/* =========================================================
   天问 OPC · 着陆页 v2
   版式：居中导航 + 满屏电光蓝颗粒首屏；每一节以短横线眉题和「白 + 灰」双色标题开场
   ========================================================= */
.lp { min-height: 100%; position: relative; overflow-x: clip; }
.wrap { max-width: 1320px; margin: 0 auto; padding-left: max(24px, env(safe-area-inset-left, 0px)); padding-right: max(24px, env(safe-area-inset-right, 0px)); }
.h2 { font-size: clamp(34px, 4.6vw, 64px); font-weight: 500; letter-spacing: -.045em; line-height: 1.06; max-width: 17em; margin-top: 22px; }
.h2 .dim { color: var(--ink-dim); }
.sec { padding-block: 140px 0; }

/* 导航 */
.lp-nav { position: fixed; left: 0; right: 0; top: 0; z-index: 40; padding-top: env(safe-area-inset-top, 0px); transition: background .35s, border-color .35s; border-bottom: 1px solid transparent; }
.lp-nav.scrolled { background: color-mix(in srgb, var(--bg) 72%, transparent); border-bottom-color: var(--line); -webkit-backdrop-filter: blur(22px) saturate(140%); backdrop-filter: blur(22px) saturate(140%); }
.lp-nav .bar { max-width: 1320px; margin: 0 auto; height: 76px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 16px; padding-left: max(24px, env(safe-area-inset-left, 0px)); padding-right: max(24px, env(safe-area-inset-right, 0px)); }
.lp-nav .links { display: flex; gap: 2px; }
.lp-nav .links a { height: 34px; padding: 0 13px; border-radius: 999px; display: inline-flex; align-items: center; color: var(--ink-2); font-size: 14px; transition: color .2s, background .2s; }
.lp-nav .links a:hover { color: var(--ink); }
.lp-nav .links a.on { color: var(--ink); background: var(--hover); }
.lp-nav:not(.scrolled) .links a, .lp-nav:not(.scrolled) .acts .iconbtn { color: rgba(255, 255, 255, .78); }
.lp-nav:not(.scrolled) .links a:hover, .lp-nav:not(.scrolled) .links a.on { color: #fff; background: rgba(255, 255, 255, .1); }
.lp-nav:not(.scrolled) .acts .btn.ghost { color: #fff; border-color: rgba(255, 255, 255, .3); background: rgba(255, 255, 255, .06); }
.lp-nav:not(.scrolled) .logo .wm b { color: #fff; } .lp-nav:not(.scrolled) .logo .wm small { color: rgba(255, 255, 255, .6); }
.lp-nav:not(.scrolled) .logo .l-light { display: none; } .lp-nav:not(.scrolled) .logo .l-dark { display: block; }
.lp-nav .center { display: flex; align-items: center; gap: 14px; }
.lp-nav .acts { display: flex; align-items: center; justify-content: flex-end; gap: 8px; }
.lp-nav .burger { display: none; }
.lp-sheet { position: fixed; inset: 0; z-index: 60; background: var(--bg); padding: calc(84px + env(safe-area-inset-top, 0px)) max(24px, env(safe-area-inset-right, 0px)) 24px max(24px, env(safe-area-inset-left, 0px)); display: flex; flex-direction: column; gap: 4px; overflow: auto; animation: fadeIn .2s; }
.lp-sheet a[data-s] { padding: 14px 0; font-size: 28px; font-weight: 500; letter-spacing: -.03em; border-bottom: 1px solid var(--line); }

