/* PVQuick 官网新首页 · 方向 A「晴空」
   浅色底、深蓝字；强调色只用标志里那条从蓝到琥珀的线；只有「精度」「小伏」两屏和结尾用深色。没有第三方样式库。 */

@font-face { font-family: "Inter"; font-weight: 400; font-display: swap; src: url("fonts/inter-latin-400-normal.woff2") format("woff2"); }
@font-face { font-family: "Inter"; font-weight: 500; font-display: swap; src: url("fonts/inter-latin-500-normal.woff2") format("woff2"); }
@font-face { font-family: "Inter"; font-weight: 600; font-display: swap; src: url("fonts/inter-latin-600-normal.woff2") format("woff2"); }
@font-face { font-family: "Inter"; font-weight: 700; font-display: swap; src: url("fonts/inter-latin-700-normal.woff2") format("woff2"); }

:root {
  --bg: #F4F6F9;
  --bg-rgb: 244, 246, 249;
  --ink: #101936;
  --ink-2: #48526F;
  --ink-3: #7B849C;
  --line: #DDE2EC;
  --navy: #17306F;
  --navy-deep: #0B1230;
  --blue: #38BDF8;
  --amber: #FBBF24;
  --amber-ink: #A85B05;
  --brand-line: linear-gradient(90deg, var(--blue), var(--amber));
  --sans: "Inter", "PingFang SC", "HarmonyOS Sans SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --gutter: max(24px, 6vw);
  --page: 1280px;
  --px: max(var(--gutter), calc((100vw - var(--page)) / 2));   /* 各屏内容左右留白：窄屏跟首屏对齐，宽屏内容不超过 1280 */
  --ease: cubic-bezier(.2, .7, .2, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 96px; scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: var(--sans); font-size: 16px; line-height: 1.6;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  overflow-x: clip;
}
body::before { /* 软件和社区加载时那条线 */
  content: ""; position: fixed; inset: 0 0 auto 0; height: 2px; background: var(--brand-line); z-index: 60;
}
img, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
b { font-weight: 600; }
h1, h2, h3, h4, p { overflow-wrap: break-word; }
.alias { position: absolute; top: 0; left: 0; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px; height: 52px; padding: 0 28px;
  border-radius: 999px; font: 600 16px var(--sans); letter-spacing: .01em; white-space: nowrap; cursor: pointer;
  border: 1px solid transparent; transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .2s, border-color .2s;
}
.btn--primary { background: var(--navy); color: #fff; box-shadow: 0 10px 24px -10px rgba(23, 48, 111, .55); }
.btn--primary:hover { transform: translateY(-1px); background: #1B3A86; box-shadow: 0 14px 30px -10px rgba(23, 48, 111, .6); }
.btn--ghost { background: rgba(255, 255, 255, .7); color: var(--navy); border-color: rgba(23, 48, 111, .22); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
.btn--ghost:hover { background: #fff; border-color: rgba(23, 48, 111, .45); }
.btn--light { background: #fff; color: var(--navy-deep); }
.btn--light:hover { transform: translateY(-1px); box-shadow: 0 14px 30px -12px rgba(0, 0, 0, .5); }
.btn--line { color: #fff; border-color: rgba(255, 255, 255, .38); }
.btn--line:hover { border-color: #fff; background: rgba(255, 255, 255, .08); }
.btn--sm { height: 40px; padding: 0 20px; font-size: 14.5px; box-shadow: none; }
.btn:focus-visible, a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }

/* ---------- 展会通栏（最上面一条，跟着页面滚走；展后连同 body 的 has-bar 一起删） ---------- */
body { position: relative; }
.topbar {
  position: absolute; z-index: 49; top: 0; left: 0; right: 0; height: 44px; padding: 0 16px;
  display: flex; align-items: center; justify-content: center; gap: 12px; white-space: nowrap;
  background: linear-gradient(90deg, #0B1230 0%, #17306F 50%, #0B1230 100%); color: rgba(255, 255, 255, .88); font-size: 14px;
}
.topbar b { color: #FCD34D; font-weight: 600; letter-spacing: .08em; }
.topbar__dot { width: 8px; height: 8px; border-radius: 50%; background: #FCD34D; animation: pulse 2.2s infinite; }
.topbar__short { display: none; }
.topbar:hover { color: #fff; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(252, 211, 77, .55); } 70% { box-shadow: 0 0 0 9px rgba(252, 211, 77, 0); } 100% { box-shadow: 0 0 0 0 rgba(252, 211, 77, 0); } }
.has-bar .nav { top: calc(16px + var(--bar, 44px)); }

/* ---------- 顶栏 ---------- */
.nav {
  position: fixed; z-index: 50; top: 16px; left: 50%; transform: translateX(-50%);
  width: min(1240px, calc(100% - 32px)); height: 60px; padding: 0 10px 0 24px;
  display: flex; align-items: center; gap: 10px;
  background: rgba(255, 255, 255, .72); border: 1px solid rgba(16, 25, 54, .06); border-radius: 999px;
  backdrop-filter: saturate(1.5) blur(18px); -webkit-backdrop-filter: saturate(1.5) blur(18px);
  transition: background .3s, box-shadow .3s;
}
.nav.is-scrolled { background: rgba(255, 255, 255, .9); box-shadow: 0 10px 30px -18px rgba(16, 25, 54, .35); }
.nav__logo { margin-right: auto; display: flex; align-items: center; flex: none; }
.nav__logo img { height: 30px; width: auto; max-width: none; }
.nav__links { display: flex; gap: 2px; margin-right: 8px; }
.nav__links a { display: inline-flex; align-items: center; gap: 5px; padding: 8px 13px; border-radius: 999px; font-size: 15px; color: var(--ink); white-space: nowrap; transition: background .2s; }
.nav__links a:hover { background: rgba(16, 25, 54, .06); }
.nav__ext svg { color: var(--ink-3); }
.nav__lang {
  height: 36px; padding: 0 12px; border-radius: 999px; border: 1px solid var(--line); background: transparent;
  font: 500 13.5px var(--sans); color: var(--ink-2); cursor: pointer; white-space: nowrap;
}
.nav__lang:hover { border-color: var(--ink-3); color: var(--ink); }
.nav__menu { display: none; width: 40px; height: 40px; border: 0; border-radius: 50%; background: transparent; cursor: pointer; position: relative; }
.nav__menu i { position: absolute; left: 11px; right: 11px; height: 1.8px; border-radius: 2px; background: var(--ink); transition: transform .25s var(--ease); }
.nav__menu i:first-child { top: 15px; }
.nav__menu i:last-child { top: 23px; }
.nav.is-open .nav__menu i:first-child { transform: translateY(4px) rotate(45deg); }
.nav.is-open .nav__menu i:last-child { transform: translateY(-4px) rotate(-45deg); }

/* ---------- 首屏舞台 ---------- */
/* 首屏留在原地（sticky），后面的内容像一张圆角的纸盖上来；被盖的时候首屏略微缩小、变暗（--c：0～1，脚本写）。
   全页没有「停住再走」的地方，可以一口气拉到底。 */
.stage { position: sticky; top: 0; z-index: 0; height: 100svh; min-height: 620px; }
.stage::after { content: ""; position: absolute; inset: 0; z-index: 9; pointer-events: none; background: var(--navy-deep); opacity: calc(var(--c, 0) * .45); }
.after { position: relative; z-index: 2; background: var(--bg); border-radius: clamp(20px, 2.4vw, 32px) clamp(20px, 2.4vw, 32px) 0 0; box-shadow: 0 -30px 70px -30px rgba(11, 18, 48, .45); padding-top: clamp(8px, 1.4vw, 20px); }
.foot { position: relative; z-index: 2; }
.stage__pin {
  position: relative; height: 100%; overflow: hidden; transform-origin: 50% 30%; transform: scale(calc(1 - var(--c, 0) * .045));
  background:
    radial-gradient(60vw 50vh at 88% 12%, rgba(56, 189, 248, .10), transparent 70%),
    radial-gradient(50vw 50vh at 96% 96%, rgba(251, 191, 36, .12), transparent 70%),
    var(--bg);
}
.stage__media { position: absolute; inset: 0; z-index: 1; transform-origin: 50% 50%; will-change: transform, clip-path; background: #E5E8ED; filter: brightness(1.06); }
.stage__media video { width: 100%; height: 100%; object-fit: cover; object-position: 86% 50%; }
/* 左边的淡出是一团弧形的光晕：以文字栏为中心，中间厚、上下薄，没有竖直的边。
   模糊只垫在几乎全白的那一圈底下（看得见电站的地方一律是清楚的原画面，不然像是分辨率低）。 */
.stage__blur {
  position: absolute; inset: 0; z-index: 2; pointer-events: none;
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  -webkit-mask-image: radial-gradient(ellipse 60% 92% at 12% 55%, #000 0%, #000 58%, transparent 80%); mask-image: radial-gradient(ellipse 60% 92% at 12% 55%, #000 0%, #000 58%, transparent 80%);
}
.stage__veil {
  position: absolute; inset: 0; z-index: 3; pointer-events: none;
  background:
    radial-gradient(ellipse 60% 92% at 12% 55%, rgba(var(--bg-rgb), 1) 0%, rgba(var(--bg-rgb), 1) 54%, rgba(var(--bg-rgb), .92) 66%, rgba(var(--bg-rgb), .55) 80%, rgba(var(--bg-rgb), .18) 92%, rgba(var(--bg-rgb), 0) 100%),
    linear-gradient(0deg, rgba(var(--bg-rgb), .9) 0%, rgba(var(--bg-rgb), 0) 20%),
    linear-gradient(180deg, rgba(var(--bg-rgb), .4) 0%, rgba(var(--bg-rgb), 0) 12%);
}

