@charset "UTF-8";
/* ==========================================================================
   世纪网安 — 站点样式 v2（无第三方依赖 / 替代 layui.css）
   1. 设计令牌   2. 基础排版   3. 栅格兼容层   4. 页头页脚
   5. 首页模块   6. 内页组件   7. 表单与按钮 8. 响应式
   ========================================================================== */

/* 1. 设计令牌 ------------------------------------------------------------- */
:root {
  --ink: #142e43;
  --ink-soft: #2a4a63;
  --muted: #4f6577;
  --accent: #00717a;          /* 白底 5.32:1 */
  --accent-dark: #005c63;
  --accent-soft: #e7f2f3;
  --line: #dbe5ea;
  --paper: #f4f8f9;
  --white: #fff;
  --danger: #b3261e;
  --radius: 6px;
  --shadow: 0 14px 34px rgba(20, 46, 67, .09);
  --font: system-ui, -apple-system, "Segoe UI", "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", sans-serif;
}

/* 2. 基础排版 ------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
img, svg, video { max-width: 100%; height: auto; }
img { border: 0; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }
p { margin: 0 0 1em; }
ul, ol { margin: 0 0 1em; padding-left: 1.4em; }
h1, h2, h3, h4, h5, h6 { color: var(--ink); font-weight: 700; line-height: 1.35; margin: 0 0 .6em; }
h1 { font-size: clamp(26px, 3.4vw, 38px); }
h2 { font-size: clamp(22px, 2.4vw, 28px); }
h3 { font-size: 19px; }
h4 { font-size: 16px; }
table { border-collapse: collapse; width: 100%; }
th, td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; }
th { background: var(--paper); font-weight: 600; }
blockquote { margin: 1.2em 0; padding: 14px 20px; border-left: 4px solid var(--accent); background: var(--accent-soft); }
hr { border: 0; border-top: 1px solid var(--line); margin: 28px 0; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible, summary:focus-visible {
  outline: 3px solid #14858f;
  outline-offset: 3px;
}
.skip-link {
  position: absolute; left: 12px; top: -80px; z-index: 999;
  background: var(--white); color: var(--ink); padding: 12px 18px;
  border: 1px solid var(--accent); border-radius: var(--radius);
}
.skip-link:focus { top: 10px; }
.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* 3. 栅格兼容层（与旧 layui 类名保持一致，去掉 69KB 的 layui.css） ---------- */
.layui-container { width: min(1200px, 100% - 64px); margin-inline: auto; }
.layui-row { display: flow-root; }
.layui-row::after { content: ""; display: table; clear: both; }
[class*="layui-col-"] { float: left; min-height: 1px; }
.layui-col-xs1 { width: 8.3333%; } .layui-col-xs2 { width: 16.6666%; }
.layui-col-xs3 { width: 25%; } .layui-col-xs4 { width: 33.3333%; }
.layui-col-xs5 { width: 41.6666%; } .layui-col-xs6 { width: 50%; }
.layui-col-xs7 { width: 58.3333%; } .layui-col-xs8 { width: 66.6666%; }
.layui-col-xs9 { width: 75%; } .layui-col-xs10 { width: 83.3333%; }
.layui-col-xs11 { width: 91.6666%; } .layui-col-xs12 { width: 100%; }
@media (min-width: 768px) {
  .layui-col-sm1 { width: 8.3333%; } .layui-col-sm2 { width: 16.6666%; }
  .layui-col-sm3 { width: 25%; } .layui-col-sm4 { width: 33.3333%; }
  .layui-col-sm5 { width: 41.6666%; } .layui-col-sm6 { width: 50%; }
  .layui-col-sm7 { width: 58.3333%; } .layui-col-sm8 { width: 66.6666%; }
  .layui-col-sm9 { width: 75%; } .layui-col-sm10 { width: 83.3333%; }
  .layui-col-sm11 { width: 91.6666%; } .layui-col-sm12 { width: 100%; }
  .layui-hide-sm { display: none !important; }
}
@media (min-width: 992px) {
  .layui-col-md1 { width: 8.3333%; } .layui-col-md2 { width: 16.6666%; }
  .layui-col-md3 { width: 25%; } .layui-col-md4 { width: 33.3333%; }
  .layui-col-md5 { width: 41.6666%; } .layui-col-md6 { width: 50%; }
  .layui-col-md7 { width: 58.3333%; } .layui-col-md8 { width: 66.6666%; }
  .layui-col-md9 { width: 75%; } .layui-col-md10 { width: 83.3333%; }
  .layui-col-md11 { width: 91.6666%; } .layui-col-md12 { width: 100%; }
  .layui-hide-md { display: none !important; }
}
@media (min-width: 1200px) {
  .layui-col-lg1 { width: 8.3333%; } .layui-col-lg2 { width: 16.6666%; }
  .layui-col-lg3 { width: 25%; } .layui-col-lg4 { width: 33.3333%; }
  .layui-col-lg5 { width: 41.6666%; } .layui-col-lg6 { width: 50%; }
  .layui-col-lg7 { width: 58.3333%; } .layui-col-lg8 { width: 66.6666%; }
  .layui-col-lg9 { width: 75%; } .layui-col-lg10 { width: 83.3333%; }
  .layui-col-lg11 { width: 91.6666%; } .layui-col-lg12 { width: 100%; }
  .layui-hide-lg { display: none !important; }
}
@media (max-width: 767px) { .layui-hide-xs { display: none !important; } }
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.layui-hide { display: none !important; }
.img-responsive { display: block; width: 100%; height: auto; }

