/* ==========================================================================
   潍坊启晖广告文化传媒有限公司 官网样式
   配色：深蓝（专业）+ 启晖金（品牌名"晖"→晨光意象）
   说明：所有颜色通过 CSS 自定义变量统一管理，便于后期换肤
   ========================================================================== */

:root {
  --c-primary: #14213d;        /* 主色：深藏蓝 */
  --c-primary-light: #1f3460;  /* 主色亮阶 */
  --c-accent: #f5a623;         /* 品牌强调色：启晖金 */
  --c-accent-dark: #d98b0a;    /* 强调色深阶（hover 用） */
  --c-bg: #ffffff;
  --c-bg-soft: #f6f8fb;        /* 浅灰蓝底 */
  --c-text: #24303f;
  --c-text-light: #5b6b7c;
  --c-border: #e4e9f0;
  --radius: 10px;
  --shadow: 0 6px 24px rgba(20, 33, 61, 0.08);
  --shadow-hover: 0 12px 32px rgba(20, 33, 61, 0.14);
  --maxw: 1180px;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Segoe UI", sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

/* ---------- 通用布局 ---------- */
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

.section { padding: 72px 0; }
.section--soft { background: var(--c-bg-soft); }

.section-head { text-align: center; max-width: 720px; margin: 0 auto 48px; }
.section-head .kicker {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--c-accent-dark);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.section-head h2 { font-size: 30px; color: var(--c-primary); line-height: 1.4; }
.section-head p { color: var(--c-text-light); margin-top: 12px; font-size: 15px; }

/* 占位提示样式：内容待提供处统一标注 */
.placeholder-note {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 4px;
  background: #fff4e0;
  color: #b06a00;
  font-size: 12px;
  border: 1px dashed var(--c-accent);
}

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--c-border);
}
.site-header .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.logo { display: flex; align-items: center; gap: 10px; font-size: 19px; font-weight: 700; color: var(--c-primary); }
.logo .mark {
  width: 36px; height: 36px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-light) 60%, var(--c-accent) 100%);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 17px;
  flex: none;
}
.logo small { display: block; font-size: 11px; font-weight: 400; color: var(--c-text-light); line-height: 1.2; }

.nav { display: flex; align-items: center; gap: 30px; }
.nav a { font-size: 15px; color: var(--c-text); position: relative; padding: 4px 0; }
.nav a:hover, .nav a.active { color: var(--c-primary); font-weight: 600; }
.nav a.active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -4px;
  height: 3px;
  border-radius: 2px;
  background: var(--c-accent);
}

.nav-toggle { display: none; border: none; background: none; cursor: pointer; padding: 8px; }
.nav-toggle svg { width: 24px; height: 24px; stroke: var(--c-primary); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 26px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
}
.btn--primary { background: var(--c-accent); color: #fff; }
.btn--primary:hover { background: var(--c-accent-dark); transform: translateY(-1px); }
.btn--ghost { border-color: var(--c-primary); color: var(--c-primary); }
.btn--ghost:hover { background: var(--c-primary); color: #fff; }
.btn--lg { padding: 14px 34px; font-size: 16px; }

/* ---------- 首屏 Hero ---------- */
.hero {
  background:
    radial-gradient(1100px 480px at 85% -10%, rgba(245, 166, 35, 0.16), transparent 60%),
    linear-gradient(160deg, #101c36 0%, #16264a 55%, #1c2f5c 100%);
  color: #fff;
  padding: 96px 0 88px;
  overflow: hidden;
}
.hero .inner { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 56px; align-items: center; }
.hero h1 { font-size: 40px; line-height: 1.35; letter-spacing: 1px; }
.hero h1 .accent { color: var(--c-accent); }
.hero .sub { margin-top: 18px; font-size: 16px; color: rgba(255, 255, 255, 0.82); max-width: 560px; }
.hero .cta-row { margin-top: 34px; display: flex; gap: 16px; flex-wrap: wrap; }
.hero .meta { margin-top: 26px; font-size: 13px; color: rgba(255, 255, 255, 0.62); }

.hero-visual {
  position: relative;
  height: 340px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: rgba(255, 255, 255, 0.75);
  font-size: 14px;
  text-align: center;
  padding: 20px;
}

/* ---------- 数据亮点条 ---------- */
.stats-band { background: var(--c-primary); color: #fff; padding: 34px 0; }
.stats-band .inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}
.stats-band .num { font-size: 34px; font-weight: 700; color: var(--c-accent); line-height: 1.2; }
.stats-band .label { font-size: 14px; color: rgba(255, 255, 255, 0.8); margin-top: 4px; }

/* 重点业务角标 */
.tag-hot {
  display: inline-block;
  vertical-align: 6px;
  margin-left: 10px;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--c-accent);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
}

