/* =========================================================
   智启云创（天津）信息技术有限公司  ·  SYNAENG
   官网主样式表  ·  v2（UI/UX 优化 + Lucide 图标系统）
   ---------------------------------------------------------
   本次优化（对应 UI 评审报告）：
   1. 色彩语义分离：--accent 仅作装饰，--accent-text 承担可读文本
      （原 --blue-500 一色两用，致 4.05:1 不达 WCAG AA）
   2. 修复 .split.rev 图文交替失效（order: 2 → -1，原值为 no-op）
   3. 修复 .hero-scroll 被相邻区块负边距遮挡
   4. 修复移动端抽屉切断 Logo
   5. 补齐 :focus-visible / skip-link / 触达区 / noscript 兜底
   6. 新增 Lucide 图标系统与三处品牌化组件
      （业务矩阵 / 交付方法论 / 位置示意，替代风格冲突的位图素材）
   7. 图片 WebP 化 + 懒加载：首屏传输由 5.4MB 降至 ~54KB
   ========================================================= */

/* =========================================================
   1. Design tokens
   ========================================================= */
:root {
  /* —— 品牌深蓝 —— */
  --navy-900: #061733;
  --navy-800: #0a2450;
  --navy-700: #103a76;

  /* —— 品牌蓝（装饰层）—— */
  --blue-600: #1a5fd0;
  --blue-500: #2a7bf0;
  --blue-400: #4f97f7;
  --cyan-400: #35b6f0;

  /* —— 语义别名：区分「装饰色」与「可读文本色」——
     装饰色可自由用于渐变、描边、发光、边框；
     可读文本色必须满足 WCAG AA（正文 ≥4.5:1，大字 ≥3:1）。
     --accent    #2a7bf0 on #fff = 4.05:1  ✗ 不得用于正文
     --accent-text #1a5fd0 on #fff = 5.85:1 ✓
     --accent-ink  #164fae on #fff = 7.10:1 ✓ 小字号/长段落  */
  --accent: var(--blue-500);
  --accent-text: var(--blue-600);
  --accent-ink: #164fae;

  /* —— 中性 —— */
  --ink: #16202f;
  --ink-soft: #35455e;
  --muted: #5c6b84;
  --line: #e4ecf7;
  --line-strong: #d2e0f2;
  --bg-soft: #f4f8fd;
  --bg-card: #ffffff;

  /* —— 深色区（页脚/CTA/矩阵）上的文字—— */
  --on-navy: #ffffff;
  --on-navy-dim: rgba(226, 240, 255, 0.82);
  --on-navy-mute: rgba(206, 224, 246, 0.78);

  --shadow-sm: 0 2px 10px rgba(11, 42, 87, 0.06);
  --shadow-md: 0 14px 34px rgba(11, 42, 87, 0.1);
  --shadow-lg: 0 26px 60px rgba(11, 42, 87, 0.16);

  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;

  --header-h: 76px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);

  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei",
    "Hiragino Sans GB", "Source Han Sans SC", "Noto Sans SC", "Helvetica Neue",
    Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  font-family: var(--font);
  color: var(--ink);
  background: #fff;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

::selection { background: var(--blue-600); color: #fff; }

/* =========================================================
   2. Accessibility
   ========================================================= */

/* 键盘焦点环 —— 原站 0 条 :focus 规则，键盘用户完全不可见 */
:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}
.site-header:not(.solid) :focus-visible,
.hero :focus-visible,
.page-banner :focus-visible,
.cta-band :focus-visible,
.site-footer :focus-visible { outline-color: var(--accent-text); }
.nav a:focus-visible { outline-offset: -1px; }

/* 跳转至主内容 —— 原站无 skip-link */
.skip-link {
  position: absolute;
  left: 16px;
  top: -80px;
  z-index: 1200;
  padding: 12px 22px;
  border-radius: 0 0 12px 12px;
  background: #fff;
  color: var(--navy-800);
  font-size: 15px;
  font-weight: 600;
  box-shadow: var(--shadow-md);
  transition: top 0.22s var(--ease);
}
.skip-link:focus { top: 0; }

/* 无 JS 兜底：避免脚本未执行时 .reveal 内容永久不可见 */
.no-js .reveal,
.no-js .hero-bg,
.no-js .pb-bg { opacity: 1 !important; transform: none !important; animation: none !important; }

/* 屏幕阅读器专用文本 */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap;
}

/* =========================================================
   3. Icon system (Lucide)
   ========================================================= */
.icon-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }

.i {
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
  display: block;
  pointer-events: none;
}
.i-sm { width: 16px; height: 16px; }
.i-xs { width: 14px; height: 14px; }
.i-lg { width: 26px; height: 26px; }
.i-xl { width: 30px; height: 30px; }

/* =========================================================
   4. Layout
   ========================================================= */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.container-wide { max-width: 1360px; }

.section { padding: 96px 0; }
.section-sm { padding: 64px 0; }
.section-soft { background: var(--bg-soft); }
.section-navy {
  background: linear-gradient(150deg, var(--navy-900) 0%, var(--navy-700) 100%);
  color: #fff;
}

