/* ==========================================================================
   普元南辰（上海）科技有限公司 · 企业官网
   全站唯一样式入口 assets/css/style.css
   深空科技风 · 深色为主基调；族谱页含宣纸浅底两段式
   ========================================================================== */

/* ---------- 设计变量 ---------- */
/* ★品牌色：「浅底 + 深灰带 + 科技蓝」。
   页面主体是浅灰/白底（不再压黑，读起来不闷），首屏、CTA、页脚保留深灰带做重量感；
   强调色统一走蓝色主调：主蓝 #0F62FE（按钮/链接）、深蓝 #0043CE（hover/次强调），
   深灰带上的蓝要提亮到 #78A9FF 才够对比（见下方深灰带作用域）。 */
:root {
  --bg-0: #F4F4F4;                 /* 页面底：浅灰 */
  --bg-1: #FFFFFF;                 /* 交替区：白 */
  --bg-2: #FFFFFF;                 /* 数字条 */
  --dark: #161616;                 /* 深灰带 */
  --line: rgba(22, 22, 22, .12);   /* 细描边 */
  --grid: rgba(22, 22, 22, .05);   /* HUD 网格 */
  --txt-0: #161616;                /* 主文字 */
  --txt-1: #525252;                /* 次要文字 */
  --aqua: #0F62FE;                 /* 品牌主蓝 */
  --steel: #0043CE;                /* 深调蓝：hover / 次强调 */
  --paper: #EDF4FF;                /* 族谱板块浅蓝底 */
  --sans: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --mono: ui-monospace, "SF Mono", Consolas, monospace;
  --grad: linear-gradient(135deg, #0F62FE, #4589FF);
  --card-bg: #FFFFFF;
  --radius: 18px;
  --container: 1200px;
  --gutter: clamp(16px, 4vw, 32px);
}

/* ★深灰带作用域：首屏 / CTA / 页脚。把这些容器内的 token 切成浅色系，
   里面的排版、卡片、按钮样式不用重写一遍。 */
.hero, .page-hero, .cta-strip, .site-footer {
  --txt-0: #F4F4F4;
  --txt-1: #A8A8A8;
  --line: rgba(255, 255, 255, .14);
  --grid: rgba(255, 255, 255, .05);
  --aqua: #78A9FF;                 /* 深灰上提亮的蓝，7.7:1 */
  --steel: #4589FF;
  --card-bg: rgba(255, 255, 255, .06);
  color: var(--txt-0);
}

/* ---------- 重置 ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
/* ★移动端离屏抽屉（.site-nav translateX(100%)）会撑大 scrollWidth → 页面可横向拖动出空白。
   用 overflow-x: clip 兜底（不影响 sticky/fixed），旧浏览器回退 hidden。 */
html, body { overflow-x: hidden; overflow-x: clip; }
body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--txt-0);
  background: var(--bg-0);
  overflow-wrap: break-word;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  -webkit-text-size-adjust: 100%;   /* ★iOS 横屏/大字号不自动放大正文 */
  text-size-adjust: 100%;
}
body.nav-open { overflow: hidden; }
img, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; color: inherit; background: none; border: none; }
:focus-visible { outline: 2px solid var(--aqua); outline-offset: 2px; }
/* ★手机点按：去掉 300ms 点按延迟与误双击缩放 */
a, button, [role="button"], input, select, textarea, label, summary { touch-action: manipulation; }

/* ---------- 布局 ---------- */
.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.section { background: var(--bg-0); padding-block: 96px; }
.section::before {
  content: "";
  display: block;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(15, 98, 254, .30), rgba(69, 137, 255, .30), transparent);
}
.section--alt { background: var(--bg-1); }
.section-head { max-width: 760px; margin-bottom: 40px; }
.section-head .eyebrow { margin-bottom: 12px; }

/* ---------- 排版 ---------- */
h1, h2, h3, h4 {
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--txt-0);
}
h1 { font-size: clamp(34px, 6vw, 72px); }
h2 { font-size: clamp(26px, 3.4vw, 44px); line-height: 1.2; margin-bottom: 20px; }
h3 { font-size: clamp(17px, 1.6vw, 20px); letter-spacing: 0; line-height: 1.4; }
p { color: var(--txt-1); }
.lead {
  font-size: 17px;
  line-height: 1.85;
  color: var(--txt-0);
  max-width: 800px;
}
.prose { max-width: 800px; }
.prose p { font-size: 17px; line-height: 1.9; color: var(--txt-0); margin-bottom: 24px; }
.prose p:last-child { margin-bottom: 0; }
.note { font-size: 14px; color: var(--txt-1); margin-top: 16px; }

/* 小节眉标：mono 大写 + 前置短横线 */
.eyebrow {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--aqua);
}

/* ---------- 顶部滚动进度线 ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--grad);
  transform: scaleX(0);
  transform-origin: left center;
  z-index: 1000;
}

/* ---------- 页头 / 导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 900;
  background: rgba(255, 255, 255, .96);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 1px 2px rgba(22, 22, 22, .04);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
}
.logo { display: flex; flex-direction: column; line-height: 1.1; }
.logo-cn { font-size: 25px; font-weight: 700; letter-spacing: .05em; color: var(--txt-0); line-height: 1.16; }
.logo-en {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .13em;
  color: var(--txt-1);
  margin-top: 3px;
}
.site-nav { display: flex; align-items: center; gap: 24px; }
.site-nav-list { display: flex; align-items: center; gap: 4px; }
.site-nav-list a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 14px;
  border-radius: 8px;
  font-size: 15px;
  color: var(--txt-1);
  transition: color .25s ease, background-color .25s ease;
}
.site-nav-list a:hover { color: var(--txt-0); }
.site-nav-list a[aria-current="page"] {
  color: var(--aqua);
  background: rgba(15, 98, 254, .08);
}

/* 汉堡按钮（手机端） */
.nav-toggle {
  width: 44px;
  height: 44px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #FFFFFF;
  cursor: pointer;
}
.nav-toggle span {
  width: 18px;
  height: 2px;
  background: var(--txt-0);
  border-radius: 2px;
  transition: transform .25s ease, opacity .25s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 移动端专属元素：桌面隐藏 */
.mobile { display: none; }

/* ---------- 按钮 ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 28px;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 500;
  line-height: 1;
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: transform .25s ease, border-color .25s ease, background-color .25s ease, color .25s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  color: #FFFFFF;
  background: #0F62FE;            /* ★固定主蓝：深灰带里 --aqua 会被提亮成 #78A9FF，白字就不够对比了 */
  box-shadow: 0 4px 14px rgba(15, 98, 254, .22);
  border-color: transparent;
}
.btn-secondary { color: var(--txt-0); background: transparent; border-color: var(--line); }
.btn-primary:hover { background: var(--steel); }
.btn-secondary:hover { border-color: currentColor; }