.hero { position: absolute; z-index: 4; left: var(--gutter); top: 50%; transform: translateY(-56%); max-width: 52vw; }
.eyebrow, .hero__eyebrow {
  display: flex; align-items: center; gap: 12px; margin: 0 0 22px;
  font-size: 14px; font-weight: 600; letter-spacing: .16em; color: var(--amber-ink);
}
.eyebrow::before, .hero__eyebrow::before { content: ""; width: 28px; height: 2px; border-radius: 2px; background: var(--brand-line); flex: none; }
.hero__title { margin: 0; width: max-content; max-width: 100%; font-weight: 600; font-size: clamp(32px, min(3.7vw, 7vh), 56px); line-height: 1.22; letter-spacing: .01em; }
.hero__sub { margin: 24px 0 0; max-width: min(var(--col, 26em), 29em); font-size: clamp(16px, 1.25vw, 19px); line-height: 1.75; color: var(--ink-2); }
.hero__cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
html[lang="en"] .eyebrow, html[lang="en"] .hero__eyebrow { letter-spacing: .12em; text-transform: uppercase; font-size: 12.5px; }
html[lang="en"] .hero__eyebrow { max-width: var(--col, 40em); align-items: flex-start; line-height: 1.6; }
html[lang="en"] .hero__eyebrow::before { margin-top: .75em; }
html[lang="en"] .hero__title { font-size: clamp(34px, min(4vw, 7.4vh), 60px); line-height: 1.08; letter-spacing: -.026em; }
html[lang="en"] .hero__sub { line-height: 1.65; }

/* 浮在三维画面上的三张数字卡 */
.cards { position: absolute; z-index: 4; right: var(--gutter); top: 50%; transform: translateY(-58%); width: 372px; height: 372px; }
.card {
  position: absolute; width: 236px; padding: 16px 18px 15px; border-radius: 16px;
  background: rgba(255, 255, 255, .8); border: 1px solid rgba(255, 255, 255, .95);
  backdrop-filter: blur(16px) saturate(1.3); -webkit-backdrop-filter: blur(16px) saturate(1.3);
  box-shadow: 0 18px 44px -18px rgba(16, 25, 54, .38), 0 1px 0 rgba(255, 255, 255, .8) inset;
  display: flex; flex-direction: column; gap: 4px;
  animation: rise .8s var(--ease) backwards;
}
.card--a { right: 0; top: 0; animation-delay: .25s; }
.card--b { right: 136px; top: 122px; animation-delay: .4s; }
.card--c { right: 0; top: 256px; animation-delay: .55s; }
.card__k { font-size: 12.5px; font-weight: 500; color: var(--ink-2); letter-spacing: .02em; }
.card__v { display: flex; align-items: baseline; gap: 6px; font-variant-numeric: tabular-nums; white-space: nowrap; }
.card__v b { font-size: 27px; line-height: 1.2; font-weight: 600; letter-spacing: -.02em; color: var(--ink); }
.card__v i { font-style: normal; font-size: 13px; font-weight: 500; color: var(--ink-2); }
.card__v em { font-style: normal; color: var(--ink-3); }
.card--b .card__v b { font-size: 21px; }
.card--b .card__v b:last-of-type { color: var(--amber-ink); }
.card__s { font-size: 12px; color: var(--ink-3); }
.cards__note { position: absolute; right: 0; top: 384px; margin: 0; max-width: 372px; padding: 7px 13px; border-radius: 12px; text-align: right; text-wrap: balance; font-size: 11.5px; line-height: 1.5; color: var(--ink-2); background: rgba(255, 255, 255, .8); border: 1px solid rgba(255, 255, 255, .95); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); animation: rise .8s var(--ease) .7s backwards; }

/* 首屏的小伏：官网和软件共用的那个三维星笼球（assets/js/xiaofu-3d.js），按住能拖着转；球没画出来之前是同一姿态的静态图 */
.xf { position: absolute; z-index: 4; left: var(--gutter); bottom: 126px; display: flex; align-items: center; gap: 16px; animation: rise .8s var(--ease) .75s backwards; }
.xf__stage {
  position: relative; flex: none; width: 96px; height: 96px; border-radius: 26px; overflow: hidden;
  background: radial-gradient(circle at 50% 47%, #1f3d70 0%, #10213d 42%, #08111f 78%, #060c17 100%);
  box-shadow: 0 20px 40px -20px rgba(8, 20, 40, .75), inset 0 0 0 1px rgba(160, 200, 255, .1);
}
.xf__art { position: absolute; top: -10%; left: -10%; width: 120%; height: 120%; max-width: none; z-index: 1; transition: opacity .4s ease; }
.xf__3d { position: absolute; inset: -10%; z-index: 2; opacity: 0; transition: opacity .4s ease; }
.xf.is-3d .xf__3d { opacity: 1; }
.xf.is-3d .xf__art { opacity: 0; }
.xf__name { margin: 0; display: flex; align-items: center; gap: 8px; font-size: 16px; font-weight: 600; color: var(--ink); }
.xf__name i, .pill { font-style: normal; font-size: 11px; font-weight: 600; line-height: 1; padding: 4px 7px; border-radius: 999px; color: var(--amber-ink); border: 1px solid rgba(168, 91, 5, .45); letter-spacing: .04em; white-space: nowrap; }
.xf__desc { margin: 4px 0 0; max-width: 19em; font-size: 13.5px; line-height: 1.6; color: var(--ink-2); }
.xf__hint { display: none; }
.xf.is-3d .xf__hint { display: inline; }

@keyframes rise { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

/* 太阳的光晕：位置由脚本按视频里太阳的位置摆；压在淡出上面、文字下面 */
.sunglow {
  position: absolute; z-index: 3; left: 0; top: 0; width: 680px; height: 680px; margin: -340px 0 0 -340px; border-radius: 50%; pointer-events: none; opacity: 0; will-change: transform, opacity;
  background: radial-gradient(circle, rgba(255, 208, 104, .52) 0%, rgba(253, 198, 76, .28) 14%, rgba(251, 191, 36, .13) 34%, rgba(251, 191, 36, .05) 54%, rgba(251, 191, 36, 0) 70%);
}
.sunglow i { position: absolute; left: 50%; top: 50%; width: 22px; height: 22px; margin: -11px 0 0 -11px; border-radius: 50%; background: radial-gradient(circle at 42% 40%, #FFE9A8, #F7B733 72%); box-shadow: 0 0 20px 7px rgba(247, 183, 51, .42); opacity: 0; }

/* 太阳时：跟着首屏视频走，告诉人看的是软件里「一天」的演示 */
.sunchip {
  position: absolute; z-index: 4; right: var(--gutter); bottom: 122px; display: flex; align-items: center; gap: 10px; height: 40px; padding: 0 16px 0 12px; border-radius: 999px;
  background: rgba(255, 255, 255, .8); border: 1px solid rgba(255, 255, 255, .95); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 14px 34px -18px rgba(16, 25, 54, .4); font-size: 13px; color: var(--ink-2); white-space: nowrap;
  animation: rise .8s var(--ease) .85s backwards;
}
.sunchip::before { content: ""; width: 14px; height: 14px; border-radius: 50%; background: radial-gradient(circle at 40% 40%, #FFE08A, #F5A524); box-shadow: 0 0 0 4px rgba(245, 165, 36, .18); flex: none; }
.sunchip b { font-size: 14.5px; font-weight: 600; color: var(--ink); font-variant-numeric: tabular-nums; }
.sunchip i { font-style: normal; padding-left: 10px; border-left: 1px solid var(--line); }

/* 底部四个数 */
.facts {
  position: absolute; z-index: 4; left: 0; right: 0; bottom: 0; margin: 0; padding: 0 var(--gutter); height: 96px; list-style: none;
  display: grid; grid-template-columns: repeat(4, 1fr); align-items: center;
  background: rgba(255, 255, 255, .7); border-top: 1px solid rgba(255, 255, 255, .9);
  backdrop-filter: blur(18px) saturate(1.3); -webkit-backdrop-filter: blur(18px) saturate(1.3);
}
.facts li { display: flex; align-items: baseline; gap: 10px; padding-left: 28px; border-left: 1px solid var(--line); }
.facts li:first-child { padding-left: 0; border-left: 0; }
.facts b { font-size: clamp(26px, 2.5vw, 36px); font-weight: 600; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.facts span { font-size: 14.5px; color: var(--ink-2); }