/* 首屏 */
.hero { position: relative; min-height: min(100vh, 940px); display: flex; align-items: stretch; overflow: hidden; border-radius: 0 0 36px 36px; }
.hero::before, .hero::after { display: none; }
.hero > .gx { --gx-grain: .65; }
.hero-in { position: relative; z-index: 2; width: 100%; display: flex; flex-direction: column; justify-content: flex-end; padding-top: 120px; padding-bottom: 44px; }
.hero-top { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; color: #fff; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; height: 34px; padding: 0 14px; border-radius: 999px; font-size: 13px; background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .2); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); }
.wordmark { font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif; font-weight: 900; color: #fff; line-height: .86; letter-spacing: -.05em; display: flex; align-items: baseline; justify-content: center; gap: .14em; white-space: nowrap; }
.hero .wordmark { font-size: clamp(96px, 19.5vw, 300px); margin: 34px 0 10px; text-shadow: 0 20px 80px rgba(0, 0, 60, .35); }
.wordmark .opc { font-family: "Inter", sans-serif; font-weight: 800; letter-spacing: -.06em; }
.rot { font-size: clamp(22px, 2.6vw, 36px); font-weight: 500; letter-spacing: -.035em; color: #fff; text-align: center; margin-top: 18px; }
.rot .rw { display: inline-block; margin-left: .3em; color: rgba(255, 255, 255, .7); min-width: 5em; text-align: left; }
.rot .rw.in { animation: rwIn .9s cubic-bezier(.2, .7, .2, 1); }
@keyframes rwIn { from { opacity: 0; filter: blur(14px); transform: translateY(10px); letter-spacing: .1em; } to { opacity: 1; filter: blur(0); transform: none; } }
.hero-rule { display: flex; align-items: center; gap: 22px; margin-top: 72px; color: #fff; font-size: 17px; }
.hero-rule i { flex: 1; height: 1px; background: rgba(255, 255, 255, .32); }
.hero-rule .btn.inv { background: #fff; color: #0A0A0C; }

/* 玻璃立方体 */
.cube { position: absolute; z-index: 1; width: var(--s); height: var(--s); transform-style: preserve-3d; animation: cubeSpin var(--t) linear infinite; pointer-events: none; }
.cube i { position: absolute; inset: 0; border-radius: 10%; border: 1px solid rgba(190, 200, 255, .55); background: linear-gradient(140deg, rgba(160, 175, 255, .32), rgba(30, 50, 255, .1) 55%, rgba(255, 120, 200, .12)); box-shadow: inset 0 0 calc(var(--s) * .25) rgba(120, 140, 255, .35); }
.cube i:nth-child(1) { transform: translateZ(calc(var(--s) / 2)); } .cube i:nth-child(2) { transform: rotateY(180deg) translateZ(calc(var(--s) / 2)); }
.cube i:nth-child(3) { transform: rotateY(90deg) translateZ(calc(var(--s) / 2)); } .cube i:nth-child(4) { transform: rotateY(-90deg) translateZ(calc(var(--s) / 2)); }
.cube i:nth-child(5) { transform: rotateX(90deg) translateZ(calc(var(--s) / 2)); } .cube i:nth-child(6) { transform: rotateX(-90deg) translateZ(calc(var(--s) / 2)); }
.cube.c1 { --s: 150px; --t: 34s; left: -46px; top: 13%; }
.cube.c2 { --s: 58px; --t: 22s; right: 21%; top: 15%; animation-direction: reverse; }
.cube.c3 { --s: 120px; --t: 28s; right: -34px; top: 54%; }
@keyframes cubeSpin { from { transform: rotateX(-24deg) rotateY(0deg) rotateZ(8deg); } to { transform: rotateX(-24deg) rotateY(360deg) rotateZ(8deg); } }

/* 关于 */
.about { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 56px; align-items: end; }
.trio { display: flex; gap: 14px; margin-top: 40px; }
.tri { position: relative; width: 120px; height: 120px; border-radius: 22px; overflow: hidden; }
.tri span { position: absolute; left: 12px; bottom: 10px; z-index: 3; color: #fff; font-size: 13px; font-weight: 500; }
.tri .gx-ico { top: 42%; }
.about-p { display: flex; flex-direction: column; gap: 18px; color: var(--ink-2); font-size: 15.5px; line-height: 1.85; }
.facts { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-top: 10px; padding-top: 22px; border-top: 1px solid var(--line); }
.facts b { display: block; font-size: 34px; font-weight: 500; letter-spacing: -.04em; color: var(--ink); font-variant-numeric: tabular-nums; }
.facts span { font-size: 13px; color: var(--ink-3); }
.stage-panel { position: relative; margin-top: 72px; border-radius: 30px; padding: clamp(18px, 4vw, 64px); display: grid; place-items: center; min-height: 560px; overflow: hidden; }
.stage-panel::before, .stage-panel::after { display: none; }
.stage-panel > .gx { --gx-grain: .6; }

