/* ===== 公司 App 商店 · 样式（原生 CSS，组件目录见 .productflow/artifacts/phase-2/component-catalog.md） ===== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--color-bg); color: var(--color-text);
  font: var(--fw-regular) var(--fs-body)/var(--lh-normal) var(--font-sans);
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  letter-spacing: -0.01em; overflow-x: hidden;
}
body.menu-open { overflow: hidden; }
img, svg { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible, summary:focus-visible, [tabindex]:focus-visible { outline: 2px solid var(--blue-500); outline-offset: 4px; border-radius: 4px; }
h1, h2, h3, h4, p, ul, ol, dl, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
code { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: .92em; }
::selection { background: #d9e4ed; color: var(--gray-900); }
[id] { scroll-margin-top: 120px; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: 16px; top: -48px; z-index: 100; background: var(--gray-900); color: #fff; padding: 8px 14px; border-radius: var(--r-pill); font-size: var(--fs-small); }
.skip:focus { top: 8px; }
.ic { width: 1.25em; height: 1.25em; flex: none; }
.wrap { width: min(100% - 44px, 1180px); margin-inline: auto; }
.br-h5 { display: none; }

/* ---- 字体层级 ---- */
.eyebrow { color: var(--color-text-muted); font-size: var(--fs-small); font-weight: var(--fw-semibold); letter-spacing: .06em; text-transform: uppercase; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.t-display { text-wrap: balance; font-size: clamp(44px, 5.6vw, var(--fs-display)); line-height: var(--lh-tight); font-weight: var(--fw-bold); letter-spacing: -0.025em; }
.t-h2 { font-size: clamp(32px, 3.4vw, var(--fs-h2)); line-height: 1.08; font-weight: var(--fw-bold); letter-spacing: -0.02em; }
.lead { font-size: clamp(17px, 1.45vw, var(--fs-lead)); line-height: 1.5; color: var(--color-text-muted); }
.c-pill { display: inline-flex; align-items: center; padding: 3px 10px; border-radius: var(--r-pill); background: rgba(0,0,0,.06); font-size: var(--fs-caption); font-weight: var(--fw-semibold); letter-spacing: 0; text-transform: none; color: inherit; }

/* ---- Button ---- */
.c-btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; min-height: 44px; padding: 10px 22px; border-radius: var(--r-pill); font-size: var(--fs-body); font-weight: var(--fw-semibold); letter-spacing: -0.01em; transition: transform .18s ease, background .18s ease, color .18s ease, box-shadow .18s ease, filter .18s ease; white-space: nowrap; }
.c-btn--primary { background: var(--color-action-primary); color: var(--color-action-on-primary); }
.c-btn--primary:hover { filter: brightness(1.18); }
.c-btn--primary:active { transform: scale(.98); }
.c-btn--secondary { background: transparent; color: inherit; box-shadow: inset 0 0 0 1.5px currentColor; }
.c-btn--secondary:hover { background: rgba(127,127,127,.12); }
.c-btn--link { min-height: 0; padding: 4px 0; color: var(--color-link); font-weight: var(--fw-regular); border-radius: 2px; }
.c-btn--link:hover { text-decoration: underline; }
.c-btn--sm { min-height: 32px; padding: 6px 14px; font-size: var(--fs-small); }
.c-btn--lg { min-height: 56px; padding: 14px 32px; font-size: var(--fs-lead); }
.c-btn[aria-disabled="true"] { opacity: .4; pointer-events: none; }

/* ---- SubNav ---- */
.c-subnav { position: sticky; top: 56px; z-index: 40; background: rgba(255,255,255,.82); -webkit-backdrop-filter: saturate(180%) blur(20px); backdrop-filter: saturate(180%) blur(20px); border-bottom: 1px solid rgba(0,0,0,.06); }
.c-subnav[data-theme="dark"] { background: rgba(0,0,0,.72); color: #f5f5f7; border-bottom-color: rgba(255,255,255,.1); }
.c-subnav__inner { height: 52px; display: flex; align-items: center; gap: 28px; }
.c-subnav__name { display: inline-flex; align-items: center; gap: 10px; font-size: 19px; font-weight: var(--fw-semibold); letter-spacing: -0.01em; margin-right: auto; }
.c-subnav__name img { width: 28px; height: 28px; border-radius: 7px; }
.c-subnav__links { display: flex; gap: 24px; }
.c-subnav__links a { font-size: var(--fs-caption); opacity: .75; position: relative; padding: 4px 0; }
.c-subnav__links a:hover, .c-subnav__links a.is-active { opacity: 1; }
.c-subnav__links a.is-active::after { content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 2px; background: currentColor; border-radius: 2px; }
.c-subnav[data-theme="dark"] .c-btn--primary { background: #f5f5f7; color: #000; }

