/* =========================================================
   诺联自动化维修 · 站点样式
   风格：灰白基底 + 深蓝点缀，专业、克制、信息密度高
   ========================================================= */

:root {
  --brand: #0b3b8c;
  --brand-600: #1350b4;
  --brand-500: #1a6fd4;
  --brand-100: #e8f0fd;
  --brand-50: #f3f7fe;
  --ink: #0f172a;
  --ink-2: #263349;
  --muted: #5b6b80;
  --muted-2: #8794a6;
  --line: #e3e8f0;
  --line-2: #eef1f6;
  --bg: #f5f7fb;
  --surface: #ffffff;
  --teal: #0e8f8f;
  --amber: #b7791f;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .05), 0 2px 8px rgba(15, 23, 42, .04);
  --shadow: 0 4px 12px rgba(15, 23, 42, .06), 0 12px 32px rgba(15, 23, 42, .07);
  --shadow-lg: 0 18px 50px rgba(11, 59, 140, .16);
  --wrap: 1200px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-2);
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--brand-600); text-decoration: none; }
a:hover { color: var(--brand-500); }
h1, h2, h3, h4 { color: var(--ink); line-height: 1.35; margin: 0; font-weight: 700; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 12px; top: -60px; z-index: 999; background: var(--ink);
  color: #fff; padding: 10px 16px; border-radius: 8px; transition: top .2s;
}
.skip-link:focus { top: 12px; color: #fff; }

/* ---------------- 按钮 ---------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 46px; padding: 0 22px; border-radius: 999px; border: 1px solid transparent;
  font-size: 15px; font-weight: 600; cursor: pointer; white-space: nowrap;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-sm { height: 38px; padding: 0 16px; font-size: 13.5px; }
.btn-lg { height: 52px; padding: 0 30px; font-size: 16px; }
.btn-block { width: 100%; }
.btn-primary { background: linear-gradient(135deg, var(--brand-600), var(--brand)); color: #fff; box-shadow: 0 6px 18px rgba(11, 59, 140, .24); }
.btn-primary:hover { color: #fff; box-shadow: 0 10px 26px rgba(11, 59, 140, .3); }
.btn-outline { border-color: var(--line); background: #fff; color: var(--ink-2); }
.btn-outline:hover { border-color: var(--brand-500); color: var(--brand); background: var(--brand-50); }
.btn-light { background: #fff; color: var(--brand); }
.btn-light:hover { color: var(--brand-600); box-shadow: 0 10px 26px rgba(0, 0, 0, .18); }
.btn-ghost { border-color: rgba(255, 255, 255, .38); color: #fff; background: rgba(255, 255, 255, .06); }
.btn-ghost:hover { color: #fff; background: rgba(255, 255, 255, .16); border-color: rgba(255, 255, 255, .6); }

/* ---------------- 顶部信息条 ---------------- */
.topbar {
  background: #0a2a63; color: rgba(255, 255, 255, .82);
  font-size: 13px; height: 38px; display: flex; align-items: center;
}
.topbar-in { display: flex; align-items: center; justify-content: space-between; }
.topbar-right { display: flex; align-items: center; gap: 22px; }
.tb-time { color: rgba(255, 255, 255, .62); }
.tb-tel { color: #fff; font-weight: 600; display: inline-flex; align-items: center; gap: 6px; }
.tb-tel:hover { color: #9cc7ff; }

/* ---------------- 头部 ---------------- */
.site-header {
  position: sticky; top: 0; z-index: 90; background: rgba(255, 255, 255, .96);
  border-bottom: 1px solid var(--line); backdrop-filter: saturate(180%) blur(10px);
}
.header-in { display: flex; align-items: center; gap: 18px; height: 76px; min-width: 0; }
.brand { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.brand-mark { display: inline-flex; }
.brand-mark img { display: block; height: 42px; width: auto; object-fit: contain; }
.brand-text { display: flex; flex-direction: column; line-height: 1.2; white-space: nowrap; }
.brand-text strong { font-size: 19px; color: var(--ink); letter-spacing: .5px; }
.brand-text em { font-style: normal; font-size: 11px; color: var(--muted-2); letter-spacing: 1px; }

.main-nav { flex: 1 1 auto; min-width: 0; }
.main-nav > ul { display: flex; align-items: center; flex-wrap: nowrap; gap: 0; }
.main-nav > ul > li { position: relative; }
.main-nav > ul > li > a {
  display: inline-flex; align-items: center; height: 76px; padding: 0 10px;
  font-size: 14px; font-weight: 500; color: var(--ink-2); position: relative; white-space: nowrap;
}
.main-nav > ul > li > a::after {
  content: ""; position: absolute; left: 12px; right: 12px; bottom: 18px; height: 2px;
  background: var(--brand-500); transform: scaleX(0); transform-origin: left; transition: transform .2s;
}
.main-nav > ul > li:hover > a, .main-nav > ul > li.is-active > a { color: var(--brand); }
.main-nav > ul > li:hover > a::after, .main-nav > ul > li.is-active > a::after { transform: scaleX(1); }

.sub-nav {
  position: absolute; top: 76px; left: 0; min-width: 210px; background: #fff;
  border: 1px solid var(--line); border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  box-shadow: var(--shadow); padding: 8px; opacity: 0; visibility: hidden;
  transform: translateY(8px); transition: all .18s ease;
}
.main-nav > ul > li:hover .sub-nav { opacity: 1; visibility: visible; transform: translateY(0); }
.sub-nav a {
  display: block; padding: 9px 14px; font-size: 14.5px; color: var(--ink-2); border-radius: 8px;
}
.sub-nav a:hover { background: var(--brand-50); color: var(--brand); }

.header-actions { display: flex; align-items: center; gap: 12px; flex: 0 0 auto; }
.quick-search { display: flex; align-items: center; border: 1px solid var(--line); border-radius: 999px; padding: 0 6px 0 12px; height: 38px; background: var(--bg); }
.quick-search input { border: 0; background: transparent; outline: none; width: 104px; font-size: 13px; }
.quick-search button { border: 0; background: transparent; color: var(--muted); cursor: pointer; padding: 6px; display: inline-flex; }
.quick-search button:hover { color: var(--brand); }
.nav-toggle { display: none; }
.nav-close { display: none; }
.nav-mask {
  position: fixed; inset: 0; background: rgba(9, 17, 32, .5); z-index: 100;
  opacity: 0; visibility: hidden; transition: opacity .2s ease, visibility .2s ease;
}
.nav-mask.is-open { opacity: 1; visibility: visible; }