/* 工作台组件 */
.wb { position: relative; z-index: 2; width: min(860px, 100%); border-radius: 26px; padding: 20px; display: flex; flex-direction: column; gap: 14px; background: rgba(8, 8, 14, .66); border: 1px solid rgba(255, 255, 255, .12); -webkit-backdrop-filter: blur(26px) saturate(150%); backdrop-filter: blur(26px) saturate(150%); box-shadow: 0 40px 100px -30px rgba(0, 0, 0, .8); color: #fff; }
.wb-h { display: flex; align-items: center; gap: 12px; }
.wb-h b { display: block; font-size: 15px; font-weight: 600; } .wb-h span.s { display: block; font-size: 12px; color: rgba(255, 255, 255, .55); }
.live-pill { margin-left: auto; display: inline-flex; align-items: center; gap: 8px; height: 28px; padding: 0 12px; border-radius: 999px; font-size: 12px; background: rgba(75, 214, 155, .12); color: #6BE3B0; }
.live-dot { width: 7px; height: 7px; border-radius: 50%; background: #4BD69B; animation: ping 1.8s infinite; }
@keyframes ping { 0% { box-shadow: 0 0 0 0 rgba(75, 214, 155, .6); } 100% { box-shadow: 0 0 0 9px transparent; } }
.engines { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 8px; }
.engines button { position: relative; overflow: hidden; display: flex; flex-direction: column; align-items: center; gap: 6px; padding: 12px 2px 10px; border-radius: 16px; border: 1px solid rgba(255, 255, 255, .1); background: rgba(255, 255, 255, .04); font-size: 12px; color: rgba(255, 255, 255, .65); transition: all .25s; }
.engines button:hover { color: #fff; border-color: rgba(255, 255, 255, .22); }
.engines button.on { color: #fff; background: var(--brand-2); border-color: transparent; box-shadow: 0 12px 30px -12px rgba(1, 30, 255, .9); }
.engines button.on::after { content: ""; position: absolute; left: 0; bottom: 0; height: 2px; background: #fff; animation: eng 4.2s linear forwards; }
@keyframes eng { from { width: 0; } to { width: 100%; } }
.live { border-radius: 18px; border: 1px solid rgba(255, 255, 255, .1); background: rgba(0, 0, 0, .35); overflow: hidden; }
.live .lp-prompt { display: flex; align-items: center; gap: 10px; padding: 12px 14px; border-bottom: 1px solid rgba(255, 255, 255, .08); font-size: 13.5px; min-height: 48px; }
.live .lp-prompt .caret { width: 2px; height: 16px; background: #8C9BFF; animation: blink 1s steps(2) infinite; flex: none; }
@keyframes blink { 50% { opacity: 0; } }
.live .lp-prompt .go { margin-left: auto; height: 28px; padding: 0 11px; border-radius: 999px; background: #fff; color: #0A0A0C; font-size: 12px; font-weight: 600; display: inline-flex; align-items: center; gap: 4px; flex: none; }
.live .lv { position: relative; height: 280px; padding: 14px; }
.lv canvas { display: block; width: 100%; height: 100%; border-radius: 12px; }
.lv .lv-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; height: 100%; }
.lv .lv-grid > div { position: relative; border-radius: 14px; overflow: hidden; }
.lv .sp { font-size: 14px; line-height: 2; }
.lv .sp .ln { display: grid; grid-template-columns: 56px 1fr; gap: 8px; opacity: 0; transform: translateY(4px); animation: lnIn .45s forwards; }
.lv .sp .ln.h { grid-template-columns: 1fr; color: #8C9BFF; font-weight: 600; }
.lv .sp .ln b { color: #fff; font-weight: 500; } .lv .sp .ln span { color: rgba(255, 255, 255, .7); }
@keyframes lnIn { to { opacity: 1; transform: none; } }
.lv .mini-tl { display: flex; flex-direction: column; gap: 10px; height: 100%; justify-content: center; position: relative; }
.lv .mini-tl .tr { position: relative; height: 40px; border-radius: 10px; background: rgba(255, 255, 255, .05); }
.lv .mini-tl .tr i { position: absolute; top: 5px; bottom: 5px; border-radius: 7px; box-shadow: inset 0 1px 0 rgba(255, 255, 255, .25); }
.lv .mini-tl .ph { position: absolute; top: 0; bottom: 0; width: 2px; background: #fff; left: 0; animation: phMove 4s linear infinite; box-shadow: 0 0 12px #8C9BFF; }
@keyframes phMove { to { left: 100%; } }
.lv .mini-board { position: relative; height: 100%; border-radius: 12px; background-image: radial-gradient(rgba(255, 255, 255, .1) 1.2px, transparent 1.2px); background-size: 18px 18px; }
.lv .mini-board .nd { position: absolute; padding: 9px 12px; border-radius: 12px; font-size: 12px; font-weight: 500; color: #fff; background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .18); animation: pop .5s backwards; }
.lv .mini-board .nd.b { background: var(--brand-2); border-color: transparent; }
.lv .mini-board .nd.w { background: #fff; color: #0A0A0C; }
.lv .mini-board svg { position: absolute; inset: 0; width: 100%; height: 100%; }