/* ---- 动效：进入视口 / 首屏分级出现 ---- */
.js .reveal { opacity: 0; transform: translateY(26px); transition: opacity .9s cubic-bezier(.2,.65,.3,1), transform .9s cubic-bezier(.2,.65,.3,1); transition-delay: calc(var(--d, 0) * 90ms); }
.js .reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
  *, *::before, *::after { animation-duration: .001s !important; animation-iteration-count: 1 !important; transition-duration: .001s !important; }
}

/* ---- Steps（公测区折叠面板内的三步） ---- */
.c-steps { display: grid; gap: 12px; margin-top: 16px; counter-reset: step; }
.c-steps__item { position: relative; background: #fff; border-radius: var(--r-lg); border: 1px solid var(--color-border); padding: 16px 52px 16px 18px; }
.c-steps__num { position: absolute; top: 16px; right: 14px; width: 26px; height: 26px; border-radius: 50%; background: var(--gray-900); color: #fff; display: grid; place-items: center; font-size: var(--fs-caption); font-weight: var(--fw-bold); }
.c-steps__icon { display: none; }
.c-steps__title { font-size: var(--fs-body); font-weight: var(--fw-semibold); }
.c-steps__item p { margin-top: 6px; font-size: var(--fs-small); line-height: 1.55; color: var(--gray-700); }

/* ---- NavBar（只留字标） ---- */
.c-nav { position: fixed; top: 0; left: 0; right: 0; z-index: 50; height: 56px; background: rgba(255,255,255,.78); -webkit-backdrop-filter: saturate(180%) blur(20px); backdrop-filter: saturate(180%) blur(20px); border-bottom: 1px solid rgba(0,0,0,.06); transition: box-shadow .25s ease; }
.c-nav.is-scrolled { box-shadow: 0 8px 24px rgba(0,0,0,.05); }
.c-nav__inner { height: 56px; display: flex; align-items: center; }
.c-nav__brand { font-size: 22px; font-weight: var(--fw-bold); letter-spacing: .04em; color: var(--gray-900); }
.page-app { padding-top: 56px; }