/* ---------------- Hero ---------------- */
.hero { position: relative; background: #08213f; color: #fff; overflow: hidden; }
.hero .wrap { position: relative; z-index: 2; }
.hero-media { position: absolute; inset: 0; z-index: 0; }
.hero-media-item {
  position: absolute; inset: 0; background-size: cover; background-position: 50% 40%;
  opacity: 0; transition: opacity 1s ease;
  filter: brightness(1.1) saturate(1.08) contrast(1.03);
}
.hero-media-item.is-on { opacity: 1; }
.hero-media-item::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(100deg, rgba(5, 18, 38, .8) 0%, rgba(6, 24, 50, .5) 38%, rgba(7, 28, 56, .06) 72%, rgba(7, 28, 56, 0) 100%),
    linear-gradient(0deg, rgba(6, 20, 40, .34) 0%, rgba(6, 20, 40, 0) 42%);
}
.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(900px 480px at 15% 10%, rgba(26, 111, 212, .45), transparent 60%),
    radial-gradient(700px 420px at 82% 80%, rgba(14, 143, 143, .28), transparent 65%),
    linear-gradient(160deg, #08203d 0%, #0b3b8c 58%, #0a2a63 100%);
}
.hero-bg::after {
  content: ""; position: absolute; inset: 0; opacity: .18;
  background-image: linear-gradient(rgba(255,255,255,.16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.16) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(circle at 30% 40%, #000 30%, transparent 75%);
}
.hero-in {
  position: relative; display: grid; grid-template-columns: minmax(0, 1fr) 372px;
  gap: 56px; padding-top: 96px; padding-bottom: 88px; align-items: center;
}
.hero-slider { min-height: 300px; position: relative; }
.hero-slide { display: none; animation: fadeUp .5s ease both; }
.hero-slide.is-on { display: block; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
.hero-eyebrow {
  display: inline-block; font-size: 13px; letter-spacing: 1px; color: #d3e6ff;
  border: 1px solid rgba(168, 200, 245, .5); border-radius: 999px; padding: 5px 14px; margin-bottom: 22px;
  background: rgba(8, 28, 56, .38); backdrop-filter: blur(2px);
}
.hero-title { font-size: 46px; line-height: 1.22; letter-spacing: -.5px; color: #fff; margin-bottom: 18px; font-weight: 800; text-shadow: 0 2px 18px rgba(4, 16, 34, .45); }
.hero-text { font-size: 16.5px; color: rgba(255, 255, 255, .92); max-width: 620px; margin-bottom: 30px; text-shadow: 0 1px 12px rgba(4, 16, 34, .5); }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-dots { display: flex; gap: 8px; margin-top: 34px; }
.hero-dots button {
  border: 1px solid rgba(255, 255, 255, .3); background: transparent; color: rgba(255, 255, 255, .6);
  width: 42px; height: 30px; border-radius: 8px; font-size: 12px; cursor: pointer; transition: all .2s;
}
.hero-dots button.is-on { background: rgba(255, 255, 255, .95); color: var(--brand); border-color: transparent; font-weight: 700; }

.hero-card {
  background: #fff; border-radius: var(--radius); padding: 26px 24px; color: var(--ink-2);
  box-shadow: var(--shadow-lg);
}
.hero-card h2 { font-size: 19px; margin-bottom: 6px; }
.hero-card > p { font-size: 13.5px; color: var(--muted); margin-bottom: 18px; line-height: 1.6; }
.hero-card-call .hero-tel {
  display: block; border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 14px 16px; background: linear-gradient(180deg, #f6faff, #fff); margin-bottom: 14px;
  transition: border-color .18s, box-shadow .18s;
}
.hero-card-call .hero-tel:hover { border-color: var(--brand-500); box-shadow: 0 6px 18px rgba(26, 111, 212, .1); }
.hero-card-call .hero-tel span { display: block; font-size: 12px; color: var(--muted-2); letter-spacing: .5px; }
.hero-card-call .hero-tel strong { display: block; font-size: 26px; color: var(--brand); letter-spacing: .4px; margin: 2px 0; }
.hero-card-call .hero-tel em { font-style: normal; font-size: 12px; color: var(--muted); }
.hero-kv { display: grid; gap: 8px; margin-bottom: 16px; }
.hero-kv li {
  display: flex; justify-content: space-between; gap: 12px; font-size: 12.5px; color: var(--muted-2);
  border-bottom: 1px dashed var(--line); padding-bottom: 7px;
}
.hero-kv li:last-child { border-bottom: 0; padding-bottom: 2px; }
.hero-kv b { font-weight: 600; color: var(--ink-2); text-align: right; word-break: break-all; }
.hero-card-call .btn { margin-bottom: 10px; }
.mini-form-tip { font-size: 11.5px; color: var(--muted-2); line-height: 1.5; }

.hero-stats {
  position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  margin-top: 26px; margin-bottom: 46px; border-radius: var(--radius);
  background: rgba(255, 255, 255, .12); overflow: hidden;
}
.hero-stats li { background: rgba(9, 32, 63, .55); padding: 20px 22px; }
.hero-stats strong { display: block; font-size: 30px; color: #fff; font-weight: 800; letter-spacing: -.5px; }
.hero-stats strong em { font-style: normal; font-size: 14px; margin-left: 3px; color: #9cc7ff; font-weight: 600; }
.hero-stats span { font-size: 13px; color: rgba(255, 255, 255, .66); }

/* ---------------- 通用区块 ---------------- */
.sec { padding: 78px 0; }
.sec-services { background: var(--surface); }
.sec-process { background: var(--bg); }
.sec-insight { background: var(--surface); }
.sec-cases { background: linear-gradient(180deg, #0b2c5c, #08213f); }
.sec-brands { background: var(--bg); padding: 46px 0; }
.sec-faq { background: var(--surface); }
.sec-cta { background: linear-gradient(120deg, var(--brand), #08213f); color: #fff; padding: 54px 0; }

.sec-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 30px; margin-bottom: 40px; }
.sec-eyebrow { font-size: 12px; letter-spacing: 2px; color: var(--brand-500); font-weight: 700; margin-bottom: 8px; }
.sec-head h2 { font-size: 30px; letter-spacing: -.3px; }
.sec-lead { font-size: 14.5px; color: var(--muted); max-width: 460px; line-height: 1.7; }
.sec-more { font-size: 14px; font-weight: 600; color: var(--brand-600); white-space: nowrap; }
.sec-head-light h2, .sec-head-light .sec-lead { color: #fff; }
.sec-head-light .sec-lead { color: rgba(255, 255, 255, .68); }
.sec-head-light .sec-eyebrow { color: #8ec5ff; }

/* ---------------- 服务卡片 ---------------- */
.svc-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.svc-card {
  display: flex; flex-direction: column; gap: 10px; padding: 26px 22px 22px;
  border: 1px solid var(--line); border-radius: var(--radius); background: #fff;
  transition: transform .2s, box-shadow .2s, border-color .2s; height: 100%;
}
.svc-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: #cfdcf3; }
.svc-card { position: relative; }
.svc-img {
  position: absolute; top: 22px; right: 22px; width: 64px; height: 64px;
  border-radius: 12px; object-fit: cover; border: 1px solid var(--line);
  box-shadow: 0 2px 8px rgba(11, 59, 140, .10);
}
.svc-ico {
  width: 46px; height: 46px; border-radius: 12px; display: inline-flex; align-items: center; justify-content: center;
  background: var(--brand-100); color: var(--brand);
}
.svc-ico-2 { background: #e7f6f4; color: var(--teal); }
.svc-ico-3 { background: #fdf1e3; color: var(--amber); }
.svc-ico-4 { background: #eef0fb; color: #4b4fa8; }
.svc-card h3 { font-size: 18px; }
.svc-card p { font-size: 13.5px; color: var(--muted); line-height: 1.7; flex: 1; }
.svc-more { font-size: 13px; font-weight: 600; color: var(--brand-600); }

