: blink 1.6s ease-in-out infinite; }
.chapter b { font-weight: 500; color: var(--text); }
@keyframes blink { 50% { opacity: .25; } }
.cam { width: 100%; height: 100%; }
@media (max-width: 720px) { .chapter { display: none; } }

/* 六道工序：横向走片 */
.reel { position: relative; padding-top: 110px; }
.reel-pin { min-height: 100vh; min-height: 100svh; display: flex; flex-direction: column; justify-content: center; gap: 44px; padding: 40px 0; }
.reel-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 40px; }
.reel-head h2 { margin: 0; font-family: var(--serif); font-weight: 700; font-size: clamp(32px, 3.8vw, 54px); line-height: 1.26; }
.reel-head p { margin: 0; max-width: 24em; color: var(--dim); font-size: 17px; }
.reel-view { overflow-x: auto; scroll-snap-type: x mandatory; padding: 10px 0 24px; scrollbar-width: none; }
.reel-view::-webkit-scrollbar { display: none; }
.reel-view.is-pinned { overflow: hidden; scroll-snap-type: none; }
.reel-track { list-style: none; margin: 0; display: flex; gap: 28px; width: max-content; padding: 0 max(24px, calc((100vw - var(--wrap)) / 2)); }
.frame { flex: none; width: 300px; scroll-snap-align: center; }
.reel-view.is-pinned .frame { opacity: .4; transform: scale(.94); transition: opacity .5s var(--ease), transform .6s var(--ease); }
.reel-view.is-pinned .frame.on { opacity: 1; transform: none; }
.shot { position: relative; aspect-ratio: 3 / 4; margin-bottom: 20px; border-radius: 20px; overflow: hidden; border: 1px solid var(--faint); background: linear-gradient(160deg, #2a0f18, #12060a); transition: border-color .5s, box-shadow .5s; }
.frame.on .shot { border-color: rgba(217,179,108,.5); box-shadow: 0 30px 80px -30px rgba(163,40,59,.85); }
.frame em { font-style: normal; font-family: var(--serif); font-size: 15px; color: var(--gold); }
.frame b { display: block; margin: 2px 0 6px; font-family: var(--serif); font-size: 24px; }
.frame p { margin: 0; font-size: 15px; line-height: 1.8; color: var(--dim); }
.reel-foot { display: none; }
.reel.is-pinned .reel-foot { display: block; }
.reel-bar { display: block; height: 2px; border-radius: 2px; overflow: hidden; background: var(--faint); }
.reel-bar i { display: block; height: 100%; transform-origin: 0 50%; transform: scaleX(0); background: linear-gradient(90deg, var(--red-hi), var(--gold-hi)); }
.s-copy { display: flex; flex-direction: column; justify-content: center; gap: 12px; padding: 30px; }
.s-copy i { height: 8px; border-radius: 4px; background: rgba(217,179,108,.22); }
.s-copy i:nth-child(1) { width: 92%; } .s-copy i:nth-child(2) { width: 76%; } .s-copy i:nth-child(3) { width: 84%; } .s-copy i:nth-child(4) { width: 48%; }
.s-copy q { margin-top: 14px; font-family: var(--serif); font-size: 19px; line-height: 1.6; color: var(--gold-hi); quotes: none; }
.s-board { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; padding: 22px; }
.s-board span { display: flex; align-items: flex-end; padding: 10px; border-radius: 12px; border: 1px dashed rgba(217,179,108,.35); font-size: 12px; color: var(--dim); background: rgba(255,255,255,.02); }
.s-scene { background: radial-gradient(circle at 62% 34%, #f3dcaa 0 7%, rgba(243,220,170,.35) 8%, transparent 30%), linear-gradient(180deg, #4a1422, #a3283b 56%, #3a1210 57%, #1c0a08); }
.s-scene::after { content: "Seedance 生成中"; position: absolute; left: 16px; bottom: 16px; padding: 4px 10px; border-radius: 99px; font-size: 12px; background: rgba(0,0,0,.45); color: var(--gold-hi); }
.s-voice { display: flex; align-items: center; justify-content: center; gap: 6px; }
.s-voice i { width: 6px; height: 40%; border-radius: 3px; background: linear-gradient(var(--gold-hi), var(--red-hi)); transform: scaleY(var(--h, .5)); }
.frame.on .s-voice i { animation: talk 1s ease-in-out infinite alternate; animation-delay: calc(var(--k) * -.13s); }
@keyframes talk { from { transform: scaleY(.15); } to { transform: scaleY(var(--h, .5)); } }
.s-cover { display: flex; flex-direction: column; justify-content: flex-end; padding: 26px; background: linear-gradient(180deg, transparent 30%, rgba(0,0,0,.6)), radial-gradient(circle at 70% 25%, rgba(243,220,170,.55), transparent 40%), linear-gradient(160deg, #6b1d2c, #1d0a10); }
.s-cover small { align-self: flex-start; margin-bottom: 10px; padding: 3px 10px; border-radius: 6px; font-size: 12px; background: var(--red); }
.s-cover strong { font-family: var(--serif); font-size: 34px; line-height: 1.25; }
.s-done { display: grid; place-content: center; justify-items: center; gap: 14px; text-align: center; }
.s-done span { width: 74px; height: 74px; border-radius: 50%; display: grid; place-items: center; background: linear-gradient(135deg, var(--gold-hi), var(--gold)); box-shadow: 0 0 60px rgba(217,179,108,.5); }
.s-done span::before { content: ""; margin-left: 6px; border-left: 20px solid var(--night); border-top: 13px solid transparent; border-bottom: 13px solid transparent; }
.s-done small { font-size: 13px; color: var(--dim); }
@media (max-width: 720px) {
  .reel-head { flex-direction: column; align-items: flex-start; gap: 16px; }
  .reel-view { overflow: visible; }
  .reel-track { flex-direction: column; width: auto; padding: 0 16px; gap: 36px; }
  .frame { width: auto; }
  .shot { aspect-ratio: 16 / 10; }
}

/* 入口：供应商登录、App 下载 */
.top-link { font-size: 14.5px; color: var(--gold-hi); text-decoration: none; white-space: nowrap; }
.top-link:hover { color: var(--text); }
.role { display: flex; flex-direction: column; }
.role ul { flex: 1; }
.role-go { align-self: flex-start; margin-top: 24px; font-size: 15px; font-weight: 600; color: var(--gold-hi); text-decoration: none; border-bottom: 1px solid rgba(217,179,108,.4); padding-bottom: 2px; }
.role-go:hover { color: var(--text); border-color: var(--text); }
.dl { display: flex; align-items: center; gap: 36px; margin-top: 22px; padding: 34px 38px; }
.dl-text { flex: 1; }
.dl h3 { margin: 0 0 8px; font-family: var(--serif); font-size: 26px; }
.dl p { margin: 0; color: var(--dim); font-size: 15.5px; }
.dl-btns { display: flex; flex-wrap: wrap; gap: 12px; }
.dl-qr { margin: 0; text-align: center; font-size: 12px; color: var(--dim); }
.dl-qr img { border-radius: 10px; background: #fff; padding: 6px; margin-bottom: 6px; }
.is-soon { opacity: .55; pointer-events: none; }
.foot-nav { display: flex; flex-wrap: wrap; gap: 24px; }
@media (max-width: 720px) { .dl { flex-direction: column; align-items: stretch; padding: 24px; gap: 20px; } .dl-btns .btn { flex: 1; } .dl-qr { display: none; } .top-link { margin-left: auto; font-size: 13.5px; } .top .top-link + .btn { margin-left: 0; } .top .wrap { gap: 14px; } }