/* 适合谁 */
.who-tabs { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; margin-top: 56px; }
.who-tabs button { position: relative; aspect-ratio: 1 / .78; border-radius: 999px 999px 26px 26px; border: 1px solid var(--line-2); background: var(--glass-3); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px; color: var(--ink-2); font-size: 16px; transition: all .3s; overflow: hidden; }
.who-tabs button:hover { color: var(--ink); border-color: var(--ink-3); }
.who-tabs button.on { color: var(--ink); border-color: var(--brand-2); box-shadow: inset 0 0 0 1px var(--brand-2), 0 0 60px -20px rgba(1, 30, 255, .9); background: radial-gradient(70% 60% at 50% 100%, rgba(26, 51, 255, .35), transparent 70%), var(--glass-3); }
.who-box { margin-top: 20px; border-radius: 22px; border: 1px solid var(--line-2); padding: 26px 28px; display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 24px; align-items: center; background: var(--glass-3); }
.who-box p { color: var(--ink-2); font-size: 15px; line-height: 1.8; }
.who-mods { display: flex; flex-wrap: wrap; gap: 8px; justify-content: flex-end; align-items: center; }
.who-mods span { height: 32px; padding: 0 13px; border-radius: 999px; border: 1px solid var(--line-2); display: inline-flex; align-items: center; font-size: 13px; color: var(--ink-2); }

/* 超大跑马灯 */
.big-marquee { margin-top: 140px; overflow: hidden; border-block: 1px solid var(--line); -webkit-mask: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); mask: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.big-marquee .track { display: flex; align-items: baseline; gap: .35em; width: max-content; padding-block: 26px; font-size: clamp(56px, 8vw, 120px); font-weight: 500; letter-spacing: -.05em; animation: marq 30s linear infinite; }
.big-marquee span { color: var(--ink); } .big-marquee i { font-style: normal; color: var(--brand-2); }
@keyframes marq { to { transform: translateX(-50%); } }

/* 十大板块横向卡片 */
.mod-rail { display: flex; gap: 18px; overflow-x: auto; scroll-snap-type: x mandatory; scroll-padding-inline: max(24px, calc((100vw - 1320px) / 2 + 24px)); padding: 56px max(24px, calc((100vw - 1320px) / 2 + 24px)) 8px; scrollbar-width: none; }
.mod-rail::-webkit-scrollbar { display: none; }
.mcard { flex: none; width: 290px; scroll-snap-align: start; display: flex; flex-direction: column; gap: 8px; }
.mcard .mimg { position: relative; aspect-ratio: 4 / 5; border-radius: 22px; overflow: hidden; margin-bottom: 8px; transition: transform .4s cubic-bezier(.2, .7, .2, 1); }
.mcard:hover .mimg { transform: translateY(-6px); }
.mcard .mimg .gx-ico { top: 46%; }
.mcard .mno { position: absolute; left: 16px; top: 14px; z-index: 3; font-family: var(--mono); font-size: 12px; color: rgba(255, 255, 255, .7); }
.mcard b { font-size: 19px; font-weight: 500; letter-spacing: -.02em; }
.mcard > span { font-size: 13px; color: var(--ink-3); }
.rail-foot { display: flex; align-items: center; gap: 16px; margin-top: 36px; font-size: 15px; }
.rail-foot i { flex: 1; height: 1px; background: var(--line-2); }
.rail-foot .rbtn { border: 1px solid var(--line-2); border-radius: 50%; }

