/* ==========================================================================
   麒龙网络科技 · 官网设计系统
   Design Tokens → Layout → Components → Utilities → Responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. 设计令牌 Design Tokens
   -------------------------------------------------------------------------- */
:root {
  /* 主色 —— 麒龙蓝 */
  --c-primary: #1266f1;
  --c-primary-dark: #0a4bc4;
  --c-primary-light: #e8f0ff;
  --c-accent: #00c2ff;
  --c-gold: #c8a45c;
  --c-teal: #17a3a8;

  /* 中性色 */
  --c-ink: #0d1b34;
  --c-text: #25324a;
  --c-text-2: #5a6a85;
  --c-text-3: #8b98ad;
  --c-line: #e4eaf3;
  --c-line-2: #eef2f8;
  --c-bg: #ffffff;
  --c-bg-soft: #f5f8fd;
  --c-bg-deep: #0a1730;

  /* 渐变 */
  --g-primary: linear-gradient(135deg, #1266f1 0%, #00a8ff 100%);
  --g-hero: linear-gradient(120deg, #0a1c3c 0%, #123a7a 45%, #0d5fc4 100%);
  --g-gold: linear-gradient(135deg, #d9bd7d 0%, #b8934a 100%);
  --g-text: linear-gradient(180deg, #1a2c4a 0%, #0d1b34 100%);

  /* 阴影 */
  --sh-xs: 0 1px 2px rgba(13, 27, 52, .06);
  --sh-sm: 0 2px 8px rgba(13, 27, 52, .06);
  --sh-md: 0 8px 24px rgba(13, 27, 52, .08);
  --sh-lg: 0 16px 48px rgba(13, 27, 52, .12);
  --sh-xl: 0 28px 70px rgba(13, 27, 52, .16);
  --sh-primary: 0 10px 28px rgba(18, 102, 241, .28);
  --sh-primary-lg: 0 18px 44px rgba(18, 102, 241, .36);

  /* 圆角 */
  --r-xs: 6px;
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 22px;
  --r-xl: 30px;
  --r-pill: 999px;

  /* 间距 */
  --sp-1: 4px;   --sp-2: 8px;   --sp-3: 12px;  --sp-4: 16px;
  --sp-5: 24px;  --sp-6: 32px;  --sp-7: 48px;  --sp-8: 64px;
  --sp-9: 96px;  --sp-10: 128px;

  /* 版心 */
  --w-max: 1240px;
  --w-wide: 1440px;

  /* 动效 */
  --ease: cubic-bezier(.22, .61, .36, 1);
  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --dur: .32s;

  /* 字体 */
  --ff: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Source Han Sans CN",
        -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --ff-num: "DIN Alternate", "Bahnschrift", "Segoe UI", system-ui, sans-serif;
}

/* --------------------------------------------------------------------------
   2. 基础重置 Reset
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  font-family: var(--ff);
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, p, figure, ul, ol, dl, dd { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }

::selection { background: rgba(18, 102, 241, .16); color: var(--c-primary-dark); }

/* 滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--c-bg-soft); }
::-webkit-scrollbar-thumb { background: #c6d2e4; border-radius: 6px; border: 2px solid var(--c-bg-soft); }
::-webkit-scrollbar-thumb:hover { background: #a9bad3; }

/* --------------------------------------------------------------------------
   3. 布局 Layout
   -------------------------------------------------------------------------- */
.wrap { width: 100%; max-width: var(--w-max); margin: 0 auto; padding: 0 24px; }
.wrap-wide { max-width: var(--w-wide); }
.wrap-narrow { max-width: 940px; }

.section { padding: var(--sp-9) 0; position: relative; }
.section-sm { padding: var(--sp-8) 0; }
.section-soft { background: var(--c-bg-soft); }
.section-deep { background: var(--c-bg-deep); color: #fff; }

.grid { display: grid; gap: var(--sp-5); }
.g-2 { grid-template-columns: repeat(2, 1fr); }
.g-3 { grid-template-columns: repeat(3, 1fr); }
.g-4 { grid-template-columns: repeat(4, 1fr); }
.g-5 { grid-template-columns: repeat(5, 1fr); }

/* 章节标题 */
.sec-head { text-align: center; max-width: 780px; margin: 0 auto var(--sp-8); }
.sec-head.left { text-align: left; margin-left: 0; }
.sec-head .eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; letter-spacing: .12em;
  color: var(--c-primary); text-transform: uppercase;
  margin-bottom: var(--sp-3);
}
.sec-head .eyebrow::before {
  content: ""; width: 22px; height: 2px; border-radius: 2px; background: var(--g-primary);
}
.sec-head h2 {
  font-size: clamp(26px, 3.4vw, 40px);
  line-height: 1.28; font-weight: 700; color: var(--c-ink);
  letter-spacing: -.02em;
}
.sec-head p { margin-top: var(--sp-4); font-size: 16px; color: var(--c-text-2); }
.section-deep .sec-head h2 { color: #fff; }
.section-deep .sec-head p { color: rgba(255, 255, 255, .68); }

.sec-head .bar {
  width: 56px; height: 4px; border-radius: 4px; background: var(--g-primary);
  margin: 0 auto var(--sp-5);
}
.sec-head.left .bar { margin-left: 0; }

/* --------------------------------------------------------------------------
   4. 顶部导航 Header
   -------------------------------------------------------------------------- */
.topbar {
  background: var(--c-bg-deep); color: rgba(255, 255, 255, .72);
  font-size: 13px; line-height: 1;
}
.topbar .wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 38px;
}
.topbar a { transition: color .2s; }
.topbar a:hover { color: #fff; }
.topbar-left { display: flex; align-items: center; gap: 22px; }
.topbar-right { display: flex; align-items: center; gap: 18px; }
.topbar .hot { color: var(--c-accent); font-weight: 600; letter-spacing: .04em; }

.site-header {
  position: sticky; top: 0; z-index: 900;
  background: rgba(255, 255, 255, .88);
  backdrop-filter: saturate(180%) blur(18px);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, box-shadow .3s, background .3s;
}
.site-header.scrolled {
  border-bottom-color: var(--c-line);
  box-shadow: 0 4px 20px rgba(13, 27, 52, .05);
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 76px; gap: var(--sp-6);
}

.brand { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
.brand img { width: 40px; height: 40px; object-fit: contain; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name {
  font-size: 21px; font-weight: 800; letter-spacing: .06em;
  background: var(--g-text);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.brand-sub { font-size: 10px; letter-spacing: .22em; color: var(--c-text-3); text-transform: uppercase; margin-top: 3px; }

.nav { display: flex; align-items: center; gap: 4px; }
.nav-item { position: relative; }
.nav-link {
  display: flex; align-items: center; gap: 5px;
  padding: 0 18px; height: 76px; font-size: 15px; font-weight: 500;
  color: var(--c-text); position: relative; transition: color .24s;
}
.nav-link::after {
  content: ""; position: absolute; left: 18px; right: 18px; bottom: 0; height: 3px;
  border-radius: 3px 3px 0 0; background: var(--g-primary);
  transform: scaleX(0); transform-origin: center; transition: transform .3s var(--ease);
}
.nav-item:hover .nav-link { color: var(--c-primary); }
.nav-item:hover .nav-link::after,
.nav-item.active .nav-link::after { transform: scaleX(1); }
.nav-item.active .nav-link { color: var(--c-primary); font-weight: 600; }
.nav-link .caret { width: 9px; height: 9px; transition: transform .28s; opacity: .5; }
.nav-item:hover .caret { transform: rotate(180deg); }