/* ---------- 渐变描边（hover 渐显） ---------- */
.grad-border { position: relative; }
.grad-border::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: var(--grad);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity .3s ease;
  pointer-events: none;
}
.grad-border:hover::after,
.grad-border.is-active::after { opacity: 1; }

/* ---------- 玻璃卡 ---------- */
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: 0 1px 2px rgba(22, 22, 22, .04);
  min-width: 0;
  word-break: break-word;
  transition: transform .3s ease;
}
.card:hover { transform: translateY(-3px); }
.card h3 { font-size: 20px; font-weight: 600; margin-bottom: 12px; }
.card p { font-size: 16px; color: var(--txt-1); word-break: break-word; min-width: 0; }
.card ul { margin-bottom: 24px; }
.card ul li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 8px;
  color: var(--txt-1);
  word-break: break-word;
}
.card ul li:last-child { margin-bottom: 0; }
.card ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--aqua);
}
.card .btn { align-self: flex-start; margin-top: auto; }
.card-sub {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--aqua);
  margin-bottom: 16px;
}
.card-value { font-size: 16px; font-weight: 500; color: var(--aqua); margin-bottom: 16px; }
.card-index {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--aqua);
  margin-bottom: 8px;
}
/* ★.card p 的权重比 .card-index 高，会把编号染成次要灰；这里补一条把它拉回主蓝 */
.card p.card-index { color: var(--aqua); }
.card-tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--aqua);
  margin-bottom: 12px;
}

/* ---------- 栅格（带回退） ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  align-items: stretch;
}
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid > *,
.stats > *,
.steps > *,
.steps-eight > *,
.footer-grid > *,
.price-cards > *,
.hero-inner > *,
.layers-grid > *,
.contact-grid > * { min-width: 0; }

/* ---------- Hero / 页头（HUD 网格 + 光晕） ---------- */
.hero {
  position: relative;
  overflow: hidden;
  min-height: clamp(560px, 74vh, 760px);
  display: flex;
  align-items: center;
  padding-block: 96px 64px;
  background:
    radial-gradient(900px 500px at 82% 12%, rgba(69, 137, 255, .28), transparent 62%),
    radial-gradient(700px 420px at 12% 78%, rgba(15, 98, 254, .22), transparent 60%),
    var(--dark);
}
.page-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 18% 12%, rgba(69, 137, 255, .24), transparent 60%),
    radial-gradient(circle at 86% 24%, rgba(15, 98, 254, .20), transparent 62%),
    var(--dark);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg, var(--grid) 0 1px, transparent 1px 56px),
    repeating-linear-gradient(90deg, var(--grid) 0 1px, transparent 1px 56px);
  -webkit-mask-image: radial-gradient(circle at 50% 40%, #000 45%, transparent 78%);
  mask-image: radial-gradient(circle at 50% 40%, #000 45%, transparent 78%);
  pointer-events: none;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg, var(--grid) 0 1px, transparent 1px 56px),
    repeating-linear-gradient(90deg, var(--grid) 0 1px, transparent 1px 56px);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 48px;
  align-items: center;
  width: 100%;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  letter-spacing: .08em;
  color: var(--aqua);
}
.hero-eyebrow::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--grad);
}
.hero h1 { margin: 20px 0 16px; max-width: 15.5em; text-wrap: balance; }
/* H1 里再显式断一次：避免「做 / 成可用的系统」这类难看断点 */
.hero h1 br { display: block; }
.hero-sub { max-width: 620px; font-size: 17px; color: var(--txt-1); }
.hero-meta {
  margin: 16px 0 24px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--txt-1);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 32px; }
.hero-visual { position: relative; }
.hero-visual img, .hero-visual svg { width: 100%; height: auto; }
.hero-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 42%, rgba(69, 137, 255, .22), transparent 60%);
  animation: heroBreath 8s ease-in-out infinite;
  pointer-events: none;
}
@keyframes heroBreath {
  0%, 100% { opacity: .45; }
  50% { opacity: 1; }
}

.page-hero { padding-block: 80px 48px; }
.page-hero .container { position: relative; }
.page-hero .eyebrow { margin-bottom: 16px; }
.page-hero h1 { margin-bottom: 20px; }

/* ---------- 数字条 ---------- */
.stats-band { background: var(--bg-2); border-block: 1px solid var(--line); padding-block: 56px; }
@media (max-width: 720px) { .stats-band { padding-block: 40px; } }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { border-left: 1px solid var(--line); padding-left: 28px; }
.stat:first-child { border-left: 0; padding-left: 0; }
.stat-value { display: flex; align-items: baseline; }
.stat-num {
  font-family: var(--mono);
  font-size: clamp(38px, 4.4vw, 52px);
  font-weight: 700;
  line-height: 1;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat-unit { font-family: var(--mono); font-size: clamp(15px, 1.4vw, 18px); opacity: .78; margin-left: 6px; color: var(--txt-1); white-space: nowrap; }
.stat-label { margin-top: 8px; font-size: 15px; color: var(--txt-1); }
@supports not (background-clip: text) {
  .stat-num { color: var(--txt-0); }
}

/* ---------- 流程步骤 ---------- */
.step p { font-size: 16px; word-break: break-word; }

.steps {
  counter-reset: step;
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
}
.steps::before {
  content: "";
  position: absolute;
  top: 26px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(15, 98, 254, .30), rgba(69, 137, 255, .30), transparent);
}
.steps .step {
  position: relative;
  padding: 48px 0 0;
}
.steps .step::before {
  content: counter(step, decimal-leading-zero);
  counter-increment: step;
  position: absolute;
  top: 0;
  left: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--aqua);
}
.steps .step::after {
  content: "";
  position: absolute;
  top: 20px;
  left: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--grad);
  box-shadow: 0 0 0 4px rgba(15, 98, 254, .14);
}
.steps .step h3 { font-size: 17px; font-weight: 600; margin-bottom: 8px; }
.steps .step p { font-size: 15px; color: var(--txt-1); }

.steps-eight {
  counter-reset: step;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  column-gap: 48px;
}
.steps-eight .step {
  position: relative;
  padding: 22px 0 22px 44px;
  border-bottom: 1px solid var(--line);
}
.steps-eight .step::before {
  content: counter(step, decimal-leading-zero);
  counter-increment: step;
  position: absolute;
  left: 0;
  top: 24px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--aqua);
}
.steps-eight .step h3 { font-size: 17px; font-weight: 600; margin-bottom: 6px; }
.steps-eight .step p { font-size: 15px; color: var(--txt-1); }
.steps-eight .step:last-child,
.steps-eight .step:nth-last-child(2) { border-bottom: 0; }

/* ---------- 表格 ---------- */
table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
  font-size: 15px;
}
th, td {
  padding: 14px 12px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
  word-break: break-word;
  min-width: 0;
}
th {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--txt-1);
  font-weight: 600;
}
td { color: var(--txt-0); }
.capability-table th:not(:first-child),
.capability-table td { text-align: center; }

