/* ==========================================================================
   东莞市跨境信息科技有限公司 · 官网样式
   主题：浅色 + 青蓝点缀
   零依赖 · 纯静态 · 所有主题色集中在 :root 变量
   ========================================================================== */

/* ---------- 1. 设计变量 ---------- */
:root {
  /* 背景 */
  --bg: #f4f7fc;
  --bg-deep: #eaf0f9;

  /* 面板 */
  --panel: #ffffff;
  --panel-solid: #ffffff;
  --panel-hi: #f3f7fd;

  /* 描边 */
  --line: rgba(2, 132, 199, 0.28);
  --line-2: rgba(15, 23, 42, 0.11);
  --line-3: rgba(15, 23, 42, 0.065);

  /* 品牌色 */
  --cyan: #0369a1;
  --cyan-soft: rgba(3, 105, 161, 0.08);
  --blue: #2563eb;
  --blue-deep: #1d4ed8;
  --grad: linear-gradient(135deg, #0369a1 0%, #1d4ed8 100%);
  --grad-soft: linear-gradient(135deg, rgba(2, 132, 199, 0.10), rgba(37, 99, 235, 0.05));

  /* 文字 */
  --text: #0f1f38;
  --text-2: #46566f;
  --text-3: #5d6b80;
  --ink: #ffffff;

  /* 尺寸 */
  --radius: 18px;
  --radius-sm: 12px;
  --radius-xs: 10px;
  --nav-h: 72px;
  --maxw: 1200px;

  /* 阴影 / 光晕 */
  --shadow: 0 20px 44px -26px rgba(15, 23, 42, 0.20);
  --glow: 0 16px 40px -18px rgba(2, 132, 199, 0.28);

  /* 动效 */
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 24px);
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.78;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-wrap: break-word;
  -webkit-tap-highlight-color: transparent;
}

img, svg { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; }
ul { margin: 0; padding: 0; list-style: none; }
button { font: inherit; }

::selection { background: rgba(2, 132, 199, 0.18); color: inherit; }

/* 滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: #e9eef7; }
::-webkit-scrollbar-thumb {
  background: rgba(2, 132, 199, 0.26);
  border-radius: 8px;
  border: 2px solid #e9eef7;
}
::-webkit-scrollbar-thumb:hover { background: rgba(2, 132, 199, 0.32); }

/* ---------- 3. 背景层（网格 + 光晕） ---------- */
body::before {
  content: "";
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(900px 620px at 10% -6%, rgba(37, 99, 235, 0.10), rgba(37, 99, 235, 0) 62%),
    radial-gradient(820px 540px at 92% 6%, rgba(2, 132, 199, 0.10), rgba(2, 132, 199, 0) 64%),
    radial-gradient(1100px 720px at 50% 110%, rgba(37, 99, 235, 0.07), rgba(37, 99, 235, 0) 62%),
    linear-gradient(180deg, #f4f7fc 0%, #eef3fa 55%, #f4f7fc 100%);
}

body::after {
  content: "";
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(15, 23, 42, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 23, 42, 0.05) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(ellipse 95% 65% at 50% 0%, #000 25%, transparent 78%);
  mask-image: radial-gradient(ellipse 95% 65% at 50% 0%, #000 25%, transparent 78%);
}

/* ---------- 4. 排版 ---------- */
h1, h2, h3, h4, h5 {
  margin: 0;
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--text);
}
h1 { font-size: clamp(32px, 5vw, 56px); letter-spacing: -0.025em; }
h2 { font-size: clamp(26px, 3.4vw, 40px); letter-spacing: -0.02em; }
h3 { font-size: clamp(19px, 2vw, 23px); }
p { margin: 0; }

.grad-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead {
  font-size: clamp(15.5px, 1.35vw, 17.5px);
  color: var(--text-2);
  line-height: 1.85;
}

/* ---------- 5. 布局 ---------- */
.container {
  width: min(100% - 48px, var(--maxw));
  margin-inline: auto;
  padding-inline: env(safe-area-inset-left) env(safe-area-inset-right);
}