/* 下拉面板 */
.dropdown {
  position: absolute; top: 100%; left: 50%; transform: translate(-50%, 8px);
  min-width: 250px; padding: 14px;
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--r-md);
  box-shadow: var(--sh-lg);
  opacity: 0; visibility: hidden; pointer-events: none;
  transition: opacity .26s var(--ease), transform .26s var(--ease), visibility .26s;
}
.nav-item:hover .dropdown,
.nav-item:focus-within .dropdown {
  opacity: 1; visibility: visible; pointer-events: auto;
  transform: translate(-50%, 0);
}
.dropdown a {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border-radius: var(--r-sm);
  font-size: 14px; color: var(--c-text); transition: all .2s;
}
.dropdown a:hover { background: var(--c-primary-light); color: var(--c-primary); padding-left: 16px; }
.dropdown a .dot {
  width: 5px; height: 5px; border-radius: 50%; background: var(--c-text-3);
  transition: all .2s; flex-shrink: 0;
}
.dropdown a:hover .dot { background: var(--c-primary); }
.dropdown .dd-title {
  padding: 8px 12px 10px; font-size: 12px; font-weight: 700; letter-spacing: .1em;
  color: var(--c-text-3); text-transform: uppercase;
}

/* 宽版 mega 菜单 */
.mega { min-width: 560px; padding: 18px; }
.mega-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; }
.mega-grid a { padding: 11px 14px; }
.mega-grid a strong { display: block; font-size: 14.5px; font-weight: 600; }
.mega-grid a small { display: block; font-size: 12px; color: var(--c-text-3); margin-top: 2px; }
.mega-grid a:hover strong { color: var(--c-primary); }

/* 头部 CTA */
.header-cta { display: flex; align-items: center; gap: 16px; flex-shrink: 0; }
.hotline { display: flex; align-items: center; gap: 9px; }
.hotline svg { width: 22px; height: 22px; color: var(--c-primary); flex-shrink: 0; }
.hotline .num {
  font-family: var(--ff-num); font-size: 21px; font-weight: 700;
  color: var(--c-primary); letter-spacing: .01em; line-height: 1.1;
}
.hotline .lbl { font-size: 11px; color: var(--c-text-3); line-height: 1.1; }

/* 移动端菜单开关 */
.nav-toggle {
  display: none; width: 42px; height: 42px; border-radius: var(--r-sm);
  align-items: center; justify-content: center; flex-direction: column; gap: 5px;
  background: var(--c-bg-soft);
}
.nav-toggle span {
  display: block; width: 19px; height: 2px; border-radius: 2px;
  background: var(--c-ink); transition: transform .3s var(--ease), opacity .2s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* --------------------------------------------------------------------------
   5. 按钮 Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 48px; padding: 0 30px; border-radius: var(--r-pill);
  font-size: 15px; font-weight: 600; white-space: nowrap;
  transition: transform .24s var(--ease), box-shadow .24s, background .24s, color .24s;
  cursor: pointer; border: 1px solid transparent;
}
.btn svg { width: 16px; height: 16px; transition: transform .24s; }
.btn:hover svg { transform: translateX(3px); }

.btn-primary { background: var(--g-primary); color: #fff; box-shadow: var(--sh-primary); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--sh-primary-lg); }

.btn-ghost { background: transparent; color: var(--c-primary); border-color: var(--c-primary); }
.btn-ghost:hover { background: var(--c-primary); color: #fff; transform: translateY(-2px); }

.btn-light { background: #fff; color: var(--c-primary); box-shadow: var(--sh-md); }
.btn-light:hover { transform: translateY(-2px); box-shadow: var(--sh-lg); }

.btn-outline-light { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .45); }
.btn-outline-light:hover { background: #fff; color: var(--c-primary); transform: translateY(-2px); }

.btn-sm { height: 40px; padding: 0 22px; font-size: 14px; }
.btn-lg { height: 56px; padding: 0 40px; font-size: 16px; }
.btn-block { width: 100%; }

.link-more {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 14px; font-weight: 600; color: var(--c-primary);
  transition: gap .24s var(--ease);
}
.link-more:hover { gap: 11px; }
.link-more svg { width: 13px; height: 13px; }

/* --------------------------------------------------------------------------
   6. 卡片 Cards
   -------------------------------------------------------------------------- */
.card {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--r-md);
  transition: transform .34s var(--ease), box-shadow .34s var(--ease), border-color .34s;
  position: relative; overflow: hidden;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--sh-lg); border-color: transparent; }

.card-pad { padding: var(--sp-6); }

/* 图标方块 */
.icon-box {
  width: 56px; height: 56px; border-radius: var(--r-md);
  display: grid; place-items: center; flex-shrink: 0;
  background: var(--c-primary-light); color: var(--c-primary);
  transition: background .3s, color .3s, transform .3s var(--ease);
}
.icon-box img { width: 30px; height: 30px; object-fit: contain; }
.icon-box.lg { width: 72px; height: 72px; border-radius: var(--r-lg); }
.icon-box.lg img { width: 40px; height: 40px; }
.icon-box.circle { border-radius: 50%; }
.card:hover .icon-box { background: var(--g-primary); color: #fff; transform: scale(1.06); }

/* --------------------------------------------------------------------------
   7. 首页 Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative; overflow: hidden;
  background: var(--g-hero);
  min-height: 640px; display: flex; align-items: center;
  padding: var(--sp-10) 0 var(--sp-9);
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(900px 480px at 78% 22%, rgba(0, 194, 255, .26), transparent 62%),
    radial-gradient(700px 420px at 12% 82%, rgba(18, 102, 241, .34), transparent 65%);
  pointer-events: none;
}
.hero::after {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
  background-size: 62px 62px;
  mask-image: radial-gradient(circle at 50% 40%, #000 30%, transparent 78%);
  -webkit-mask-image: radial-gradient(circle at 50% 40%, #000 30%, transparent 78%);
  pointer-events: none;
}
.hero .wrap { position: relative; z-index: 2; }
.hero-inner { display: grid; grid-template-columns: 1.05fr .95fr; gap: var(--sp-8); align-items: center; }
.hero-copy { min-width: 0; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 7px 18px; border-radius: var(--r-pill);
  background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .2);
  color: rgba(255, 255, 255, .92); font-size: 13px; font-weight: 500;
  backdrop-filter: blur(8px); margin-bottom: var(--sp-5);
}
.hero-badge .pulse {
  width: 7px; height: 7px; border-radius: 50%; background: #4ade80;
  box-shadow: 0 0 0 0 rgba(74, 222, 128, .7); animation: pulse 2s infinite;
}
@keyframes pulse {
  70% { box-shadow: 0 0 0 9px rgba(74, 222, 128, 0); }
  100% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0); }
}

.hero h1 {
  font-size: clamp(34px, 4.6vw, 58px); line-height: 1.2; font-weight: 800;
  color: #fff; letter-spacing: -.02em;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(100deg, #6fe4ff 0%, #a5f0ff 50%, #ffd88a 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-lead { margin-top: var(--sp-5); font-size: 17px; line-height: 1.85; color: rgba(255, 255, 255, .74); max-width: 560px; }
.hero-actions { margin-top: var(--sp-7); display: flex; flex-wrap: wrap; gap: 14px; }