/* ---------- 价格提示 / 锚点 ---------- */
.price-hint { border-top: 1px solid var(--line); max-width: 720px; }
.price-hint-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.price-hint-row span { color: var(--txt-1); }
.price-hint-row strong { font-family: var(--mono); font-size: 18px; font-weight: 700; color: var(--txt-0); white-space: nowrap; }

/* ---------- 折叠面板（FAQ） ---------- */
.faq-item {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--card-bg);
  margin-bottom: 12px;
  overflow: hidden;
}
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  min-height: 44px;
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  color: var(--txt-0);
  user-select: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-icon {
  position: relative;
  flex: none;
  width: 20px;
  height: 20px;
  transition: transform .25s ease;
}
.faq-icon::before, .faq-icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: var(--aqua);
  border-radius: 1px;
}
.faq-icon::before { width: 14px; height: 2px; }
.faq-icon::after { width: 2px; height: 14px; }
.faq-item[open] .faq-icon { transform: rotate(45deg); }
.faq-answer { padding: 0 20px 18px; }
.faq-answer p { color: var(--txt-1); }

/* ---------- 场景 / 标签 / 列表 ---------- */
.pill-list { display: flex; flex-wrap: wrap; gap: 12px; }
.pill {
  padding: 10px 20px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 15px;
  color: var(--txt-0);
  background: var(--card-bg);
}
.deliverable-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.deliverable-list li {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card-bg);
  color: var(--txt-0);
  font-weight: 600;
  word-break: break-word;
}
.commitment-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.commitment-list li {
  position: relative;
  padding: 24px 24px 24px 48px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card-bg);
  color: var(--txt-0);
  word-break: break-word;
}
.commitment-list li::before {
  content: "";
  position: absolute;
  left: 24px;
  top: 32px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--aqua);
}

/* ---------- 成果案例 ---------- */
.case-card { padding: 40px; }
.case-card h3 { font-size: clamp(20px, 2.4vw, 28px); margin-bottom: 24px; }
.metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding-block: 24px;
  border-block: 1px solid var(--line);
  margin-bottom: 24px;
}
.metric-value { display: flex; align-items: baseline; }
.metric-num {
  font-family: var(--mono);
  font-size: clamp(36px, 4vw, 48px);
  font-weight: 700;
  line-height: 1;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.metric-unit { font-family: var(--mono); font-size: 14px; color: var(--txt-1); margin-left: 6px; }
.metric-label { margin-top: 8px; font-size: 15px; color: var(--txt-1); }
.case-card > p { font-size: 16px; max-width: 880px; }

/* ---------- 族谱页：三层成果 ---------- */
.layers-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 32px; align-items: center; }
.tree-lineage { position: relative; min-height: 320px; }
.tree-lineage img { width: 100%; height: auto; min-height: 320px; }
.layers-cards { display: flex; flex-direction: column; gap: 16px; }

.layer-bubble {
  position: absolute;
  padding: 5px 12px;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .06em;
  white-space: nowrap;
  border: 1px solid;
}
.layer-bubble--1 { top: 8%; left: 4%; color: var(--aqua); border-color: rgba(15, 98, 254, .45); background: rgba(15, 98, 254, .08); }
.layer-bubble--2 { top: 38%; right: 6%; color: var(--steel); border-color: rgba(0, 67, 206, .35); background: rgba(0, 67, 206, .07); }
.layer-bubble--3 { bottom: 10%; left: 16%; color: var(--aqua); border-color: rgba(15, 98, 254, .35); background: rgba(15, 98, 254, .07); }

.layers-cards .card { padding-left: 40px; }
.layers-cards .card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 4px;
  border-radius: 2px;
}
.layers-cards .card:nth-child(1)::before { background: linear-gradient(180deg, var(--aqua), rgba(15, 98, 254, .2)); }
.layers-cards .card:nth-child(2)::before { background: linear-gradient(180deg, var(--steel), rgba(0, 67, 206, .2)); }
.layers-cards .card:nth-child(3)::before { background: linear-gradient(180deg, var(--aqua), rgba(0, 67, 206, .2)); }
.layer-badge {
  position: absolute;
  top: 20px;
  right: 20px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--aqua);
  border: 1px solid rgba(0, 67, 206, .5);
  border-radius: 999px;
  padding: 2px 10px;
}

/* 技术特点图标 */
.feature-icon {
  width: 44px;
  height: 44px;
  padding: 11px;
  color: var(--aqua);
  background: rgba(15, 98, 254, .10);
  border-radius: 12px;
  flex: none;
  margin-bottom: 16px;
}
.feature-icon + h3::after {
  content: "";
  display: block;
  width: 28px;
  height: 1px;
  margin-top: 10px;
  background: var(--grad);
}

/* ---------- 套餐价格 ---------- */
.price-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 40px; }
.price-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px;
  min-width: 0;
  word-break: break-word;
}
.price-card.--recommended {
  transform: scale(1.03);
  border: 2px solid transparent;
  background:
    linear-gradient(var(--card-bg), var(--card-bg)) padding-box,
    linear-gradient(135deg, var(--aqua), var(--steel)) border-box;
  box-shadow: 0 10px 28px rgba(15, 98, 254, .14);
}
.price-tag {
  position: absolute;
  top: -12px;
  left: 20px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: #FFFFFF;
  background: var(--steel);
  border-radius: 999px;
  padding: 3px 12px;
  box-shadow: 0 4px 14px rgba(15, 98, 254, .20);
}
.price-name { font-size: 17px; font-weight: 700; color: var(--txt-0); padding-right: 56px; }
.price-amount {
  font-family: var(--mono);
  font-size: clamp(26px, 2.5vw, 34px);
  font-weight: 700;
  color: var(--txt-0);
  margin: 16px 0 4px;
  white-space: nowrap;      /* ★￥12,800 起 不许断成两行 */
  letter-spacing: -.01em;
}
@media (max-width: 720px) { .price-amount { font-size: 30px; } }
.price-applies { font-size: 13px; color: var(--txt-1); margin-bottom: 20px; }
.price-card ul { margin-top: 0; }
.price-card ul li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 8px;
  color: var(--txt-1);
  word-break: break-word;
}
.price-card ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--aqua);
}

.price-table thead th {
  position: sticky;
  top: 72px;
  background: var(--paper);
  z-index: 1;
}
.price-table tbody tr:nth-child(even) { background: rgba(22, 22, 22, .035); }
.price-table th:nth-child(2),
.price-table td:nth-child(2) { font-family: var(--mono); text-align: right; }

/* 族谱页：宣纸浅底两段式 */
.paper-divider {
  height: 96px;
  background: linear-gradient(to bottom, var(--bg-0), var(--paper));
}
.paper-section {
  --aqua: #0F62FE;                 /* 浅蓝底上直接用主蓝，4.5:1 */
  --steel: #0043CE;
  --card-bg: #FFFFFF;
  --txt-0: #161616;
  --txt-1: #525252;
  --line: rgba(22, 22, 22, .12);
  --grid: rgba(22, 22, 22, .05);
  background: var(--paper);
  color: var(--txt-0);
  padding-block: 72px;
}
/* 浅底区连续多段：相邻段落各留一半，避免出现 200px 的空洞 */
.paper-section + .paper-section { padding-top: 8px; }

