/* 狐影科技 — 官网样式（foxyntech.com） */

:root {
  --orange: #f17201;
  --orange-deep: #e14a24;
  --sky: #2b6f95;
  --ink: #1d1d1f;
  --ink-2: #6e6e73;
  --ink-3: #86868b;
  --paper: #ffffff;
  --paper-2: #f5f5f7;
  --night: #000000;
  --night-2: #161617;
  --night-3: #1d1d1f;
  --line: rgba(0, 0, 0, .08);
  --radius: 28px;
  --wrap: 1120px;
  --nav-h: 52px;
  --ease: cubic-bezier(.22, .61, .36, 1);
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro SC", "PingFang SC",
          "Helvetica Neue", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: var(--nav-h); }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.47;
  letter-spacing: -.01em;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, p { margin: 0; }

.wrap { width: min(var(--wrap), 100% - 44px); margin-inline: auto; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 12px; top: 12px; z-index: 100; padding: 8px 14px; background: #fff; border-radius: 8px; }

/* ---------- 导航 ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  height: var(--nav-h);
  background: rgba(22, 22, 23, .72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  color: #f5f5f7;
}
.nav--light { background: rgba(255, 255, 255, .72); color: var(--ink); border-bottom: 1px solid var(--line); }
.nav__inner { height: 100%; display: flex; align-items: center; gap: 28px; }
.nav__brand { display: flex; align-items: center; gap: 10px; font-size: 15px; font-weight: 600; margin-right: auto; }
.nav__brand img, .nav__brand svg { width: 26px; height: 26px; border-radius: 7px; flex: none; }
.nav__brand small { font-size: 11px; font-weight: 400; opacity: .6; letter-spacing: .02em; }
.nav--static { position: relative; }
.nav__links { display: flex; align-items: center; gap: 28px; font-size: 13px; }
.nav__links a { opacity: .8; transition: opacity .2s; }
.nav__links a:hover, .nav__links a[aria-current] { opacity: 1; }
.nav__cta {
  font-size: 12px; font-weight: 500;
  padding: 5px 13px; border-radius: 980px;
  background: var(--orange); color: #fff !important; opacity: 1 !important;
}
.nav__toggle { display: none; }

@media (max-width: 760px) {
  .nav__toggle {
    display: grid; place-items: center;
    width: 36px; height: 36px; margin-right: -8px;
    background: none; border: 0; color: inherit; cursor: pointer;
  }
  .nav__toggle span, .nav__toggle span::before {
    display: block; width: 17px; height: 1.5px; background: currentColor;
    transition: transform .3s var(--ease);
  }
  .nav__toggle span { position: relative; transform: translateY(-3px); }
  .nav__toggle span::before { content: ""; position: absolute; top: 7px; }
  .nav.is-open .nav__toggle span { transform: rotate(45deg); }
  .nav.is-open .nav__toggle span::before { transform: translateY(-7px) rotate(-90deg); }
  .nav__links {
    position: absolute; top: var(--nav-h); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    padding: 8px 22px 24px;
    background: inherit;
    backdrop-filter: inherit; -webkit-backdrop-filter: inherit;
    font-size: 17px;
    visibility: hidden; opacity: 0; transform: translateY(-8px);
    transition: opacity .3s var(--ease), transform .3s var(--ease), visibility .3s;
  }
  .nav--dark-menu .nav__links { background: #161617; }
  .nav--light .nav__links { background: #fff; }
  .nav.is-open .nav__links { visibility: visible; opacity: 1; transform: none; }
  .nav__links a { padding: 12px 0; border-bottom: 1px solid rgba(128, 128, 128, .2); }
  .nav__cta { margin-top: 16px; text-align: center; padding: 12px; font-size: 15px; border: 0 !important; }
}

/* ---------- 通用排版 ---------- */
.eyebrow {
  display: inline-block;
  font-size: 21px; font-weight: 600; letter-spacing: 0;
  color: var(--orange);
  margin-bottom: 10px;
}
.headline {
  font-size: clamp(40px, 6.4vw, 80px);
  line-height: 1.05; font-weight: 700; letter-spacing: -.02em;
}
.title {
  font-size: clamp(32px, 4.6vw, 56px);
  line-height: 1.08; font-weight: 700; letter-spacing: -.015em;
}
.lead {
  font-size: clamp(19px, 2vw, 24px);
  line-height: 1.4; font-weight: 500;
  color: var(--ink-2);
}
.dark { background: var(--night); color: #f5f5f7; }
.dark .lead { color: #a1a1a6; }
.gray { background: var(--paper-2); }
.center { text-align: center; }
.nowrap { white-space: nowrap; }