.hero-stats {
  margin-top: var(--sp-8); display: flex; gap: var(--sp-7); flex-wrap: wrap;
  padding-top: var(--sp-6); border-top: 1px solid rgba(255, 255, 255, .14);
}
.hero-stat .n {
  font-family: var(--ff-num); font-size: 34px; font-weight: 700; line-height: 1;
  background: linear-gradient(180deg, #fff, #9fd4ff);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-stat .n small { font-size: 17px; margin-left: 2px; }
.hero-stat .t { font-size: 13px; color: rgba(255, 255, 255, .55); margin-top: 7px; }

.hero-visual { position: relative; }
.hero-visual .glow {
  position: absolute; inset: 8% 6%; border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 194, 255, .3), transparent 68%);
  filter: blur(30px);
}
.hero-visual .frame {
  position: relative; border-radius: var(--r-xl); overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .16);
  box-shadow: 0 40px 90px rgba(0, 0, 0, .45);
}
.hero-visual .frame img { width: 100%; height: auto; }
.hero-float {
  position: absolute; display: flex; align-items: center; gap: 10px;
  padding: 12px 18px; border-radius: var(--r-md);
  background: rgba(255, 255, 255, .95); backdrop-filter: blur(10px);
  box-shadow: var(--sh-xl); color: var(--c-ink); font-size: 13px; font-weight: 600;
  animation: float 5s ease-in-out infinite;
}
.hero-float .ic {
  width: 32px; height: 32px; border-radius: var(--r-sm); display: grid; place-items: center;
  background: var(--g-primary); color: #fff; flex-shrink: 0;
}
.hero-float .ic svg { width: 17px; height: 17px; }
.hero-float.f1 { left: -26px; top: 14%; animation-delay: 0s; }
.hero-float.f2 { right: -22px; bottom: 16%; animation-delay: 1.4s; }
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-11px); }
}

/* 滚动指示 */
.scroll-hint {
  position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%);
  z-index: 3; display: flex; flex-direction: column; align-items: center; gap: 8px;
  font-size: 11px; letter-spacing: .18em; color: rgba(255, 255, 255, .45);
  text-transform: uppercase;
}
.scroll-hint .line { width: 1px; height: 34px; background: linear-gradient(rgba(255,255,255,.5), transparent); }

/* --------------------------------------------------------------------------
   8. 产品矩阵 Product Matrix
   -------------------------------------------------------------------------- */
.prod-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-5); }
.prod-card { display: flex; flex-direction: column; padding: var(--sp-6); }
.prod-card .top { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--sp-4); }
.prod-card h3 { font-size: 19px; font-weight: 700; color: var(--c-ink); letter-spacing: -.01em; }
.prod-card p {
  margin-top: var(--sp-3); font-size: 14px; line-height: 1.8; color: var(--c-text-2);
  flex: 1;
}
.prod-card .acts { margin-top: var(--sp-5); display: flex; align-items: center; gap: 18px; }
.prod-card .acts a {
  font-size: 13.5px; font-weight: 600; color: var(--c-primary);
  display: inline-flex; align-items: center; gap: 5px; transition: gap .24s;
}
.prod-card .acts a:hover { gap: 9px; }
.prod-card .acts a.plain { color: var(--c-text-2); }
.prod-card .acts a.plain:hover { color: var(--c-ink); }
.prod-card .acts svg { width: 12px; height: 12px; }
.prod-card::after {
  content: ""; position: absolute; left: 0; top: 0; height: 3px; width: 0;
  background: var(--g-primary); transition: width .4s var(--ease);
}
.prod-card:hover::after { width: 100%; }
.prod-card .tag {
  font-size: 11px; font-weight: 600; letter-spacing: .06em; color: var(--c-text-3);
  padding: 4px 10px; border-radius: var(--r-pill); background: var(--c-bg-soft);
  white-space: nowrap;
}

/* --------------------------------------------------------------------------
   9. 三栏特性 Feature Triad
   -------------------------------------------------------------------------- */
.triad { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-6); text-align: center; }
.triad .item { padding: var(--sp-6) var(--sp-4); }
.triad .item .ic {
  width: 84px; height: 84px; margin: 0 auto var(--sp-5); border-radius: 50%;
  display: grid; place-items: center;
  background: linear-gradient(140deg, #f2f7ff, #e6f0ff);
  border: 1px solid #dbe8ff;
}
.triad .item .ic img { width: 42px; height: 42px; object-fit: contain; }
.triad .item h3 { font-size: 19px; font-weight: 700; color: var(--c-ink); }
.triad .item p { margin-top: var(--sp-3); font-size: 14.5px; color: var(--c-text-2); line-height: 1.85; }
.section-deep .triad .item .ic {
  background: rgba(255, 255, 255, .08); border-color: rgba(255, 255, 255, .14);
}
.section-deep .triad .item h3 { color: #fff; }
.section-deep .triad .item p { color: rgba(255, 255, 255, .62); }

/* --------------------------------------------------------------------------
   10. 人货场 Section
   -------------------------------------------------------------------------- */
.hps { position: relative; overflow: hidden; }
.hps-bg {
  position: absolute; inset: 0;
  background: linear-gradient(140deg, #081329 0%, #0d2247 50%, #0a1730 100%);
}
.hps-bg::after {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(760px 420px at 22% 26%, rgba(18, 102, 241, .34), transparent 62%),
    radial-gradient(680px 400px at 78% 76%, rgba(0, 194, 255, .2), transparent 64%);
}
.hps-bg img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .3;
}
.hps .wrap { position: relative; z-index: 2; }

.hps-top { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-7); margin-bottom: var(--sp-8); }
.hps-pillar { text-align: center; }
.hps-pillar .ic {
  width: 76px; height: 76px; margin: 0 auto var(--sp-4); border-radius: 50%;
  display: grid; place-items: center; border: 1px solid rgba(255, 255, 255, .18);
  background: rgba(255, 255, 255, .06); backdrop-filter: blur(6px);
}
.hps-pillar .ic svg { width: 34px; height: 34px; color: #6fe4ff; }
.hps-pillar .cn {
  font-size: 30px; font-weight: 800; letter-spacing: .22em; color: #fff;
  display: block; margin-bottom: 4px;
}
.hps-pillar .en { font-size: 12px; letter-spacing: .3em; color: rgba(255, 255, 255, .4); text-transform: uppercase; }
.hps-pillar .desc { margin-top: var(--sp-3); font-size: 15px; color: rgba(255, 255, 255, .72); }

.hps-panel {
  background: rgba(255, 255, 255, .05); border: 1px solid rgba(255, 255, 255, .12);
  border-radius: var(--r-lg); padding: var(--sp-7); backdrop-filter: blur(12px);
}
.hps-panel h3 { font-size: 25px; color: #fff; font-weight: 700; letter-spacing: -.01em; }
.hps-panel > p { margin-top: var(--sp-3); color: rgba(255, 255, 255, .62); line-height: 1.9; }
.hps-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-5); margin-top: var(--sp-6); }
.hps-col {
  background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .1);
  border-radius: var(--r-md); padding: var(--sp-5);
}
.hps-col .ic { width: 38px; height: 38px; border-radius: var(--r-sm); display: grid; place-items: center; background: rgba(0, 194, 255, .16); margin-bottom: var(--sp-3); }
.hps-col .ic svg { width: 20px; height: 20px; color: #6fe4ff; }
.hps-col h4 { font-size: 16px; color: #fff; font-weight: 600; }
.hps-col p { margin-top: 6px; font-size: 13.5px; line-height: 1.8; color: rgba(255, 255, 255, .58); }

