/* ============================================================
   融讯伟业 · 官网新站 设计系统
   Theme: Corporate Red（红白商务风）
   主色 #d50b25 + 白底正文，顶部导航与页脚同为品牌红底白字（首尾呼应）
   ============================================================ */

/* ---------- Design Tokens ---------- */
:root {
  --bg: #ffffff;
  --bg-soft: #faf8f7;
  --bg-soft-2: #f5f2f1;
  --surface: #ffffff;
  --surface-2: #faf7f6;
  --border: rgba(40, 22, 25, .10);
  --border-strong: rgba(213, 11, 37, .28);

  --text: #1a1a1a;
  --text-dim: #555555;
  --text-mute: #989898;

  --brand: #d50b25;
  --brand-2: #e8354b;
  --brand-3: #a3081b;
  --accent: #d50b25;

  --grad-brand: linear-gradient(120deg, #e8354b 0%, #d50b25 55%, #a3081b 100%);
  --grad-soft: linear-gradient(120deg, rgba(213, 11, 37, .08), rgba(213, 11, 37, .04));
  --grad-line: linear-gradient(90deg, transparent, rgba(213, 11, 37, .45), transparent);

  --shadow-sm: 0 4px 16px -8px rgba(60, 20, 26, .18);
  --shadow: 0 16px 40px -20px rgba(60, 20, 26, .22);
  --shadow-lg: 0 26px 60px -28px rgba(60, 20, 26, .28);
  --glow: 0 12px 30px -12px rgba(213, 11, 37, .55);

  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;

  --maxw: 1240px;
  --nav-h: 72px;

  --font: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", -apple-system,
    BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

/* ---------- Base ---------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* 环境背景：淡红光晕 + 极淡网格
   注意 z-index 分层（负值栈，全部在内容之下）：
     -7 body::before 底色水洗   -6 .fx-ambient 漂移光晕
     -5 body::after  网格       -4 区块底色（.section--soft / .page-hero）
     -3 .fx-particles 全域粒子  ← 粒子要压在区块底色之上才能全页可见
   所以「区块底色」不能写成元素自身的 background（那属于正常流，会盖住粒子），
   必须下沉成 z-index:-4 的伪元素。 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -7;
  background:
    radial-gradient(760px 520px at 8% -6%, rgba(213, 11, 37, .055), transparent 62%),
    radial-gradient(680px 480px at 96% 4%, rgba(213, 11, 37, .045), transparent 62%),
    radial-gradient(900px 600px at 60% 108%, rgba(163, 8, 27, .035), transparent 60%),
    linear-gradient(180deg, #ffffff, #fdfaf9 60%, #ffffff);
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -5;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(213, 11, 37, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(213, 11, 37, .035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(circle at 50% 12%, rgba(0,0,0,.85), transparent 78%);
  -webkit-mask-image: radial-gradient(circle at 50% 12%, rgba(0,0,0,.85), transparent 78%);
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
h1, h2, h3, h4 { margin: 0; font-weight: 700; letter-spacing: -.01em; color: var(--text); }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }

::selection { background: rgba(213, 11, 37, .16); color: #1a1a1a; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: #f2efee; }
::-webkit-scrollbar-thumb { background: #d9d1cf; border-radius: 20px; border: 2px solid #f2efee; }
::-webkit-scrollbar-thumb:hover { background: #c2b7b4; }

/* ---------- Layout ---------- */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section { padding: 64px 0; position: relative; }
.section--tight { padding: 40px 0; }
/* 浅色区带：底色下沉到 ::after（z-index:-4），粒子层才能浮在它之上；
   ::before 保留给顶边那道光流 */
.section--soft { position: relative; }
.section--soft::after {
  content: ""; position: absolute; inset: 0; z-index: -4; background: var(--bg-soft);
}
.center { text-align: center; }

.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  margin: 0 auto;
  max-width: var(--maxw);
}

/* ---------- Section head ---------- */
.sec-head { max-width: 720px; margin: 0 auto 36px; text-align: center; }
.sec-head--left { margin-left: 0; text-align: left; }
.sec-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--brand);
  padding: 6px 14px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: #fff;
  box-shadow: var(--shadow-sm);
  margin-bottom: 20px;
}
.sec-eyebrow::before {
  content: "";
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--brand);
}
.sec-title { font-size: clamp(26px, 3.4vw, 42px); line-height: 1.2; margin-bottom: 16px; }
.sec-title .hl {
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.sec-sub { color: var(--text-dim); font-size: 16px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 48px;
  padding: 0 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: .25s ease;
  white-space: nowrap;
  position: relative;
  font-family: inherit;
}
.btn--primary { background: var(--grad-brand); color: #fff; box-shadow: var(--glow); }
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 18px 40px -14px rgba(213, 11, 37, .6); }
.btn--ghost { border-color: var(--border); color: var(--text); background: #fff; box-shadow: var(--shadow-sm); }
.btn--ghost:hover { border-color: var(--border-strong); color: var(--brand); transform: translateY(-2px); }
.btn--sm { height: 40px; padding: 0 18px; font-size: 14px; }
.btn__arrow { transition: transform .25s ease; }
.btn:hover .btn__arrow { transform: translateX(4px); }

/* ---------- Card ---------- */
.glass { background: #fff; border: 1px solid var(--border); border-radius: var(--r-lg); box-shadow: var(--shadow); }
.card {
  position: relative;
  padding: 28px;
  border-radius: var(--r-md);
  background: #fff;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: .3s ease;
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--grad-brand);
  opacity: 0;
  transition: opacity .3s ease;
}
.card:hover { transform: translateY(-6px); border-color: var(--border-strong); box-shadow: var(--shadow-lg); }
.card:hover::before { opacity: 1; }

/* ---------- Grid ---------- */
.grid { display: grid; gap: 22px; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.grid--5 { grid-template-columns: repeat(5, 1fr); }

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: .3s ease;
  background: var(--brand);
  border-bottom: 1px solid transparent;
}
.nav--solid {
  background: var(--brand);
  border-bottom-color: rgba(255, 255, 255, .16);
  box-shadow: 0 10px 30px -18px rgba(0, 0, 0, .45);
}
.nav__inner { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; display: flex; align-items: center; gap: 20px; }
.nav__logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.nav__logo img { height: 34px; width: auto; }

.nav__menu { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav__item { position: relative; }
.nav__link {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 10px 16px; border-radius: 10px;
  font-size: 15px; color: rgba(255, 255, 255, .88); cursor: pointer; transition: .2s ease;
}
.nav__link:hover { color: #fff; background: rgba(255, 255, 255, .14); }
.nav__link.is-active { color: #fff; font-weight: 600; }
.nav__link.is-active::after {
  content: ""; position: absolute; left: 16px; right: 16px; bottom: 2px;
  height: 2px; border-radius: 2px; background: #fff;
}
.nav__caret {
  width: 9px; height: 9px;
  border-right: 1.6px solid currentColor; border-bottom: 1.6px solid currentColor;
  transform: rotate(45deg) translate(-1px, -1px); transition: transform .25s ease; opacity: .7;
}
.nav__item:hover .nav__caret { transform: rotate(225deg) translate(-3px, -1px); }
.nav__drop {
  position: absolute; top: calc(100% + 12px); left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 220px; padding: 10px; border-radius: var(--r-md);
  background: #fff; border: 1px solid var(--border);
  box-shadow: 0 26px 50px -26px rgba(60, 20, 26, .4);
  opacity: 0; visibility: hidden; transition: .25s ease;
}
.nav__item:hover .nav__drop { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.nav__drop a {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 14px; border-radius: 10px; font-size: 14.5px; color: var(--text-dim); transition: .2s ease;
}
.nav__drop a::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--brand); opacity: .45; transition: .2s ease;
}
.nav__drop a:hover { background: var(--surface-2); color: var(--brand); }
.nav__drop a:hover::before { opacity: 1; }