.section { padding: clamp(44px, 4.2vw, 64px) 0; position: relative; }
.section--tight { padding: clamp(32px, 3.2vw, 48px) 0; }

.sec-head { max-width: 760px; margin: 0 auto clamp(30px, 3.4vw, 46px); text-align: center; }
.sec-head--left { margin-inline: 0; text-align: left; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px 6px 10px;
  margin-bottom: 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--grad-soft);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--cyan);
  text-transform: uppercase;
}
.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px 2px rgba(2, 132, 199, 0.35);
}

.sec-sub { margin-top: 16px; }

/* ---------- 6. 导航 ---------- */
.site-nav {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  inset: 0 0 auto 0;
  height: var(--nav-h);
  z-index: 100;
  background: rgba(255, 255, 255, 0.80);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition: background 0.35s var(--ease), border-color 0.35s var(--ease),
    box-shadow 0.35s var(--ease);
}
.site-nav.is-scrolled {
  background: rgba(255, 255, 255, 0.92);
  border-bottom-color: var(--line-2);
  box-shadow: 0 14px 34px -26px rgba(15, 23, 42, 0.14);
}

.nav-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
  color: var(--text);
  flex-shrink: 0;
}
.brand-mark {
  flex: none;
  width: 38px;
  height: 38px;
  display: block;
}
/* Logo 自带圆角深色底，直接铺满即可（圆角在 SVG 内已绘制） */
.brand-mark img { width: 100%; height: 100%; display: block; }
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-text b { font-size: 15.5px; font-weight: 700; letter-spacing: 0.01em; }
.brand-text em {
  font-style: normal;
  font-size: 9.5px;
  letter-spacing: 0.24em;
  color: var(--text-3);
  text-transform: uppercase;
}

.nav-links { display: flex; align-items: center; gap: 2px; }
.nav-links a {
  padding: 9px 16px;
  border-radius: 999px;
  font-size: 14.5px;
  color: var(--text-2);
  text-decoration: none;
  transition: color 0.25s var(--ease), background 0.25s var(--ease);
}
.nav-links a:hover { color: var(--text); background: rgba(2, 132, 199, 0.07); }
.nav-links a.is-active {
  color: var(--blue-deep);
  background: rgba(2, 132, 199, 0.12);
  box-shadow: inset 0 0 0 1px var(--line);
}

.nav-right { display: flex; align-items: center; gap: 12px; }
.nav-right .btn { padding: 10px 20px; font-size: 14px; }

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 11px;
  border: 1px solid var(--line-2);
  background: rgba(15, 23, 42, 0.045);
  cursor: pointer;
  position: relative;
}
.nav-toggle span,
.nav-toggle::before,
.nav-toggle::after {
  content: "";
  position: absolute;
  left: 50%;
  width: 18px;
  height: 1.8px;
  border-radius: 2px;
  background: var(--text);
  transform: translateX(-50%);
  transition: transform 0.3s var(--ease), opacity 0.2s var(--ease);
}
.nav-toggle::before { top: 15px; }
.nav-toggle span { top: 20px; }
.nav-toggle::after { top: 25px; }
.nav-toggle.is-open::before { transform: translateX(-50%) translateY(5px) rotate(45deg); }
.nav-toggle.is-open::after { transform: translateX(-50%) translateY(-5px) rotate(-45deg); }
.nav-toggle.is-open span { opacity: 0; }

/* ---------- 7. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 13px 26px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease),
    background 0.3s var(--ease), border-color 0.3s var(--ease), color 0.3s var(--ease);
}
.btn svg { width: 16px; height: 16px; }

.btn-primary {
  background: var(--grad);
  color: var(--ink);
  box-shadow: 0 14px 34px -16px rgba(37, 99, 235, 0.30);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 22px 46px -16px rgba(37, 99, 235, 0.32);
}