/* 关于粱心优选 */
.ab-k { display: inline-block; margin-bottom: 12px; font-size: 13.5px; letter-spacing: .12em; color: var(--gold); }
.about-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.ab { padding: 34px 30px; }
.ab h3 { margin: 0 0 12px; font-family: var(--serif); font-size: 24px; line-height: 1.4; }
.ab p { margin: 0; color: var(--dim); font-size: 15.5px; }
.about-values { display: flex; align-items: center; gap: 40px; margin: 90px 0 70px; }
.vals { display: flex; gap: clamp(18px, 3vw, 44px); }
.vals span { font-family: var(--serif); font-weight: 900; font-size: clamp(44px, 6.4vw, 92px); line-height: 1; color: transparent; -webkit-text-stroke: 1px rgba(217,179,108,.7); transition: color .6s var(--ease); }
.vals span:hover { color: var(--gold-hi); }
.about-values p { margin: 0; max-width: 13em; color: var(--dim); font-size: 15.5px; }
.about-ai { display: flex; align-items: center; gap: 40px; padding: 38px 40px; }
.about-ai > div { flex: 1; }
.about-ai h3 { margin: 0 0 12px; font-family: var(--serif); font-size: clamp(22px, 2.2vw, 30px); line-height: 1.4; }
.about-ai p { margin: 0; max-width: 40em; color: var(--dim); font-size: 16px; }
.about-ai .btn { flex: none; }
.origin { display: grid; grid-template-columns: 1fr 1.1fr; gap: 28px 64px; align-items: center; margin-top: 90px; padding-top: 70px; border-top: 1px solid var(--faint); }
.origin h3 { margin: 0 0 16px; font-family: var(--serif); font-size: clamp(26px, 2.6vw, 36px); line-height: 1.35; }
.origin-text p { margin: 0; color: var(--dim); font-size: 16.5px; }
.origin-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin: 0; }
.origin-stats div { padding: 26px 22px; border-radius: 18px; border: 1px solid var(--faint); background: rgba(27,11,17,.72); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); }
.origin-stats dt { font-family: var(--serif); font-weight: 900; font-size: clamp(32px, 3.4vw, 46px); line-height: 1.1; }
.origin-stats dd { margin: 10px 0 0; font-size: 14px; line-height: 1.6; color: var(--dim); }
.origin .footnote { grid-column: 1 / -1; margin: 0; }

/* 首页：关于粱心优选（摘要） */
.band-grid { display: grid; grid-template-columns: 1fr minmax(260px, 400px); gap: clamp(40px, 7vw, 110px); align-items: center; }
.band-copy .head-like, .band-copy h2 { margin: 22px 0 22px; font-family: var(--serif); font-weight: 700; font-size: clamp(34px, 3.5vw, 48px); line-height: 1.26; }
.band-copy h2 .gold-text { display: block; font-size: .78em; }
.band-copy .kicker { display: inline-flex; align-items: center; gap: 10px; font-size: 14px; color: var(--gold); }
.band-copy .kicker::before { content: ""; width: 28px; height: 1px; background: var(--gold); }
.band-copy > p:not(.footnote) { margin: 0 0 14px; max-width: 42em; font-size: 16.5px; line-height: 1.9; color: var(--dim); }
.band-stats { display: flex; flex-wrap: wrap; gap: 18px 48px; margin: 40px 0 14px; }
.band-stats dt { font-family: var(--serif); font-weight: 900; font-size: clamp(34px, 3.6vw, 50px); line-height: 1.1; }
.band-stats dd { margin: 6px 0 0; font-size: 14px; color: var(--dim); }
.band-copy .footnote { margin: -4px 0 15px; font-size: 13px; }
.band-principles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin: 28px 0 30px; }
.band-principles div { min-width: 0; padding: 17px 14px; border: 1px solid rgba(217,179,108,.25); border-radius: 14px; background: rgba(27,11,17,.58); }
.band-principles dt { margin-bottom: 8px; font-size: 13px; letter-spacing: .14em; color: var(--gold); }
.band-principles dd { margin: 0; font-family: var(--serif); font-size: 16px; line-height: 1.55; color: var(--champagne); text-wrap: balance; }
.band-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.band-lead { position: relative; display: block; aspect-ratio: 3 / 4; border-radius: 26px; overflow: hidden; border: 1px solid rgba(217,179,108,.35); box-shadow: 0 50px 120px -50px rgba(163,40,59,.9); text-decoration: none; }
.band-lead img { width: 100%; height: 100%; object-fit: cover; object-position: 60% 18%; transition: transform 1.2s var(--ease); }
.band-lead:hover img { transform: scale(1.04); }
.band-lead::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 58%, rgba(19,7,11,.85)); pointer-events: none; }
.band-cap { position: absolute; left: 24px; right: 24px; bottom: 20px; z-index: 1; display: flex; align-items: baseline; gap: 12px; }
.band-cap b { font-family: var(--serif); font-size: 26px; letter-spacing: .1em; }
.band-cap small { font-size: 13.5px; color: var(--gold-hi); letter-spacing: .08em; }
@media (max-width: 1080px) { .band-grid { grid-template-columns: 1fr 320px; gap: 40px; } }
@media (max-width: 720px) {
  .band-grid { grid-template-columns: 1fr; }
  .band-copy h2 .gold-text { font-size: .72em; }
  .band-principles { grid-template-columns: 1fr; gap: 10px; }
  .band-principles div { padding: 15px 18px; }
  .band-principles dt { margin-bottom: 4px; }
  .band-lead { aspect-ratio: 4 / 5; }
  .band-stats { display: grid; grid-template-columns: repeat(3, auto); justify-content: space-between; gap: 12px; }
  .band-stats dt { font-size: 28px; }
  .band-stats dd { font-size: 12.5px; }
  .band-actions .btn { flex: 1; }
}