/* 权属与隐私声明（浅底块） */
.privacy-note {
  background: rgba(15, 98, 254, .06);
  border: 1px solid var(--line);
  border-left: 3px solid var(--aqua);
  border-radius: var(--radius);
  padding: 32px;
}
.privacy-note .card-index { color: var(--aqua); }
.privacy-note h3 { margin-bottom: 12px; }
.privacy-note p { color: var(--txt-1); }

/* ---------- 联系我们 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: 32px; align-items: start; }
.contact-list { border-top: 1px solid var(--line); }
.contact-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  font-size: 16px;
  color: var(--txt-0);
}
.contact-label {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--aqua);
}
/* 电话/邮箱做成可点链接：水蓝提示可点，手机上给足 44px 点按高度 */
.contact-item a { color: var(--aqua); }
.contact-item a:active { opacity: .7; }
.contact-form { gap: 20px; }
.form-field { display: flex; flex-direction: column; gap: 8px; }
.form-field label { font-size: 14px; color: var(--txt-1); }
.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  font: inherit;
  font-size: 16px;
  color: var(--txt-0);
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: 10px;
}
.form-field textarea { min-height: 120px; resize: vertical; }
.form-field input::placeholder,
.form-field textarea::placeholder { color: #6F6F6F; }
.form-note { font-size: 13px; color: var(--txt-1); margin-top: 4px; }
/* 必填星号 / 防机器人蜜罐 / 提交结果提示 */
.form-field .req { color: var(--aqua); }
.hp-field { position: absolute; left: -9999px; top: 0; width: 240px; height: 44px; overflow: hidden; }
.hp-field input { width: 220px; height: 44px; }
.form-msg {
  margin-top: 12px;
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 15px;
  line-height: 1.6;
}
.form-msg.ok { background: rgba(15, 98, 254, .08); border: 1px solid rgba(15, 98, 254, .3); color: var(--txt-0); }
.form-msg.err { background: #FFF1F1; border: 1px solid #FFB3B8; color: #A2191F; }
.form-msg[hidden] { display: none; }
.notice {
  max-width: 720px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card-bg);
}
.notice-title {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--aqua);
  margin-bottom: 8px;
}
.notice p:last-child { color: var(--txt-0); }

/* ---------- CTA 条 ---------- */
.cta-strip {
  position: relative;
  padding-block: 64px;
  text-align: center;
  background:
    radial-gradient(circle at 50% 0%, rgba(69, 137, 255, .22), transparent 60%),
    var(--dark);
  border-block: 1px solid var(--line);
}
.cta-text {
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--txt-0);
  max-width: 720px;
  margin-inline: auto;
}
.cta-strip .btn { margin-top: 24px; }

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--dark);
  border-top: 1px solid var(--line);
  padding-block: 64px 32px;
}
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.6fr; gap: 32px; }
.footer-brand { font-size: 17px; font-weight: 700; color: var(--txt-0); margin-bottom: 8px; }
.footer-tag { font-size: 15px; color: var(--txt-1); }
.footer-title {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--txt-1);
  margin-bottom: 16px;
}
.footer-col ul li { margin-bottom: 10px; font-size: 15px; color: var(--txt-1); }
.footer-col ul li a { color: var(--txt-1); transition: color .25s ease; }
.footer-col ul li a:hover { color: var(--aqua); }
.footer-bottom {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--txt-1);
  text-align: center;
  word-break: break-word;
}
/* 页脚后台入口：不抢眼，但随时能点进去看留言 */
.footer-admin { color: var(--txt-1); text-decoration: underline; text-underline-offset: 3px; }
.footer-admin:hover { color: var(--aqua); }

/* ---------- 滚动显现 ---------- */
/* ★渐进增强：只有 JS 真的跑起来（html.js）才把内容先藏起来；
   没有 JS / JS 报错时内容默认可见，不会整段空白。 */
html.js .reveal {
  opacity: 0;
  transform: translateY(14px);
  will-change: transform, opacity;
  transition: opacity .3s ease, transform .3s ease;
}
html.js .reveal.in { opacity: 1; transform: none; }
html.js .card.reveal.in:hover { transform: translateY(-3px); }
html.js .price-card.--recommended.reveal.in { transform: scale(1.03); }

/* ---------- 响应式：平板 / 小桌面 ---------- */
@media (max-width: 1080px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { max-width: 560px; }
  .price-cards { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 28px; }
  .stat { padding-left: 28px; }
  .stat:nth-child(odd) { border-left: 0; padding-left: 0; }
  .metrics { grid-template-columns: repeat(2, 1fr); }
  .layers-grid { grid-template-columns: 1fr; }
  .layers-visual { max-width: 480px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

/* ---------- 响应式：手机 ---------- */
@media (max-width: 720px) {
  body { font-size: 16px; }
  .section { padding-block: 56px; }
  .container { padding-inline: 16px; }
  h1 { font-size: clamp(34px, 9vw, 44px); }
  h2 { font-size: clamp(26px, 7vw, 34px); }
  .lead { font-size: 16px; }
  .prose p { font-size: 16px; }

  /* 隐藏装饰光斑与 HUD 网格 */
  .hero,
  .page-hero { background: var(--dark); }
  .hero::before,
  .hero::after,
  .hero-glow { display: none; }

  /* 玻璃卡降强度 */
  .card { box-shadow: 0 1px 2px rgba(22, 22, 22, .05); }

  /* 导航折叠为全屏抽屉 */
  .nav-toggle { display: flex; }
  .mobile { display: flex; }
  .site-nav {
    position: fixed;
    inset: 0;
    z-index: 950;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 88px 24px 32px;
    background: #FFFFFF;
    transform: translateX(100%);
    visibility: hidden;
    pointer-events: none;
    transition: transform .3s ease, visibility .3s ease;
    overflow-y: auto;
  }
  .site-nav.open { transform: translateX(0); visibility: visible; pointer-events: auto; }
  .nav-toggle { position: relative; z-index: 960; }
  .site-nav-list { flex-direction: column; align-items: stretch; gap: 0; width: 100%; }
  .site-nav-list a {
    padding: 14px 8px;
    font-size: 18px;
    min-height: 52px;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
  }
  .nav-cta { margin-top: 24px; width: 100%; }