.nav__actions { display: flex; align-items: center; gap: 12px; margin-left: 14px; }
.lang {
  display: flex; align-items: center; gap: 2px; padding: 4px;
  border-radius: 999px; border: 1px solid rgba(255, 255, 255, .35); background: rgba(255, 255, 255, .14); font-size: 13px;
}
.lang a { padding: 5px 12px; border-radius: 999px; color: rgba(255, 255, 255, .82); transition: .2s ease; }
.lang a:hover { color: #fff; }
.lang a.is-active { background: #fff; color: var(--brand); font-weight: 600; }

/* 红底导航上的主按钮反白 */
.nav__actions .btn--primary {
  background: #fff; color: var(--brand);
  box-shadow: 0 8px 18px -10px rgba(0, 0, 0, .55);
}
.nav__actions .btn--primary:hover { background: #fff; color: var(--brand); box-shadow: 0 12px 26px -10px rgba(0, 0, 0, .6); }

.nav__burger {
  display: none; width: 44px; height: 44px; border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, .35); background: rgba(255, 255, 255, .12); cursor: pointer;
  margin-left: auto; position: relative;
}
.nav__burger span, .nav__burger span::before, .nav__burger span::after {
  content: ""; position: absolute; left: 50%; top: 50%;
  width: 18px; height: 2px; background: #fff; border-radius: 2px;
  transform: translate(-50%, -50%); transition: .25s ease;
}
.nav__burger span::before { top: -6px; }
.nav__burger span::after { top: 6px; }
.nav.is-open .nav__burger span { background: transparent; }
.nav.is-open .nav__burger span::before { top: 0; transform: rotate(45deg); }
.nav.is-open .nav__burger span::after { top: 0; transform: rotate(-45deg); }

/* ============================================================
   HERO
   ============================================================ */
.hero { position: relative; padding: calc(var(--nav-h) + 36px) 0 44px; overflow: hidden; }
.hero__inner { position: relative; z-index: 2; }
.hero__eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-size: 12.5px; letter-spacing: .2em;
  text-transform: uppercase; color: var(--brand);
  padding: 8px 16px; border-radius: 999px;
  border: 1px solid var(--border-strong); background: #fff; box-shadow: var(--shadow-sm);
  margin-bottom: 26px;
}
.hero__eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .35; } }

.hero__title { font-size: clamp(34px, 5.6vw, 64px); line-height: 1.12; letter-spacing: -.02em; margin-bottom: 22px; }
.hero__title .grad { background: var(--grad-brand); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero__desc { max-width: 640px; font-size: 17.5px; color: var(--text-dim); margin-bottom: 34px; }
.hero__cta { display: flex; gap: 14px; flex-wrap: wrap; }

.hero__stats { display: flex; gap: 48px; margin-top: 60px; flex-wrap: wrap; }
.hero__stat .n {
  font-size: 38px; font-weight: 800; font-family: var(--mono); line-height: 1;
  background: var(--grad-brand); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero__stat .l { color: var(--text-mute); font-size: 13.5px; margin-top: 8px; letter-spacing: .04em; }

/* 轮播 */
.slider { position: relative; border-radius: var(--r-lg); overflow: hidden; border: 1px solid var(--border); background: var(--surface-2); box-shadow: var(--shadow); }
.slider__track { display: flex; transition: transform .7s cubic-bezier(.65,.05,.36,1); }
.slider__slide { min-width: 100%; }
.slider__slide img { width: 100%; height: 100%; object-fit: cover; }
.slider__dots { position: absolute; left: 0; right: 0; bottom: 18px; display: flex; justify-content: center; gap: 10px; z-index: 3; }
.slider__dot {
  width: 26px; height: 4px; border-radius: 4px; background: rgba(255, 255, 255, .6);
  cursor: pointer; transition: .3s ease; border: 0; padding: 0;
}
.slider__dot.is-active { background: var(--grad-brand); width: 40px; }

/* ============================================================
   Feature / Solution
   ============================================================ */
.feature { display: flex; flex-direction: column; align-items: flex-start; gap: 16px; }
.feature__icon {
  width: 58px; height: 58px; border-radius: 16px; display: grid; place-items: center;
  background: var(--grad-soft); border: 1px solid var(--border-strong); font-size: 26px; overflow: hidden;
}
.feature__icon img { width: 32px; height: 32px; object-fit: contain; }
.feature__title { font-size: 18px; }
.feature__text { color: var(--text-dim); font-size: 14.5px; }

.sol-card {
  display: block; border-radius: var(--r-md); overflow: hidden;
  border: 1px solid var(--border); background: #fff; box-shadow: var(--shadow-sm);
  transition: .35s ease; position: relative;
}
.sol-card__media { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: var(--surface-2); }
.sol-card__media img { width: 100%; height: 100%; object-fit: cover; object-position: top center; transition: transform .6s ease; }
.sol-card:hover { transform: translateY(-8px); border-color: var(--border-strong); box-shadow: var(--shadow-lg); }
.sol-card:hover .sol-card__media img { transform: scale(1.06); }
.sol-card__body { padding: 22px 24px 26px; position: relative; }
.sol-card__body .t { font-size: 19px; margin-bottom: 6px; }
.sol-card__body .s { font-family: var(--mono); font-size: 11.5px; letter-spacing: .16em; text-transform: uppercase; color: var(--brand); }
.sol-card__go {
  position: absolute; right: 22px; bottom: 24px; width: 34px; height: 34px; border-radius: 50%;
  display: grid; place-items: center; border: 1px solid var(--border-strong); color: var(--brand); transition: .3s ease;
}
.sol-card:hover .sol-card__go { background: var(--grad-brand); color: #fff; transform: rotate(-45deg); }

.case-card { overflow: hidden; padding: 0; }
.case-card__img { aspect-ratio: 16 / 9; overflow: hidden; background: var(--surface-2); }
.case-card__img img { width: 100%; height: 100%; object-fit: cover; object-position: top; transition: transform .6s ease; }
.case-card:hover .case-card__img img { transform: scale(1.05); }
.case-card__body { padding: 22px 24px 26px; }
.case-card__logo { height: 32px; width: auto; margin-bottom: 14px; }
.case-card__title { font-size: 18px; margin-bottom: 10px; }
.case-card__text { color: var(--text-dim); font-size: 14.5px; }