.grad-text {
  background: linear-gradient(100deg, #ffb35a 0%, #f17201 38%, #e14a24 60%, #3b8fbf 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 12px 24px; border-radius: 980px;
  font-size: 17px; font-weight: 500;
  background: var(--orange); color: #fff;
  transition: background .2s, transform .2s;
}
.btn:hover { background: #d96600; }
.btn:active { transform: scale(.98); }
.link {
  display: inline-flex; align-items: center; gap: 2px;
  font-size: 17px; color: #0071e3;
}
.dark .link { color: #2997ff; }
.link::after { content: "›"; font-size: 1.25em; line-height: 1; transform: translateY(-1px); }
.link:hover { text-decoration: underline; }

/* ---------- 手机外框 ---------- */
.phone {
  position: relative;
  width: var(--pw, 300px);
  aspect-ratio: 1280 / 2781;
  padding: calc(var(--pw, 300px) * .035);
  border-radius: calc(var(--pw, 300px) * .16);
  background: linear-gradient(145deg, #3a3a3c, #0b0b0c 45%, #2c2c2e);
  box-shadow:
    inset 0 0 0 1.5px rgba(255, 255, 255, .14),
    0 40px 80px -30px rgba(0, 0, 0, .55),
    0 18px 36px -18px rgba(0, 0, 0, .4);
  flex: none;
}
.phone picture, .phone img {
  width: 100%; height: 100%;
  border-radius: calc(var(--pw, 300px) * .13);
  object-fit: cover;
}
.phone::after { /* 灵动岛 */
  content: "";
  position: absolute; top: calc(var(--pw, 300px) * .06); left: 50%;
  width: 30%; height: calc(var(--pw, 300px) * .085);
  transform: translateX(-50%);
  border-radius: 99px; background: #000;
}

/* ---------- 首屏 ---------- */
.hero {
  position: relative; overflow: hidden;
  padding: clamp(56px, 9vw, 110px) 0 0;
  background:
    radial-gradient(120% 70% at 50% 0%, #2a1a0e 0%, rgba(0, 0, 0, 0) 60%),
    linear-gradient(180deg, #0b0b0c 0%, #000 100%);
  color: #f5f5f7; text-align: center;
}
.hero__logo {
  width: 84px; height: 84px; margin: 0 auto 22px;
  border-radius: 20px;
  box-shadow: 0 10px 30px -8px rgba(241, 114, 1, .6);
}
.hero__name { font-size: clamp(22px, 2.4vw, 28px); font-weight: 600; margin-bottom: 8px; }
.hero .headline { max-width: 13em; margin-inline: auto; }
.hero .lead { max-width: 30em; margin: 20px auto 0; }
.hero__actions { display: flex; justify-content: center; align-items: center; gap: 28px; margin-top: 34px; flex-wrap: wrap; }
.hero__stage {
  position: relative;
  display: flex; justify-content: center; align-items: flex-end;
  margin-top: clamp(48px, 7vw, 80px);
  height: clamp(420px, 60vw, 640px);
}
.hero__glow {
  position: absolute; left: 50%; bottom: -30%;
  width: min(1100px, 140vw); aspect-ratio: 1;
  transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(241, 114, 1, .55), rgba(225, 74, 36, .25) 45%, rgba(43, 111, 149, .15) 70%, transparent);
  filter: blur(20px);
  pointer-events: none;
}
.hero__phones { position: relative; display: flex; align-items: flex-end; gap: clamp(12px, 3vw, 40px); }
.hero__phones .phone { --pw: clamp(210px, 26vw, 320px); transform: translateY(8%); }
.hero__phones .phone--side { --pw: clamp(160px, 20vw, 250px); opacity: .9; transform: translateY(22%); }
@media (max-width: 640px) {
  .hero__phones .phone--side { display: none; }
  .hero__stage { height: auto; padding-bottom: 0; }
  .hero__phones .phone { --pw: 240px; transform: none; margin-bottom: -150px; }
  .hero__stage { margin-top: 44px; }
}