.btn-ghost {
  background: rgba(15, 23, 42, 0.045);
  border-color: var(--line-2);
  color: var(--text);
}
.btn-ghost:hover {
  transform: translateY(-2px);
  border-color: var(--line);
  background: rgba(2, 132, 199, 0.07);
  color: var(--blue-deep);
}

.btn-sm { padding: 10px 20px; font-size: 14px; }
.btn-block { width: 100%; }

.btn-row { display: flex; flex-wrap: wrap; gap: 14px; }

/* ---------- 8. 首页 Hero ---------- */
.hero { position: relative; padding: calc(var(--nav-h) + clamp(48px, 6.5vw, 84px)) 0 clamp(40px, 4.6vw, 64px); }
.hero-grid {
  display: grid;
  grid-template-columns: 1.06fr 0.94fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
}
.hero h1 { margin: 20px 0 22px; }
.hero .lead { max-width: 560px; }
.hero .btn-row { margin-top: 36px; }

.hero-note {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 30px;
  font-size: 13px;
  color: var(--text-3);
}
.hero-note::before {
  content: "";
  flex: none;
  width: 26px;
  height: 1px;
  background: linear-gradient(90deg, var(--cyan), rgba(2, 132, 199, 0));
}

/* Hero 视觉：能力底座轨道图 */
.hero-visual { position: relative; display: grid; place-items: center; }
.orbit { width: 100%; max-width: 460px; overflow: visible; }
.orbit .ring { fill: none; stroke: rgba(15, 23, 42, 0.16); }
.orbit .ring--dash { stroke-dasharray: 3 7; }
.orbit .ring-core { fill: none; stroke: url(#orbitGrad); stroke-width: 1.4; opacity: 0.9; }
.orbit .node-dot { fill: var(--cyan); }
.orbit .node-halo { fill: rgba(2, 132, 199, 0.14); }
.orbit .spin { transform-origin: 200px 200px; animation: spin 34s linear infinite; }
.orbit .spin-rev { transform-origin: 200px 200px; animation: spin 52s linear infinite reverse; }

@keyframes spin { to { transform: rotate(360deg); } }

.orbit-core-label { fill: var(--text); font-size: 15px; font-weight: 700; text-anchor: middle; }
.orbit-core-sub { fill: var(--text-2); font-size: 9.5px; text-anchor: middle; letter-spacing: 0.08em; }

.hero-chip {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 16px;
  border-radius: 13px;
  background: #ffffff;
  border: 1px solid var(--line);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
  font-size: 13px;
  color: var(--text-2);
  animation: float 6.5s ease-in-out infinite;
}
.hero-chip b { display: block; font-size: 15px; color: var(--text); line-height: 1.3; }
.hero-chip i {
  font-style: normal;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--text-3);
}
.hero-chip--a { top: 4%; left: -4%; }
.hero-chip--b { bottom: 6%; right: -3%; animation-delay: -3.2s; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ---------- 9. 数据条 ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  background: var(--line-2);
  overflow: hidden;
}
.stat {
  padding: 30px 24px;
  background: #f6f9fe;
  text-align: center;
}
.stat b {
  display: block;
  font-size: clamp(28px, 3.4vw, 40px);
  font-weight: 700;
  line-height: 1.1;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat span { display: block; margin-top: 8px; font-size: 13.5px; color: var(--text-2); }

/* ---------- 10. 通用卡片网格 ---------- */
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  position: relative;
  padding: 28px;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  background: linear-gradient(158deg, #ffffff, #f6f9fe);
  overflow: hidden;
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease),
    box-shadow 0.4s var(--ease);
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(320px 180px at 100% 0%, rgba(2, 132, 199, 0.10), rgba(2, 132, 199, 0) 70%);
  opacity: 0;
  transition: opacity 0.4s var(--ease);
  pointer-events: none;
}
.card:hover {
  transform: translateY(-5px);
  border-color: var(--line);
  box-shadow: var(--glow);
}
.card:hover::before { opacity: 1; }