/* 折叠面板（旧 layui-collapse 结构 → 无需 JS 的静态列表） */
.layui-collapse { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--white); }
.layui-colla-item + .layui-colla-item { border-top: 1px solid var(--line); }
.layui-colla-title {
  background: var(--paper); color: var(--ink) !important;
  font-size: 16px; font-weight: 700; margin: 0; padding: 14px 16px;
  border-left: 4px solid var(--accent);
}
.layui-colla-content { display: block; padding: 10px 16px 16px; }
.layui-colla-content.layui-show { display: block; }
.layui-colla-content ul { padding-left: 1.1em; margin: 0; }
.layui-colla-content li { margin: 6px 0; }

/* 轮播（旧 layui-carousel 结构 → 静态首帧 / 新版 .slider 增强） */
.layui-carousel { position: relative; overflow: hidden; background: var(--paper); }
.layui-carousel > [carousel-item] > div { display: none; }
.layui-carousel > [carousel-item] > div:first-child { display: block; }
.layui-carousel img { display: block; width: 100%; height: auto; }

.slider { position: relative; overflow: hidden; background: #e9eff2; }
.slider-track { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; scroll-behavior: smooth; list-style: none; margin: 0; padding: 0; scrollbar-width: none; }
.slider-track::-webkit-scrollbar { display: none; }
.slider-track > li { flex: 0 0 100%; scroll-snap-align: start; }
.slider-track img { display: block; width: 100%; height: auto; aspect-ratio: 1903 / 460; object-fit: cover; }
.slider-btn {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 3;
  width: 44px; height: 44px; border-radius: 50%; border: 0; cursor: pointer;
  background: rgba(20, 46, 67, .62); color: #fff; font-size: 20px; line-height: 1;
  display: grid; place-items: center;
}
.slider-btn:hover { background: var(--accent); }
.slider-btn[data-dir="prev"] { left: 14px; }
.slider-btn[data-dir="next"] { right: 14px; }
.slider-dots { position: absolute; left: 0; right: 0; bottom: 12px; display: flex; justify-content: center; gap: 8px; z-index: 3; }
.slider-dots button {
  width: 26px; height: 6px; border: 0; padding: 0; cursor: pointer; border-radius: 3px;
  background: rgba(255, 255, 255, .55);
}
.slider-dots button[aria-current="true"] { background: #fff; }