/* 软件窗口顶上那一条（功能那一屏的大窗口用） */
.win__bar { flex: none; height: 40px; display: flex; align-items: center; gap: 7px; padding: 0 14px; background: #F2F4F8; border-bottom: 1px solid #E1E6EF; }
.win__bar i { width: 10px; height: 10px; border-radius: 50%; background: #CBD2DF; }
.win__bar span { margin: 0 auto; transform: translateX(-24px); padding: 3px 44px; border-radius: 6px; background: #fff; border: 1px solid #E1E6EF; font-size: 12px; color: var(--ink-3); }

/* ---------- WCPEC-9 宣传：首屏正下方的一整块（展后删） ---------- */
.expo { padding: 0 clamp(8px, 1.4vw, 20px); }
.expo__in {
  position: relative; overflow: hidden; border-radius: clamp(18px, 2.2vw, 28px); padding: clamp(40px, 5.4vw, 76px) var(--gutter); color: #fff;
  display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: 20px clamp(32px, 6vw, 96px); align-items: center;
  background:
    radial-gradient(70% 150% at 100% 120%, rgba(251, 191, 36, .5) 0%, rgba(245, 130, 60, .24) 32%, transparent 62%),
    radial-gradient(50% 80% at 0% -10%, rgba(56, 189, 248, .26), transparent 62%),
    var(--navy-deep);
}
.expo__tag { grid-column: 1; margin: 0; display: inline-flex; align-items: center; gap: 10px; justify-self: start; padding: 7px 16px; border-radius: 999px; border: 1px solid rgba(252, 211, 77, .55); color: #FCD34D; font-size: 14px; font-weight: 600; letter-spacing: .1em; }
.expo h2 { grid-column: 1; margin: 0; font-size: clamp(30px, 3.6vw, 52px); font-weight: 600; line-height: 1.2; letter-spacing: .01em; text-wrap: balance; }
html[lang="en"] .expo h2 { letter-spacing: -.022em; line-height: 1.1; }
.expo__sub { grid-column: 1; margin: 0; font-size: clamp(16px, 1.25vw, 18px); line-height: 1.75; color: rgba(255, 255, 255, .78); }
.expo__cta { grid-column: 1; margin-top: 12px; display: flex; flex-wrap: wrap; gap: 12px; }
.expo__facts { grid-column: 2; grid-row: 1 / span 4; margin: 0; display: grid; gap: 0; border-radius: 20px; border: 1px solid rgba(255, 255, 255, .16); background: rgba(255, 255, 255, .06); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }
.expo__facts div { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; padding: 20px 26px; }
.expo__facts div + div { border-top: 1px solid rgba(255, 255, 255, .12); }
.expo__facts dt { font-size: 14px; color: rgba(255, 255, 255, .66); white-space: nowrap; }
.expo__facts dd { margin: 0; font-size: clamp(20px, 2vw, 28px); font-weight: 600; letter-spacing: -.01em; text-align: right; font-variant-numeric: tabular-nums; }
.expo__facts div:first-child dd { font-size: clamp(34px, 3.6vw, 52px); color: #FCD34D; letter-spacing: -.02em; }

/* ---------- 各屏通用 ---------- */
.sec { position: relative; padding: clamp(52px, 5.6vw, 84px) var(--px); }   /* 各屏上下留白；11-10 用户嫌空的地方太多，收了近一半 */
.sec__head { max-width: 780px; margin: 0 0 clamp(24px, 3vw, 40px); }
.sec__head--row { max-width: none; display: flex; align-items: flex-end; justify-content: space-between; gap: 32px; }
.sec__head--row > div:first-child { max-width: 780px; }
.sec h2, .end h2 { margin: 0; font-size: clamp(28px, 3.1vw, 44px); font-weight: 600; line-height: 1.24; letter-spacing: .01em; text-wrap: balance; }
html[lang="en"] .sec h2, html[lang="en"] .end h2 { letter-spacing: -.022em; line-height: 1.12; }
.lead { margin: 20px 0 0; font-size: clamp(16px, 1.2vw, 18px); line-height: 1.8; color: var(--ink-2); }
.eyebrow { margin-bottom: 18px; }

/* 出现：进了屏幕做一次（上移、放大一点、由虚变实），同一排的错开；不逐帧跟着滚动算，滚起来才顺 */
.js .reveal { opacity: 0; transform: translate3d(0, 44px, 0) scale(.97); filter: blur(6px); transition: opacity .9s var(--ease), transform .9s var(--ease), filter .9s var(--ease); transition-delay: var(--lag, 0ms); }
.js .reveal.is-in { opacity: 1; transform: none; filter: none; }
/* 大标题：进了屏幕，字一个接一个填实 */
.js .fill span { opacity: .16; transition: opacity .6s ease; transition-delay: calc(var(--i, 0) * 22ms); }
.js .fill.is-in span { opacity: 1; }

.sec--dark {
  margin: 0 clamp(8px, 1.4vw, 20px); border-radius: clamp(22px, 2.6vw, 36px); color: #fff; overflow: hidden;
  padding-block: clamp(44px, 4.8vw, 72px);
  padding-inline: max(calc(var(--gutter) - 12px), calc((100vw - var(--page)) / 2 - 20px));
  background:
    radial-gradient(70% 60% at 100% 0%, rgba(56, 189, 248, .16), transparent 62%),
    radial-gradient(60% 60% at 0% 100%, rgba(251, 191, 36, .10), transparent 60%),
    var(--navy-deep);
}
.sec--dark .eyebrow { color: #FCD34D; }
.sec--dark .lead { color: rgba(255, 255, 255, .72); }

/* ---------- 功能：五个步骤，一个大窗口 ---------- */
.show { position: relative; margin-bottom: 20px; }
.show__tabs { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 10px; margin-bottom: 22px; }
.show__tab {
  position: relative; display: flex; align-items: center; gap: 12px; padding: 14px 16px 18px; border: 0; border-radius: 14px; background: transparent; text-align: left;
  font: 500 15.5px var(--sans); color: var(--ink-3); cursor: pointer; transition: color .3s, background .3s;
}
.show__tab b { flex: none; width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; font-size: 13.5px; font-weight: 600; font-variant-numeric: tabular-nums; color: var(--ink-3); border: 1.5px solid #C5CEDD; transition: all .3s; }
.show__tab span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.show__tab i { position: absolute; left: 16px; right: 16px; bottom: 6px; height: 2.5px; border-radius: 2px; background: var(--line); overflow: hidden; }
.show__tab i::after { content: ""; position: absolute; inset: 0; background: var(--brand-line); transform: scaleX(0); transform-origin: left; }
.show__tab:hover { color: var(--ink); background: rgba(255, 255, 255, .6); }
.show__tab.is-on { color: var(--ink); font-weight: 600; background: #fff; box-shadow: 0 14px 34px -22px rgba(16, 25, 54, .4); }
.show__tab.is-on b { color: #fff; border-color: transparent; background: linear-gradient(135deg, #2b93db, var(--navy)); }
.show__tab.is-done i::after { transform: scaleX(1); }
.show__tab.is-on i::after { transform: scaleX(1); }
.show.is-auto .show__tab.is-on i::after { animation: tabfill var(--dwell, 6s) linear forwards; }
@keyframes tabfill { from { transform: scaleX(0); } to { transform: scaleX(1); } }
.show__stage { position: relative; display: grid; grid-template-columns: minmax(0, 1.72fr) minmax(0, 1fr); gap: clamp(20px, 3vw, 44px); align-items: stretch; }
.show__glow { position: absolute; z-index: 0; left: -6%; top: 8%; width: 70%; height: 92%; border-radius: 50%; pointer-events: none; filter: blur(70px); opacity: .55; background: radial-gradient(closest-side at 30% 40%, rgba(56, 189, 248, .5), transparent), radial-gradient(closest-side at 75% 70%, rgba(251, 191, 36, .5), transparent); }
.show__win { position: relative; z-index: 1; border-radius: 16px; overflow: hidden; border: 1px solid #D5DBE7; background: #fff; box-shadow: 0 50px 100px -40px rgba(16, 25, 54, .5), 0 2px 6px rgba(16, 25, 54, .06); display: flex; flex-direction: column; }
.show__shots { position: relative; aspect-ratio: 16 / 10; background: #EEF1F6; overflow: hidden; }
.show__shots img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: top left; opacity: 0; transform: scale(1.025); transition: opacity .7s ease, transform 1.1s var(--ease); }
.show__shots img.is-on { opacity: 1; transform: none; }
.show__side { position: relative; z-index: 1; display: grid; }
.show__panel { grid-area: 1 / 1; display: flex; flex-direction: column; padding: clamp(22px, 2.4vw, 34px); border-radius: 24px; background: #fff; border: 1px solid var(--line); opacity: 0; visibility: hidden; transform: translate3d(0, 16px, 0); transition: opacity .5s ease, transform .6s var(--ease), visibility 0s .5s; }
.show__panel.is-on { opacity: 1; visibility: visible; transform: none; transition: opacity .5s ease .12s, transform .6s var(--ease) .12s, visibility 0s; }
.show__no { font-size: clamp(44px, 4.4vw, 68px); font-weight: 600; line-height: 1; letter-spacing: -.04em; font-variant-numeric: tabular-nums; background: linear-gradient(100deg, var(--navy) 10%, #2b93db 70%, #F5A524 130%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.show__panel h3 { margin: 14px 0 16px; font-size: clamp(21px, 1.9vw, 27px); font-weight: 600; line-height: 1.3; }
.show__panel ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 11px; }
.show__panel li { position: relative; padding-left: 26px; font-size: 15px; line-height: 1.6; color: var(--ink-2); }
.show__panel li::before { content: ""; position: absolute; left: 2px; top: .42em; width: 12px; height: 7px; border-left: 2px solid #2b93db; border-bottom: 2px solid #2b93db; transform: rotate(-45deg); }
.show__kpi { margin: auto 0 0; padding-top: 22px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.show__kpi div { padding: 13px 15px 12px; border-radius: 14px; background: var(--bg); border: 1px solid var(--line); }
.show__kpi div:only-child { grid-column: 1 / -1; }
.show__kpi dt { font-size: 12.5px; color: var(--ink-2); }
.show__kpi dd { margin: 3px 0 0; display: flex; align-items: baseline; gap: 5px; white-space: nowrap; font-variant-numeric: tabular-nums; }
.show__kpi dd b { font-size: clamp(20px, 1.8vw, 25px); font-weight: 600; letter-spacing: -.02em; }
.show__kpi dd i { font-style: normal; font-size: 12.5px; color: var(--ink-2); }
.show__kpi .chips { display: flex; gap: 8px; }
.show__kpi .chips span { padding: 3px 10px; border-radius: 999px; border: 1px solid #C5CEDD; font-size: 12.5px; font-weight: 600; letter-spacing: .06em; color: var(--ink-2); }