.cnc-strip {
  margin-top: 22px; padding: 22px 26px; border-radius: var(--radius);
  background: var(--brand-50); border: 1px solid #dbe6fa;
  display: flex; align-items: center; gap: 26px; flex-wrap: wrap;
}
.cnc-strip-alt { background: #f7f9fc; border-color: var(--line); margin-top: 14px; }
.cnc-strip-alt .cnc-chips a { border-color: var(--line); }
.cnc-strip-head h3 { font-size: 17px; }
.cnc-strip-head p { font-size: 13px; color: var(--muted); }
.cnc-chips { display: flex; flex-wrap: wrap; gap: 8px; flex: 1; }
.cnc-chips a {
  font-size: 13px; padding: 6px 13px; border-radius: 999px; background: #fff;
  border: 1px solid #dbe6fa; color: var(--ink-2);
}
.cnc-chips a:hover { border-color: var(--brand-500); color: var(--brand); }

/* ---------------- 流程 ---------------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: s; }
.steps li {
  position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 22px; box-shadow: var(--shadow-sm);
}
.steps li::after {
  content: ""; position: absolute; top: 42px; right: -19px; width: 12px; height: 12px;
  border-top: 2px solid #c9d6ea; border-right: 2px solid #c9d6ea; transform: rotate(45deg);
}
.steps li:last-child::after { display: none; }
.step-no { font-size: 13px; font-weight: 800; color: var(--brand-500); letter-spacing: 1px; }
.steps h3 { font-size: 17px; margin: 6px 0 8px; }
.steps p { font-size: 13.5px; color: var(--muted); line-height: 1.7; }
.steps-sm li { padding: 20px 18px; }
.steps-sm h3 { font-size: 15.5px; }

/* ---------------- 技术文章 ---------------- */
.insight-layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 34px; }
.insight-main { display: grid; gap: 16px; }
.feat-card {
  display: grid; grid-template-columns: 210px minmax(0, 1fr); gap: 22px;
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff;
  transition: box-shadow .2s, transform .2s, border-color .2s;
}
.feat-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); border-color: #cfdcf3; }
.feat-thumb { position: relative; min-height: 150px; display: flex; align-items: center; justify-content: center; }
.feat-glyph { font-size: 40px; font-weight: 800; color: rgba(255, 255, 255, .92); letter-spacing: 2px; }
.feat-tag {
  position: absolute; top: 12px; left: 12px; font-size: 11px; font-weight: 700;
  background: rgba(255, 255, 255, .92); color: var(--brand); padding: 3px 9px; border-radius: 999px;
}
.feat-body { padding: 22px 22px 22px 0; display: flex; flex-direction: column; gap: 8px; }
.feat-body h3 { font-size: 18.5px; line-height: 1.45; }
.feat-body p { font-size: 13.5px; color: var(--muted); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.meta { display: flex; gap: 16px; font-size: 12.5px; color: var(--muted-2); }

.insight-side { border-left: 1px solid var(--line); padding-left: 26px; }
.side-title { font-size: 15px; margin-bottom: 14px; }
.news-list li { border-bottom: 1px dashed var(--line); }
.news-list li:last-child { border-bottom: 0; }
.news-list a { display: flex; gap: 12px; padding: 11px 2px; align-items: baseline; }
.news-date { font-size: 12px; color: var(--muted-2); font-variant-numeric: tabular-nums; flex: 0 0 40px; }
.news-title { font-size: 14px; color: var(--ink-2); line-height: 1.55; }
.news-list a:hover .news-title { color: var(--brand); }
.side-all { display: inline-block; margin-top: 14px; font-size: 13.5px; font-weight: 600; }

/* 缩略图配色 */
.thumb-t1 { background: linear-gradient(135deg, #123c7a, #1a6fd4); }
.thumb-t2 { background: linear-gradient(135deg, #0b4f4f, #0e8f8f); }
.thumb-t3 { background: linear-gradient(135deg, #3a2f6e, #5b56b8); }
.thumb-t4 { background: linear-gradient(135deg, #63391a, #b7791f); }

/* ---------------- 案例 ---------------- */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.case-card {
  display: flex; flex-direction: column; gap: 10px; padding: 26px 24px;
  border-radius: var(--radius); background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .14); transition: background .2s, transform .2s;
}
.case-card:hover { background: rgba(255, 255, 255, .11); transform: translateY(-3px); }
.case-no { font-size: 11.5px; letter-spacing: 1.5px; color: #8ec5ff; font-weight: 700; }
.case-card h3 { font-size: 17.5px; color: #fff; line-height: 1.5; }
.case-card p { font-size: 13.5px; color: rgba(255, 255, 255, .7); flex: 1; }
.case-meta { font-size: 12px; color: rgba(255, 255, 255, .45); }

/* ---------------- 品牌墙 ---------------- */
.brands-title { text-align: center; font-size: 13px; color: var(--muted-2); letter-spacing: 2px; margin-bottom: 22px; }
.brand-wall { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
.brand-wall li {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 14px 10px; text-align: center; transition: border-color .2s, box-shadow .2s;
}
.brand-wall li:hover { border-color: #cfdcf3; box-shadow: var(--shadow-sm); }
.brand-wall strong { display: block; font-size: 12.5px; letter-spacing: .8px; color: var(--ink); }
.brand-wall span { font-size: 12px; color: var(--muted-2); }

/* ---------------- FAQ ---------------- */
.faq-layout { display: grid; grid-template-columns: 330px minmax(0, 1fr); gap: 48px; }
.faq-intro h2 { font-size: 28px; margin-bottom: 12px; }
.faq-intro p { font-size: 14px; color: var(--muted); margin-bottom: 18px; }
.faq-intro a { font-weight: 600; }
.faq-list { display: grid; gap: 10px; }
.faq-item { border: 1px solid var(--line); border-radius: var(--radius-sm); background: #fff; overflow: hidden; }
.faq-item summary {
  cursor: pointer; padding: 16px 20px; font-size: 15.5px; font-weight: 600; color: var(--ink);
  list-style: none; position: relative; padding-right: 48px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; position: absolute; right: 20px; top: 50%; transform: translateY(-50%);
  font-size: 20px; font-weight: 400; color: var(--brand-500); transition: transform .2s;
}
.faq-item[open] summary::after { content: "–"; }
.faq-item[open] summary { background: var(--brand-50); }
.faq-a { padding: 14px 20px 18px; font-size: 14px; color: var(--muted); line-height: 1.8; border-top: 1px solid var(--line-2); }
.faq-list-lg .faq-item summary { font-size: 16.5px; padding: 18px 22px; }
.faq-list-lg .faq-a { font-size: 14.5px; padding: 16px 22px 20px; }

