/* ============================================================
   纷析云（杭州）科技有限公司 · 企业官网
   设计系统 v4 · 精准 · 克制 · 信任
   - 单一信任蓝主色（去除紫/金撞色）
   - Space Grotesk（展示/数字）+ Manrope（西文正文）+ 中文系统栈
   - 差异化圆角 · 蓝色调阴影 · 暗色区块噪点质感
   - 聚光卡片 · 磁性按钮 · 无障碍焦点态
   ============================================================ */

/* ============ 设计令牌 ============ */
:root {
  /* —— 中性色（冷调，一致灰系） —— */
  --bg: #fbfcfe;
  --bg-soft: #f4f6fa;
  --surface: #ffffff;
  --surface-2: #eef1f6;
  --ink: #0a1120;
  --text: #3d4657;
  --muted: #667085;
  --line: #e7eaf1;
  --line-strong: #d3d9e4;

  /* —— 品牌色（单一信任蓝，无紫无金） —— */
  --brand: #2563eb;
  --brand-2: #1d4ed8;
  --brand-deep: #1d3fa8;
  --brand-soft: #eef4ff;
  --accent: #0ea5e9;
  --grad: linear-gradient(135deg, #3b82f6 0%, #2563eb 48%, #1d4ed8 100%);
  --grad-soft: linear-gradient(180deg, rgba(37, 99, 235, 0.08), rgba(37, 99, 235, 0));

  /* —— 深色区（深海军蓝，非纯黑） —— */
  --dark: #070d1a;
  --dark-2: #0b1424;
  --dark-3: #101c33;

  /* —— 语义色 —— */
  --ok: #16a34a;
  --warn: #d97706;
  --danger: #dc2626;

  /* —— 圆角（差异化） —— */
  --r-input: 10px;
  --r-btn: 10px;
  --r-card: 16px;
  --r-lg: 22px;
  --r-pill: 999px;

  /* —— 阴影（蓝色调，随背景色相） —— */
  --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.06);
  --shadow-md: 0 12px 32px -12px rgba(16, 40, 80, 0.16);
  --shadow-lg: 0 28px 64px -24px rgba(16, 40, 80, 0.22);
  --shadow-brand: 0 14px 34px -14px rgba(37, 99, 235, 0.55);
  --ring: 0 0 0 4px rgba(37, 99, 235, 0.16);

  /* —— 字体 —— */
  --font-sans: "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC",
    Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-display: "Space Grotesk", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-mono: "SF Mono", "JetBrains Mono", "Menlo", "Consolas", ui-monospace, monospace;

  --maxw: 1200px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ============ 基础 ============ */
* { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; font-size: 15px; }
ul, ol { list-style: none; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--ink);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.18;
  text-wrap: balance;
}

p { text-wrap: pretty; }

::selection { background: rgba(37, 99, 235, 0.18); }

/* 无障碍：焦点环 */
:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
  border-radius: 4px;
}

/* 无障碍：跳过链接 */
.skip-link {
  position: fixed;
  top: -60px;
  left: 16px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--ink);
  color: #fff;
  border-radius: var(--r-btn);
  font-size: 14px;
  font-weight: 600;
  transition: top .25s var(--ease);
}
.skip-link:focus { top: 16px; }

/* 全局噪点纹理（打破扁平，极轻） */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: 0.022;
  mix-blend-mode: multiply;
}

/* ============ 布局容器 ============ */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 32px; }
.section { padding: 120px 0 128px; }
.section-tight { padding: 84px 0; }

/* ============ 导航 ============ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: 68px;
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, box-shadow .3s, background .3s;
}
.nav.scrolled {
  border-bottom-color: var(--line);
  box-shadow: 0 8px 32px -28px rgba(16, 40, 80, 0.4);
  background: rgba(255, 255, 255, 0.86);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }

.brand { display: inline-flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 700; font-size: 18px; color: var(--ink); letter-spacing: -0.02em; }
.brand-mark {
  width: 34px; height: 34px; flex: none;
  display: grid; place-items: center;
  border-radius: 9px;
  background: var(--grad);
  box-shadow: 0 8px 18px -8px rgba(37, 99, 235, 0.6);
}
.brand-en { font-size: 10px; color: var(--muted); font-weight: 600; letter-spacing: .08em; margin-left: 3px; }

.nav-links { display: flex; align-items: center; gap: 2px; }
.nav-links a {
  display: inline-block;
  padding: 8px 14px;
  font-size: 14.5px;
  color: var(--text);
  border-radius: var(--r-btn);
  transition: color .18s, background .18s;
}
.nav-links a:hover { color: var(--ink); background: var(--surface-2); }
.nav-links a.active { color: var(--brand); font-weight: 600; }

.nav-actions { display: flex; align-items: center; gap: 10px; }

.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  border-radius: var(--r-btn);
  border: 1px solid var(--line);
  background: var(--surface);
  place-items: center;
  transition: border-color .18s, background .18s;
}
.nav-toggle:hover { border-color: var(--line-strong); background: var(--surface-2); }
.nav-toggle svg { stroke: var(--ink); }

/* ============ 按钮 ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--r-btn);
  white-space: nowrap;
  letter-spacing: -0.01em;
  transition: transform .18s var(--ease-spring), background .2s, color .2s, box-shadow .22s, border-color .2s, filter .2s;
  will-change: transform;
}
.btn:active { transform: translateY(1px) scale(0.98); }
.btn svg { width: 18px; height: 18px; }

.btn-primary {
  background: var(--grad);
  color: #fff;
  box-shadow: var(--shadow-brand);
}
.btn-primary:hover { filter: brightness(1.06); box-shadow: 0 18px 40px -14px rgba(37, 99, 235, 0.65); transform: translateY(-1px); }

.btn-light { background: #fff; color: var(--ink); box-shadow: 0 10px 24px -16px rgba(0, 0, 0, 0.4); }
.btn-light:hover { background: #f2f5fb; }

.btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--line-strong); }
.btn-ghost:hover { border-color: var(--brand); color: var(--brand); background: var(--brand-soft); }

.btn-ghost-dark { background: transparent; color: #fff; border: 1px solid rgba(255, 255, 255, 0.28); }
.btn-ghost-dark:hover { border-color: rgba(255, 255, 255, 0.6); background: rgba(255, 255, 255, 0.06); }

.btn-sm { padding: 9px 18px; font-size: 14px; }
.btn-lg { padding: 15px 32px; font-size: 16px; }