.card-icon {
  width: 46px;
  height: 46px;
  margin-bottom: 18px;
  border-radius: 13px;
  display: grid;
  place-items: center;
  background: var(--grad-soft);
  border: 1px solid var(--line);
  color: var(--cyan);
}
.card-icon svg { width: 22px; height: 22px; }

.card h3 { margin-bottom: 10px; }
.card p { font-size: 14.5px; color: var(--text-2); }

/* ---------- 11. 产品卡片（首页矩阵） ---------- */
.prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

.prod-card {
  display: flex;
  flex-direction: column;
  padding: 28px 26px 24px;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  background: linear-gradient(160deg, #ffffff, #f6f9fe);
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease),
    box-shadow 0.4s var(--ease);
}
.prod-card:hover { transform: translateY(-6px); border-color: var(--line); box-shadow: var(--glow); }

.prod-card-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.prod-idx {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--cyan);
  padding: 5px 11px;
  border-radius: 999px;
  background: var(--cyan-soft);
  border: 1px solid var(--line);
}
.prod-card-top svg { width: 20px; height: 20px; color: var(--text-3); transition: transform 0.4s var(--ease), color 0.4s var(--ease); }
.prod-card:hover .prod-card-top svg { color: var(--cyan); transform: translate(3px, -3px); }

.prod-card h3 { font-size: 20px; margin-bottom: 8px; }
.prod-card > p { font-size: 14px; color: var(--text-2); }

.prod-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 18px; }
.prod-tags li {
  font-size: 12px;
  color: var(--text-2);
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid var(--line-3);
  background: rgba(15, 23, 42, 0.04);
}

.prod-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--line-3);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--cyan);
}

/* ---------- 12. 能力底座 ---------- */
.cap-list { display: grid; gap: 16px; }
.cap {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 20px;
  padding: 24px 26px;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  background: linear-gradient(120deg, #ffffff, #f6f9fe);
  transition: border-color 0.4s var(--ease), background 0.4s var(--ease), transform 0.4s var(--ease);
}
.cap:hover { border-color: var(--line); transform: translateX(4px); }
.cap-ico {
  width: 54px;
  height: 54px;
  border-radius: 15px;
  display: grid;
  place-items: center;
  background: var(--grad-soft);
  border: 1px solid var(--line);
  color: var(--cyan);
}
.cap-ico svg { width: 25px; height: 25px; }
.cap h3 { font-size: 18px; margin-bottom: 6px; }
.cap p { font-size: 14.5px; color: var(--text-2); }
.cap-keywords { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.cap-keywords li {
  font-size: 12.5px;
  color: var(--cyan);
  padding: 2px 10px;
  border-radius: 6px;
  background: rgba(2, 132, 199, 0.07);
  border: 1px solid var(--line-3);
}

/* ---------- 13. 服务对象 ---------- */
.role-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.role {
  padding: 26px 22px;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  background: #ffffff;
  text-align: center;
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease);
}
.role:hover { transform: translateY(-4px); border-color: var(--line); }
.role-ico {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: var(--grad-soft);
  border: 1px solid var(--line);
  color: var(--cyan);
}
.role-ico svg { width: 23px; height: 23px; }
.role h4 { font-size: 16px; margin-bottom: 8px; }
.role p { font-size: 13.5px; color: var(--text-2); }

/* ---------- 14. 为什么选择我们 ---------- */
.why-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.why {
  display: flex;
  gap: 18px;
  padding: 26px;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  background: linear-gradient(140deg, #ffffff, #f6f9fe);
}
.why-num {
  flex: none;
  font-size: 22px;
  font-weight: 700;
  line-height: 1.3;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.why h3 { font-size: 17.5px; margin-bottom: 8px; }
.why p { font-size: 14.5px; color: var(--text-2); }

