/* ==========================================================================
   广州国人信息科技有限公司 官网 —— 主样式表
   主色：腾讯蓝 #0052D9   辅助：国人红 #C8102E
   自适应断点：1200 / 992 / 768 / 560
   ========================================================================== */

/* ---------- 1. 设计变量 ---------- */
:root {
  --brand: #0052d9;
  --brand-600: #0047bd;
  --brand-700: #00389e;
  --brand-050: #eef4ff;
  --brand-100: #dce8ff;
  --accent: #c8102e;
  --accent-050: #fdeef0;

  --ink: #161a22;
  --ink-2: #454d5e;
  --ink-3: #7b8496;
  --ink-4: #a5acba;

  --bg: #ffffff;
  --bg-soft: #f5f7fb;
  --bg-deep: #0b1220;
  --line: #e7eaf2;
  --line-2: #f0f2f7;

  --radius-s: 8px;
  --radius: 14px;
  --radius-l: 20px;
  --radius-xl: 28px;

  --shadow-1: 0 2px 8px rgba(16, 24, 40, .05);
  --shadow-2: 0 8px 28px rgba(16, 24, 40, .08);
  --shadow-3: 0 18px 50px rgba(16, 24, 40, .12);
  --shadow-brand: 0 12px 30px rgba(0, 82, 217, .22);

  --max: 1200px;
  --header-h: 72px;

  --font: "Microsoft YaHei", "微软雅黑", -apple-system, BlinkMacSystemFont,
    "PingFang SC", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;

  --ease: cubic-bezier(.4, 0, .2, 1);
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-2);
  background: var(--bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5 {
  margin: 0;
  color: var(--ink);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -.01em;
}

p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }

a {
  color: inherit;
  text-decoration: none;
  transition: color .2s var(--ease);
}

img, svg { max-width: 100%; display: block; }

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- 3. 布局工具 ---------- */
.wrap {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 88px 0; }
.section--soft { background: var(--bg-soft); }
.section--tight { padding: 64px 0; }

.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.flex { display: flex; }
.between { justify-content: space-between; }
.center { justify-content: center; }
.vcenter { align-items: center; }
.wrapflex { flex-wrap: wrap; }
.gap-8 { gap: 8px; } .gap-12 { gap: 12px; }
.gap-16 { gap: 16px; } .gap-24 { gap: 24px; } .gap-32 { gap: 32px; }

/* ---------- 4. 通用文字组件 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--brand);
  text-transform: uppercase;
}
.eyebrow::before {
  content: "";
  width: 20px;
  height: 2px;
  background: var(--brand);
  border-radius: 2px;
}

.sec-head { text-align: center; max-width: 720px; margin: 0 auto 52px; }
.sec-head h2 { font-size: 34px; margin: 14px 0 14px; }
.sec-head p { font-size: 16px; color: var(--ink-3); }
.sec-head--left { text-align: left; margin-left: 0; }

/* 左红竖条标题（沿用贵司文档排版规范） */
.bar-title {
  display: inline-block;
  position: relative;
  padding-left: 14px;
  font-size: 22px;
  font-weight: 700;
  color: var(--ink);
}
.bar-title::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 4px; height: 20px;
  background: var(--accent);
  border-radius: 2px;
}

.text-brand { color: var(--brand); }
.text-accent { color: var(--accent); }
.muted { color: var(--ink-3); }

/* ---------- 5. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 26px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  transition: all .22s var(--ease);
}
.btn svg { width: 16px; height: 16px; }

.btn--primary {
  background: var(--brand);
  color: #fff;
  box-shadow: var(--shadow-brand);
}
.btn--primary:hover {
  background: var(--brand-700);
  transform: translateY(-2px);
  box-shadow: 0 16px 36px rgba(0, 82, 217, .3);
}

.btn--ghost {
  background: #fff;
  color: var(--brand);
  border-color: var(--brand-100);
}
.btn--ghost:hover {
  border-color: var(--brand);
  background: var(--brand-050);
  transform: translateY(-2px);
}

.btn--accent { background: var(--accent); color: #fff; }
.btn--accent:hover { background: #a70c25; transform: translateY(-2px); }

.btn--white { background: #fff; color: var(--brand-700); }
.btn--white:hover { transform: translateY(-2px); box-shadow: 0 14px 32px rgba(0,0,0,.18); }

.btn--outline-white {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,.4);
}
.btn--outline-white:hover { background: rgba(255,255,255,.12); border-color:#fff; }

.btn--sm { height: 40px; padding: 0 18px; font-size: 14px; }
.btn--block { width: 100%; }

.link-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 700;
  color: var(--brand);
}
.link-more svg { width: 15px; height: 15px; transition: transform .2s var(--ease); }
.link-more:hover { color: var(--brand-700); }
.link-more:hover svg { transform: translateX(4px); }

/* ---------- 6. 顶部条 & 导航 ---------- */
.topbar {
  background: var(--bg-deep);
  color: rgba(255,255,255,.72);
  font-size: 13px;
}
.topbar .wrap {
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.topbar a:hover { color: #fff; }
.topbar-right { display: flex; align-items: center; gap: 20px; }
/* span（工作时间/邮箱）和 a（座机/手机）统一用 inline-flex + gap，保证图标与数字垂直居中对齐 */
.topbar-right span,
.topbar-right a { display: inline-flex; align-items: center; gap: 6px; white-space: nowrap; }
.topbar-right svg { width: 14px; height: 14px; }

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s var(--ease), box-shadow .25s var(--ease);
}
.header.is-stuck {
  border-bottom-color: var(--line);
  box-shadow: 0 4px 18px rgba(16,24,40,.05);
}
.header .wrap {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

/* Logo */
.logo { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
.logo-img {
  height: 40px;
  width: auto;
  display: block;
}
/* 抽屉内 logo 略小 */
.drawer .logo-img { height: 36px; }
/* 页脚 logo 略大 */
.footer .logo-img { height: 48px; }

/* 导航菜单 */
.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  position: relative;
  padding: 10px 15px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-2);
  border-radius: 8px;
}
.nav a:hover { color: var(--brand); background: var(--brand-050); }
.nav a.is-active { color: var(--brand); font-weight: 700; }
.nav a.is-active::after {
  content: "";
  position: absolute;
  left: 15px; right: 15px; bottom: 2px;
  height: 2px; background: var(--brand); border-radius: 2px;
}

