/* ============================================================
   中芯锐动官网 — 全站样式
   设计还原自 1首页/2解决方案/3核心业务/4关于我们/5新闻动态/
   6新闻详情/7联系我们 设计稿 @1x (1920px)
   ============================================================ */

:root {
  --primary: #164a9a;          /* 主蓝（导航/链接/标题条） */
  --primary-hover: #0f3a7d;
  --footer-bg: #124089;        /* 页脚深蓝 */
  --footer-bar: #0e336e;       /* 页脚版权条 */
  --ink: #1f2b43;              /* 深藏青标题 */
  --text: #555f6e;             /* 正文 */
  --text-light: #8a94a3;       /* 辅助文字 */
  --bg-gray: #f5f5f6;          /* 灰色分区背景 */
  --card-gray: #f6f7f9;        /* 业务卡片背景 */
  --line: #e8eaf0;             /* 分割线 */
  --radius: 4px;
  --container: 1620px;
  --header-h: 84px;
  --shadow-sm: 0 2px 10px rgba(23, 43, 99, .06);
  --shadow-md: 0 12px 32px rgba(23, 43, 99, .12);
  --ease: cubic-bezier(.22, .61, .36, 1);
}

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

html { scroll-behavior: smooth; }
:target { scroll-margin-top: 100px; }

body {
  font-family: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  font-size: 15px;
  line-height: 1.8;
  background: #fff;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; transition: color .25s var(--ease); }
ul { list-style: none; }
img { display: block; max-width: 100%; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 60px; }

/* ============================ 顶部导航 ============================ */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 1000;
  height: var(--header-h);
  background: #fff;
  transition: box-shadow .3s var(--ease);
}
.site-header.scrolled { box-shadow: 0 4px 18px rgba(20, 40, 90, .1); }
.header-inner {
  max-width: 1860px; margin: 0 auto; padding: 0 40px 0 60px;
  height: 100%; display: flex; align-items: center; gap: 40px;
}
.logo { display: flex; align-items: center; flex-shrink: 0; }
.logo img { height: 46px; width: auto; display: block; }

.main-nav { display: flex; align-items: center; margin-left: auto; height: 100%; }
.main-nav a {
  position: relative; display: flex; align-items: center; height: 100%;
  padding: 0 34px; font-size: 15px; color: #333; letter-spacing: 1px;
}
.main-nav a:hover { color: var(--primary); }
.main-nav a.active { color: var(--primary); font-weight: 600; }
.main-nav a.active::after {
  content: ""; position: absolute; left: 30px; right: 30px; bottom: 0;
  height: 3px; background: var(--primary); border-radius: 2px;
}
.header-tools { display: flex; align-items: center; gap: 18px; flex-shrink: 0; margin-left: 26px; }
.tool-btn {
  width: 34px; height: 34px; border-radius: 50%; border: 1px solid #cfd6e0;
  display: flex; align-items: center; justify-content: center; cursor: pointer;
  background: #fff; color: #8a94a3; transition: all .25s var(--ease);
}
.tool-btn:hover { color: var(--primary); border-color: var(--primary); }
.lang { position: relative; }
.lang-btn {
  display: flex; align-items: center; gap: 7px; cursor: pointer;
  font-size: 14px; color: #555; background: none; border: none; font-family: inherit;
}
.lang-btn .caret { transition: transform .25s; }
.lang.open .lang-btn .caret { transform: rotate(180deg); }
.lang-menu {
  position: absolute; top: calc(100% + 10px); right: 0; min-width: 110px;
  background: #fff; border-radius: 6px; box-shadow: var(--shadow-md);
  padding: 6px; opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: all .25s var(--ease);
}
.lang.open .lang-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.lang-menu button {
  display: block; width: 100%; text-align: left; padding: 8px 12px; font-size: 13px;
  border: none; background: none; cursor: pointer; border-radius: 4px; color: #444;
}
.lang-menu button:hover, .lang-menu button.on { background: #eef3fb; color: var(--primary); }

/* 移动端汉堡 */
.burger { display: none; width: 40px; height: 40px; border: none; background: none; cursor: pointer; flex-direction: column; gap: 5px; align-items: center; justify-content: center; }
.burger span { width: 22px; height: 2px; background: #333; transition: all .3s; }