/* ============ 标签 / eyebrow ============ */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--brand);
  background: var(--brand-soft);
  border-radius: var(--r-pill);
}
.chip .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--brand); }
.chip.dark {
  color: #cfe0ff;
  background: rgba(37, 99, 235, 0.14);
  border: 1px solid rgba(37, 99, 235, 0.28);
}
.chip.dark .dot { background: #8fb4ff; }

.eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--brand);
  margin-bottom: 20px;
}
.eyebrow.dark { color: #8fb4ff; }

/* ============ 区块标题 ============ */
.section-head { max-width: 660px; margin-bottom: 60px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head h2 { font-size: clamp(30px, 3.6vw, 44px); margin-bottom: 16px; }
.section-head p { font-size: 17px; color: var(--muted); }

/* ============ 首页 Hero（深色） ============ */
.hero {
  position: relative;
  padding: 172px 0 128px;
  background: var(--dark);
  color: #c7d2e8;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(820px 540px at 82% -12%, rgba(37, 99, 235, 0.34), transparent 62%),
    radial-gradient(680px 480px at 8% 24%, rgba(14, 165, 233, 0.16), transparent 58%),
    radial-gradient(560px 420px at 55% 118%, rgba(29, 78, 216, 0.26), transparent 62%);
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 54px 54px;
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 40%, transparent 78%);
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 40%, transparent 78%);
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 2; }
.hero-head { text-align: center; max-width: 820px; margin: 0 auto 60px; }
.hero-head h1 {
  font-family: var(--font-display);
  color: #fff;
  font-size: clamp(40px, 5.8vw, 70px);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.12;
  margin: 24px 0 24px;
}
.hero-head h1 .grad {
  background: linear-gradient(110deg, #7fb2ff 0%, #38bdf8 55%, #7fb2ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-sub { font-size: 18px; color: #9fb0cd; max-width: 620px; margin: 0 auto 38px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; }
.hero-note { margin-top: 30px; font-size: 13.5px; color: #7e8dad; }
.hero-note b { color: #d5dff2; font-weight: 600; }
.hero-note .sep { color: #3d4a66; margin: 0 8px; }

/* Hero 产品界面 mockup */
.hero-shot {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
  border-radius: var(--r-lg);
  background: #0d1730;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 60px 140px -50px rgba(0, 0, 0, 0.85), 0 0 0 1px rgba(255, 255, 255, 0.04) inset;
  overflow: hidden;
}
.hero-shot::before {
  content: "";
  position: absolute;
  inset: -40% -20% auto;
  height: 70%;
  background: radial-gradient(60% 100% at 50% 0%, rgba(37, 99, 235, 0.3), transparent 70%);
  pointer-events: none;
}
.shot-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 13px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  background: rgba(255, 255, 255, 0.02);
}
.shot-bar .d { width: 11px; height: 11px; border-radius: 50%; }
.shot-bar .d.r { background: #ff5f57; }
.shot-bar .d.y { background: #febc2e; }
.shot-bar .d.g { background: #28c840; }
.shot-bar .addr {
  flex: 1;
  margin-left: 8px;
  height: 26px;
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  padding: 0 12px;
  font-size: 12px;
  color: #7e8dad;
  font-family: var(--font-mono);
}
.shot-body {
  display: grid;
  grid-template-columns: 172px 1fr;
  min-height: 460px;
  position: relative;
  z-index: 1;
}
.shot-side {
  background: rgba(255, 255, 255, 0.02);
  border-right: 1px solid rgba(255, 255, 255, 0.07);
  padding: 18px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.shot-side .logo {
  display: flex; align-items: center; gap: 8px;
  font-size: 13.5px; font-weight: 700; color: #e6ecf8;
  padding: 6px 10px; margin-bottom: 12px;
}
.shot-side .logo i { width: 20px; height: 20px; border-radius: 6px; background: var(--grad); display: grid; place-items: center; }
.shot-side .mi {
  display: flex; align-items: center; gap: 10px;
  font-size: 13px; color: #93a3c0;
  padding: 9px 10px; border-radius: 8px;
  transition: background .18s, color .18s;
}
.shot-side .mi svg { width: 16px; height: 16px; flex: none; }
.shot-side .mi.on { background: rgba(37, 99, 235, 0.16); color: #cfe0ff; }

.shot-main { padding: 22px 24px; }
.shot-main .greet { font-size: 15px; font-weight: 700; color: #eef2fb; margin-bottom: 4px; }
.shot-main .greet-sub { font-size: 12.5px; color: #71809e; margin-bottom: 20px; }

.shot-metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 22px; }
.shot-metric {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 12px;
  padding: 14px 15px;
}
.shot-metric .l { font-size: 12px; color: #71809e; margin-bottom: 8px; display: flex; justify-content: space-between; align-items: center; }
.shot-metric .l .up { font-size: 10.5px; color: #4ade80; background: rgba(74, 222, 128, 0.12); padding: 1px 7px; border-radius: 999px; }
.shot-metric .v { font-size: 21px; font-weight: 700; color: #fff; font-family: var(--font-display); font-variant-numeric: tabular-nums; letter-spacing: -0.02em; }

.shot-chart { margin-bottom: 22px; }
.shot-chart .cap { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.shot-chart .cap span { font-size: 12.5px; color: #93a3c0; }
.shot-chart .cap b { font-size: 12.5px; color: #4ade80; font-weight: 600; }
.shot-chart svg { width: 100%; height: 132px; }

.shot-list { display: flex; flex-direction: column; }
.shot-list .row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 16px;
  padding: 12px 4px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}
.shot-list .row:last-child { border-bottom: none; }
.shot-list .row .c { display: flex; align-items: center; gap: 11px; font-size: 13px; color: #c3cde2; }
.shot-list .row .c .ic {
  width: 30px; height: 30px; border-radius: 8px;
  display: grid; place-items: center;
  background: rgba(37, 99, 235, 0.16); color: #8fb4ff;
}
.shot-list .row .st { font-size: 11.5px; padding: 2px 9px; border-radius: 999px; }
.shot-list .row .st.ok { background: rgba(74, 222, 128, 0.12); color: #4ade80; }
.shot-list .row .st.wait { background: rgba(254, 188, 46, 0.14); color: #febc2e; }
.shot-list .row .amt { font-family: var(--font-display); font-variant-numeric: tabular-nums; font-weight: 600; color: #eef2fb; font-size: 13px; }