/* 创始团队 */
.team { position: relative; }
.lead { display: grid; grid-template-columns: minmax(280px, 440px) 1fr; gap: clamp(36px, 6vw, 96px); align-items: center; margin-bottom: 90px; }
.lead-photo { position: relative; margin: 0; aspect-ratio: 3 / 4; border-radius: 26px; overflow: hidden; border: 1px solid rgba(217,179,108,.35); box-shadow: 0 50px 120px -50px rgba(163,40,59,.9), 0 0 0 10px rgba(217,179,108,.04); }
.lead-photo img { width: 100%; height: 100%; object-fit: cover; object-position: 60% 18%; transform: scale(1.08); }
.lead-photo::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(19,7,11,.75)), linear-gradient(90deg, rgba(19,7,11,.25), transparent 30%); pointer-events: none; }
.lead-photo figcaption { position: absolute; left: 22px; bottom: 18px; z-index: 1; font-size: 13px; color: var(--gold-hi); letter-spacing: .1em; }
.lead-text h3 { margin: 0 0 8px; font-family: var(--serif); font-weight: 900; font-size: clamp(56px, 7vw, 104px); line-height: 1.05; letter-spacing: .12em; }
.lead-text .ab-k { font-size: 16px; }
.cv { margin: 26px 0 30px; padding: 0; list-style: none; }
.cv li { padding: 14px 0 14px 22px; border-top: 1px solid var(--faint); position: relative; font-size: 16.5px; }
.cv li::before { content: ""; position: absolute; left: 0; top: 50%; width: 8px; height: 1px; background: var(--gold); }
.lead-text > p { margin: 0; max-width: 30em; font-family: var(--serif); font-size: clamp(18px, 1.6vw, 22px); line-height: 1.8; color: var(--champagne); }
.crew { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.mate { padding: 28px 22px 24px; overflow: hidden; }
.mate .glyph { font-family: var(--serif); font-weight: 900; font-size: 48px; line-height: 1; margin-bottom: 22px; color: transparent; -webkit-text-stroke: 1px rgba(217,179,108,.6); }
.mate h3 { margin: 0; font-family: var(--serif); font-size: 22px; }
.mate .role-t { display: block; margin: 4px 0 14px; font-size: 13.5px; color: var(--gold); letter-spacing: .06em; }
.mate p { margin: 0; font-size: 14px; line-height: 1.75; color: var(--dim); }
.partners { margin: 28px 0 0; color: var(--dim); font-size: 15px; }
@media (max-width: 1080px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-values { flex-direction: column; align-items: flex-start; gap: 18px; margin: 64px 0 50px; }
  .about-values p { max-width: none; }
  .about-ai { flex-direction: column; align-items: flex-start; }
  .origin { grid-template-columns: 1fr; }
  .lead { grid-template-columns: 1fr 1fr; }
  .crew { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 720px) {
  .ab, .about-ai, .mate { padding: 24px; }
  .origin-stats { grid-template-columns: 1fr 1fr; }
  .lead { grid-template-columns: 1fr; gap: 30px; margin-bottom: 60px; }
  .lead-photo { aspect-ratio: 4 / 5; }
  .crew { grid-template-columns: 1fr; gap: 12px; }
  .mate { display: grid; grid-template-columns: 52px 1fr; column-gap: 18px; padding: 20px 22px; }
  .mate .glyph { grid-row: span 3; font-size: 40px; margin: 2px 0 0; }
  .mate .role-t { margin: 2px 0 8px; }
  .top .wrap { gap: 12px; }
  .brand { flex: none; gap: 9px; }
  .brand b { font-size: 16px; letter-spacing: .06em; white-space: nowrap; }
  .top .btn-sm { padding: 0 16px; white-space: nowrap; }
  .top-link { white-space: nowrap; }
}

/* 顶栏 */
.top { position: fixed; inset: 0 0 auto; z-index: 50; border-bottom: 1px solid transparent; transition: background .4s, border-color .4s; }
.top.is-scrolled { background: rgba(19,7,11,.7); backdrop-filter: blur(18px) saturate(1.5); -webkit-backdrop-filter: blur(18px) saturate(1.5); border-color: var(--faint); }
.top .wrap { display: flex; align-items: center; gap: 36px; height: 72px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.seal { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 9px; color: var(--night); font-family: var(--serif); font-weight: 900; font-size: 19px; background: linear-gradient(135deg, var(--gold-hi), var(--gold)); box-shadow: 0 0 24px rgba(217,179,108,.35); }
.brand b { font-family: var(--serif); font-size: 19px; letter-spacing: .1em; font-weight: 700; }
.nav { display: flex; gap: 28px; margin-left: auto; }
.nav a { text-decoration: none; font-size: 14.5px; color: var(--dim); transition: color .2s; }
.nav a:hover { color: var(--text); }
.btn { position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 50px; padding: 0 28px; border-radius: 999px; border: 0; text-decoration: none; font-weight: 600; font-size: 15.5px; letter-spacing: .04em; overflow: hidden; transition: transform .3s var(--ease), box-shadow .3s, border-color .3s, color .3s; }
.btn-gold { background: linear-gradient(135deg, var(--gold-hi), var(--gold) 55%, #b88c45); color: #2a1208; box-shadow: 0 10px 34px -10px rgba(217,179,108,.7); }
.btn-gold::after { content: ""; position: absolute; inset: 0; background: linear-gradient(110deg, transparent 30%, rgba(255,255,255,.6) 50%, transparent 70%); transform: translateX(-120%); transition: transform .9s var(--ease); }
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 18px 44px -12px rgba(217,179,108,.85); }
.btn-gold:hover::after { transform: translateX(120%); }
.btn-ghost { color: var(--text); border: 1px solid rgba(245,238,231,.24); background: rgba(255,255,255,.03); backdrop-filter: blur(8px); }
.btn-ghost:hover { border-color: var(--gold); color: var(--gold-hi); }
.btn-sm { min-height: 40px; padding: 0 20px; font-size: 14px; }