/* 搜索浮层 */
.search-layer {
  position: fixed; inset: 0; z-index: 2000; background: rgba(10, 25, 55, .92);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden; transition: all .3s var(--ease);
}
.search-layer.open { opacity: 1; visibility: visible; }
.search-box { width: min(640px, 86vw); transform: translateY(-24px); transition: transform .35s var(--ease); }
.search-layer.open .search-box { transform: translateY(0); }
.search-box input {
  width: 100%; background: none; border: none; border-bottom: 2px solid rgba(255,255,255,.5);
  color: #fff; font-size: 22px; padding: 12px 4px; outline: none; font-family: inherit;
}
.search-box input::placeholder { color: rgba(255,255,255,.45); }
.search-hint { color: rgba(255,255,255,.65); font-size: 13px; margin-top: 14px; }
.search-results { margin-top: 20px; max-height: 40vh; overflow: auto; }
.search-results a {
  display: block; color: #dce6f7; padding: 10px 6px; font-size: 15px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.search-results a:hover { color: #fff; background: rgba(255,255,255,.06); }
.search-close { position: absolute; top: 30px; right: 44px; font-size: 34px; color: #fff; cursor: pointer; line-height: 1; }

/* ============================ 内页 Banner ============================ */
.page-banner {
  position: relative; height: 420px; margin-top: var(--header-h);
  background-color: #0d1f3c; background-size: cover; background-position: center;
  display: flex; align-items: center; overflow: hidden;
}
.page-banner::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(10,32,74,.35), rgba(10,32,74,.05) 60%); }
.page-banner .container { position: relative; z-index: 2; width: 100%; }
.banner-title-en { color: #fff; font-size: 64px; font-weight: 800; letter-spacing: 2px; line-height: 1.1; font-family: Arial, "Microsoft YaHei", sans-serif; }
.banner-title-cn { color: #fff; font-size: 30px; font-weight: 400; letter-spacing: 6px; margin-top: 14px; }
.banner-reveal { animation: bannerUp .9s var(--ease) both .1s; }
@keyframes bannerUp { from { opacity: 0; transform: translateY(34px); } to { opacity: 1; transform: none; } }

/* 面包屑 */
.breadcrumb { display: flex; justify-content: flex-end; padding: 26px 0 0; font-size: 14px; color: #999; }
.breadcrumb a { color: var(--primary); }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb .sep { margin: 0 8px; color: #bbb; }

/* ============================ 区块标题 ============================ */
.section { padding: 80px 0; }
.section-title { display: flex; align-items: center; gap: 14px; }
.section-title .bar { width: 7px; height: 30px; background: var(--primary); border-radius: 2px; flex-shrink: 0; }
.section-title h2 { font-size: 30px; color: var(--ink); font-weight: 700; letter-spacing: 1px; }
.section-title .more { margin-left: auto; font-size: 14px; color: var(--primary); }
.section-title .more:hover { color: var(--primary-hover); }

/* ============================ 首页 Hero ============================ */
.hero {
  position: relative; height: 640px; margin-top: var(--header-h); overflow: hidden; background: #0d1f3c;
}
.hero-slide {
  position: absolute; inset: 0; opacity: 0; transition: opacity 1s var(--ease);
  background-size: cover; background-position: center;
  display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center;
}
.hero-slide.active { opacity: 1; }
.hero-slide::before { content: ""; position: absolute; inset: 0; background: rgba(8, 24, 52, .28); }
.hero-slide.active .hero-inner { animation: heroUp 1s var(--ease) both .15s; }
@keyframes heroUp { from { opacity: 0; transform: translateY(40px); } to { opacity: 1; transform: none; } }
.hero-inner { position: relative; z-index: 2; padding: 0 20px; }
.hero-inner h1 { color: #fff; font-size: 62px; font-weight: 800; letter-spacing: 4px; text-shadow: 0 4px 24px rgba(0,0,0,.35); }
.hero-inner p { color: rgba(255,255,255,.92); font-size: 21px; letter-spacing: 5px; margin-top: 26px; text-shadow: 0 2px 12px rgba(0,0,0,.4); }
.hero-arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 5;
  width: 46px; height: 46px; border-radius: 50%; border: 1px solid rgba(255,255,255,.55);
  background: rgba(255,255,255,.12); color: #fff; font-size: 18px; cursor: pointer;
  display: flex; align-items: center; justify-content: center; transition: all .25s var(--ease);
  backdrop-filter: blur(2px);
}
.hero-arrow:hover { background: rgba(255,255,255,.28); }
.hero-arrow.prev { left: 34px; }
.hero-arrow.next { right: 34px; }
.hero-dots { position: absolute; bottom: 76px; left: 0; right: 0; z-index: 5; display: flex; justify-content: center; gap: 10px; }
.hero-dots button { width: 10px; height: 10px; border-radius: 50%; border: none; background: rgba(255,255,255,.45); cursor: pointer; transition: all .3s; }
.hero-dots button.on { background: #fff; width: 26px; border-radius: 5px; }
.hero-scroll {
  position: absolute; bottom: 22px; left: 50%; transform: translateX(-50%); z-index: 5;
  width: 40px; height: 40px; border-radius: 50%; border: 1px solid rgba(255,255,255,.6);
  background: rgba(255,255,255,.15); color: #fff; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  animation: floatY 2s ease-in-out infinite;
}
.ripple {
  position: fixed; border-radius: 50%; transform: translate(-50%, -50%) scale(0);
  pointer-events: none; z-index: 9999;
  background: radial-gradient(circle, rgba(255,255,255,.35) 0%, rgba(255,255,255,0) 70%);
  animation: rippleExpand .7s ease-out forwards;
}
@keyframes rippleExpand { to { transform: translate(-50%, -50%) scale(4); opacity: 0; } }
@keyframes floatY { 0%,100% { transform: translate(-50%, 0); } 50% { transform: translate(-50%, 7px); } }