/* ---------- 15. CTA 横幅 ---------- */
.cta-band {
  position: relative;
  padding: clamp(40px, 5vw, 60px);
  border: 1px solid var(--line);
  border-radius: 24px;
  background:
    radial-gradient(600px 260px at 12% 0%, rgba(2, 132, 199, 0.14), rgba(2, 132, 199, 0) 68%),
    radial-gradient(600px 300px at 92% 100%, rgba(37, 99, 235, 0.10), rgba(37, 99, 235, 0) 68%),
    linear-gradient(140deg, #ffffff, #f6f9fe);
  overflow: hidden;
  text-align: center;
}
.cta-band h2 { margin-bottom: 14px; }
.cta-band p { max-width: 620px; margin: 0 auto; color: var(--text-2); }
.cta-band .btn-row { justify-content: center; margin-top: 30px; }

/* ---------- 16. 子页 Hero ---------- */
.page-hero {
  padding: calc(var(--nav-h) + clamp(40px, 5vw, 64px)) 0 clamp(24px, 2.6vw, 36px);
  border-bottom: 1px solid var(--line-3);
}
.page-hero .lead { max-width: 720px; margin-top: 18px; }
.crumb { font-size: 13px; color: var(--text-3); margin-bottom: 16px; }
.crumb a { color: var(--text-3); text-decoration: none; }
.crumb a:hover { color: var(--cyan); }
.crumb span { margin: 0 8px; opacity: 0.5; }

/* ---------- 17. 产品页布局 ---------- */
.prod-layout {
  display: grid;
  grid-template-columns: 216px minmax(0, 1fr);
  gap: clamp(28px, 4vw, 52px);
  align-items: start;
}

.prod-nav { position: sticky; top: calc(var(--nav-h) + 28px); }
.prod-nav-title {
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-3);
  padding: 0 14px 12px;
}
.prod-nav a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 11px 14px;
  border-left: 2px solid var(--line-3);
  font-size: 14px;
  color: var(--text-2);
  text-decoration: none;
  transition: color 0.28s var(--ease), border-color 0.28s var(--ease), background 0.28s var(--ease);
}
.prod-nav a i { font-style: normal; font-size: 11px; color: var(--text-3); }
.prod-nav a:hover { color: var(--text); border-left-color: var(--line); }
.prod-nav a.is-active {
  color: var(--blue-deep);
  border-left-color: var(--cyan);
  background: linear-gradient(90deg, rgba(2, 132, 199, 0.10), rgba(2, 132, 199, 0));
}
.prod-nav a.is-active i { color: var(--cyan); }

.prod {
  padding: clamp(26px, 3vw, 38px);
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  background: linear-gradient(158deg, #ffffff, #f6f9fe);
  scroll-margin-top: calc(var(--nav-h) + 24px);
}
.prod + .prod { margin-top: 26px; }

.prod-head { display: flex; align-items: flex-start; gap: 18px; padding-bottom: 22px; border-bottom: 1px solid var(--line-3); }
.prod-badge {
  flex: none;
  width: 46px;
  height: 46px;
  border-radius: 13px;
  display: grid;
  place-items: center;
  font-size: 16px;
  font-weight: 700;
  color: var(--cyan);
  background: var(--cyan-soft);
  border: 1px solid var(--line);
}
.prod-head h2 { font-size: clamp(21px, 2.4vw, 27px); }
.prod-head .prod-tagline { margin-top: 8px; font-size: 14.5px; color: var(--text-2); }

.prod-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 14px;
  margin: 24px 0;
}
.prod-meta div {
  padding: 14px 16px;
  border: 1px solid var(--line-3);
  border-radius: var(--radius-sm);
  background: rgba(15, 23, 42, 0.03);
}
.prod-meta dt {
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 6px;
}
.prod-meta dd { margin: 0; font-size: 14px; color: var(--text); font-weight: 600; }

.prod-body h4 {
  font-size: 13.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 26px 0 14px;
}