/* ---------------- CTA 区块 ---------------- */
.cta-in { display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.cta-in h2 { color: #fff; font-size: 26px; margin-bottom: 8px; }
.cta-in p { font-size: 14px; color: rgba(255, 255, 255, .75); }
.cta-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------------- 面包屑 ---------------- */
/* ---------------- 栏目标题横幅 ---------------- */
.cat-banner { position: relative; overflow: hidden; background: #0a2a58; color: #fff; isolation: isolate; }
.cat-banner-bg {
  position: absolute; inset: 0; z-index: -2;
  background-size: cover; background-position: 50% 45%;
  transform: scale(1.02);
  filter: brightness(1.06) saturate(1.05);
}
.cat-banner::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(92deg, rgba(5, 18, 38, .88) 0%, rgba(6, 24, 50, .62) 42%, rgba(7, 28, 56, .12) 78%, rgba(7, 28, 56, 0) 100%),
    linear-gradient(0deg, rgba(6, 20, 40, .35) 0%, rgba(6, 20, 40, 0) 60%);
}
.cat-banner-plain { background: linear-gradient(120deg, #08203d 0%, #0b3b8c 62%, #0a2a63 100%); }
.cat-banner-in { position: relative; padding: 62px 0 58px; max-width: 720px; }
.cat-banner-title {
  font-size: 38px; line-height: 1.24; font-weight: 800; letter-spacing: -.4px; color: #fff;
  margin: 0 0 12px; text-shadow: 0 2px 18px rgba(4, 16, 34, .45);
}
.cat-banner-text {
  font-size: 15.5px; line-height: 1.75; color: rgba(255, 255, 255, .9); max-width: 620px; margin: 0;
  text-shadow: 0 1px 12px rgba(4, 16, 34, .5);
}
.cat-banner-line { display: block; width: 52px; height: 3px; border-radius: 2px; background: #5aa2ff; margin-top: 22px; }
.cat-banner + .crumbs { border-top: 0; }

.crumbs { background: var(--bg); border-bottom: 1px solid var(--line); font-size: 13px; }.crumbs ol { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; padding: 12px 0; color: var(--muted-2); }
.crumbs li { display: flex; align-items: center; gap: 6px; }
.crumbs li + li::before { content: "/"; color: #c3ccda; }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--brand); }
.crumbs span[aria-current] { color: var(--ink-2); }

/* ---------------- 页面布局 ---------------- */
.page-layout {
  display: grid; grid-template-columns: 268px minmax(0, 1fr); gap: 40px;
  padding-top: 34px; padding-bottom: 70px; align-items: start;
}
.content-col { min-width: 0; }
.page-head { margin-bottom: 26px; }
.page-head h1 { font-size: 30px; letter-spacing: -.3px; margin-bottom: 10px; }
.page-desc { font-size: 14.5px; color: var(--muted); line-height: 1.8; }
.page-count { font-size: 12.5px; color: var(--muted-2); margin-top: 10px; }
.page-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.page-chips a {
  font-size: 13px; padding: 6px 14px; border-radius: 999px; border: 1px solid var(--line);
  background: #fff; color: var(--ink-2);
}
.page-chips a:hover, .page-chips a.is-on { border-color: var(--brand-500); color: var(--brand); background: var(--brand-50); }

/* ---------------- 侧栏 ---------------- */
.sidebar { display: flex; flex-direction: column; gap: 16px; position: sticky; top: 96px; }
.side-block { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.side-head {
  font-size: 15px; padding: 14px 18px; background: var(--bg); border-bottom: 1px solid var(--line);
  display: flex; align-items: center; gap: 8px;
}
.side-head::before { content: ""; width: 3px; height: 14px; border-radius: 2px; background: var(--brand-500); }
.side-tree { padding: 6px; }
.side-tree li a {
  display: block; padding: 9px 12px; font-size: 14px; color: var(--ink-2); border-radius: 8px;
}
.side-tree li a:hover { background: var(--brand-50); color: var(--brand); }
.side-tree li.is-on a { background: var(--brand); color: #fff; font-weight: 600; }
.hot-list { padding: 10px 14px 14px; display: grid; gap: 2px; }
.hot-list a { display: flex; gap: 10px; padding: 8px 0; font-size: 13.5px; color: var(--ink-2); align-items: flex-start; }
.hot-list a:hover { color: var(--brand); }
.hot-no {
  flex: 0 0 18px; height: 18px; border-radius: 4px; background: var(--bg); color: var(--muted);
  font-size: 11px; font-weight: 700; display: inline-flex; align-items: center; justify-content: center; margin-top: 3px;
}
.hot-list li:nth-child(-n+3) .hot-no { background: var(--brand-100); color: var(--brand); }
.side-cta {
  background: linear-gradient(150deg, #0b3b8c, #08213f); color: #fff; border-radius: var(--radius);
  padding: 22px 20px; text-align: center;
}
.side-cta-eyebrow { font-size: 11.5px; letter-spacing: 1px; color: #9cc7ff; margin-bottom: 6px; }
.side-cta strong { display: block; font-size: 24px; letter-spacing: .5px; margin-bottom: 4px; }
.side-cta span { display: block; font-size: 12.5px; color: rgba(255, 255, 255, .68); margin-bottom: 14px; }

/* ---------------- 列表卡片 ---------------- */
.post-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.post-card { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; transition: box-shadow .2s, transform .2s, border-color .2s; }
.post-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); border-color: #cfdcf3; }
.post-link { display: flex; flex-direction: column; height: 100%; }
.post-thumb { position: relative; height: 132px; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.post-glyph { font-size: 30px; font-weight: 800; color: rgba(255, 255, 255, .9); letter-spacing: 2px; }
.post-cover { width: 100%; height: 100%; object-fit: cover; display: block; }
.post-badge { position: absolute; top: 10px; right: 10px; background: rgba(255,255,255,.92); color: var(--brand); font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 999px; }
.post-body { padding: 18px 18px 16px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.post-body h2 { font-size: 16.5px; line-height: 1.5; }
.post-link:hover h2 { color: var(--brand); }
.post-body p { font-size: 13px; color: var(--muted); line-height: 1.7; flex: 1; }

.pager { display: flex; align-items: center; justify-content: center; gap: 14px; margin-top: 34px; }
.pager-btn {
  height: 42px; padding: 0 20px; border: 1px solid var(--line); border-radius: 999px;
  display: inline-flex; align-items: center; font-size: 14px; color: var(--ink-2); background: #fff;
}
.pager-btn:hover { border-color: var(--brand-500); color: var(--brand); }
.pager-btn.is-disabled { color: #b9c2d0; background: #fafbfd; }
.pager-info { font-size: 13.5px; color: var(--muted); }

/* ---------------- 文章 ---------------- */
.article { background: #fff; }
.article-head { border-bottom: 1px solid var(--line); padding-bottom: 20px; margin-bottom: 24px; }
.article-cat { font-size: 12.5px; color: var(--muted-2); display: flex; gap: 8px; margin-bottom: 10px; }
.article-cat a { color: var(--brand-600); font-weight: 600; }
.article-head h1 { font-size: 31px; line-height: 1.4; letter-spacing: -.3px; margin-bottom: 10px; }
.article-sub { font-size: 15px; color: var(--muted); margin-bottom: 14px; }
.article-meta { display: flex; flex-wrap: wrap; gap: 16px; font-size: 12.5px; color: var(--muted-2); }

.key-box {
  background: var(--brand-50); border: 1px solid #dbe6fa; border-left: 3px solid var(--brand-500);
  border-radius: var(--radius-sm); padding: 16px 20px; margin-bottom: 24px;
}
.key-box strong { display: block; font-size: 13px; color: var(--brand); letter-spacing: 1px; margin-bottom: 6px; }
.key-box p { font-size: 14.5px; color: var(--ink-2); line-height: 1.8; }