/* ---------- 大数字 ---------- */
.number { padding: clamp(100px, 14vw, 180px) 0; }
.number__value {
  font-size: clamp(88px, 17vw, 220px);
  line-height: 1; font-weight: 700; letter-spacing: -.04em;
  font-variant-numeric: tabular-nums;
}
.number__value small { font-size: .32em; letter-spacing: 0; margin-left: .1em; }
.number__caption { margin-top: 18px; }
.stats {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px; margin-top: clamp(64px, 8vw, 100px);
}
.stat { padding-top: 22px; border-top: 1px solid rgba(255, 255, 255, .16); text-align: left; }
.stat__num { font-size: clamp(34px, 4vw, 48px); font-weight: 700; letter-spacing: -.02em; }
.stat__num span { font-size: .5em; margin-left: 4px; color: #a1a1a6; }
.stat__label { color: #a1a1a6; font-size: 15px; margin-top: 4px; }
@media (max-width: 640px) { .stats { grid-template-columns: 1fr; } }

/* ---------- 功能区 ---------- */
.feature { padding: clamp(90px, 12vw, 160px) 0; overflow: hidden; }
.feature__grid {
  display: grid; grid-template-columns: 1fr auto;
  align-items: center; gap: clamp(40px, 7vw, 110px);
}
.feature--flip .feature__grid { grid-template-columns: auto 1fr; }
.feature--flip .feature__media { order: -1; }
.feature__media .phone { --pw: clamp(240px, 26vw, 320px); }
.feature .lead { margin-top: 20px; max-width: 24em; }
.feature__list { list-style: none; padding: 0; margin: 34px 0 0; display: grid; gap: 18px; }
.feature__list li { display: grid; grid-template-columns: 28px 1fr; gap: 12px; color: var(--ink-2); }
.dark .feature__list li { color: #a1a1a6; }
.feature__list b { display: block; color: var(--ink); font-weight: 600; }
.dark .feature__list b { color: #f5f5f7; }
.feature__list svg { width: 24px; height: 24px; color: var(--orange); margin-top: 1px; }
@media (max-width: 820px) {
  .feature__grid, .feature--flip .feature__grid { grid-template-columns: 1fr; text-align: center; }
  .feature--flip .feature__media { order: 0; }
  .feature__media { display: flex; justify-content: center; }
  .feature .lead { margin-inline: auto; }
  .feature__list { text-align: left; max-width: 26em; margin-inline: auto; }
}

/* ---------- Bento ---------- */
.bento { padding: clamp(90px, 12vw, 150px) 0; }
.bento__grid {
  display: grid; grid-template-columns: repeat(6, 1fr);
  gap: 20px; margin-top: 56px;
}
.tile {
  grid-column: span 2;
  position: relative; overflow: hidden;
  min-height: 280px;
  padding: 34px 32px;
  border-radius: var(--radius);
  background: #fff;
  display: flex; flex-direction: column;
}
.tile--wide { grid-column: span 3; }
.tile--dark { background: var(--night-3); color: #f5f5f7; }
.tile--sunset { background: linear-gradient(180deg, #f0ae83 0%, #ea5a2c 55%, #2b6f95 100%); color: #fff; }
.tile__icon { width: 40px; height: 40px; color: var(--orange); margin-bottom: auto; }
.tile--sunset .tile__icon, .tile--dark .tile__icon { color: currentColor; }
.tile__big { font-size: clamp(48px, 5.6vw, 72px); font-weight: 700; letter-spacing: -.03em; line-height: 1; margin-bottom: auto; }
.tile__big small { font-size: .4em; margin-left: 4px; }
.tile h3 { font-size: 24px; line-height: 1.2; font-weight: 700; margin-top: 28px; }
.tile p { margin-top: 8px; color: var(--ink-2); font-size: 17px; }
.tile--dark p { color: #a1a1a6; }
.tile--sunset p { color: rgba(255, 255, 255, .85); }
@media (max-width: 900px) {
  .tile, .tile--wide { grid-column: span 3; }
}
@media (max-width: 600px) {
  .bento__grid { grid-template-columns: 1fr; }
  .tile, .tile--wide { grid-column: auto; min-height: 220px; }
}