/* ============================ 首页 · 核心业务 ============================ */
.biz-intro { position: relative; margin-top: 34px; padding-right: 120px; }
.biz-intro p { font-size: 16px; line-height: 2.1; color: #4a5568; }
.biz-intro .company { color: var(--primary); font-weight: 700; }
.quote-mark {
  position: absolute; right: 0; top: -6px; font-size: 150px; line-height: 1;
  color: #eceff4; font-family: Georgia, serif; font-weight: 700; user-select: none; pointer-events: none;
}
.biz-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; margin-top: 56px; }
.biz-card {
  position: relative; background: var(--card-gray); padding: 34px 32px 88px; min-height: 205px;
  transition: all .35s var(--ease); overflow: hidden; cursor: pointer;
}
.biz-card h3 { font-size: 20px; color: #2b3648; font-weight: 600; transition: color .3s; }
.biz-card .en { font-size: 12px; color: #a7b0bd; margin-top: 6px; letter-spacing: .3px; }
.biz-card .num {
  position: absolute; left: 32px; bottom: 18px; font-size: 46px; font-weight: 800;
  color: #dfe3ea; line-height: 1; transition: color .3s;
}
.biz-card .icon { position: absolute; right: 30px; bottom: 22px; color: #9aa4b2; transition: all .35s var(--ease); }
.biz-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-md); background: #fff; }
.biz-card:hover h3 { color: var(--primary); }
.biz-card:hover .num { color: rgba(22, 74, 154, .18); }
.biz-card:hover .icon { color: var(--primary); transform: scale(1.12); }

/* ============================ 首页 · 新闻动态 ============================ */
.news-section { background: var(--bg-gray); }
.news-featured {
  display: grid; grid-template-columns: 46% 1fr; gap: 48px; background: #fff;
  margin-top: 44px; padding: 0; box-shadow: var(--shadow-sm); transition: all .35s var(--ease);
}
.news-featured:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.news-featured .pic { overflow: hidden; height: 100%; min-height: 320px; }
.news-featured .pic img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.news-featured:hover .pic img { transform: scale(1.05); }
.news-featured .body { padding: 44px 44px 30px 0; display: flex; flex-direction: column; }
.news-featured h3 { font-size: 21px; color: var(--ink); font-weight: 700; line-height: 1.5; }
.news-featured h3 a:hover { color: var(--primary); }
.news-featured .desc { font-size: 14.5px; color: #6b7686; line-height: 2; margin-top: 18px;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.news-featured .foot { margin-top: auto; display: flex; align-items: flex-end; justify-content: space-between; padding-top: 24px; }
.news-date { font-size: 13.5px; color: #9aa4b2; }
.circle-btn {
  width: 46px; height: 46px; border-radius: 50%; border: 1px solid #dfe3ea; background: #fff;
  display: inline-flex; align-items: center; justify-content: center; color: #9aa4b2;
  transition: all .3s var(--ease); cursor: pointer; flex-shrink: 0;
}
.circle-btn:hover { background: var(--primary); border-color: var(--primary); color: #fff; transform: rotate(45deg); }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; margin-top: 26px; }
.news-card { background: #fff; box-shadow: var(--shadow-sm); transition: all .35s var(--ease); display: flex; flex-direction: column; }
.news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.news-card .pic { height: 212px; overflow: hidden; }
.news-card .pic img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.news-card:hover .pic img { transform: scale(1.06); }
.news-card .body { padding: 22px 24px 20px; flex: 1; display: flex; flex-direction: column; }
.news-card h4 { font-size: 15px; color: #333c4b; font-weight: 600; line-height: 1.7;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; min-height: 51px; }
.news-card h4 a:hover { color: var(--primary); }
.news-card .foot { display: flex; align-items: center; justify-content: space-between; margin-top: auto; padding-top: 16px; border-top: 1px solid #f0f2f5; }
.news-card .foot .date { font-size: 13px; color: #9aa4b2; }
.news-card .foot svg { color: #b7bfca; transition: all .3s; }
.news-card:hover .foot svg { color: var(--primary); }