/* ============================================================
   Marquee
   ============================================================ */
.marquee {
  position: relative; overflow: hidden; padding: 8px 0;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee__track { display: flex; width: max-content; animation: marquee 46s linear infinite; }
.marquee__group { display: flex; gap: 18px; padding-right: 18px; }
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__item {
  flex: 0 0 auto; width: 152px; height: 96px; display: grid; place-items: center;
  border-radius: 14px; border: 1px solid var(--border); background: #fff; box-shadow: var(--shadow-sm); transition: .3s ease;
}
/* 合作客户：真实商户彩色 logo（cc-i-*，已去除原图灰底并归一为方形）
   固定尺寸盒 + object-fit:contain：所有 logo 视觉占据一致大小，不被源图分辨率左右 */
.marquee__item img { width: 108px; height: 70px; object-fit: contain; transition: .3s ease; }
.marquee__item:hover { border-color: var(--border-strong); transform: translateY(-3px); }
.marquee__item:hover img { transform: scale(1.05); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ============================================================
   News
   ============================================================ */
.news-card { overflow: hidden; padding: 0; display: flex; flex-direction: column; }
.news-card__img { aspect-ratio: 16 / 9; overflow: hidden; background: var(--surface-2); }
.news-card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.news-card:hover .news-card__img img { transform: scale(1.05); }
.news-card__body { padding: 22px 24px 26px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.news-card__meta { display: flex; align-items: center; gap: 10px; font-family: var(--mono); font-size: 12px; color: var(--brand); }
/* 时分比日期次要，弱化显示 */
.news-card__meta i { font-style: normal; color: var(--text-mute); }
.news-card__title { font-size: 17px; line-height: 1.5; }
.news-card__excerpt { color: var(--text-dim); font-size: 14px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.news-card__more { margin-top: auto; color: var(--brand); font-size: 14px; font-weight: 600; }

.skeleton { border-radius: var(--r-md); background: linear-gradient(100deg, #f2efee 30%, #faf8f7 50%, #f2efee 70%); background-size: 200% 100%; animation: shimmer 1.4s infinite; min-height: 300px; }
@keyframes shimmer { to { background-position: -200% 0; } }

/* ============================================================
   Page hero
   ============================================================ */
.page-hero {
  position: relative; padding: calc(var(--nav-h) + 30px) 0 30px; text-align: center; overflow: hidden;
}
/* 顶部渐变底同样下沉到 ::before（z-index:-4），让全域粒子层能浮在其上 */
.page-hero::before {
  content: ""; position: absolute; inset: 0; z-index: -4;
  background: linear-gradient(180deg, var(--bg-soft), transparent);
}
.page-hero__eyebrow { display: inline-block; font-family: var(--mono); font-size: 12px; letter-spacing: .22em; text-transform: uppercase; color: var(--brand); margin-bottom: 18px; }
.page-hero__title { font-size: clamp(30px, 4.6vw, 54px); line-height: 1.15; margin-bottom: 16px; }
.page-hero__desc { max-width: 680px; margin: 0 auto; color: var(--text-dim); font-size: 16.5px; }
.crumb { margin-top: 14px; font-size: 13px; color: var(--text-mute); font-family: var(--mono); }
.crumb a:hover { color: var(--brand); }
.crumb span { opacity: .5; margin: 0 8px; }

/* ============================================================
   内页模块
   ============================================================ */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.split--rev .split__media { order: 2; }
.split__media img { width: 100%; border-radius: var(--r-md); border: 1px solid var(--border); box-shadow: var(--shadow); }

.pain .card { border-left: 3px solid #ff7d95; }
.pain .card:hover { border-left-color: #ff4d6d; }
.gain .card { border-left: 3px solid #4fd1a5; }
.gain .card:hover { border-left-color: var(--accent); }

.tag-list { display: flex; flex-direction: column; gap: 14px; }
.tag-item { display: flex; gap: 14px; align-items: flex-start; font-size: 15px; color: var(--text-dim); }
.tag-item .ico {
  flex: 0 0 auto; width: 24px; height: 24px; border-radius: 7px;
  display: grid; place-items: center; font-size: 13px;
  background: var(--grad-soft); border: 1px solid var(--border-strong); color: var(--brand);
}
.tag-item b { color: var(--text); }
.tag-item .hl { color: var(--brand); font-family: var(--mono); font-weight: 700; }

.compare { display: grid; grid-template-columns: 1fr auto 1fr; gap: 26px; align-items: center; }
.compare .vs {
  width: 54px; height: 54px; border-radius: 50%; display: grid; place-items: center;
  font-family: var(--mono); font-weight: 700; color: var(--brand);
  border: 1px solid var(--border-strong); background: #fff; box-shadow: var(--shadow-sm);
}
.machine-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.machine {
  aspect-ratio: 3 / 4; border-radius: var(--r-md); border: 1px solid var(--border);
  background: linear-gradient(180deg, #ffffff, var(--surface-2));
  overflow: hidden; display: grid; place-items: center; padding: 18px; box-shadow: var(--shadow-sm);
}
.machine img { max-height: 100%; width: auto; object-fit: contain; }

/* 红底数字条（对齐英文站视觉） */
.stat-band {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
  background: var(--brand); border-radius: var(--r-md); overflow: hidden;
  box-shadow: 0 20px 44px -24px rgba(213, 11, 37, .55);
}
.stat-band .stat { padding: 34px 26px; border: 0; background: transparent; box-shadow: none; text-align: center; }
.stat-band .stat + .stat { border-left: 1px solid rgba(255, 255, 255, .18); }
.stat-band .n {
  font-family: var(--mono); font-size: 44px; font-weight: 800; line-height: 1;
  background: none; -webkit-background-clip: border-box; background-clip: border-box;
  -webkit-text-fill-color: #fff; color: #fff;
}
.stat-band .l { color: rgba(255, 255, 255, .82); margin-top: 12px; font-size: 14px; }

/* ============================================================
   全品类覆盖（aiScale）—— 由原「一张大拼图」拆成 6 张独立品类卡
   照片与图标均由 fcrpp-qpl.png 精确切分 + LANCZOS 放大 + USM 锐化
   ============================================================ */
.cat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.cat-card {
  position: relative;
  display: flex; align-items: center; gap: 18px;
  padding: 16px;
  border-radius: var(--r-md);
  background: #fff;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: transform .22s cubic-bezier(.2, .7, .3, 1),
    box-shadow .3s ease, border-color .3s ease;
  overflow: hidden;
}
/* 悬停时左侧品牌色起竖条 */
.cat-card::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: var(--grad-brand);
  transform: scaleY(0); transform-origin: top;
  transition: transform .35s cubic-bezier(.2, .7, .3, 1);
}
.cat-card:hover { transform: translateY(-6px); border-color: var(--border-strong); box-shadow: var(--shadow-lg); }
.cat-card:hover::before { transform: scaleY(1); }

.cat-card__thumb {
  flex: 0 0 auto; width: 144px; height: 144px;
  border-radius: 12px; overflow: hidden; background: var(--surface-2);
}
.cat-card__thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.cat-card:hover .cat-card__thumb img { transform: scale(1.06); }