/* 首屏 */
.hero { position: relative; min-height: 100vh; min-height: 100svh; display: flex; align-items: center; overflow: hidden; isolation: isolate; }
.aurora { position: absolute; inset: -20%; z-index: -2; filter: blur(80px) saturate(1.2); opacity: .9; }
.aurora i { position: absolute; border-radius: 50%; mix-blend-mode: screen; animation: drift 22s ease-in-out infinite alternate; }
.aurora i:nth-child(1) { width: 46vw; height: 46vw; left: 48%; top: 8%; background: radial-gradient(circle, rgba(163,40,59,.75), transparent 65%); }
.aurora i:nth-child(2) { width: 38vw; height: 38vw; left: 62%; top: 40%; background: radial-gradient(circle, rgba(217,179,108,.4), transparent 65%); animation-duration: 28s; animation-delay: -6s; }
.aurora i:nth-child(3) { width: 40vw; height: 40vw; left: 8%; top: 52%; background: radial-gradient(circle, rgba(110,30,70,.55), transparent 65%); animation-duration: 32s; animation-delay: -12s; }
@keyframes drift { 0% { transform: translate(0, 0) scale(1); } 50% { transform: translate(-6vw, 4vh) scale(1.15); } 100% { transform: translate(4vw, -5vh) scale(.92); } }
#sparks { position: absolute; inset: 0; z-index: -1; width: 100%; height: 100%; }
.hero .wrap { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; padding: 120px 0 90px; }
.hero h1 { margin: 0; font-family: var(--serif); font-weight: 900; font-size: clamp(42px, 5.4vw, 80px); line-height: 1.16; letter-spacing: .01em; }
.hero h1 .line { display: block; }
.hero .lede { margin: 30px 0 40px; max-width: 32em; font-size: clamp(16px, 1.25vw, 18.5px); line-height: 1.95; color: var(--dim); }
.hero .actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 36px; margin-top: 56px; padding-top: 28px; border-top: 1px solid var(--faint); }
.hero-meta b { display: block; font-family: var(--serif); font-size: 30px; line-height: 1.1; color: var(--text); }
.hero-meta span { font-size: 13.5px; color: var(--dim); }
.in { opacity: 0; transform: translateY(26px); filter: blur(8px); animation: enter 1.2s var(--ease) forwards; }
.in-1 { animation-delay: .1s; } .in-2 { animation-delay: .35s; } .in-3 { animation-delay: .6s; } .in-4 { animation-delay: .85s; } .in-5 { animation-delay: 1.1s; }
@keyframes enter { to { opacity: 1; transform: none; filter: none; } }
/* 首屏舞台：一条视频正在被 AI 生成 */
.stage { position: relative; height: 640px; display: grid; place-items: center; }
.phone { position: relative; width: 300px; aspect-ratio: 9 / 18.5; border-radius: 42px; padding: 2px; background: conic-gradient(from var(--ang, 0deg), rgba(217,179,108,.9), rgba(163,40,59,.3) 25%, rgba(245,238,231,.08) 50%, rgba(212,67,90,.6) 75%, rgba(217,179,108,.9)); animation: spin 6s linear infinite; box-shadow: 0 50px 120px -40px rgba(163,40,59,.8), 0 0 0 10px rgba(255,255,255,.02); }
@property --ang { syntax: "<angle>"; inherits: false; initial-value: 0deg; }
@keyframes spin { to { --ang: 360deg; } }
.screen { position: relative; height: 100%; border-radius: 40px; overflow: hidden; background: #0c0407; }
.screen .notch { position: absolute; top: 12px; left: 50%; width: 88px; height: 24px; margin-left: -44px; border-radius: 20px; background: #000; z-index: 6; }
.scene { position: absolute; inset: 0; opacity: 0; transition: opacity 1s var(--ease); }
.scene.on { opacity: 1; }
.scene-a { background: radial-gradient(120% 60% at 50% 100%, #c28a3c 0%, #7a2230 35%, #2a0b12 70%), #2a0b12; }
.scene-a .sun { position: absolute; left: 50%; top: 30%; width: 120px; height: 120px; margin-left: -60px; border-radius: 50%; background: radial-gradient(circle, #ffe7b3, #e8a54b 55%, rgba(232,165,75,0) 72%); animation: breathe 6s ease-in-out infinite; }
.scene-a .field { position: absolute; left: -10%; right: -10%; bottom: 0; height: 48%; background: repeating-linear-gradient(95deg, rgba(90,14,24,.95) 0 6px, rgba(150,40,50,.9) 6px 9px, rgba(60,8,16,.95) 9px 15px); -webkit-mask-image: linear-gradient(transparent, #000 35%); mask-image: linear-gradient(transparent, #000 35%); transform-origin: bottom; animation: sway 5s ease-in-out infinite alternate; }
@keyframes breathe { 50% { transform: scale(1.08); } }
@keyframes sway { to { transform: skewX(-4deg); } }
.scene-b { background: linear-gradient(170deg, #3b1019, #140609); }
.scene-b .cup { position: absolute; left: 50%; top: 34%; width: 110px; height: 150px; margin-left: -55px; border-radius: 10px 10px 50px 50px; border: 2px solid rgba(245,238,231,.5); overflow: hidden; }
.scene-b .cup::after { content: ""; position: absolute; inset: auto 0 0; height: 62%; background: linear-gradient(180deg, #f3d38a, #c98a2d); animation: pour 4s var(--ease) infinite; }
@keyframes pour { 0% { height: 0; } 60%, 100% { height: 62%; } }
.scene-b .bottle { position: absolute; left: 50%; top: 14%; width: 46px; height: 120px; margin-left: 30px; border-radius: 12px 12px 8px 8px; background: linear-gradient(90deg, #6b1a2a, #a3283b 50%, #4a0f18); transform: rotate(28deg); box-shadow: inset 0 0 0 1px rgba(255,255,255,.1); }
.scene-c { background: radial-gradient(90% 70% at 50% 30%, #4a1620, #120508); }
.scene-c .person { position: absolute; left: 50%; bottom: 0; width: 190px; height: 260px; margin-left: -95px; }
.scene-c .head { position: absolute; left: 50%; top: 0; width: 86px; height: 100px; margin-left: -43px; border-radius: 45%; background: linear-gradient(160deg, #e7c3a6, #b68566); }
.scene-c .body { position: absolute; left: 0; right: 0; bottom: 0; height: 150px; border-radius: 90px 90px 0 0; background: linear-gradient(160deg, #3a2a32, #1b1116); }
.scene-c .wave { position: absolute; left: 50%; top: 40%; display: flex; gap: 3px; margin-left: 60px; }
.scene-c .wave i { width: 3px; height: 18px; border-radius: 2px; background: var(--gold); animation: eq 1s ease-in-out infinite; }
.scene-c .wave i:nth-child(2) { animation-delay: -.2s; } .scene-c .wave i:nth-child(3) { animation-delay: -.4s; } .scene-c .wave i:nth-child(4) { animation-delay: -.6s; }
@keyframes eq { 50% { transform: scaleY(.3); } }
.cap { position: absolute; left: 18px; right: 18px; bottom: 74px; z-index: 4; text-align: center; font-family: var(--serif); font-weight: 700; font-size: 19px; line-height: 1.45; color: #fff; text-shadow: 0 2px 12px rgba(0,0,0,.6); }
.scan { position: absolute; inset: 0; z-index: 5; pointer-events: none; }
.scan::before { content: ""; position: absolute; left: 0; right: 0; height: 30%; top: -30%; background: linear-gradient(180deg, transparent, rgba(243,220,170,.22) 85%, rgba(243,220,170,.9) 100%); animation: scan 3.2s var(--ease) infinite; }
.scan::after { content: ""; position: absolute; inset: 0; background: repeating-linear-gradient(0deg, rgba(255,255,255,.035) 0 1px, transparent 1px 3px); }
@keyframes scan { 0% { top: -30%; } 70%, 100% { top: 100%; } }
.hud { position: absolute; left: 14px; right: 14px; bottom: 16px; z-index: 6; display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 14px; background: rgba(0,0,0,.45); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); font-size: 12px; color: var(--dim); }
.hud .bar { flex: 1; height: 3px; border-radius: 2px; background: rgba(255,255,255,.12); overflow: hidden; }
.hud .bar i { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--red-hi), var(--gold-hi)); transition: width .5s linear; }
.hud b { color: var(--gold-hi); font-weight: 600; min-width: 5.5em; }
.orbit { position: absolute; inset: 0; pointer-events: none; }
.chip { position: absolute; display: flex; align-items: center; gap: 8px; padding: 9px 14px; border-radius: 12px; font-size: 13px; color: var(--dim); background: rgba(27,11,17,.72); border: 1px solid var(--faint); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); transition: color .4s, border-color .4s, box-shadow .4s, transform .6s var(--ease); white-space: nowrap; }
.chip i { width: 7px; height: 7px; border-radius: 50%; background: rgba(245,238,231,.25); transition: background .4s, box-shadow .4s; }
.chip.on { color: var(--text); border-color: rgba(217,179,108,.5); box-shadow: 0 0 30px -6px rgba(217,179,108,.5); transform: scale(1.04); }
.chip.on i { background: var(--gold); box-shadow: 0 0 10px var(--gold); }
.chip.done i { background: #8fd1ad; }
.chip:nth-child(1) { left: 2%; top: 12%; } .chip:nth-child(2) { right: 0; top: 20%; } .chip:nth-child(3) { left: -2%; top: 44%; }
.chip:nth-child(4) { right: -3%; top: 52%; } .chip:nth-child(5) { left: 4%; top: 76%; } .chip:nth-child(6) { right: 4%; top: 82%; }
.floaty { animation: float 7s ease-in-out infinite; }
@keyframes float { 50% { transform: translateY(-10px); } }
/* 通用区块 */
section { position: relative; scroll-margin-top: 72px; }
.block { padding: 150px 0; }
.head { max-width: 48em; margin-bottom: 72px; }
.head .kicker { display: inline-flex; align-items: center; gap: 10px; margin-bottom: 22px; font-size: 14px; color: var(--gold); }
.head .kicker::before { content: ""; width: 28px; height: 1px; background: var(--gold); }
.head h2 { margin: 0 0 20px; font-family: var(--serif); font-weight: 700; font-size: clamp(34px, 4.2vw, 58px); line-height: 1.26; letter-spacing: .01em; }
.head p { margin: 0; max-width: 38em; font-size: 18px; color: var(--dim); }
.reveal { clip-path: inset(0 0 100% 0); transform: translateY(28px); transition: clip-path 1.1s var(--ease), transform 1.1s var(--ease); }
.reveal.on { clip-path: inset(0 0 -12% 0); transform: none; }
.glass { position: relative; border-radius: 24px; background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.015)); border: 1px solid var(--faint); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); }
.glow-edge { position: relative; }
.glow-edge::before { content: ""; position: absolute; inset: -1px; border-radius: inherit; padding: 1px; background: linear-gradient(140deg, rgba(217,179,108,.6), rgba(163,40,59,.2) 40%, transparent 70%); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; pointer-events: none; }