/* ---- 幻灯：每个 App 一屏 ---- */
.page-deck { height: 100dvh; overflow: hidden; }
.deck { position: fixed; inset: 56px 0 0 0; overflow: hidden; background: #000; }
.slide { position: absolute; inset: 0; visibility: hidden; color: var(--accent-deep); }
.slide[data-theme="dark"] { color: #f5f5f7; }
.slide.is-active, .slide.is-leaving { visibility: visible; }
.slide__bg { position: absolute; inset: 0; z-index: 1; background: var(--accent-bg); }
.slide__bg img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.slide__mask { position: absolute; inset: 0; z-index: 2; background: linear-gradient(90deg, var(--accent-bg) 0%, color-mix(in srgb, var(--accent-bg) 94%, transparent) 34%, color-mix(in srgb, var(--accent-bg) 55%, transparent) 60%, color-mix(in srgb, var(--accent-bg) 12%, transparent) 100%); clip-path: inset(0 0 0 0); }
.js .slide.is-entering .slide__mask { animation: wipe .8s cubic-bezier(.2,.65,.3,1) both; }
@keyframes wipe { from { clip-path: inset(0 0 0 100%); } to { clip-path: inset(0 0 0 0); } } /* 遮罩从右向左扫入 */
.slide.is-leaving .slide__bg, .slide.is-leaving .slide__mask { visibility: hidden; }
.slide__inner { position: relative; z-index: 3; height: 100%; display: grid; grid-template-columns: minmax(300px, 470px) 1fr; align-items: center; gap: 48px; padding-right: 120px; }
.slide__copy, .slide__media { position: relative; z-index: 3; }
.js .slide__copy, .js .slide__media { opacity: 0; transform: translateY(14px); transition: opacity .8s ease, transform .8s ease; }
.js .slide.is-active .slide__copy, .js .slide.is-active .slide__media { opacity: 1; transform: none; transition-delay: 0s; }
.js .slide.is-leaving .slide__copy, .js .slide.is-leaving .slide__media { opacity: 0; transform: none; z-index: 4; transition: opacity .8s ease; transition-delay: 0s; }
.slide__icon { width: 88px; height: 88px; border-radius: var(--r-icon); box-shadow: 0 14px 32px rgba(0,0,0,.18); }
.slide__name { margin-top: 26px; font-size: 30px; font-weight: var(--fw-bold); letter-spacing: -0.01em; display: flex; align-items: baseline; flex-wrap: wrap; gap: 6px 14px; }
.slide__sub { font-size: var(--fs-body); font-weight: var(--fw-regular); opacity: .72; }
.slide__title { margin-top: 18px; font-size: clamp(30px, 3vw, 44px); line-height: 1.18; font-weight: var(--fw-bold); letter-spacing: -0.015em; }
.slide__desc { margin-top: 18px; font-size: var(--fs-body); line-height: 1.8; opacity: .85; max-width: 30em; }
.slide__meta { margin-top: 16px; font-size: var(--fs-caption); letter-spacing: .02em; opacity: .62; }
.slide__actions { margin-top: 28px; display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.slide .c-btn--primary { background: var(--accent-ink); color: var(--accent-bg); }
.slide[data-slug="amu"] .c-btn--primary { color: #000; }
.slide .c-btn--link { color: inherit; opacity: .85; }
.slide[data-theme="dark"] .c-btn--link { color: var(--accent-ink); }
.slide__media { display: flex; justify-content: center; align-items: center; }
.slide__phones { display: flex; align-items: flex-end; }
.slide__phones .phone { width: 270px; }
.slide__phones .phone--a { transform: translateX(30px) rotate(-5deg); z-index: 1; }
.slide__phones .phone--b { transform: translateX(-30px) translateY(40px) rotate(4deg); }
.slide__iconstage { display: flex; flex-direction: column; align-items: center; gap: 28px; }
.slide__bigicon { width: 220px; border-radius: var(--r-icon); overflow: hidden; box-shadow: 0 30px 60px rgba(19,39,66,.28); }
.slide__bigicon img { aspect-ratio: 1; object-fit: cover; }
.slide__chips { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; max-width: 440px; }
.slide__chips li { display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; border-radius: var(--r-pill); background: rgba(255,255,255,.6); font-size: var(--fs-small); font-weight: var(--fw-semibold); color: var(--accent-deep); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); }
.deck__switcher { position: absolute; right: 40px; top: 50%; transform: translateY(-50%); z-index: 6; }
.deck__switcher ul { display: flex; flex-direction: column; align-items: center; gap: 22px; }
.deck__dot { display: block; width: 40px; height: 40px; border-radius: 11px; overflow: hidden; opacity: .78; box-shadow: 0 6px 16px rgba(0,0,0,.2); transition: width .8s cubic-bezier(.2,.65,.3,1), height .8s cubic-bezier(.2,.65,.3,1), border-radius .8s, opacity .8s, box-shadow .8s; }
.deck__dot img { width: 100%; height: 100%; object-fit: cover; }
.deck__dot:hover { opacity: 1; }
.deck__dot.is-active { width: 58px; height: 58px; border-radius: 16px; opacity: 1; box-shadow: 0 12px 28px rgba(0,0,0,.3), 0 0 0 3px rgba(255,255,255,.95); }
.deck__dot:focus-visible { outline: 2px solid #fff; outline-offset: 4px; }
.deck__hint { position: absolute; left: 50%; bottom: 22px; transform: translateX(-50%); z-index: 6; display: inline-flex; align-items: center; gap: 6px; font-size: var(--fs-caption); letter-spacing: .08em; color: #fff; background: rgba(0,0,0,.28); padding: 6px 12px 6px 14px; border-radius: var(--r-pill); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); transition: opacity .8s; }
.deck__hint .ic-down { transform: rotate(90deg); animation: nudge 1.6s ease-in-out infinite; }
@keyframes nudge { 0%, 100% { translate: 0 0; } 50% { translate: 0 3px; } }
.deck.is-used .deck__hint { opacity: 0; pointer-events: none; }
@media (prefers-reduced-motion: reduce) {
  .js .slide.is-entering .slide__mask { animation: none; }
  .js .slide__copy, .js .slide__media { transition: none; transform: none; }
  .deck__hint .ic-down { animation: none; }
}

/* ---- 设备框 ---- */
.phone { width: 250px; aspect-ratio: 1320 / 2868; border-radius: 36px; overflow: hidden; background: #0b0b0d; border: 1px solid rgba(0,0,0,.14); box-shadow: 0 30px 70px rgba(0,0,0,.22), inset 0 0 0 1px rgba(255,255,255,.08); flex: none; }
.phone img { width: 100%; height: 100%; object-fit: cover; }