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 12px; }
.mt-3 { margin-top: 18px; }
.mt-4 { margin-top: 26px; }
.mt-5 { margin-top: 36px; }

/* =========================================================
   5. Section heading
   ========================================================= */
.sec-head { max-width: 780px; margin: 0 auto 56px; text-align: center; }
.sec-head.left { margin-left: 0; text-align: left; }

.eyebrow {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.22em;
  font-weight: 600;
  color: var(--accent-text);
  text-transform: uppercase;
  margin-bottom: 14px;
}
.sec-head.center .eyebrow { margin-left: auto; margin-right: auto; }

.sec-title {
  font-size: clamp(26px, 3.4vw, 40px);
  line-height: 1.28;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--ink);
  text-wrap: balance;
}
.section-navy .sec-title { color: #fff; }

.sec-title .hl { color: var(--accent-text); }
.section-navy .sec-title .hl { color: var(--cyan-400); }

.sec-sub {
  margin-top: 18px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.9;
}
.section-navy .sec-sub { color: var(--on-navy-dim); }

.rule {
  width: 54px; height: 4px; border-radius: 4px;
  background: linear-gradient(90deg, var(--blue-600), var(--cyan-400));
  margin: 20px auto 0;
}
.sec-head.left .rule,
.split-body .rule { margin-left: 0; }

/* =========================================================
   6. Header
   ========================================================= */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--header-h);
  z-index: 900;
  display: flex;
  align-items: center;
  transition: background 0.35s var(--ease), box-shadow 0.35s var(--ease),
    height 0.35s var(--ease), border-color 0.35s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
}
.brand img { height: 30px; width: auto; }
/* 亮色 banner 上导航栏为透明态，logo 与文字用本色（深墨），
   滚动到浅色 solid 态也保持深色，两端一致。 */
.site-header:not(.solid) .brand img { filter: none; }
.footer-brand img { filter: brightness(0) invert(1); }

/* 抽屉展开时隐藏 Logo —— 原逻辑下 245px 宽的白色 Logo 被抽屉拦腰切断只剩「SY」 */
body.nav-open .brand {
  opacity: 0;
  transform: translateX(-10px);
  pointer-events: none;
}

.nav { display: flex; align-items: center; gap: 6px; }
.nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-soft);
  border-radius: 8px;
  transition: color 0.25s var(--ease), background 0.25s var(--ease);
}
.nav a::after {
  content: "";
  position: absolute;
  left: 16px; right: 16px; bottom: 7px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.3s var(--ease);
  opacity: 0.9;
}
.nav a:hover::after, .nav a.active::after { transform: scaleX(1); }
.nav a:hover, .nav a.active { color: var(--accent-text); }

.nav-cta {
  margin-left: 10px;
  padding: 12px 22px !important;
  border-radius: 999px !important;
  background: linear-gradient(120deg, var(--blue-600), #1a72c8);
  color: #fff !important;
  font-weight: 600;
  box-shadow: 0 10px 24px rgba(26, 95, 208, 0.34);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 16px 32px rgba(26, 95, 208, 0.42); }
.nav-cta::after { display: none; }

.site-header.solid {
  height: 68px;
  background: rgba(255, 255, 255, 0.92);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  backdrop-filter: saturate(180%) blur(16px);
  box-shadow: 0 6px 24px rgba(11, 42, 87, 0.08);
  border-bottom-color: var(--line);
}
.site-header.solid .nav a { color: var(--ink-soft); }
.site-header.solid .nav a:hover,
.site-header.solid .nav a.active { color: var(--accent-text); }

/* nav toggle */
.nav-toggle {
  display: none;
  position: relative;
  z-index: 2;
  width: 46px; height: 46px;
  border-radius: 10px;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  position: absolute;
  left: 12px;
  width: 22px; height: 2px;
  border-radius: 2px;
  background: var(--navy-800);
  transition: transform 0.3s var(--ease), opacity 0.2s var(--ease),
    background 0.3s var(--ease);
}
.nav-toggle span { top: 22px; }
.nav-toggle span::before { content: ""; left: 0; top: -7px; }
.nav-toggle span::after { content: ""; left: 0; top: 7px; }
.site-header.solid .nav-toggle span,
.site-header.solid .nav-toggle span::before,
.site-header.solid .nav-toggle span::after { background: var(--navy-800); }
body.nav-open .nav-toggle span { background: transparent; }
body.nav-open .nav-toggle span::before { transform: translateY(7px) rotate(45deg); background: #fff; }
body.nav-open .nav-toggle span::after { transform: translateY(-7px) rotate(-45deg); background: #fff; }