.video-box {
  margin-bottom: 26px; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  background: #0d1b2a; box-shadow: var(--shadow);
}
.art-video { display: block; width: 100%; max-height: 560px; background: #0d1b2a; }
.video-cap {
  margin: 0; padding: 10px 16px; font-size: 12.5px; color: rgba(255, 255, 255, .72);
  background: #0d1b2a; line-height: 1.6;
}
.video-pending {
  border: 1px dashed var(--brand-300, #a9c8ef); background: #f5f9ff; border-radius: var(--radius-sm);
  padding: 16px 20px; margin-bottom: 26px;
}
.video-pending strong { display: block; font-size: 14.5px; color: var(--brand); margin-bottom: 5px; }
.video-pending p { font-size: 13.5px; color: var(--muted); line-height: 1.75; }

.toc { border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 16px 20px; margin-bottom: 26px; background: #fbfcfe; }
.toc-title { font-size: 13px; font-weight: 700; color: var(--ink); margin-bottom: 8px; }
.toc ol { display: grid; gap: 4px; counter-reset: t; }
.toc li { counter-increment: t; font-size: 13.5px; }
.toc li::before { content: counter(t) ". "; color: var(--muted-2); }
.toc a { color: var(--muted); }
.toc a:hover { color: var(--brand); }

.article-body { font-size: 16px; line-height: 1.95; color: var(--ink-2); }
.article-body > * + * { margin-top: 18px; }
.article-body h2 {
  font-size: 22px; margin-top: 38px; padding-left: 14px; position: relative;
  scroll-margin-top: 100px;
}
.article-body h2::before { content: ""; position: absolute; left: 0; top: 6px; bottom: 6px; width: 4px; border-radius: 2px; background: var(--brand-500); }
.article-body h3 { font-size: 18px; margin-top: 26px; color: var(--ink); }
.article-body p { color: var(--ink-2); }
.article-body strong { color: var(--ink); }
.article-body figure { margin: 26px 0; }
.article-body figure img { display: block; width: 100%; height: auto; border-radius: var(--radius); border: 1px solid var(--line); background: #f2f6fc; }
.article-body figure figcaption { margin-top: 9px; font-size: 13px; color: var(--muted-2); text-align: center; line-height: 1.6; }
.article-body img { border-radius: var(--radius); }
.article-body ul, .article-body ol { padding-left: 4px; display: grid; gap: 8px; }
.article-body ul li, .article-body ol li { position: relative; padding-left: 22px; }
.article-body ul li::before { content: ""; position: absolute; left: 6px; top: 12px; width: 6px; height: 6px; border-radius: 50%; background: var(--brand-500); }
.article-body ol { counter-reset: o; }
.article-body ol li::before {
  counter-increment: o; content: counter(o); position: absolute; left: 0; top: 5px;
  width: 18px; height: 18px; border-radius: 50%; background: var(--brand-100); color: var(--brand);
  font-size: 11px; font-weight: 700; display: flex; align-items: center; justify-content: center;
}
.article-body table { width: 100%; border-collapse: collapse; font-size: 14px; margin: 22px 0; display: block; overflow-x: auto; }
.article-body thead th { background: var(--bg); font-weight: 700; color: var(--ink); text-align: left; }
.article-body th, .article-body td { border: 1px solid var(--line); padding: 10px 13px; line-height: 1.65; }
.article-body tbody tr:nth-child(even) { background: #fbfcfe; }
.article-body a { border-bottom: 1px solid rgba(26, 111, 212, .35); }
.article-body blockquote {
  margin: 22px 0; padding: 14px 20px; background: var(--bg); border-left: 3px solid #c9d6ea;
  color: var(--muted); font-size: 15px;
}

.article-tags { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 30px; padding-top: 20px; border-top: 1px solid var(--line-2); font-size: 13px; color: var(--muted-2); }
.article-tags a { font-size: 12.5px; padding: 4px 12px; border-radius: 999px; background: var(--bg); color: var(--muted); }
.article-tags a:hover { background: var(--brand-100); color: var(--brand); }

.article-cta {
  margin-top: 30px; padding: 24px 26px; border-radius: var(--radius);
  background: linear-gradient(120deg, var(--brand-50), #fff); border: 1px solid #dbe6fa;
  display: flex; align-items: center; justify-content: space-between; gap: 22px; flex-wrap: wrap;
}
.article-cta strong { font-size: 17px; color: var(--ink); display: block; margin-bottom: 6px; }
.article-cta p { font-size: 13.5px; color: var(--muted); }
.article-cta-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.prev-next { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 26px; }
.pn-item { border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 14px 18px; display: flex; flex-direction: column; gap: 4px; }
.pn-item span { font-size: 12px; color: var(--muted-2); }
.pn-item strong { font-size: 14px; color: var(--ink-2); font-weight: 600; }
.pn-item:hover { border-color: #cfdcf3; background: var(--brand-50); }
.pn-item:hover strong { color: var(--brand); }
.pn-next { text-align: right; }
.pn-item.is-empty { background: transparent; border: 0; }

/* 相关推荐 */
.rel-box { margin-top: 46px; padding-top: 28px; border-top: 1px solid var(--line); }
.rel-title { font-size: 19px; margin-bottom: 18px; display: flex; align-items: center; gap: 10px; }
.rel-title::before { content: ""; width: 4px; height: 17px; background: var(--brand-500); border-radius: 2px; }
.rel-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.rel-card { display: grid; grid-template-columns: 76px minmax(0, 1fr); gap: 14px; padding: 12px; border: 1px solid var(--line); border-radius: var(--radius-sm); align-items: center; }
.rel-card:hover { border-color: #cfdcf3; background: #fbfcfe; }
.rel-thumb { height: 64px; border-radius: 8px; display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,.9); font-size: 16px; font-weight: 700; }
.rel-card h3 { font-size: 14px; line-height: 1.5; }
.rel-card p { font-size: 12.5px; color: var(--muted-2); margin-top: 4px; }
.rel-list { display: grid; gap: 2px; }
.rel-list li { display: flex; justify-content: space-between; gap: 20px; padding: 11px 0; border-bottom: 1px dashed var(--line); font-size: 14px; }
.rel-list li:last-child { border-bottom: 0; }
.rel-list a { color: var(--ink-2); }
.rel-list a:hover { color: var(--brand); }
.rel-list span { font-size: 12.5px; color: var(--muted-2); white-space: nowrap; }

/* 老站机型实拍图库 */
/* ---------------- 栏目图文介绍 ---------------- */
.cat-intro {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 28px; margin-bottom: 30px; box-shadow: var(--shadow-sm, 0 2px 10px rgba(15, 23, 42, .04));
}
.cat-intro-body { font-size: 15px; }
.cat-intro-body > :first-child { margin-top: 0; }
.cat-intro-body > :last-child { margin-bottom: 0; }
.cat-intro-body h2 { font-size: 20px; margin: 22px 0 10px; }
.cat-intro-body h2:first-child { margin-top: 0; }
.cat-intro-body p { margin: 0 0 12px; line-height: 1.85; color: var(--ink-2); }
.cat-intro-body ul, .cat-intro-body ol { margin: 0 0 14px; padding-left: 22px; line-height: 1.9; }
.cat-gallery { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 20px; }
.cat-gallery figure { margin: 0; border-radius: var(--radius-sm); overflow: hidden; background: #f2f6fc; border: 1px solid var(--line); }
.cat-gallery img { display: block; width: 100%; height: 132px; object-fit: cover; transition: transform .3s; }
.cat-gallery figure:hover img { transform: scale(1.04); }