.cat-card__meta { display: flex; flex-direction: column; align-items: flex-start; gap: 9px; min-width: 0; }
.cat-card__ico {
  width: 40px; height: 40px; border-radius: 12px;
  display: grid; place-items: center;
  background: var(--grad-soft); border: 1px solid var(--border-strong);
  transition: .3s ease;
}
.cat-card__ico img { width: 26px; height: 26px; object-fit: contain; transition: filter .3s ease; }
.cat-card:hover .cat-card__ico { background: var(--grad-brand); border-color: transparent; }
/* 图标本身是品牌红线条，悬停时徽章转红底 → 用滤镜把线条翻成白色，保证可读 */
.cat-card:hover .cat-card__ico img { filter: brightness(0) invert(1); }
.cat-card__name { font-size: 19px; }
.cat-card__en {
  font-family: var(--mono); font-size: 11px; letter-spacing: .16em;
  text-transform: uppercase; color: var(--brand);
  margin-top: -3px;
}
.cat-card__ex {
  font-size: 12.5px; color: var(--text-mute); line-height: 1.5; letter-spacing: .01em;
  padding-top: 9px; border-top: 1px dashed var(--border); width: 100%;
}

@media (max-width: 1080px) {
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .cat-grid { grid-template-columns: 1fr; gap: 14px; }
  .cat-card { gap: 14px; padding: 12px; }
  .cat-card__thumb { width: 104px; height: 104px; }
  .cat-card__name { font-size: 17px; }
}

/* ============================================================
   Timeline
   ============================================================ */
.timeline { position: relative; max-width: 900px; margin: 0 auto; padding: 10px 0; }
.timeline::before {
  content: ""; position: absolute; left: 50%; top: 0; bottom: 0; width: 2px;
  transform: translateX(-50%);
  background: linear-gradient(180deg, transparent, rgba(213,11,37,.5), rgba(163,8,27,.4), transparent);
}
.tl-item { position: relative; width: 50%; padding: 0 44px 30px 0; }
.tl-item:nth-child(even) { margin-left: 50%; padding: 0 0 30px 44px; }
.tl-item .tl-card { padding: 22px 24px; border-radius: var(--r-md); border: 1px solid var(--border); background: #fff; box-shadow: var(--shadow-sm); transition: .3s ease; }
.tl-item:hover .tl-card { border-color: var(--border-strong); transform: translateY(-4px); box-shadow: var(--shadow); }
.tl-year { font-family: var(--mono); font-size: 15px; color: var(--brand); font-weight: 700; margin-bottom: 8px; }
.tl-text { color: var(--text-dim); font-size: 14.5px; }
.tl-dot {
  position: absolute; top: 22px; right: -9px; width: 18px; height: 18px; border-radius: 50%;
  background: #fff; border: 2px solid var(--brand); box-shadow: 0 0 0 4px rgba(213, 11, 37, .12);
}
.tl-item:nth-child(even) .tl-dot { right: auto; left: -9px; }

/* ============================================================
   Footer
   ============================================================ */
/* 页脚与顶部导航同色（品牌红 #d50b25），首尾呼应
   结构精简为「品牌 + 联系我们」两栏（原「快速导航 / 关于」两列已移除），整体高度约减半 */
.footer { margin-top: 0; border-top: 0; background: var(--brand); position: relative; }

/* 三栏：左「品牌」中「联系我们」右「服务号二维码」。contacts 用 2×2 卡片，
   把横向空间填满，避免中间出现大片空白 */
.footer__main {
  padding: 32px 0 26px;
  display: grid; grid-template-columns: minmax(200px, .80fr) minmax(0, 1.20fr) auto;
  gap: 32px; align-items: center;
}
.footer__brand { min-width: 0; }
.footer__brand img { height: 34px; width: auto; display: block; }
.footer__slogan {
  margin-top: 12px; color: rgba(255, 255, 255, .74);
  font-size: 13.5px; letter-spacing: .02em; line-height: 1.6;
}

.footer__contact { min-width: 0; }
.footer__h {
  font-size: 11.5px; letter-spacing: .22em;
  color: rgba(255, 255, 255, .55); margin-bottom: 12px;
}
.footer__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 12px; }
.footer__item {
  display: flex; align-items: center; gap: 11px; min-width: 0;
  padding: 11px 13px; border-radius: 12px;
  background: rgba(255, 255, 255, .09);
  border: 1px solid rgba(255, 255, 255, .13);
  transition: background-color .25s ease, border-color .25s ease;
}
.footer__item .k {
  flex: 0 0 auto; width: 32px; height: 32px; border-radius: 9px;
  display: grid; place-items: center; font-size: 15px; line-height: 1;
  background: rgba(255, 255, 255, .16); border: 1px solid rgba(255, 255, 255, .22);
  color: #fff; transition: background-color .25s ease, color .25s ease, border-color .25s ease;
}
.footer__item .v { display: flex; flex-direction: column; min-width: 0; line-height: 1.28; }
.footer__item .v b { font-weight: 600; font-size: 14px; color: #fff; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.footer__item .v i {
  font-style: normal; font-size: 11.5px; margin-top: 3px;
  color: rgba(255, 255, 255, .60); white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
/* 仅可点击项有反馈：整体提亮 + 图标反白成红底 */
a.footer__item:hover { background: rgba(255, 255, 255, .17); border-color: rgba(255, 255, 255, .30); }
a.footer__item:hover .k { background: #fff; border-color: #fff; color: var(--brand); }

/* 服务号二维码：红底上必须给白卡，黑白模块才有足够对比度可被识别。
   卡片整体是 <a>，点击调起灯箱放大（灯箱按 data-lightbox 分组，单张时自动隐藏翻页按钮）。 */
.footer__qr { display: block; text-align: center; text-decoration: none; }
.footer__qr-card {
  display: block; width: 130px; padding: 8px;
  background: #fff; border-radius: 12px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, .16);
  transition: transform .25s ease, box-shadow .25s ease;
}
.footer__qr-card img { display: block; width: 100%; height: auto; border-radius: 4px; }
.footer__qr-cap { display: block; margin-top: 9px; line-height: 1.3; }
.footer__qr-cap b { display: block; color: #fff; font-size: 12.5px; font-weight: 600; }
.footer__qr-cap i { display: block; font-style: normal; margin-top: 2px; color: rgba(255, 255, 255, .60); font-size: 11px; }
a.footer__qr:hover .footer__qr-card { transform: translateY(-3px); box-shadow: 0 10px 24px rgba(0, 0, 0, .22); }

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, .20); padding: 16px 0;
  display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; align-items: center;
  color: rgba(255, 255, 255, .70); font-size: 12.5px;
}
.footer__bottom a { color: rgba(255, 255, 255, .70); transition: color .2s ease; }
.footer__bottom a:hover { color: #fff; }
.footer__bottom .links { display: flex; gap: 18px; flex-wrap: wrap; }