/* ---------- 截图长廊 ---------- */
.gallery { padding: clamp(90px, 12vw, 150px) 0 clamp(70px, 9vw, 110px); overflow: hidden; }
.gallery__track {
  display: flex; gap: clamp(20px, 3vw, 36px);
  margin-top: 56px;
  padding: 10px max(22px, (100vw - var(--wrap)) / 2) 60px;
  overflow-x: auto; scroll-snap-type: x mandatory;
  scrollbar-width: none;
}
.gallery__track::-webkit-scrollbar { display: none; }
.gallery__item { scroll-snap-align: center; flex: none; text-align: center; }
.gallery__item .phone { --pw: clamp(220px, 22vw, 270px); }
.gallery__item figcaption { margin-top: 22px; font-size: 17px; font-weight: 600; }
.gallery__item figcaption span { display: block; font-size: 14px; font-weight: 400; color: #a1a1a6; margin-top: 2px; }

/* ---------- 隐私 ---------- */
.privacy { padding: clamp(100px, 13vw, 170px) 0; }
.privacy__icon { width: 72px; height: 72px; margin: 0 auto 26px; color: var(--orange); }
.privacy .lead { max-width: 30em; margin: 20px auto 0; }
.privacy__links {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 16px; max-width: 900px; margin: 56px auto 0;
}
.privacy__links a {
  padding: 22px 18px; border-radius: 18px;
  background: #fff; text-align: left;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.privacy__links a:hover { transform: translateY(-3px); box-shadow: 0 14px 30px -14px rgba(0, 0, 0, .2); }
.privacy__links b { display: block; font-size: 17px; }
.privacy__links span { font-size: 14px; color: var(--ink-3); }
@media (max-width: 760px) { .privacy__links { grid-template-columns: 1fr 1fr; } }

/* ---------- 下载 ---------- */
.download { padding: clamp(100px, 13vw, 170px) 0; overflow: hidden; }
.download__card {
  display: grid; grid-template-columns: 1fr auto;
  gap: 48px; align-items: center;
  max-width: 920px; margin: 0 auto;
  padding: clamp(36px, 5vw, 64px);
  border-radius: 36px;
  background: linear-gradient(135deg, #1d1d1f 0%, #111 100%);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .08);
}
.download__card .lead { margin-top: 16px; }
.download__stores { margin-top: 28px; font-size: 15px; color: #a1a1a6; line-height: 1.7; }
.download__stores b { color: #f5f5f7; font-weight: 600; }
.qr {
  width: 220px; padding: 16px 16px 14px;
  border-radius: 24px; background: #fff; color: var(--ink);
  text-align: center;
}
.qr img { width: 188px; height: 188px; }
.qr p { margin-top: 8px; font-size: 13px; color: var(--ink-2); }
@media (max-width: 720px) {
  .download__card { grid-template-columns: 1fr; text-align: center; justify-items: center; }
}

/* ---------- 页脚 ---------- */
.footer { background: var(--paper-2); color: var(--ink-2); font-size: 12px; line-height: 1.6; padding: 40px 0 28px; }
.footer__top { display: flex; justify-content: space-between; gap: 32px; flex-wrap: wrap; padding-bottom: 22px; border-bottom: 1px solid #d2d2d7; }
.footer__brand { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--ink); font-weight: 600; }
.footer__brand img, .footer__brand svg { width: 30px; height: 30px; border-radius: 8px; flex: none; }
.footer__brand span { display: block; font-weight: 400; font-size: 12px; color: var(--ink-3); }
.footer__cols { display: flex; gap: 56px; flex-wrap: wrap; }
.footer__cols h4 { margin: 0 0 8px; font-size: 12px; color: var(--ink); font-weight: 600; }
.footer__cols ul { list-style: none; margin: 0; padding: 0; }
.footer__cols li { margin: 5px 0; }
.footer a:hover { color: var(--ink); text-decoration: underline; }
.footer__bottom { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding-top: 16px; }