/* ---------- 功能：下面四格 ---------- */
.feats { padding-top: clamp(52px, 5.6vw, 84px); }
.feats .sec__head { max-width: 900px; }
.bento { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 20px; }
.tile {
  position: relative; min-height: 300px; padding: 28px; border-radius: 24px; background: #fff; border: 1px solid var(--line); overflow: hidden;
  display: flex; flex-direction: column;
}
.tile::before { /* 鼠标移上去跟着走的一团光 */
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0; transition: opacity .35s;
  background: radial-gradient(460px circle at var(--mx, 50%) var(--my, 0%), rgba(56, 189, 248, .11), transparent 62%);
}
.tile:hover::before { opacity: 1; }
.tile > * { position: relative; }
.tag { align-self: flex-start; display: inline-block; padding: 4px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; letter-spacing: .06em; color: var(--navy); background: rgba(23, 48, 111, .07); white-space: nowrap; }
.tag--amber { color: var(--amber-ink); background: rgba(251, 191, 36, .16); }
.tile__text > h3:first-child, .tile > h3:first-child { margin-top: 0; }
.tile h3 { margin: 16px 0 10px; font-size: clamp(19px, 1.5vw, 22px); font-weight: 600; line-height: 1.35; }
.tile p { margin: 0; font-size: 14.5px; line-height: 1.78; color: var(--ink-2); }
.tile--modes { grid-column: span 7; }
.tile--units { grid-column: span 5; }
.tile--more { grid-column: span 5; }
.tile--rep { grid-column: span 7; }

/* 十类方阵：一条自己走的图带 */
.marquee { margin: auto -28px -28px; padding: 26px 0 26px; overflow: hidden; -webkit-mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent); mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent); }
.marquee__track { display: flex; gap: 14px; width: max-content; animation: marq 46s linear infinite; }
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee figure { margin: 0; width: 196px; flex: none; }
.marquee img { width: 100%; height: auto; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 14px; background: #E5E8ED; }
.marquee figcaption { margin-top: 8px; font-size: 12.5px; color: var(--ink-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
@keyframes marq { to { transform: translateX(-50%); } }

/* 逆变单元：一个大数 */
.tile__big { margin: 0 0 -8px !important; line-height: 1 !important; }
.tile__big b { font-size: clamp(56px, 5.4vw, 84px); font-weight: 600; letter-spacing: -.04em; font-variant-numeric: tabular-nums; background: linear-gradient(100deg, var(--navy) 10%, #2b93db 90%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.unit { margin-top: auto !important; padding-top: 18px; display: flex; flex-direction: column; gap: 6px; font-size: 12px !important; color: var(--ink-3) !important; }
.unit code { align-self: flex-start; padding: 7px 12px; border-radius: 10px; background: var(--bg); border: 1px solid var(--line); font: 500 13px ui-monospace, "SF Mono", Menlo, Consolas, monospace; color: var(--navy); }

/* 格子里的图 */
.tile__pic { position: relative; overflow: hidden; background: #E5E8ED; aspect-ratio: 16 / 10; }
.tile__pic img { width: 100%; height: 114%; max-width: none; object-fit: cover; will-change: transform; }

.pictos { margin-top: auto; padding-top: 24px; display: flex; gap: 14px; }
.pictos svg { width: 84px; height: 84px; padding: 16px; border-radius: 22px; background: rgba(251, 191, 36, .13); fill: none; stroke: var(--amber-ink); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* 报告：一页纸斜着露出来 */
.tile--rep { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, .9fr); gap: 32px; padding-bottom: 0; }
.tile--rep .tile__text { display: flex; flex-direction: column; padding-bottom: 28px; }
.tile__pic--doc { align-self: end; aspect-ratio: auto; height: 100%; min-height: 250px; margin: 6px -6px 0 0; border-radius: 14px 14px 0 0; border: 1px solid var(--line); border-bottom: 0; background: #fff; box-shadow: 0 -10px 60px -28px rgba(16, 25, 54, .5); transform: rotate(1.6deg) translateY(10px); transform-origin: bottom left; }
.tile__pic--doc img { height: 108%; object-position: top center; }
.bento__note { margin: 16px 2px 0; font-size: 13px; color: var(--ink-3); }

/* ---------- 主要能力：直接列，三列两排 ---------- */
.caps6 { padding-top: 0; }
.caps6__grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.cap {
  position: relative; padding: 22px 28px 28px; border-radius: 24px; background: #fff; border: 1px solid var(--line); overflow: hidden;
  display: flex; flex-direction: column;
}
.cap::after { content: ""; position: absolute; inset: 0 0 auto 0; height: 3px; background: var(--brand-line); opacity: .9; }
.cap__viz { min-height: 132px; margin: 0; display: flex; align-items: center; }
.cap__viz svg { width: 100%; max-width: 290px; height: auto; overflow: visible; }
.ln { fill: none; stroke: var(--navy); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.ln--soft { stroke: #B6C0D3; }
.ln--amber { stroke: #E08A0B; }
.mk { fill: none; stroke: #2b93db; stroke-width: 1.5; stroke-dasharray: 3 4; }
.mk--a { stroke: #E08A0B; }
.cap__viz--hours { display: grid; grid-template-columns: repeat(12, 17px); gap: 6px; align-content: center; }
.cap__viz--hours i { width: 17px; height: 17px; border-radius: 3px; background: var(--navy); opacity: .12; animation: hour 3.4s ease-in-out infinite; animation-delay: calc(var(--i, 0) * -.19s); }
@keyframes hour { 0%, 100% { opacity: .1; } 50% { opacity: .95; background: #F5A524; } }
.cap__viz--p90 { flex-direction: column; align-items: flex-start; gap: 4px; }
.cap__viz--p90 svg { max-width: 250px; }
.cap__viz--p90 p { margin: 0; display: flex; align-items: baseline; gap: 12px; font-size: 12.5px !important; color: var(--ink-2); font-variant-numeric: tabular-nums; }
.cap__viz--p90 b { font-size: 16px; color: var(--ink); }
.cap__viz--p90 .amber, .cap__viz--p90 .amber b { color: var(--amber-ink); }
.cap__viz--p90 i { font-style: normal; }
.cap__viz--xf img { width: 128px; height: 128px; }
.cap h3 { margin: auto 0 8px; padding-top: 14px; font-size: clamp(19px, 1.5vw, 22px); font-weight: 600; line-height: 1.35; }
.cap p { margin: 0; font-size: 14.5px; line-height: 1.75; color: var(--ink-2); }
/* ---------- 精度 ---------- */
.acc__big { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid rgba(255, 255, 255, .14); border-bottom: 1px solid rgba(255, 255, 255, .14); }
.acc__n { padding: 30px 32px 30px 0; }
.acc__n + .acc__n { padding-left: 32px; border-left: 1px solid rgba(255, 255, 255, .14); }
.acc__v { margin: 0; display: flex; align-items: baseline; gap: 6px; }
.acc__v b { font-size: clamp(60px, 7.6vw, 108px); font-weight: 600; letter-spacing: -.045em; line-height: 1; font-variant-numeric: tabular-nums; background: linear-gradient(100deg, #7DD3FC 10%, #FCD34D 95%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.acc__v i { font-style: normal; font-size: clamp(24px, 2.6vw, 36px); font-weight: 600; color: #FCD34D; }
.acc__n h3 { margin: 20px 0 8px; font-size: 18px; font-weight: 600; }
.acc__n p { margin: 0; font-size: 14.5px; line-height: 1.7; color: rgba(255, 255, 255, .68); }
.acc__table-wrap { margin-top: 30px; overflow-x: auto; border-radius: 16px; border: 1px solid rgba(255, 255, 255, .12); background: rgba(255, 255, 255, .035); }
.acc__table { width: 100%; min-width: 780px; border-collapse: collapse; font-size: 14px; line-height: 1.6; }
.acc__table th { padding: 14px 18px; text-align: left; font-weight: 500; color: rgba(255, 255, 255, .58); border-bottom: 1px solid rgba(255, 255, 255, .12); white-space: nowrap; }
.acc__table td { padding: 14px 18px; vertical-align: top; color: rgba(255, 255, 255, .86); border-bottom: 1px solid rgba(255, 255, 255, .08); }
.acc__table tr:last-child td { border-bottom: 0; }
.acc__nums { white-space: nowrap; font-variant-numeric: tabular-nums; word-spacing: .3em; }
.acc__mae { white-space: nowrap; font-weight: 600; font-size: 17px; color: #FCD34D; }
.acc__note { margin: 22px 0 0; font-size: 12.5px; line-height: 1.75; color: rgba(255, 255, 255, .5); }