/* 4. 页头 / 页脚 ---------------------------------------------------------- */
.modern-wrap { width: min(1200px, 100% - 64px); margin-inline: auto; }
.modern-top { background: var(--ink); color: #dbe8ee; font-size: 13px; padding: 8px 0; }
.modern-top .modern-wrap { display: flex; gap: 24px; align-items: center; flex-wrap: wrap; }
.modern-top .top-note { margin-right: auto; color: #cfe0e8; }
.modern-top a { color: #eaf3f7; }
.modern-top a:hover { color: #fff; text-decoration: underline; }
.modern-header { position: relative; background: var(--white); border-bottom: 1px solid var(--line); z-index: 100; }
.modern-header > .modern-wrap { min-height: 92px; display: flex; align-items: center; gap: 28px; }
.brand { flex-shrink: 0; display: block; }
.brand img { width: 160px; height: 48px; object-fit: contain; }
.modern-nav { display: flex; align-items: center; gap: 22px; margin-left: auto; font-size: 15px; font-weight: 600; }
.nav-group { position: relative; }
.nav-group summary { cursor: pointer; list-style: none; padding: 20px 0; display: block; }
.nav-group summary::-webkit-details-marker { display: none; }
.nav-group summary::after { content: ""; display: inline-block; width: 6px; height: 6px; margin-left: 7px; border-right: 2px solid currentColor; border-bottom: 2px solid currentColor; transform: translateY(-2px) rotate(45deg); }
.nav-dropdown {
  position: absolute; top: 100%; left: -16px; min-width: 220px; z-index: 120;
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 10px;
}
.nav-dropdown a { display: block; padding: 9px 12px; font-weight: 400; font-size: 14px; border-radius: 4px; }
.nav-dropdown a:hover, .nav-dropdown a[aria-current="page"] { background: var(--accent-soft); color: var(--accent-dark); }
.nav-dropdown a[aria-current="page"] { font-weight: 600; }
@media (min-width: 1000px) {
  .nav-group:not([open]) > .nav-dropdown { display: none; }
  .nav-group:hover > .nav-dropdown, .nav-group[open] > .nav-dropdown { display: block; }
}
.header-cta {
  display: inline-flex; align-items: center; gap: 8px; padding: 11px 18px;
  border: 1px solid var(--accent); border-radius: 4px; color: var(--accent);
  font-size: 14px; font-weight: 600; white-space: nowrap;
}
.header-cta:hover { background: var(--accent); color: #fff; }
.modern-search { padding: 10px 12px 4px; margin-top: 8px; border-top: 1px solid var(--line); }
.modern-search label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 4px; }
.modern-search .search-row { display: flex; gap: 6px; }
.modern-search input { flex: 1; min-width: 0; padding: 8px 10px; border: 1px solid var(--line); border-radius: 4px; font: inherit; font-size: 14px; }
.modern-search button { border: 0; background: var(--accent); color: #fff; padding: 8px 14px; border-radius: 4px; cursor: pointer; font: inherit; font-size: 14px; }

.site-footer { background: #0f2739; color: #cfdde5; font-size: 14px; }
.footer-cta { background: var(--paper); color: var(--ink); padding: 34px 0; }
.footer-cta .modern-wrap { display: flex; align-items: center; gap: 30px; flex-wrap: wrap; }
.footer-cta h2 { margin: 0; font-size: 24px; }
.footer-cta p { margin: 6px 0 0; color: var(--muted); }
.footer-cta .cta-actions { margin-left: auto; display: flex; gap: 12px; flex-wrap: wrap; }
.footer-main { padding: 44px 0 30px; }
.footer-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.footer-grid h3 { color: #fff; font-size: 15px; margin: 0 0 14px; letter-spacing: .5px; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin: 8px 0; }
.footer-grid a { color: #cfdde5; }
.footer-grid a:hover { color: #fff; text-decoration: underline; }
.footer-nap { margin-top: 30px; padding-top: 22px; border-top: 1px solid rgba(255, 255, 255, .14); color: #b9cbd6; font-size: 13px; line-height: 1.9; }
.footer-nap strong { color: #fff; }
.footer-bottom { background: #0a1c2a; color: #a8bcc9; font-size: 12px; padding: 16px 0; }
.footer-bottom .modern-wrap { display: flex; gap: 18px; flex-wrap: wrap; align-items: center; }
.footer-bottom a { color: #c8d9e3; }
.footer-bottom a:hover { color: #fff; }