/* ---------- 关于页 ---------- */
.page-hero { padding: clamp(90px, 12vw, 150px) 0 clamp(60px, 8vw, 100px); text-align: center; }
.page-hero .lead { max-width: 30em; margin: 22px auto 0; }
.values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.values .tile { grid-column: auto; min-height: 240px; }
@media (max-width: 820px) { .values { grid-template-columns: 1fr; } }
.facts { max-width: 760px; margin: 0 auto; border-radius: var(--radius); background: var(--paper-2); padding: 8px 32px; }
.facts div { display: grid; grid-template-columns: 9em 1fr; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.facts div:last-child { border-bottom: 0; }
.facts dt { color: var(--ink-3); }
.facts dd { margin: 0; font-weight: 500; }
.facts a { color: #0071e3; }
@media (max-width: 560px) { .facts div { grid-template-columns: 1fr; gap: 2px; } }

/* ---------- 404 ---------- */
.notfound { min-height: calc(100vh - var(--nav-h) - 160px); display: grid; place-items: center; text-align: center; padding: 80px 0; }
.notfound__code { font-size: clamp(96px, 18vw, 200px); font-weight: 700; letter-spacing: -.05em; line-height: 1; }

/* ---------- 产品子导航（仿 Apple 产品页） ---------- */
.subnav {
  position: sticky; top: 0; z-index: 49;
  height: var(--nav-h);
  background: rgba(22, 22, 23, .8);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, .1);
  color: #f5f5f7;
}
.subnav__inner { height: 100%; display: flex; align-items: center; gap: 24px; }
.subnav__title { display: flex; align-items: center; gap: 8px; margin-right: auto; font-size: 19px; font-weight: 600; }
.subnav__title img { width: 24px; height: 24px; border-radius: 6px; }
.subnav__links { display: flex; align-items: center; gap: 24px; font-size: 12px; }
.subnav__links a:not(.nav__cta) { opacity: .8; transition: opacity .2s; }
.subnav__links a:not(.nav__cta):hover { opacity: 1; }
@media (max-width: 640px) {
  .subnav__title { font-size: 17px; }
  .subnav__links a:not(.nav__cta) { display: none; }
}

/* ---------- 按钮补充 ---------- */
.btn--ghost { background: transparent; color: var(--orange); box-shadow: inset 0 0 0 1px currentColor; }
.btn--ghost:hover { background: var(--orange); color: #fff; }
.dark .btn--ghost, .on-photo .btn--ghost { color: #fff; }
.dark .btn--ghost:hover, .on-photo .btn--ghost:hover { background: #fff; color: var(--ink); }
.btn-row { display: flex; justify-content: center; align-items: center; gap: 16px; flex-wrap: wrap; }

/* ---------- 首页：公司首屏 ---------- */
.home-hero {
  position: relative; overflow: hidden;
  min-height: min(92vh, 860px);
  display: grid; align-items: center;
  padding: clamp(90px, 12vw, 140px) 0;
  background: #0b0b0c center / cover no-repeat;
  background-image: image-set(url("/assets/img/home-hero.webp") type("image/webp"), url("/assets/img/home-hero.jpg") type("image/jpeg"));
  color: #f5f5f7; text-align: center;
}
@media (max-width: 760px) {
  .home-hero { background-image: image-set(url("/assets/img/home-hero-sm.webp") type("image/webp"), url("/assets/img/home-hero.jpg") type("image/jpeg")); }
}
.home-hero::before {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(0, 0, 0, .55) 0%, rgba(0, 0, 0, .25) 40%, rgba(0, 0, 0, .7) 100%),
    radial-gradient(80% 60% at 50% 45%, rgba(0, 0, 0, .35), transparent 70%);
}
.home-hero .wrap { position: relative; }
.home-hero__logo { width: 76px; height: 76px; margin: 0 auto 22px; border-radius: 18px; box-shadow: 0 12px 34px -10px rgba(232, 98, 44, .7); }
.home-hero__name { font-size: clamp(19px, 2vw, 24px); font-weight: 600; letter-spacing: .02em; margin-bottom: 10px; }
.home-hero__name span { opacity: .65; font-weight: 400; margin-left: .4em; }
.home-hero .headline { max-width: 12em; margin-inline: auto; text-shadow: 0 2px 30px rgba(0, 0, 0, .35); }
.home-hero .lead { max-width: 30em; margin: 22px auto 0; color: rgba(245, 245, 247, .82); }
.home-hero .btn-row { margin-top: 36px; }
.home-hero__scroll {
  position: absolute; left: 50%; bottom: 28px; transform: translateX(-50%);
  font-size: 12px; letter-spacing: .2em; color: rgba(255, 255, 255, .6);
}

