/* hliang.site 企业 IT 服务官网样式 —— 复刻 sosgl 企业站风格 */
:root {
  --blue: #1565c0;          /* 主色：企业蓝 */
  --blue-dark: #0d47a1;
  --blue-light: #e3f2fd;
  --dark: #1a2332;          /* 深色区块 */
  --dark-2: #22304a;
  --text: #333;
  --muted: #666;
  --border: #e5e7eb;
  --bg: #fff;
  --bg-soft: #f5f7fa;
  --ok: #2e7d32;
  --accent: #f57c00;        /* 强调橙 */
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text); background: var(--bg); line-height: 1.7;
}
a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--blue-dark); }
img { max-width: 100%; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== 顶部信息条 ===== */
.topbar {
  background: var(--dark); color: #cfe0f5; font-size: 13px;
  padding: 8px 0;
}
.topbar .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.topbar-phone { color: #fff; font-weight: 600; font-size: 15px; }
.topbar-phone i { font-style: normal; color: var(--accent); margin-right: 6px; }

/* ===== 导航 ===== */
.navbar {
  background: #fff; border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 100; box-shadow: 0 1px 4px rgba(0,0,0,.04);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-logo {
  width: 40px; height: 40px; border-radius: 8px;
  background: linear-gradient(135deg, var(--blue), var(--blue-dark));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 800; font-size: 18px;
}
.brand-name { font-size: 20px; font-weight: 800; color: var(--dark); letter-spacing: .5px; }
.brand-name small { display: block; font-size: 11px; font-weight: 400; color: var(--muted); letter-spacing: 1px; }
.nav-links { list-style: none; display: flex; gap: 6px; align-items: center; }
.nav-links a {
  color: var(--text); font-size: 15px; font-weight: 500;
  padding: 8px 14px; border-radius: 6px; transition: all .15s;
}
.nav-links a:hover { color: var(--blue); background: var(--blue-light); }
.nav-links a.active { color: var(--blue); background: var(--blue-light); font-weight: 600; }
.nav-cta { margin-left: 8px; }
.nav-toggle { display: none; background: none; border: none; font-size: 24px; cursor: pointer; color: var(--dark); }

/* ===== 轮播/Hero ===== */
.hero {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 60%, #2b3f63 100%);
  color: #fff; padding: 70px 0; position: relative; overflow: hidden;
}
.hero::after {
  content: ''; position: absolute; right: -80px; top: -80px; width: 380px; height: 380px;
  background: radial-gradient(circle, rgba(21,101,192,.35), transparent 70%);
}
.hero .container { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: center; position: relative; z-index: 2; }
.hero-badge {
  display: inline-block; font-size: 13px; font-weight: 600;
  background: rgba(21,101,192,.25); color: #9cc3f0;
  border: 1px solid rgba(21,101,192,.5); border-radius: 20px; padding: 4px 14px; margin-bottom: 20px;
}
.hero-title { font-size: 40px; font-weight: 800; line-height: 1.25; letter-spacing: -1px; }
.hero-title .accent { color: #ffb74d; }
.hero-sub { color: #c9d6ea; font-size: 16px; margin-top: 18px; max-width: 560px; }
.hero-cta { margin-top: 30px; display: flex; gap: 14px; flex-wrap: wrap; }
.hero-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.hero-card {
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12);
  border-radius: 12px; padding: 20px; backdrop-filter: blur(4px);
}
.hero-card-num { font-size: 30px; font-weight: 800; color: #ffb74d; font-family: inherit; }
.hero-card-label { color: #c9d6ea; font-size: 14px; margin-top: 4px; }

/* ===== 按钮 ===== */
.btn {
  display: inline-block; padding: 11px 28px; border-radius: 6px; font-size: 15px; font-weight: 600;
  cursor: pointer; border: 1px solid transparent; transition: all .15s; text-align: center;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-dark); color: #fff; }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: #e65100; color: #fff; }
.btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.4); }
.btn-ghost:hover { border-color: #fff; color: #fff; }
.btn-outline { background: transparent; color: var(--blue); border-color: var(--blue); }
.btn-outline:hover { background: var(--blue); color: #fff; }

/* ===== 区块通用 ===== */
.section { padding: 60px 0; }
.section.soft { background: var(--bg-soft); }
.section-head { text-align: center; margin-bottom: 44px; }
.section-head .cn { font-size: 30px; font-weight: 800; color: var(--dark); }
.section-head .en { font-size: 13px; color: var(--muted); letter-spacing: 3px; text-transform: uppercase; margin-top: 6px; }
.section-head .line { width: 48px; height: 3px; background: var(--accent); margin: 14px auto 0; border-radius: 2px; }
.section-head p { color: var(--muted); max-width: 640px; margin: 16px auto 0; font-size: 15px; }