.header-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.header-phone {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 15px;
  font-weight: 700;
  color: var(--accent);
}
.header-phone svg { width: 16px; height: 16px; }

/* 汉堡按钮 */
.hamburger {
  display: none;
  width: 42px; height: 42px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  cursor: pointer;
  padding: 0;
  place-items: center;
}
.hamburger i {
  display: block;
  width: 18px; height: 2px;
  background: var(--ink);
  border-radius: 2px;
  position: relative;
  transition: background .2s;
}
.hamburger i::before,
.hamburger i::after {
  content: "";
  position: absolute; left: 0;
  width: 18px; height: 2px;
  background: var(--ink); border-radius: 2px;
  transition: transform .25s var(--ease);
}
.hamburger i::before { top: -6px; }
.hamburger i::after { top: 6px; }
.hamburger.is-open i { background: transparent; }
.hamburger.is-open i::before { transform: translateY(6px) rotate(45deg); }
.hamburger.is-open i::after { transform: translateY(-6px) rotate(-45deg); }

/* 移动端抽屉 */
.drawer {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: rgba(11,18,32,.45);
  opacity: 0;
  visibility: hidden;
  transition: opacity .25s var(--ease), visibility .25s;
}
.drawer.is-open { opacity: 1; visibility: visible; }
.drawer-panel {
  position: absolute;
  top: 0; right: 0;
  width: min(320px, 86vw);
  height: 100%;
  background: #fff;
  padding: 84px 24px 32px;
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform .28s var(--ease);
  box-shadow: -10px 0 40px rgba(0,0,0,.14);
}
.drawer.is-open .drawer-panel { transform: translateX(0); }
.drawer-panel a {
  display: block;
  padding: 15px 4px;
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
  border-bottom: 1px solid var(--line-2);
}
.drawer-panel a.is-active { color: var(--brand); }
.drawer-cta { margin-top: 26px; display: grid; gap: 12px; }

/* ---------- 7. 首屏 Hero ---------- */
/* 首屏底图 —— 浅色 AI 科技感（assets/img/hero-ai-bg.jpg + .webp）
   「浅色首屏 v2」：底图全幅都有内容（左侧几何线框+柱状图、中间神经网络节点、
   右侧 AI 芯片），蒙版大幅降低让整张底图铺满 hero，不再有左侧空白条带。

   蒙版仅在 0~55% 文字区做保护（最深 0.30），保证 h1 深色文字
   （#0d1b3e，亮度 0.027）在叠加背景上对比度 ≥ 12:1（WCAG AAA 7:1）。
   即使底图局部出现深色（如 #1f6feb 蓝色线条 lum=0.18），叠加 0.30 蒙版后
   背景亮度仍 ≥ 0.40，对比度仍 ≥ 5.8:1（WCAG AA 4.5:1）。 */
.hero {
  position: relative;
  padding: 78px 0 96px;
  background-color: #eef3fb;                  /* 兜底浅蓝白 */
  background-image:
    linear-gradient(90deg,
      rgba(238,243,251,0.30) 0%,              /* 文字区只留 30% 保护，让底图科技元素透出 */
      rgba(238,243,251,0.15) 30%,
      rgba(238,243,251,0.05) 55%,
      rgba(238,243,251,0.00) 100%),            /* 右侧完全透明，AI 芯片原貌露出 */
    image-set(
      url('../img/hero-ai-bg.webp?v=20260903t') type('image/webp'),
      url('../img/hero-ai-bg.jpg?v=20260903t')  type('image/jpeg')
    ),
    url('../img/hero-ai-bg.jpg?v=20260903t');  /* 老浏览器兜底 */
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  overflow: hidden;

  /* 浅底专用文字色板（与全局色系一致；--hero-brand 用回品牌蓝） */
  --hero-ink:   #0d1b3e;                        /* 主标深蓝黑 */
  --hero-ink-2: #1f2d4d;                        /* 副文：原 #3a4761 在底图深色装饰上偏淡，v2 加深一档 */
  --hero-ink-3: #5b6880;                        /* 注脚浅灰蓝 */
  --hero-brand: #0052d9;                        /* 品牌蓝 */
  --hero-line:  rgba(13,27,62,.12);             /* 分隔线 */
}
/* 不再叠加 ::after 网格：图片本身已有足够的科技纹理 */
.hero .wrap { position: relative; z-index: 1; }

/* ---- 浅底下的深色文字 ---- */
.hero h1 { color: var(--hero-ink); }
.hero .text-brand { color: var(--hero-brand); }
.hero h1 em { color: var(--hero-brand); }
.hero h1 em::after { background: rgba(0,82,217,.18); }   /* 浅底用稍深的品牌色底纹 */
.hero-sub { color: var(--hero-ink-2); }
.hero-stats { border-top-color: var(--hero-line); }
.hero .stat b { color: var(--hero-ink); }
.hero .stat b span { color: var(--hero-brand); }
.hero .stat span { color: var(--hero-ink-3); }

/* 徽标 / 标签 / 次要按钮：浅色首屏下用标准浅色样式（白底+品牌描边） */
.hero .hero-badge {
  background: #fff;
  border-color: var(--brand-100);
  color: var(--brand-700);
  box-shadow: var(--shadow-1);
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}
.hero .tag {
  background: #fff;
  border-color: var(--line);
  color: var(--ink-2);
}
.hero .btn--ghost {
  background: #fff;
  border-color: var(--line);
  color: var(--ink);
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}
.hero .btn--ghost:hover {
  background: var(--bg-soft);
  border-color: var(--brand);
  color: var(--brand);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 56px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  height: 34px;
  padding: 0 15px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--brand-100);
  color: var(--brand-700);
  font-size: 13px;
  font-weight: 700;
  box-shadow: var(--shadow-1);
}
.hero-badge i {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-050);
}

.hero h1 {
  margin: 22px 0 20px;
  font-size: 46px;
  line-height: 1.28;
  font-weight: 800;
}
.hero h1 em {
  font-style: normal;
  color: var(--brand);
  position: relative;
  white-space: nowrap;
}
.hero h1 em::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 4px;
  height: 9px;
  background: rgba(0,82,217,.15);
  border-radius: 4px;
  z-index: -1;
}
.hero-sub {
  font-size: 17px;
  line-height: 1.9;
  color: var(--ink-2);
  max-width: 560px;
}
.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; margin: 24px 0 32px; }
.tag {
  height: 32px;
  padding: 0 14px;
  display: inline-flex;
  align-items: center;
  border-radius: 8px;
  background: #fff;
  border: 1px solid var(--line);
  font-size: 13px;
  color: var(--ink-2);
  font-weight: 500;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* Hero 数据条 */
.hero-stats {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.stat b {
  display: block;
  font-size: 32px;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -.02em;
}
.stat b span { font-size: 18px; color: var(--brand); margin-left: 2px; }
.stat span { font-size: 13px; color: var(--ink-3); }