/* --------------------------------------------------------------------------
   11. 品牌案例 Cases
   -------------------------------------------------------------------------- */
.case-slider { position: relative; border-radius: var(--r-xl); overflow: hidden; box-shadow: var(--sh-xl); }
.case-track { display: flex; transition: transform .7s var(--ease-out); }
.case-slide { flex: 0 0 100%; display: grid; grid-template-columns: .95fr 1.05fr; min-height: 480px; }
.case-info {
  padding: var(--sp-8); display: flex; flex-direction: column; justify-content: center;
  color: #fff; position: relative; overflow: hidden;
}
.case-info::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(500px 300px at 20% 20%, rgba(255, 255, 255, .14), transparent 65%);
}
.case-info > * { position: relative; z-index: 2; }
.case-info .quote { font-size: 62px; line-height: .7; opacity: .3; font-family: Georgia, serif; }
.case-info h3 { font-size: 32px; font-weight: 800; letter-spacing: .02em; }
.case-info p { margin-top: var(--sp-4); font-size: 15px; line-height: 1.95; opacity: .82; }
.case-info .chips { margin-top: var(--sp-5); display: flex; flex-wrap: wrap; gap: 9px; }
.case-info .chip {
  padding: 6px 14px; border-radius: var(--r-pill); font-size: 12.5px;
  background: rgba(255, 255, 255, .14); border: 1px solid rgba(255, 255, 255, .2);
}
.case-info .btn { margin-top: var(--sp-6); align-self: flex-start; }
.case-media { position: relative; overflow: hidden; background: var(--c-bg-soft); }
.case-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.1s var(--ease-out); }
.case-slide.active .case-media img { transform: scale(1.04); }

.case-nav {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 5;
  width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center;
  background: rgba(255, 255, 255, .92); color: var(--c-ink);
  box-shadow: var(--sh-md); transition: all .24s;
}
.case-nav:hover { background: #fff; color: var(--c-primary); transform: translateY(-50%) scale(1.08); }
.case-nav.prev { left: 18px; }
.case-nav.next { right: 18px; }
.case-nav svg { width: 18px; height: 18px; }

.case-dots {
  position: absolute; bottom: 20px; right: 24px; z-index: 5;
  display: flex; gap: 8px;
}
.case-dots button {
  width: 9px; height: 9px; border-radius: var(--r-pill); background: rgba(255, 255, 255, .45);
  transition: all .3s;
}
.case-dots button.on { width: 26px; background: #fff; }

/* --------------------------------------------------------------------------
   12. 优势 / 服务网格
   -------------------------------------------------------------------------- */
.adv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-5); }
.adv-card { padding: var(--sp-6); }
.adv-card .hd { display: flex; align-items: center; gap: var(--sp-4); margin-bottom: var(--sp-4); }
.adv-card h3 { font-size: 18px; font-weight: 700; color: var(--c-ink); }
.adv-card p { font-size: 14.5px; line-height: 1.85; color: var(--c-text-2); }

.svc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-5); }
.svc-card {
  padding: var(--sp-6); display: flex; gap: var(--sp-4); align-items: flex-start;
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--r-md);
  transition: all .32s var(--ease);
}
.svc-card:hover { transform: translateY(-4px); box-shadow: var(--sh-md); border-color: #d5e3fb; }
.svc-card .ic {
  width: 50px; height: 50px; border-radius: var(--r-md); flex-shrink: 0;
  display: grid; place-items: center; background: var(--g-primary); color: #fff;
  box-shadow: var(--sh-primary);
}
.svc-card .ic svg { width: 24px; height: 24px; }
.svc-card h4 { font-size: 17px; font-weight: 700; color: var(--c-ink); }
.svc-card p { margin-top: 5px; font-size: 13.5px; color: var(--c-text-2); line-height: 1.7; }

/* --------------------------------------------------------------------------
   13. 合作表单 Contact
   -------------------------------------------------------------------------- */
.contact-wrap {
  display: grid; grid-template-columns: .85fr 1.15fr; gap: var(--sp-8);
  align-items: center;
}
.contact-left h2 { font-size: clamp(26px, 3.2vw, 38px); font-weight: 800; color: var(--c-ink); letter-spacing: -.02em; }
.contact-left .bar { width: 56px; height: 4px; border-radius: 4px; background: var(--g-primary); margin: var(--sp-5) 0; }
.contact-left p { font-size: 15px; line-height: 1.9; color: var(--c-text-2); }
.contact-qr {
  margin-top: var(--sp-6); display: inline-flex; align-items: center; gap: 18px;
  padding: 18px; border-radius: var(--r-md); background: #fff;
  border: 1px solid var(--c-line); box-shadow: var(--sh-sm);
}
.contact-qr img { width: 108px; height: 108px; border-radius: var(--r-sm); }
.contact-qr .t { font-size: 15px; font-weight: 700; color: var(--c-ink); }
.contact-qr .d { font-size: 13px; color: var(--c-text-2); margin-top: 5px; }
.contact-qr .tel { font-family: var(--ff-num); font-size: 22px; font-weight: 700; color: var(--c-primary); margin-top: 8px; }

.form-card {
  background: #fff; border-radius: var(--r-lg); padding: var(--sp-7);
  box-shadow: var(--sh-lg); border: 1px solid var(--c-line);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-5); }
.field { margin-bottom: var(--sp-5); }
.field label {
  display: block; font-size: 13.5px; font-weight: 600; color: var(--c-text);
  margin-bottom: 9px;
}
.field label .req { color: #f04d4d; margin-left: 3px; }
.field input, .field textarea, .field select {
  width: 100%; height: 50px; padding: 0 16px;
  border: 1px solid var(--c-line); border-radius: var(--r-sm);
  background: #fbfcfe; font-size: 14.5px; color: var(--c-text);
  transition: border-color .24s, box-shadow .24s, background .24s;
}
.field textarea { height: 130px; padding: 14px 16px; resize: vertical; line-height: 1.7; }
.field select {
  appearance: none; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4.5L6 8.5L10 4.5' stroke='%238b98ad' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 16px center; padding-right: 40px;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--c-primary); background: #fff;
  box-shadow: 0 0 0 3px rgba(18, 102, 241, .12);
}
.field.err input, .field.err textarea, .field.err select { border-color: #f04d4d; background: #fff8f8; }
.field .msg { display: none; font-size: 12.5px; color: #f04d4d; margin-top: 6px; }
.field.err .msg { display: block; }
.form-foot { display: flex; align-items: center; justify-content: space-between; gap: var(--sp-4); flex-wrap: wrap; }
.form-note { font-size: 13px; color: var(--c-text-3); }
.form-ok {
  display: none; align-items: center; gap: 10px; padding: 14px 18px;
  border-radius: var(--r-sm); background: #eafaf0; border: 1px solid #b6ebcd;
  color: #1a7f47; font-size: 14px; margin-bottom: var(--sp-5);
}
.form-ok.show { display: flex; }
.form-ok svg { width: 18px; height: 18px; flex-shrink: 0; }