/* ---- Hero · 详情页 ---- */
.c-hero--app { position: relative; isolation: isolate; overflow: hidden; min-height: 760px; display: flex; align-items: center; color: var(--accent-deep); background: var(--accent-bg); }
.c-hero--app[data-theme="dark"] { color: #f5f5f7; }
.c-hero__bg { position: absolute; inset: -12% 0 0 0; z-index: -1; will-change: transform; }
.c-hero__bg img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.c-hero__bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, var(--accent-bg) 0%, color-mix(in srgb, var(--accent-bg) 90%, transparent) 36%, color-mix(in srgb, var(--accent-bg) 20%, transparent) 68%, transparent 100%); }
.c-hero--app .c-hero__inner { display: grid; grid-template-columns: 1.1fr .9fr; align-items: center; gap: 48px; padding: 88px 0 72px; }
.c-hero__copy { max-width: 600px; }
.c-hero--app .eyebrow { color: inherit; opacity: .72; }
.c-hero--app .c-pill { background: rgba(0,0,0,.08); opacity: 1; }
.c-hero--app[data-theme="dark"] .c-pill { background: rgba(255,255,255,.14); }
.c-hero--app .c-hero__title { margin-top: 18px; font-family: var(--accent-font); }
.page-app--wutongli .c-hero__title { font-weight: 600; letter-spacing: 0; line-height: 1.18; font-size: clamp(42px, 5vw, 72px); }
.c-hero--app .c-hero__lead { margin-top: 22px; font-size: clamp(17px, 1.5vw, 21px); line-height: 1.5; opacity: .85; max-width: 34em; }
.c-hero__actions { margin-top: 32px; display: flex; gap: 14px; flex-wrap: wrap; }
.c-hero--app .c-btn--primary { background: var(--accent-ink); color: var(--accent-bg); }
.page-app--amu .c-hero--app .c-btn--primary { color: #000; }
.c-hero--app .c-hero__note { margin-top: 20px; font-size: var(--fs-small); opacity: .7; }
.c-hero__media { justify-self: center; position: relative; }
.c-hero__media figcaption { margin-top: 14px; text-align: center; font-size: var(--fs-caption); letter-spacing: .08em; opacity: .7; }
.c-hero__media--portrait img { width: 340px; aspect-ratio: 4 / 5.4; object-fit: cover; object-position: center 18%; border-radius: 170px 170px 28px 28px; box-shadow: 0 40px 80px rgba(40,65,76,.35); }
.c-hero__media--character img { width: 440px; filter: drop-shadow(0 30px 50px rgba(200,255,46,.22)) drop-shadow(0 2px 10px rgba(0,0,0,.6)); animation: float 7s ease-in-out infinite; }
.c-hero__media--shot .phone { width: 300px; border-radius: 42px; }
.c-hero__media--icon img { width: 240px; border-radius: var(--r-icon); box-shadow: 0 40px 80px rgba(19,39,66,.3); animation: float 7s ease-in-out infinite; }

/* ---- 概览三栏 ---- */
.c-overview { padding: 88px 0 40px; }
.c-overview__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.c-overview__icon { width: 56px; height: 56px; border-radius: 50%; display: grid; place-items: center; background: var(--accent-bg); color: var(--accent-ink); }
.page-app--amu .c-overview__icon { background: #000; color: var(--accent-ink); }
.c-overview__icon .ic { width: 26px; height: 26px; stroke-width: 1.75; }
.c-overview__item h3 { margin-top: 18px; font-size: var(--fs-lead); font-weight: var(--fw-semibold); letter-spacing: -0.01em; }
.c-overview__item p { margin-top: 8px; font-size: var(--fs-small); line-height: 1.55; color: var(--color-text-muted); }