/* AI 工作室（议程式） */
.agenda { margin-top: 56px; display: flex; flex-direction: column; gap: 18px; }
.ag-head { display: grid; grid-template-columns: 220px minmax(0, 1fr); border-radius: 16px; overflow: hidden; background: var(--surface-2); margin-top: 22px; }
.ag-head:first-child { margin-top: 0; }
.ag-tag { background: var(--brand-2); color: #fff; font-size: clamp(22px, 2.4vw, 34px); font-weight: 500; letter-spacing: -.04em; padding: 16px 24px; }
.ag-title { font-size: clamp(22px, 2.4vw, 34px); font-weight: 500; letter-spacing: -.04em; padding: 16px 28px; }
.ag-row { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 0; }
.ag-time { padding: 18px 24px; font-size: 20px; font-weight: 500; letter-spacing: -.02em; }
.ag-time small { display: block; font-size: 12.5px; color: var(--ink-3); font-weight: 400; letter-spacing: 0; margin-top: 4px; }
.ag-card { position: relative; display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: 28px; padding: 26px 30px; border-radius: 20px; border: 1px solid var(--line); background: var(--surface); transition: border-color .3s, background .3s; }
.ag-card:hover { border-color: color-mix(in srgb, var(--brand-2) 60%, var(--line)); }
.ag-card h3 { font-size: clamp(22px, 2.2vw, 30px); font-weight: 500; letter-spacing: -.04em; }
.ag-card p { color: var(--ink-2); margin-top: 8px; font-size: 14.5px; }
.ag-caps { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.ag-caps span { font-size: 12.5px; padding: 4px 11px; border-radius: 999px; background: var(--hover); color: var(--ink-2); }
.ag-side { display: flex; align-items: center; gap: 16px; }
.ag-thumb { position: relative; width: 104px; height: 104px; border-radius: 18px; overflow: hidden; flex: none; }
.ag-side b { display: block; font-size: 13px; font-weight: 500; } .ag-side span { font-size: 13px; color: var(--ink-3); }
.ag-go { position: absolute; right: 18px; top: 18px; width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; background: var(--blue); color: #fff; transition: transform .3s; }
.ag-card:hover .ag-go { transform: rotate(45deg); }

/* 商业闭环 */
.loop { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; margin-top: 56px; border-top: 1px solid var(--line-2); }
.lstep { padding: 30px 26px 10px 0; display: flex; flex-direction: column; gap: 12px; border-right: 1px solid var(--line); }
.lstep:not(:first-child) { padding-left: 26px; } .lstep:last-child { border-right: 0; }
.lno { font-size: clamp(56px, 6vw, 88px); font-weight: 500; letter-spacing: -.06em; line-height: 1; color: transparent; -webkit-text-stroke: 1px var(--ink-3); }
.lstep:hover .lno { color: var(--brand-2); -webkit-text-stroke-color: transparent; }
.lstep h3 { font-size: 22px; font-weight: 500; letter-spacing: -.03em; }
.lstep p { color: var(--ink-2); font-size: 14px; }
.lmods { display: flex; flex-wrap: wrap; gap: 6px; }
.lmods span { font-size: 12px; padding: 3px 10px; border-radius: 999px; background: var(--info-bg); color: var(--brand); }

/* 分发渠道 */
.chgrid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin-top: 56px; }
.chcell { height: 96px; border-radius: 18px; background: var(--surface); border: 1px solid var(--line); display: flex; align-items: center; justify-content: center; gap: 12px; font-size: 20px; font-weight: 500; letter-spacing: -.02em; color: var(--brand); text-align: center; line-height: 1.3; }
.chcell .chm { width: 36px; height: 36px; border-radius: 11px; display: grid; place-items: center; background: var(--brand-2); color: #fff; font-size: 15px; }
.chcell.more { color: var(--ink-2); font-size: 15px; }
.chcell.more small { font-size: 12px; color: var(--ink-3); }