/* --------------------------------------------------------------------------
   14. 页脚 Footer
   -------------------------------------------------------------------------- */
.site-footer { background: #071022; color: rgba(255, 255, 255, .62); font-size: 14px; }
.footer-top { padding: var(--sp-8) 0 var(--sp-7); }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr 1.2fr; gap: var(--sp-6); }
.footer-brand .brand-name { color: #fff; -webkit-text-fill-color: #fff; }
.footer-brand .brand-sub { color: rgba(255, 255, 255, .38); }
.footer-brand p { margin-top: var(--sp-5); font-size: 13.5px; line-height: 1.95; color: rgba(255, 255, 255, .5); max-width: 330px; }
.footer-col h4 { font-size: 15px; color: #fff; font-weight: 600; margin-bottom: var(--sp-4); }
.footer-col li { margin-bottom: 11px; }
.footer-col a { color: rgba(255, 255, 255, .52); transition: color .22s, padding-left .22s; font-size: 13.5px; }
.footer-col a:hover { color: var(--c-accent); padding-left: 5px; }
.footer-col .sub { margin-bottom: 10px; color: rgba(255, 255, 255, .42); font-size: 13px; }
.footer-contact li { display: flex; gap: 9px; margin-bottom: 14px; font-size: 13.5px; line-height: 1.7; }
.footer-contact svg { width: 15px; height: 15px; color: var(--c-accent); flex-shrink: 0; margin-top: 4px; }
.footer-qr { display: flex; gap: 14px; margin-top: var(--sp-5); }
.footer-qr figure { text-align: center; }
.footer-qr img { width: 96px; height: 96px; background: #fff; padding: 6px; border-radius: var(--r-sm); }
.footer-qr figcaption { font-size: 12px; color: rgba(255, 255, 255, .45); margin-top: 8px; }

.footer-bar {
  border-top: 1px solid rgba(255, 255, 255, .09); padding: var(--sp-5) 0;
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: var(--sp-4);
  font-size: 13px; color: rgba(255, 255, 255, .42);
}
.footer-bar .links { display: flex; gap: 22px; flex-wrap: wrap; }
.footer-bar a:hover { color: var(--c-accent); }

.footer-srv {
  border-top: 1px solid rgba(255, 255, 255, .09);
  display: grid; grid-template-columns: repeat(3, 1fr);
}
.footer-srv div {
  padding: var(--sp-6) 0; text-align: center;
  border-right: 1px solid rgba(255, 255, 255, .09);
}
.footer-srv div:last-child { border-right: 0; }
.footer-srv .ic { display: flex; align-items: center; justify-content: center; gap: 10px; color: #fff; font-size: 15px; font-weight: 500; }
.footer-srv .ic svg { width: 22px; height: 22px; color: var(--c-accent); }

/* --------------------------------------------------------------------------
   15. 内页横幅 Inner Banner
   -------------------------------------------------------------------------- */
.page-banner {
  position: relative; overflow: hidden; padding: var(--sp-9) 0 var(--sp-8);
  background: var(--g-hero); text-align: center;
}
.page-banner::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(800px 400px at 50% 0%, rgba(0, 194, 255, .24), transparent 62%),
    radial-gradient(600px 340px at 18% 90%, rgba(18, 102, 241, .3), transparent 64%);
}
.page-banner::after {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(circle at 50% 30%, #000 20%, transparent 76%);
  -webkit-mask-image: radial-gradient(circle at 50% 30%, #000 20%, transparent 76%);
}
.page-banner .wrap { position: relative; z-index: 2; }
.page-banner h1 { font-size: clamp(30px, 4vw, 46px); font-weight: 800; color: #fff; letter-spacing: -.01em; }
.page-banner p { margin-top: var(--sp-4); font-size: 16.5px; color: rgba(255, 255, 255, .7); }
.crumb { margin-top: var(--sp-5); font-size: 13.5px; color: rgba(255, 255, 255, .5); }
.crumb a:hover { color: var(--c-accent); }
.crumb span { margin: 0 8px; opacity: .45; }

/* 标签页 Tabs */
.tabs { display: flex; gap: 6px; justify-content: center; flex-wrap: wrap; margin-top: var(--sp-6); }
.tabs button {
  padding: 10px 26px; border-radius: var(--r-pill); font-size: 14.5px; font-weight: 500;
  color: rgba(255, 255, 255, .72); border: 1px solid rgba(255, 255, 255, .2);
  transition: all .26s;
}
.tabs button:hover { border-color: rgba(255, 255, 255, .5); color: #fff; }
.tabs button.on { background: #fff; color: var(--c-primary); border-color: #fff; font-weight: 600; box-shadow: var(--sh-md); }

/* --------------------------------------------------------------------------
   16. 产品详情页
   -------------------------------------------------------------------------- */
.prod-hero {
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, #f2f7ff 0%, #e8f1ff 55%, #f6fbff 100%);
  padding: var(--sp-9) 0;
}
.prod-hero::before {
  content: ""; position: absolute; right: -8%; top: -30%;
  width: 620px; height: 620px; border-radius: 50%;
  background: radial-gradient(circle, rgba(18, 102, 241, .12), transparent 66%);
}
.prod-hero .wrap { position: relative; z-index: 2; display: grid; grid-template-columns: 1.1fr .9fr; gap: var(--sp-8); align-items: center; }
/* 兼容子页自定义的左右栏命名 */
.prod-hero-left,
.prod-hero-copy { min-width: 0; }
.prod-hero h1 { font-size: clamp(30px, 3.8vw, 46px); font-weight: 800; color: var(--c-ink); letter-spacing: -.02em; }
.prod-hero .desc { margin-top: var(--sp-5); font-size: 16px; line-height: 1.95; color: var(--c-text-2); max-width: 640px; }
.prod-hero .pills { margin-top: var(--sp-6); display: flex; flex-wrap: wrap; gap: 10px; }
.prod-hero .pills span {
  padding: 8px 18px; border-radius: var(--r-pill); font-size: 13.5px; font-weight: 500;
  background: #fff; color: var(--c-primary); border: 1px solid #d6e6ff;
  box-shadow: var(--sh-xs);
}
.prod-hero .acts { margin-top: var(--sp-7); display: flex; gap: 14px; flex-wrap: wrap; }
.prod-hero .media { border-radius: var(--r-xl); overflow: hidden; box-shadow: var(--sh-xl); }

/* 功能模块（左右交替） */
.mod { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-8); align-items: center; }
.mod.reverse .mod-media { order: -1; }
.mod-media { border-radius: var(--r-lg); overflow: hidden; box-shadow: var(--sh-lg); background: var(--c-bg-soft); }
.mod-body h2 { font-size: clamp(22px, 2.6vw, 30px); font-weight: 700; color: var(--c-ink); letter-spacing: -.01em; }
.mod-body .sub { margin-top: var(--sp-3); font-size: 15.5px; color: var(--c-primary); font-weight: 600; }
.mod-body > p { margin-top: var(--sp-4); font-size: 15px; line-height: 1.95; color: var(--c-text-2); }
.mod-points { margin-top: var(--sp-5); display: grid; gap: var(--sp-3); }
.mod-points li { display: flex; gap: 11px; font-size: 14.5px; line-height: 1.8; color: var(--c-text-2); }
.mod-points li::before {
  content: ""; flex-shrink: 0; width: 6px; height: 6px; margin-top: 9px;
  border-radius: 50%; background: var(--g-primary);
}
.mod-points strong { color: var(--c-ink); font-weight: 600; }