.legacy-gallery { margin: 6px 0 34px; }
.legacy-gallery .lg-title { font-size: 20px; margin-bottom: 6px; }
.legacy-gallery .lg-desc { font-size: 13px; color: var(--muted); margin-bottom: 16px; }
.lg-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.lg-grid figure { margin: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; }
.lg-grid img { display: block; width: 100%; height: 150px; object-fit: cover; }
.lg-grid figcaption { padding: 8px 10px; font-size: 12.5px; font-weight: 600; color: var(--ink-2); text-align: center; }

/* 联系页 ---------------- */
.contact-wrap { padding-top: 34px; padding-bottom: 70px; }
.contact-grid { display: grid; grid-template-columns: 380px minmax(0, 1fr); gap: 22px; margin-bottom: 40px; }
.contact-card { border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; background: #fff; }
.contact-card h2 { font-size: 18px; margin-bottom: 16px; }
.contact-list { display: grid; gap: 12px; }
.contact-list li { display: grid; grid-template-columns: 74px 1fr; gap: 12px; font-size: 14px; align-items: baseline; }
.contact-list li > span { color: var(--muted-2); font-size: 13px; }
.contact-list b { font-weight: 600; color: var(--ink-2); }
.contact-list strong { font-size: 21px; color: var(--brand); letter-spacing: .3px; }
.contact-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 18px; }
.contact-tags span { font-size: 12px; padding: 3px 10px; border-radius: 999px; background: var(--bg); color: var(--muted); }
.card-lead { font-size: 13px; color: var(--muted); margin: -8px 0 18px; }
.req-list { display: grid; gap: 13px; margin-bottom: 22px; counter-reset: req; }
.req-list li { position: relative; padding-left: 40px; }
.req-list li::before {
  counter-increment: req; content: "0" counter(req);
  position: absolute; left: 0; top: 1px; width: 27px; height: 27px; border-radius: 8px;
  background: #eef4fd; color: var(--brand); font-size: 12px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.req-list b { display: block; font-size: 14.5px; color: var(--ink); margin-bottom: 2px; }
.req-list span { font-size: 13px; color: var(--muted); line-height: 1.6; }
.req-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 12px; }
.form-tip { font-size: 12px; color: var(--muted-2); }
.contact-col-right { display: grid; gap: 22px; align-content: start; }
.qr-title { font-size: 15px; color: var(--ink); margin: 22px 0 12px; padding-top: 18px; border-top: 1px dashed var(--line); }
.qr-wall { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.qr-wall-3 { grid-template-columns: repeat(3, 1fr); }
.qr-follow-card .qr-wall.qr-wall-3 { display: flex; flex-wrap: nowrap; align-items: flex-start; gap: 20px; justify-items: unset; }
.qr-follow-card .qr-wall figure { flex: 0 0 auto; }
.qr-follow-card .qr-wall img { width: 86px; height: 86px; max-width: none; margin: 0; }
.qr-follow-card .qr-wall figcaption { margin-top: 5px; font-size: 12px; }
.qr-follow-card .qr-wall figcaption em { font-size: 10.5px; }
.qr-wall figure { margin: 0; }
.qr-wall img {
  display: block; width: 100%; aspect-ratio: 1 / 1; object-fit: cover; object-position: 50% 38%;
  border-radius: 10px; border: 1px solid var(--line); background: #fff;
}
.qr-wall figcaption { margin-top: 7px; text-align: center; font-size: 12.5px; color: var(--ink-2); font-weight: 600; }
.qr-wall figcaption em { display: block; font-style: normal; font-weight: 400; font-size: 11px; color: var(--muted-2); margin-top: 1px; }
.li-wechat { align-items: center !important; }
.wechat-inline { display: flex; align-items: center; gap: 12px; }
.wechat-inline img { width: 96px; height: 96px; object-fit: cover; border-radius: 10px; border: 1px solid var(--line); }
.wechat-inline em { font-style: normal; font-size: 12.5px; color: var(--muted); line-height: 1.7; }
.promise-card h2 { margin-bottom: 4px; }
.promise-list { display: grid; gap: 13px; margin: 14px 0 4px; }
.promise-list li { display: flex; gap: 12px; align-items: baseline; }
.promise-list b { flex: 0 0 auto; font-size: 13.5px; color: var(--brand); background: #eef4fd; border-radius: 6px; padding: 2px 8px; }
.promise-list span { font-size: 13px; color: var(--muted); line-height: 1.65; }
.contact-groups { margin-bottom: 42px; }
.contact-groups > h2 { font-size: 22px; margin-bottom: 18px; letter-spacing: -.2px; }
.cg-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.cg-card {
  display: block; border: 1px solid var(--line); border-radius: var(--radius); background: #fff;
  padding: 22px 22px 20px; transition: border-color .18s, box-shadow .18s, transform .18s;
}
.cg-card:hover { border-color: var(--brand-500); box-shadow: var(--shadow); transform: translateY(-2px); }
.cg-card h3 { font-size: 17px; color: var(--ink); margin-bottom: 8px; }
.cg-card p { font-size: 13px; line-height: 1.75; color: var(--muted); margin-bottom: 12px; }
.cg-card span { font-size: 12px; color: var(--muted-2); line-height: 1.7; }
.meta-cat { color: var(--brand); background: #eef4fd; border-radius: 999px; padding: 1px 8px; font-size: 11.5px; }
@media (max-width: 900px) { .cg-grid { grid-template-columns: 1fr; } }

.ship-flow h2 { font-size: 20px; margin-bottom: 16px; }

/* ---------------- 下载页 ---------------- */
.dl-table { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.dl-row { display: grid; grid-template-columns: minmax(0, 1fr) 130px 110px 110px; gap: 12px; padding: 14px 20px; font-size: 14px; align-items: center; border-bottom: 1px solid var(--line-2); }
.dl-row:last-child { border-bottom: 0; }
.dl-head { background: var(--bg); font-size: 13px; color: var(--muted); font-weight: 600; }
.dl-name a { font-weight: 500; color: var(--ink-2); }
.dl-name a:hover { color: var(--brand); }
.notice-box { margin-top: 20px; padding: 18px 22px; background: #fff9ec; border: 1px solid #f3e2be; border-radius: var(--radius-sm); }
.notice-box strong { display: block; font-size: 14px; color: #8a5a12; margin-bottom: 4px; }
.notice-box p { font-size: 13.5px; color: #8a6a34; }

/* ---------------- 搜索 ---------------- */
.search-wrap { padding-top: 34px; padding-bottom: 70px; }
.search-form-lg { display: flex; gap: 10px; margin: 16px 0 10px; max-width: 640px; }
.search-form-lg input {
  flex: 1; height: 50px; border: 1px solid var(--line); border-radius: 999px; padding: 0 20px;
  font-size: 15px; outline: none; background: #fbfcfe;
}
.search-form-lg input:focus { border-color: var(--brand-500); background: #fff; box-shadow: 0 0 0 3px rgba(26,111,212,.1); }
.search-list { display: grid; gap: 14px; margin-top: 24px; }
.search-list li { border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 22px; background: #fff; }
.search-list li:hover { border-color: #cfdcf3; box-shadow: var(--shadow-sm); }
.search-list h2 { font-size: 17px; margin-bottom: 6px; color: var(--ink); }
.search-list a:hover h2 { color: var(--brand); }
.search-list p { font-size: 13.5px; color: var(--muted); line-height: 1.7; }
.search-meta { font-size: 12px; color: var(--muted-2); display: inline-block; margin-top: 8px; }
.search-tips h2 { font-size: 18px; margin-bottom: 10px; }
.empty-box {
  padding: 40px 28px; text-align: center; background: var(--bg); border: 1px dashed #cfd8e6;
  border-radius: var(--radius); color: var(--muted); font-size: 14.5px; line-height: 1.9;
}