/* Hero 视觉（纯 SVG/CSS） */
.hero-visual { position: relative; }
.hero-card {
  background: #fff;                                  /* 浅色首屏用不透明白卡，干净专业 */
  border: 1px solid var(--line-2);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-2);
  padding: 22px;
  position: relative;
  overflow: hidden;
}
.hero-card-head {
  display: flex; align-items: center; justify-content: space-between;
  padding-bottom: 16px; border-bottom: 1px solid var(--line-2);
  margin-bottom: 16px;
}
.hero-card-head h4 { font-size: 15px; }
.chip {
  height: 26px; padding: 0 11px;
  display: inline-flex; align-items: center; gap: 6px;
  border-radius: 999px;
  background: var(--brand-050);
  color: var(--brand-700);
  font-size: 12px; font-weight: 700;
}
.chip i { width: 6px; height: 6px; border-radius: 50%; background: var(--brand); }

.kpi-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 18px; }
.kpi {
  padding: 14px;
  border-radius: var(--radius);
  background: var(--bg-soft);
  border: 1px solid var(--line-2);
}
.kpi small { display: block; font-size: 12px; color: var(--ink-3); margin-bottom: 4px; }
.kpi b { font-size: 21px; color: var(--ink); }
.kpi b.up { color: var(--accent); }

.float-card {
  position: absolute;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-2);
  padding: 12px 15px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  animation: floaty 5s ease-in-out infinite;
}
.float-card i {
  width: 28px; height: 28px; border-radius: 8px;
  display: grid; place-items: center;
  background: var(--brand-050);
  color: var(--brand);
}
.float-card i svg { width: 15px; height: 15px; }
.float-card--1 { left: -34px; top: 26%; }
.float-card--2 { right: -26px; bottom: 14%; animation-delay: -2.4s; }

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

/* ---------- 8. 合作伙伴条 ---------- */
.partners { padding: 30px 0; background: #fff; border-bottom: 1px solid var(--line-2); }
.partners-inner { display: flex; align-items: center; gap: 26px; }
.partners-label { font-size: 13px; color: var(--ink-3); font-weight: 600; flex: none; }

/* 跑马灯视口：两侧渐隐，暗示可滚动 */
.partners-viewport {
  flex: 1 1 auto; min-width: 0; overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 40px, #000 calc(100% - 40px), transparent 100%);
          mask-image: linear-gradient(90deg, transparent 0, #000 40px, #000 calc(100% - 40px), transparent 100%);
}
.partners-track {
  display: flex; width: max-content;
  animation: partners-scroll 44s linear infinite;
  will-change: transform;
}
/* 鼠标悬停暂停，方便看清某一家 */
.partners-viewport:hover .partners-track,
.partners-viewport:focus-within .partners-track { animation-play-state: paused; }
.partners-group { display: flex; align-items: center; }
@keyframes partners-scroll { to { transform: translate3d(-50%, 0, 0); } }

.partner-badge {
  display: inline-flex; align-items: center; gap: 10px;
  margin-right: 40px;              /* 用 margin 而非 gap，保证两份内容等宽、循环无缝 */
  font-size: 16px; font-weight: 700;
  color: var(--ink-3);             /* 默认深灰：比正文淡、比纯黑柔和，不抢戏 */
  opacity: .65;                    /* 整体淡一档；hover 恢复到 1 */
  white-space: nowrap;
  transition: opacity .22s var(--ease), color .22s var(--ease);
}
.partner-badge:hover { opacity: 1; color: var(--ink); }

/* logo 图标容器：把品牌真 logo 自适应到高度 28px，宽度按比例，最长 140px */
.partner-badge .partner-logo {
  display: inline-flex; align-items: center; justify-content: center;
  height: 28px; line-height: 0;
}
.partner-badge .partner-logo img {
  display: block;
  height: 28px; width: auto; max-width: 140px;
  object-fit: contain;
}

/* 无 logo 时的回退小方块（单字徽标） */
.partner-badge .partner-fallback {
  width: 26px; height: 26px; border-radius: 7px;
  display: grid; place-items: center;
  background: var(--bg-soft);
  color: var(--brand);
  font-size: 13px; font-weight: 800;
}

/* ---------- 9. 卡片通用 ---------- */
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  padding: 30px 26px;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
  height: 100%;
}
.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-2);
  border-color: var(--brand-100);
}

.icon-box {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--brand-050), #e3edff);
  color: var(--brand);
  margin-bottom: 18px;
}
.icon-box svg { width: 25px; height: 25px; }
.icon-box--accent {
  background: linear-gradient(135deg, var(--accent-050), #fce3e7);
  color: var(--accent);
}

.card h3 { font-size: 19px; margin-bottom: 10px; }
.card p { font-size: 14.5px; color: var(--ink-3); line-height: 1.85; }

/* 优势卡（带序号） */
.why-card { position: relative; overflow: hidden; }
.why-card .num {
  position: absolute;
  right: 18px; bottom: 6px;
  font-size: 68px;
  font-weight: 800;
  color: rgba(0,82,217,.055);
  line-height: 1;
  letter-spacing: -.04em;
}
.why-card ul { margin-top: 14px; display: grid; gap: 8px; }
.why-card li {
  font-size: 14px;
  color: var(--ink-3);
  display: flex; gap: 8px; align-items: flex-start;
}
.why-card li::before {
  content: "";
  flex-shrink: 0;
  width: 16px; height: 16px;
  margin-top: 5px;
  border-radius: 50%;
  background: var(--brand-050) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230052D9' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/10px no-repeat;
}

/* ---------- 10. 产品卡 ---------- */
.product-card {
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}
.product-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--brand), #5aa2ff);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s var(--ease);
}
.product-card:hover::before { transform: scaleX(1); }