/* =========================================================
   7. Hero
   ========================================================= */
/* —— 亮色 banner 方案：首页 hero 与内页 .page-banner 共用同一套浅色配方 ——
   底色改为浅蓝→白渐变；底图滤镜由压暗改为轻微提亮+降饱和；
   遮罩由深蓝改为白色水洗（仅右侧保留品牌图形隐约可见）；
   网格由白色细线改为淡蓝细线；文字由白改为深墨色。 */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  color: var(--ink);
  overflow: hidden;
  background: linear-gradient(160deg, #e9f1fd 0%, #f6faff 55%, #ffffff 100%);
}
/* —— 品牌底图 + 遮罩配方：首页 hero 与内页 .page-banner 共用 ——
   两处只允许「构图位置」与「缓移方向/时长」不同，其余参数必须同源，
   否则内页会像另一个站点（见 17. 内页横幅）。 */
.hero-bg,
.pb-bg {
  position: absolute;
  inset: 0;
  background-image: image-set(
    url("../images/2222.webp") type("image/webp"),
    url("../images/2222.jpg") type("image/jpeg")
  );
  background-image: -webkit-image-set(
    url("../images/2222.webp") type("image/webp"),
    url("../images/2222.jpg") type("image/jpeg")
  );
  background-size: cover;
  background-position: center;
  filter: blur(3px) brightness(1.05) saturate(0.92) contrast(0.98);
  transform: scale(1.06);
}
.hero-bg { animation: heroPan 24s var(--ease) infinite alternate; }
@keyframes heroPan {
  from { transform: scale(1.06) translate3d(0, 0, 0); }
  to { transform: scale(1.14) translate3d(-2%, -1.5%, 0); }
}
.hero::before,
.page-banner::before {
  content: "";
  position: absolute; inset: 0;
  z-index: 1;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92) 0%, rgba(255, 255, 255, 0.32) 22%, rgba(255, 255, 255, 0) 46%),
    radial-gradient(132% 110% at 18% 50%, rgba(255, 255, 255, 0.96) 0%, rgba(255, 255, 255, 0.74) 44%, rgba(255, 255, 255, 0.42) 100%),
    linear-gradient(102deg, rgba(255, 255, 255, 0.9) 0%, rgba(246, 250, 255, 0.58) 50%, rgba(246, 250, 255, 0.28) 100%);
}
.hero::after,
.page-banner::after {
  content: "";
  position: absolute; inset: 0;
  z-index: 1;
  background-image:
    linear-gradient(rgba(26, 95, 208, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26, 95, 208, 0.06) 1px, transparent 1px);
  background-size: 62px 62px;
  mask-image: radial-gradient(circle at 70% 40%, #000 0%, transparent 72%);
  -webkit-mask-image: radial-gradient(circle at 70% 40%, #000 0%, transparent 72%);
}
.hero .container {
  position: relative;
  z-index: 2;
  padding-top: var(--header-h);
  padding-bottom: 40px;
}
.hero-inner { max-width: 780px; }

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 20px;
  border-radius: 999px;
  border: 1px solid rgba(26, 95, 208, 0.32);
  background: rgba(255, 255, 255, 0.66);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--accent-text);
  margin-bottom: 28px;
}
.hero-tag .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--cyan-400);
  box-shadow: 0 0 0 4px rgba(53, 182, 240, 0.22);
  animation: pulse 2.4s infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(53, 182, 240, 0.22); }
  50% { box-shadow: 0 0 0 9px rgba(53, 182, 240, 0.05); }
}

.hero h1 {
  font-size: clamp(32px, 5vw, 60px);
  line-height: 1.22;
  font-weight: 800;
  letter-spacing: 1px;
  text-shadow: 0 2px 18px rgba(255, 255, 255, 0.5);
}
.hero h1 .grad {
  background: linear-gradient(100deg, #1a5fd0, #2a7bf0 45%, #164fae);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p.lead {
  margin-top: 26px;
  max-width: 620px;
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.95;
  color: var(--ink-soft);
  text-shadow: 0 1px 10px rgba(255, 255, 255, 0.55);
}
.hero-actions { margin-top: 42px; display: flex; flex-wrap: wrap; gap: 16px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 14px 32px;
  border-radius: 999px;
  font-size: 15.5px;
  font-weight: 600;
  letter-spacing: 0.3px;
  transition: transform 0.28s var(--ease), box-shadow 0.28s var(--ease),
    background 0.28s var(--ease), color 0.28s var(--ease);
}
.btn .i { transition: transform 0.3s var(--ease); }
.btn-primary:hover .i { transform: translateX(4px); }

/* 渐变两端均 ≥4.9:1，保证白字达标（原 #2a7bf0→#35b6f0 仅 4.04:1） */
.btn-primary {
  background: linear-gradient(120deg, var(--blue-600), #1a72c8);
  color: #fff;
  box-shadow: 0 16px 36px rgba(26, 95, 208, 0.4);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 22px 44px rgba(26, 95, 208, 0.5); }

.btn-ghost {
  border: 1.5px solid rgba(26, 95, 208, 0.4);
  color: var(--accent-text);
  background: rgba(255, 255, 255, 0.5);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.78); transform: translateY(-3px); }

.btn-outline {
  border: 1.5px solid var(--line-strong);
  color: var(--accent-text);
  background: #fff;
}
.btn-outline:hover { border-color: var(--accent); transform: translateY(-3px); box-shadow: var(--shadow-sm); }