/* ============================ 首页 · 企业资质轮播 ============================ */
.cert-carousel { position: relative; margin-top: 60px; height: 500px; overflow: hidden; }
.cert-track { position: absolute; inset: 0; }
.cert-item {
  position: absolute; top: 50%; left: 50%; z-index: 1;
  transform: translate(-50%, -50%) scale(.75);
  opacity: 0; transition: all .7s var(--ease); cursor: pointer;
}
.cert-item img {
  max-height: 440px; width: auto; max-width: 36vw;
  display: block; background: transparent;
  box-shadow: 0 14px 40px rgba(16, 30, 60, .16);
}
.cert-item.pos-center { z-index: 5; opacity: 1; transform: translate(-50%, -50%) scale(1); }
.cert-item.pos-left  { z-index: 3; opacity: .35; left: 16%; transform: translate(-50%, -50%) scale(.82); }
.cert-item.pos-right { z-index: 3; opacity: .35; left: 84%; transform: translate(-50%, -50%) scale(.82); }
.cert-item.pos-hidden { z-index: 0; opacity: 0; left: 50%; transform: translate(-50%, -50%) scale(.7); }
.cert-caption-wrap { text-align: center; margin-top: 22px; }
.cert-caption { font-size: 15px; color: #4a5568; min-height: 24px; }
.cert-arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 8;
  width: 48px; height: 48px; border-radius: 50%; border: 1px solid #d8dee8; background: #fff;
  color: #8a94a3; cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: all .25s var(--ease); box-shadow: var(--shadow-sm);
}
.cert-arrow:hover { background: var(--primary); border-color: var(--primary); color: #fff; }
.cert-arrow.prev { left: 40px; }
.cert-arrow.next { right: 40px; }

/* ============================ 页脚 ============================ */
.site-footer { background: var(--footer-bg); color: #fff; margin-top: 90px; }
.footer-main { display: grid; grid-template-columns: 1.35fr 1fr 1.4fr 1.15fr; gap: 40px; padding: 74px 0 60px; }
.f-phone { display: flex; align-items: center; gap: 16px; }
.f-phone .ph-icon {
  width: 44px; height: 44px; border-radius: 50%; background: #fff; color: var(--footer-bg);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.f-phone strong { font-size: 26px; letter-spacing: 1px; font-weight: 700; }
.f-addr { margin-top: 30px; font-size: 13.5px; color: rgba(255,255,255,.82); line-height: 2.1; }
.f-qr { margin-top: 44px; display: flex; flex-direction: column; align-items: flex-start; }
.f-qr .qr-box { width: 100px; line-height: 0; background: #fff; border-radius: 2px; overflow: hidden; }
.f-qr .qr-box img { width: 100%; display: block; }
.f-qr span { display: block; width: 100px; text-align: center; font-size: 13px; color: rgba(255,255,255,.85); margin-top: 12px; letter-spacing: 2px; }
.f-col h4 { font-size: 16px; font-weight: 700; letter-spacing: 1px; margin-bottom: 24px; }
.f-col li { margin-bottom: 15px; }
.f-col a { font-size: 13.5px; color: rgba(255,255,255,.72); position: relative; }
.f-col a:hover { color: #fff; padding-left: 6px; }
.footer-bottom {
  grid-column: 1 / -1;
  display: flex; align-items: center; justify-content: space-between;
  border-top: 1px solid rgba(255,255,255,.12);
  padding-top: 26px; margin-top: 16px;
  font-size: 12.5px; color: rgba(255,255,255,.68);
}
.footer-bottom a { color: rgba(255,255,255,.68); }
.footer-bottom a:hover { color: #fff; }
.police-badge {
  display: inline-block; width: 18px; height: 18px; vertical-align: middle;
  margin-right: 6px; margin-left: 8px; background-size: contain; background-repeat: no-repeat;
  /* 公安备案警徽（盾形+五角星，白描边适配深蓝页脚），内联 SVG data-URI，无外链 */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 2 L20 5 V11 C20 16.5 16.5 20.5 12 22 C7.5 20.5 4 16.5 4 11 V5 Z' fill='none' stroke='%23fff' stroke-width='1.4'/%3E%3Cpath d='M12 6.2 L13.6 10.4 L18 10.9 L14.6 13.6 L15.6 17.9 L12 15.7 L8.4 17.9 L9.4 13.6 L6 10.9 L10.4 10.4 Z' fill='%23fff'/%3E%3C/svg%3E");
}