.product-vendor {
  display: inline-flex;
  align-self: flex-start;
  height: 24px;
  padding: 0 10px;
  align-items: center;
  border-radius: 6px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  font-size: 12px;
  font-weight: 700;
  color: var(--ink-2);
  margin-bottom: 14px;
}
.product-vendor.is-hot { background: var(--accent-050); border-color: #f6cdd4; color: var(--accent); }
.product-vendor.is-brand { background: var(--brand-050); border-color: var(--brand-100); color: var(--brand-700); }

.product-card ul { margin-top: 16px; display: grid; gap: 7px; }
.product-card li {
  font-size: 13.5px;
  color: var(--ink-3);
  padding-left: 17px;
  position: relative;
}
.product-card li::before {
  content: "";
  position: absolute; left: 0; top: 10px;
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--brand);
  opacity: .5;
}
.product-foot {
  margin-top: auto;
  padding-top: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

/* ---------- 10.5 IT 基础设施（首页紧凑入口条） ---------- */
.infra-strip {
  margin-top: 52px;
  padding: 30px 34px;
  border-radius: var(--radius-l);
  background: #fff;
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: 34px;
  flex-wrap: wrap;
}
/* 首页两条紧凑入口条上下相邻时收紧间距（默认 margin-top:52px 太散） */
.infra-strip + .infra-strip { margin-top: 18px; }
.infra-strip-text { flex: 1 1 320px; min-width: 0; }
.infra-strip-text h3 {
  font-size: 19px;
  margin: 8px 0 8px;
}
.infra-strip-text p {
  font-size: 14px;
  color: var(--ink-3);
  line-height: 1.75;
  margin: 0;
}
.infra-strip-tags {
  flex: 1 1 340px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.infra-tag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 14px;
  border-radius: 999px;
  background: var(--brand-050);
  border: 1px solid rgba(0, 82, 217, .14);
  font-size: 13px;
  color: var(--brand-700);
  transition: all .2s var(--ease);
}
.infra-tag:hover {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
  transform: translateY(-2px);
}
.infra-tag svg {
  width: 15px; height: 15px;
  flex-shrink: 0;
}
@media (max-width: 768px) {
  .infra-strip { padding: 24px 20px; gap: 20px; }
  .infra-strip-text h3 { font-size: 17px; }
}

/* ---------- 11. 解决方案 / 行业 ---------- */
.sol-card {
  border-radius: var(--radius-l);
  overflow: hidden;
  border: 1px solid var(--line);
  background: #fff;
  transition: all .25s var(--ease);
  height: 100%;
  display: flex;
  flex-direction: column;
}
.sol-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-2); }
.sol-visual {
  height: 132px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--brand) 0%, #3b7dff 100%);
}
.sol-visual svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.sol-visual b {
  position: absolute;
  left: 22px; bottom: 16px;
  color: #fff;
  font-size: 18px;
  font-weight: 800;
  text-shadow: 0 2px 10px rgba(0,0,0,.22);
}
.sol-body { padding: 22px 24px 26px; display: flex; flex-direction: column; flex: 1; }
.sol-body p { font-size: 14.5px; color: var(--ink-3); line-height: 1.85; }
.sol-body ul { margin-top: 14px; display: grid; gap: 7px; }
.sol-body li { font-size: 13.5px; color: var(--ink-3); }
.sol-body li::before { content: "· "; color: var(--brand); font-weight: 800; }

/* ---------- 12. 服务流程 ---------- */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; }
.step { position: relative; padding: 0 18px; text-align: center; }
.step::after {
  content: "";
  position: absolute;
  top: 27px;
  right: -12px;
  width: 24px; height: 2px;
  background: repeating-linear-gradient(90deg, var(--brand-100) 0 5px, transparent 5px 9px);
}
.step:last-child::after { display: none; }
.step-dot {
  width: 56px; height: 56px;
  margin: 0 auto 16px;
  border-radius: 50%;
  display: grid; place-items: center;
  background: #fff;
  border: 2px solid var(--brand-100);
  color: var(--brand);
  font-size: 18px; font-weight: 800;
  box-shadow: 0 0 0 6px var(--brand-050);
  transition: all .25s var(--ease);
}
.step:hover .step-dot { background: var(--brand); color: #fff; border-color: var(--brand); }
.step h4 { font-size: 16px; margin-bottom: 8px; }
.step p { font-size: 13.5px; color: var(--ink-3); line-height: 1.8; }

/* ---------- 13. 案例 ---------- */
.case-card {
  border-radius: var(--radius-l);
  overflow: hidden;
  border: 1px solid var(--line);
  background: #fff;
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: all .25s var(--ease);
}
.case-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-2); }
.case-visual {
  height: 150px;
  position: relative;
  background: linear-gradient(135deg, #0b1c3d, #14408f);
  display: grid; place-items: center;
  overflow: hidden;
}
.case-visual span {
  color: rgba(255,255,255,.95);
  font-size: 26px; font-weight: 800; letter-spacing: .04em;
}
.case-visual svg { position: absolute; inset: 0; }
.case-body { padding: 24px 26px 26px; display: flex; flex-direction: column; flex: 1; }
.case-body h3 { font-size: 18px; margin-bottom: 12px; }
.case-body .case-industry {
  font-size: 12px; font-weight: 700; color: var(--brand);
  margin-bottom: 8px; display: block;
}
.case-body p { font-size: 14.5px; color: var(--ink-3); line-height: 1.85; flex: 1; }
.case-results {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 10px; margin-top: 18px;
  padding-top: 18px; border-top: 1px dashed var(--line);
}
.case-results div { text-align: center; }
.case-results b { display: block; font-size: 19px; color: var(--accent); font-weight: 800; }
.case-results small { font-size: 11.5px; color: var(--ink-3); }