.btn-dark { background: var(--navy-800); color: #fff; box-shadow: var(--shadow-md); }
.btn-dark:hover { transform: translateY(-3px); background: var(--navy-700); }

/* 滚动提示 —— 原先正下方有一块上浮的数据条（负边距覆盖 hero 底部），
   为避免被它压住才抬到 100px。该数据条已整体移除，此处回调至 40px 的常规贴底位置。 */
.hero-scroll {
  position: absolute;
  left: 50%;
  bottom: 40px;
  transform: translateX(-50%);
  z-index: 3;
  width: 26px; height: 44px;
  border: 2px solid rgba(26, 95, 208, 0.4);
  border-radius: 14px;
  transition: border-color 0.3s var(--ease);
}
.hero-scroll:hover { border-color: var(--accent-text); }
.hero-scroll::after {
  content: "";
  position: absolute;
  left: 50%; top: 9px;
  width: 4px; height: 8px;
  border-radius: 2px;
  background: var(--accent-text);
  transform: translateX(-50%);
  animation: scrollDot 1.8s var(--ease) infinite;
}
@keyframes scrollDot {
  0% { opacity: 0; transform: translate(-50%, -4px); }
  40% { opacity: 1; }
  100% { opacity: 0; transform: translate(-50%, 14px); }
}

/* =========================================================
   8. （原数据条）
   ---------------------------------------------------------
   该区块已按要求整体移除：HTML 结构、本节全部样式、
   以及 main.js 中的数字滚动动画均已同步清理，不留死代码。
   编号保留，避免后续章节序号变动。
   ========================================================= */

/* =========================================================
   9. Split（图文两栏）
   ========================================================= */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
/* 修复：原 `order: 2` 与 DOM 顺序一致，等于没有生效，
   产品页 6 处 + 文化区全部退化为「文左图右」。
   改为 order: -1 才能真正让图片移到左侧。 */
.split.rev .split-media { order: -1; }
.split.rev .split-body { order: 1; }

.split-media { position: relative; }
.split-media img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  width: 100%;
  height: auto;
  object-fit: cover;
}
.split-media.flush img { border-radius: var(--radius); aspect-ratio: 16 / 10; }

.split-body .sec-title { margin-bottom: 0; }
.split-body p { color: var(--muted); font-size: 15.8px; line-height: 2; }
.split-body p + p { margin-top: 16px; }

.checklist { margin-top: 26px; display: grid; gap: 14px; }
.checklist li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 15.4px;
  color: var(--ink-soft);
}
.checklist .ic {
  flex: 0 0 24px;
  width: 24px; height: 24px;
  border-radius: 50%;
  background: linear-gradient(120deg, var(--blue-600), #1a72c8);
  display: grid; place-items: center;
  margin-top: 3px;
  color: #fff;
}
.checklist .ic .i { width: 13px; height: 13px; }

/* =========================================================
   10. 组件：业务矩阵（替代原 1.png 位图信息图）
   ---------------------------------------------------------
   原图把六个模块名烧进位图，移动端缩至 342px 后图内文字约 7px 不可读，
   且彩虹配色与品牌深蓝体系冲突。改为真实 DOM 组件：
   可缩放、可选中、可被读屏识别，并复用 Lucide 图标。
   ========================================================= */
.matrix {
  position: relative;
  border-radius: var(--radius-lg);
  padding: 30px 28px 32px;
  background: linear-gradient(160deg, var(--navy-800) 0%, #0d2f63 52%, #124a97 100%);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  color: #fff;
}
.matrix::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(circle at 78% 12%, #000 0%, transparent 76%);
  -webkit-mask-image: radial-gradient(circle at 78% 12%, #000 0%, transparent 76%);
}
.matrix::after {
  content: "";
  position: absolute;
  right: -70px; top: -70px;
  width: 300px; height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(53, 182, 240, 0.32), transparent 68%);
}
.matrix > * { position: relative; z-index: 2; }

.mx-head {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-bottom: 22px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}
.mx-badge {
  flex: 0 0 46px;
  width: 46px; height: 46px;
  border-radius: 13px;
  display: grid; place-items: center;
  background: rgba(53, 182, 240, 0.18);
  border: 1px solid rgba(53, 182, 240, 0.42);
  color: #8fdcff;
}
/* 内容区 44px（46 减上下各 1px 边框）。图标取 22px 使 (44-22)/2 = 11px 整数，
   避免 23px 时落在 10.5px 半像素上导致描边发虚。 */
.mx-badge .i { width: 22px; height: 22px; }
.mx-head strong {
  display: block;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.4px;
  color: #fff;
}
/* 仅作用于标题块内的副标题 <span>。
   注意：不能写成 `.mx-head span` —— .mx-badge 自身也是 .mx-head 的直接子 <span>，
   特指度 (0,1,1) 会压过 .mx-badge 的 (0,1,0)，把 display:grid 覆盖成 block，
   导致 place-items:center 失效、图标贴顶。故用 `> div > span` 限定在文字块内。 */
.mx-head > div > span {
  display: block;
  margin-top: 3px;
  font-size: 12.8px;
  letter-spacing: 0.06em;
  color: rgba(200, 224, 250, 0.86);
}