/* ---------- 服务卡片矩阵 ---------- */
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.service-card {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 28px 26px;
  box-shadow: var(--shadow);
  transition: all 0.25s ease;
  display: block;
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: var(--c-accent); }
.service-card .more { display: inline-block; margin-top: 14px; font-size: 13.5px; font-weight: 600; color: var(--c-accent-dark); }
.service-card:hover .more { text-decoration: underline; }
.service-card .icon { font-size: 30px; line-height: 1; }
.service-card h3 { margin-top: 14px; font-size: 18px; color: var(--c-primary); }
.service-card p { margin-top: 8px; font-size: 14px; color: var(--c-text-light); }
.service-card .more { display: inline-block; margin-top: 14px; font-size: 13px; color: var(--c-accent-dark); font-weight: 600; }

/* ---------- 问答速览（Accordion） ---------- */
.qa-list { max-width: 860px; margin: 0 auto; }
.qa-item { border: 1px solid var(--c-border); border-radius: var(--radius); background: var(--c-bg); margin-bottom: 14px; overflow: hidden; }
.qa-item .q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  font-size: 16px;
  font-weight: 600;
  color: var(--c-primary);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
}
.qa-item .q .arrow { flex: none; transition: transform 0.25s ease; color: var(--c-accent-dark); }
.qa-item.open .q .arrow { transform: rotate(180deg); }
.qa-item .a { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.qa-item .a .body { padding: 0 22px 18px; font-size: 14.5px; color: var(--c-text-light); }
.qa-item.open .a { max-height: 320px; }

/* ---------- 案例/资讯卡片 ---------- */
.post-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.post-card {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all 0.25s ease;
  display: flex;
  flex-direction: column;
}
.post-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.post-card .thumb {
  height: 170px;
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-light) 100%);
  color: rgba(255, 255, 255, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  text-align: center;
  padding: 16px;
}
.post-card .body { padding: 20px 22px; flex: 1; display: flex; flex-direction: column; }
.post-card .tag { font-size: 12px; color: var(--c-accent-dark); font-weight: 600; }
.post-card h3 { margin-top: 6px; font-size: 16.5px; color: var(--c-primary); line-height: 1.5; }
.post-card p { margin-top: 8px; font-size: 13.5px; color: var(--c-text-light); flex: 1; }
.post-card .date { margin-top: 12px; font-size: 12px; color: #9aa7b5; }

/* 列表页分类筛选 */
.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 36px; }
.filter-bar .chip {
  padding: 8px 18px;
  border-radius: 999px;
  border: 1px solid var(--c-border);
  background: var(--c-bg);
  color: var(--c-text-light);
  font-size: 14px;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.2s ease;
}
.filter-bar .chip:hover { border-color: var(--c-accent); color: var(--c-primary); }
.filter-bar .chip.active { background: var(--c-primary); border-color: var(--c-primary); color: #fff; }
.post-card[hidden] { display: none; }

/* 待确认草稿横幅：案例正文等需人工确认的内容页顶部显示 */
.draft-banner {
  max-width: 800px;
  margin: 24px auto 0;
  padding: 12px 18px;
  border-radius: 8px;
  background: #fff4e0;
  border: 1px dashed var(--c-accent);
  color: #b06a00;
  font-size: 13.5px;
}

/* ---------- 案例效果数据（浅色版数据条） ---------- */
.result-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin: 22px 0 18px;
}
.result-stats .item {
  background: var(--c-bg-soft);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 20px 12px;
  text-align: center;
}
.result-stats .num { font-size: 27px; font-weight: 700; color: var(--c-primary); line-height: 1.15; }
.result-stats .num em { font-style: normal; color: var(--c-accent-dark); font-size: 0.72em; margin-left: 2px; }
.result-stats .label { font-size: 13px; color: var(--c-text-light); margin-top: 8px; }
@media (max-width: 700px) {
  .result-stats { grid-template-columns: repeat(2, 1fr); }
  .result-stats .num { font-size: 24px; }
}

/* 案例详情页图片陈列 */
.case-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 18px 0 8px;
}
.case-gallery img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--c-border);
}
@media (max-width: 700px) {
  .case-gallery { grid-template-columns: 1fr; }
  .case-gallery img { height: 200px; }
}

/* 响应式视频容器 */
.video-wrap {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 */
  border-radius: var(--radius);
  overflow: hidden;
  background: #000;
  margin: 20px 0;
}
.video-wrap video,
.video-wrap iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 页面横幅（子页通用） ---------- */
.page-banner {
  background:
    radial-gradient(800px 300px at 80% -20%, rgba(245, 166, 35, 0.18), transparent 60%),
    linear-gradient(150deg, #101c36 0%, #1a2a52 100%);
  color: #fff;
  padding: 60px 0;
  text-align: center;
}
.page-banner h1 { font-size: 30px; }
.page-banner p { margin-top: 10px; color: rgba(255, 255, 255, 0.75); font-size: 15px; }