/* ---------- 适用范围 ---------- */
.cats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.cat { border-radius: 20px; overflow: hidden; background: #fff; border: 1px solid var(--line); }
.cat__img { aspect-ratio: 16 / 10; background: #E5E8ED; overflow: hidden; }
.cat__img img { width: 100%; height: 100%; object-fit: cover; }
.cat h3 { margin: 20px 24px 8px; font-size: 19px; font-weight: 600; }
.cat p { margin: 0 24px 24px; font-size: 14.5px; line-height: 1.75; color: var(--ink-2); }
.scope__note { margin: 24px 0 0; padding: 20px 24px; border-radius: 18px; background: rgba(255, 255, 255, .62); border: 1px solid var(--line); font-size: 14.5px; line-height: 1.75; color: var(--ink-2); display: grid; grid-template-columns: auto 1fr; gap: 6px 24px; align-items: baseline; }
.scope__note b { font-size: 16px; color: var(--ink); white-space: nowrap; }

/* ---------- 小伏 ---------- */
.xiaofu.sec--dark { padding-block: clamp(32px, 3.4vw, 48px); }
.xfs { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: clamp(28px, 4vw, 56px); align-items: center; }
.xfs__stage { max-width: 220px; width: 100%; margin: 0 auto; }
.xfs__canvas {
  position: relative; aspect-ratio: 1; border-radius: 26px; overflow: hidden;
  background: radial-gradient(circle at 50% 47%, #1f3d70 0%, #10213d 42%, #08111f 78%, #060c17 100%);
  box-shadow: 0 40px 80px -40px rgba(0, 0, 0, .8), inset 0 0 0 1px rgba(160, 200, 255, .1);
}
.xfs__canvas::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .7;
  background-image:
    radial-gradient(1.2px 1.2px at 9% 18%, rgba(255, 255, 255, .7) 50%, transparent 51%),
    radial-gradient(1px 1px at 86% 12%, rgba(255, 255, 255, .55) 50%, transparent 51%),
    radial-gradient(1.4px 1.4px at 93% 58%, rgba(255, 236, 200, .6) 50%, transparent 51%),
    radial-gradient(1px 1px at 16% 72%, rgba(255, 255, 255, .5) 50%, transparent 51%),
    radial-gradient(1.2px 1.2px at 58% 92%, rgba(255, 255, 255, .45) 50%, transparent 51%),
    radial-gradient(1px 1px at 38% 7%, rgba(255, 255, 255, .5) 50%, transparent 51%);
}
.xfs__art { position: absolute; z-index: 1; top: -10%; left: -10%; width: 120%; height: 120%; max-width: none; transition: opacity .4s ease; }
.xfs__3d { position: absolute; inset: -10%; z-index: 2; opacity: 0; transition: opacity .4s ease; }
.xfs__stage.is-3d .xfs__3d { opacity: 1; }
.xfs__stage.is-3d .xfs__art { opacity: 0; }
.xfs__modes { display: flex; gap: 4px; width: fit-content; margin: 12px auto 0; padding: 4px; border-radius: 999px; background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .14); }
.xfs__mode { border: 0; padding: 6px 16px; border-radius: 999px; background: transparent; color: rgba(255, 255, 255, .8); font: 500 14px var(--sans); cursor: pointer; transition: background .2s, color .2s; }
.xfs__mode:hover { background: rgba(255, 255, 255, .08); }
.xfs__mode[aria-pressed="true"] { background: #fff; color: var(--navy-deep); }
.xfs__hint { display: none; margin: 8px 0 0; text-align: center; font-size: 12px; color: rgba(255, 255, 255, .55); }
.xfs__stage.is-3d .xfs__hint { display: block; }
.xfs__copy h2 { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; font-size: clamp(24px, 2.4vw, 34px); }
.xfs__copy .lead { margin-top: 8px; font-size: 16px; }
.xfs__copy .pill { color: #FCD34D; border-color: rgba(252, 211, 77, .5); font-size: 12px; padding: 5px 9px; }
.xfs__caps { margin: 22px 0 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.xfs__caps li { display: grid; grid-template-columns: 36px 1fr; gap: 12px; align-items: start; }
.xfs__ico { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; background: rgba(125, 211, 252, .12); border: 1px solid rgba(125, 211, 252, .22); }
.xfs__ico svg { width: 19px; height: 19px; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.contact__ico svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.xfs__ico svg { color: #7DD3FC; }
.xfs__caps h3 { margin: 0 0 4px; font-size: 16px; font-weight: 600; line-height: 1.4; }
.xfs__caps p { margin: 0; font-size: 13.5px; line-height: 1.65; color: rgba(255, 255, 255, .7); }
.xfs__note { margin: 18px 0 0; padding-top: 12px; border-top: 1px solid rgba(255, 255, 255, .12); font-size: 13px; color: rgba(255, 255, 255, .55); }

/* ---------- AI 智汇：闭环图。不停住；进了屏幕自己一步一步点亮（脚本按时间走），点哪一步就跳到哪一步 ---------- */
.hubx__stage { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 80px); align-items: center; }
.hubring { position: relative; width: min(100%, 520px); aspect-ratio: 1; margin: 0 auto; }
.hubring svg { width: 100%; height: 100%; overflow: visible; }
.hubring__rail { fill: none; stroke: #D3DAE7; stroke-width: 1.4; stroke-dasharray: 2 7; stroke-linecap: round; }
.hubring__start { fill: #2b7fd1; }
.hubring__arc { fill: none; stroke: #2b7fd1; stroke-width: 2.6; stroke-linecap: round; }
.hubring__back { stroke: #E08A0B; stroke-dasharray: 5 5; }
.hubring__head { fill: #2b7fd1; }
.hubring__head--back { fill: #E08A0B; }
.hubring__nodes circle { fill: url(#hub-node); transition: fill .35s, stroke .35s; }
.hubring__nodes .is-amber circle { fill: url(#hub-node-a); }
.hubring__nodes g { transform-box: fill-box; transform-origin: center; transition: transform .45s var(--ease); }
.hubring__nodes text { fill: #fff; font: 600 17px var(--sans); text-anchor: middle; dominant-baseline: central; transition: fill .35s; }
.hubring__hub { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); text-align: center; line-height: 1.25; pointer-events: none; }
.hubring__hub span { display: block; font-size: clamp(14px, 1.2vw, 17px); font-weight: 600; letter-spacing: .1em; color: var(--ink-3); }
.hubring__hub strong { display: block; font-size: clamp(24px, 2.6vw, 36px); font-weight: 600; background: linear-gradient(100deg, var(--navy) 10%, #2b93db 70%, #F5A524 125%); -webkit-background-clip: text; background-clip: text; color: transparent; }
/* 跟着滚动走的时候：弧线按 --d 画出来，没走到的节点是空心的 */
.hubx.is-live .hubring__arc { stroke-dasharray: 100; stroke-dashoffset: calc(100 - var(--d, 0) * 100); }
.hubx.is-live .hubring__back { stroke-dasharray: 100; }
.hubx.is-live .hubring__head { opacity: var(--o, 0); transition: opacity .25s; }
.hubx.is-live .hubring__start { opacity: var(--o, 0); }
.hubx.is-live .hubring__nodes g:not(.is-on) circle { fill: #fff; stroke: #C5CEDD; stroke-width: 1.5; }
.hubx.is-live .hubring__nodes g:not(.is-on) text { fill: var(--ink-3); }
.hubx.is-live .hubring__nodes g.is-now { transform: scale(1.18); }