/* ============ 信任条 ============ */
.trust-bar { padding: 48px 0; border-bottom: 1px solid var(--line); background: var(--bg); }
.trust-bar .label {
  text-align: center;
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.04em;
  margin-bottom: 26px;
}
.trust-logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 16px 40px;
}
.trust-logos span {
  font-size: 16px;
  font-weight: 600;
  color: #9aa4b8;
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: color .2s;
}
.trust-logos span:hover { color: var(--ink); }

/* ============ 聚光卡片通用 ============ */
.product-card, .deploy-card, .sol-card, .case-card, .dev-card, .res-card,
.cap-card, .pd-card, .value-card, .contact-card, .quote-card, .honor-card {
  position: relative;
}

/* ============ 产品矩阵 ============ */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.product-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  padding: 32px 28px;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.product-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(360px circle at var(--mx, 50%) var(--my, 0%), rgba(37, 99, 235, 0.07), transparent 42%);
  opacity: 0;
  transition: opacity .3s;
  pointer-events: none;
}
.product-card::after {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--grad);
  opacity: 0;
  transition: opacity .3s;
}
.product-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: var(--line-strong); }
.product-card:hover::before { opacity: 1; }
.product-card:hover::after { opacity: 1; }
.product-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: grid; place-items: center;
  background: var(--brand-soft);
  color: var(--brand);
  margin-bottom: 22px;
  transition: background .25s, color .25s, transform .25s var(--ease);
}
.product-card:hover .product-icon { transform: scale(1.05); }
.product-card h3 { font-size: 18.5px; margin-bottom: 10px; }
.product-card p { font-size: 14.5px; color: var(--muted); margin-bottom: 22px; }
.product-card .link {
  margin-top: auto;
  font-size: 14px;
  font-weight: 600;
  color: var(--brand);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap .2s var(--ease);
}
.product-card:hover .link { gap: 10px; }

/* ============ 数据统计带 ============ */
.stat-band {
  position: relative;
  background: var(--dark);
  padding: 100px 0;
  overflow: hidden;
}
.stat-band::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(720px 420px at 50% 120%, rgba(37, 99, 235, 0.24), transparent 60%),
    radial-gradient(520px 360px at 8% 0%, rgba(14, 165, 233, 0.12), transparent 60%);
}
.stat-band .container { position: relative; }
.stat-band .section-head h2 { color: #fff; }
.stat-band .section-head p { color: #9fb0cd; }
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat-box {
  border: 1px solid rgba(255, 255, 255, 0.09);
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--r-card);
  padding: 32px 28px;
  transition: border-color .25s, background .25s, transform .25s var(--ease);
}
.stat-box:hover { border-color: rgba(255, 255, 255, 0.18); background: rgba(255, 255, 255, 0.05); transform: translateY(-3px); }
.stat-box .num {
  font-family: var(--font-display);
  font-size: 46px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}
.stat-box .num em { font-style: normal; font-size: 22px; color: #8fb4ff; margin-left: 2px; }
.stat-box .cap { font-size: 14px; color: #93a3c0; margin-top: 12px; }

/* ============ 核心优势（分栏） ============ */
.feature-split { display: grid; grid-template-columns: 1fr 1fr; gap: 76px; align-items: center; }
.feature-list { display: flex; flex-direction: column; }
.feature-item { display: flex; gap: 20px; padding: 28px 0; border-top: 1px solid var(--line); }
.feature-item:first-child { border-top: none; }
.feature-item .num {
  flex: none;
  font-family: var(--font-display);
  font-size: 13px;
  color: var(--brand);
  font-weight: 700;
  padding-top: 5px;
  letter-spacing: 0.02em;
}
.feature-item h4 { font-size: 18px; margin-bottom: 8px; }
.feature-item p { font-size: 15px; color: var(--muted); }

.media-panel {
  position: relative;
  background: linear-gradient(160deg, #0b1630, #101c3a);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
  padding: 32px;
  overflow: hidden;
}
.media-panel::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(80% 60% at 20% 0%, rgba(37, 99, 235, 0.28), transparent 60%);
}
.media-panel > * { position: relative; }
.media-panel .tags { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 24px; }
.media-panel .tag {
  font-size: 13px; font-weight: 600;
  padding: 7px 15px;
  border-radius: var(--r-pill);
  color: #cfe0ff;
  background: rgba(37, 99, 235, 0.16);
  border: 1px solid rgba(37, 99, 235, 0.22);
}
.media-panel ul { display: flex; flex-direction: column; gap: 15px; }
.media-panel li { display: flex; align-items: center; gap: 12px; font-size: 15px; color: #c3cde2; }
.media-panel li svg { width: 20px; height: 20px; color: #4ade80; flex: none; }

/* ============ 部署方式 ============ */
.deploy-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.deploy-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  padding: 34px 30px;
  display: flex;
  flex-direction: column;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s;
  overflow: hidden;
}
.deploy-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(360px circle at var(--mx, 50%) var(--my, 0%), rgba(37, 99, 235, 0.07), transparent 42%);
  opacity: 0;
  transition: opacity .3s;
  pointer-events: none;
}
.deploy-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.deploy-card:hover::before { opacity: 1; }
.deploy-card.hl {
  background: linear-gradient(165deg, #101c3a, #0b1428);
  color: #c3cde2;
  border: 1px solid rgba(37, 99, 235, 0.34);
  box-shadow: 0 24px 60px -28px rgba(37, 99, 235, 0.6);
}
.deploy-card.hl h3, .deploy-card.hl p { color: #eef2fb; }
.deploy-card.hl .deploy-icon { background: rgba(37, 99, 235, 0.2); color: #8fb4ff; }
.deploy-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: grid; place-items: center;
  background: var(--brand-soft);
  color: var(--brand);
  margin-bottom: 22px;
}
.deploy-card h3 { font-size: 18.5px; margin-bottom: 12px; }
.deploy-card p { font-size: 14.5px; color: var(--muted); margin-bottom: 20px; }
.deploy-card ul { display: flex; flex-direction: column; gap: 10px; margin-bottom: 28px; }
.deploy-card li { display: flex; align-items: center; gap: 10px; font-size: 14px; }
.deploy-card li svg { width: 17px; height: 17px; color: var(--brand); flex: none; }
.deploy-card.hl li svg { color: #8fb4ff; }
.deploy-card .btn { margin-top: auto; align-self: flex-start; }
.deploy-card.hl .btn { background: #fff; color: var(--ink); box-shadow: none; }
.deploy-card.hl .btn:hover { background: #eaf1ff; }