/* ===== 服务网格 ===== */
.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.service-card {
  background: #fff; border: 1px solid var(--border); border-radius: 10px;
  padding: 28px 22px; text-align: center; transition: all .2s;
}
.service-card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(21,101,192,.1); border-color: var(--blue); }
.service-icon {
  width: 60px; height: 60px; margin: 0 auto 16px; border-radius: 50%;
  background: var(--blue-light); color: var(--blue);
  display: flex; align-items: center; justify-content: center; font-size: 26px;
}
.service-card h3 { font-size: 17px; color: var(--dark); margin-bottom: 8px; }
.service-card p { font-size: 13px; color: var(--muted); }

/* ===== 我们能做什么 ===== */
.what-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.what-item {
  background: var(--dark); color: #cfe0f5; border-radius: 10px; padding: 26px;
  border-left: 3px solid var(--accent);
}
.what-item h3 { color: #fff; font-size: 17px; margin-bottom: 10px; }
.what-item p { font-size: 14px; color: #aebfd8; line-height: 1.8; }

/* ===== 一站式服务 ===== */
.one-stop-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.one-stop-item {
  background: #fff; border: 1px solid var(--border); border-radius: 10px;
  padding: 26px; transition: box-shadow .2s;
}
.one-stop-item:hover { box-shadow: 0 6px 20px rgba(0,0,0,.07); }
.one-stop-item .num { font-size: 13px; color: var(--accent); font-weight: 700; }
.one-stop-item h3 { font-size: 17px; color: var(--dark); margin: 6px 0 10px; }
.one-stop-item p { font-size: 14px; color: var(--muted); }

/* ===== 优势 ===== */
.adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.adv-card { background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 28px 22px; text-align: center; }
.adv-num { font-size: 34px; font-weight: 800; color: var(--blue); }
.adv-num span { font-size: 18px; }
.adv-label { font-size: 15px; font-weight: 600; color: var(--dark); margin-top: 6px; }
.adv-desc { font-size: 13px; color: var(--muted); margin-top: 8px; }

/* ===== 原因/特色 ===== */
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.why-item { background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 24px; }
.why-item h3 { font-size: 16px; color: var(--dark); margin-bottom: 8px; }
.why-item h3::before { content: '✓ '; color: var(--ok); }
.why-item p { font-size: 14px; color: var(--muted); }

/* ===== 新闻 ===== */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.news-card { background: #fff; border: 1px solid var(--border); border-radius: 10px; overflow: hidden; transition: all .2s; }
.news-card:hover { box-shadow: 0 8px 24px rgba(0,0,0,.08); transform: translateY(-3px); }
.news-body { padding: 20px; }
.news-date { font-size: 12px; color: var(--accent); font-weight: 600; }
.news-body h3 { font-size: 16px; color: var(--dark); margin: 6px 0 8px; line-height: 1.5; height: 48px; overflow: hidden; }
.news-body p { font-size: 13px; color: var(--muted); height: 40px; overflow: hidden; }
.more-link { text-align: center; margin-top: 30px; }

/* ===== 页脚 ===== */
.footer { background: var(--dark); color: #aebfd8; padding: 50px 0 0; font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; padding-bottom: 40px; }
.footer h4 { color: #fff; font-size: 16px; margin-bottom: 16px; }
.footer-brand .brand-name { color: #fff; }
.footer-brand p { margin-top: 14px; line-height: 1.8; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: #aebfd8; }
.footer-links a:hover { color: #fff; }
.footer-contact p { margin-bottom: 10px; }
.footer-contact .label { color: #7d8fb0; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1); padding: 16px 0;
  text-align: center; font-size: 13px; color: #7d8fb0;
}

/* ===== 页头（内页） ===== */
.page-banner {
  background: linear-gradient(135deg, var(--dark), var(--dark-2));
  color: #fff; padding: 48px 0; text-align: center;
}
.page-banner h1 { font-size: 30px; font-weight: 800; }
.page-banner .crumb { font-size: 13px; color: #9cc3f0; margin-top: 10px; }
.page-banner .crumb a { color: #cfe0f5; }

/* ===== 卡片网格（博客/项目） ===== */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 20px; }
.card {
  background: #fff; border: 1px solid var(--border); border-radius: 10px;
  padding: 24px; text-decoration: none; color: var(--text);
  transition: all .2s; display: flex; flex-direction: column; gap: 8px;
}
a.card:hover { border-color: var(--blue); box-shadow: 0 6px 20px rgba(21,101,192,.1); transform: translateY(-3px); }
.card-tag {
  align-self: flex-start; font-size: 12px; font-weight: 600;
  background: var(--blue-light); color: var(--blue);
  padding: 3px 12px; border-radius: 20px;
}
.card-title { font-size: 18px; font-weight: 700; color: var(--dark); }
.card-summary { color: var(--muted); font-size: 14px; flex: 1; }
.card-date { color: #999; font-size: 13px; }
.card-tech { font-size: 13px; color: var(--ok); }
.card-link { color: var(--blue); font-weight: 600; }