.hubx__side h3 { margin: 0; font-size: clamp(21px, 2vw, 28px); font-weight: 600; line-height: 1.3; }
.hubx__lead { margin: 8px 0 0; font-size: 15.5px; font-weight: 500; color: var(--amber-ink); }
.hubsteps { list-style: none; margin: clamp(10px, 2vh, 20px) 0 0; padding: 0; display: grid; gap: 2px; }
.hubsteps li { cursor: pointer; display: grid; grid-template-columns: 34px 1fr; gap: 14px; align-items: start; padding: 9px 12px; border-radius: 14px; border: 1px solid transparent; transition: opacity .35s, background .35s, transform .45s var(--ease), box-shadow .35s; }
.hubsteps__no { width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; font-size: 14.5px; font-weight: 600; color: #fff; background: linear-gradient(135deg, #2b93db, #17306F); font-variant-numeric: tabular-nums; }
.hubsteps .is-amber .hubsteps__no { background: linear-gradient(135deg, #F5A524, #C2700A); }
.hubsteps h4 { margin: 1px 0 2px; font-size: 16.5px; font-weight: 600; line-height: 1.4; }
.hubsteps p { margin: 0; font-size: 13.5px; line-height: 1.6; color: var(--ink-2); }
.hubx.is-live .hubsteps li { opacity: .34; }
.hubx.is-live .hubsteps li.is-done { opacity: .62; }
.hubx.is-live .hubsteps li.is-on { opacity: 1; background: #fff; border-color: var(--line); box-shadow: 0 18px 40px -26px rgba(16, 25, 54, .45); transform: translateX(8px); }
.hubx__back { margin: 12px 0 0 12px; display: flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 500; color: var(--amber-ink); }
.hubx.is-live .hubx__back { opacity: var(--o, 0); transform: translateY(calc((1 - var(--o, 0)) * 10px)); }

.hubmore__agent { display: grid; grid-template-columns: 72px 1fr; gap: 20px; align-items: center; max-width: 860px; margin: clamp(24px, 3vw, 40px) 0 0; }
.hubmore__agent img { width: 72px; height: 72px; }
.hubmore__agent p { margin: 0; font-size: 16px; line-height: 1.8; color: var(--ink-2); }
.hubmore__notes { margin: 20px 0 0; padding: 0; list-style: none; display: flex; flex-wrap: wrap; gap: 10px 28px; font-size: 14px; color: var(--ink-2); }
.hubmore__notes li { display: flex; align-items: center; gap: 8px; }
.hubmore__notes svg { flex: none; color: var(--ink-3); }
.hubmore__pilot { margin-left: auto; font-size: 13px; color: var(--ink-3); }
.hub__cta { margin-top: 32px; display: flex; justify-content: center; }

/* ---------- 关于我们 ---------- */
.about { padding-top: 0; }
.about .sec__head { max-width: 860px; }
.trio { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.trio article { padding: 32px 32px 8px 0; }
.trio article + article { padding-left: 32px; border-left: 1px solid var(--line); }
.trio b { display: block; font-size: clamp(30px, 3.4vw, 48px); font-weight: 600; line-height: 1.15; letter-spacing: .02em; background: linear-gradient(100deg, var(--navy) 20%, #2b93db 70%, #F5A524 120%); -webkit-background-clip: text; background-clip: text; color: transparent; }
html[lang="en"] .trio b { letter-spacing: -.03em; }
.trio p { margin: 16px 0 0; font-size: 15px; line-height: 1.8; color: var(--ink-2); }

/* ---------- 联系我们 ---------- */
.contact { padding-top: 0; }
.contact__grid { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(28px, 5vw, 72px); align-items: start; }
.contact__info { margin: 0; padding: 0; list-style: none; display: grid; gap: 26px; }
.contact__info li { display: grid; grid-template-columns: 44px 1fr; gap: 16px; }
.contact__ico { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: #fff; border: 1px solid var(--line); color: var(--navy); }
.contact__info h3 { margin: 0 0 4px; font-size: 16.5px; font-weight: 600; }
.contact__info p { margin: 0; font-size: 14.5px; line-height: 1.7; color: var(--ink-2); }
.contact__info a { color: var(--navy); border-bottom: 1px solid rgba(23, 48, 111, .3); }
.contact__info a:hover { border-color: var(--navy); }
.form { display: grid; gap: 14px; padding: clamp(20px, 2.6vw, 32px); border-radius: 22px; background: #fff; border: 1px solid var(--line); }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form input, .form textarea { width: 100%; padding: 14px 16px; border-radius: 12px; border: 1px solid var(--line); background: var(--bg); font: 400 15.5px var(--sans); color: var(--ink); transition: border-color .2s, background .2s; }
.form textarea { resize: vertical; min-height: 140px; line-height: 1.6; }
.form input::placeholder, .form textarea::placeholder { color: var(--ink-3); }
.form input:focus, .form textarea:focus { outline: none; border-color: var(--navy); background: #fff; }
.form__foot { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.form__note { margin: 0; flex: 1 1 240px; font-size: 13px; line-height: 1.6; color: var(--ink-3); }
.form__sent { margin: 0; padding: 12px 16px; border-radius: 12px; background: rgba(34, 160, 107, .1); color: #17694A; font-size: 14.5px; }

/* ---------- 行动屏 ---------- */
.end { padding: 0 clamp(8px, 1.4vw, 20px) clamp(8px, 1.4vw, 20px); background: var(--bg); }
.end__in {
  border-radius: clamp(22px, 2.6vw, 36px); padding: clamp(48px, 5.6vw, 84px) var(--gutter); text-align: center; color: #fff; overflow: hidden; position: relative;
  background:
    radial-gradient(90% 120% at 50% 128%, rgba(251, 191, 36, .55) 0%, rgba(245, 130, 60, .28) 30%, transparent 62%),
    radial-gradient(60% 70% at 85% -10%, rgba(56, 189, 248, .22), transparent 60%),
    var(--navy-deep);
}
.end p { margin: 16px auto 0; max-width: 34em; font-size: clamp(16px, 1.25vw, 18px); color: rgba(255, 255, 255, .75); }
.end__cta { margin-top: 36px; display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }

/* ---------- 页脚 ---------- */
.foot { margin-top: 0; padding: clamp(40px, 4.4vw, 64px) var(--px) 28px; background: var(--navy-deep); color: rgba(255, 255, 255, .7); font-size: 14.5px; }
.foot__top { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.3fr; gap: 32px 40px; }
.foot__brand img { height: 34px; width: auto; }
.foot__brand p { margin: 16px 0 0; max-width: 22em; line-height: 1.7; }
.foot h4 { margin: 4px 0 14px; font-size: 14px; font-weight: 600; color: #fff; letter-spacing: .04em; }
.foot ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 9px; }
.foot a:hover { color: #fff; }
.foot__contact p { margin: 0 0 6px; }
.foot__contact strong { color: #fff; font-weight: 500; }
.foot__copy { margin: clamp(32px, 4vw, 56px) 0 0; padding-top: 22px; border-top: 1px solid rgba(255, 255, 255, .1); font-size: 13px; color: rgba(255, 255, 255, .5); text-align: center; }
.foot__copy strong { color: rgba(255, 255, 255, .8); font-weight: 600; }

/* ---------- 屏幕矮（笔记本 720～800 高）：数字卡收紧 ---------- */
@media (max-height: 820px) and (min-width: 900px) {
  .cards { height: 318px; transform: translateY(-64%); }
  .card { padding: 12px 16px 11px; }
  .card__v b { font-size: 24px; }
  .card--b { top: 104px; }
  .card--c { top: 216px; }
  .cards__note { top: 326px; }
  .hero { transform: translateY(-62%); }
  .hero__eyebrow { margin-bottom: 16px; }
  .hero__sub { margin-top: 16px; }
  .hero__cta { margin-top: 24px; }
  .sunchip { bottom: 100px; }
  .xf { bottom: 104px; }
  .xf__stage { width: 80px; height: 80px; border-radius: 22px; }
  .facts { height: 84px; }
}

/* ---------- 又宽又矮的窗口（高度不到 700）：文字间距再收一档，别压到小伏 ---------- */
@media (max-height: 700px) and (min-width: 900px) {
  .hero { transform: translateY(-60%); }
  .hero__eyebrow { margin-bottom: 12px; }
  .hero__sub { margin-top: 12px; font-size: 15.5px; line-height: 1.6; }
  .hero__cta { margin-top: 20px; }
  .btn { height: 44px; padding: 0 22px; font-size: 15px; }
  .btn--sm { height: 38px; }
  .sunchip { bottom: 96px; height: 34px; }
  .xf { bottom: 98px; gap: 12px; }
  .xf__stage { width: 60px; height: 60px; border-radius: 18px; }
  .xf__name { font-size: 14.5px; }
  .xf__desc { font-size: 12.5px; margin-top: 2px; }
}