/* 5. 首页模块 ------------------------------------------------------------- */
.home-main { display: block; }
.modern-hero { background: radial-gradient(ellipse at 85% 12%, #d6efee, transparent 55%), #eff4f6; overflow: hidden; }
.modern-hero > .modern-wrap { display: grid; grid-template-columns: 1.2fr .95fr; align-items: center; gap: 64px; padding-block: 74px; }
.eyebrow { font-size: 13px; font-weight: 700; color: var(--accent); letter-spacing: 2px; margin: 0 0 16px; }
.hero-copy h1 { font-size: clamp(29px, 3.1vw, 38px); line-height: 1.34; letter-spacing: -.4px; margin: 0 0 22px; text-wrap: balance; }
.hero-intro { color: var(--muted); font-size: 16px; line-height: 1.95; max-width: 600px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.hero-note { color: var(--muted); font-size: 13px; margin-top: 22px; }
.nowrap { white-space: nowrap; }
.network-card {
  background: var(--ink); color: #fff; padding: 28px; border-radius: 10px;
  box-shadow: 20px 24px 0 rgba(0, 113, 122, .1);
}
.network-top { font-size: 20px; font-weight: 700; border-bottom: 1px solid rgba(255, 255, 255, .22); padding-bottom: 16px; display: flex; justify-content: space-between; align-items: baseline; }
.network-top span { color: #a9cdd3; font-size: 12px; font-weight: 400; }
.network-hub { border: 1px solid #58b3ba; background: rgba(255, 255, 255, .06); text-align: center; padding: 26px 14px; margin: 30px auto; font-size: 20px; max-width: 280px; position: relative; }
.network-hub small { display: block; color: #a9cdd3; font-size: 12px; margin-top: 4px; }
.network-nodes { display: flex; gap: 10px; }
.network-nodes span { flex: 1; border: 1px solid #4c6b7d; padding: 11px 4px; text-align: center; font-size: 12px; }
.network-card > p { text-align: center; font-size: 12px; color: #a9cdd3; margin: 22px 0 0; }
.quick-links { display: grid; grid-template-columns: repeat(4, 1fr); width: min(1200px, 100% - 64px); margin-inline: auto; border-bottom: 1px solid var(--line); }
.quick-links a { padding: 22px 26px; border-right: 1px solid var(--line); font-size: 13px; color: var(--muted); display: block; }
.quick-links a:last-child { border-right: 0; }
.quick-links a:hover { background: var(--accent-soft); color: var(--accent-dark); }
.quick-links strong { display: block; font-size: 15px; color: var(--ink); margin-top: 4px; }
.home-main section:not(.modern-hero) { padding: 60px 0; }
.home-main > section:nth-of-type(even) { background: var(--paper); }
.home-main h2.text-center, .home-main h2.text-left { margin-bottom: 34px; }
.section-lead { color: var(--muted); max-width: 780px; margin: -18px auto 36px; text-align: center; }
.section-lead.left { margin-left: 0; text-align: left; }

.svc-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.svc-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 20px; text-align: center; transition: box-shadow .2s, transform .2s; }
.svc-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.svc-card img { width: 56px; height: 56px; object-fit: contain; }
.svc-card h3 { margin: 14px 0 8px; font-size: 18px; }
.svc-card p { color: var(--muted); font-size: 14px; margin: 0 0 6px; }

.figure-wide { margin: 0; }
.figure-wide img { display: block; width: 100%; height: auto; border-radius: var(--radius); border: 1px solid var(--line); }
.figure-wide figcaption { color: var(--muted); font-size: 13px; margin-top: 10px; text-align: center; }

.solution-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.solution-grid a {
  display: flex; flex-direction: column; gap: 8px; padding: 22px 20px;
  border: 1px solid var(--line); border-top: 3px solid var(--accent);
  border-radius: var(--radius); background: var(--white); transition: box-shadow .2s, transform .2s;
}
.solution-grid a:hover { box-shadow: var(--shadow); transform: translateY(-3px); color: var(--ink); }
.solution-grid .sol-kicker { font-size: 12px; font-weight: 700; letter-spacing: 1px; color: var(--accent); }
.solution-grid strong { font-size: 16px; line-height: 1.45; }
.solution-grid .sol-desc { font-size: 13px; color: var(--muted); line-height: 1.75; }

.feature-4 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.feature-4 article { background: var(--white); border: 1px solid var(--line); border-left: 4px solid var(--accent); border-radius: var(--radius); padding: 24px 26px; }
.feature-4 h3 { margin: 0 0 10px; font-size: 19px; }
.feature-4 p { color: var(--muted); margin: 0 0 8px; font-size: 15px; }
.feature-4 p:last-child { margin-bottom: 0; }

.faq-list { max-width: 920px; margin-inline: auto; display: grid; gap: 12px; }
.faq-list details { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 4px 20px; }
.faq-list summary { cursor: pointer; font-weight: 700; font-size: 17px; padding: 14px 0; list-style: none; position: relative; padding-right: 32px; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 0; top: 12px; font-size: 22px; color: var(--accent); line-height: 1; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list p { color: var(--muted); margin: 0 0 16px; }

.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-col { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.news-col h3 { font-size: 17px; margin: 0 0 14px; padding-bottom: 12px; border-bottom: 1px solid var(--line); }
.news-col ul { list-style: none; padding: 0; margin: 0; }
.news-col li { margin: 10px 0; font-size: 14px; line-height: 1.7; display: flex; gap: 8px; }
.news-col time { color: var(--muted); font-size: 12px; white-space: nowrap; flex-shrink: 0; }
.news-col a { color: var(--ink-soft); }
.news-col a.button-primary, .news-col a.button-secondary, .news-col a.layui-btn { color: #fff; }
.news-col a:hover { color: var(--accent); text-decoration: underline; }