/* ============================================================
   Loader & Toast
   ============================================================ */
.loadbox { position: fixed; inset: 0; z-index: 9999; display: none; place-items: center; background: rgba(255, 255, 255, .88); backdrop-filter: blur(6px); }
.loadbox.is-show { display: grid; }
.spinner { display: flex; gap: 7px; align-items: flex-end; height: 46px; }
.spinner i { width: 7px; border-radius: 4px; background: var(--grad-brand); animation: bars 1.1s ease-in-out infinite; }
.spinner i:nth-child(1) { height: 22px; animation-delay: -.5s; }
.spinner i:nth-child(2) { height: 34px; animation-delay: -.4s; }
.spinner i:nth-child(3) { height: 46px; animation-delay: -.3s; }
.spinner i:nth-child(4) { height: 34px; animation-delay: -.2s; }
.spinner i:nth-child(5) { height: 22px; animation-delay: -.1s; }
@keyframes bars { 0%,100% { transform: scaleY(.35); opacity: .6; } 50% { transform: scaleY(1); opacity: 1; } }

.toast {
  position: fixed; left: 50%; top: 92px; transform: translate(-50%, -16px);
  z-index: 10000; padding: 12px 22px; border-radius: 999px;
  background: #fff; border: 1px solid var(--border); color: var(--text);
  font-size: 14px; box-shadow: var(--shadow-lg); opacity: 0; visibility: hidden; transition: .3s ease;
}
.toast.is-show { opacity: 1; visibility: visible; transform: translate(-50%, 0); }

/* ---------- Reveal（渐进增强） ---------- */
.reveal { opacity: 1; transform: none; transition: opacity .7s ease, transform .7s ease; }
.js .reveal { opacity: 0; transform: translateY(26px); }
.js .reveal.in { opacity: 1; transform: none; }
.reveal[data-d="1"] { transition-delay: .08s; }
.reveal[data-d="2"] { transition-delay: .16s; }
.reveal[data-d="3"] { transition-delay: .24s; }
.reveal[data-d="4"] { transition-delay: .32s; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1080px) {
  /* 中窄屏改两行：上排「品牌 | 二维码」并排，下排「联系我们」占满整行。
     若放任默认单列，三块会各占一行、页脚高度几乎翻倍（实测 274→486px）。 */
  .footer__main { grid-template-columns: minmax(0, 1fr) auto; gap: 22px 24px; padding: 28px 0 22px; }
  .footer__brand { grid-row: 1; grid-column: 1; }
  .footer__qr { grid-row: 1; grid-column: 2; }
  .footer__contact { grid-row: 2; grid-column: 1 / -1; }
  .footer__qr-card { width: 104px; }
}

@media (max-width: 900px) {
  .nav__menu {
    position: fixed; inset: var(--nav-h) 0 auto 0; flex-direction: column; align-items: stretch; gap: 2px;
    padding: 16px 20px 26px; background: var(--brand);
    border-bottom: 1px solid rgba(255, 255, 255, .18);
    transform: translateY(-120%); transition: transform .35s ease;
    max-height: calc(100vh - var(--nav-h)); overflow-y: auto;
  }
  .nav.is-open .nav__menu { transform: translateY(0); }
  .nav__link { padding: 14px 12px; font-size: 16px; }
  .nav__link.is-active::after { display: none; }
  .nav__drop {
    position: static; transform: none; opacity: 1; visibility: visible;
    min-width: 0; margin: 4px 0 8px 12px; padding: 6px;
    background: rgba(0, 0, 0, .16); box-shadow: none; border-color: rgba(255, 255, 255, .14);
  }
  .nav__drop a { color: rgba(255, 255, 255, .9); }
  .nav__drop a::before { background: #fff; }
  .nav__drop a:hover { background: rgba(255, 255, 255, .12); color: #fff; }
  .nav__burger { display: block; margin-left: auto; }
  .nav__actions { margin-left: 0; margin-top: 8px; }

  /* 数字条转两列时的内分隔线 */
  .stat-band .stat:nth-child(odd) { border-left: 0; }
  .stat-band .stat:nth-child(n+3) { border-top: 1px solid rgba(255, 255, 255, .18); }

  .grid--3, .grid--4, .grid--5 { grid-template-columns: repeat(2, 1fr); }
  .machine-grid, .stat-band { grid-template-columns: repeat(2, 1fr); }
  .compare { grid-template-columns: 1fr; }
  .compare .vs { margin: 0 auto; }
  .split { grid-template-columns: 1fr; gap: 26px; }
  .split--rev .split__media { order: 0; }
  .timeline::before { left: 8px; }
  .tl-item, .tl-item:nth-child(even) { width: 100%; margin-left: 0; padding: 0 0 30px 34px; }
  .tl-dot, .tl-item:nth-child(even) .tl-dot { left: 0; right: auto; }
  .hero__stats { gap: 30px; }
}

@media (max-width: 640px) {
  .section { padding: 44px 0; }
  .container { padding: 0 18px; }
  .grid--2, .grid--3, .grid--4, .grid--5 { grid-template-columns: 1fr; }
  .machine-grid, .stat-band { grid-template-columns: 1fr 1fr; }
  /* 注意：这里不能再把 .footer__main 重置为单列 —— .footer__qr 在 1080 断点里
     被显式指定到第 2 列，单列网格会生成隐式第 2 列而撑出横向溢出。
     继续沿用 1080 断点定义的「1fr auto」两列即可（二维码保持 104px）。 */
  .footer__main { gap: 20px; padding: 26px 0 20px; }
  .footer__grid { grid-template-columns: 1fr; gap: 10px; }
  .footer__bottom { flex-direction: column; align-items: flex-start; gap: 8px; padding: 14px 0; }
  .hero { padding-top: calc(var(--nav-h) + 28px); }
}

/* ============================================================
   动态科技背景 FX（DYNAMIC BACKGROUND）
   基调仍是「白底 + 品牌红 #d50b25」——只叠加低透明度的红，
   保持明亮通透，绝不做深色化；全部动效走 transform / opacity（GPU 友好）。
   图层：
     ① .fx-ambient        全局缓慢漂移的红光晕（fixed，由 common.js 注入）
     ② .fx-stage          首屏动态层：网格 / 雷达扇扫 / 斜向光带 / 扩散环 / 扫描光束 / 粒子星座
     ③ .stat-band::after  数字条高光扫过
     ④ .divider::after    分隔线上的流光
     ⑤ .section--soft::before  浅色区带的顶部流光
   ============================================================ */

/* ---------- ① 全局漂移光晕 ---------- */
.fx-ambient {
  position: fixed; inset: 0; z-index: -6;
  pointer-events: none; overflow: hidden;
}
.fx-ambient i {
  position: absolute; display: block; border-radius: 50%;
  will-change: transform;
}
.fx-ambient i:nth-child(1) {
  width: 52vw; height: 52vw; left: -14vw; top: -16vw;
  background: radial-gradient(circle at 50% 50%, rgba(213, 11, 37, .10), rgba(213, 11, 37, 0) 64%);
  animation: fxDrift1 32s ease-in-out infinite alternate;
}
.fx-ambient i:nth-child(2) {
  width: 44vw; height: 44vw; right: -12vw; top: 14%;
  background: radial-gradient(circle at 50% 50%, rgba(232, 53, 75, .085), rgba(232, 53, 75, 0) 64%);
  animation: fxDrift2 40s ease-in-out infinite alternate;
}
.fx-ambient i:nth-child(3) {
  width: 58vw; height: 58vw; left: 22%; bottom: -22vw;
  background: radial-gradient(circle at 50% 50%, rgba(163, 8, 27, .07), rgba(163, 8, 27, 0) 66%);
  animation: fxDrift3 47s ease-in-out infinite alternate;
}
@keyframes fxDrift1 { to { transform: translate3d(9vw, 7vw, 0) scale(1.15); } }
@keyframes fxDrift2 { to { transform: translate3d(-8vw, 5vw, 0) scale(1.12); } }
@keyframes fxDrift3 { to { transform: translate3d(6vw, -7vw, 0) scale(1.10); } }