.mx-grid {
  margin-top: 22px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.mx-item {
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: 16px 14px;
  border-radius: 13px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.12);
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease),
    transform 0.3s var(--ease);
}
.mx-item:hover {
  background: rgba(53, 182, 240, 0.16);
  border-color: rgba(53, 182, 240, 0.5);
  transform: translateY(-3px);
}
.mx-item .i { width: 22px; height: 22px; color: #6fcdf5; }
.mx-item span {
  font-size: 13.4px;
  font-weight: 600;
  line-height: 1.45;
  color: rgba(238, 246, 255, 0.96);
  letter-spacing: 0.2px;
}
.mx-note {
  margin-top: 20px;
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 12.8px;
  color: rgba(196, 220, 248, 0.82);
}
.mx-note .i { width: 15px; height: 15px; color: var(--cyan-400); }

/* =========================================================
   11. 组件：交付方法论（替代原 2.png 欧美叠手实拍）
   ========================================================= */
.flow {
  position: relative;
  display: grid;
  gap: 8px;
}
.fl-step {
  position: relative;
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 18px;
  padding: 20px 22px 20px 0;
}
/* 流程连接线 */
.fl-step:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 25px;
  top: 62px;
  bottom: -8px;
  width: 2px;
  background: linear-gradient(180deg, var(--line-strong), rgba(210, 224, 242, 0.25));
}
.fl-ic {
  position: relative;
  z-index: 2;
  width: 52px; height: 52px;
  border-radius: 15px;
  display: grid; place-items: center;
  background: linear-gradient(140deg, rgba(26, 95, 208, 0.14), rgba(53, 182, 240, 0.14));
  border: 1px solid rgba(42, 123, 240, 0.24);
  color: var(--accent-text);
}
.fl-ic .i { width: 24px; height: 24px; }
.fl-tx b {
  display: block;
  font-size: 16.5px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.3px;
}
.fl-tx b em {
  font-style: normal;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--accent-text);
  margin-right: 9px;
}
.fl-tx p {
  margin-top: 7px;
  font-size: 14.6px;
  line-height: 1.85;
  color: var(--muted);
}
.fl-step:hover .fl-ic {
  border-color: rgba(42, 123, 240, 0.5);
  background: linear-gradient(140deg, rgba(26, 95, 208, 0.2), rgba(53, 182, 240, 0.2));
}

/* =========================================================
   12. 组件：价值观卡片（about 页）
   ========================================================= */
.values { display: grid; gap: 14px; }
.val-item {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 18px;
  align-items: start;
  padding: 22px 24px;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--line);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease),
    border-color 0.3s var(--ease);
}
.val-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--line-strong);
}
.val-ic {
  width: 48px; height: 48px;
  border-radius: 14px;
  display: grid; place-items: center;
  background: linear-gradient(140deg, rgba(26, 95, 208, 0.12), rgba(53, 182, 240, 0.12));
  border: 1px solid rgba(42, 123, 240, 0.2);
  color: var(--accent-text);
}
.val-ic .i { width: 23px; height: 23px; }
.val-item h3 { font-size: 16.5px; font-weight: 700; }
.val-item p { margin-top: 6px; font-size: 14.6px; line-height: 1.85; color: var(--muted); }

/* =========================================================
   13. 产品卡片
   ========================================================= */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

.pcard {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease),
    border-color 0.4s var(--ease);
}
.pcard:hover { transform: translateY(-8px); box-shadow: var(--shadow-md); border-color: var(--line-strong); }

.pcard-media { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: var(--navy-800); }
.pcard-media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.7s var(--ease);
}
.pcard:hover .pcard-media img { transform: scale(1.07); }
.pcard-media::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(6, 23, 51, 0.12) 0%, rgba(6, 23, 51, 0.08) 38%, rgba(6, 23, 51, 0.78) 100%);
}
.pcard-index {
  position: absolute;
  left: 20px; bottom: 15px;
  z-index: 2;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: #fff;
  text-shadow: 0 1px 8px rgba(4, 15, 34, 0.6);
}
.pcard-tag {
  position: absolute;
  left: 16px; top: 16px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 13px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  color: #fff;
  background: rgba(18, 62, 130, 0.86);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.16);
}
.pcard-tag .i { width: 13px; height: 13px; color: #8fdcff; }

.pcard-body { padding: 26px 26px 30px; flex: 1; display: flex; flex-direction: column; }
.pcard-body h3 { font-size: 19.5px; font-weight: 700; color: var(--ink); letter-spacing: 0.3px; }
.pcard-body p { margin-top: 12px; font-size: 14.8px; line-height: 1.92; color: var(--muted); flex: 1; }
.pcard-more {
  margin-top: 18px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-text);
}
.pcard-more .i { width: 15px; height: 15px; transition: transform 0.3s var(--ease); }
.pcard:hover .pcard-more .i { transform: translateX(4px); }
/* 整卡可点：链接覆盖层 */
.pcard-link { position: absolute; inset: 0; z-index: 3; }
.pcard { position: relative; }