/* 卡片矩阵 */
.mini-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-4); }
.mini-card { padding: var(--sp-5); text-align: center; }
.mini-card .ic { width: 52px; height: 52px; margin: 0 auto var(--sp-4); border-radius: var(--r-md); display: grid; place-items: center; background: var(--c-primary-light); }
.mini-card .ic img { width: 28px; height: 28px; object-fit: contain; }
.mini-card h4 { font-size: 15.5px; font-weight: 600; color: var(--c-ink); }
.mini-card p { margin-top: 7px; font-size: 13px; line-height: 1.75; color: var(--c-text-2); }

/* 价值卡 2x2 */
.val-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--sp-5); }
.val-card {
  padding: var(--sp-6); border-radius: var(--r-md);
  border: 1px solid #d6e6ff; background: linear-gradient(140deg, #f7fbff, #eef5ff);
  transition: all .3s var(--ease);
}
.val-card:hover { transform: translateY(-4px); box-shadow: var(--sh-md); border-color: var(--c-primary); }
.val-card .hd { display: flex; align-items: center; gap: var(--sp-3); margin-bottom: var(--sp-3); }
.val-card .ic { width: 42px; height: 42px; border-radius: var(--r-sm); display: grid; place-items: center; background: var(--g-primary); color: #fff; flex-shrink: 0; }
.val-card .ic svg { width: 20px; height: 20px; }
.val-card h4 { font-size: 17px; font-weight: 700; color: var(--c-ink); }
.val-card p { font-size: 14px; line-height: 1.85; color: var(--c-text-2); }

/* 流程条 */
.flow { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-6); counter-reset: fl; }
.flow-step { position: relative; padding-top: var(--sp-6); }
.flow-step::before {
  counter-increment: fl; content: "0" counter(fl);
  font-family: var(--ff-num); font-size: 42px; font-weight: 700;
  color: transparent; -webkit-text-stroke: 1.4px var(--c-primary);
  position: absolute; top: 0; left: 0; line-height: 1;
}
.flow-step h4 { font-size: 19px; font-weight: 700; color: var(--c-ink); }
.flow-step ul { margin-top: var(--sp-3); display: grid; gap: 7px; }
.flow-step li { font-size: 14px; color: var(--c-text-2); padding-left: 16px; position: relative; }
.flow-step li::before {
  content: ""; position: absolute; left: 0; top: 10px;
  width: 5px; height: 5px; border-radius: 50%; background: #c3d4ee;
}

/* --------------------------------------------------------------------------
   17. 业务模式对比
   -------------------------------------------------------------------------- */
.mode-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--sp-6); }
.mode-card {
  border-radius: var(--r-lg); overflow: hidden; background: #fff;
  border: 1px solid var(--c-line); box-shadow: var(--sh-sm);
  transition: all .34s var(--ease); display: flex; flex-direction: column;
}
.mode-card:hover { transform: translateY(-6px); box-shadow: var(--sh-xl); }
.mode-card .thumb { height: 190px; position: relative; overflow: hidden; }
.mode-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease-out); }
.mode-card:hover .thumb img { transform: scale(1.07); }
.mode-card .thumb .ov {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(180deg, rgba(6, 20, 44, .1), rgba(6, 20, 44, .68));
}
.mode-card .thumb .ov h3 { font-size: 26px; font-weight: 800; color: #fff; text-align: center; padding: 0 24px; line-height: 1.4; }
.mode-card .body { padding: var(--sp-6); flex: 1; display: flex; flex-direction: column; }
.mode-card .body > p { font-size: 14.5px; line-height: 1.9; color: var(--c-text-2); flex: 1; }
.mode-card ul { margin-top: var(--sp-5); display: grid; gap: 11px; }
.mode-card ul li { display: flex; gap: 10px; font-size: 14px; color: var(--c-text-2); line-height: 1.7; }
.mode-card ul li b { color: var(--c-ink); font-weight: 600; }
.mode-card ul li::before {
  content: ""; flex-shrink: 0; width: 5px; height: 5px; margin-top: 8px;
  border-radius: 50%; background: var(--g-primary);
}
.mode-card .foot { margin-top: var(--sp-6); padding-top: var(--sp-5); border-top: 1px solid var(--c-line-2); }

/* 对比表 */
.cmp { width: 100%; border-collapse: separate; border-spacing: 0; overflow: hidden; border-radius: var(--r-md); box-shadow: var(--sh-md); }
.cmp th, .cmp td { padding: 17px 22px; text-align: left; font-size: 14.5px; border-bottom: 1px solid var(--c-line-2); }
.cmp thead th { background: var(--c-bg-deep); color: #fff; font-weight: 600; font-size: 15px; }
.cmp tbody tr:nth-child(even) { background: var(--c-bg-soft); }
.cmp tbody tr:hover { background: var(--c-primary-light); }
.cmp td:first-child { font-weight: 600; color: var(--c-ink); white-space: nowrap; }
.cmp .yes { color: var(--c-primary); font-weight: 600; }
.cmp .no { color: var(--c-text-3); }

/* --------------------------------------------------------------------------
   18. 新闻 News
   -------------------------------------------------------------------------- */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-6); }
.news-card { display: flex; flex-direction: column; overflow: hidden; }
.news-card .thumb { height: 200px; position: relative; overflow: hidden; background: var(--c-bg-soft); }
.news-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease-out); }
.news-card:hover .thumb img { transform: scale(1.06); }
.news-card .cat {
  position: absolute; left: 16px; top: 16px; padding: 5px 14px;
  border-radius: var(--r-pill); font-size: 12px; font-weight: 600;
  background: var(--g-primary); color: #fff; backdrop-filter: blur(6px);
}
.news-card .body { padding: var(--sp-5); flex: 1; display: flex; flex-direction: column; }
.news-card h3 { font-size: 17px; font-weight: 700; color: var(--c-ink); line-height: 1.55; transition: color .22s; }
.news-card:hover h3 { color: var(--c-primary); }
.news-card p { margin-top: var(--sp-3); font-size: 13.5px; line-height: 1.8; color: var(--c-text-2); flex: 1;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.news-card .meta { margin-top: var(--sp-4); padding-top: var(--sp-4); border-top: 1px solid var(--c-line-2);
  display: flex; align-items: center; justify-content: space-between; font-size: 12.5px; color: var(--c-text-3); }

/* 时间线 */
.timeline { position: relative; padding-left: 34px; }
.timeline::before {
  content: ""; position: absolute; left: 8px; top: 8px; bottom: 8px; width: 2px;
  background: linear-gradient(var(--c-primary), #cfe0fb);
}
.tl-item { position: relative; padding-bottom: var(--sp-7); }
.tl-item::before {
  content: ""; position: absolute; left: -30px; top: 7px; width: 12px; height: 12px;
  border-radius: 50%; background: #fff; border: 3px solid var(--c-primary);
  box-shadow: 0 0 0 4px rgba(18, 102, 241, .1);
}
.tl-item .yr { font-family: var(--ff-num); font-size: 20px; font-weight: 700; color: var(--c-primary); }
.tl-item h4 { font-size: 17px; font-weight: 700; color: var(--c-ink); margin-top: 3px; }
.tl-item p { margin-top: 7px; font-size: 14px; line-height: 1.85; color: var(--c-text-2); }