/* ---------- 中等宽度 ---------- */
@media (max-width: 1180px) and (min-width: 900px) {
  .cards { width: 250px; }
  .card--b { right: 0; }
  .card { width: 220px; }
  .cards__note { max-width: 250px; }
  .sunchip i { display: none; }
}
@media (max-width: 1140px) {
  /* 顶栏的六个入口收进菜单 */
  .nav__menu { display: block; }
  .nav__links {
    position: absolute; top: calc(100% + 10px); right: 0; left: 0; margin: 0; padding: 10px; flex-direction: column; gap: 2px;
    background: rgba(255, 255, 255, .96); border: 1px solid rgba(16, 25, 54, .08); border-radius: 22px; box-shadow: 0 30px 60px -30px rgba(16, 25, 54, .45);
    backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
    opacity: 0; visibility: hidden; transform: translateY(-8px); transition: opacity .25s, transform .25s var(--ease), visibility .25s;
  }
  .nav.is-open .nav__links { opacity: 1; visibility: visible; transform: none; }
  .nav__links a { padding: 13px 16px; font-size: 16px; border-radius: 14px; }
  .tile--modes, .tile--rep { grid-column: span 12; }
  .tile--units, .tile--more { grid-column: span 6; }
  .show__tab { padding: 12px 10px 16px; gap: 8px; font-size: 14px; }
  .show__tab i { left: 10px; right: 10px; }
  .show__stage { grid-template-columns: 1fr; }
  .show__panel { flex-direction: row; flex-wrap: wrap; align-items: flex-start; gap: 6px 28px; }
  .show__no { flex-basis: 100%; }
  .show__panel h3 { flex-basis: 100%; margin: 4px 0 8px; }
  .show__panel ul { flex: 1 1 320px; }
  .show__kpi { flex: 1 1 280px; margin: 0; padding: 0; }
  .caps6__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .xfs__caps { grid-template-columns: 1fr; gap: 14px; }
  .expo__in { grid-template-columns: 1fr; }
  .expo__facts { grid-column: 1; grid-row: auto; margin-top: 8px; }
  .foot__top { grid-template-columns: 1fr 1fr; }
}

/* ---------- 手机和窄屏：不做停住和收缩，全部顺着往下排 ---------- */
@media (max-width: 899px) {
  html { scroll-padding-top: 80px; }
  .nav { top: 12px; height: 54px; padding: 0 6px 0 18px; gap: 6px; }
  .nav__logo img { height: 26px; }
  .nav .btn--sm { height: 38px; padding: 0 16px; font-size: 14px; }
  .stage { position: static; height: auto; min-height: 0; }
  .stage::after { display: none; }
  .stage__pin { position: static; height: auto; min-height: 0; overflow: visible; transform: none; display: flex; flex-direction: column; padding: 104px 20px 28px; }
  .stage__veil, .stage__blur, .sunglow { display: none; }
  .after { border-radius: 0; box-shadow: none; padding-top: 0; }
  .hero { position: static; transform: none; width: auto; max-width: none; order: 1; }
  .hero__eyebrow { font-size: 12.5px; letter-spacing: .1em; margin-bottom: 16px; }
  .hero__title { font-size: min(calc((100vw - 40px) / 11.3), 44px); line-height: 1.24; letter-spacing: 0; }
  html[lang="en"] .hero__title { font-size: min(calc((100vw - 40px) / 10.6), 48px); }
  .hero__sub { margin-top: 16px; font-size: 16px; }
  .hero__cta { margin-top: 24px; gap: 10px; }
  .btn { height: 48px; padding: 0 22px; font-size: 15.5px; }
  .stage__media { position: relative; inset: auto; order: 2; margin-top: 32px; aspect-ratio: 16 / 10; border-radius: 18px; overflow: hidden; background-image: url("media/hero-arc-poster-m.jpg"); background-position: center; background-size: cover; box-shadow: 0 24px 50px -28px rgba(16, 25, 54, .5); }
  .stage__media video { object-position: center; }
  .cards { position: static; transform: none; width: auto; height: auto; order: 3; margin-top: 14px; background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 4px 18px 12px; }
  .card { position: static; width: auto; padding: 13px 0; border: 0; border-bottom: 1px solid var(--line); border-radius: 0; background: none; box-shadow: none; backdrop-filter: none; -webkit-backdrop-filter: none; display: grid; grid-template-columns: 1fr auto; align-items: baseline; gap: 2px 12px; animation: none; }
  .card__v b, .card--b .card__v b { font-size: 20px; }
  .card__s { grid-column: 1 / -1; text-align: right; }
  .cards__note { position: static; max-width: none; text-align: left; margin-top: 10px; padding: 0; border: 0; background: none; backdrop-filter: none; -webkit-backdrop-filter: none; animation: none; }
  .sunchip { position: static; order: 2; align-self: flex-start; margin-top: 10px; height: 34px; background: none; border: 0; box-shadow: none; padding: 0; backdrop-filter: none; -webkit-backdrop-filter: none; animation: none; }
  .xf { position: static; order: 4; margin-top: 18px; animation: none; }
  .xf__stage { width: 84px; height: 84px; border-radius: 22px; }
  .facts { position: static; order: 5; height: auto; margin-top: 28px; padding: 0; grid-template-columns: 1fr 1fr; gap: 0; background: none; border: 0; backdrop-filter: none; -webkit-backdrop-filter: none; }
  .facts li { flex-direction: column; gap: 0; padding: 14px 0 14px 16px; border-left: 0; border-top: 1px solid var(--line); }
  .facts li:first-child { padding-left: 16px; }
  .facts li:nth-child(odd) { padding-left: 0; }
  .facts b { font-size: 30px; }

  .sec { padding: 52px 20px; }
  .sec--dark { margin: 0 8px; padding: 44px 16px; }
  .about, .contact { padding-top: 0; }
  .feats { padding-top: 24px; }
  .sec__head--row { display: block; }
  .track__nav { display: none; }
  .topbar { height: 40px; font-size: 13px; gap: 8px; }
  .topbar__long { display: none; }
  .topbar__short { display: inline; }
  .has-bar .nav { top: calc(12px + var(--bar, 40px)); }
  .has-bar .stage__pin { padding-top: 132px; }
  .cats { grid-template-columns: 1fr; gap: 14px; }
  /* WCPEC-9 */
  .expo { padding: 0 8px; }
  .expo__in { padding: 40px 22px 28px; gap: 16px; }
  .expo__facts div { padding: 15px 18px; }
  /* 五个步骤：标签横着滑，窗口在上、要点在下 */
  .show__tabs { display: flex; gap: 8px; overflow-x: auto; margin: 0 -20px 14px; padding: 0 20px 6px; scrollbar-width: none; }
  .show__tabs::-webkit-scrollbar { display: none; }
  .show__tab { flex: none; padding: 10px 14px 15px; }
  .show__win { border-radius: 12px; }
  .show__win .win__bar { height: 28px; }
  .show__win .win__bar i { width: 7px; height: 7px; }
  .show__win .win__bar span { font-size: 10px; padding: 1px 24px; transform: translateX(-14px); }
  .show__panel { display: flex; flex-direction: column; flex-wrap: nowrap; align-items: stretch; padding: 20px; border-radius: 20px; gap: 0; }
  .show__no, .show__panel h3, .show__panel ul, .show__kpi { flex: none; }
  .show__panel h3 { margin: 10px 0 12px; }
  .show__kpi { margin-top: 18px; }
  .show__glow { display: none; }
  /* 功能：一格一行 */
  .bento { grid-template-columns: 1fr; gap: 14px; }
  .tile, .tile--modes, .tile--units, .tile--more, .tile--rep { grid-column: auto; min-height: 0; }
  .tile { padding: 22px 20px 24px; border-radius: 20px; }
  .tile--rep { display: flex; gap: 0; padding-bottom: 0; }
  .tile--rep .tile__text { padding-bottom: 18px; }
  .tile__pic--doc { height: 210px; min-height: 0; margin: 0 8px 0 0; }
  .marquee { margin: 18px -20px -24px; padding: 4px 0 22px; }
  .marquee figure { width: 150px; }
  .tile__big b { font-size: 60px; }
  /* 主要能力：一条一行 */
  .caps6__grid { grid-template-columns: 1fr; gap: 14px; }
  .cap { display: grid; grid-template-columns: 96px 1fr; gap: 0 16px; align-items: center; padding: 18px 18px 18px 16px; border-radius: 20px; }
  .cap__viz { grid-row: 1 / span 2; min-height: 0; }
  .cap__viz svg { max-width: 96px; }
  .cap__viz--hours { grid-template-columns: repeat(6, 11px); gap: 4px; }
  .cap__viz--hours i { width: 11px; height: 11px; }
  .cap__viz--hours i:nth-child(n+25) { display: none; }
  .cap__viz--p90 p { display: none; }
  .cap__viz--xf img { width: 84px; height: 84px; }
  .cap h3 { margin: 0 0 4px; padding: 0; align-self: end; }
  .cap p { align-self: start; }
  /* AI 智汇：圈在上、六步在下 */
  .hubx__stage { display: block; }
  .hubring { width: min(84vw, 340px); margin: 28px auto 32px; }
  .hubsteps { gap: 6px; }
  .hubsteps li { padding: 9px 0; }
  .hubx__back { margin-left: 0; }
  .hubmore__agent { grid-template-columns: 56px 1fr; gap: 14px; align-items: start; }
  .hubmore__agent img { width: 56px; height: 56px; }
  .hubmore__pilot { margin-left: 0; }
  .scope__note { grid-template-columns: 1fr; padding: 18px 20px; }
  .acc__big { grid-template-columns: 1fr; }
  .acc__n { padding: 28px 0; }
  .acc__n + .acc__n { padding-left: 0; border-left: 0; border-top: 1px solid rgba(255, 255, 255, .14); }
  .acc__v b { font-size: 68px; }
  .acc__table-wrap { margin-inline: -4px; }
  .xiaofu.sec--dark { padding-block: 32px; }
  .xfs { grid-template-columns: 1fr; gap: 20px; }
  .xfs__stage { max-width: 180px; }
  .trio { grid-template-columns: 1fr; }
  .trio article { padding: 24px 0 8px; }
  .trio article + article { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); margin-top: 16px; }
  .contact__grid { grid-template-columns: 1fr; }
  .form__row { grid-template-columns: 1fr; }
  .end__in { padding: 48px 20px; }
  .foot { padding: 48px 20px 24px; }
  .foot__top { grid-template-columns: 1fr 1fr; gap: 28px 20px; }
  .foot__brand, .foot__contact { grid-column: 1 / -1; }
}