/* 三步工作室 */
.studio { display: grid; grid-template-columns: 1.25fr .75fr; gap: 28px; }
.studio-main { padding: 36px; }
.steps { display: flex; gap: 8px; margin-bottom: 32px; }
.step-tab { flex: 1; display: flex; align-items: center; gap: 10px; padding: 12px 16px; border-radius: 14px; border: 1px solid var(--faint); background: transparent; font-size: 14.5px; color: var(--dim); text-align: left; transition: all .35s var(--ease); }
.step-tab b { display: grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; font-size: 13px; border: 1px solid rgba(245,238,231,.25); font-weight: 600; flex: none; }
.step-tab[aria-selected="true"] { color: var(--text); border-color: rgba(217,179,108,.5); background: rgba(217,179,108,.07); }
.step-tab[aria-selected="true"] b { background: var(--gold); border-color: var(--gold); color: var(--night); }
.step-tab.done b { background: rgba(143,209,173,.18); border-color: rgba(143,209,173,.5); color: #a8e0c1; }
.pane[hidden] { display: none; }
.pane h3 { margin: 0 0 6px; font-size: 20px; font-weight: 600; }
.pane .hint { margin: 0 0 22px; color: var(--dim); font-size: 15px; }
.opts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.opt { position: relative; padding: 18px 18px 16px; border-radius: 16px; border: 1px solid var(--faint); background: rgba(255,255,255,.02); text-align: left; transition: border-color .3s, background .3s, transform .4s var(--ease); }
.opt:hover { border-color: rgba(217,179,108,.35); transform: translateY(-2px); }
.opt[aria-pressed="true"] { border-color: var(--gold); background: rgba(217,179,108,.09); box-shadow: 0 0 40px -14px rgba(217,179,108,.6); }
.opt strong { display: block; font-size: 16.5px; font-weight: 600; margin-bottom: 4px; }
.opt span { font-size: 13.5px; color: var(--dim); line-height: 1.6; }
.opts-2 { grid-template-columns: 1fr 1fr; }
.opts-2 .opt { padding: 24px; }
.opts-2 .opt strong { font-size: 19px; font-family: var(--serif); }
.durs { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.dur { padding: 8px 18px; border-radius: 999px; border: 1px solid var(--faint); background: none; font-size: 14px; color: var(--dim); transition: all .25s; }
.dur[aria-pressed="true"] { border-color: var(--gold); color: var(--gold-hi); background: rgba(217,179,108,.08); }
.draft { padding: 22px; border-radius: 16px; background: rgba(0,0,0,.25); border: 1px solid var(--faint); font-family: var(--serif); font-size: 17px; line-height: 1.9; min-height: 150px; }
.draft .caret, .c-text .caret { display: inline-block; width: 2px; height: 1em; vertical-align: -.12em; margin-left: 2px; background: var(--gold); animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.draft-meta { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-top: 14px; font-size: 13.5px; color: var(--dim); }
.link-btn { border: 0; background: none; padding: 0; color: var(--gold-hi); font-size: 14px; text-decoration: underline; text-underline-offset: 4px; }
.pane-foot { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-top: 30px; padding-top: 22px; border-top: 1px solid var(--faint); font-size: 14px; color: var(--dim); }
.pipeline { list-style: none; margin: 0 0 8px; padding: 0; display: grid; gap: 10px; }
.pipeline li { display: grid; grid-template-columns: 28px 1fr auto; gap: 12px; align-items: center; padding: 13px 16px; border-radius: 14px; border: 1px solid var(--faint); font-size: 15px; color: var(--dim); transition: all .4s var(--ease); }
.pipeline li .dot { width: 10px; height: 10px; margin-left: 8px; border-radius: 50%; background: rgba(245,238,231,.2); }
.pipeline li.run { color: var(--text); border-color: rgba(217,179,108,.45); background: rgba(217,179,108,.06); }
.pipeline li.run .dot { background: var(--gold); box-shadow: 0 0 0 5px rgba(217,179,108,.2); animation: pulse 1s ease-in-out infinite; }
.pipeline li.ok { color: var(--text); }
.pipeline li.ok .dot { background: #8fd1ad; }
.pipeline li small { font-size: 12.5px; color: var(--dim); }
@keyframes pulse { 50% { box-shadow: 0 0 0 9px rgba(217,179,108,0); } }
.studio-side { padding: 28px; display: flex; flex-direction: column; align-items: center; gap: 20px; }
.mini { position: relative; width: 100%; max-width: 250px; aspect-ratio: 9 / 16; border-radius: 26px; overflow: hidden; background: #0c0407; border: 1px solid var(--faint); }
.mini .scene { opacity: 1; }
.mini .empty { position: absolute; inset: 0; display: grid; place-items: center; padding: 24px; text-align: center; color: var(--dim); font-size: 14px; }
.mini .cap { bottom: 28px; font-size: 16px; }
.mini .badge { position: absolute; top: 12px; right: 12px; z-index: 6; padding: 3px 10px; border-radius: 8px; font-size: 12px; background: rgba(0,0,0,.45); color: var(--gold-hi); }
.summary { width: 100%; font-size: 14px; color: var(--dim); }
.summary div { display: flex; justify-content: space-between; padding: 9px 0; border-bottom: 1px solid var(--faint); }
.summary b { color: var(--text); font-weight: 500; }
.head .demo-label { margin-top: 18px; font-size: 13.5px; color: var(--dim); }
.draft-label { display: block; margin-bottom: 10px; font-size: 14px; color: var(--gold-hi); }
textarea.draft { display: block; width: 100%; resize: vertical; color: var(--text); }
#merge-demo[hidden] { display: none; }