.client-logos { display: flex; flex-wrap: wrap; gap: 22px 34px; align-items: center; justify-content: center; margin-top: 10px; }
.client-logos img { max-height: 56px; width: auto; filter: grayscale(1); opacity: .82; }
.client-logos a:hover img { filter: none; opacity: 1; }

/* 6. 内页组件 ------------------------------------------------------------- */
.page-head { background: linear-gradient(120deg, #eef5f6, #f7fafb); border-bottom: 1px solid var(--line); padding: 30px 0; }
.page-head h1 { margin: 0 0 8px; font-size: clamp(24px, 3vw, 34px); }
.page-head p { margin: 0; color: var(--muted); }
.breadcrumb { font-size: 13px; color: var(--muted); padding: 14px 0; }
.breadcrumb ol { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; padding: 0; margin: 0; }
.breadcrumb li { display: flex; align-items: center; gap: 6px; }
.breadcrumb li + li::before { content: "/"; color: #9db0bd; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--accent); text-decoration: underline; }
.breadcrumb [aria-current="page"] { color: var(--ink); font-weight: 600; }

#navigation_mt { margin-bottom: 22px; }
.navigation_t { font-size: 13px; color: var(--muted); display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.navigation_t a { color: var(--muted); }
.navigation_t a:hover { color: var(--accent); text-decoration: underline; }
.mainnav_arrow { width: 6px; height: 6px; border-right: 1px solid #9db0bd; border-bottom: 1px solid #9db0bd; transform: rotate(-45deg); }
.mainnav_arrow::after { content: ""; }

#product { padding-bottom: 60px; }
#product .layui-container { padding-top: 26px; }
#product .content { line-height: 1.95; overflow-wrap: anywhere; padding: 0 0 0 26px; }
#product .content img { max-width: 100%; height: auto; border-radius: 4px; }
#product .content h1 { color: var(--ink) !important; font-size: clamp(24px, 2.8vw, 32px); margin-bottom: 18px !important; }
#product .content p { color: #33495c; }
#product .content strong { color: var(--ink); }
#product .content .layui-col-xs4 { padding: 12px 14px; }
#product .content .layui-col-xs4 img { width: 42%; }
#sidebar-nav { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
#sidebar-nav h2 { font-size: 16px; margin: 0; padding: 14px 16px; background: var(--accent-soft); color: var(--accent-dark); border-bottom: 1px solid var(--line); }
#sidebar-nav ul { list-style: none; margin: 0; padding: 8px; }
#sidebar-nav li { margin: 2px 0; }
#sidebar-nav a { display: block; padding: 8px 12px; font-size: 14px; border-radius: 4px; color: var(--ink-soft); }
#sidebar-nav a:hover { background: var(--paper); color: var(--accent-dark); }
#sidebar-nav a[aria-current="page"] { background: var(--accent-soft); color: var(--accent-dark); font-weight: 700; }

.newsList { padding-left: 0; list-style: none; }
.newsList li { padding: 14px 0; border-bottom: 1px solid var(--line); display: flex; gap: 14px; align-items: baseline; }
.newsList time { color: var(--muted); font-size: 13px; flex-shrink: 0; }

.newsTitle { font-size: clamp(24px, 2.8vw, 32px); line-height: 1.45; font-weight: 700; margin: 0 0 12px; }
.newsContent .info { color: var(--muted); font-size: 13px; border-bottom: 1px solid var(--line); padding-bottom: 14px; margin-bottom: 26px; display: flex; gap: 16px; flex-wrap: wrap; }
.newsDetails { font-size: 16px; line-height: 1.95; overflow-wrap: anywhere; }
.newsDetails img { height: auto !important; max-width: 100% !important; border-radius: 4px; }
.article-tools { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; border-top: 1px solid var(--line); padding-top: 20px; margin-top: 34px; }
.article-tools button { background: var(--accent); color: #fff; border: 0; padding: 10px 18px; border-radius: 4px; cursor: pointer; font: inherit; font-size: 14px; }
.article-tools button:hover { background: var(--accent-dark); }
.article-tools a { font-size: 14px; color: var(--accent); }
.related-posts { margin-top: 40px; background: var(--paper); border-radius: var(--radius); padding: 22px 24px; }
.related-posts h2 { font-size: 18px; margin: 0 0 12px; }
.related-posts ul { list-style: none; padding: 0; margin: 0; }
.related-posts li { margin: 8px 0; }