/* ---------- 首页：产品大卡（仿 apple.com） ---------- */
.promos { display: grid; gap: 12px; padding: 12px 0; background: #fff; }
.promo {
  position: relative; overflow: hidden;
  padding: clamp(52px, 6vw, 64px) 0 0;
  text-align: center;
}
.promo__icon { width: 64px; height: 64px; margin: 0 auto 16px; border-radius: 15px; }
.promo__name { font-size: clamp(36px, 5vw, 56px); line-height: 1.07; font-weight: 700; letter-spacing: -.015em; }
.promo__tag { margin-top: 6px; font-size: clamp(21px, 2.4vw, 28px); font-weight: 500; line-height: 1.2; }
.promo__desc { max-width: 34em; margin: 12px auto 0; font-size: 17px; color: var(--ink-2); }
.dark .promo__desc { color: #a1a1a6; }
.promo .btn-row { margin-top: 22px; }
.promo .btn { font-size: 15px; padding: 9px 20px; }
.promo__stage {
  position: relative;
  display: flex; justify-content: center; align-items: flex-start;
  height: clamp(340px, 44vw, 520px);
  margin-top: clamp(40px, 5vw, 56px);
}
.promo__glow {
  position: absolute; left: 50%; top: 18%;
  width: min(1000px, 130vw); aspect-ratio: 1.6;
  transform: translateX(-50%);
  border-radius: 50%;
  filter: blur(30px); pointer-events: none;
}
.promo--altitude { background: var(--paper-2); }
.promo--altitude .promo__glow { background: radial-gradient(closest-side, rgba(241, 114, 1, .35), rgba(225, 74, 36, .14) 50%, transparent); }
.promo--peak { background: #000; color: #f5f5f7; }
.promo--peak .promo__glow { background: radial-gradient(closest-side, rgba(63, 167, 214, .38), rgba(43, 111, 149, .16) 50%, transparent); }
.promo__phones { position: relative; display: flex; align-items: flex-start; gap: clamp(12px, 2.6vw, 32px); }
.promo__phones .phone { --pw: clamp(200px, 24vw, 290px); transition: transform 1.2s var(--ease); }
.promo__phones .phone--side { --pw: clamp(150px, 18vw, 230px); margin-top: 12%; opacity: .92; }
.promo:hover .promo__phones .phone:not(.phone--side) { transform: translateY(-10px); }
@media (max-width: 640px) {
  .promo__phones .phone--side { display: none; }
  .promo__stage { height: 380px; }
  .promo__phones .phone { --pw: 230px; }
}

/* ---------- 首页：小卡片网格 ---------- */
.tiles { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; padding: 0 12px 12px; background: #fff; }
.ptile {
  position: relative; overflow: hidden;
  min-height: 580px;
  padding: 52px 28px 0;
  text-align: center;
  background: var(--paper-2);
  display: flex; flex-direction: column; align-items: center;
}
.ptile.dark { background: var(--night-3); }
.ptile--sunset { background: linear-gradient(180deg, #f0ae83 0%, #ea5a2c 55%, #2b6f95 100%); color: #fff; }
.ptile--sky { background: linear-gradient(180deg, #0e2232 0%, #12384f 55%, #1d5677 100%); color: #f5f5f7; }
.ptile__kicker { font-size: 14px; font-weight: 600; color: var(--orange); letter-spacing: .02em; }
.ptile--sunset .ptile__kicker, .ptile--sky .ptile__kicker { color: rgba(255, 255, 255, .8); }
.ptile h3 { margin-top: 8px; font-size: clamp(28px, 3.4vw, 40px); line-height: 1.1; font-weight: 700; letter-spacing: -.01em; }
.ptile p { max-width: 22em; margin-top: 10px; font-size: 17px; color: var(--ink-2); }
.ptile.dark p { color: #a1a1a6; }
.ptile--sunset p, .ptile--sky p { color: rgba(255, 255, 255, .82); }
.ptile .link { margin-top: 14px; }
.ptile--sunset .link, .ptile--sky .link { color: #fff; }
.ptile__media { margin-top: auto; padding-top: 36px; }
.ptile__media .phone { --pw: clamp(200px, 20vw, 250px); margin-bottom: -38%; }
.ptile__big { margin: auto 0; padding: 36px 0 60px; font-size: clamp(88px, 12vw, 150px); line-height: 1; font-weight: 700; letter-spacing: -.04em; }
.ptile__big small { font-size: .3em; letter-spacing: 0; margin-left: .1em; }
@media (max-width: 760px) {
  .tiles { grid-template-columns: 1fr; }
  .ptile { min-height: 500px; }
}