/* 完整创作流程：沿用全站玻璃卡片与品牌色 */
.workflow-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 20px; }
.workflow-card { grid-column: span 2; padding: 32px; }
.workflow-wide { grid-column: span 3; }
.workflow-num { display: block; margin-bottom: 24px; color: var(--gold); font-size: 12.5px; letter-spacing: .12em; }
.workflow-card h3 { margin: 0 0 20px; font-family: var(--serif); font-size: clamp(25px, 2.4vw, 32px); line-height: 1.4; }
.workflow-card p { margin: 0 0 16px; color: var(--dim); font-size: 15px; }
.workflow-card p:last-child { margin-bottom: 0; }
.workflow-card .workflow-example { margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--faint); font-size: 14px; }
.workflow-example b { display: block; margin-bottom: 6px; color: var(--gold-hi); font-weight: 500; }
.workflow-card .workflow-payoff { margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--faint); color: var(--text); }
.workflow-start { display: flex; justify-content: space-between; align-items: center; gap: 32px; margin-top: 24px; padding: 32px; }
.workflow-start h3 { margin: 0 0 12px; font-family: var(--serif); font-size: 26px; line-height: 1.4; }
.workflow-start p { margin: 0; max-width: 42em; color: var(--dim); font-size: 14px; }
.workflow-start .kicker { margin-bottom: 12px; }
.workflow-start .actions { display: flex; flex: none; flex-direction: column; gap: 12px; }
@media (max-width: 1080px) { .workflow-card { grid-column: span 3; } .workflow-card:nth-child(3) { grid-column: span 6; } }
@media (max-width: 720px) {
  .workflow-grid { grid-template-columns: 1fr; }
  .workflow-card, .workflow-card:nth-child(3) { grid-column: auto; padding: 24px; }
  .workflow-num { margin-bottom: 18px; }
  .workflow-start { flex-direction: column; align-items: stretch; padding: 24px; }
  .workflow-start .actions { flex-direction: row; flex-wrap: wrap; }
  .workflow-start .actions .btn { flex: 1; padding-inline: 20px; }
}

/* 能力拼图 */
.bento { display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; }
.tile { padding: 34px; overflow: hidden; }
.tile h3 { margin: 0 0 10px; font-family: var(--serif); font-size: 26px; font-weight: 700; }
.tile p { margin: 0; color: var(--dim); font-size: 15.5px; max-width: 30em; }
.t-wide { grid-column: span 4; } .t-narrow { grid-column: span 2; } .t-half { grid-column: span 3; }
.t-list { margin: 22px 0 0; padding: 0; list-style: none; display: flex; flex-wrap: wrap; gap: 8px; }
.t-list li { padding: 6px 13px; border-radius: 10px; font-size: 13.5px; background: rgba(255,255,255,.04); border: 1px solid var(--faint); color: var(--text); }
.t-big { display: block; margin-top: 26px; font-family: var(--serif); font-weight: 900; font-size: 64px; line-height: 1; }
.t-big small { font-family: var(--sans); font-size: 15px; font-weight: 400; color: var(--dim); margin-left: 8px; }
.faces { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 26px; }
.face { aspect-ratio: 3 / 4; border-radius: 12px; position: relative; overflow: hidden; background: var(--bg, #3a1520); }
.face::before { content: ""; position: absolute; left: 50%; top: 22%; width: 38%; aspect-ratio: 1 / 1.15; margin-left: -19%; border-radius: 45%; background: linear-gradient(160deg, #e9c8ab, #b3805f); }
.face::after { content: ""; position: absolute; left: 12%; right: 12%; bottom: -8%; height: 42%; border-radius: 50% 50% 0 0; background: var(--cloth, #2a1c22); }
.face img { position: absolute; inset: 0; z-index: 1; width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity .6s var(--ease), transform 1.2s var(--ease); }
.face.has-img img { opacity: 1; }
.face.has-img::before, .face.has-img::after { display: none; }
.face.has-img span { padding-top: 24px; background: linear-gradient(transparent, rgba(0,0,0,.55)); left: 0; right: 0; bottom: 0; padding-bottom: 8px; }
.face-note { margin: 10px 0 0; }
.face:hover img { transform: scale(1.05); }
.face span { position: absolute; left: 6px; right: 6px; bottom: 6px; z-index: 2; font-size: 11.5px; text-align: center; color: #fff; text-shadow: 0 1px 4px rgba(0,0,0,.7); }
.voice { display: flex; align-items: center; gap: 3px; height: 54px; margin-top: 26px; }
.voice i { flex: 1; border-radius: 2px; background: linear-gradient(var(--gold-hi), var(--red)); animation: eq 1.3s ease-in-out infinite; }
.quote-line { margin-top: 18px; font-family: var(--serif); font-size: 15px; color: var(--gold-hi); }
.posters { display: flex; gap: 10px; margin-top: 24px; align-items: flex-end; }
.posters div { border-radius: 10px; display: flex; align-items: flex-end; padding: 10px; font-family: var(--serif); font-size: 13px; color: #fff; }
.posters div:nth-child(1) { width: 34%; aspect-ratio: 1; background: linear-gradient(160deg, #a3283b, #3f0c16); }
.posters div:nth-child(2) { width: 28%; aspect-ratio: 3 / 4; background: linear-gradient(160deg, #e3b562, #7c5215); color: #2a1208; }
.posters div:nth-child(3) { width: 38%; aspect-ratio: 2.35 / 1; background: linear-gradient(160deg, #3c5d4c, #10231a); }