/* 7. 按钮 / 表单 / 提示 --------------------------------------------------- */
.button-primary, .button-secondary, .btn, .layui-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 20px; font-size: 14px; font-weight: 600; border-radius: 4px;
  border: 1px solid transparent; cursor: pointer; font-family: inherit; line-height: 1.4;
}
.button-primary, .layui-btn { background: var(--accent); color: #fff; }
.button-primary:hover, .layui-btn:hover { background: var(--accent-dark); color: #fff; }
.button-secondary { background: #fff; border-color: #a9bcc6; color: var(--ink); }
.button-secondary:hover { border-color: var(--accent); color: var(--accent-dark); }
.layui-btn-danger { background: var(--accent); color: #fff; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); color: #fff; }
.btn { background: var(--paper); border-color: var(--line); color: var(--ink); }
.btn:hover { background: var(--accent-soft); color: var(--accent-dark); }

form .field, .form-item { margin-bottom: 16px; }
form label { font-weight: 600; font-size: 14px; display: block; margin-bottom: 6px; }
input[type="text"], input[type="tel"], input[type="email"], input[type="search"], textarea, select {
  width: 100%; padding: 10px 12px; border: 1px solid #c6d4dc; border-radius: 4px;
  font: inherit; font-size: 15px; color: var(--ink); background: #fff;
}
input:focus, textarea:focus, select:focus { border-color: var(--accent); }
.hint { color: var(--muted); font-size: 13px; }
.required { color: var(--danger); }

.contact-block { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin: 26px 0; }
.contact-block > div { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px; }
.contact-block h2, .contact-block h3 { font-size: 16px; margin: 0 0 8px; color: var(--accent-dark); }
.contact-block p { margin: 0 0 6px; color: var(--muted); font-size: 15px; }
.contact-block a { color: var(--ink); font-weight: 600; }
.contact-block a:hover { color: var(--accent); text-decoration: underline; }

/* 8. 响应式 --------------------------------------------------------------- */
@media (max-width: 1050px) {
  .modern-nav { gap: 15px; font-size: 14px; }
  .modern-hero > .modern-wrap { gap: 34px; }
  .svc-grid { grid-template-columns: repeat(2, 1fr); }
  .solution-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-block { grid-template-columns: 1fr; }
}
@media (max-width: 860px) {
  .modern-hero > .modern-wrap { grid-template-columns: minmax(0, 1fr); padding-block: 44px; }
  .network-card { box-shadow: none; max-width: 100%; }
  .feature-4 { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  #product .content { padding-left: 0; }
}
@media (max-width: 767px) {
  body { font-size: 15px; }
  .modern-wrap, .layui-container, .quick-links { width: calc(100% - 32px); }
  .modern-top .modern-wrap { gap: 10px; font-size: 11px; }
  .modern-top .top-note { display: none; }
  .modern-header > .modern-wrap { flex-wrap: wrap; padding: 12px 0; gap: 0; min-height: 0; }
  .brand img { width: 138px; height: 42px; }
  .modern-nav { width: 100%; margin-top: 10px; padding-top: 8px; border-top: 1px solid var(--line); gap: 6px 18px; flex-wrap: wrap; font-size: 14px; }
  .nav-group summary { padding: 6px 0; }
  .nav-dropdown { position: static; min-width: 0; box-shadow: none; border: 0; border-left: 2px solid var(--accent-soft); border-radius: 0; padding: 4px 0 8px 8px; }
  .header-cta { display: none; }
  .quick-links { grid-template-columns: 1fr 1fr; border: 1px solid var(--line); border-radius: var(--radius); margin-top: 20px; }
  .quick-links a { padding: 14px; border-bottom: 1px solid var(--line); }
  .home-main section:not(.modern-hero) { padding: 38px 0; }
  .svc-grid, .solution-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .feature-4 article { padding: 18px; }
  .footer-grid { grid-template-columns: 1fr; gap: 18px; }
  .footer-cta .cta-actions { margin-left: 0; }
  .slider-track img { aspect-ratio: 16 / 9; }
  .slider-btn { width: 36px; height: 36px; font-size: 16px; }
  .page-head { padding: 22px 0; }
  #product .layui-col-xs4 { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

/* 打印 */
@media print {
  .modern-top, .modern-header, .site-footer, .slider-btn, .slider-dots { display: none !important; }
  body { color: #000; }
}

/* 9. 内页补充（横幅 / 侧边联系 / 列表 / 分页） ---------------------------- */
.page-banner { display: block; overflow: hidden; background: var(--paper); max-height: 460px; }
.page-banner > [carousel-item] > div { display: none; }
.page-banner > [carousel-item] > div:first-child { display: block; }
.page-banner img { display: block; width: 100%; height: auto; max-height: 460px; object-fit: cover; }
@media (max-width: 767px) { .page-banner, .page-banner img { max-height: 200px; } }