  .steps {
    grid-template-columns: 1fr;
    gap: 0;
    padding-left: 28px;
  }
  .steps::before {
    top: 0;
    bottom: 0;
    left: 6px;
    right: auto;
    width: 1px;
    height: auto;
    background: linear-gradient(180deg, transparent, rgba(15, 98, 254, .35), rgba(0, 67, 206, .35), transparent);
  }
  .steps .step { padding: 0 0 32px; }
  .steps .step::before { position: static; display: block; margin-bottom: 8px; }
  .steps .step::after { top: 4px; left: -28px; }
  .steps .step p { font-size: 16px; }
  .steps-eight { grid-template-columns: 1fr; }
  .steps-eight .step p { font-size: 16px; }
  .steps-eight .step:nth-last-child(2) { border-bottom: 1px solid var(--line); }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .price-cards { grid-template-columns: 1fr; }
  .price-card.--recommended {
    transform: none;
    border: 1px solid var(--line);
    background: var(--card-bg);
    box-shadow: none;
  }
  html.js .price-card.--recommended.reveal.in { transform: none; }
  .price-card.--recommended::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--grad);
    border-radius: var(--radius) var(--radius) 0 0;
  }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .stat { padding-left: 16px; }
  .metrics { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .hero { padding-block: 64px 48px; min-height: auto; }
  .page-hero { min-height: auto; }
  .hero-sub { font-size: 16px; }
  .case-card { padding: 28px 24px; }
  .paper-divider { height: 64px; }

  /* ===== ★手机可读性 / 可点性专项 ===== */
  /* ★backdrop-filter 会让 .site-header 变成 position:fixed 子元素的包含块，
     导航抽屉 .site-nav 被压成顶栏那么高（实测 390×120 而不是 390×844）→ 菜单点不开、点不中。
     手机上关掉模糊，用更实的底色代替。 */
  .site-header {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: #FFFFFF;
  }
  /* 顶部栏压到 64px，给内容多留一行空间 */
  .site-header .header-inner { min-height: 64px; }
  /* logo 可点区 ≥44px（原 38px，指头点不准） */
  .logo { min-height: 44px; justify-content: center; }
  /* 页脚链接原来只有 19px 高，手机几乎点不中 → 每个链接做成 ≥44px 满宽可点区 */
  .footer-col ul li { margin-bottom: 6px; font-size: 16px; }
  .footer-col ul li a { display: flex; align-items: center; min-height: 44px; padding-block: 4px; font-size: 16px; }
  .footer-bottom { font-size: 14px; padding-bottom: calc(8px + env(safe-area-inset-bottom)); }
  /* 小字统一抬到 12–14px（原 11–13px 在手机上偏小） */
  .logo-cn { font-size: 22px; }
  .logo-en { font-size: 11.5px; letter-spacing: .11em; }
  .eyebrow { font-size: 13px; }
  .card-index, .card-tag, .card-sub, .contact-label, .notice-title, .footer-title, .price-tag { font-size: 12px; }
  .layer-bubble { font-size: 13px; }
  .note, .price-applies, .form-note { font-size: 14px; }
  /* 电话/邮箱链接点按高度 ≥44px */
  .contact-item a { display: inline-flex; align-items: center; min-height: 44px; }
  /* 页脚后台入口同样给足点按高度 */
  .footer-admin { display: inline-flex; align-items: center; min-height: 44px; }
  /* 表格滚动的余量：浅底块内边距收紧，避免手机两侧只剩 16px */
  .paper-section { padding-block: 56px; }
}

/* ---------- 手机端：两张表格改为卡片式（否则三列挤压、价格被拆行） ---------- */
@media (max-width: 720px) {
  .price-table, .deliverables { display: block; border: 0; background: none; }
  .price-table thead, .deliverables thead { display: none; }
  .price-table tbody, .deliverables tbody { display: block; }
  .price-table tr, .deliverables tr {
    display: block; background: #fff; border: 1px solid var(--line);
    border-radius: 12px; padding: 14px 16px; margin-bottom: 10px;
  }
  .price-table td, .deliverables td {
    display: block; border: 0; padding: 2px 0; text-align: left; word-break: break-word;
  }
  .price-table td:first-child { font-weight: 600; font-size: 16px; margin-bottom: 4px; }
  .price-table td:nth-child(2) {
    font-family: var(--mono); font-size: 17px; color: var(--aqua); white-space: nowrap; text-align: left;
  }
  .price-table td:nth-child(3) { color: var(--txt-1); }
  .deliverables td:first-child { font-weight: 600; font-size: 16px; margin-bottom: 4px; color: var(--txt-0); }
  .deliverables td:nth-child(2) { color: var(--txt-1); }
}

/* ============================================================
   科技感增强层（2026-10-22）—— 纯 CSS + 少量 JS，无外部依赖
   用法：区块加 .tech-band / .hud-grid；数字用 <span class="count-up" data-count="30597">
   ============================================================ */

/* 深色技术带：网格 + 双光晕 + 顶部扫描线 */
.tech-band {
  position: relative; overflow: hidden;
  background: var(--dark); color: #fff;
  --txt-0: #fff; --txt-1: rgba(255,255,255,.72); --line: rgba(255,255,255,.16);
  --aqua: #78A9FF; --steel: #A6C8FF; --card-bg: rgba(255,255,255,.04);
}
.tech-band::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(120,169,255,.10) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,169,255,.10) 1px, transparent 1px);
  background-size: 44px 44px, 44px 44px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 40%, transparent 100%);
}
.tech-band::after {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 2px; pointer-events: none;
  background: linear-gradient(90deg, transparent, #78A9FF, transparent);
  opacity: .9; animation: scanDown 6s linear infinite;
}
@keyframes scanDown {
  0% { transform: translateY(0); opacity: 0; }
  8% { opacity: .95; }
  92% { opacity: .95; }
  100% { transform: translateY(70vh); opacity: 0; }
}
.tech-band > .container { position: relative; z-index: 1; }

/* 浅底区块的 HUD 网格（弱） */
.hud-grid {
  position: relative;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 40px 40px, 40px 40px;
}

/* 数字条：等宽大数 + 单位 */
.metric-row {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1px; background: var(--line); border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden; margin: 28px 0 0;
}
.metric {
  background: var(--card-bg, #fff); padding: 22px 20px; text-align: left;
}
.metric .n {
  display: block; font-family: var(--mono); font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 700; letter-spacing: -.02em; color: var(--aqua); line-height: 1.1;
}
.metric .n .unit { font-size: 15px; margin-left: 3px; letter-spacing: 0; }
.metric .k {
  display: block; margin-top: 8px; font-size: 13.5px; color: var(--txt-1); line-height: 1.6;
}