/* 常见问题 */
.faq-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 56px; align-items: start; }
.faq { display: flex; flex-direction: column; gap: 12px; }
.faq details { border-radius: 16px; background: var(--surface); border: 1px solid var(--line); padding: 0 22px; transition: border-color .2s; }
.faq details[open] { border-color: var(--line-2); }
.faq summary { list-style: none; cursor: pointer; display: flex; align-items: center; gap: 12px; padding: 20px 0; font-size: 15.5px; }
.faq summary::-webkit-details-marker { display: none; }
.faq .pm { margin-left: auto; width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; border: 1px solid var(--line-2); transition: transform .3s, background .3s; flex: none; }
.faq details[open] .pm { transform: rotate(45deg); background: var(--brand-2); color: #fff; border-color: transparent; }
.faq details p { color: var(--ink-2); padding: 0 0 22px; line-height: 1.8; font-size: 14.5px; }

/* 会员方案 */
.plans-wrap { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.6fr); gap: 40px; align-items: start; margin-top: 56px; }
.member-card-stage { position: sticky; top: 120px; height: 520px; display: grid; place-items: center; perspective: 1200px; }
.member-card { position: relative; width: 250px; height: 390px; border-radius: 26px; overflow: hidden; transform: rotateY(-24deg) rotateX(10deg) rotateZ(-14deg); animation: mcFloat 7s ease-in-out infinite alternate; box-shadow: 0 0 0 1px rgba(200, 210, 255, .6), -12px 0 40px -8px rgba(255, 110, 190, .45), 20px 30px 80px -10px rgba(1, 30, 255, .7); }
.member-card::after { content: ""; position: absolute; inset: 0; z-index: 3; background: linear-gradient(115deg, transparent 30%, rgba(255, 255, 255, .28) 45%, transparent 58%); background-size: 260% 100%; animation: sheen 5s ease-in-out infinite; pointer-events: none; }
@keyframes sheen { from { background-position: 120% 0; } to { background-position: -60% 0; } }
@keyframes mcFloat { to { transform: rotateY(-8deg) rotateX(4deg) rotateZ(-10deg) translateY(-14px); } }
.mc-in { position: absolute; inset: 0; z-index: 2; padding: 26px; display: flex; flex-direction: column; color: #fff; }
.mc-in img { width: 44px; border-radius: 11px; }
.mc-n { margin-top: auto; font-size: 30px; font-weight: 600; letter-spacing: -.03em; }
.mc-s { font-family: var(--mono); font-size: 11px; letter-spacing: .3em; opacity: .75; margin-top: 4px; }
.mc-dash { height: 0; border-top: 2px dashed rgba(255, 255, 255, .45); margin: 22px -26px 14px; }
.mc-no { font-family: var(--mono); font-size: 12px; opacity: .8; }
.plan-list { display: flex; flex-direction: column; gap: 22px; }
.plan-row { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); gap: 10px; }
.plan-l { border-radius: 22px; padding: 28px; background: linear-gradient(160deg, rgba(26, 51, 255, .14), transparent 60%), var(--surface); border: 1px solid var(--line-2); }
.plan-l h3 { font-size: 24px; font-weight: 500; letter-spacing: -.03em; }
.plan-l p { color: var(--ink-2); margin-top: 10px; font-size: 14.5px; }
.plan-l ul { list-style: none; margin: 24px 0 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.plan-l li { padding-left: 14px; border-left: 3px solid var(--line-2); font-size: 14.5px; }
.plan-r { border-radius: 22px; padding: 24px; display: flex; flex-direction: column; min-height: 300px; }
.ptag2 { align-self: flex-start; height: 28px; padding: 0 10px; border-radius: 8px; display: inline-flex; align-items: center; font-size: 13px; background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .25); }
.pp { font-size: clamp(44px, 5vw, 64px); font-weight: 500; letter-spacing: -.05em; margin-top: 20px; line-height: 1; }
.pu { margin-top: 8px; font-size: 16px; color: rgba(255, 255, 255, .85); }
.plan-btn { margin-top: auto; justify-content: space-between; height: 48px; padding: 0 18px; }