/* ============================ 解决方案页 ============================ */
.sol-tabs { display: flex; align-items: center; gap: 54px; padding: 34px 0 30px; border-bottom: 1px solid var(--line); }
.sol-tab {
  font-size: 16px; color: #555; cursor: pointer; background: none; border: none;
  font-family: inherit; padding: 0 0 12px; position: relative; letter-spacing: 1px; transition: color .25s;
}
.sol-tab:hover { color: var(--primary); }
.sol-tab.active { color: var(--primary); font-weight: 600; }
.sol-tab.active::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 3px; background: var(--primary); border-radius: 2px; }
.sol-page-head { text-align: center; font-size: 30px; color: var(--ink); font-weight: 700; letter-spacing: 2px; padding: 58px 0 30px; }
.sol-row { display: grid; grid-template-columns: 1fr 1fr; gap: 78px; align-items: center; padding: 52px 0; }
.sol-row + .sol-row { border-top: 1px dashed transparent; }
.sol-row .txt h3 { font-size: 20px; color: #22304a; font-weight: 700; margin-bottom: 22px; }
.sol-row .txt p { font-size: 14px; color: #5b6675; line-height: 2.05; margin-bottom: 14px; }
.sol-row .txt b { color: #303b4f; font-weight: 700; }
.sol-row .txt .lead b { color: #303b4f; }
.sol-row .pic { background: transparent; border: none; box-shadow: none; display: flex; align-items: center; }
.sol-row .pic img { max-width: 100%; width: auto; margin: 0 auto; display: block; }
.sol-empty { text-align: center; padding: 110px 0 130px; color: #98a2b1; }
.sol-empty .icon-ring { width: 88px; height: 88px; margin: 0 auto 26px; border-radius: 50%; border: 1px dashed #c8d2e0; display: flex; align-items: center; justify-content: center; color: var(--primary); }
.sol-empty p { font-size: 15px; letter-spacing: 1px; }

/* ============================ 核心业务页 ============================ */
.bizpage-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; padding-top: 46px; }
.bizpage-card {
  border: 1px solid var(--line); background: #fff; padding: 42px 44px 38px; min-height: 250px;
  display: flex; flex-direction: column; transition: all .35s var(--ease); position: relative; overflow: hidden;
}
.bizpage-card::before {
  content: ""; position: absolute; left: 0; top: 0; width: 0; height: 3px; background: var(--primary);
  transition: width .45s var(--ease);
}
.bizpage-card:hover { box-shadow: var(--shadow-md); transform: translateY(-6px); border-color: transparent; }
.bizpage-card:hover::before { width: 100%; }
.bizpage-card h3 { font-size: 22px; color: #22304a; font-weight: 700; }
.bizpage-card p { font-size: 14px; color: #6b7686; line-height: 2.05; margin-top: 20px; }
.bizpage-card .circle-btn { margin-top: auto; width: 42px; height: 42px; }
.bizpage-card .biz-icon { margin-top: auto; color: #9aa4b2; transition: color .3s var(--ease); }
.bizpage-card:hover .biz-icon { color: var(--primary); }