/* ---------- 14. 新闻 ---------- */
.news-item {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 22px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line-2);
  transition: all .2s var(--ease);
}
.news-item:first-child { padding-top: 0; }
.news-date {
  text-align: center;
  padding: 10px 6px;
  border-radius: var(--radius);
  background: var(--bg-soft);
  border: 1px solid var(--line-2);
  align-self: flex-start;
  transition: all .22s var(--ease);
}
.news-date b { display: block; font-size: 24px; font-weight: 800; color: var(--ink); line-height: 1.1; }
.news-date small { font-size: 12px; color: var(--ink-3); }
.news-item:hover .news-date { background: var(--brand); border-color: var(--brand); }
.news-item:hover .news-date b,
.news-item:hover .news-date small { color: #fff; }
.news-item h3 {
  font-size: 17px;
  margin-bottom: 8px;
  transition: color .2s var(--ease);
}
.news-item:hover h3 { color: var(--brand); }
.news-item p {
  font-size: 14px;
  color: var(--ink-3);
  line-height: 1.8;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ---------- 15. CTA 区 ---------- */
.cta {
  position: relative;
  padding: 72px 0;
  background: linear-gradient(120deg, #04122e 0%, #0b2a63 48%, #0052d9 100%);
  color: #fff;
  overflow: hidden;
}
.cta::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    radial-gradient(circle at 12% 20%, rgba(255,255,255,.10), transparent 42%),
    radial-gradient(circle at 88% 82%, rgba(200,16,46,.20), transparent 46%);
}
.cta .wrap { position: relative; z-index: 1; }
.cta-inner {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 48px;
  align-items: center;
}
.cta h2 { color: #fff; font-size: 32px; margin-bottom: 16px; }
.cta p { color: rgba(255,255,255,.78); font-size: 16px; line-height: 1.9; }
.cta-list { margin-top: 24px; display: grid; gap: 12px; }
.cta-list li {
  display: flex; align-items: center; gap: 10px;
  color: rgba(255,255,255,.9);
  font-size: 15px;
}
.cta-list li::before {
  content: "";
  width: 18px; height: 18px;
  flex-shrink: 0;
  border-radius: 50%;
  background: rgba(255,255,255,.16) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/11px no-repeat;
}

/* ---------- 16. 表单 ---------- */
.form-card {
  background: #fff;
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-3);
}
.form-card h3 { font-size: 21px; margin-bottom: 6px; }
.form-card > p { font-size: 14px; color: var(--ink-3); margin-bottom: 22px; }

.field { margin-bottom: 16px; }
.field label {
  display: block;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink-2);
  margin-bottom: 7px;
}
.field label em { color: var(--accent); font-style: normal; }
.field input,
.field textarea,
.field select {
  width: 100%;
  height: 46px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  background: #fff;
  font-size: 15px;
  transition: all .2s var(--ease);
}
.field textarea { height: 96px; padding: 11px 14px; resize: vertical; line-height: 1.7; }
.field input:hover,
.field textarea:hover,
.field select:hover { border-color: #cdd4e2; }
.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(0,82,217,.12);
}
.field input.is-error,
.field textarea.is-error { border-color: var(--accent); }
.field .err {
  display: none;
  font-size: 12.5px;
  color: var(--accent);
  margin-top: 5px;
}
.field .err.show { display: block; }

.agree {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  font-size: 13px;
  color: var(--ink-3);
  line-height: 1.6;
  margin: 4px 0 18px;
  cursor: pointer;
}
.agree input { margin-top: 3px; accent-color: var(--brand); flex-shrink: 0; }
.agree a { color: var(--brand); }

.form-note {
  margin-top: 14px;
  font-size: 12.5px;
  color: var(--ink-3);
  text-align: center;
}
.form-success {
  display: none;
  text-align: center;
  padding: 22px 8px;
}
.form-success i {
  width: 56px; height: 56px;
  margin: 0 auto 16px;
  border-radius: 50%;
  display: grid; place-items: center;
  background: #e8f8ef;
  color: #12a150;
}
.form-success i svg { width: 28px; height: 28px; }
.form-success h4 { font-size: 19px; margin-bottom: 8px; }
.form-success p { font-size: 14px; color: var(--ink-3); }

/* mailto 模式横幅：醒目蓝色，让客户明确知道"提交后会弹邮件窗口"，以及兜底路径 */
.form-mode-hint {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 18px;
  padding: 12px 14px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, #e8f1ff 0%, #f3f7ff 100%);
  border: 1px solid #cfdcfb;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-2);
}
.form-mode-hint i {
  flex-shrink: 0;
  width: 28px; height: 28px;
  border-radius: 50%;
  display: grid; place-items: center;
  background: var(--accent);
  color: #fff;
  margin-top: 1px;
}
.form-mode-hint i svg { width: 16px; height: 16px; }
.form-mode-hint b { color: var(--accent); font-size: 14px; display: block; margin-bottom: 2px; }
.form-mode-hint code {
  font-family: 'Menlo','Consolas',monospace;
  font-size: 12.5px;
  background: rgba(0,82,217,.08);
  padding: 1px 6px;
  border-radius: 4px;
  color: var(--accent);
}
.form-mode-hint span b { color: var(--ink); display: inline; font-size: 13px; background: none; padding: 0; }
@media (max-width: 560px) {
  .form-mode-hint { padding: 10px 12px; font-size: 12.5px; gap: 10px; }
  .form-mode-hint b { font-size: 13.5px; }
}

/* ---------- 17. 页脚 ---------- */
.footer {
  background: var(--bg-deep);
  color: rgba(255,255,255,.62);
  padding: 64px 0 0;
  font-size: 14px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 44px;
  padding-bottom: 46px;
}
.footer-about { margin: 18px 0 22px; line-height: 1.9; font-size: 14px; max-width: 320px; }
.footer h4 {
  color: #fff;
  font-size: 15px;
  margin-bottom: 18px;
  font-weight: 700;
}
.footer ul { display: grid; gap: 11px; }
.footer ul a { font-size: 14px; }
.footer ul a:hover { color: #fff; }
.footer-contact li {
  display: flex; gap: 10px;
  align-items: flex-start;
  line-height: 1.75;
}
.footer-contact svg {
  width: 15px; height: 15px;
  flex-shrink: 0;
  margin-top: 4px;
  color: var(--brand-100);
}
.qr-box {
  display: flex; gap: 16px; align-items: center;
  margin-top: 6px;
}
.qr {
  width: 92px; height: 92px;
  border-radius: 12px;
  background: #fff;
  padding: 7px;
  display: grid; place-items: center;
  flex-shrink: 0;
}
.qr img { width: 100%; height: 100%; object-fit: contain; display: block; }
.qr-box p { font-size: 13px; line-height: 1.7; color: rgba(255,255,255,.55); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.09);
  padding: 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: rgba(255,255,255,.45);
}
.footer-bottom a:hover { color: #fff; }
.footer-links { display: flex; gap: 20px; flex-wrap: wrap; }