/* --------------------------------------------------------------------------
   19. 证书墙 Certifications
   -------------------------------------------------------------------------- */
.cert-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-4); }
.cert {
  aspect-ratio: 3/4; border-radius: var(--r-md); overflow: hidden;
  background: #fff; border: 1px solid var(--c-line);
  box-shadow: var(--sh-sm); transition: all .34s var(--ease);
  display: grid; place-items: center; padding: var(--sp-4);
}
.cert:hover { transform: translateY(-6px) scale(1.02); box-shadow: var(--sh-lg); }
.cert img { max-height: 100%; object-fit: contain; }
.cert .ph { text-align: center; color: var(--c-text-3); font-size: 13px; }
.cert .ph svg { width: 40px; height: 40px; margin: 0 auto 10px; color: #cdd9ea; }

/* --------------------------------------------------------------------------
   20. 数字统计 Stats
   -------------------------------------------------------------------------- */
.stats-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-5); text-align: center; }
.stat .n {
  font-family: var(--ff-num); font-size: clamp(32px, 4vw, 48px); font-weight: 800; line-height: 1;
  background: var(--g-primary); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.stat .n small { font-size: .5em; }
.stat .t { margin-top: var(--sp-3); font-size: 14.5px; color: var(--c-text-2); }
.section-deep .stat .n { background: linear-gradient(180deg, #fff, #8ec9ff); -webkit-background-clip: text; background-clip: text; color: transparent; }
.section-deep .stat .t { color: rgba(255, 255, 255, .6); }

/* --------------------------------------------------------------------------
   21. 滚动动效 Reveal
   -------------------------------------------------------------------------- */
[data-reveal] {
  opacity: 0; transform: translateY(26px);
  transition: opacity .8s var(--ease-out), transform .8s var(--ease-out);
  transition-delay: var(--d, 0ms);
}
[data-reveal].in { opacity: 1; transform: none; }
[data-reveal="left"] { transform: translateX(-30px); }
[data-reveal="right"] { transform: translateX(30px); }
[data-reveal="scale"] { transform: scale(.94); }
[data-reveal].in { transform: none; }

/* 悬浮光斑 */
.spot { position: absolute; border-radius: 50%; pointer-events: none; filter: blur(40px); opacity: .5; }
.spot-1 { width: 260px; height: 260px; background: rgba(18, 102, 241, .16); top: 8%; left: -60px; }
.spot-2 { width: 200px; height: 200px; background: rgba(0, 194, 255, .14); bottom: 6%; right: 4%; }

/* --------------------------------------------------------------------------
   22. 工具类 Utilities
   -------------------------------------------------------------------------- */
.t-center { text-align: center; }
.t-right { text-align: right; }
.mt-4 { margin-top: var(--sp-4); }
.mt-5 { margin-top: var(--sp-5); }
.mt-6 { margin-top: var(--sp-6); }
.mt-7 { margin-top: var(--sp-7); }
.mt-8 { margin-top: var(--sp-8); }
.mb-5 { margin-bottom: var(--sp-5); }
.mb-6 { margin-bottom: var(--sp-6); }
.mb-7 { margin-bottom: var(--sp-7); }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.gap-4 { gap: var(--sp-4); }
.gap-5 { gap: var(--sp-5); }
.flex-wrap { flex-wrap: wrap; }
.serif-num { font-family: var(--ff-num); }
.muted { color: var(--c-text-2); }
.muted-3 { color: var(--c-text-3); }
.fw-600 { font-weight: 600; }
.fw-700 { font-weight: 700; }
.fs-14 { font-size: 14px; }
.fs-15 { font-size: 15px; }
.fs-17 { font-size: 17px; }
.lh-19 { line-height: 1.9; }
.relative { position: relative; }
.overflow-hidden { overflow: hidden; }
.hide { display: none !important; }

/* 分隔 */
.hr { height: 1px; background: var(--c-line); border: 0; margin: 0; }

/* 面包屑导航（内页） */
.page-hero-simple {
  background: linear-gradient(135deg, #f4f8ff, #eaf2ff);
  padding: var(--sp-8) 0 var(--sp-7); text-align: center;
}
.page-hero-simple h1 { font-size: clamp(26px, 3.4vw, 38px); font-weight: 800; color: var(--c-ink); }
.page-hero-simple p { margin-top: var(--sp-3); color: var(--c-text-2); font-size: 16px; }
.page-hero-simple .crumb { color: var(--c-text-3); }

/* 返回顶部 */
.to-top {
  position: fixed; right: 26px; bottom: 30px; z-index: 800;
  width: 46px; height: 46px; border-radius: 50%;
  background: var(--c-primary); color: #fff; display: grid; place-items: center;
  box-shadow: var(--sh-primary); opacity: 0; visibility: hidden;
  transform: translateY(12px); transition: all .3s var(--ease);
}
.to-top.show { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { background: var(--c-primary-dark); transform: translateY(-3px); }
.to-top svg { width: 20px; height: 20px; }

/* 悬浮咨询条 */
.float-bar {
  position: fixed; right: 0; top: 50%; transform: translateY(-50%); z-index: 850;
  display: flex; flex-direction: column; gap: 2px;
}
.float-bar a {
  width: 52px; height: 52px; background: #fff; border: 1px solid var(--c-line);
  display: grid; place-items: center; color: var(--c-text-2);
  transition: all .24s; position: relative;
}
.float-bar a:first-child { border-radius: var(--r-sm) var(--r-sm) 0 0; }
.float-bar a:last-child { border-radius: 0 0 var(--r-sm) var(--r-sm); }
.float-bar a:hover { background: var(--c-primary); color: #fff; border-color: var(--c-primary); }
.float-bar a svg { width: 21px; height: 21px; }
.float-bar a .tip {
  position: absolute; right: calc(100% + 10px); top: 50%; transform: translateY(-50%);
  background: var(--c-ink); color: #fff; font-size: 12.5px; padding: 7px 12px;
  border-radius: var(--r-xs); white-space: nowrap; opacity: 0; pointer-events: none;
  transition: opacity .22s;
}
.float-bar a:hover .tip { opacity: 1; }

/* --------------------------------------------------------------------------
   24. 组件扩展：子页自定义结构
   -------------------------------------------------------------------------- */

/* 产品页面包屑 */
.pd-crumb {
  margin-top: var(--sp-5); font-size: 13.5px; color: var(--c-text-3);
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
}
.pd-crumb a { color: var(--c-primary); transition: color .22s; }
.pd-crumb a:hover { color: var(--c-primary-dark); }