/* ============ 客户证言 ============ */
.testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.quote-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.quote-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.quote-card .stars { display: flex; gap: 3px; color: #f59e0b; margin-bottom: 16px; }
.quote-card .stars svg { width: 16px; height: 16px; }
.quote-card blockquote { font-size: 15px; color: var(--text); line-height: 1.78; margin-bottom: 24px; }
.quote-card .who { margin-top: auto; display: flex; align-items: center; gap: 12px; }
.quote-card .who .av {
  width: 42px; height: 42px; border-radius: 13px;
  background: var(--grad);
  color: #fff;
  display: grid; place-items: center;
  font-weight: 700; font-size: 15px;
}
.quote-card .who .n { font-size: 14px; font-weight: 700; color: var(--ink); }
.quote-card .who .r { font-size: 12.5px; color: var(--muted); }

/* ============ CTA 横幅 ============ */
.cta-band {
  position: relative;
  background: linear-gradient(150deg, #0b1428, #101c3a);
  border-radius: var(--r-lg);
  padding: 88px 68px;
  color: #fff;
  overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(620px 320px at 85% 0%, rgba(37, 99, 235, 0.4), transparent 60%);
}
.cta-band > * { position: relative; }
.cta-band h2 { color: #fff; font-size: clamp(28px, 3.4vw, 40px); margin-bottom: 14px; }
.cta-band p { color: #a9b6d2; max-width: 560px; margin-bottom: 32px; font-size: 16.5px; }
.cta-band .btn { background: #fff; color: var(--ink); box-shadow: none; }
.cta-band .btn:hover { background: #eaf1ff; }

/* ============ 内页 Hero ============ */
.page-hero {
  position: relative;
  padding: 162px 0 92px;
  background: var(--dark);
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(760px 380px at 82% -10%, rgba(37, 99, 235, 0.3), transparent 60%),
    radial-gradient(600px 360px at 10% 30%, rgba(14, 165, 233, 0.14), transparent 58%);
}
.page-hero::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 54px 54px;
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 50% 0%, #000 30%, transparent 75%);
  mask-image: radial-gradient(ellipse 90% 80% at 50% 0%, #000 30%, transparent 75%);
}
.page-hero .container { position: relative; z-index: 2; }
.page-hero h1 { color: #fff; font-size: clamp(32px, 4.6vw, 52px); margin-bottom: 18px; }
.page-hero p { font-size: 17.5px; color: #9fb0cd; max-width: 660px; }
.breadcrumb { display: flex; gap: 8px; align-items: center; font-size: 13.5px; color: #7e8dad; margin-bottom: 22px; }
.breadcrumb a { transition: color .18s; }
.breadcrumb a:hover { color: #fff; }

/* ============ 关于我们 ============ */
.about-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 76px; align-items: center; }
.about-intro .lead { font-size: 16.5px; color: var(--muted); margin-top: 18px; }
.about-intro .lead + .lead { margin-top: 14px; }

.about-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  background: var(--dark);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--r-lg);
  padding: 40px 32px;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}
.about-stats::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(80% 60% at 30% 0%, rgba(37, 99, 235, 0.26), transparent 60%);
}
.about-stats .stat-box { border: none; background: none; padding: 10px 4px; position: relative; }
.about-stats .stat-box .num { font-size: 40px; }

.values-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.value-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  padding: 34px 30px;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
  overflow: hidden;
}
.value-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(340px circle at var(--mx, 50%) var(--my, 0%), rgba(37, 99, 235, 0.07), transparent 42%);
  opacity: 0;
  transition: opacity .3s;
  pointer-events: none;
}
.value-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.value-card:hover::before { opacity: 1; }
.value-card .value-icon {
  width: 48px; height: 48px; border-radius: 12px;
  display: grid; place-items: center;
  background: var(--brand-soft); color: var(--brand);
  margin-bottom: 22px;
}
.value-card h3 { font-size: 18px; margin-bottom: 10px; }
.value-card p { font-size: 14.5px; color: var(--muted); }

.timeline { display: flex; flex-direction: column; }
.tl-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 36px;
  padding: 28px 0;
  border-top: 1px solid var(--line);
}
.tl-item .year { font-family: var(--font-display); font-size: 22px; font-weight: 700; color: var(--brand); letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.tl-item h4 { font-size: 17px; margin-bottom: 6px; }
.tl-item p { font-size: 14.5px; color: var(--muted); }

/* ============ 产品服务页 ============ */
.product-detail-list { display: flex; flex-direction: column; gap: 20px; }
.pd-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  padding: 36px 32px;
  display: grid;
  grid-template-columns: 56px 1fr auto;
  gap: 28px;
  align-items: start;
  overflow: hidden;
  transition: box-shadow .3s var(--ease), border-color .3s, transform .3s var(--ease);
}
.pd-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(480px circle at var(--mx, 50%) var(--my, 0%), rgba(37, 99, 235, 0.05), transparent 45%);
  opacity: 0;
  transition: opacity .3s;
  pointer-events: none;
}
.pd-card:hover { box-shadow: var(--shadow-lg); border-color: var(--line-strong); transform: translateY(-3px); }
.pd-card:hover::before { opacity: 1; }
.pd-card .product-icon { margin-bottom: 0; }
.pd-card h3 { font-size: 21px; margin-bottom: 10px; }
.pd-card p { font-size: 15px; color: var(--muted); max-width: 660px; margin-bottom: 16px; }
.pd-card .features { display: flex; flex-wrap: wrap; gap: 8px; }
.pd-card .features span {
  font-size: 12.5px;
  color: var(--text);
  background: var(--surface-2);
  padding: 4px 12px;
  border-radius: var(--r-pill);
}
.pd-card .badge {
  align-self: center;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--brand);
  background: var(--brand-soft);
  padding: 6px 14px;
  border-radius: var(--r-pill);
  white-space: nowrap;
}

/* ============ 联系我们页 ============ */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 48px; align-items: start; }
.contact-info { display: flex; flex-direction: column; gap: 18px; }
.contact-card {
  display: flex;
  gap: 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  padding: 26px 24px;
  transition: box-shadow .3s var(--ease), transform .3s var(--ease), border-color .3s;
}
.contact-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); border-color: var(--line-strong); }
.contact-card .ci-icon {
  flex: none;
  width: 46px; height: 46px;
  border-radius: 12px;
  display: grid; place-items: center;
  background: var(--brand-soft); color: var(--brand);
}
.contact-card h4 { font-size: 15.5px; margin-bottom: 5px; }
.contact-card p { font-size: 14px; color: var(--muted); }
.contact-card p b { color: var(--text); font-weight: 600; }