/* 大模型星环 */
.models { overflow: hidden; }
.models::before { content: ""; position: absolute; left: 50%; top: 45%; width: 1100px; height: 1100px; margin: -550px 0 0 -550px; border-radius: 50%; background: radial-gradient(circle, rgba(163,40,59,.22), transparent 60%); pointer-events: none; }
.models-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 64px; align-items: center; }
.galaxy { position: relative; aspect-ratio: 1; width: 100%; max-width: 580px; margin: 0 auto; }
.galaxy .ring { position: absolute; left: 0; right: 0; top: 50%; height: 44%; margin-top: -22%; border-radius: 50%; border: 1px solid rgba(217,179,108,.22); }
.galaxy .ring:nth-child(2) { left: 14%; right: 14%; height: 30%; margin-top: -15%; border-style: dashed; border-color: rgba(217,179,108,.16); }
.galaxy .ring:nth-child(3) { left: -6%; right: -6%; height: 56%; margin-top: -28%; border-color: rgba(163,40,59,.25); }
.sat { position: absolute; left: 50%; top: 50%; will-change: transform, opacity; }
.mcard { display: block; width: 154px; transform: translate(-50%, -50%); padding: 14px 14px 12px; border-radius: 16px; text-align: left; border: 1px solid rgba(217,179,108,.3); background: linear-gradient(180deg, rgba(40,15,24,.92), rgba(22,8,13,.92)); box-shadow: 0 18px 50px -18px rgba(0,0,0,.8), 0 0 36px -14px rgba(217,179,108,.5); transition: border-color .3s, box-shadow .3s; }
.mcard b { display: block; font-size: 15px; color: var(--gold-hi); font-weight: 600; }
.mcard span { display: block; margin-top: 2px; font-size: 12.5px; color: var(--dim); line-height: 1.5; }
.mcard[aria-pressed="true"], .mcard:hover { border-color: var(--gold-hi); box-shadow: 0 0 0 1px var(--gold), 0 0 50px -8px rgba(243,220,170,.7); }
.core-orb { position: absolute; left: 50%; top: 50%; width: 168px; height: 168px; margin: -84px 0 0 -84px; border-radius: 50%; display: grid; place-content: center; text-align: center; background: radial-gradient(circle at 38% 32%, #f7e2b3, #d9b36c 30%, #8e2a38 70%, #3a0e18); box-shadow: 0 0 80px rgba(217,179,108,.45), 0 0 160px rgba(163,40,59,.5), inset -18px -24px 50px rgba(0,0,0,.45); animation: core 5s ease-in-out infinite; }
.core-orb b { font-family: var(--serif); font-size: 22px; color: #2a1208; font-weight: 900; line-height: 1.2; }
.core-orb span { font-size: 12px; color: rgba(42,18,8,.75); }
@keyframes core { 50% { box-shadow: 0 0 110px rgba(217,179,108,.6), 0 0 200px rgba(163,40,59,.6), inset -18px -24px 50px rgba(0,0,0,.45); } }
.core-orb::before, .core-orb::after { content: ""; position: absolute; inset: -18px; border-radius: 50%; border: 1px solid rgba(243,220,170,.35); animation: ripple 3s var(--ease) infinite; }
.core-orb::after { animation-delay: 1.5s; }
@keyframes ripple { from { transform: scale(.9); opacity: 1; } to { transform: scale(1.9); opacity: 0; } }
.mdetail { padding: 36px; }
.mdetail .who { display: inline-block; padding: 4px 12px; border-radius: 999px; font-size: 12.5px; color: var(--gold-hi); background: rgba(217,179,108,.1); border: 1px solid rgba(217,179,108,.28); margin-bottom: 18px; }
.mdetail h3 { margin: 0 0 10px; font-family: var(--serif); font-size: clamp(26px, 2.6vw, 36px); line-height: 1.3; }
.mdetail .plain { margin: 0 0 22px; font-size: 17px; line-height: 1.9; color: var(--text); }
.mdetail ul { margin: 0; padding: 0; list-style: none; }
.mdetail li { padding: 12px 0 12px 22px; border-top: 1px solid var(--faint); font-size: 15px; color: var(--dim); position: relative; }
.mdetail li::before { content: ""; position: absolute; left: 0; top: 21px; width: 8px; height: 8px; border-radius: 2px; background: linear-gradient(135deg, var(--gold-hi), var(--red)); transform: rotate(45deg); }
.mdetail.swap { animation: swap .6s var(--ease); }
@keyframes swap { from { opacity: 0; transform: translateY(12px); filter: blur(6px); } }
.models-note { margin: 64px auto 0; max-width: 46em; text-align: center; font-size: 17px; line-height: 1.9; color: var(--dim); }
.models-note b { color: var(--text); font-weight: 600; }

@keyframes rot { to { transform: rotate(360deg); } }
/* GEO */
.geo { background: linear-gradient(180deg, transparent, rgba(29,10,17,.55) 40%, transparent); }
.geo-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: stretch; }
.geo-card { padding: 34px; }
.geo-card h3 { margin: 0 0 8px; font-family: var(--serif); font-size: 26px; }
.geo-card > p { margin: 0 0 24px; color: var(--dim); font-size: 15.5px; }
.ask { padding: 20px; border-radius: 16px; background: rgba(0,0,0,.28); border: 1px solid var(--faint); }
.ask .q { display: flex; gap: 10px; align-items: center; font-size: 15px; margin-bottom: 14px; }
.ask .q i { flex: none; width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; font-style: normal; font-size: 12px; background: rgba(245,238,231,.12); }
.ask .a { font-size: 14.5px; line-height: 1.9; color: var(--dim); min-height: 5.7em; }
.ask .a mark { background: rgba(217,179,108,.2); color: var(--gold-hi); padding: 0 3px; border-radius: 4px; }
.plats { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.plat { display: grid; grid-template-columns: 6em 5.5em 1fr; gap: 14px; align-items: center; padding: 12px 16px; border-radius: 12px; border: 1px solid var(--faint); font-size: 14.5px; transition: border-color .3s, background .3s; }
.plat:hover { border-color: rgba(217,179,108,.4); background: rgba(217,179,108,.05); }
.plat b { font-weight: 600; }
.plat .len { color: var(--gold-hi); font-size: 13px; }
.plat .sty { color: var(--dim); font-size: 13.5px; }
.geo-flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 28px; counter-reset: g; }
.geo-flow div { counter-increment: g; padding: 22px 22px 0 0; font-size: 15px; color: var(--dim); border-top: 1px solid var(--faint); position: relative; }
.geo-flow div::before { content: counter(g); display: block; font-family: var(--serif); font-size: 30px; color: var(--gold); margin-bottom: 6px; }
.geo-flow div.key::before { color: var(--gold-hi); text-shadow: 0 0 18px var(--gold); }
.geo-flow b { display: block; color: var(--text); font-size: 17px; font-weight: 600; margin-bottom: 4px; }
.media-strip { margin-top: 28px; padding: 30px 34px; display: grid; grid-template-columns: auto 1fr auto; gap: 40px; align-items: center; }
.media-strip .n { font-family: var(--serif); font-weight: 900; font-size: 56px; line-height: 1; }
.media-strip p { margin: 0; color: var(--dim); font-size: 15px; }
.media-strip .ais { display: flex; flex-wrap: wrap; gap: 6px; justify-content: flex-end; max-width: 300px; }
.media-strip .ais span { font-size: 12.5px; padding: 4px 10px; border-radius: 8px; border: 1px solid var(--faint); color: var(--dim); }
/* 积分计费 */
.price-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.meter { padding: 40px; }
.meter h3 { margin: 0 0 6px; font-size: 16px; font-weight: 500; color: var(--dim); }
.meter .total { font-family: var(--serif); font-size: 44px; font-weight: 900; line-height: 1.2; margin-bottom: 28px; }
.ledger { margin: 0; padding: 0; list-style: none; }
.ledger li { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 16px 0; border-top: 1px solid var(--faint); }
.ledger b { display: block; font-size: 15.5px; font-weight: 600; color: var(--text); }
.ledger span { font-size: 13.5px; color: var(--dim); }
.ledger em { flex: none; font-style: normal; font-size: 12.5px; padding: 3px 10px; border-radius: 999px; color: #a8e0c1; background: rgba(143,209,173,.1); border: 1px solid rgba(143,209,173,.25); }
.ledger-note { margin: 16px 0 0; font-size: 12.5px; color: rgba(184,166,161,.6); }
.price-points { margin: 0; padding: 0; list-style: none; }
.price-points li { padding: 22px 0; border-top: 1px solid var(--faint); }
.price-points h3 { margin: 0 0 4px; font-size: 19px; font-weight: 600; }
.price-points p { margin: 0; font-size: 15.5px; color: var(--dim); }