/* ---------- ② 首屏动态层 ---------- */
.fx-stage {
  position: absolute; inset: 0; overflow: hidden; pointer-events: none;
}
/* 正文容器抬到动态层之上 */
.hero > .container,
.page-hero > .container { position: relative; z-index: 2; }

/* 动态网格（遮罩挂在外层，内层做位移，避免遮罩跟着漂） */
.fx-stage__grid {
  position: absolute; inset: 0;
  mask-image: radial-gradient(ellipse 84% 76% at 50% 44%, #000 8%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 84% 76% at 50% 44%, #000 8%, transparent 78%);
}
.fx-stage__grid i {
  position: absolute; inset: -60px; display: block;
  background-image:
    linear-gradient(rgba(213, 11, 37, .06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(213, 11, 37, .06) 1px, transparent 1px);
  background-size: 56px 56px;
  animation: fxGrid 24s linear infinite;
  will-change: transform;
}
@keyframes fxGrid { to { transform: translate3d(56px, 56px, 0); } }

/* 雷达扇扫 */
.fx-radar {
  position: absolute; width: 660px; height: 660px; border-radius: 50%;
  right: -150px; top: -230px; opacity: .5;
  background: conic-gradient(from 0deg,
    rgba(213, 11, 37, .15) 0deg, rgba(213, 11, 37, .05) 20deg,
    rgba(213, 11, 37, 0) 34deg, rgba(213, 11, 37, 0) 360deg);
  mask-image: radial-gradient(circle at 50% 50%, #000 0 56%, transparent 70%);
  -webkit-mask-image: radial-gradient(circle at 50% 50%, #000 0 56%, transparent 70%);
  animation: fxSpin 10s linear infinite;
  will-change: transform;
}
.fx-radar::before, .fx-radar::after {
  content: ""; position: absolute; border-radius: 50%;
  border: 1px solid rgba(213, 11, 37, .13);
}
.fx-radar::before { inset: 16%; }
.fx-radar::after { inset: 33%; }
@keyframes fxSpin { to { transform: rotate(360deg); } }

/* 斜向光带 */
.fx-sheen {
  position: absolute; top: -50%; bottom: -50%; width: 46%; left: -60%;
  background: linear-gradient(100deg,
    rgba(213, 11, 37, 0), rgba(213, 11, 37, .05), rgba(213, 11, 37, 0));
  animation: fxSheen 13s ease-in-out infinite;
  will-change: transform;
}
@keyframes fxSheen {
  0% { transform: translate3d(-10%, 0, 0) skewX(-14deg); }
  60%, 100% { transform: translate3d(340%, 0, 0) skewX(-14deg); }
}

/* 扩散圆环 */
.fx-ring {
  position: absolute; left: 18%; top: 52%;
  width: 250px; height: 250px; margin: -125px 0 0 -125px;
  border-radius: 50%; border: 1px solid rgba(213, 11, 37, .30);
  animation: fxRing 7s ease-out infinite;
  will-change: transform, opacity;
}
.fx-ring--2 { left: auto; right: 12%; top: 34%; animation-delay: 3.5s; }
@keyframes fxRing {
  0% { transform: scale(.25); opacity: 0; }
  12% { opacity: .65; }
  100% { transform: scale(2.2); opacity: 0; }
}

/* 扫描光束：整层做位移，行本身贴在层顶部，位移百分比 = 层高 = 首屏高度 */
.fx-beam {
  position: absolute; left: 0; right: 0; top: 0; height: 100%;
  animation: fxBeam 8s cubic-bezier(.55, .06, .36, .94) infinite;
  will-change: transform, opacity;
}
.fx-beam::before {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 1px;
  background: linear-gradient(90deg,
    rgba(213, 11, 37, 0), rgba(213, 11, 37, .55), rgba(213, 11, 37, 0));
  box-shadow: 0 0 18px 2px rgba(213, 11, 37, .15);
}
@keyframes fxBeam {
  0% { transform: translate3d(0, -3%, 0); opacity: 0; }
  9% { opacity: .95; }
  91% { opacity: .95; }
  100% { transform: translate3d(0, 100%, 0); opacity: 0; }
}

/* 粒子星座画布：**固定全屏**，整站可见（common.js 绘制）
   z-index:-3 —— 高于区块底色(-4)，低于所有正常流内容，所以粒子只出现在
   「空背景」上，不会压到卡片、文字、图片上 */
.fx-particles {
  position: fixed; inset: 0; z-index: -3;
  width: 100%; height: 100%; display: block;
  pointer-events: none;
}

/* 内页首屏（居中）变体：雷达挪到标题正后方 */
.fx-stage--center .fx-radar { right: auto; left: 50%; top: -280px; margin-left: -330px; }
.fx-stage--center .fx-ring { left: 13%; top: 58%; }
.fx-stage--center .fx-ring--2 { left: auto; right: 11%; top: 30%; }

/* ---------- ③ 数字条高光扫过 ---------- */
/* 注意：高光用 background-position 位移，不能用 transform 位移 ——
   伪元素本身是 100% 宽，translate ±130% 会真的把盒子推到容器外，
   从而给 <html> 制造横向可滚动溢出。背景位移只影响绘制，永不撑开布局。 */
.stat-band { position: relative; }
.stat-band::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  background-image: linear-gradient(100deg,
    rgba(255, 255, 255, 0), rgba(255, 255, 255, .20), rgba(255, 255, 255, 0));
  background-repeat: no-repeat;
  background-size: 60% 100%;
  animation: fxShine 7s ease-in-out infinite;
}
/* background-size 60% 时，位移量 = (100% - 60%) × P，故 P=±325% 对应实际 ±130% */
@keyframes fxShine {
  0%, 52% { background-position: -325% 0; }
  88%, 100% { background-position: 325% 0; }
}

/* ---------- ④ 分隔线流光 ---------- */
.divider { position: relative; overflow: hidden; }
.divider::after {
  content: ""; position: absolute; top: 0; left: 0; width: 34%; height: 1px;
  background: linear-gradient(90deg,
    rgba(213, 11, 37, 0), rgba(213, 11, 37, .75), rgba(213, 11, 37, 0));
  animation: fxFlow 6s ease-in-out infinite;
  will-change: transform;
}
@keyframes fxFlow {
  0% { transform: translate3d(-110%, 0, 0); }
  70%, 100% { transform: translate3d(400%, 0, 0); }
}