/* ---- FeatureSection ---- */
.c-feature { padding: 112px 0; }
.c-feature--tint { background: var(--color-bg-tint); }
.c-feature--dark { background: #000; color: #f5f5f7; }
.c-feature--dark .eyebrow { color: var(--accent-ink, #c8ff2e); }
.c-feature--dark p:not(.eyebrow) { color: rgba(245,245,247,.72); }
.c-feature__inner { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 56px; }
.c-feature--media-left .c-feature__copy { order: 2; }
.c-feature--media-left .c-feature__media { order: 1; }
.c-feature__copy { max-width: 480px; }
.c-feature__copy .t-h2 { margin-top: 14px; }
.page-app--wutongli .c-feature__copy .t-h2 { font-family: var(--font-serif); font-weight: 600; letter-spacing: 0; line-height: 1.22; }
.c-feature__copy > p:not(.eyebrow) { margin-top: 18px; color: var(--color-text-muted); font-size: var(--fs-body); line-height: 1.55; }
.c-feature__copy--center { max-width: 640px; margin-inline: auto; text-align: center; }
.c-feature__copy--center .eyebrow { justify-content: center; }
.c-feature__media { display: flex; justify-content: center; }
.c-feature__phones { position: relative; display: flex; align-items: flex-end; }
.c-feature__phones--2 .phone--a { transform: translateX(26px) rotate(-3deg); z-index: 1; }
.c-feature__phones--2 .phone--b { transform: translateX(-26px) translateY(30px) rotate(3deg); }
.c-feature__phones--1 .phone { width: 280px; }
.c-feature__art { position: absolute; width: 200px; right: -70px; bottom: -30px; z-index: 2; filter: drop-shadow(0 20px 30px rgba(0,0,0,.25)); animation: float 6s ease-in-out infinite; }
.c-feature--media-left .c-feature__art { right: auto; left: -70px; }
.c-glyphs { position: relative; width: 320px; height: 300px; }
.c-glyph { position: absolute; width: 112px; height: 112px; border-radius: 50%; display: grid; place-items: center; background: var(--accent-bg); color: var(--accent-ink); box-shadow: 0 20px 40px rgba(19,39,66,.14); animation: float 7s ease-in-out infinite; animation-delay: calc(var(--g) * -2.2s); }
.c-glyph .ic { width: 44px; height: 44px; stroke-width: 1.5; }
.c-glyph:nth-child(1) { left: 0; top: 20px; }
.c-glyph:nth-child(2) { left: 150px; top: 0; width: 150px; height: 150px; background: var(--accent-ink); color: var(--accent-bg); }
.c-glyph:nth-child(2) .ic { width: 60px; height: 60px; }
.c-glyph:nth-child(3) { left: 70px; top: 170px; }
.c-feature--media-left .c-glyphs { transform: scaleX(-1); }
.c-feature--media-left .c-glyph .ic { transform: scaleX(-1); }

/* ---- 章节横条（梧桐里） ---- */
.c-chapters { padding: 104px 0; background: var(--accent-bg); color: var(--accent-deep); overflow: hidden; }
.c-chapters__head { max-width: 560px; }
.c-chapters__head .eyebrow { color: inherit; opacity: .7; }
.c-chapters__head .t-h2 { margin-top: 14px; font-family: var(--font-serif); font-weight: 600; letter-spacing: 0; line-height: 1.22; }
.c-chapters__head .lead { margin-top: 14px; color: inherit; opacity: .78; }
.c-chapters__track { margin-top: 44px; display: grid; grid-template-columns: repeat(5, minmax(220px, 1fr)); gap: 16px; }
.c-chapters__item { position: relative; border-radius: var(--r-lg); overflow: hidden; background: #28414c; aspect-ratio: 4 / 5; color: #fff; }
.c-chapters__item img { width: 100%; height: 100%; object-fit: cover; opacity: .92; transition: transform .6s cubic-bezier(.2,.65,.3,1); }
.c-chapters__item:hover img { transform: scale(1.04); }
.c-chapters__text { position: absolute; inset: auto 0 0 0; padding: 18px 16px 16px; background: linear-gradient(180deg, transparent, rgba(20,34,44,.86)); }
.c-chapters__n { font-family: Georgia, serif; font-size: var(--fs-caption); letter-spacing: .1em; opacity: .8; }
.c-chapters__text h3 { font-family: var(--font-serif); font-size: var(--fs-lead); font-weight: 600; margin-top: 2px; }
.c-chapters__text p { font-size: var(--fs-caption); opacity: .85; margin-top: 4px; }

/* ---- 卡片行（AMU） ---- */
.c-cardrow { margin-top: 48px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.c-cardrow__card { background: #141416; border-radius: var(--r-xl); padding: 32px 28px; border: 1px solid rgba(255,255,255,.06); }
.c-cardrow__icon { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 14px; background: var(--accent-ink); color: #000; }
.c-cardrow__icon .ic { width: 24px; height: 24px; }
.c-cardrow__card h3 { margin-top: 20px; font-size: var(--fs-lead); font-weight: var(--fw-semibold); }
.c-cardrow__card p { margin-top: 8px; font-size: var(--fs-small); line-height: 1.55; color: rgba(245,245,247,.7); }