/* ===== 文章详情 ===== */
.article { max-width: 820px; margin: 0 auto; }
.article-meta { display: flex; gap: 14px; color: #999; font-size: 14px; margin-bottom: 20px; }
.article-title { font-size: 32px; font-weight: 800; color: var(--dark); margin-bottom: 12px; }
.article-summary { color: var(--muted); border-left: 3px solid var(--blue); padding-left: 16px; margin-bottom: 28px; font-size: 15px; }
.article-content { color: #444; font-size: 15px; }
.article-content h1, .article-content h2, .article-content h3 { color: var(--dark); margin: 28px 0 12px; }
.article-content h2 { font-size: 24px; border-bottom: 1px solid var(--border); padding-bottom: 8px; }
.article-content p { margin: 14px 0; }
.article-content li { margin: 6px 0 6px 22px; }
.article-content code {
  font-family: "SF Mono", Consolas, monospace; font-size: 13px;
  background: var(--bg-soft); padding: 2px 6px; border-radius: 4px; color: #c7254e;
}
.article-content pre {
  background: var(--dark); color: #e6edf3; border-radius: 8px; padding: 16px;
  overflow-x: auto; margin: 18px 0;
}
.article-content pre code { background: none; padding: 0; color: inherit; }
.article-content blockquote { border-left: 3px solid var(--blue); padding: 4px 16px; color: var(--muted); margin: 16px 0; background: var(--bg-soft); }
.article-content table { width: 100%; border-collapse: collapse; margin: 16px 0; }
.article-content th, .article-content td { border: 1px solid var(--border); padding: 8px 12px; text-align: left; }
.article-content th { background: var(--bg-soft); }

/* ===== 表单/留言 ===== */
.message-form { margin-bottom: 32px; padding: 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 12px; }
input, textarea {
  width: 100%; padding: 11px 14px; border: 1px solid var(--border); border-radius: 6px;
  font-size: 15px; font-family: inherit; background: var(--bg-soft); color: var(--text);
  transition: border-color .15s;
}
input:focus, textarea:focus { outline: none; border-color: var(--blue); background: #fff; }
textarea { resize: vertical; }
.message-list { display: flex; flex-direction: column; gap: 16px; }
.message-item { background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 20px 24px; }
.message-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.message-head strong { color: var(--blue); }
.message-content { color: var(--text); }
.message-reply { margin-top: 12px; background: var(--bg-soft); border-radius: 6px; padding: 10px 14px; color: var(--muted); font-size: 14px; }
.message-reply::before { content: '↳ '; color: var(--ok); }

/* ===== Flash ===== */
.flash { padding: 12px 18px; border-radius: 6px; margin-bottom: 20px; font-size: 14px; font-weight: 500; }
.flash-success { background: #e8f5e9; color: var(--ok); border: 1px solid #a5d6a7; }
.flash-error { background: #ffebee; color: #c62828; border: 1px solid #ef9a9a; }

/* ===== 空态 ===== */
.empty { text-align: center; color: #999; padding: 40px 0; background: #fff; border: 1px dashed var(--border); border-radius: 10px; }

/* ===== 相册 ===== */
.photo-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.photo-figure { background: #fff; border: 1px solid var(--border); border-radius: 10px; overflow: hidden; margin: 0; }
.photo-figure img { width: 100%; height: 190px; object-fit: cover; display: block; transition: transform .2s; }
.photo-figure:hover img { transform: scale(1.03); }
.photo-figure figcaption { padding: 12px 14px; font-size: 13px; color: var(--muted); }
.photo-figure figcaption strong { display: block; color: var(--dark); font-size: 14px; }

/* ===== 响应式 ===== */
@media (max-width: 992px) {
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .what-grid, .one-stop-grid, .why-grid, .news-grid { grid-template-columns: repeat(2, 1fr); }
  .adv-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero .container { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none; position: absolute; top: 68px; left: 0; right: 0;
    background: #fff; flex-direction: column; padding: 10px 24px 20px;
    border-bottom: 1px solid var(--border); box-shadow: 0 8px 20px rgba(0,0,0,.08);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 0; border-bottom: 1px solid var(--bg-soft); }
  .service-grid, .what-grid, .one-stop-grid, .why-grid, .news-grid, .adv-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-title { font-size: 30px; }
  .form-row { grid-template-columns: 1fr; }
  .hero-cards { grid-template-columns: 1fr 1fr; }
}