.form-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 38px 36px;
  box-shadow: var(--shadow-lg);
}
.form-card h3 { font-size: 21px; margin-bottom: 6px; }
.form-card .form-sub { font-size: 14px; color: var(--muted); margin-bottom: 28px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { margin-bottom: 18px; display: flex; flex-direction: column; gap: 8px; }
.field label { font-size: 14px; font-weight: 600; color: var(--ink); }
.field label .req { color: var(--danger); }
.field input, .field textarea, .field select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-input);
  background: var(--bg);
  color: var(--ink);
  transition: border-color .18s, box-shadow .18s, background .18s;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: var(--ring);
  background: #fff;
}
.field textarea { min-height: 120px; resize: vertical; }
.field .hint { font-size: 12.5px; color: var(--muted); }
.field .error-text { font-size: 12.5px; color: var(--danger); display: none; }
.field.invalid input, .field.invalid textarea { border-color: var(--danger); }
.field.invalid .error-text { display: block; }
.form-success {
  display: none;
  align-items: center;
  gap: 10px;
  margin-top: 16px;
  font-size: 14px;
  color: var(--ok);
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  border-radius: var(--r-input);
  padding: 12px 16px;
}

/* ============ 页脚 ============ */
.footer { background: var(--dark); color: #94a3b8; padding: 80px 0 36px; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.7fr 1fr 1fr 1fr;
  gap: 44px;
  margin-bottom: 60px;
}
.footer .brand { color: #fff; }
.footer .brand .brand-mark { box-shadow: none; }
.footer-desc { font-size: 14px; color: #64748b; margin-top: 18px; max-width: 320px; }
.footer h5 { font-family: var(--font-display); color: #e2e8f0; font-size: 14px; font-weight: 700; margin-bottom: 18px; letter-spacing: 0.01em; }
.footer ul { display: flex; flex-direction: column; gap: 11px; }
.footer ul a { font-size: 14px; color: #94a3b8; transition: color .18s; }
.footer ul a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(148, 163, 184, 0.16);
  padding-top: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: #64748b;
}

/* ============ 滚动显现 ============ */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s; }
.reveal.d2 { transition-delay: .16s; }
.reveal.d3 { transition-delay: .24s; }

/* ============ 微信咨询浮动框 ============ */
.wechat-fab {
  position: fixed;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 90;
  display: flex;
  align-items: center;
}
.wechat-fab-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 7px;
  width: 58px;
  padding: 14px 0;
  background: var(--brand);
  color: #fff;
  border-radius: 12px;
  box-shadow: var(--shadow-brand);
  transition: background .18s, transform .16s, box-shadow .18s;
}
.wechat-fab-btn:hover { background: var(--brand-deep); transform: translateX(-2px); }
.wechat-fab-btn svg { width: 26px; height: 26px; flex: none; }
.wechat-fab-btn span {
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  writing-mode: vertical-rl;
}

.wechat-pop {
  position: absolute;
  right: 70px;
  top: 50%;
  transform: translateY(-50%) translateX(10px);
  width: 192px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  box-shadow: var(--shadow-lg);
  padding: 14px;
  text-align: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity .2s ease, transform .2s ease, visibility .2s;
}
.wechat-pop::after {
  content: "";
  position: absolute;
  right: -6px;
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
  width: 12px;
  height: 12px;
  background: var(--surface);
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
}
.wechat-pop .qr {
  width: 100%;
  aspect-ratio: 1;
  border: 1px solid var(--surface-2);
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 12px;
}
.wechat-pop .qr img { width: 100%; height: 100%; display: block; }
.wechat-pop p { font-size: 13px; color: var(--muted); line-height: 1.7; }
.wechat-pop p b { display: block; color: var(--ink); font-weight: 700; font-size: 14px; }

.wechat-fab:hover .wechat-pop,
.wechat-fab:focus-within .wechat-pop {
  opacity: 1;
  visibility: visible;
  transform: translateY(-50%) translateX(0);
}

/* ============ 下拉导航 ============ */
.nav-links li.has-menu { position: relative; }
.nav-links .menu-toggle {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 8px 14px;
  font-size: 14.5px;
  color: var(--text);
  border-radius: var(--r-btn);
  transition: color .18s, background .18s;
}
.nav-links .menu-toggle:hover { color: var(--ink); background: var(--surface-2); }
.nav-links .menu-toggle.active { color: var(--brand); font-weight: 600; }
.menu a.active { color: var(--brand); background: var(--brand-soft); }
.nav-links .menu-toggle .caret {
  width: 14px; height: 14px;
  transition: transform .22s var(--ease);
  color: var(--muted);
}
.nav-links li.has-menu:hover .menu-toggle .caret,
.nav-links li.has-menu.open .menu-toggle .caret { transform: rotate(180deg); }

.menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 224px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow-lg);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transition: opacity .2s var(--ease), transform .2s var(--ease), visibility .2s;
  z-index: 60;
}
.nav-links li.has-menu:hover .menu { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.menu a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 13px;
  border-radius: 9px;
  font-size: 14px;
  color: var(--text);
  transition: background .15s, color .15s;
}
.menu a small { font-size: 12px; color: var(--muted); }
.menu a:hover { background: var(--brand-soft); color: var(--brand); }
.menu .menu-head {
  padding: 8px 13px 6px;
  font-family: var(--font-display);
  font-size: 11.5px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 700;
}

/* ============ 产品落地页通用 ============ */
.page-hero .hero-cta { margin-top: 30px; }
.page-hero .hero-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.page-hero .hero-tags span {
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--r-pill);
  color: #cfe0ff;
  background: rgba(37, 99, 235, 0.14);
  border: 1px solid rgba(37, 99, 235, 0.26);
}

/* 能力卡片 */
.cap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.cap-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  padding: 32px 28px;
  overflow: hidden;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s;
}
.cap-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(340px circle at var(--mx, 50%) var(--my, 0%), rgba(37, 99, 235, 0.07), transparent 42%);
  opacity: 0;
  transition: opacity .3s;
  pointer-events: none;
}
.cap-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: var(--line-strong); }
.cap-card:hover::before { opacity: 1; }
.cap-card .product-icon { margin-bottom: 18px; }
.cap-card h3 { font-size: 17.5px; margin-bottom: 10px; }
.cap-card p { font-size: 14.5px; color: var(--muted); }