.contact-dock {
  position: fixed; right: 14px; bottom: 84px; z-index: 200;
  display: flex; flex-direction: column; gap: 8px;
}
.contact-dock .dock-item {
  position: relative; width: 54px; height: 54px; border: 0; padding: 0; cursor: pointer;
  background: var(--ink); color: #fff; border-radius: 8px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  font: inherit; font-size: 11px; line-height: 1.2; box-shadow: 0 6px 16px rgba(20, 46, 67, .22);
}
.contact-dock .dock-item:hover, .contact-dock .dock-item:focus-visible { background: var(--accent); color: #fff; }
.contact-dock .dock-icon { font-size: 16px; font-weight: 700; }
.contact-dock .dock-qr > summary { list-style: none; display: flex; flex-direction: column; align-items: center; justify-content: center; width: 100%; height: 100%; }
.contact-dock .dock-qr > summary::-webkit-details-marker { display: none; }
.contact-dock .dock-panel {
  position: absolute; right: 64px; bottom: 0; width: 168px; background: #fff;
  border: 1px solid var(--line); border-radius: 8px; box-shadow: var(--shadow);
  padding: 10px; text-align: center;
}
.contact-dock .dock-panel img { display: block; margin: 0 auto 6px; }
.contact-dock .dock-panel p { margin: 0; font-size: 12px; color: var(--muted); }
@media (max-width: 767px) {
  /* 移动端：悬浮条改为底部横条，避免遮挡正文 */
  body { padding-bottom: 56px; }
  .contact-dock {
    left: 0; right: 0; bottom: 0; flex-direction: row; gap: 0;
    background: #fff; border-top: 1px solid var(--line); box-shadow: 0 -3px 14px rgba(20, 46, 67, .10);
  }
  .contact-dock .dock-item {
    flex: 1 1 0; width: auto; height: 55px; border-radius: 0; background: #fff; color: var(--ink);
    box-shadow: none; font-size: 11px; flex-direction: row; gap: 6px;
  }
  .contact-dock .dock-item:hover, .contact-dock .dock-item:focus-visible { background: var(--accent-soft); color: var(--accent-dark); }
  .contact-dock .dock-qr > summary { flex-direction: row; gap: 6px; }
  .contact-dock .dock-panel { right: 12px; bottom: 58px; }
  .hero-br { display: none; }
}

.news-list { list-style: none; padding: 0; margin: 0; }
.news-list li { border-bottom: 1px dashed var(--line); }
.news-list a { display: flex; gap: 14px; align-items: baseline; padding: 15px 2px; }
.news-list a:hover { color: var(--accent); }
.news-list .news-title { flex: 1; font-weight: 500; }
.news-list time, .news-list .hits { color: var(--muted); font-size: 13px; white-space: nowrap; }
.news-list .hits::before { content: "阅读 "; }
.content.newsList { padding: 0 0 0 26px; }
.newsList p { border-bottom: 1px dashed var(--line); margin: 0; padding: 14px 2px; display: flex; gap: 12px; align-items: baseline; }
.newsList p a { flex: 1; }
.newsList p span { color: var(--muted); font-size: 13px; }
.layui-laypage { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin: 26px 0 0; }
.layui-laypage a, .layui-laypage span, .layui-box a, .layui-box span {
  display: inline-block; min-width: 36px; padding: 7px 12px; border: 1px solid var(--line);
  border-radius: 4px; font-size: 14px; color: var(--ink-soft); background: #fff; text-align: center;
}
.layui-laypage .layui-laypage-curr, .layui-box .current, .layui-laypage em {
  background: var(--accent); color: #fff; border-color: var(--accent); font-style: normal; display: inline-block; padding: 7px 12px; border-radius: 4px;
}
.xqItem { display: block; text-align: center; border: 1px solid var(--line); border-top: 3px solid var(--accent); border-radius: var(--radius); background: #fff; padding: 24px 18px; margin-bottom: 18px; }
.xqItem h3 { font-size: 18px; margin: 0 0 10px; }
.xqItem h4 { font-size: 15px; margin: 12px 0 6px; }
.xqItem small { color: var(--muted); }
.button1 { display: inline-block; padding: 10px 22px; background: var(--accent); color: #fff; border-radius: 4px; font-size: 14px; }
.button1:hover { background: var(--accent-dark); color: #fff; }
.pull-right { float: right; }
.newsLabel { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 10px 14px; font-size: 13px; color: var(--muted); margin: 22px 0; }
.opt-btn { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 26px; }
.opt-btn a { padding: 9px 20px; border: 1px solid var(--line); border-radius: 20px; font-size: 14px; }
.opt-btn a:hover { border-color: var(--accent); color: var(--accent-dark); }
.layui-tab-item { display: block; }
.layui-tab-item + .layui-tab-item { margin-top: 26px; }