/* 页脚 */
.lp-foot { margin-top: 160px; }
.foot-cta { display: flex; align-items: flex-end; justify-content: space-between; gap: 28px; flex-wrap: wrap; padding-bottom: 56px; border-bottom: 1px solid var(--line); }
.foot-cta .h2 { margin-top: 0; }
.foot-row { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; flex-wrap: wrap; padding-block: 40px 28px; }
.soc { display: flex; gap: 10px; }
.soc a { width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; border: 1px solid var(--line-2); color: var(--ink-2); transition: all .2s; }
.soc a:hover { color: #fff; background: var(--brand-2); border-color: transparent; }
.foot-pills { display: flex; flex-wrap: wrap; gap: 8px; }
.foot-pills a { height: 34px; padding: 0 14px; border-radius: 999px; background: var(--surface-2); border: 1px solid var(--line); display: inline-flex; align-items: center; font-size: 13px; color: var(--ink-2); }
.foot-pills a:hover { color: var(--ink); }
.foot-bottom { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding-block: 22px; border-top: 1px solid var(--line); color: var(--ink-3); font-size: 13px; }
.foot-mark { position: relative; height: clamp(150px, 19vw, 300px); overflow: hidden; display: flex; align-items: flex-end; border-radius: 36px 36px 0 0; }
.foot-mark::before, .foot-mark::after { display: none; }
.foot-mark .wordmark { position: relative; z-index: 2; width: 100%; font-size: clamp(110px, 21vw, 330px); padding: 0 max(24px, env(safe-area-inset-left, 0px)); transform: translateY(18%); opacity: .95; }

/* 响应式 */
@media (max-width: 1100px) {
  .lp-nav .links a:nth-child(n+4) { display: none; }
  .ag-head, .ag-row { grid-template-columns: 160px minmax(0, 1fr); }
  .ag-card { grid-template-columns: minmax(0, 1fr); }
  .chgrid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
  .lp-nav .bar { grid-template-columns: auto 1fr; }
  .lp-nav .links, .lp-nav .acts .hide-m { display: none; }
  .lp-nav .burger { display: grid; }
  .lp-nav .center .btn { display: none; }
  .sec { padding-block: 96px 0; }
  .about, .faq-grid, .plans-wrap { grid-template-columns: minmax(0, 1fr); gap: 36px; }
  .member-card-stage { position: relative; top: 0; height: 420px; }
  .who-tabs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .who-box { grid-template-columns: minmax(0, 1fr); }
  .who-mods { justify-content: flex-start; }
  .loop { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lstep:nth-child(2) { border-right: 0; } .lstep:nth-child(3) { padding-left: 0; }
  .engines { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .hero-rule { flex-wrap: wrap; margin-top: 44px; } .hero-rule i { min-width: 30px; }
  .big-marquee { margin-top: 96px; }
}
@media (max-width: 620px) {
  .wrap { padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }
  .lp-nav .bar { padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }
  .hero { border-radius: 0 0 26px 26px; min-height: 700px; }
  .hero .wordmark { font-size: 21vw; }
  .hero-top .hero-badge { display: none; }
  .hero-rule { font-size: 14px; gap: 12px; } .hero-rule .btn { width: 100%; justify-content: space-between; padding-left: 20px; }
  .cube.c1 { --s: 90px; } .cube.c3 { --s: 70px; }
  .trio { gap: 10px; } .tri { width: calc((100% - 20px) / 3); height: auto; aspect-ratio: 1; }
  .facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stage-panel { padding: 12px; border-radius: 22px; min-height: 0; }
  .wb { padding: 14px; }
  .live .lv { height: 230px; }
  .lv .lv-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .who-tabs { gap: 10px; } .who-tabs button { font-size: 14px; }
  .mcard { width: 240px; }
  .ag-head, .ag-row { grid-template-columns: minmax(0, 1fr); }
  .ag-time { padding: 12px 4px 4px; font-size: 16px; } .ag-time small { display: inline; margin-left: 8px; }
  .ag-card { padding: 22px 20px; } .ag-thumb { width: 76px; height: 76px; }
  .loop { grid-template-columns: minmax(0, 1fr); }
  .lstep { border-right: 0; padding-left: 0 !important; border-bottom: 1px solid var(--line); padding-bottom: 24px; }
  .chgrid { grid-template-columns: repeat(2, minmax(0, 1fr)); } .chcell { height: 80px; font-size: 17px; }
  .plan-row { grid-template-columns: minmax(0, 1fr); }
  .plan-r { min-height: 240px; }
  .rail-foot span { display: none; }
}