/* 痛点 → 方案 */
.pain-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.pain-card {
  display: flex;
  gap: 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  padding: 28px 26px;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.pain-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.pain-card .p-icon {
  flex: none;
  width: 46px; height: 46px;
  border-radius: 12px;
  display: grid; place-items: center;
  background: var(--surface-2); color: var(--text);
}
.pain-card .p-icon.solved { background: var(--brand-soft); color: var(--brand); }
.pain-card h4 { font-size: 16.5px; margin-bottom: 7px; }
.pain-card p { font-size: 14px; color: var(--muted); }
.pain-card .pain-tag {
  display: inline-block;
  font-size: 11.5px; font-weight: 700;
  color: var(--muted);
  letter-spacing: .04em;
  margin-bottom: 8px;
}
.pain-card.solved .pain-tag { color: var(--brand); }

/* 特性两列清单 */
.spec-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 40px; }
.spec-cols li {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  color: var(--text);
}
.spec-cols li svg { width: 19px; height: 19px; color: var(--brand); flex: none; margin-top: 2px; }
.spec-cols li b { color: var(--ink); font-weight: 600; display: block; }
.spec-cols li span { color: var(--muted); font-size: 13.5px; }

/* 产品页跳转导航 */
.product-switch {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: 56px;
}
.product-switch a {
  font-size: 14px;
  font-weight: 600;
  padding: 9px 18px;
  border-radius: var(--r-pill);
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--line);
  transition: all .18s;
}
.product-switch a:hover, .product-switch a.active { color: #fff; background: var(--grad); border-color: transparent; }

/* ============ 解决方案页 ============ */
.sol-tabs { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 48px; }
.sol-tabs button {
  font-size: 14.5px;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: var(--r-pill);
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--line);
  transition: all .18s;
}
.sol-tabs button:hover { border-color: var(--brand); color: var(--brand); }
.sol-tabs button.active { color: #fff; background: var(--grad); border-color: transparent; }
.sol-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.sol-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  padding: 32px 28px;
  overflow: hidden;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.sol-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(340px circle at var(--mx, 50%) var(--my, 0%), rgba(37, 99, 235, 0.07), transparent 42%);
  opacity: 0;
  transition: opacity .3s;
  pointer-events: none;
}
.sol-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.sol-card:hover::before { opacity: 1; }
.sol-card .sol-tag {
  display: inline-block;
  font-size: 12px; font-weight: 700;
  color: var(--brand); background: var(--brand-soft);
  padding: 4px 12px; border-radius: var(--r-pill);
  margin-bottom: 16px;
}
.sol-card h3 { font-size: 18px; margin-bottom: 10px; }
.sol-card p { font-size: 14.5px; color: var(--muted); margin-bottom: 16px; }
.sol-card ul { display: flex; flex-direction: column; gap: 8px; }
.sol-card li { display: flex; gap: 8px; font-size: 14px; align-items: center; }
.sol-card li svg { width: 16px; height: 16px; color: var(--brand); flex: none; }

/* ============ 客户案例 ============ */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  overflow: hidden;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s;
}
.case-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: var(--line-strong); }
.case-card .case-top {
  padding: 24px 24px 20px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: 14px;
}
.case-card .case-logo {
  width: 46px; height: 46px; flex: none;
  border-radius: 12px;
  display: grid; place-items: center;
  background: var(--grad); color: #fff;
  font-weight: 700; font-size: 16px;
}
.case-card .case-top h3 { font-size: 16.5px; }
.case-card .case-top .ind { font-size: 12.5px; color: var(--muted); }
.case-card .case-body { padding: 20px 24px 24px; }
.case-card .case-metric {
  display: flex; align-items: baseline; gap: 8px;
  margin-bottom: 14px;
}
.case-card .case-metric b {
  font-family: var(--font-display);
  font-size: 34px; font-weight: 700; color: var(--brand);
  font-variant-numeric: tabular-nums; letter-spacing: -0.02em;
}
.case-card .case-metric span { font-size: 13.5px; color: var(--muted); }
.case-card p { font-size: 14px; color: var(--text); line-height: 1.7; }
.case-card .link { margin-top: 18px; font-size: 14px; font-weight: 600; color: var(--brand); display: inline-flex; align-items: center; gap: 6px; }
.case-card:hover .link { gap: 10px; }

/* 案例详情 */
.case-hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 40px; }
.case-hero-stats .stat-box { border: 1px solid rgba(255, 255, 255, 0.09); background: rgba(255, 255, 255, 0.03); border-radius: var(--r-card); padding: 24px 22px; }
.case-hero-stats .stat-box .num { font-size: 32px; }
.case-hero-stats .stat-box .num em { font-size: 17px; }
.case-hero-stats .stat-box .cap { font-size: 13px; }

/* ============ 开发者中心 ============ */
.dev-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.dev-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s;
}
.dev-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(340px circle at var(--mx, 50%) var(--my, 0%), rgba(37, 99, 235, 0.07), transparent 42%);
  opacity: 0;
  transition: opacity .3s;
  pointer-events: none;
}
.dev-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: var(--line-strong); }
.dev-card:hover::before { opacity: 1; }
.dev-card h3 { font-size: 18px; margin-bottom: 12px; }
.dev-card p { font-size: 14.5px; color: var(--muted); margin-bottom: 18px; }
.dev-card .link { margin-top: auto; font-size: 14px; font-weight: 600; color: var(--brand); display: inline-flex; align-items: center; gap: 6px; }
.dev-card:hover .link { gap: 10px; }

.code-block {
  background: var(--dark-2);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  overflow: hidden;
  font-family: var(--font-mono);
}
.code-block .code-head {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}
.code-block .code-head span { font-size: 12px; color: #7e8dad; }
.code-block pre {
  padding: 20px 22px;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.8;
  color: #c3d0ea;
}
.code-block code { font-family: var(--font-mono); }
.code-block .tk { color: #8fb4ff; }
.code-block .str { color: #6ee7a0; }
.code-block .cm { color: #5b6b88; }

/* 状态页 */
.status-row {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.status-row:last-child { border-bottom: none; }
.status-row .svc { display: flex; align-items: center; gap: 12px; font-size: 15px; color: var(--ink); font-weight: 600; }
.status-dot { width: 10px; height: 10px; border-radius: 50%; flex: none; }
.status-dot.ok { background: var(--ok); box-shadow: 0 0 0 4px rgba(22, 163, 74, 0.14); }
.status-row .uptime { font-size: 13px; color: var(--muted); font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