/* ---------------- 404 ---------------- */
.error-wrap { padding: 80px 24px 100px; text-align: center; }
.error-code { font-size: 88px; font-weight: 800; color: #dbe6fa; letter-spacing: 4px; line-height: 1; margin-bottom: 8px; }
.error-wrap h1 { font-size: 26px; margin-bottom: 12px; }
.error-wrap > p { font-size: 14.5px; color: var(--muted); }
.error-actions { display: flex; gap: 12px; justify-content: center; margin: 26px 0 34px; flex-wrap: wrap; }
.error-links { max-width: 620px; margin: 0 auto; }
.error-links p { font-size: 13px; color: var(--muted-2); margin-bottom: 10px; }
.error-links .page-chips { justify-content: center; }
.error-detail { font-size: 12px; color: #b94a48; margin-top: 10px; }

/* ---------------- 页脚 ---------------- */
.site-footer { background: #081e39; color: rgba(255, 255, 255, .66); font-size: 13.5px; }
.footer-main { display: grid; grid-template-columns: 360px minmax(0, 1fr); gap: 50px; padding: 56px 24px 40px; }
.footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-logo strong { display: block; color: #fff; font-size: 16px; line-height: 1.4; }
.footer-logo em { font-style: normal; font-size: 11.5px; color: rgba(255, 255, 255, .5); letter-spacing: 1px; }
.footer-desc { font-size: 13px; line-height: 1.85; color: rgba(255, 255, 255, .58); margin-bottom: 18px; }
.footer-contact { display: grid; gap: 6px; font-size: 13px; color: rgba(255, 255, 255, .6); }
.footer-tel { font-size: 22px; font-weight: 800; color: #fff; letter-spacing: .5px; }
.footer-cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.footer-col h3 { font-size: 14px; color: #fff; margin-bottom: 14px; font-weight: 600; }
.footer-col ul { display: grid; gap: 9px; }
.footer-col a { color: rgba(255, 255, 255, .6); font-size: 13px; }
.footer-col a:hover { color: #fff; }
.site-footer .btn-light { color: var(--brand); }
.site-footer .btn-light:hover { color: var(--brand-600); }
.footer-col-cta p { font-size: 12.5px; line-height: 1.8; color: rgba(255, 255, 255, .55); margin-bottom: 12px; }
.footer-qr { display: flex; align-items: center; gap: 14px; margin-top: 16px; }
.footer-qr img {
  display: block; width: 92px; height: 92px; border-radius: 10px; flex: 0 0 auto;
  border: 2px solid rgba(255, 255, 255, .28); background: #fff;
}
.footer-qr p { font-size: 12px; line-height: 1.9; color: rgba(255, 255, 255, .62); margin: 0; }
.footer-qr p b { display: inline; color: #fff; font-weight: 600; white-space: nowrap; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .1); }
.footer-bottom-in { display: flex; justify-content: space-between; gap: 20px; padding: 18px 24px; font-size: 12.5px; color: rgba(255, 255, 255, .45); flex-wrap: wrap; }
.footer-links { display: flex; gap: 16px; flex-wrap: wrap; }
.footer-links a { color: rgba(255, 255, 255, .5); }
.footer-links a:hover { color: #fff; }

.mobile-bar { display: none; }

/* ---------------- 响应式 ---------------- */
@media (max-width: 1380px) {
  .main-nav > ul > li > a { padding: 0 7px; font-size: 13px; }
  .quick-search input { width: 76px; }
  .header-cta { padding: 0 13px; }
  .brand-text em { display: none; }
}
@media (max-width: 1280px) {
  .quick-search { display: none; }
}
@media (max-width: 1180px) {
  .hero-in { grid-template-columns: minmax(0, 1fr) 340px; gap: 34px; }
  .hero-title { font-size: 40px; }
  .svc-grid { grid-template-columns: repeat(3, 1fr); }
  .brand-wall { grid-template-columns: repeat(4, 1fr); }
  .footer-main { grid-template-columns: 300px minmax(0, 1fr); gap: 30px; }
  .footer-cols { grid-template-columns: repeat(2, 1fr); gap: 22px; }
  .quick-search { display: none; }
}

@media (max-width: 980px) {
  /* 关键：header 上的 backdrop-filter 会让子元素的 position:fixed 以 header 为参照并被裁切，
     导致移动端抽屉导航打不开/内容显示不出来，这里在移动端关闭毛玻璃 */
  .site-header { backdrop-filter: none; -webkit-backdrop-filter: none; background: #fff; }
  .header-in { height: 66px; gap: 14px; }
  .cat-banner-in { padding: 50px 0 46px; }
  .cat-banner-title { font-size: 30px; }
  .main-nav {
    position: fixed; top: 0; right: 0; bottom: 0; left: auto; width: min(84vw, 320px); height: 100vh; height: 100dvh;
    background: #fff; z-index: 120; transform: translateX(102%); transition: transform .25s ease;
    padding: 58px 18px calc(26px + env(safe-area-inset-bottom)); overflow-y: auto; overscroll-behavior: contain;
    box-shadow: -10px 0 40px rgba(15, 23, 42, .16); -webkit-overflow-scrolling: touch;
  }
  .main-nav.is-open { transform: none; }
  .nav-close {
    display: inline-flex; align-items: center; justify-content: center; position: absolute; top: 12px; right: 12px;
    width: 36px; height: 36px; border: 1px solid var(--line); border-radius: 10px; background: #fff; color: var(--ink-2); cursor: pointer;
  }
  .main-nav > ul { flex-direction: column; align-items: stretch; gap: 0; }
  .main-nav > ul > li > a { height: auto; padding: 12px 8px; font-size: 15.5px; border-bottom: 1px solid var(--line-2); }
  .main-nav > ul > li > a::after { display: none; }
  .sub-nav { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: 0; padding: 0 0 8px 12px; }
  .sub-nav a { padding: 8px 10px; font-size: 14px; color: var(--muted); }
  .nav-toggle {
    display: inline-flex; flex-direction: column; justify-content: center; gap: 4px; margin-left: auto;
    width: 40px; height: 40px; border: 1px solid var(--line); border-radius: 10px; background: #fff; cursor: pointer;
  }
  .nav-toggle span { display: block; height: 2px; background: var(--ink-2); border-radius: 2px; margin: 0 auto; width: 18px; }
  .header-cta { display: none; }
  .hero-in { grid-template-columns: 1fr; gap: 26px; padding-top: 44px; padding-bottom: 44px; }
  .hero-title { font-size: 34px; }
  .hero-card { order: 2; }
  .hero-slider { min-height: auto; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); margin-top: 20px; }
  .sec { padding: 56px 0; }
  .sec-head { flex-direction: column; align-items: flex-start; gap: 12px; margin-bottom: 28px; }
  .svc-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .steps li::after { display: none; }
  .insight-layout { grid-template-columns: 1fr; }
  .insight-side { border-left: 0; padding-left: 0; border-top: 1px solid var(--line); padding-top: 22px; }
  .case-grid { grid-template-columns: 1fr; }
  .faq-layout { grid-template-columns: 1fr; gap: 26px; }
  .page-layout { grid-template-columns: 1fr; gap: 30px; }
  .sidebar { position: static; order: 2; }
  .content-col { order: 1; }
  .post-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .qr-wall { grid-template-columns: repeat(4, 1fr); }
  .qr-wall-3 { grid-template-columns: repeat(3, 1fr); }
  .qr-follow-card .qr-wall.qr-wall-3 { gap: 14px; }
  .qr-follow-card .qr-wall img { width: 72px; height: 72px; }
  .qr-wall figcaption em { display: none; }
  .qr-wall img { aspect-ratio: 1 / 1; }
  .footer-main { grid-template-columns: 1fr; padding: 40px 24px 30px; }
  .footer-cols { grid-template-columns: repeat(2, 1fr); }
  .brand-wall { grid-template-columns: repeat(3, 1fr); }
  .article-head h1, .page-head h1 { font-size: 25px; }
  .rel-cards { grid-template-columns: 1fr; }
  .dl-row { grid-template-columns: minmax(0, 1fr) 90px; }
  .dl-row > span:nth-child(2), .dl-row > span:nth-child(3) { display: none; }
  .mobile-bar {
    display: grid; grid-template-columns: repeat(3, 1fr); position: fixed; bottom: 0; left: 0; right: 0;
    background: #fff; border-top: 1px solid var(--line); z-index: 80; box-shadow: 0 -4px 20px rgba(15,23,42,.08);
    padding: 6px 0 calc(6px + env(safe-area-inset-bottom));
  }
  .mb-item { display: flex; flex-direction: column; align-items: center; gap: 2px; font-size: 11.5px; color: var(--muted); padding: 4px 0; }
  .mb-primary { color: var(--brand); font-weight: 600; }
  body { padding-bottom: 58px; }
}