/* ---------- ⑤ 浅色区带顶部流光 ---------- */
/* 同样用 background-position 而非 transform：
   原先 width:30% 的伪元素 translate 到 400% 会把盒子推到容器右侧外，
   在 390px 视口下正好撑出 585px 的横向溢出。
   改成满宽元素 + 30% 宽的背景条左右滑动，绘制效果一致但不再产生溢出。 */
.section--soft::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background-image: linear-gradient(90deg,
    rgba(213, 11, 37, 0), rgba(213, 11, 37, .45), rgba(213, 11, 37, 0));
  background-repeat: no-repeat;
  background-size: 30% 100%;
  animation: fxFlowBg 7s ease-in-out infinite;
}
/* background-size 30% 时，位移量 = (100% - 30%) × P，P=-47% 对应 -33%，P=171% 对应 +120% */
@keyframes fxFlowBg {
  0% { background-position: -47% 0; }
  70%, 100% { background-position: 171% 0; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .fx-radar { width: 470px; height: 470px; right: -190px; top: -210px; }
  .fx-stage--center .fx-radar { margin-left: -235px; top: -240px; }
  .fx-ring { width: 180px; height: 180px; margin: -90px 0 0 -90px; }
  .fx-sheen { display: none; }
}
@media (max-width: 640px) {
  .fx-ring--2 { display: none; }
  .fx-beam { animation-duration: 10s; }
}

/* ---------- 无障碍：尊重「减弱动态效果」 ---------- */
@media (prefers-reduced-motion: reduce) {
  .fx-ambient > i:nth-child(n),
  .fx-stage__grid i,
  .fx-radar { animation: none; }
  .fx-radar { opacity: .35; }
  .fx-beam, .fx-sheen, .fx-ring, .fx-particles,
  .stat-band::after, .divider::after, .section--soft::before { display: none; }
}

/* ============================================================
   鼠标互动 FX（POINTER INTERACTION）
   仅在「有真实指针」的设备上启用（hover:hover + pointer:fine），
   触屏 / prefers-reduced-motion 全部自动关闭（逻辑见 common.js）。
     ⑥ .fx-cursor / .fx-cursor__ring  光标跟随光斑 + 定位光环
     ⑦ .is-tilt                       卡片 3D 倾斜 + 跟随高光
     ⑧ .btn__ripple                   按钮点击涟漪
   ============================================================ */

/* ---------- ⑥ 光标跟随光斑 ---------- */
.fx-cursor {
  position: fixed; left: 0; top: 0; z-index: 900;
  width: 620px; height: 620px; margin: -310px 0 0 -310px;
  pointer-events: none; opacity: 0;
  background: radial-gradient(circle,
    rgba(213, 11, 37, .075) 0%, rgba(213, 11, 37, .035) 42%, rgba(213, 11, 37, 0) 68%);
  transition: opacity .4s ease;
  will-change: transform;
}
.fx-cursor.is-on { opacity: 1; }

/* 定位光环：正落在指针上，悬停可交互元素时放大 */
.fx-cursor__ring {
  position: fixed; left: 0; top: 0; z-index: 901;
  width: 34px; height: 34px; margin: -17px 0 0 -17px;
  pointer-events: none; opacity: 0;
  border: 1px solid rgba(213, 11, 37, .40); border-radius: 50%;
  transition: opacity .3s ease, width .25s ease, height .25s ease,
    margin .25s ease, background-color .25s ease, border-color .25s ease;
  will-change: transform;
}
.fx-cursor__ring.is-on { opacity: .85; }
.fx-cursor__ring.is-hot {
  width: 56px; height: 56px; margin: -28px 0 0 -28px;
  border-color: rgba(213, 11, 37, .55);
  /* 用径向渐变而不是纯色填充，避免在浅底上出现硬边色块 */
  background: radial-gradient(circle, rgba(213, 11, 37, .055), rgba(213, 11, 37, 0) 72%);
}

/* ---------- ⑦ 卡片 3D 倾斜 + 跟随高光 ---------- */
/* transform 交给 CSS 过渡做平滑：JS 只写目标值，浏览器插值到目标，
   等效于逐帧 lerp，但走合成层、无 JS 循环 */
.card, .sol-card, .cat-card {
  transition: transform .22s cubic-bezier(.2, .7, .3, 1),
    box-shadow .3s ease, border-color .3s ease;
}
.card::after, .sol-card::after, .cat-card::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  border-radius: inherit; pointer-events: none; opacity: 0;
  /* 白光晕（照片上呈「玻璃反光」）+ 极淡品牌红斑（白底上呈暖光），两层叠加更通透 */
  background:
    radial-gradient(220px circle at var(--mx, 50%) var(--my, 50%),
      rgba(255, 255, 255, .40), rgba(255, 255, 255, 0) 62%),
    radial-gradient(300px circle at var(--mx, 50%) var(--my, 50%),
      rgba(213, 11, 37, .07), rgba(213, 11, 37, 0) 72%);
  transition: opacity .35s ease;
}
.card.is-tilt::after, .sol-card.is-tilt::after, .cat-card.is-tilt::after { opacity: 1; }
.card.is-tilt, .sol-card.is-tilt, .cat-card.is-tilt { will-change: transform; }

/* ---------- ⑧ 按钮点击涟漪 ---------- */
.btn { overflow: hidden; }
.btn__ripple {
  position: absolute; left: 0; top: 0; width: 10px; height: 10px; border-radius: 50%;
  pointer-events: none; transform: translate(-50%, -50%) scale(0);
  animation: fxRipple .62s cubic-bezier(.2, .7, .3, 1) forwards;
}
.btn--primary .btn__ripple {
  background: radial-gradient(circle, rgba(255, 255, 255, .62), rgba(255, 255, 255, 0) 72%);
}
.btn--ghost .btn__ripple {
  background: radial-gradient(circle, rgba(213, 11, 37, .22), rgba(213, 11, 37, 0) 72%);
}
/* 导航里那个反白的按钮：白涟漪在白底上不可见，改红色 */
.nav__actions .btn--primary .btn__ripple {
  background: radial-gradient(circle, rgba(213, 11, 37, .20), rgba(213, 11, 37, 0) 72%);
}
@keyframes fxRipple { to { transform: translate(-50%, -50%) scale(1); opacity: 0; } }

/* ---------- 触屏 / 无精确指针：整块关闭 ---------- */
@media (hover: none), (pointer: coarse) {
  .fx-cursor, .fx-cursor__ring { display: none; }
  .card::after, .sol-card::after, .cat-card::after { display: none; }
}

/* ---------- 无障碍：减弱动态效果时关闭鼠标互动 ---------- */
@media (prefers-reduced-motion: reduce) {
  .fx-cursor, .fx-cursor__ring { display: none; }
  .card::after, .sol-card::after, .cat-card::after { display: none; }
  .card, .sol-card, .cat-card { transition: box-shadow .3s ease, border-color .3s ease; }
  .btn__ripple { display: none; }
}

/* ============================================================
   资质荣誉 · 证书墙（CERTIFICATE GALLERY）
   由原来一张烧死的 1200×647 拼接大图，改为 8 张独立证书卡网格，
   按下可开灯箱看大图。基调仍为「白底 + 品牌红 #d50b25」。
   ============================================================ */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.cert-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 14px 14px 16px;
  border-radius: var(--r-md);
  background: #fff;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.cert-card::before {
  content: "";
  position: absolute; inset: 0 0 auto 0; height: 3px;
  background: var(--grad-brand);
  opacity: 0; transition: opacity .3s ease;
}
.cert-card:hover { transform: translateY(-6px); border-color: var(--border-strong); box-shadow: var(--shadow-lg); }
.cert-card:hover::before { opacity: 1; }