/* 流程轨道：把长文字步骤变成流水线 */
.flow-rail {
  position: relative; margin: 30px 0 0;
  padding-left: 26px;
}
.flow-rail::before {
  content: ""; position: absolute; left: 7px; top: 8px; bottom: 8px; width: 2px;
  background: linear-gradient(180deg, var(--aqua), rgba(15,98,254,.18));
  border-radius: 2px;
}
.flow-step {
  position: relative; padding: 0 0 26px 0;
}
.flow-step:last-child { padding-bottom: 0; }
.flow-step::before {
  content: ""; position: absolute; left: -25px; top: 6px; width: 14px; height: 14px;
  border-radius: 50%; background: #fff; border: 2px solid var(--aqua);
  box-shadow: 0 0 0 4px rgba(15,98,254,.10);
}
.flow-step.is-live::before { animation: nodePulse 2.4s ease-in-out infinite; }
@keyframes nodePulse {
  0%,100% { box-shadow: 0 0 0 4px rgba(15,98,254,.10); }
  50% { box-shadow: 0 0 0 9px rgba(15,98,254,.04); }
}
.flow-step h3 {
  font-size: 17px; margin: 0 0 6px; display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap;
}
.flow-step h3 .idx {
  font-family: var(--mono); font-size: 12.5px; color: var(--aqua); letter-spacing: .06em;
}
.flow-step p { margin: 0; color: var(--txt-1); font-size: 15.5px; line-height: 1.75; }
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.chip {
  font-size: 12.5px; line-height: 1; padding: 7px 11px; border-radius: 999px;
  background: rgba(15,98,254,.08); color: var(--steel); border: 1px solid rgba(15,98,254,.18);
  white-space: nowrap;
}
.tech-band .chip { background: rgba(120,169,255,.14); color: #A6C8FF; border-color: rgba(120,169,255,.3); }

/* 行业系统卡：输入 → 系统 → 输出 三段式 */
.sys-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 26px; }
.sys-card {
  position: relative; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--card-bg, #fff); padding: 22px 20px 20px;
  transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}
.sys-card:hover { transform: translateY(-4px); border-color: rgba(15,98,254,.4); box-shadow: 0 16px 40px rgba(15,98,254,.12); }
.sys-card::after {
  content: ""; position: absolute; top: 0; left: -60%; width: 40%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(120,169,255,.22), transparent);
  transform: skewX(-14deg); opacity: 0; transition: none;
}
.sys-card:hover::after { animation: sweep .9s ease-out; }
@keyframes sweep {
  0% { left: -60%; opacity: 0; }
  20% { opacity: 1; }
  100% { left: 120%; opacity: 0; }
}
.sys-card .sys-tag {
  display: inline-block; font-family: var(--mono); font-size: 11.5px; letter-spacing: .08em;
  color: var(--aqua); border: 1px solid rgba(15,98,254,.28); border-radius: 6px;
  padding: 4px 8px; margin-bottom: 12px;
}
.sys-card h3 { font-size: 17.5px; margin: 0 0 8px; }
.sys-card .pain { font-size: 14.5px; color: var(--txt-1); line-height: 1.72; margin: 0 0 14px; }
.sys-flow { display: grid; gap: 8px; }
.sys-flow .ln {
  display: flex; align-items: flex-start; gap: 10px; font-size: 14.5px; line-height: 1.6;
}
.sys-flow .lb {
  flex: 0 0 auto; font-family: var(--mono); font-size: 11px; letter-spacing: .06em;
  color: #fff; background: var(--aqua); border-radius: 4px; padding: 3px 6px; margin-top: 2px;
}
.sys-flow .ln.out .lb { background: var(--steel); }

/* 对比表（族谱：别家怎么做 vs 我们怎么做） */
.cmp-table { width: 100%; border-collapse: collapse; margin-top: 24px; font-size: 15px; }
.cmp-table th, .cmp-table td {
  border-bottom: 1px solid var(--line); padding: 14px 16px; text-align: left; vertical-align: top; line-height: 1.7;
}
.cmp-table thead th { font-size: 13px; letter-spacing: .06em; color: var(--txt-1); font-weight: 600; }
.cmp-table tbody th { font-weight: 600; width: 22%; }
.cmp-table .us { background: rgba(15,98,254,.05); }
.cmp-table .us strong { color: var(--aqua); }

/* 延迟显现（同组子元素依次进入） */
.js .reveal-lag > * { opacity: 0; transform: translateY(14px); transition: opacity .5s ease, transform .5s ease; }
.js .reveal-lag.is-in > * { opacity: 1; transform: none; }
.reveal-lag.is-in > *:nth-child(2) { transition-delay: .07s; }
.reveal-lag.is-in > *:nth-child(3) { transition-delay: .14s; }
.reveal-lag.is-in > *:nth-child(4) { transition-delay: .21s; }
.reveal-lag.is-in > *:nth-child(5) { transition-delay: .28s; }
.reveal-lag.is-in > *:nth-child(6) { transition-delay: .35s; }
.reveal-lag.is-in > *:nth-child(7) { transition-delay: .42s; }
.reveal-lag.is-in > *:nth-child(8) { transition-delay: .49s; }
.reveal-lag.is-in > *:nth-child(9) { transition-delay: .56s; }
.reveal-lag.is-in > *:nth-child(10) { transition-delay: .63s; }

@media (max-width: 960px) {
  .sys-grid { grid-template-columns: repeat(2, 1fr); }
  .metric-row { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .sys-grid { grid-template-columns: 1fr; }
  .metric-row { grid-template-columns: repeat(2, 1fr); }
  .metric { padding: 16px 14px; }
  .metric .n { font-size: 26px; }
  .metric .k { font-size: 12.5px; }
  .flow-rail { padding-left: 22px; }
  .cmp-table { display: block; overflow-x: auto; white-space: nowrap; }
  .cmp-table th, .cmp-table td { white-space: normal; padding: 11px 12px; }
}

/* ============================================================
   流程仪表盘（.flowboard）—— 十阶段工作流的交互式展示（2026-10-22）
   渐进增强：无 JS 时 10 个阶段竖排全显示；有 JS 时变成可点轨道 + 单屏切换
   ============================================================ */
.flowboard { margin-top: 28px; }

/* 顶部轨道：10 个节点 + 进度线 */
.fb-track {
  position: relative; display: none; align-items: center; justify-content: space-between;
  gap: 4px; padding: 0 2px 18px; margin-bottom: 6px;
}
html.js .fb-track { display: flex; }
.fb-rail {
  position: absolute; left: 4%; right: 4%; top: 21px; height: 2px;
  background: rgba(15, 98, 254, .14); border-radius: 2px; overflow: hidden;
}
.fb-rail i {
  display: block; height: 100%; width: 0;
  background: linear-gradient(90deg, var(--aqua), #78A9FF);
  transition: width .45s cubic-bezier(.4, 0, .2, 1);
}
.fb-node {
  position: relative; z-index: 1; flex: 1 1 0;
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  background: none; border: 0; padding: 0; cursor: pointer;
  color: var(--txt-1); min-height: 44px; touch-action: manipulation;
  font: inherit;
}
.fb-node .fb-dot {
  width: 44px; height: 44px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: #fff; border: 2px solid var(--line);
  font-family: var(--mono); font-size: 12.5px; font-weight: 600; letter-spacing: .02em;
  transition: transform .25s ease, border-color .25s ease, background .25s ease, color .25s ease;
}
.fb-node:hover .fb-dot { border-color: var(--aqua); color: var(--aqua); transform: translateY(-2px); }
.fb-node.is-done .fb-dot { border-color: rgba(15,98,254,.45); color: var(--aqua); }
.fb-node.is-active .fb-dot {
  background: var(--aqua); border-color: var(--aqua); color: #fff;
  transform: translateY(-2px) scale(1.06);
  box-shadow: 0 8px 22px rgba(15,98,254,.35);
}
.fb-node .fb-lbl {
  font-size: 11.5px; line-height: 1.3; text-align: center; max-width: 84px;
  opacity: .55; transition: opacity .25s ease, color .25s ease;
  display: none;
}
.fb-node.is-active .fb-lbl { opacity: 1; color: var(--aqua); font-weight: 600; display: block; }
@media (min-width: 960px) { .fb-node .fb-lbl { display: block; } }