/* ============================ 关于我们页 ============================ */
.about-head { padding-top: 46px; }
.about-head h1 { font-size: 32px; color: #1c2740; font-weight: 800; letter-spacing: 1px; }
.about-head .en { font-size: 13px; color: #9aa4b2; margin-top: 8px; letter-spacing: .5px; }
.about-body { display: grid; grid-template-columns: 420px 1fr; gap: 70px; margin-top: 52px; align-items: start; }
.about-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 46px 30px; }
.stat .val { color: var(--primary); font-weight: 800; font-size: 42px; line-height: 1; font-family: Arial, "Microsoft YaHei"; }
.stat .val small { font-size: 15px; font-weight: 700; margin-left: 2px; }
.stat .label { font-size: 13.5px; color: #9aa4b2; margin-top: 10px; }
.about-text p { font-size: 14.5px; color: #556072; line-height: 2.2; text-align: justify; }
.about-text p + p { margin-top: 22px; }
.about-cap { display: grid; grid-template-columns: 380px 1fr; gap: 70px; margin-top: 40px; align-items: end; }
.about-cap .building img { width: 100%; }
.about-cap h2 { font-size: 24px; color: #1c2740; font-weight: 700; margin-bottom: 30px; }
.cap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.cap-card {
  border: 1px solid var(--line); background: #fff; min-height: 128px; padding: 26px 24px;
  display: flex; align-items: center; justify-content: center; text-align: center;
  font-size: 16px; color: #2b3648; font-weight: 600; line-height: 1.8; border-radius: 3px;
  transition: all .35s var(--ease); cursor: default;
}
.cap-card:hover { border-color: var(--primary); color: var(--primary); box-shadow: var(--shadow-md); transform: translateY(-5px); }

/* ============================ 新闻列表页 ============================ */
.news-list { padding-top: 40px; }
.news-item {
  display: grid; grid-template-columns: 300px 1fr; gap: 40px; background: #fff;
  padding: 26px; margin-bottom: 26px; border: 1px solid #f0f1f4; transition: all .35s var(--ease);
}
.news-item:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: transparent; }
.news-item .pic { height: 196px; overflow: hidden; }
.news-item .pic img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.news-item:hover .pic img { transform: scale(1.05); }
.news-item .body { display: flex; flex-direction: column; padding: 10px 10px 6px 0; }
.news-item h3 { font-size: 19px; color: var(--ink); font-weight: 700; line-height: 1.55; }
.news-item h3 a:hover { color: var(--primary); }
.news-item .desc { font-size: 13.5px; color: #76808f; line-height: 2; margin-top: 14px;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.news-item .foot { margin-top: auto; display: flex; align-items: center; justify-content: space-between; }
.news-item .view-detail { font-size: 13.5px; color: var(--primary); border-bottom: 1px solid transparent; padding-bottom: 2px; }
.news-item:hover .view-detail { border-color: var(--primary); }

.pagination { display: flex; align-items: center; justify-content: center; gap: 14px; padding: 46px 0 20px; }
.page-btn {
  min-width: 52px; height: 52px; padding: 0 6px; border: none; background: #fff; cursor: pointer;
  font-size: 16px; color: #555; font-family: inherit; box-shadow: var(--shadow-sm);
  display: inline-flex; align-items: center; justify-content: center; transition: all .25s var(--ease);
}
.page-btn:hover { color: var(--primary); }
.page-btn.on { background: #123f8d; color: #fff; }
.page-btn:disabled { color: #c4cad4; cursor: default; }
.page-ellipsis { color: #9aa4b2; letter-spacing: 2px; }

/* ============================ 新闻详情页 ============================ */
.detail-wrap { position: relative; z-index: 3; margin-top: -96px; padding-bottom: 30px; }
.detail-card { background: #fff; box-shadow: var(--shadow-md); padding: 56px 64px 48px; }
.detail-card .breadcrumb { justify-content: flex-start; padding: 0; }
.detail-card h1 { font-size: 28px; color: var(--primary); font-weight: 700; line-height: 1.6; margin-top: 30px; }
.detail-meta { display: flex; gap: 34px; font-size: 13px; color: #9aa4b2; margin-top: 18px; padding-bottom: 26px; border-bottom: 1px solid var(--line); }
.detail-cover { max-width: 820px; margin: 36px auto 10px; }
.detail-cover img { width: 100%; }
.detail-body p { font-size: 14.5px; color: #4a5464; line-height: 2.15; text-align: justify; margin-top: 20px; }
.detail-body h3 { font-size: 18px; color: #22304a; font-weight: 700; margin-top: 34px; }
.detail-body b { color: #2e3950; }
.detail-nav { display: flex; justify-content: space-between; align-items: center; gap: 20px; border-top: 1px solid var(--line); margin-top: 44px; padding-top: 26px; font-size: 14px; color: #9aa4b2; flex-wrap: wrap; }
.detail-nav a { color: var(--primary); }
.detail-nav a:hover { text-decoration: underline; }