/* =========================================================
   14. 核心优势卡片
   ========================================================= */
.acard {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px 28px;
  height: 100%;
  position: relative;
  overflow: hidden;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.acard::before {
  content: "";
  position: absolute;
  left: 0; top: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue-600), var(--cyan-400));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.45s var(--ease);
}
.acard:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.acard:hover::before { transform: scaleX(1); }

.acard .aic {
  width: 54px; height: 54px;
  border-radius: 14px;
  display: grid; place-items: center;
  background: linear-gradient(140deg, rgba(26, 95, 208, 0.12), rgba(53, 182, 240, 0.12));
  border: 1px solid rgba(42, 123, 240, 0.2);
  margin-bottom: 22px;
  color: var(--accent-text);
}
.acard .aic .i { width: 26px; height: 26px; }
.acard h3 { font-size: 18px; font-weight: 700; }
.acard p { margin-top: 12px; font-size: 14.6px; line-height: 1.9; color: var(--muted); }

/* =========================================================
   15. 合作伙伴
   ---------------------------------------------------------
   该模块（.clients / .client-pill）已按要求整块下线，
   样式一并移除，避免留下不可达的死规则。
   ========================================================= */

/* =========================================================
   16. CTA
   ========================================================= */
.cta-band {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  padding: 66px 60px;
  background: linear-gradient(120deg, var(--navy-800), var(--navy-700) 55%, #0f4f9c);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 44px;
  flex-wrap: wrap;
  box-shadow: var(--shadow-lg);
}
.cta-band::after {
  content: "";
  position: absolute;
  right: -80px; top: -80px;
  width: 380px; height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(53, 182, 240, 0.35), transparent 68%);
}
.cta-band > * { position: relative; z-index: 2; }
.cta-band h2 { font-size: clamp(22px, 2.6vw, 32px); font-weight: 700; line-height: 1.4; }
.cta-band p { margin-top: 12px; color: var(--on-navy-dim); font-size: 15.4px; }
.cta-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* =========================================================
   17. 内页横幅
   ---------------------------------------------------------
   底图 / 滤镜 / 遮罩 / 网格均与首页 .hero 同源（配方定义在第 7 节），
   此处只声明内页的差异化部分。
   内页横幅不设胶囊标签与滚动提示：这两者是首页 hero 的元素，
   内页放上去会与面包屑挤在一排、并让标题条显得嘈杂。
   ========================================================= */
.page-banner {
  position: relative;
  min-height: 380px;
  display: flex;
  align-items: flex-end;
  color: var(--ink);
  background: linear-gradient(160deg, #e9f1fd 0%, #f6faff 55%, #ffffff 100%);
  overflow: hidden;
}
/* 构图右移、略提亮：内页容器仅 380px 高，与首页共用同一浅色配方，
   仅构图位置与缓移动画不同，其余参数同源。 */
.page-banner .pb-bg {
  background-position: 62% 44%;
  filter: blur(3px) brightness(1.06) saturate(0.94) contrast(0.98);
  animation: bannerPan 34s var(--ease) infinite alternate;
}
@keyframes bannerPan {
  from { transform: scale(1.06) translate3d(0, 0, 0); }
  to { transform: scale(1.13) translate3d(1.6%, -1.2%, 0); }
}
.page-banner .container {
  position: relative;
  z-index: 2;
  padding-bottom: 62px;
  padding-top: 150px;
}
.page-banner h1 {
  font-size: clamp(30px, 4.2vw, 50px);
  font-weight: 800;
  letter-spacing: 1px;
  text-shadow: 0 2px 18px rgba(255, 255, 255, 0.5);
}
.page-banner .crumb {
  margin-top: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14.5px;
  color: var(--ink-soft);
  text-shadow: 0 1px 8px rgba(255, 255, 255, 0.5);
}
.page-banner .crumb a {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 2px;
  color: var(--muted);
  border-bottom: 1px solid transparent;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}
.page-banner .crumb a:hover { color: var(--accent-text); border-bottom-color: rgba(26, 95, 208, 0.4); }
.page-banner .crumb .sep { opacity: 0.6; display: inline-flex; }
.page-banner .crumb .sep .i { width: 13px; height: 13px; }

/* =========================================================
   17b. 模块快速索引（产品页）
   ---------------------------------------------------------
   产品页为长页面，文档很长却没有页内导航。
   ========================================================= */
.modnav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  padding: 20px;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}
.modnav a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink-soft);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease),
    border-color 0.25s var(--ease), color 0.25s var(--ease), background 0.25s var(--ease);
}
.modnav a .i { width: 17px; height: 17px; color: var(--accent-text); }
.modnav a:hover {
  transform: translateY(-2px);
  background: #fff;
  border-color: rgba(42, 123, 240, 0.45);
  color: var(--accent-text);
  box-shadow: var(--shadow-sm);
}