/* ---- 截图画廊 ---- */
.c-gallery { padding: 104px 0 112px; overflow: hidden; }
.c-gallery__head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; }
.c-gallery__head .t-h2 { margin-top: 12px; }
.c-gallery__nav { display: flex; gap: 10px; }
.c-gallery__btn { width: 40px; height: 40px; border-radius: 50%; background: var(--color-bg-tint); display: grid; place-items: center; transition: background .15s, opacity .15s; }
.c-gallery__btn:hover { background: var(--gray-200); }
.c-gallery__btn:disabled { opacity: .3; cursor: default; }
.c-gallery__btn .ic { width: 20px; height: 20px; }
.c-gallery__track { margin-top: 40px; display: flex; gap: 24px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; padding: 20px max(22px, calc((100vw - 1180px) / 2)) 40px; scroll-padding-inline: max(22px, calc((100vw - 1180px) / 2)); }
.c-gallery__track::-webkit-scrollbar { display: none; }
.c-gallery__item { scroll-snap-align: start; flex: none; width: 300px; }
.c-gallery__item .phone { width: 300px; border-radius: 42px; }
.c-gallery__cap { margin-top: 16px; text-align: center; font-size: var(--fs-small); color: var(--color-text-muted); }
.c-gallery--empty .c-gallery__empty { margin-top: 36px; border: 1.5px dashed var(--color-border); border-radius: var(--r-xl); padding: 56px 24px; text-align: center; display: flex; flex-direction: column; align-items: center; gap: 16px; color: var(--color-text-muted); }
.c-gallery--empty .c-gallery__empty .ic { width: 40px; height: 40px; stroke-width: 1.25; }

/* ---- 公测信息 / 下载区 ---- */
.c-beta { padding: 104px 0 112px; background: var(--color-bg-tint); }
.c-beta .t-h2 { margin-top: 12px; }
.c-beta__grid { margin-top: 44px; display: grid; grid-template-columns: 420px 1fr; gap: 24px; align-items: start; }
.c-beta__cta { position: sticky; top: 124px; background: #fff; border-radius: var(--r-xl); padding: 40px 32px 28px; display: flex; flex-direction: column; align-items: center; text-align: center; box-shadow: var(--sh-card); }
.c-beta__icon { width: 96px; height: 96px; border-radius: var(--r-icon); box-shadow: 0 12px 28px rgba(0,0,0,.14); }
.c-beta__name { margin-top: 18px; font-size: var(--fs-h5); font-weight: var(--fw-bold); letter-spacing: -0.01em; }
.c-beta__name span { font-size: var(--fs-small); font-weight: var(--fw-regular); color: var(--color-text-muted); margin-left: 6px; }
.c-beta__cta .c-btn--lg { margin-top: 20px; width: 100%; }
.c-beta__req { margin-top: 12px; font-size: var(--fs-caption); color: var(--color-text-subtle); }
.c-qr { margin-top: 24px; display: flex; flex-direction: column; align-items: center; gap: 8px; }
.c-qr__svg { width: 132px; height: 132px; }
.c-qr p { font-size: var(--fs-caption); color: var(--color-text-subtle); }
.c-beta__cta .c-acc { margin-top: 24px; width: 100%; text-align: left; border-top: 1px solid var(--color-border); padding-top: 12px; }
.c-acc summary { cursor: pointer; list-style: none; display: flex; align-items: center; justify-content: space-between; font-size: var(--fs-body); font-weight: var(--fw-semibold); padding: 8px 0; }
.c-acc summary::-webkit-details-marker { display: none; }
.c-acc summary::after { content: "+"; font-size: 22px; line-height: 1; color: var(--color-text-subtle); transition: transform .2s; }
.c-acc[open] summary::after { transform: rotate(45deg); }
.c-beta__info { background: #fff; border-radius: var(--r-xl); padding: 36px 36px 32px; }
.c-beta__h3 { font-size: var(--fs-lead); font-weight: var(--fw-semibold); }
.c-beta__h3 + .c-beta__h3, .c-testing + .c-beta__h3, .c-beta__hint + .c-beta__h3 { margin-top: 36px; }
.c-testing { margin-top: 14px; counter-reset: t; display: flex; flex-direction: column; gap: 10px; }
.c-testing li { position: relative; padding-left: 34px; font-size: var(--fs-small); line-height: 1.55; color: var(--gray-700); counter-increment: t; }
.c-testing li::before { content: counter(t); position: absolute; left: 0; top: 1px; width: 22px; height: 22px; border-radius: 50%; background: var(--accent-bg); color: var(--accent-ink); display: grid; place-items: center; font-size: var(--fs-caption); font-weight: var(--fw-bold); }
.page-app--amu .c-testing li::before { background: #000; }
.c-beta__hint { margin-top: 16px; display: flex; gap: 8px; align-items: flex-start; font-size: var(--fs-caption); line-height: 1.5; color: var(--color-text-muted); background: var(--color-bg-tint); border-radius: var(--r-md); padding: 12px 14px; }
.c-beta__hint .ic { margin-top: 1px; }
.c-info { margin-top: 14px; display: grid; grid-template-columns: 1fr 1fr; column-gap: 24px; }
.c-info > div { display: grid; grid-template-columns: 88px 1fr; gap: 12px; padding: 10px 0; border-top: 1px solid var(--color-border); font-size: var(--fs-small); }
.c-info dt { color: var(--color-text-muted); }
.c-info dd { color: var(--gray-900); overflow-wrap: anywhere; }
.c-info dd a { display: inline-flex; align-items: center; gap: 4px; }
.c-info dd a .ic { width: 12px; height: 12px; opacity: .7; }
.c-info a { color: var(--color-link); }
.c-notes { margin-top: 20px; display: flex; flex-direction: column; gap: 6px; font-size: var(--fs-caption); color: var(--color-text-subtle); line-height: 1.5; }
.c-notes li { padding-left: 14px; position: relative; }
.c-notes li::before { content: "·"; position: absolute; left: 2px; }