.feat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.feat {
  padding: 14px 16px;
  border: 1px solid var(--line-3);
  border-radius: var(--radius-sm);
  background: rgba(15, 23, 42, 0.025);
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}
.feat:hover { border-color: var(--line); background: rgba(2, 132, 199, 0.045); }
.feat b { display: block; font-size: 14.5px; color: var(--text); margin-bottom: 4px; }
.feat span { font-size: 13px; color: var(--text-2); }

.chips { display: flex; flex-wrap: wrap; gap: 9px; }
.chips li {
  font-size: 13px;
  color: var(--text-2);
  padding: 5px 13px;
  border-radius: 999px;
  border: 1px solid var(--line-3);
  background: rgba(15, 23, 42, 0.04);
}
.chips li.on { color: var(--cyan); border-color: var(--line); background: rgba(2, 132, 199, 0.07); }

.value-note {
  margin-top: 24px;
  padding: 16px 20px;
  border-left: 3px solid var(--cyan);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: rgba(2, 132, 199, 0.06);
  font-size: 14.5px;
  color: var(--text);
}
.value-note b { color: var(--cyan); }

/* ---------- 18. 关于我们 ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}
.about-grid p { color: var(--text-2); font-size: 15.5px; }
.about-grid p + p { margin-top: 16px; }

.fact-card {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(150deg, #ffffff, #f6f9fe);
  box-shadow: var(--shadow);
}
.fact-card h3 { font-size: 16px; margin-bottom: 18px; }
.fact-list li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--line-3);
  font-size: 14px;
}
.fact-list li:last-child { border-bottom: 0; }
.fact-list .k { color: var(--text-3); flex: none; }
.fact-list .v { color: var(--text); font-weight: 600; text-align: right; }

.mvv { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.mvv-card {
  padding: 30px 28px;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  background: linear-gradient(160deg, #ffffff, #f6f9fe);
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.mvv-card:hover { transform: translateY(-5px); border-color: var(--line); box-shadow: var(--glow); }
.mvv-label {
  display: inline-block;
  font-size: 11.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 14px;
}
.mvv-card h3 { font-size: 19px; margin-bottom: 12px; }
.mvv-card p { font-size: 14.5px; color: var(--text-2); }

.timeline { position: relative; padding-left: 30px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan), rgba(37, 99, 235, 0.20));
}
.tl-item { position: relative; padding-bottom: 30px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 7px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--cyan);
  box-shadow: 0 0 0 4px rgba(2, 132, 199, 0.10);
}
.tl-item h3 { font-size: 17px; margin-bottom: 8px; }
.tl-item .tl-stage { font-size: 12.5px; letter-spacing: 0.1em; color: var(--cyan); text-transform: uppercase; }
.tl-item p { margin-top: 8px; font-size: 14.5px; color: var(--text-2); }

/* ---------- 19. 联系我们 ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(20px, 2.6vw, 28px);
  align-items: start;
}

.person-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 26px;
  padding: clamp(24px, 2.8vw, 32px);
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  background: linear-gradient(152deg, #ffffff, #f7fafe);
  box-shadow: var(--shadow);
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.person-card:hover { transform: translateY(-4px); border-color: var(--line); box-shadow: var(--glow); }

.person-head { display: flex; align-items: center; gap: 14px; margin-bottom: 24px; }
.person-avatar {
  flex: none;
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 15px;
  background: var(--grad);
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.person-head h3 { font-size: 21px; }
.person-head p { margin-top: 5px; font-size: 13.5px; color: var(--text-2); }

.person-info { display: grid; gap: 16px; }
.person-info li { display: grid; grid-template-columns: 42px minmax(0, 1fr); gap: 13px; align-items: start; }
.person-info .ico {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: var(--grad-soft);
  border: 1px solid var(--line);
  color: var(--cyan);
}
.person-info .ico svg { width: 19px; height: 19px; }
.person-info .label {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 3px;
}
.person-info .value { font-size: 15.5px; font-weight: 600; color: var(--text); word-break: break-all; }
.person-info a { color: inherit; text-decoration: none; transition: color 0.25s var(--ease); }
.person-info a:hover { color: var(--cyan); }