@media (prefers-reduced-motion: reduce) {
  .card, .cards__note, .xf, .sunchip { animation: none; }
  .btn { transition: none; }
  .marquee__track, .cap__viz--hours i, .topbar__dot { animation: none; }
  .marquee { overflow-x: auto; }
  .js .fill span { opacity: 1; transition: none; }
  .js .reveal { opacity: 1; transform: none; filter: none; transition: none; }
  .show__shots img, .show__panel { transition: none; }
  .stage__pin { transform: none; }
  .stage::after { display: none; }
  html { scroll-behavior: auto; }
}

/* ---------- 顶栏上的深浅色切换；标志亮暗各一份 ---------- */
.nav__theme { flex: none; width: 36px; height: 36px; border-radius: 50%; border: 1px solid var(--line); background: transparent; color: var(--ink-2); cursor: pointer; display: grid; place-items: center; }
.nav__theme:hover { border-color: var(--ink-3); color: var(--ink); }
.nav__theme .i-sun, .logo-dark { display: none; }
html[data-theme="dark"] .nav__theme .i-sun, html[data-theme="dark"] .logo-dark { display: block; }
html[data-theme="dark"] .nav__theme .i-moon, html[data-theme="dark"] .logo-light { display: none; }

/* ---------- 深色配色（线上原来就有深浅色切换，11-10 用户要求加回来）。
   颜色大多走上面的变量；这里换变量，再把写死成白底的那些面改成深色的面。
   软件界面截图、三维图、报告封面是「画面」，深色下保持原样；首屏视频压暗一点，左边淡进深色里。 ---------- */
html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #070B18; --bg-rgb: 7, 11, 24;
  --ink: #EEF2FA; --ink-2: #A8B3CB; --ink-3: #7A869F; --line: rgba(255, 255, 255, .11);
  --navy: #9DBBFF; --navy-deep: #0D1634; --amber-ink: #F2C14E;
  --card: #0F1730;
}
html[data-theme="dark"] .btn--primary { background: #2B57C4; color: #fff; box-shadow: 0 10px 24px -10px rgba(0, 0, 0, .7); }
html[data-theme="dark"] .btn--primary:hover { background: #3766DA; }
html[data-theme="dark"] .btn--ghost { background: rgba(255, 255, 255, .06); color: var(--ink); border-color: rgba(255, 255, 255, .22); }
html[data-theme="dark"] .btn--ghost:hover { background: rgba(255, 255, 255, .12); border-color: rgba(255, 255, 255, .4); }
html[data-theme="dark"] .nav { background: rgba(13, 20, 42, .72); border-color: rgba(255, 255, 255, .08); }
html[data-theme="dark"] .nav.is-scrolled { background: rgba(13, 20, 42, .92); box-shadow: 0 10px 30px -18px rgba(0, 0, 0, .9); }
html[data-theme="dark"] .nav__links a:hover { background: rgba(255, 255, 255, .08); }
html[data-theme="dark"] .stage__media { background: #0B1020; filter: brightness(.74) saturate(.9); }
html[data-theme="dark"] .card, html[data-theme="dark"] .cards__note, html[data-theme="dark"] .sunchip { background: rgba(13, 20, 42, .74); border-color: rgba(255, 255, 255, .13); box-shadow: 0 18px 44px -18px rgba(0, 0, 0, .8); }
html[data-theme="dark"] .facts { background: rgba(9, 14, 30, .74); border-top-color: rgba(255, 255, 255, .1); }
html[data-theme="dark"] .xf__name i, html[data-theme="dark"] .pill { border-color: rgba(242, 193, 78, .45); }
html[data-theme="dark"] .after { box-shadow: 0 -30px 70px -30px rgba(0, 0, 0, .9); }
html[data-theme="dark"] .show__tab:hover { background: rgba(255, 255, 255, .05); }
html[data-theme="dark"] .show__tab.is-on,
html[data-theme="dark"] .show__panel,
html[data-theme="dark"] .tile,
html[data-theme="dark"] .cap,
html[data-theme="dark"] .cat,
html[data-theme="dark"] .form,
html[data-theme="dark"] .contact__ico,
html[data-theme="dark"] .hubx.is-live .hubsteps li.is-on { background: var(--card); }
html[data-theme="dark"] .show__kpi div,
html[data-theme="dark"] .unit code,
html[data-theme="dark"] .scope__note,
html[data-theme="dark"] .form input,
html[data-theme="dark"] .form textarea { background: rgba(255, 255, 255, .045); }
html[data-theme="dark"] .form input:focus, html[data-theme="dark"] .form textarea:focus { background: rgba(255, 255, 255, .08); }
html[data-theme="dark"] .show__win { border-color: rgba(255, 255, 255, .16); box-shadow: 0 50px 100px -40px rgba(0, 0, 0, .9); }
html[data-theme="dark"] .show__glow { opacity: .32; }
html[data-theme="dark"] .show__tab b { border-color: rgba(255, 255, 255, .28); }
html[data-theme="dark"] .show__kpi .chips span, html[data-theme="dark"] .stats__chips span { border-color: rgba(255, 255, 255, .25); }
html[data-theme="dark"] .tag { background: rgba(140, 170, 255, .13); }
html[data-theme="dark"] .tag--amber { background: rgba(251, 191, 36, .14); }
html[data-theme="dark"] .ln--soft { stroke: #55617D; }
html[data-theme="dark"] .hubring__rail { stroke: rgba(255, 255, 255, .2); }
html[data-theme="dark"] .hubx.is-live .hubring__nodes g:not(.is-on) circle { fill: var(--card); stroke: rgba(255, 255, 255, .28); }
html[data-theme="dark"] .form__sent { background: rgba(34, 160, 107, .16); color: #7FE0B5; }
html[data-theme="dark"] .contact__info a { border-bottom-color: rgba(157, 187, 255, .4); }
html[data-theme="dark"] .tile__pic--doc { border-color: transparent; }
@media (max-width: 1140px) {
  html[data-theme="dark"] .nav__links { background: rgba(13, 20, 42, .97); border-color: rgba(255, 255, 255, .1); }
}
@media (max-width: 899px) {
  html[data-theme="dark"] .cards { background: var(--card); }
  html[data-theme="dark"] .card, html[data-theme="dark"] .cards__note, html[data-theme="dark"] .sunchip { background: none; box-shadow: none; }
  html[data-theme="dark"] .facts { background: none; }
}

/* ---------- 跟着滚动走的一点动画（11-10 用户：「之前那种 fancy 的 scroll 动画完全一点也没有了，稍微加一点还是很酷」）。
   都不停住滚动：首屏被盖住的那一屏里，文字、浮卡、三维画面按各自的速度走（--c：0～1）；
   「功能」的大窗口和几块深色面板进屏幕时从后仰、略小慢慢立正（--t：0～1）。手机上和「减少动态效果」时不做。 ---------- */
.stage .hero { translate: 0 calc(var(--c, 0) * -110px); opacity: calc(1 - var(--c, 0) * 1.8); }
.stage .cards { translate: 0 calc(var(--c, 0) * -190px); opacity: calc(1 - var(--c, 0) * 1.5); }
.stage .xf, .stage .sunchip { translate: 0 calc(var(--c, 0) * -70px); opacity: calc(1 - var(--c, 0) * 2.2); }
.stage .facts { opacity: calc(1 - var(--c, 0) * 2.4); }
.stage .stage__media { scale: calc(1 + var(--c, 0) * .16); }
.show__win { transform-origin: 50% 100%; transform: perspective(1600px) rotateX(calc((1 - var(--t, 1)) * 16deg)) scale(calc(.9 + var(--t, 1) * .1)); will-change: transform; }
.sec--dark, .expo__in, .end__in { --t: 1; scale: calc(.94 + var(--t) * .06); }
@media (max-width: 899px), (prefers-reduced-motion: reduce) {
  .show__win { transform: none; }
  .sec--dark, .expo__in, .end__in { scale: none; }
}

/* 页脚里介绍团队的一句（原来「关于我们」那一屏去掉了，只留这句事实） */
.foot__about { margin: 10px 0 0 !important; max-width: 30em !important; font-size: 13px; line-height: 1.7; color: rgba(255, 255, 255, .5); }