/* 证书画面区：固定 4:3，图片 contain 居中，保证横竖版证书视觉统一 */
.cert-card__view {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 4 / 3;
  padding: 6px;
  border-radius: 10px;
  background: linear-gradient(180deg, #ffffff, var(--surface-2));
  box-shadow: inset 0 0 0 1px var(--border);
  overflow: hidden;
}
.cert-card__view img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: 4px;
  transition: transform .45s cubic-bezier(.2, .7, .3, 1);
}
.cert-card:hover .cert-card__view img { transform: scale(1.05); }

/* 悬停遮罩 + 放大镜 */
.cert-card__zoom {
  position: absolute; inset: 0;
  display: grid; place-items: center;
  background: rgba(213, 11, 37, .30);
  opacity: 0; transition: opacity .3s ease;
}
.cert-card__zoom i {
  width: 44px; height: 44px; border-radius: 50%;
  display: grid; place-items: center;
  font-style: normal; font-size: 20px; line-height: 1;
  color: var(--brand); background: rgba(255, 255, 255, .95);
  box-shadow: 0 8px 20px rgba(60, 20, 26, .22);
  transform: scale(.78); transition: transform .3s ease;
}
.cert-card:hover .cert-card__zoom { opacity: 1; }
.cert-card:hover .cert-card__zoom i { transform: scale(1); }

.cert-card__meta { display: flex; flex-direction: column; gap: 6px; margin-top: auto; min-width: 0; }
.cert-card__meta b {
  font-size: 13.5px; font-weight: 600; line-height: 1.36; color: var(--text);
  min-height: 2.72em;                     /* 统一两行高度，让整排卡片等高 */
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden;
}
.cert-card__meta i {
  font-style: normal; font-family: var(--mono); font-size: 11px;
  letter-spacing: .04em; color: var(--text-mute);
}

@media (max-width: 1080px) { .cert-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 900px) {
  .cert-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
}
@media (max-width: 640px) {
  .cert-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .cert-card { padding: 10px 10px 12px; gap: 9px; }
  .cert-card__view { padding: 4px; }
  .cert-card__meta b { font-size: 12.5px; }
  .cert-card__zoom i { width: 36px; height: 36px; font-size: 17px; }
}

/* ============================================================
   证书灯箱（LIGHTBOX）
   ============================================================ */
.lightbox {
  position: fixed; inset: 0; z-index: 2000;
  display: none; place-items: center;
  padding: 56px 78px;
  background: rgba(28, 8, 12, .86);
  -webkit-backdrop-filter: blur(5px);
  backdrop-filter: blur(5px);
}
.lightbox.is-open { display: grid; }
.lightbox__img {
  max-width: 100%;
  max-height: 100%;
  border-radius: 10px;
  background: #fff;
  box-shadow: 0 30px 80px rgba(0, 0, 0, .5);
}
.lightbox__btn {
  position: absolute;
  width: 46px; height: 46px; padding: 0;
  border-radius: 50%; cursor: pointer;
  display: grid; place-items: center;
  font-size: 20px; line-height: 1;
  color: #fff;
  background: rgba(255, 255, 255, .13);
  border: 1px solid rgba(255, 255, 255, .30);
  transition: background-color .2s ease, transform .2s ease;
}
.lightbox__btn:hover { background: rgba(255, 255, 255, .26); }
.lightbox__close { top: 22px; right: 26px; }
.lightbox__prev { left: 20px; top: 50%; transform: translateY(-50%); }
.lightbox__next { right: 20px; top: 50%; transform: translateY(-50%); }
.lightbox__count {
  position: absolute; left: 50%; bottom: 20px; transform: translateX(-50%);
  font-family: var(--mono); font-size: 12.5px; letter-spacing: .1em;
  color: rgba(255, 255, 255, .72);
}
html.is-locked, html.is-locked body { overflow: hidden; }

@media (max-width: 640px) {
  .lightbox { padding: 62px 12px; }
  .lightbox__btn { width: 40px; height: 40px; font-size: 18px; }
  .lightbox__close { top: 14px; right: 14px; }
  .lightbox__prev { left: 8px; }
  .lightbox__next { right: 8px; }
  .lightbox__count { bottom: 14px; }
}

/* ============================================================
   访问密码弹层（软件下载入口 GATE）
   ============================================================ */
.gate {
  position: fixed; inset: 0; z-index: 2100;
  display: none; place-items: center;
  padding: 24px;
  background: rgba(28, 8, 12, .62);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}
.gate.is-open { display: grid; }
.gate__box {
  width: min(420px, 100%);
  padding: 30px 28px 24px;
  text-align: center;
  background: #fff;
  border-radius: var(--r-md);
  box-shadow: 0 30px 80px rgba(0, 0, 0, .42);
  animation: gateIn .28s cubic-bezier(.2, .7, .3, 1);
}
@keyframes gateIn { from { opacity: 0; transform: translateY(14px) scale(.97); } }
.gate__ico {
  width: 52px; height: 52px; margin: 0 auto 16px;
  display: grid; place-items: center;
  font-size: 22px; line-height: 1;
  color: var(--brand);
  background: var(--grad-soft);
  border: 1px solid var(--border-strong);
  border-radius: 14px;
}
.gate__title { font-size: 19px; margin-bottom: 8px; }
.gate__desc { font-size: 13px; line-height: 1.6; color: var(--text-mute); margin-bottom: 20px; }
.gate__input {
  width: 100%; height: 48px; padding: 0 12px 0 24px;
  text-align: center; letter-spacing: .38em;
  font-family: var(--mono); font-size: 19px; color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  outline: none;
  transition: border-color .2s ease, box-shadow .2s ease, background-color .2s ease;
}
.gate__input:focus { background: #fff; border-color: var(--brand); box-shadow: 0 0 0 3px rgba(213, 11, 37, .12); }
.gate__input::placeholder { color: var(--text-mute); letter-spacing: .3em; }
.gate__err { min-height: 18px; margin-top: 10px; font-size: 12.5px; color: var(--brand); }
.gate__row { display: flex; gap: 10px; margin-top: 6px; }
.gate__btn {
  flex: 1; height: 46px;
  font-size: 15px; font-weight: 600; cursor: pointer;
  color: var(--text); background: #fff;
  border: 1px solid var(--border); border-radius: 12px;
  transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.gate__btn:hover { border-color: var(--border-strong); }
.gate__btn--primary {
  color: #fff; background: var(--grad-brand);
  border-color: transparent; box-shadow: var(--glow);
}
.gate__btn--primary:hover { transform: translateY(-2px); }
.gate__box.is-shake { animation: gateShake .42s ease; }
@keyframes gateShake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-9px); }
  40% { transform: translateX(8px); }
  60% { transform: translateX(-5px); }
  80% { transform: translateX(3px); }
}
@media (prefers-reduced-motion: reduce) {
  .gate__box { animation: none; }
  .gate__box.is-shake { animation: none; }
}