/* ---------- 18. 页面头部（内页） ---------- */
.pagehead {
  position: relative;
  padding: 66px 0 74px;
  background: linear-gradient(135deg, #06183a 0%, #0c2f6d 55%, #0052d9 100%);
  color: #fff;
  overflow: hidden;
}
.pagehead::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    radial-gradient(circle at 85% 15%, rgba(255,255,255,.10), transparent 45%),
    radial-gradient(circle at 8% 92%, rgba(200,16,46,.22), transparent 50%);
}
.pagehead::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, #000, transparent);
  -webkit-mask-image: linear-gradient(to bottom, #000, transparent);
}
.pagehead .wrap { position: relative; z-index: 1; }
.pagehead h1 { color: #fff; font-size: 38px; margin: 12px 0 14px; }
.pagehead p { color: rgba(255,255,255,.76); font-size: 16px; max-width: 640px; line-height: 1.9; }

.breadcrumb {
  display: flex; align-items: center; gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,.6);
}
.breadcrumb a:hover { color: #fff; }

/* ---------- 19. 产品详情页块 ---------- */
.prod-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  padding: 56px 0;
  border-bottom: 1px solid var(--line-2);
}
.prod-block:last-child { border-bottom: none; }
.prod-block.reverse .prod-text { order: 2; }
.prod-text h2 { font-size: 28px; margin: 14px 0 14px; }
.prod-text > p { font-size: 15.5px; line-height: 1.95; color: var(--ink-2); }
.prod-points { margin: 22px 0 26px; display: grid; gap: 12px; }
.prod-points li {
  display: flex; gap: 11px; align-items: flex-start;
  font-size: 14.5px; color: var(--ink-2);
}
.prod-points li::before {
  content: "";
  flex-shrink: 0;
  width: 18px; height: 18px; margin-top: 4px;
  border-radius: 50%;
  background: var(--brand-050) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230052D9' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/11px no-repeat;
}

.prod-visual {
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-2);
  background: #fff;
}
.prod-visual-head {
  height: 44px;
  display: flex; align-items: center; gap: 7px;
  padding: 0 16px;
  background: var(--bg-soft);
  border-bottom: 1px solid var(--line-2);
}
.prod-visual-head i { width: 10px; height: 10px; border-radius: 50%; background: #dfe3ec; }
.prod-visual-head i:first-child { background: #ffbdbd; }
.prod-visual-head i:nth-child(2) { background: #ffe0a3; }
.prod-visual-head span { margin-left: 10px; font-size: 12.5px; color: var(--ink-3); }
.prod-visual-body { padding: 22px; }

/* ---------- 20. 关于我们 ---------- */
.about-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.about-intro h2 { font-size: 30px; margin-bottom: 18px; }
.about-intro p { font-size: 15.5px; line-height: 2; margin-bottom: 16px; }

.values { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.value-item {
  text-align: center;
  padding: 26px 16px;
  border-radius: var(--radius-l);
  background: #fff;
  border: 1px solid var(--line);
  transition: all .25s var(--ease);
}
.value-item:hover { border-color: var(--brand-100); box-shadow: var(--shadow-2); transform: translateY(-4px); }
.value-item b {
  display: block;
  font-size: 20px;
  color: var(--brand);
  margin-bottom: 8px;
  font-weight: 800;
}
.value-item span { font-size: 13.5px; color: var(--ink-3); line-height: 1.7; }

.milestone { position: relative; padding-left: 30px; }
.milestone::before {
  content: "";
  position: absolute;
  left: 6px; top: 6px; bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--brand), var(--brand-100));
}
.ms-item { position: relative; padding-bottom: 28px; }
.ms-item:last-child { padding-bottom: 0; }
.ms-item::before {
  content: "";
  position: absolute;
  left: -30px; top: 7px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--brand);
}
.ms-item b { display: block; font-size: 17px; color: var(--brand); margin-bottom: 5px; }
.ms-item p { font-size: 14.5px; color: var(--ink-3); line-height: 1.8; }

.honor-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.honor {
  text-align: center;
  padding: 26px 18px;
  border-radius: var(--radius-l);
  background: #fff;
  border: 1px solid var(--line);
  transition: all .25s var(--ease);
}
.honor:hover { transform: translateY(-4px); box-shadow: var(--shadow-2); border-color: var(--brand-100); }
.honor-medal {
  width: 54px; height: 54px;
  margin: 0 auto 14px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-050), #dbe7ff);
  color: var(--brand);
}
.honor-medal svg { width: 26px; height: 26px; }
.honor b { display: block; font-size: 15.5px; color: var(--ink); margin-bottom: 6px; }
.honor span { font-size: 13px; color: var(--ink-3); }

/* ---------- 21. 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 48px; align-items: start; }
.contact-info { display: grid; gap: 16px; }
.contact-item {
  display: flex; gap: 16px;
  padding: 22px 24px;
  border-radius: var(--radius-l);
  background: #fff;
  border: 1px solid var(--line);
  transition: all .22s var(--ease);
}
.contact-item:hover { border-color: var(--brand-100); box-shadow: var(--shadow-1); }
.contact-item i {
  width: 44px; height: 44px;
  flex-shrink: 0;
  border-radius: 12px;
  display: grid; place-items: center;
  background: var(--brand-050);
  color: var(--brand);
}
.contact-item i svg { width: 20px; height: 20px; }
.contact-item small { display: block; font-size: 12.5px; color: var(--ink-3); margin-bottom: 3px; }
.contact-item b { font-size: 16.5px; color: var(--ink); line-height: 1.6; }
/* 邮箱 / 电话可点击（mailto、tel），视觉上与普通文本一致，hover 时才显色 */
.contact-item b a.mail-link,
.contact-item b a.mail-link:visited,
.contact-item b a.tel-link,
.contact-item b a.tel-link:visited {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px dashed var(--brand-100);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.contact-item b a.mail-link:hover,
.contact-item b a.tel-link:hover { color: var(--brand); border-bottom-color: var(--brand); }