/* 面板区 */
.fb-panels { position: relative; }
.fb-panel {
  position: relative;
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--card-bg, #fff);
  padding: clamp(18px, 2.6vw, 28px) clamp(88px, 9vw, 108px) clamp(18px, 2.6vw, 28px) clamp(18px, 2.6vw, 28px);
  display: grid; grid-template-columns: 1fr; gap: 0; align-items: start;
  margin-bottom: 14px;
}
html.js .fb-panel { display: none; margin-bottom: 0; }
html.js .fb-panel.is-active { display: grid; animation: fbIn .42s cubic-bezier(.4,0,.2,1); }
@keyframes fbIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}
.fb-idx {
  font-family: var(--mono); font-size: 12.5px; letter-spacing: .12em; color: var(--aqua);
  margin: 0 0 10px;
}
.fb-idx b { font-size: 34px; letter-spacing: -.02em; margin-right: 4px; }
.fb-panel h3 { font-size: clamp(19px, 2.2vw, 25px); margin: 0 0 12px; }
.fb-desc { margin: 0 0 16px; color: var(--txt-1); font-size: 16px; line-height: 1.8; }
.fb-art { position: absolute; top: clamp(14px, 2vw, 20px); right: clamp(14px, 2vw, 20px); display: block; }
.fb-art .fb-glyph {
  width: 58px; height: 58px;
  color: var(--aqua);
  padding: 13px; box-sizing: border-box;
  border: 1px solid rgba(15, 98, 254, .22); border-radius: 16px;
  background: radial-gradient(circle at 30% 25%, rgba(15, 98, 254, .10), transparent 62%);
  stroke-width: 1.5;
}
html.js .fb-panel.is-active .fb-glyph { animation: glyphIn .5s ease; }
@keyframes glyphIn {
  from { opacity: 0; transform: scale(.9) rotate(-4deg); }
  to { opacity: 1; transform: none; }
}

/* 控制条 */
.fb-ctrl {
  display: none; align-items: center; gap: 14px; margin-top: 16px;
}
html.js .fb-ctrl { display: flex; }
.fb-play {
  display: inline-flex; align-items: center; gap: 8px;
  min-height: 44px; padding: 0 16px; border-radius: 999px;
  border: 1px solid rgba(15,98,254,.28); background: rgba(15,98,254,.06);
  color: var(--steel); font: inherit; font-size: 14px; cursor: pointer;
  touch-action: manipulation; transition: background .2s ease, border-color .2s ease;
}
.fb-play:hover { background: rgba(15,98,254,.12); border-color: var(--aqua); }
.fb-play[aria-pressed="true"] { background: var(--aqua); border-color: var(--aqua); color: #fff; }
.fb-hint { font-size: 12.5px; color: var(--txt-1); }

/* 手机端：十节点轨道换成「上一步 / 计数 / 下一步」（避免轨道被压成细条、也避免横向溢出） */
.fb-mnav { display: none; align-items: center; justify-content: space-between; gap: 10px; margin-top: 14px; }
.fb-arrow {
  width: 52px; height: 44px; flex: 0 0 auto; border-radius: 12px;
  border: 1px solid rgba(15,98,254,.28); background: rgba(15,98,254,.06); color: var(--steel);
  font-size: 20px; line-height: 1; cursor: pointer; touch-action: manipulation;
}
.fb-arrow:active { background: rgba(15,98,254,.16); }
.fb-count { font-family: var(--mono); font-size: 13px; color: var(--txt-1); letter-spacing: .06em; }

@media (max-width: 720px) {
  html.js .fb-track { display: none; }
  html.js .fb-mnav { display: flex; }
  .fb-panel { padding: 18px 16px; }
  .fb-art { display: none; }
  .fb-idx b { font-size: 26px; }
  .fb-desc { font-size: 15.5px; }
}

/* ============================================================
   科技感 v2：五种不同特效（每类板块用不同手法，避免全站只剩“淡入”）
   ① 标题逐字上浮  ② 深色带鼠标聚光灯  ③ 卡片 3D 倾斜
   ④ 顶部滚动进度  ⑤ 对照表逐行亮起  ⑥ SVG 连线自绘
   ============================================================ */

/* ① 标题逐字上浮（h1 / 部分 h2 由 JS 加 .split-t） */
.split-t { display: inline-block; }
.split-t .ch {
  display: inline-block; will-change: transform, opacity;
  opacity: 0; transform: translateY(.42em);
  animation: chIn .58s cubic-bezier(.2,.7,.2,1) forwards;
}
@keyframes chIn { to { opacity: 1; transform: none; } }
.split-t .ch.sp { width: .34em; }

/* ② 深色技术带：鼠标跟随聚光灯（仅鼠标设备） */
.tech-band { position: relative; overflow: hidden; }
.tech-band .spot {
  position: absolute; inset: 0; pointer-events: none; z-index: 0;
  background: radial-gradient(360px circle at var(--mx, 50%) var(--my, 0%),
              rgba(120, 169, 255, .18), rgba(120, 169, 255, 0) 68%);
  opacity: 0; transition: opacity .35s ease;
}
.tech-band:hover .spot { opacity: 1; }
.tech-band > .container { position: relative; z-index: 1; }
@media (hover: none) { .tech-band .spot { display: none; } }

/* ③ 卡片 3D 倾斜（鼠标设备，进入即轻微跟随；不做大幅旋转以免晕） */
.tilt {
  transform-style: preserve-3d;
  transition: transform .3s cubic-bezier(.2,.7,.2,1), box-shadow .3s ease, border-color .3s ease;
}
.tilt.is-on { box-shadow: 0 20px 44px rgba(13, 26, 58, .13); border-color: rgba(15, 98, 254, .32); }

/* ④ 顶部滚动进度条 */
.scroll-progress {
  position: fixed; left: 0; top: 0; height: 2px; width: 0;
  z-index: 9999; pointer-events: none;
  background: linear-gradient(90deg, #0f62fe, #78A9FF 60%, #C7DBFF);
  box-shadow: 0 0 12px rgba(15, 98, 254, .55);
}

/* ⑤ 对照表逐行亮起（进入视口后一行接一行） */
html.js .cmp-table.tbl-fx tbody tr { opacity: 0; transform: translateY(8px); }
html.js .cmp-table.tbl-fx tbody tr.on {
  opacity: 1; transform: none;
  transition: opacity .5s ease, transform .5s cubic-bezier(.2,.7,.2,1);
}