/* =========================================================
   18. 产品详情
   ========================================================= */
.pdetail { padding: 76px 0; border-bottom: 1px solid var(--line); }
.pdetail:last-of-type { border-bottom: 0; }
.pdetail .idx {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: var(--accent-text);
}
.pdetail .idx::after {
  content: "";
  width: 46px; height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--blue-600), var(--cyan-400));
}
.pdetail h2 { margin-top: 12px; font-size: clamp(22px, 2.8vw, 32px); font-weight: 700; }
.pdetail .pos {
  margin-top: 10px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.3px;
  color: var(--accent-text);
}
.pdetail .pos .i { width: 16px; height: 16px; }
.pdetail .desc { margin-top: 18px; color: var(--muted); font-size: 15.8px; line-height: 2; }
.pdetail .features { margin-top: 26px; display: grid; gap: 12px; }
.pdetail .features li {
  display: flex; gap: 12px; align-items: flex-start;
  font-size: 15px; color: var(--ink-soft);
}
.pdetail .features .tick {
  flex: 0 0 22px;
  width: 22px; height: 22px;
  border-radius: 7px;
  background: rgba(26, 95, 208, 0.1);
  display: grid; place-items: center;
  margin-top: 3px;
  color: var(--accent-text);
}
.pdetail .features .tick .i { width: 13px; height: 13px; }

/* =========================================================
   19. 联系我们
   ========================================================= */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 48px;
  align-items: stretch;
}
.info-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 38px 34px;
  box-shadow: var(--shadow-sm);
  height: 100%;
}
.info-card h3 { font-size: 20px; font-weight: 700; letter-spacing: 0.5px; }
.info-card .sub { margin-top: 8px; color: var(--muted); font-size: 14.5px; }
.info-list { margin-top: 30px; display: grid; gap: 24px; }
.info-item { display: flex; gap: 16px; }
.info-item .ic {
  flex: 0 0 46px;
  width: 46px; height: 46px;
  border-radius: 12px;
  background: linear-gradient(140deg, rgba(26, 95, 208, 0.12), rgba(53, 182, 240, 0.12));
  border: 1px solid rgba(42, 123, 240, 0.2);
  display: grid; place-items: center;
  color: var(--accent-text);
}
.info-item .ic .i { width: 22px; height: 22px; }
.info-item .k { font-size: 13px; letter-spacing: 0.14em; color: var(--muted); text-transform: uppercase; }
.info-item .v { margin-top: 3px; font-size: 15.6px; color: var(--ink); font-weight: 500; line-height: 1.75; }
.info-item .v a {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  border-bottom: 1px solid var(--line-strong);
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}
.info-item .v a:hover { color: var(--accent-text); border-bottom-color: var(--accent); }

/* 位置示意 —— 自绘，替代原商业地图位图截图
   （地图位图既是全页色彩最冲突元素，公开使用亦需标注审图号） */
.map-card {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  background: var(--navy-900);
}
.locate {
  position: relative;
  flex: 1;
  display: flex;
  align-items: center;
  background: linear-gradient(160deg, #08203f 0%, #0d2f63 58%, #124a97 100%);
}
.locate svg.locate-map { width: 100%; height: auto; display: block; }
.locate .pulse {
  transform-box: fill-box;
  transform-origin: center;
  animation: locatePulse 2.6s var(--ease) infinite;
}
@keyframes locatePulse {
  0% { transform: scale(0.6); opacity: 0.65; }
  100% { transform: scale(2.1); opacity: 0; }
}
.locate-badge {
  position: absolute;
  left: 18px; top: 18px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 14px;
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: #cfe8ff;
  background: rgba(10, 36, 80, 0.78);
  border: 1px solid rgba(120, 190, 255, 0.32);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
.locate-badge .i { width: 14px; height: 14px; color: var(--cyan-400); }

.map-foot {
  flex-shrink: 0;
  padding: 18px 24px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14.5px;
  color: var(--muted);
  background: #fff;
}
.map-foot .i { width: 17px; height: 17px; color: var(--accent-text); margin-top: 4px; }
.map-foot b { color: var(--ink); font-weight: 600; }
.map-foot .note { display: block; margin-top: 4px; font-size: 12.6px; color: #8794a8; }

/* =========================================================
   20. Footer
   ========================================================= */
.site-footer {
  background: var(--navy-900);
  color: var(--on-navy-mute);
  padding: 76px 0 0;
  font-size: 14.6px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 52px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-brand img { height: 30px; width: auto; margin-bottom: 22px; }
.footer-brand p { line-height: 1.95; max-width: 340px; }
.footer-col h4 {
  color: #fff; font-size: 15.5px; font-weight: 600;
  letter-spacing: 0.6px; margin-bottom: 14px;
}
.footer-col ul { display: grid; gap: 2px; }
/* 触达区修复：原为 17px 高，低于 WCAG 2.2 的 24×24 底线 */
.footer-col a {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 5px 0;
  transition: color 0.25s var(--ease), transform 0.25s var(--ease);
}
.footer-col a:hover { color: #fff; transform: translateX(3px); }
.footer-col ul a::before {
  content: "";
  width: 0;
  height: 1px;
  background: var(--cyan-400);
  margin-right: 0;
  transition: width 0.25s var(--ease), margin-right 0.25s var(--ease);
}
.footer-col ul a:hover::before { width: 12px; margin-right: 7px; }