/* ============================ 联系我们页 ============================ */
.contact-grid { display: grid; grid-template-columns: 380px 1fr; gap: 60px; padding-top: 30px; }
.contact-left h2 { font-size: 34px; color: #1c2740; font-weight: 800; line-height: 1.45; letter-spacing: 1px; }
.contact-left .hotline { font-size: 18px; color: #333; margin-top: 18px; letter-spacing: .5px; }
.contact-left .rule { width: 210px; height: 1px; background: #2b3648; margin: 34px 0 44px; }
.contact-block { margin-bottom: 40px; }
.contact-block .cb-icon { color: var(--primary); margin-bottom: 12px; }
.contact-block h4 { font-size: 18px; color: var(--primary); font-weight: 700; margin-bottom: 10px; }
.contact-block h4.gray { color: #9aa4b2; }
.contact-block p { font-size: 14px; color: #556072; line-height: 2.1; }
.contact-map img { width: 100%; }

/* ============================ 返回顶部 / 通用动效 ============================ */
.back-top {
  position: fixed; right: 34px; bottom: 40px; z-index: 900; width: 48px; height: 48px;
  border-radius: 50%; background: var(--primary); color: #fff; border: none; cursor: pointer;
  box-shadow: 0 8px 22px rgba(18, 64, 137, .35); opacity: 0; visibility: hidden;
  transform: translateY(14px); transition: all .3s var(--ease);
  display: flex; align-items: center; justify-content: center;
}
.back-top.show { opacity: 1; visibility: visible; transform: none; }
.back-top:hover { background: var(--primary-hover); }

.reveal { opacity: 0; transform: translateY(36px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .1s; } .reveal.d2 { transition-delay: .2s; } .reveal.d3 { transition-delay: .3s; }

/* toast */
.toast {
  position: fixed; left: 50%; bottom: 60px; transform: translate(-50%, 20px); z-index: 3000;
  background: rgba(20, 35, 70, .92); color: #fff; font-size: 14px; padding: 12px 26px;
  border-radius: 30px; opacity: 0; visibility: hidden; transition: all .35s var(--ease);
}
.toast.show { opacity: 1; visibility: visible; transform: translate(-50%, 0); }

/* ============================ 响应式 ============================ */
@media (max-width: 1500px) {
  :root { --container: 1320px; }
  .hero-inner h1 { font-size: 52px; }
  .banner-title-en { font-size: 54px; }
  .main-nav a { padding: 0 24px; }
}
@media (max-width: 1200px) {
  :root { --container: 100%; }
  .container { padding: 0 36px; }
  .main-nav a { padding: 0 16px; font-size: 14px; }
  .biz-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .about-body, .about-cap, .contact-grid { grid-template-columns: 1fr; gap: 44px; }
  .about-cap .building { max-width: 480px; }
  .sol-row { gap: 44px; }
}
@media (max-width: 900px) {
  .main-nav {
    position: fixed; top: var(--header-h); left: 0; right: 0; background: #fff;
    flex-direction: column; align-items: stretch; height: auto; padding: 10px 0;
    box-shadow: 0 20px 30px rgba(20,40,90,.12); display: none;
  }
  .main-nav.open { display: flex; }
  .main-nav a { height: 52px; padding: 0 36px; }
  .main-nav a.active::after { display: none; }
  .burger { display: flex; }
  .hero-inner h1 { font-size: 36px; }
  .hero-inner p { font-size: 15px; letter-spacing: 3px; }
  .hero { height: 520px; }
  .banner-title-en { font-size: 38px; }
  .banner-title-cn { font-size: 22px; letter-spacing: 3px; }
  .page-banner { height: 320px; }
  .news-featured { grid-template-columns: 1fr; }
  .news-featured .body { padding: 30px; }
  .news-grid { grid-template-columns: 1fr; }
  .biz-grid, .bizpage-grid, .cap-grid { grid-template-columns: 1fr; }
  .sol-row { grid-template-columns: 1fr; gap: 30px; }
  .sol-row .pic { order: -1; }
  .news-item { grid-template-columns: 1fr; }
  .news-item .pic { height: 210px; }
  .detail-card { padding: 34px 26px; }
  .footer-main { grid-template-columns: 1fr; gap: 34px; }
  .cert-item.pos-left { left: 6%; } .cert-item.pos-right { left: 94%; }
  .cert-arrow.prev { left: 10px; } .cert-arrow.next { right: 10px; }
  .quote-mark { display: none; }
  .biz-intro { padding-right: 0; }
  .section { padding: 56px 0; }
  .contact-left h2 { font-size: 26px; }
  .cert-carousel { height: 420px; }
  .cert-item img { max-height: 320px; max-width: 70vw; }
  .cert-arrow.prev { left: 14px; }
  .cert-arrow.next { right: 14px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 6px; padding-top: 18px; }
}