/* ---------- 首页：关于 & 联系 ---------- */
.home-about { padding: clamp(90px, 12vw, 150px) 0; }
.home-about .lead { max-width: 32em; margin: 20px auto 0; }
.home-about .values { margin-top: 56px; text-align: left; }
.home-about .values .tile { background: var(--paper-2); }
.contact-band { padding: clamp(70px, 9vw, 110px) 0; text-align: center; }
.contact-band .title { font-size: clamp(28px, 3.6vw, 44px); }
.contact-band .lead { margin: 14px auto 0; max-width: 28em; }
.contact-band .btn-row { margin-top: 30px; }

/* ---------- 产品页：多平台协议链接 ---------- */
.legal-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; max-width: 900px; margin: 56px auto 0; text-align: left; }
.legal-grid > div { padding: 22px 22px 18px; border-radius: 18px; background: #fff; }
.legal-grid b { display: block; font-size: 17px; margin-bottom: 8px; }
.legal-grid a { display: block; padding: 4px 0; font-size: 15px; color: #0071e3; }
.legal-grid a:hover { text-decoration: underline; }
@media (max-width: 760px) { .legal-grid { grid-template-columns: 1fr; } }

/* ---------- 产品页：识山模式 ---------- */
.modes { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(20px, 3vw, 40px); justify-items: center; margin-top: 64px; }
.modes figure { margin: 0; text-align: center; }
.modes .phone { --pw: clamp(200px, 24vw, 280px); }
.modes figcaption { margin-top: 24px; font-size: 19px; font-weight: 600; }
.modes figcaption span { display: block; max-width: 15em; margin: 4px auto 0; font-size: 15px; font-weight: 400; color: #a1a1a6; }
@media (max-width: 820px) {
  .modes { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; padding: 0 22px 20px; margin-inline: -22px; justify-content: flex-start; }
  .modes::-webkit-scrollbar { display: none; }
  .modes figure { scroll-snap-align: center; flex: none; }
}
.download__card--solo { grid-template-columns: 1fr auto; }
.download__icon { width: 160px; height: 160px; border-radius: 36px; box-shadow: 0 20px 50px -16px rgba(241, 114, 1, .6); }
@media (max-width: 720px) { .download__icon { width: 120px; height: 120px; border-radius: 27px; } }

/* ---------- 山峰发现：配色 ---------- */
.grad-text--sky { background-image: linear-gradient(100deg, #b5ecff 0%, #5cc0ec 40%, #3fa7d6 65%, #2b7fb0 100%); }
.hero--peak { background: radial-gradient(120% 70% at 50% 0%, #0d2433 0%, rgba(0, 0, 0, 0) 60%), linear-gradient(180deg, #0b0b0c 0%, #000 100%); }
.hero--peak .hero__logo { box-shadow: 0 10px 30px -8px rgba(241, 114, 1, .55); }
.hero--peak .hero__glow { background: radial-gradient(closest-side, rgba(63, 167, 214, .5), rgba(43, 111, 149, .25) 45%, rgba(43, 111, 149, .1) 70%, transparent); }
.stats--light .stat { border-top-color: var(--line); }
.stats--light .stat__label, .stats--light .stat__num span { color: var(--ink-2); }
.tile--sky { background: linear-gradient(180deg, #12384f 0%, #1d5677 55%, #3fa7d6 100%); color: #fff; }
.tile--sky .tile__icon { color: currentColor; }
.tile--sky p { color: rgba(255, 255, 255, .85); }
.legal-grid--gray > div { background: var(--paper-2); }

/* ---------- 动效 ---------- */
.reveal { opacity: 0; transform: translateY(40px); transition: opacity 1s var(--ease), transform 1s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .12s; }
.reveal[data-delay="2"] { transition-delay: .24s; }
.reveal[data-delay="3"] { transition-delay: .36s; }
.no-js .reveal { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  * { animation: none !important; }
}