.footer-col .fc-item { display: flex; gap: 10px; line-height: 1.8; }
.footer-col .fc-item .i { width: 16px; height: 16px; color: var(--cyan-400); margin-top: 6px; }
.footer-col .fc-item a {
  min-height: 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}
.footer-col .fc-item a:hover { border-bottom-color: #fff; }

.footer-bottom {
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13.6px;
  color: rgba(180, 202, 228, 0.72);
}
.footer-bottom a {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  min-height: 26px;
  padding: 4px 0;
  color: var(--on-navy-mute);
}
.footer-bottom a .i { width: 13px; height: 13px; }
.footer-bottom a:hover { color: #fff; }

/* =========================================================
   21. 动效
   ========================================================= */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: 0.08s; }
.reveal.d2 { transition-delay: 0.16s; }
.reveal.d3 { transition-delay: 0.24s; }
.reveal.d4 { transition-delay: 0.32s; }
.reveal.d5 { transition-delay: 0.4s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero-bg, .pb-bg { animation: none; }
  .locate .pulse { display: none; }
  html { scroll-behavior: auto; }
}

/* =========================================================
   22. 响应式
   ========================================================= */
@media (max-width: 1080px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 40px; }
}

@media (max-width: 980px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .split { grid-template-columns: 1fr; gap: 40px; }
  .split.rev .split-media { order: 0; }
  .split.rev .split-body { order: 0; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .nav {
    position: fixed;
    inset: 0 0 0 auto;
    width: min(80vw, 340px);
    background: linear-gradient(160deg, var(--navy-900), var(--navy-700));
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    padding: calc(var(--header-h) + 28px) 26px 40px;
    gap: 4px;
    transform: translateX(102%);
    transition: transform 0.42s var(--ease);
    box-shadow: -20px 0 60px rgba(0, 0, 0, 0.35);
    overflow-y: auto;
    overscroll-behavior: contain;
  }
  body.nav-open .nav { transform: translateX(0); }
  .nav a {
    color: rgba(255, 255, 255, 0.92);
    padding: 15px 14px;
    min-height: 52px;
    border-radius: 10px;
    font-size: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }
  .nav a::after { display: none; }
  .nav-cta { margin: 20px 0 0; }
  .nav-scrim {
    position: fixed; inset: 0;
    background: rgba(6, 23, 51, 0.55);
    opacity: 0; visibility: hidden;
    transition: opacity 0.4s var(--ease), visibility 0.4s var(--ease);
    z-index: 850;
    -webkit-backdrop-filter: blur(2px);
    backdrop-filter: blur(2px);
  }
  body.nav-open .nav-scrim { opacity: 1; visibility: visible; }
  body.nav-open { overflow: hidden; }
  .hero-scroll { bottom: 32px; }
}

@media (max-width: 720px) {
  :root { --header-h: 64px; }
  .section { padding: 64px 0; }
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .cta-band { padding: 42px 28px; }
  .cta-band h2 br { display: none; }
  .sec-head { margin-bottom: 40px; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .hero { min-height: 92vh; }
  .hero-tag { font-size: 11.5px; letter-spacing: 0.06em; padding: 7px 14px; gap: 8px; }
  /* 内页横幅：窄屏收紧高度，避免占掉半个首屏 */
  .page-banner { min-height: 340px; }
  .page-banner .container { padding-top: 120px; padding-bottom: 52px; }
  .hero p.lead { font-size: 15px; line-height: 1.9; }
  .hero-actions { margin-top: 32px; }
  .hero-actions .btn { flex: 1 1 100%; }
  .btn { padding: 14px 26px; font-size: 14.5px; }
  .pdetail { padding: 52px 0; }
  .matrix { padding: 24px 20px 26px; }
  .mx-grid { grid-template-columns: repeat(2, 1fr); }
  .info-card { padding: 30px 24px; }
  /* 触达区在触屏上放宽到 44px */
  .footer-col a { min-height: 44px; padding: 6px 0; }
  .footer-col ul { gap: 0; }
  .info-item .v a { min-height: 44px; }
}

@media (max-width: 400px) {
  .container { padding: 0 16px; }
  .mx-grid { grid-template-columns: 1fr 1fr; gap: 9px; }
  .mx-item { padding: 13px 11px; }
  .mx-item span { font-size: 12.6px; }
  .fl-step { grid-template-columns: 44px 1fr; gap: 14px; padding: 16px 0; }
  .fl-ic { width: 44px; height: 44px; border-radius: 13px; }
  .fl-step:not(:last-child)::after { left: 21px; top: 54px; }
  .val-item { padding: 18px 18px; grid-template-columns: 42px 1fr; gap: 14px; }
  .val-ic { width: 42px; height: 42px; }
  .info-card { padding: 24px 20px; }
  .cta-band { padding: 36px 22px; }
  .page-banner { min-height: 320px; }
  .page-banner .container { padding-top: 110px; padding-bottom: 46px; }
  .hero h1 { letter-spacing: 0; }
}