/* ---------- 正文排版（关于/资讯详情等） ---------- */
.prose { max-width: 800px; margin: 0 auto; }
.prose h2 { font-size: 22px; color: var(--c-primary); margin: 36px 0 14px; }
.prose h3 { font-size: 18px; color: var(--c-primary); margin: 26px 0 10px; }
.prose p { margin: 12px 0; color: var(--c-text); font-size: 15px; }
.prose ul { margin: 12px 0; padding-left: 4px; }
.prose ul li { position: relative; padding-left: 22px; margin: 8px 0; font-size: 15px; }
.prose ul li::before {
  content: "";
  position: absolute;
  left: 4px; top: 11px;
  width: 8px; height: 8px;
  border-radius: 2px;
  background: var(--c-accent);
}

/* 正文内对比表格与重点提示 */
.prose table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14.5px; }
.prose th, .prose td { border: 1px solid var(--c-border); padding: 11px 14px; text-align: left; vertical-align: top; }
.prose th { background: var(--c-bg-soft); color: var(--c-primary); font-weight: 600; }
.prose td:first-child { color: var(--c-primary); font-weight: 600; }
.prose .tip {
  background: #fff8ec;
  border-left: 3px solid var(--c-accent);
  border-radius: 6px;
  padding: 14px 18px;
  margin: 18px 0;
  color: var(--c-text);
  font-size: 14.5px;
}
@media (max-width: 700px) {
  .prose table { font-size: 13px; }
  .prose th, .prose td { padding: 8px 10px; }
}

/* ---------- 套餐报价表 ---------- */
.pricing-table-wrap { overflow-x: auto; margin: 20px 0; -webkit-overflow-scrolling: touch; }
.pricing-table {
  min-width: 760px;
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.pricing-table th, .pricing-table td {
  border: 1px solid var(--c-border);
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
}
.pricing-table thead th {
  background: var(--c-primary);
  color: #fff;
  font-weight: 600;
}
.pricing-table thead th:first-child { background: #122044; }
.pricing-table tbody tr:nth-child(even) { background: var(--c-bg-soft); }
.pricing-table td:first-child, .pricing-table th:first-child {
  color: var(--c-primary);
  font-weight: 600;
  width: 120px;
  white-space: nowrap;
}
.pricing-table .price { color: var(--c-accent); font-weight: 700; font-size: 15px; }

/* ---------- 联系表单 ---------- */
.contact-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.form-card, .info-card {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 32px;
}
.form-card h3, .info-card h3 { font-size: 19px; color: var(--c-primary); margin-bottom: 18px; }
.form-row { margin-bottom: 16px; }
.form-row label { display: block; font-size: 13.5px; font-weight: 600; color: var(--c-primary); margin-bottom: 6px; }
.form-row input, .form-row select, .form-row textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--c-border);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  color: var(--c-text);
  background: var(--c-bg);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
  outline: none;
  border-color: var(--c-accent);
  box-shadow: 0 0 0 3px rgba(245, 166, 35, 0.18);
}
.info-list li { display: flex; gap: 12px; margin: 14px 0; font-size: 14.5px; }
.info-list .k { flex: none; width: 84px; color: var(--c-text-light); }
.info-list .v { color: var(--c-text); font-weight: 600; }

/* ---------- CTA 横条 ---------- */
.cta-band {
  background: linear-gradient(120deg, #14213d 0%, #1f3460 100%);
  color: #fff;
  padding: 56px 0;
  text-align: center;
}
.cta-band h2 { font-size: 26px; }
.cta-band p { margin-top: 10px; color: rgba(255, 255, 255, 0.75); font-size: 15px; }
.cta-band .btn { margin-top: 24px; }

/* ---------- 页脚 ---------- */
.site-footer { background: #0d1729; color: rgba(255, 255, 255, 0.72); padding: 56px 0 0; font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr; gap: 36px; padding-bottom: 40px; }
.site-footer h4 { color: #fff; font-size: 15px; margin-bottom: 16px; }
.site-footer a:hover { color: var(--c-accent); }
.footer-links li { margin: 9px 0; }
.footer-about .logo { color: #fff; margin-bottom: 14px; }
.footer-about .logo small { color: rgba(255, 255, 255, 0.55); }
.footer-about p { line-height: 1.8; font-size: 13.5px; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 18px 0;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.5);
}

/* ---------- 移动端适配 ---------- */
@media (max-width: 960px) {
  .geo-feature { grid-template-columns: 1fr !important; }
  .hero .inner { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .card-grid, .post-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-band .inner { grid-template-columns: repeat(2, 1fr); }
  .contact-wrap { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 680px) {
  .nav {
    position: absolute;
    top: 68px; left: 0; right: 0;
    background: #fff;
    border-bottom: 1px solid var(--c-border);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0 24px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }
  .nav.open { max-height: 420px; }
  .nav a { padding: 14px 0; border-top: 1px solid var(--c-border); }
  .nav .btn { margin: 14px 0; }
  .nav-toggle { display: block; }
  .card-grid, .post-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 28px; }
  .section { padding: 52px 0; }
  .section-head h2 { font-size: 24px; }
}