/* 数据面板 */
.data-block {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--r-lg);
  padding: var(--sp-6); box-shadow: var(--sh-sm);
}
.data-head {
  display: flex; align-items: center; justify-content: space-between; gap: var(--sp-4);
  margin-bottom: var(--sp-5); padding-bottom: var(--sp-4);
  border-bottom: 1px solid var(--c-line-2); flex-wrap: wrap;
}
.data-head h3 { font-size: 19px; font-weight: 700; color: var(--c-ink); }
.data-head .sub { font-size: 14px; color: var(--c-text-2); }
.data-row {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--sp-4);
}
.data-row > div {
  padding: var(--sp-4); border-radius: var(--r-sm); background: var(--c-bg-soft);
}
.data-row .k { font-size: 13px; color: var(--c-text-2); }
.data-row .v {
  margin-top: 6px; font-family: var(--ff-num); font-size: 22px; font-weight: 700;
  color: var(--c-primary);
}

/* 截图/演示框 */
.shot-main {
  border-radius: var(--r-md); overflow: hidden; background: var(--c-bg-soft);
  box-shadow: var(--sh-md);
}
.shot-main img { width: 100%; height: auto; display: block; }
.shot-sub {
  margin-top: var(--sp-4); display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--sp-3);
}
.shot-sub figure {
  border-radius: var(--r-sm); overflow: hidden; background: var(--c-bg-soft);
  border: 1px solid var(--c-line);
}
.shot-sub img { width: 100%; height: auto; display: block; }
.shot-sub figcaption {
  padding: 9px 12px; font-size: 12.5px; color: var(--c-text-2);
  background: #fff; border-top: 1px solid var(--c-line-2);
}

/* 纵向堆叠容器 */
.stack { display: flex; flex-direction: column; gap: var(--sp-4); }
.stack > * { width: 100%; }

/* 双栏布局（子页自定义） */
.duo { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--sp-5); }
.duo-col {
  padding: var(--sp-5); border-radius: var(--r-md);
  background: #fff; border: 1px solid var(--c-line);
}
.duo-col h4 { font-size: 17px; font-weight: 700; color: var(--c-ink); margin-bottom: var(--sp-3); }
.duo-col p { font-size: 14px; line-height: 1.85; color: var(--c-text-2); }
.duo-col ul { display: grid; gap: 9px; }
.duo-col li { font-size: 14px; color: var(--c-text-2); padding-left: 16px; position: relative; line-height: 1.75; }
.duo-col li::before {
  content: ""; position: absolute; left: 0; top: 9px;
  width: 5px; height: 5px; border-radius: 50%; background: var(--c-primary);
}

/* 首屏小标签 */
.ph-eyebrow {
  display: inline-block; font-size: 12px; font-weight: 700;
  letter-spacing: .22em; color: var(--c-primary); text-transform: uppercase;
  margin-bottom: var(--sp-3);
}

@media (max-width: 860px) {
  .duo { grid-template-columns: 1fr; }
}

/* --------------------------------------------------------------------------
   25. 响应式 Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 1200px) {
  .nav-link { padding: 0 13px; font-size: 14.5px; }
  .nav-link::after { left: 13px; right: 13px; }
  .prod-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; }
  .footer-contact { grid-column: 1 / -1; }
  .footer-qr { margin-top: var(--sp-4); }
}

@media (max-width: 1024px) {
  .section { padding: var(--sp-8) 0; }
  .hero { min-height: auto; padding: var(--sp-8) 0 var(--sp-9); }
  .hero-inner { grid-template-columns: 1fr; gap: var(--sp-7); }
  .hero-visual { max-width: 560px; margin: 0 auto; width: 100%; }
  .hero-float.f1 { left: 8px; }
  .hero-float.f2 { right: 8px; }
  .prod-grid { grid-template-columns: repeat(2, 1fr); }
  .mini-grid { grid-template-columns: repeat(3, 1fr); }
  .adv-grid, .svc-grid { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-wrap { grid-template-columns: 1fr; gap: var(--sp-7); }
  .prod-hero .wrap { grid-template-columns: 1fr; gap: var(--sp-6); }
  .mod { grid-template-columns: 1fr; gap: var(--sp-6); }
  .mod.reverse .mod-media { order: 0; }
  .hps-top { grid-template-columns: 1fr; gap: var(--sp-6); }
  .hps-cols { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: repeat(3, 1fr); }
  .stats-row { grid-template-columns: repeat(2, 1fr); gap: var(--sp-6); }
  .flow { grid-template-columns: 1fr; gap: var(--sp-5); }
  .case-slide { grid-template-columns: 1fr; }
  .case-media { min-height: 280px; order: -1; }
  .case-info { padding: var(--sp-6); }
}

@media (max-width: 860px) {
  .topbar { display: none; }
  .site-header .wrap { height: 66px; }
  .nav-toggle { display: flex; }
  .nav {
    position: fixed; inset: 66px 0 auto; top: 66px;
    flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; padding: 10px 20px 24px;
    max-height: calc(100vh - 66px); overflow-y: auto;
    box-shadow: var(--sh-lg); border-top: 1px solid var(--c-line);
    transform: translateY(-12px); opacity: 0; visibility: hidden;
    transition: all .3s var(--ease);
  }
  .nav.open { transform: none; opacity: 1; visibility: visible; }
  .nav-item { border-bottom: 1px solid var(--c-line-2); }
  .nav-link { height: 54px; padding: 0 4px; font-size: 15.5px; }
  .nav-link::after { display: none; }
  .nav-item.active .nav-link, .nav-item:hover .nav-link { color: var(--c-primary); }
  .dropdown {
    position: static; transform: none; opacity: 1; visibility: visible; pointer-events: auto;
    box-shadow: none; border: 0; border-left: 2px solid var(--c-primary-light);
    border-radius: 0; margin: 0 0 10px 12px; padding: 6px 0 6px 14px;
    max-height: 0; overflow: hidden; transition: max-height .34s var(--ease);
  }
  /* 移动端由 JS 的 .sub-open 类控制展开，避免 hover 残留 */
  .nav-item.sub-open .dropdown,
  .nav-item:hover .dropdown { max-height: 620px; }
  .mega { min-width: 0; padding: 0; }
  .mega-grid { grid-template-columns: 1fr; }
  .header-cta .hotline { display: none; }
  .header-cta .btn { height: 40px; padding: 0 20px; font-size: 14px; }
  .brand-name { font-size: 18px; }
  .brand img { width: 34px; height: 34px; }
  .wrap { padding: 0 20px; }
  .float-bar { display: none; }
  .to-top { right: 16px; bottom: 18px; }
}

@media (max-width: 640px) {
  body { font-size: 14.5px; }
  .section { padding: var(--sp-7) 0; }
  .prod-grid, .adv-grid, .svc-grid, .news-grid, .mini-grid,
  .triad, .g-2, .g-3, .g-4, .g-5 { grid-template-columns: 1fr; }
  .val-grid, .mode-cards { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .form-card { padding: var(--sp-5); }
  .contact-qr { flex-direction: column; text-align: center; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-srv { grid-template-columns: 1fr; }
  .footer-srv div { border-right: 0; border-bottom: 1px solid rgba(255, 255, 255, .09); }
  .hero-actions .btn { flex: 1; }
  .hero-stats { gap: var(--sp-5); }
  .hero-stat .n { font-size: 27px; }
  .case-nav { width: 38px; height: 38px; }
  .case-nav.prev { left: 8px; }
  .case-nav.next { right: 8px; }
  .sec-head { margin-bottom: var(--sp-6); }
  .cmp { font-size: 13px; }
  .cmp th, .cmp td { padding: 12px 14px; }
  .timeline { padding-left: 26px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
}