/* ---- 其他 App ---- */
.c-others { padding: 96px 0 112px; }
.c-others .t-h2 { margin-top: 12px; }
.c-others__grid { margin-top: 32px; display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.c-others__card { display: flex; align-items: center; gap: 18px; background: var(--color-bg-tint); border-radius: var(--r-xl); padding: 22px 24px; transition: transform .3s cubic-bezier(.2,.65,.3,1), box-shadow .3s; }
.c-others__card:hover { transform: translateY(-3px); box-shadow: var(--sh-card); }
.c-others__card img { width: 64px; height: 64px; border-radius: 16px; flex: none; }
.c-others__card span { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.c-others__card strong { font-size: var(--fs-lead); font-weight: var(--fw-semibold); }
.c-others__card small { font-size: var(--fs-small); color: var(--color-text-muted); }
.c-others__card .ic { color: var(--color-text-subtle); }

/* ===== 响应式 ===== */
@media (max-width: 1068px) {
  .c-overview__grid { gap: 24px; }
  .c-chapters__track { grid-template-columns: repeat(5, 200px); overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 8px; scrollbar-width: none; }
  .c-chapters__item { scroll-snap-align: start; }
  .c-beta__grid { grid-template-columns: 1fr; }
  .c-beta__cta { position: static; }
  .c-hero__media--portrait img { width: 300px; }
  .c-hero__media--character img { width: 360px; }
}
@media (max-width: 734px) {
  .wrap { width: min(100% - 32px, 1180px); }
  .br-h5 { display: inline; }
  [id] { scroll-margin-top: 96px; }
  .c-subnav__inner { height: 48px; gap: 12px; }
  .c-subnav__links { display: none; }
  .c-subnav__name { font-size: 17px; }
  .t-display { font-size: clamp(38px, 11vw, 48px); }
  .t-h2 { font-size: clamp(28px, 8vw, 34px); }
  .phone { width: 180px; border-radius: 28px; }
  .c-hero--app { min-height: 0; }
  .c-hero--app .c-hero__inner { grid-template-columns: 1fr; gap: 36px; padding: 48px 0 56px; }
  .c-hero__bg { inset: 0; }
  .c-hero__bg::after { background: linear-gradient(180deg, var(--accent-bg) 0%, color-mix(in srgb, var(--accent-bg) 88%, transparent) 55%, color-mix(in srgb, var(--accent-bg) 30%, transparent) 100%); }
  .c-hero--app .c-hero__title { font-size: clamp(36px, 10.5vw, 44px); }
  .page-app--wutongli .c-hero__title { font-size: clamp(34px, 10vw, 42px); }
  .c-hero__actions .c-btn--lg { min-height: 50px; padding: 12px 24px; font-size: var(--fs-body); }
  .c-hero__media--portrait img { width: 240px; }
  .c-hero__media--character img { width: 260px; }
  .c-hero__media--icon img { width: 170px; }
  .c-hero__media--shot .phone { width: 210px; border-radius: 30px; }
  .c-overview { padding: 56px 0 24px; }
  .c-overview__grid { grid-template-columns: 1fr; gap: 28px; }
  .c-feature { padding: 64px 0; }
  .c-feature__inner { grid-template-columns: 1fr; gap: 36px; }
  .c-feature--media-left .c-feature__copy { order: 1; }
  .c-feature--media-left .c-feature__media { order: 2; }
  .c-feature__phones--1 .phone { width: 200px; }
  .c-feature__phones--2 .phone--a { transform: translateX(16px) rotate(-3deg); }
  .c-feature__phones--2 .phone--b { transform: translateX(-16px) translateY(24px) rotate(3deg); }