.person-qr { text-align: center; }
.person-qr img {
  width: 148px;
  height: 148px;
  margin: 0 auto 12px;
  padding: 7px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-3);
  background: #fff;
}
.person-qr figcaption { font-size: 12.5px; color: var(--text-3); line-height: 1.5; }

.contact-note {
  margin-top: clamp(24px, 3vw, 32px);
  padding: 20px 24px;
  border: 1px dashed var(--line-3);
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--text-2);
}
.contact-note b { color: var(--text); }

/* ---------- 19.5 行业动态 ---------- */
.news-empty {
  padding: clamp(36px, 5vw, 56px) 28px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  background: linear-gradient(150deg, #ffffff, #f6f9fe);
  text-align: center;
}
.news-empty .card-icon { margin: 0 auto 18px; }
.news-empty h3 { font-size: 20px; margin-bottom: 12px; }
.news-empty p {
  max-width: 620px;
  margin: 0 auto;
  font-size: 14.5px;
  color: var(--text-2);
}
.news-kinds {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin: 24px 0 28px;
}
.news-kinds li {
  padding: 6px 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(2, 132, 199, 0.07);
  font-size: 13.5px;
  color: var(--cyan);
}

.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

.news-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  background: linear-gradient(160deg, #ffffff, #f6f9fe);
  overflow: hidden;
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.news-card:hover { transform: translateY(-5px); border-color: var(--line); box-shadow: var(--glow); }

.news-thumb {
  position: relative;
  min-height: 168px;
  aspect-ratio: 16 / 9;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(2, 132, 199, 0.14), rgba(37, 99, 235, 0.05));
  border-bottom: 1px solid var(--line-3);
  color: var(--cyan);
}
.news-thumb svg { width: 34px; height: 34px; opacity: 0.6; }

.news-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 3px 11px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--line);
  font-size: 11.5px;
  color: var(--text-2);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

.news-body { display: flex; flex-direction: column; flex: 1; padding: 22px; }
.news-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 12.5px;
  color: var(--text-3);
}
.news-cat { font-weight: 600; color: var(--cyan); }
.news-body h3 { font-size: 17px; line-height: 1.45; margin-bottom: 10px; }
.news-body h3 a { color: inherit; text-decoration: none; }
.news-body p { flex: 1; font-size: 14px; color: var(--text-2); }
.news-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--cyan);
  text-decoration: none;
}
.news-more:hover { color: var(--blue-deep); }

/* ---------- 20. 页脚 ---------- */
.site-footer {
  margin-top: clamp(44px, 5vw, 64px);
  padding-top: clamp(40px, 4vw, 56px);
  border-top: 1px solid var(--line-2);
  background: linear-gradient(180deg, rgba(234, 240, 249, 0), rgba(234, 240, 249, 1));
  padding-bottom: env(safe-area-inset-bottom);
}
.foot-grid {
  display: grid;
  grid-template-columns: 1.7fr 1fr 1fr 1.3fr;
  gap: clamp(28px, 4vw, 48px);
  padding-bottom: 40px;
}
.foot-brand p { margin-top: 18px; font-size: 13.5px; color: var(--text-2); max-width: 320px; }
.foot-col h4 {
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 18px;
  font-weight: 600;
}
.foot-col li + li { margin-top: 11px; }
.foot-col a { font-size: 14px; color: var(--text-2); text-decoration: none; transition: color 0.25s var(--ease); }
.foot-col a:hover { color: var(--cyan); }
.foot-col .foot-static { font-size: 14px; color: var(--text-2); }
.foot-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  align-items: center;
  justify-content: space-between;
  padding: 22px 0 30px;
  border-top: 1px solid var(--line-3);
  font-size: 12.5px;
  color: var(--text-3);
}
.foot-bottom a { color: var(--text-3); text-decoration: none; }
.foot-bottom a:hover { color: var(--cyan); }