/* ============ 资源中心 ============ */
.res-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.res-card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  padding: 28px 26px;
  overflow: hidden;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s;
}
.res-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(340px circle at var(--mx, 50%) var(--my, 0%), rgba(37, 99, 235, 0.07), transparent 42%);
  opacity: 0;
  transition: opacity .3s;
  pointer-events: none;
}
.res-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: var(--line-strong); }
.res-card:hover::before { opacity: 1; }
.res-card .res-meta { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.res-card .res-meta .cat { font-size: 12px; font-weight: 700; color: var(--brand); background: var(--brand-soft); padding: 4px 11px; border-radius: var(--r-pill); }
.res-card .res-meta time { font-size: 12.5px; color: var(--muted); font-variant-numeric: tabular-nums; }
.res-card h3 { font-size: 17px; margin-bottom: 10px; line-height: 1.4; }
.res-card p { font-size: 14px; color: var(--muted); margin-bottom: 18px; }
.res-card .link { margin-top: auto; font-size: 14px; font-weight: 600; color: var(--brand); display: inline-flex; align-items: center; gap: 6px; }

/* ============ 关于我们扩展 ============ */
.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.team-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  padding: 28px 22px;
  text-align: center;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.team-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.team-card .av {
  width: 72px; height: 72px; margin: 0 auto 16px;
  border-radius: 22px;
  background: var(--grad); color: #fff;
  display: grid; place-items: center;
  font-size: 26px; font-weight: 700;
}
.team-card h4 { font-size: 16.5px; margin-bottom: 4px; }
.team-card .role { font-size: 13px; color: var(--brand); font-weight: 600; margin-bottom: 10px; }
.team-card p { font-size: 13px; color: var(--muted); }

.honor-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.honor-card {
  display: flex; align-items: center; gap: 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  padding: 24px 26px;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.honor-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.honor-card .h-icon {
  flex: none;
  width: 52px; height: 52px;
  border-radius: 14px;
  display: grid; place-items: center;
  background: var(--brand-soft); color: var(--brand);
}
.honor-card h4 { font-size: 16px; margin-bottom: 4px; }
.honor-card p { font-size: 13.5px; color: var(--muted); }

.news-list { display: flex; flex-direction: column; }
.news-item {
  display: grid;
  grid-template-columns: 110px 1fr auto;
  gap: 28px;
  align-items: center;
  padding: 24px 4px;
  border-top: 1px solid var(--line);
  transition: background .18s, padding .2s;
  border-radius: 10px;
}
.news-item:hover { background: var(--bg-soft); padding-left: 16px; }
.news-item .date { font-family: var(--font-display); font-size: 14px; color: var(--muted); font-variant-numeric: tabular-nums; }
.news-item h4 { font-size: 16.5px; }
.news-item p { font-size: 14px; color: var(--muted); margin-top: 4px; }
.news-item .link { font-size: 14px; font-weight: 600; color: var(--brand); }

.jobs-list { display: flex; flex-direction: column; gap: 16px; }
.job-item {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  padding: 26px 28px;
  transition: box-shadow .3s var(--ease), transform .3s var(--ease);
}
.job-item:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.job-item h4 { font-size: 17px; margin-bottom: 6px; }
.job-item .job-meta { display: flex; flex-wrap: wrap; gap: 8px; }
.job-item .job-meta span { font-size: 12.5px; color: var(--text); background: var(--surface-2); padding: 3px 11px; border-radius: var(--r-pill); }
.job-item .btn { flex: none; }

/* ============ 首页 · 黄金增长漏斗 ============ */
.funnel-band {
  position: relative;
  padding: 120px 0;
  background: linear-gradient(180deg, #050b18 0%, #0a1428 100%);
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  overflow: hidden;
}
.funnel-band::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(760px 440px at 50% -6%, rgba(37, 99, 235, 0.22), transparent 62%),
    radial-gradient(640px 420px at 88% 30%, rgba(14, 165, 233, 0.12), transparent 58%);
  pointer-events: none;
}
.funnel-band .container { position: relative; }
.funnel-band .section-head h2 { color: #fff; }
.funnel-band .section-head p { color: #a9b6d2; }
.funnel-band .eyebrow { color: #8fb4ff; }

.funnel {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  max-width: 780px;
  margin: 0 auto;
}
.funnel-stage {
  width: var(--w, 100%);
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 18px 26px;
  border-radius: 14px;
  background: linear-gradient(90deg, #1d4ed8 0%, #2563eb 60%, #3b82f6 100%);
  color: #fff;
  box-shadow: 0 24px 52px -26px rgba(37, 99, 235, 0.55);
  transition: transform .28s var(--ease), box-shadow .28s var(--ease);
}
.funnel-stage:hover { transform: translateY(-3px); box-shadow: 0 32px 64px -28px rgba(37, 99, 235, 0.72); }
.funnel-stage .f-num {
  flex: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  color: rgba(255, 255, 255, 0.62);
  letter-spacing: -0.02em;
}
.funnel-stage h3 { color: #fff; font-size: 17px; white-space: nowrap; margin: 0; }
.funnel-stage p {
  color: rgba(255, 255, 255, 0.94);
  font-size: 13.5px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.funnel-stage .f-tag {
  margin-left: auto;
  flex: none;
  font-size: 12px;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.2);
  padding: 4px 12px;
  border-radius: 999px;
  white-space: nowrap;
}

.funnel-legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 10px;
  margin-top: 44px;
}
.funnel-legend .legend-label {
  font-size: 13.5px;
  color: #93a3c0;
  margin-right: 4px;
}
.funnel-legend a {
  font-size: 13px;
  font-weight: 600;
  color: #cfe0ff;
  background: rgba(37, 99, 235, 0.14);
  border: 1px solid rgba(37, 99, 235, 0.26);
  padding: 6px 15px;
  border-radius: 999px;
  transition: background .18s, color .18s, border-color .18s;
}
.funnel-legend a:hover { background: rgba(37, 99, 235, 0.26); color: #fff; }
.funnel-legend .legend-more {
  font-size: 13.5px;
  font-weight: 600;
  color: #8fb4ff;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.funnel-legend .legend-more:hover { color: #b7cdff; }

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .feature-split, .about-intro { grid-template-columns: 1fr; gap: 48px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .shot-body { grid-template-columns: 150px 1fr; }
}