  .c-feature__art { width: 120px; right: -30px; bottom: -20px; }
  .c-feature--media-left .c-feature__art { left: -30px; }
  .c-glyphs { width: 250px; height: 240px; }
  .c-glyph { width: 86px; height: 86px; }
  .c-glyph .ic { width: 34px; height: 34px; }
  .c-glyph:nth-child(2) { left: 120px; width: 118px; height: 118px; }
  .c-glyph:nth-child(2) .ic { width: 46px; height: 46px; }
  .c-glyph:nth-child(3) { left: 50px; top: 140px; }
  .c-chapters { padding: 64px 0; }
  .c-chapters__track { grid-template-columns: repeat(5, 170px); gap: 12px; margin-top: 28px; }
  .c-cardrow { grid-template-columns: 1fr; gap: 14px; margin-top: 32px; }
  .c-gallery { padding: 64px 0 72px; }
  .c-gallery__head { flex-direction: column; align-items: flex-start; }
  .c-gallery__track { margin-top: 24px; gap: 16px; padding: 12px 16px 28px; scroll-padding-inline: 16px; }
  .c-gallery__item, .c-gallery__item .phone { width: 220px; border-radius: 32px; }
  .c-beta { padding: 64px 0 72px; }
  .c-beta__grid { margin-top: 28px; gap: 16px; }
  .c-beta__cta { padding: 32px 22px 22px; }
  .c-beta__info { padding: 26px 20px 24px; }
  .c-info { grid-template-columns: 1fr; }
  .c-others { padding: 64px 0 72px; }
  .c-others__grid { grid-template-columns: 1fr; gap: 12px; }
}
@media (hover: none) {
}

@media (max-width: 1068px) {
  .slide__inner { grid-template-columns: minmax(280px, 400px) 1fr; gap: 24px; padding-right: 96px; }
  .slide__phones .phone { width: 220px; }
  .slide__bigicon { width: 180px; }
}
@media (max-width: 734px) {
  .deck { inset: 56px 0 0 0; }
  .slide__inner { grid-template-columns: 1fr; grid-template-rows: auto 1fr; gap: 12px; padding: 20px 56px 16px 0; align-items: start; }
  .slide__icon { width: 56px; height: 56px; }
  .slide__name { margin-top: 14px; font-size: 24px; }
  .slide__title { margin-top: 10px; font-size: clamp(24px, 7vw, 30px); }
  .slide__desc { margin-top: 10px; font-size: var(--fs-small); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
  .slide__meta { margin-top: 10px; }
  .slide__actions { margin-top: 14px; gap: 14px; }
  .slide__actions .c-btn--primary { min-height: 40px; padding: 8px 18px; font-size: var(--fs-small); }
  .slide__media { align-items: flex-end; justify-content: center; overflow: hidden; }
  .slide__phones .phone { width: 150px; border-radius: 24px; }
  .slide__phones .phone--a { transform: translateX(16px) rotate(-5deg); }
  .slide__phones .phone--b { transform: translateX(-16px) translateY(26px) rotate(4deg); }
  .slide__bigicon { width: 120px; }
  .slide__chips { gap: 6px; }
  .slide__chips li { padding: 6px 10px; font-size: var(--fs-caption); }
  .deck__switcher { right: 12px; }
  .deck__switcher ul { gap: 14px; }
  .deck__dot { width: 32px; height: 32px; border-radius: 9px; }
  .deck__dot.is-active { width: 44px; height: 44px; border-radius: 12px; }
  .deck__hint { bottom: 12px; }
  .slide__mask { background: linear-gradient(180deg, var(--accent-bg) 0%, color-mix(in srgb, var(--accent-bg) 92%, transparent) 52%, color-mix(in srgb, var(--accent-bg) 30%, transparent) 100%); }
}