/* ---------- 21. 滚动渐入 ---------- */
.reveal { transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.js .reveal { opacity: 0; transform: translateY(26px); will-change: opacity, transform; }
.js .reveal.is-visible { opacity: 1; transform: none; }
.reveal-d1 { transition-delay: 0.08s; }
.reveal-d2 { transition-delay: 0.16s; }
.reveal-d3 { transition-delay: 0.24s; }
.reveal-d4 { transition-delay: 0.32s; }

/* 待替换内容标记（可删除该样式与对应 class） */
.tbd { color: var(--cyan); }

/* ---------- 22. 响应式 ---------- */
@media (max-width: 1080px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero .lead { max-width: none; }
  .hero-visual { order: -1; max-width: 420px; margin-inline: auto; gap: 12px; }
  .hero-chip { position: static; animation: none; }
  .prod-grid, .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .nav-links {
    position: fixed;
    top: var(--nav-h);
    right: 0;
    left: 0;
    inset: var(--nav-h) 0 auto 0;
    max-height: calc(100vh - var(--nav-h));
    max-height: calc(100dvh - var(--nav-h));
    overflow-y: auto;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 16px 24px 26px;
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid var(--line-2);
    box-shadow: 0 30px 50px -30px rgba(15, 23, 42, 0.16);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
  }
  .nav-links.is-open { opacity: 1; transform: none; pointer-events: auto; }
  .nav-links a { padding: 13px 16px; border-radius: var(--radius-xs); font-size: 15.5px; }
  .nav-toggle { display: block; }
  .nav-right .btn { display: none; }

  .stats { grid-template-columns: repeat(2, 1fr); }
  .role-grid, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .mvv { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }

  .prod-layout { grid-template-columns: 1fr; }
  .prod-nav {
    position: static;
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 8px;
    scrollbar-width: thin;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x proximity;
  }
  /* 细滚动条：作为「可横向滑动」的提示 */
  .prod-nav::-webkit-scrollbar { height: 4px; }
  .prod-nav::-webkit-scrollbar-track { background: rgba(15, 23, 42, 0.08); border-radius: 4px; border: 0; }
  .prod-nav::-webkit-scrollbar-thumb {
    background: rgba(2, 132, 199, 0.30);
    border: 0;
    border-radius: 4px;
  }
  .prod-nav-title { display: none; }
  .prod-nav a {
    flex: none;
    border-left: 0;
    border: 1px solid var(--line-2);
    border-radius: 999px;
    padding: 12px 18px;
    min-height: 44px;
    align-items: center;
    white-space: nowrap;
    scroll-snap-align: start;
  }
  .prod-nav a.is-active { background: rgba(2, 132, 199, 0.12); border-color: var(--line); }
}

@media (max-width: 640px) {
  .container { width: min(100% - 36px, var(--maxw)); }
  .prod-grid, .grid-2, .grid-3, .grid-4, .role-grid, .news-grid { grid-template-columns: 1fr; }
  .person-card { grid-template-columns: 1fr; gap: 24px; }
  .person-qr { justify-self: center; }
  .stat { padding: 24px 16px; }
  .card, .prod-card { padding: 24px 22px; }
  .cap { grid-template-columns: 1fr; gap: 14px; }
  .foot-grid { grid-template-columns: 1fr; gap: 32px; }
  .brand-text b { font-size: 14.5px; }
  .brand-text em { font-size: 9px; letter-spacing: 0.18em; }
}

/* ---------- 22.5 能力回退（旧版浏览器） ---------- */
@supports not ((backdrop-filter: blur(2px)) or (-webkit-backdrop-filter: blur(2px))) {
  .site-nav { background: rgba(255, 255, 255, 0.97); }
  .hero-chip { background: #ffffff; }
  .news-badge { background: rgba(255, 255, 255, 0.96); }
}

/* 触屏设备的按压反馈 */
.btn:active { transform: translateY(0) scale(0.985); }

/* ---------- 23. 无障碍 / 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .js .reveal { opacity: 1; transform: none; }
}

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 6px;
}