/* 联系页：办公地址实景底图
   图片由 config.js 引用 office-view.jpg?v=20260903t（绿地中央广场俯瞰图），
   此处用 cover 居中偏上，叠一层柔光让下方建筑层次更清。文字信息已挪到
   旁边的 .map-caption（独立图注卡片），保证中央写字楼不被遮挡。 */
.map-box {
  margin-top: 18px;
  height: 280px;
  border-radius: var(--radius-l);
  border: 1px solid var(--line);
  overflow: hidden;
  position: relative;
  background-color: #1a2a3a;                                /* 图片加载前的占位色 */
  background-image: url('../img/office-view.jpg?v=20260903t');
  background-size: cover;
  background-position: center 38%;                          /* 偏上一点，让前排建筑群居中 */
  background-repeat: no-repeat;
  box-shadow: 0 10px 32px rgba(15, 30, 50, .12);
}
/* 顶部天空偏亮、底部地面稍压暗，让建筑层次更立体、整体不泛灰 */
.map-box::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(15, 30, 50, .06) 0%, rgba(15, 30, 50, .20) 100%);
  pointer-events: none;
  z-index: 0;
}

/* 图片下的图注卡片 —— 让地址信息独立展示，不遮挡实景图里的写字楼 */
.map-caption {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 14px;
  padding: 13px 16px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--brand-050) 0%, #fff 100%);
  border: 1px solid var(--line);
  box-shadow: 0 4px 14px rgba(0, 82, 217, .08);
}
.map-caption > i {
  flex-shrink: 0;
  width: 38px; height: 38px;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  display: grid; place-items: center;
  box-shadow: 0 4px 12px rgba(0, 82, 217, .28);
}
.map-caption > i svg { width: 18px; height: 18px; color: #fff; }
.map-caption > div { min-width: 0; flex: 1; }
.map-caption b {
  display: block;
  font-size: 15px;
  color: var(--ink);
  margin-bottom: 3px;
  letter-spacing: .5px;
}
.map-caption span {
  display: block;
  font-size: 12.5px;
  color: var(--ink-3);
  line-height: 1.65;
}

/* ---------- 22. 资讯列表页 ---------- */
.news-list { display: grid; gap: 0; }
.news-card {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 28px;
  padding: 26px 0;
  border-bottom: 1px solid var(--line-2);
  align-items: center;
}
.news-card-visual {
  height: 150px;
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  background: linear-gradient(135deg, var(--brand-700), #3b7dff);
}
.news-card-visual svg { position: absolute; inset: 0; }
.news-card-body h3 { font-size: 19px; margin-bottom: 10px; transition: color .2s var(--ease); }
.news-card:hover .news-card-body h3 { color: var(--brand); }
.news-meta {
  display: flex; align-items: center; gap: 14px;
  font-size: 13px; color: var(--ink-3);
  margin-bottom: 10px;
}
.news-meta .cat {
  height: 24px; padding: 0 10px;
  display: inline-flex; align-items: center;
  border-radius: 6px;
  background: var(--brand-050);
  color: var(--brand-700);
  font-size: 12px; font-weight: 700;
}
.news-card-body p {
  font-size: 14.5px; color: var(--ink-3); line-height: 1.85;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}

/* ---------- 23. 常见问题 ---------- */
.faq { display: grid; gap: 12px; }
.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  overflow: hidden;
  transition: border-color .22s var(--ease);
}
.faq-item.is-open { border-color: var(--brand-100); }
.faq-q {
  width: 100%;
  padding: 18px 22px;
  background: none;
  border: 0;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.faq-q:hover { color: var(--brand); }
.faq-q i {
  flex-shrink: 0;
  width: 22px; height: 22px;
  position: relative;
}
.faq-q i::before,
.faq-q i::after {
  content: "";
  position: absolute;
  top: 50%; left: 50%;
  background: var(--brand);
  border-radius: 2px;
  transition: transform .25s var(--ease);
}
.faq-q i::before { width: 14px; height: 2px; transform: translate(-50%, -50%); }
.faq-q i::after { width: 2px; height: 14px; transform: translate(-50%, -50%); }
.faq-item.is-open .faq-q i::after { transform: translate(-50%, -50%) rotate(90deg); opacity: 0; }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s var(--ease);
}
.faq-a p {
  padding: 0 22px 20px;
  font-size: 14.5px;
  color: var(--ink-3);
  line-height: 1.95;
}

/* ---------- 24. 悬浮工具条 + 移动端底部转化条 ---------- */
.floatbar {
  position: fixed;
  right: 18px;
  bottom: 24px;
  z-index: 90;
  display: grid;
  gap: 10px;
}
.fbtn {
  width: 50px; height: 50px;
  border-radius: 50%;
  border: 0;
  cursor: pointer;
  display: grid; place-items: center;
  background: #fff;
  color: var(--brand);
  box-shadow: var(--shadow-2);
  transition: all .22s var(--ease);
}
.fbtn:hover { transform: translateY(-3px); box-shadow: var(--shadow-3); }
.fbtn svg { width: 21px; height: 21px; }
.fbtn--main { background: var(--brand); color: #fff; }
.fbtn--main:hover { background: var(--brand-700); }
.fbtn--top { opacity: 0; pointer-events: none; }
.fbtn--top.show { opacity: 1; pointer-events: auto; }

/* 移动端底部转化条：电话 / 微信 / 留言 */
.mobilebar {
  display: none;
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 95;
  background: #fff;
  border-top: 1px solid var(--line);
  box-shadow: 0 -6px 20px rgba(0,0,0,.08);
  padding: env(safe-area-inset-bottom, 0);
}
.mbar-btn {
  flex: 1;
  height: 56px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  background: none;
  border: 0;
  border-right: 1px solid var(--line-2);
  font-family: inherit;
  font-size: 12px;
  color: var(--ink-2);
  cursor: pointer;
  text-decoration: none;
}
.mbar-btn:last-child { border-right: 0; }
.mbar-btn svg { width: 19px; height: 19px; color: var(--ink-2); }
.mbar-btn:active { background: var(--bg-soft); }
.mbar-btn--cta {
  background: var(--brand);
  color: #fff;
}
.mbar-btn--cta svg { color: #fff; }
.mbar-btn--cta span { color: #fff; }
.mbar-btn--cta:active { background: var(--brand-700); }

/* 提示气泡 */
.toast {
  position: fixed;
  top: 84px;
  left: 50%;
  transform: translateX(-50%) translateY(-12px);
  z-index: 200;
  background: var(--ink);
  color: #fff;
  padding: 12px 20px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.5;
  opacity: 0;
  pointer-events: none;
  transition: opacity .22s var(--ease), transform .22s var(--ease);
  box-shadow: 0 12px 30px rgba(0,0,0,.22);
  white-space: pre-line;
  max-width: 90vw;
  text-align: center;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ---------- 25. 滚动进场动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }

  /* 跑马灯降级：关掉动画，改为静态换行、全部展示（避免停在半程位置被裁切） */
  .partners-viewport { overflow: visible; -webkit-mask-image: none; mask-image: none; }
  .partners-track { animation: none; width: auto; }
  .partners-group { flex-wrap: wrap; justify-content: center; gap: 14px 30px; }
  .partners-group:nth-child(2) { display: none; }
  .partner-badge { margin-right: 0; }
}

/* ---------- 26. 响应式 ---------- */
@media (max-width: 1080px) {
  .hero-grid { grid-template-columns: 1fr; gap: 44px; }
  .hero h1 { font-size: 40px; }
  .hero-visual { max-width: 560px; }
  .float-card--1 { left: -12px; }
  .float-card--2 { right: -8px; }
  .steps { grid-template-columns: repeat(3, 1fr); gap: 30px 0; }
  .step:nth-child(3)::after { display: none; }
  .values { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 34px; }

  /* 单列后文字横跨整个宽度，但底图已全幅有内容（左侧几何线框+柱状图、
     右侧 AI 芯片），纵向蒙版相应降低：顶部 h1 仍需 0.45 保护可读性，
     下半段 0.05~0.00 让底图透出，整体协调无大块空白。 */
  .hero {
    background-image:
      linear-gradient(180deg,
        rgba(238,243,251,0.45) 0%,
        rgba(238,243,251,0.30) 30%,
        rgba(238,243,251,0.10) 65%,
        rgba(238,243,251,0.00) 100%),
      image-set(
        url('../img/hero-ai-bg.webp?v=20260903t') type('image/webp'),
        url('../img/hero-ai-bg.jpg?v=20260903t')  type('image/jpeg')
      ),
      url('../img/hero-ai-bg.jpg?v=20260903t');
  }
}

@media (max-width: 992px) {
  .nav, .header-phone { display: none; }
  .hamburger { display: grid; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .cta-inner,
  .prod-block,
  .about-intro,
  .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .prod-block.reverse .prod-text { order: 0; }
  .honor-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .section { padding: 60px 0; }
  .section--tight { padding: 44px 0; }
  .wrap { padding: 0 18px; }
  .sec-head { margin-bottom: 36px; }
  .sec-head h2 { font-size: 26px; }

  .topbar .wrap { height: auto; padding-top: 8px; padding-bottom: 8px; font-size: 12px; }
  .topbar-right { gap: 12px; }
  .topbar-hello { display: none; }          /* 窄屏隐藏欢迎语，避免与电话挤在一起 */
  .topbar .wrap { justify-content: flex-end; }
  .topbar-mail { display: none; }

  .hero { padding: 48px 0 60px; }
  .hero h1 { font-size: 30px; line-height: 1.35; }

  /* 合作伙伴：窄屏让标题独占一行，跑马灯占满宽度 */
  .partners-inner { flex-wrap: wrap; gap: 16px; }
  .partners-label { width: 100%; text-align: center; }
  .partners-viewport {
    -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 24px, #000 calc(100% - 24px), transparent 100%);
    mask-image: linear-gradient(90deg, transparent 0, #000 24px, #000 calc(100% - 24px), transparent 100%);
  }
  .hero-sub { font-size: 15px; }
  .hero-actions .btn { flex: 1; min-width: 140px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 18px; margin-top: 34px; }
  .stat b { font-size: 26px; }
  .float-card { display: none; }

  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .values { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; gap: 26px; }
  .step::after { display: none; }
  .step { text-align: left; display: grid; grid-template-columns: 56px 1fr; gap: 16px; align-items: start; }
  .step-dot { margin: 0; }
  .step h4, .step p { grid-column: 2; }
  .step-dot { grid-row: 1 / span 2; }

  .pagehead { padding: 44px 0 48px; }
  .pagehead h1 { font-size: 26px; }

  .news-item { grid-template-columns: 66px 1fr; gap: 14px; }
  .news-date b { font-size: 19px; }
  .news-card { grid-template-columns: 1fr; gap: 14px; }
  .news-card-visual { height: 130px; }

  .cta { padding: 52px 0; }
  .cta h2 { font-size: 24px; }
  .form-card { padding: 24px 20px; }

  .footer { padding-top: 46px; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-bottom { justify-content: center; text-align: center; }

  .prod-block { padding: 36px 0; gap: 28px; }
  .prod-text h2 { font-size: 23px; }

  .floatbar { right: 12px; bottom: 14px; }
  .fbtn { width: 44px; height: 44px; }
  .fbtn svg { width: 18px; height: 18px; }

  /* 手机端用底部转化条代替浮窗，给页脚让出空间 */
  .mobilebar { display: flex; }
  .floatbar .fbtn--main,
  .floatbar .fbtn:not(.fbtn--top) { display: none; }   /* 只保留回到顶部 */
  .floatbar .fbtn--top { bottom: 76px; }               /* 避开底部条 */
  .footer { padding-bottom: 80px; }                    /* 避免遮最后一行 */

  .btn { height: 46px; padding: 0 20px; }
}

@media (max-width: 560px) {
  body { font-size: 15px; }
  .topbar-time { display: none; }   /* 超窄屏只保留电话，保证不换行溢出 */
  .hero h1 { font-size: 26px; }
  .hero-tags { gap: 8px; }
  .tag { font-size: 12px; padding: 0 11px; }
  .hero-stats { gap: 14px; }
  .card { padding: 24px 20px; }
  .sec-head h2 { font-size: 23px; }
  .values, .honor-grid { grid-template-columns: 1fr; }
  .kpi-row { grid-template-columns: 1fr; }
  .contact-item { padding: 18px; }
  .case-results { gap: 6px; }
  .case-results b { font-size: 17px; }

  /* 移动端地址实景图：稍矮一点，给底部让出空间 */
  .map-box { height: 200px; margin-top: 14px; }
  .map-caption { padding: 11px 14px; gap: 10px; margin-top: 12px; }
  .map-caption > i { width: 32px; height: 32px; }
  .map-caption > i svg { width: 16px; height: 16px; }
  .map-caption b { font-size: 14px; }
  .map-caption span { font-size: 12px; line-height: 1.6; }
}

/* ---------- 27. 打印 ---------- */
@media print {
  .header, .topbar, .floatbar, .drawer, .cta, .footer { display: none !important; }
  body { color: #000; }
}