/* ============================ 教育行业解决方案页 ============================ */
.edu-head { text-align: center; padding: 58px 0 10px; }
.edu-head h2 { font-size: 30px; color: var(--ink); font-weight: 700; letter-spacing: 2px; }
.edu-head .en { font-size: 13px; color: var(--text-light); letter-spacing: 1px; margin-top: 10px; text-transform: uppercase; }

.edu-block { padding: 46px 0; border-bottom: 1px dashed var(--line); }
.edu-block:last-of-type { border-bottom: none; }
.edu-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
}
.edu-row.reverse .txt { order: 2; }
.edu-row.reverse .pic { order: 1; }

.edu-row .txt h3 {
  font-size: 21px; color: var(--ink); font-weight: 700; margin-bottom: 20px;
  padding-left: 14px; border-left: 4px solid var(--primary); line-height: 1.5;
}
.edu-row .txt p { font-size: 14px; color: #5b6675; line-height: 2.05; margin-bottom: 14px; }
.edu-row .txt p:last-child { margin-bottom: 0; }
.edu-row .txt .lead { color: #3f4a5c; }

.edu-row .pic {
  background: transparent; border: none; border-radius: 0; padding: 0;
  display: flex; align-items: center; justify-content: center;
}
.edu-row .pic img { width: 100%; height: auto; display: block; }

.edu-list { margin-top: 18px; }
.edu-list li {
  position: relative; padding-left: 18px; font-size: 13.5px;
  color: #5b6675; line-height: 2.0; list-style: none;
}
.edu-list li::before {
  content: ""; position: absolute; left: 0; top: 13px;
  width: 6px; height: 6px; border-radius: 50%; background: var(--primary);
}

.edu-sub { margin-top: 26px; }
.edu-sub h4 {
  font-size: 15px; color: var(--primary); font-weight: 700;
  margin-bottom: 12px; letter-spacing: .5px;
}

.edu-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 22px; }
.edu-card {
  background: var(--card-gray); border: 1px solid var(--line); border-radius: 4px;
  padding: 24px 20px; text-align: center; transition: all .3s var(--ease);
}
.edu-card:hover { border-color: var(--primary); box-shadow: var(--shadow-md); transform: translateY(-5px); }
.edu-card h5 { font-size: 15px; color: var(--ink); font-weight: 700; margin-bottom: 8px; }
.edu-card span { font-size: 12.5px; color: var(--text-light); line-height: 1.8; display: block; }

.edu-cta {
  margin: 60px 0 20px; padding: 44px 40px; background: var(--bg-gray);
  border: 1px solid var(--line); border-radius: 4px; text-align: center;
}
.edu-cta h3 { font-size: 22px; color: var(--ink); font-weight: 700; margin-bottom: 14px; }
.edu-cta p { font-size: 14px; color: #5b6675; line-height: 2.0; margin-bottom: 24px; }
.edu-cta .tel {
  display: inline-block; font-size: 26px; font-weight: 700; color: var(--primary);
  font-family: Arial, "Microsoft YaHei"; letter-spacing: 1px;
}
.edu-cta .tel small { font-size: 14px; font-weight: 400; color: var(--text); margin-left: 10px; letter-spacing: 0; }

@media (max-width: 1200px) {
  .edu-row { gap: 40px; }
  .edu-cards { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .edu-row { grid-template-columns: 1fr; gap: 28px; }
  .edu-row.reverse .txt { order: 1; }
  .edu-row.reverse .pic { order: 2; }
  .edu-cards { grid-template-columns: 1fr; }
  .edu-block { padding: 32px 0; }
  .edu-cta { padding: 32px 22px; }
}