@media (max-width: 860px) {
  .nav-links {
    position: fixed;
    top: 68px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    padding: 14px 20px 20px;
    gap: 4px;
    display: none;
    box-shadow: 0 30px 40px -30px rgba(16, 24, 40, 0.4);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 13px 14px; font-size: 16px; }
  .nav-toggle { display: grid; }
  .product-grid, .deploy-grid, .values-grid, .stat-grid, .testimonial-grid { grid-template-columns: 1fr 1fr; }
  .pd-card { grid-template-columns: 1fr; gap: 18px; }
  .pd-card .badge { align-self: flex-start; }
  .cta-band { padding: 56px 36px; }
  .shot-body { grid-template-columns: 1fr; }
  .shot-side { display: none; }
}

@media (max-width: 560px) {
  .section { padding: 76px 0 84px; }
  .hero { padding: 136px 0 84px; }
  .page-hero { padding: 132px 0 64px; }
  .product-grid, .deploy-grid, .values-grid, .stat-grid, .testimonial-grid, .form-row { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .shot-metrics { grid-template-columns: 1fr 1fr 1fr; }
  .shot-metric .v { font-size: 16px; }
  .tl-item { grid-template-columns: 1fr; gap: 8px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .form-card { padding: 26px 20px; }
  .container { padding: 0 20px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  * { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}

@media (max-width: 560px) {
  .wechat-fab { right: 14px; }
  .wechat-fab-btn { width: 52px; padding: 12px 0; }
  .wechat-fab-btn svg { width: 22px; height: 22px; }
  .wechat-pop { width: 170px; right: 62px; }
}

@media (max-width: 860px) {
  .nav-links li.has-menu { position: static; }
  .menu {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    min-width: 0;
    box-shadow: none;
    border: none;
    border-radius: 0;
    padding: 0 0 4px 14px;
    display: none;
  }
  .nav-links li.has-menu.open .menu { display: block; }
  .menu a { padding: 11px 13px; }
  .menu .menu-head { display: none; }
  .nav-links .menu-toggle { width: 100%; justify-content: space-between; }
  .cap-grid, .pain-grid, .spec-cols, .sol-grid, .case-grid, .dev-grid, .res-grid, .honor-grid, .team-grid { grid-template-columns: 1fr 1fr; }
  .case-hero-stats { grid-template-columns: 1fr 1fr; }
  .news-item { grid-template-columns: 1fr; gap: 8px; }
  .job-item { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 560px) {
  .cap-grid, .pain-grid, .spec-cols, .sol-grid, .case-grid, .dev-grid, .res-grid, .honor-grid, .team-grid { grid-template-columns: 1fr; }
  .case-hero-stats { grid-template-columns: 1fr 1fr; }
  .case-hero-stats .stat-box .num { font-size: 26px; }
}

@media (max-width: 560px) {
  .funnel-band { padding: 76px 0; }
  .funnel-stage { padding: 15px 18px; gap: 12px; }
  .funnel-stage p { white-space: normal; }
  .funnel-stage .f-tag { display: none; }
}

/* ============================================================
   设计系统 v4.1 · 交互与动效增强
   滚动进度条 / 返回顶部 / 导航收缩与下划线 / 首屏入场 / 按钮流光
   ============================================================ */

/* 自定义滚动条（WebKit，克制、贴合浅色底） */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: #cbd3e1;
  border-radius: 999px;
  border: 2px solid var(--bg);
}
::-webkit-scrollbar-thumb:hover { background: #a9b4c9; }

/* 滚动进度条 */
.progress-bar {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 3px;
  z-index: 130;
  pointer-events: none;
}
.progress-bar .bar {
  height: 100%; width: 0;
  background: var(--grad);
  box-shadow: 0 0 14px rgba(37, 99, 235, 0.55);
}

/* 导航：滚动收缩 + 顶层链接下划线动效 */
.nav { transition: border-color .3s, box-shadow .3s, background .3s, height .3s var(--ease); }
.nav.shrunk { height: 58px; }

.nav-links > li > a { position: relative; }
.nav-links > li > a::after {
  content: "";
  position: absolute;
  left: 14px; right: 14px; bottom: 3px;
  height: 2px;
  border-radius: 2px;
  background: var(--brand);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .28s var(--ease);
}
.nav-links > li > a:hover::after,
.nav-links > li > a.active::after { transform: scaleX(1); }

/* 首屏入场：逐级上浮 */
.hero-head > *, .page-hero .container > * {
  animation: heroUp .9s var(--ease) both;
}
.hero-head > *:nth-child(1), .page-hero .container > *:nth-child(1) { animation-delay: .04s; }
.hero-head > *:nth-child(2), .page-hero .container > *:nth-child(2) { animation-delay: .12s; }
.hero-head > *:nth-child(3), .page-hero .container > *:nth-child(3) { animation-delay: .2s; }
.hero-head > *:nth-child(4), .page-hero .container > *:nth-child(4) { animation-delay: .28s; }
.hero-head > *:nth-child(5), .page-hero .container > *:nth-child(5) { animation-delay: .36s; }
.hero-head > *:nth-child(6), .page-hero .container > *:nth-child(6) { animation-delay: .44s; }
@keyframes heroUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: none; }
}

/* 按钮流光（hover 时扫过一层高光） */
.btn-primary, .cta-band .btn, .hero .btn-primary {
  position: relative;
  overflow: hidden;
}
.btn-primary::after {
  content: "";
  position: absolute;
  top: 0; left: -130%;
  width: 55%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transform: skewX(-20deg);
  pointer-events: none;
}
.btn-primary:hover::after { animation: shine .85s var(--ease); }
@keyframes shine { to { left: 160%; } }

/* 返回顶部 */
.back-top {
  position: fixed;
  right: 24px; bottom: 24px;
  z-index: 95;
  width: 46px; height: 46px;
  border-radius: 13px;
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-md);
  display: grid; place-items: center;
  color: var(--ink);
  opacity: 0; visibility: hidden; transform: translateY(12px);
  transition: opacity .3s var(--ease), visibility .3s, transform .3s var(--ease), color .2s, border-color .2s, background .2s;
}
.back-top.show { opacity: 1; visibility: visible; transform: none; }
.back-top:hover { color: var(--brand); border-color: var(--brand); }
.back-top svg { width: 20px; height: 20px; }

@media (max-width: 860px) {
  .nav.shrunk { height: 68px; }
}

@media (max-width: 560px) {
  .back-top { right: 14px; bottom: 14px; width: 42px; height: 42px; }
}

/* 动效降级 */
@media (prefers-reduced-motion: reduce) {
  .hero-head > *, .page-hero .container > * { animation: none; }
  .btn-primary::after { animation: none !important; }
  .nav-links > li > a::after { transition: none; }
}