@media (max-width: 620px) {
  .wrap { padding: 0 16px; }
  .topbar { display: none; }
  .cat-banner-in { padding: 40px 0 36px; }
  .cat-banner-title { font-size: 25px; margin-bottom: 10px; }
  .cat-banner-text { font-size: 14px; line-height: 1.7; }
  .cat-banner-line { margin-top: 16px; }
  .cat-intro { padding: 20px 18px; }
  .cat-gallery { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .cat-gallery img { height: 110px; }
  .cat-banner::after { background: linear-gradient(96deg, rgba(5, 18, 38, .92) 0%, rgba(6, 24, 50, .7) 62%, rgba(7, 28, 56, .34) 100%); }
  .hero-title { font-size: 27px; }
  .hero-text { font-size: 14.5px; }
  .hero-stats li { padding: 14px 16px; }
  .hero-stats strong { font-size: 24px; }
  .svc-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .feat-card { grid-template-columns: 1fr; }
  .feat-thumb { min-height: 110px; }
  .feat-body { padding: 0 18px 18px; }
  .post-grid { grid-template-columns: 1fr; }
  .article-body { font-size: 15.5px; }
  .article-body h2 { font-size: 19.5px; }
  .prev-next { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .sec-head h2 { font-size: 24px; }
  .footer-cols { grid-template-columns: 1fr; }
  .article-cta { flex-direction: column; align-items: flex-start; }
  .cta-in { flex-direction: column; align-items: flex-start; }
  .footer-bottom-in { flex-direction: column; gap: 8px; }
  .brand-wall { grid-template-columns: repeat(2, 1fr); }
  .cnc-strip { flex-direction: column; align-items: flex-start; gap: 14px; }
}

/* =========================================================
   内容保护：禁止复制 / 禁止右键 / 禁止长按另存
   范围：前台全站（后台使用独立 admin.css，不受影响）
   ========================================================= */
body {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  -webkit-tap-highlight-color: rgba(11, 59, 140, .06);
}

/* 表单与可编辑区域恢复输入/选择，避免影响留言、搜索、复制电话 */
input,
textarea,
select,
option,
[contenteditable="true"] {
  -webkit-user-select: text;
  -moz-user-select: text;
  -ms-user-select: text;
  user-select: text;
}

/* 图片、链接：禁止拖拽与长按菜单 */
img,
a,
picture,
svg {
  -webkit-user-drag: none;
  user-drag: none;
  -webkit-touch-callout: none;
}

/* 选中时不出现高亮，弱化整段复制的操作反馈 */
::selection { background: transparent; color: inherit; }
::-moz-selection { background: transparent; color: inherit; }

/* 复制拦截提示条 */
.copy-tip {
  position: fixed;
  left: 50%;
  bottom: 30px;
  transform: translate(-50%, 12px);
  max-width: 88vw;
  padding: 10px 20px;
  border-radius: 999px;
  background: rgba(11, 59, 140, .95);
  color: #fff;
  font-size: 14px;
  line-height: 1.5;
  text-align: center;
  box-shadow: 0 12px 30px rgba(11, 59, 140, .28);
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  transition: opacity .22s ease, transform .22s ease;
}
.copy-tip.is-show { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 640px) {
  .copy-tip { bottom: 76px; font-size: 13px; padding: 9px 16px; }
}

@media print {
  body { -webkit-user-select: text; user-select: text; }
}

/* =========================================================
   首页 · 公司视频区块
   ========================================================= */
.sec-video { background: var(--surface); }
.video-split {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 46px;
  align-items: center;
}
.video-media video {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  background: #0d1b2a;
  box-shadow: var(--shadow);
}
.video-info h2 { margin: 8px 0 12px; font-size: 30px; line-height: 1.3; color: var(--ink); }
.video-lead { margin: 0 0 16px; color: var(--muted); }
.video-points { list-style: none; margin: 0 0 24px; padding: 0; }
.video-points li { position: relative; padding-left: 26px; margin-bottom: 9px; color: var(--ink-2); }
.video-points li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--brand-500);
  font-weight: 700;
}
.video-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.btn-ghost-dark {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink-2);
}
.btn-ghost-dark:hover { border-color: var(--brand-500); color: var(--brand-600); }

@media (max-width: 980px) {
  .video-split { grid-template-columns: 1fr; gap: 24px; }
  .video-info h2 { font-size: 25px; }
}

/* =========================================================
   竖屏视频（抖音搬运）适配 + 视频卡片播放角标
   ========================================================= */
.post-cover.is-vertical { object-fit: contain; background: #0d1b2a; }

.post-play {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: rgba(13, 27, 42, .58);
  border: 2px solid rgba(255, 255, 255, .9);
  pointer-events: none;
}
.post-play::after {
  content: "";
  position: absolute;
  left: 53%;
  top: 50%;
  transform: translate(-50%, -50%);
  border-style: solid;
  border-width: 9px 0 9px 15px;
  border-color: transparent transparent transparent #fff;
}
.post-link:hover .post-play { background: rgba(11, 59, 140, .72); }

.art-video.is-vertical {
  max-width: min(430px, 100%);
  margin: 0 auto;
  max-height: 78vh;
}
.video-media video.v-vertical {
  width: auto;
  max-width: 100%;
  aspect-ratio: 9 / 16;
  max-height: 660px;
  margin: 0 auto;
}