/* ⑥ SVG 连线自绘（.draw 给 path/line 用，进入视口后跑一遍） */
html.js svg .draw {
  stroke-dasharray: var(--len, 400);
  stroke-dashoffset: var(--len, 400);
}
html.js svg.is-drawn .draw {
  animation: drawIn 1.5s cubic-bezier(.4, 0, .2, 1) forwards;
}
@keyframes drawIn { to { stroke-dashoffset: 0; } }

/* 族谱页：三段转化示意图（SVG 连线自绘） */
.fl-visual { width: 100%; height: auto; display: block; margin: 8px 0 0; }
.fl-visual .fl-t {
  font-family: var(--mono); font-size: 13px; letter-spacing: .04em;
  fill: var(--txt-1, #5b6b8c);
}
.fl-visual .fl-cap { font-size: 12px; fill: #8a97b0; }
@media (max-width: 720px) { .fl-visual .fl-t { font-size: 15px; } }

/* 首页：政策依据 badge */
.hero-badge {
  display: inline-flex; flex-wrap: wrap; align-items: center; gap: 8px;
  margin: 16px 0 4px; padding: 8px 14px; border-radius: 999px;
  border: 1px solid rgba(15, 98, 254, .26); background: rgba(15, 98, 254, .06);
  font-size: 13.5px; line-height: 1.6; color: var(--txt-1, #4a5a7a);
}
.hero-badge b { color: var(--aqua); font-weight: 600; }
@media (max-width: 720px) { .hero-badge { font-size: 13px; padding: 7px 12px; } }

/* 关于页：愿景引文块 */
.vision {
  margin: 0 0 16px; padding: 24px 28px;
  border-left: 3px solid var(--aqua);
  background: linear-gradient(90deg, rgba(15, 98, 254, .07), rgba(15, 98, 254, 0) 72%);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: clamp(16px, 1.9vw, 19.5px); line-height: 1.85; color: var(--txt-0);
}
.vision b { color: var(--aqua); }
@media (max-width: 720px) { .vision { padding: 18px 18px; font-size: 16px; } }

/* ============================================================
   行业切换板（.indboard）：五大试点行业 + 民生类
   流水线式胶囊切换，点行业看该行业的「龙头要求 → 系统做什么 → 交付」
   渐进增强：无 JS 时 6 个行业面板竖排全显示
   ============================================================ */
.indboard { margin-top: 26px; }

.ib-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.ib-tab {
  display: inline-flex; align-items: center; gap: 8px;
  min-height: 44px; padding: 8px 15px; border-radius: 999px;
  border: 1px solid var(--line); background: #fff; color: var(--txt-1);
  font: inherit; font-size: 14.5px; line-height: 1.25; cursor: pointer;
  touch-action: manipulation; position: relative;
  transition: border-color .22s ease, background .22s ease, color .22s ease, transform .22s ease;
}
.ib-tab .ib-n {
  font-family: var(--mono); font-size: 11.5px; font-weight: 600; letter-spacing: .04em;
  padding: 2px 6px; border-radius: 6px;
  background: rgba(15, 98, 254, .09); color: var(--aqua);
  transition: background .22s ease, color .22s ease;
}
.ib-tab:hover { border-color: var(--aqua); color: var(--aqua); transform: translateY(-1px); }
.ib-tab.is-active {
  background: var(--aqua); border-color: var(--aqua); color: #fff;
  box-shadow: 0 8px 20px rgba(15, 98, 254, .28);
}
.ib-tab.is-active .ib-n { background: rgba(255, 255, 255, .22); color: #fff; }

.ib-panels { position: relative; }
.ib-panel {
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--card-bg, #fff);
  padding: clamp(18px, 2.6vw, 30px); margin-bottom: 14px;
}
html.js .ib-panel { display: none; margin-bottom: 0; }
html.js .ib-panel.is-active { display: block; animation: fbIn .4s cubic-bezier(.4, 0, .2, 1); }

.ib-head h3 { font-size: clamp(19px, 2.2vw, 24px); margin: 0 0 10px; }
.ib-fact {
  margin: 0 0 20px; padding: 12px 14px; border-radius: 10px;
  background: rgba(15, 98, 254, .05); border-left: 2px solid rgba(15, 98, 254, .35);
  font-size: 14.5px; line-height: 1.8; color: var(--txt-1);
}

/* 三步流水线：龙头要求 → 系统做什么 → 交付 */
.ib-flow { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; }
.ib-step { position: relative; padding: 0 22px 0 18px; }
.ib-step + .ib-step { border-left: 1px dashed var(--line); }
.ib-step::before {
  content: ''; position: absolute; left: 0; top: 6px;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--aqua); box-shadow: 0 0 0 3px rgba(15, 98, 254, .14);
}
.ib-step + .ib-step::before { left: -4px; }
.ib-k {
  display: inline-block; font-family: var(--mono); font-size: 11.5px; letter-spacing: .08em;
  color: var(--aqua); text-transform: uppercase; margin-bottom: 7px;
}
.ib-step p { margin: 0; font-size: 15px; line-height: 1.8; color: var(--txt-1); }
.ib-step.out p { color: var(--txt-0); font-weight: 600; }

.ib-hint { margin: 14px 0 0; font-family: var(--mono); font-size: 12.5px; color: var(--txt-1); opacity: .8; }

@media (max-width: 860px) {
  .ib-flow { grid-template-columns: 1fr; gap: 14px; }
  .ib-step { padding: 0 0 0 18px; }
  .ib-step + .ib-step { border-left: 0; border-top: 1px dashed var(--line); padding-top: 14px; }
  .ib-step + .ib-step::before { left: 0; top: 18px; }
  .ib-tab { font-size: 14px; padding: 8px 13px; }
  .ib-fact { font-size: 14px; }
}

/* ---------- 动效纪律：减少动态效果 ---------- */
@media (prefers-reduced-motion: reduce) {
  html.js .reveal { opacity: 1; transform: none; }
  * { animation: none !important; transition: none !important; }
}

/* 首屏直接联系 & CTA 说明（2026-10-22 新增） */
.hero-call {
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px;
  margin-top: 20px; font-size: 15px; color: var(--txt-1);
}
.hero-call .call-link {
  display: inline-flex; align-items: center; min-height: 44px; padding: 0 16px;
  border-radius: 999px; border: 1px solid rgba(15, 98, 254, .34);
  background: rgba(15, 98, 254, .08);
  font-family: var(--mono); font-weight: 700; letter-spacing: .02em;
  color: var(--aqua); white-space: nowrap;
}
.hero-call .call-link:hover { background: rgba(15, 98, 254, .16); text-decoration: none; }
.hero-call .call-note { font-size: 13px; color: var(--txt-1); }
.cta-sub {
  max-width: 760px; margin: 16px auto 0; font-size: 15px; line-height: 1.7;
  color: var(--txt-1);
}