/* 对比：浅色段 */
.compare { background: var(--champagne); color: var(--ink); }
.compare .head p { color: var(--ink-dim); }
.compare .head .kicker { color: var(--red); } .compare .head .kicker::before { background: var(--red); }
.vs { display: grid; grid-template-columns: 1fr 1fr; border-radius: 24px; overflow: hidden; border: 1px solid rgba(36,19,25,.12); }
.vs > div { padding: 40px; }
.vs .old { background: #ece1ce; }
.vs .new { background: var(--ink); color: var(--text); }
.vs h3 { margin: 0 0 24px; font-family: var(--serif); font-size: 26px; }
.vs ul { margin: 0; padding: 0; list-style: none; }
.vs li { display: grid; grid-template-columns: 6em 1fr; gap: 16px; padding: 16px 0; border-top: 1px solid rgba(36,19,25,.12); font-size: 15.5px; }
.vs .new li { border-color: var(--faint); }
.vs li span { color: var(--ink-dim); font-size: 14px; }
.vs .new li span { color: var(--dim); }
.vs .new li b { color: var(--gold-hi); font-weight: 600; }

/* 角色 */
.roles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.role { padding: 38px 32px 32px; overflow: hidden; transition: transform .6s var(--ease), border-color .5s; }
.role::after { content: ""; position: absolute; inset: 0; border-radius: inherit; background: radial-gradient(400px 260px at var(--mx, 50%) var(--my, 0%), rgba(217,179,108,.14), transparent 60%); opacity: 0; transition: opacity .5s; pointer-events: none; }
.role:hover { transform: translateY(-4px); border-color: rgba(217,179,108,.35); }
.role:hover::after { opacity: 1; }
.role .glyph { font-family: var(--serif); font-weight: 900; font-size: 60px; line-height: 1; color: transparent; -webkit-text-stroke: 1px rgba(217,179,108,.6); margin-bottom: 26px; }
.role h3 { margin: 0 0 6px; font-family: var(--serif); font-size: 25px; }
.role > p { margin: 0 0 20px; color: var(--dim); font-size: 15px; }
.role ul { margin: 0; padding: 0; list-style: none; }
.role li { padding: 11px 0; border-top: 1px solid var(--faint); font-size: 15px; }

/* 申请 */
.apply { overflow: hidden; }
.apply .aurora { opacity: .6; }
.apply .wrap { display: grid; grid-template-columns: 1.1fr 1fr; gap: 80px; align-items: center; padding: 150px 0; }
.apply h2 { margin: 0 0 22px; font-family: var(--serif); font-weight: 900; font-size: clamp(36px, 4.6vw, 64px); line-height: 1.22; }
.apply .wrap > div > p { margin: 0; color: var(--dim); font-size: 18px; max-width: 26em; }
.form { padding: 40px; display: grid; gap: 20px; }
.field { display: grid; gap: 8px; }
.field label { font-size: 14px; color: var(--dim); }
.field input, .field select { height: 52px; padding: 0 16px; border-radius: 12px; border: 1px solid rgba(245,238,231,.16); background: rgba(0,0,0,.3); transition: border-color .25s, box-shadow .25s; }
.field select option { color: #222; }
.field input:focus, .field select:focus { outline: none; border-color: var(--gold); box-shadow: 0 0 0 4px rgba(217,179,108,.14); }
.field [aria-invalid="true"] { border-color: var(--red-hi); }
.field .err { font-size: 13px; color: #f0a0ac; }
.form .btn { width: 100%; margin-top: 6px; }
.form .fine { margin: 0; text-align: center; font-size: 13px; color: rgba(184,166,161,.75); }
.sent { text-align: center; padding: 32px 8px; }
.sent .ok { width: 64px; height: 64px; margin: 0 auto 20px; border-radius: 50%; display: grid; place-items: center; font-size: 28px; color: var(--night); background: linear-gradient(135deg, var(--gold-hi), var(--gold)); animation: pop .7s var(--ease); }
@keyframes pop { from { transform: scale(.4); opacity: 0; } }
.sent h3 { margin: 0 0 8px; font-family: var(--serif); font-size: 26px; }
.sent p { margin: 0; color: var(--dim); }
.foot-site { border-top: 1px solid var(--faint); color: var(--dim); font-size: 14px; }
.foot-site .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; padding: 36px 0; }
.foot-site a { text-decoration: none; }
.foot-site a:hover { color: var(--text); }
.footnote { font-size: 12.5px; color: rgba(184,166,161,.6); }

@media (max-width: 1080px) {
  .hero .wrap, .studio, .geo-grid, .apply .wrap, .models-grid, .price-grid { grid-template-columns: 1fr; }
  .stage { height: 600px; }
  .bento { grid-template-columns: 1fr 1fr; }
  .t-wide, .t-narrow, .t-half { grid-column: span 2; }
  .roles { grid-template-columns: 1fr; }
  .media-strip { grid-template-columns: 1fr; gap: 16px; }
  .media-strip .ais { justify-content: flex-start; max-width: none; }
  .block { padding: 110px 0; }
}
@media (max-width: 720px) {
  .nav { display: none; }
  .top .btn { margin-left: auto; }
  .wrap { width: min(100% - 32px, var(--wrap)); }
  .hero .wrap { padding: 104px 0 64px; gap: 24px; }
  .stage { height: 520px; }
  .phone { width: 240px; }
  .chip { font-size: 12px; padding: 7px 10px; }
  .hero-meta { gap: 24px; }
  .steps { flex-direction: column; }
  .opts { grid-template-columns: 1fr 1fr; }
  .opts-2 { grid-template-columns: 1fr; }
  .studio-main, .studio-side, .tile, .geo-card, .form { padding: 22px; }
  .bento { grid-template-columns: 1fr; }
  .t-wide, .t-narrow, .t-half { grid-column: auto; }
  .plat { grid-template-columns: 5em 1fr; }
  .mcard { width: 118px; padding: 10px 11px 9px; }
  .mcard b { font-size: 13.5px; }
  .core-orb { width: 124px; height: 124px; margin: -62px 0 0 -62px; }
  .core-orb b { font-size: 17px; }
  .mdetail { padding: 24px; }
  .plat .sty { grid-column: 1 / -1; }
  .geo-flow { grid-template-columns: 1fr 1fr; row-gap: 20px; }
  .vs { grid-template-columns: 1fr; }
  .meter { padding: 24px; }
  .vs > div { padding: 26px; }
  .block, .apply .wrap { padding: 90px 0; }
  .pane-foot { flex-direction: column; align-items: stretch; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .in, .reveal { opacity: 1; transform: none; filter: none; clip-path: none; }
}