/* 9. 语义层级兼容（保持 h3 视觉尺寸的 h2 / 导语段落 / 表格内链接） ---------- */
.content h2.h3-size { font-size: 19px; }
.lead { font-size: 17px; font-weight: 600; color: var(--ink-soft); margin: 0 0 20px; }
.content table td a { color: var(--accent); font-weight: 600; }
.content table td a:hover { text-decoration: underline; }
.content table th, .content table td { font-size: 15px; }

/* 10. HTML 站点地图 ------------------------------------------------------- */
.sm-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 26px; margin: 26px 0 60px; align-items: start; }
.sm-block { border: 1px solid var(--line); border-radius: var(--radius); background: #fff; padding: 22px 24px; }
.sm-block h2 { font-size: 18px; margin: 0 0 14px; padding-bottom: 10px; border-bottom: 2px solid var(--accent-soft); }
.sm-wide { grid-column: 1 / -1; }
.sm-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px 20px; }
.sm-wide .sm-list { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.sm-list li { display: flex; justify-content: space-between; gap: 12px; align-items: baseline; font-size: 14px; }
.sm-list a { color: var(--ink-soft); text-decoration: underline; text-decoration-color: #c3d3dc; text-underline-offset: 3px; }
.sm-list a:hover { color: var(--accent); text-decoration-color: var(--accent); }
.sm-list time { color: var(--muted); font-size: 12px; white-space: nowrap; }
.sm-more { margin: 14px 0 0; font-size: 14px; }
.sm-more a { color: var(--accent); font-weight: 600; }
@media (max-width: 767px) {
  .sm-grid { grid-template-columns: minmax(0, 1fr); gap: 18px; }
  .sm-wide .sm-list { grid-template-columns: minmax(0, 1fr); }
  .sm-block { padding: 18px; }
}

/* 11. 404 页面 ------------------------------------------------------------ */
.nf-code { font-size: 58px; font-weight: 800; line-height: 1; color: #b6d6d9; letter-spacing: 4px; margin: 0 0 10px; }
.nf-wrap { max-width: 860px; margin: 34px auto 70px; }
.nf-search { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 24px; }
.nf-search label { display: block; font-weight: 700; color: var(--ink); margin-bottom: 10px; }
.nf-row { display: flex; gap: 10px; }
.nf-row input { flex: 1; min-width: 0; padding: 11px 12px; border: 1px solid var(--line); border-radius: 4px; font: inherit; font-size: 15px; background: #fff; }
.nf-row button { padding: 11px 22px; border: 1px solid var(--accent); background: var(--accent); color: #fff; border-radius: 4px; font: inherit; font-weight: 600; cursor: pointer; }
.nf-row button:hover { background: var(--accent-dark); }
.nf-title { font-size: 18px; margin: 34px 0 14px; }
.nf-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.nf-grid a { display: block; border: 1px solid var(--line); border-top: 3px solid var(--accent); border-radius: var(--radius); background: #fff; padding: 16px 18px; }
.nf-grid a:hover { border-color: var(--accent); box-shadow: var(--shadow); }
.nf-grid strong { display: block; color: var(--ink); font-size: 15px; margin-bottom: 6px; }
.nf-grid span { color: var(--muted); font-size: 13px; }
.nf-help { margin: 26px 0 0; color: var(--muted); font-size: 14px; }
.nf-help a { color: var(--accent); font-weight: 600; }
@media (max-width: 767px) {
  .nf-code { font-size: 44px; }
  .nf-row { flex-direction: column; }
  .nf-grid { grid-template-columns: minmax(0, 1fr); }
}

/* 12. 语言切换 ------------------------------------------------------------- */
.lang-switch { display: inline-flex; gap: 2px; align-items: center; margin-left: 4px; }
.lang-switch a {
  padding: 2px 8px; border-radius: 3px; font-size: 12px; color: #dbe8ee;
  border: 1px solid rgba(255, 255, 255, .25); line-height: 1.5;
}
.lang-switch a:hover { background: rgba(255, 255, 255, .12); color: #fff; text-decoration: none; }
.lang-switch a[aria-current="true"] { background: #fff; color: var(--ink); border-color: #fff; font-weight: 700; }
@media (max-width: 767px) { .lang-switch a { padding: 2px 6px; font-size: 11px; } }