/* ==========================================================================
   企业站样式表｜移动优先，单文件无依赖
   设计基调：白底大留白 + 深色导航条 + 橙色点缀，对标成熟企业官网气质
   ========================================================================== */

:root {
  --brand: #1a5fa8;
  --brand-dark: #123f73;
  --brand-light: #2d7ecf;
  --accent: #f5a623;
  --accent-dark: #e29512;
  --charcoal: #262b33;
  --charcoal-2: #20242b;
  --ink: #1c2430;
  --ink-2: #4a5566;
  --ink-3: #8592a3;
  --line: #e7eaef;
  --bg: #f5f6f8;
  --white: #fff;
  --radius: 10px;
  --shadow-sm: 0 2px 12px rgba(20, 35, 60, .07);
  --shadow: 0 14px 34px rgba(20, 35, 60, .14);
  --max: 1200px;
  --nav-h: 54px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--white);
  font-size: 15px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--brand); text-decoration: none; transition: color .2s; }
a:hover { color: var(--brand-light); }
h1, h2, h3, h4 { margin: 0 0 .6em; line-height: 1.35; font-weight: 700; letter-spacing: -.01em; }
h1 { font-size: 1.6rem; }
h2 { font-size: 1.35rem; }
h3 { font-size: 1.1rem; }
p { margin: 0 0 1em; }
ul, ol { padding-left: 1.2em; }
table { width: 100%; border-collapse: collapse; }

.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 16px; }

/* ---------------- 品牌栏（白底大 Logo） ---------------- */
.brandbar { background: #fff; }
.brandbar-in { display: flex; align-items: center; gap: 12px; padding-top: 14px; padding-bottom: 14px; }

.logo { display: flex; align-items: center; gap: 11px; color: var(--brand); }
.logo-mark {
  width: 46px; height: 46px; border-radius: 10px; flex: none;
  background: linear-gradient(135deg, #2d7ecf, var(--brand-dark));
  display: grid; place-items: center; color: #fff; font-size: 21px; font-weight: 800;
  box-shadow: 0 4px 12px rgba(26, 95, 168, .28);
}
.logo-txt { font-size: 17px; font-weight: 800; line-height: 1.3; letter-spacing: -.01em; }
.logo-txt small { display: block; font-size: 11px; font-weight: 500; color: var(--ink-3); letter-spacing: .12em; }

.brand-tel { display: none; margin-left: auto; text-align: right; }
.brand-tel span { display: block; font-size: 12px; color: var(--ink-3); letter-spacing: .08em; }
.brand-tel .tel { font-size: 24px; font-weight: 800; color: var(--accent); letter-spacing: -.01em; }
.brand-tel .tel:hover { color: var(--accent-dark); }

.nav-toggle {
  margin-left: auto; width: 44px; height: 44px; border: 0; background: transparent;
  display: grid; place-items: center; cursor: pointer; border-radius: 10px;
}
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); position: relative; }
.nav-toggle span::before, .nav-toggle span::after {
  content: ""; position: absolute; left: 0; width: 22px; height: 2px; background: var(--ink); transition: .25s;
}
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after { top: 0; transform: rotate(-45deg); }

/* ---------------- 深色主导航条 ---------------- */
.mainnav { position: sticky; top: 0; z-index: 60; background: var(--charcoal); }
.mainnav-in { display: flex; align-items: center; min-height: var(--nav-h); }

.nav {
  position: absolute; left: 0; right: 0; top: 100%;
  background: var(--charcoal);
  max-height: 0; overflow: hidden; transition: max-height .3s ease;
  box-shadow: 0 12px 24px rgba(0, 0, 0, .25);
}
.nav.open { max-height: 80vh; overflow-y: auto; }
.nav ul { list-style: none; margin: 0; padding: 6px 16px 14px; }
.nav > ul > li > a {
  display: block; padding: 13px 0; font-weight: 500; color: rgba(255, 255, 255, .88);
  font-size: 15px; border-bottom: 1px solid rgba(255, 255, 255, .07);
}
.nav > ul > li:last-child > a { border-bottom: 0; }
.nav > ul > li.active > a, .nav > ul > li > a:hover { color: var(--accent); }
.nav .sub { padding-left: 14px; }
.nav .sub a { display: block; padding: 9px 0; font-size: 14px; color: rgba(255, 255, 255, .6); }
.nav .sub a:hover { color: var(--accent); }

.mainnav-in > .nav-cta { display: none; }

/* ---------------- 面包屑 ---------------- */
.crumb { background: var(--bg); border-bottom: 1px solid var(--line); font-size: 13px; color: var(--ink-3); }
.crumb .wrap { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; padding-top: 11px; padding-bottom: 11px; }
.crumb a { color: var(--ink-3); }
.crumb a:hover { color: var(--brand); }
.crumb .sep { opacity: .5; }

/* ---------------- 按钮体系 ---------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 26px; border-radius: 4px; font-weight: 600; font-size: 15px;
  border: 1px solid transparent; cursor: pointer; transition: .2s; line-height: 1.3;
  letter-spacing: .02em;
}
.btn-block { width: 100%; }
/* 橙色实心（品牌动作） */
.btn-brand { background: var(--accent); color: #fff; }
.btn-brand:hover { background: var(--accent-dark); color: #fff; }
/* 白色描边（深色底上） */
.btn-outline-w { border-color: rgba(255, 255, 255, .85); color: #fff; background: transparent; }
.btn-outline-w:hover { background: #fff; color: var(--ink); }
/* 橙色实心加强（首屏） */
.btn-solid-o { background: var(--accent); color: #fff; }
.btn-solid-o:hover { background: var(--accent-dark); color: #fff; }
/* 深色描边（浅色底上） */
.btn-outline-d { border-color: var(--ink-2); color: var(--ink); background: transparent; }
.btn-outline-d:hover { border-color: var(--brand); color: var(--brand); }
/* 文字按钮 */
.btn-plain { background: transparent; color: var(--brand); border: 0; padding: 8px 4px; }
.btn-plain:hover { color: var(--accent); }
/* 兼容旧类名 */
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); color: #fff; }
.btn-ghost { border-color: var(--ink-2); color: var(--ink); background: transparent; }
.btn-ghost:hover { border-color: var(--brand); color: var(--brand); }

/* ---------------- 首屏轮播 ---------------- */
.hero-slider { position: relative; overflow: hidden; background: var(--charcoal-2); }
.slide {
  position: absolute; inset: 0; opacity: 0; transition: opacity .8s ease;
  background-size: cover; background-position: center; pointer-events: none;
}
.slide.is-on { position: relative; opacity: 1; pointer-events: auto; }
.slide::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(15, 22, 32, .58) 0%, rgba(15, 22, 32, .22) 55%, rgba(15, 22, 32, .05) 100%); }
.slide-in { position: relative; z-index: 1; display: flex; min-height: 320px; align-items: center; }
.slide-txt { max-width: 560px; padding: 56px 0; color: #fff; }
.slide-txt h1, .slide-txt h2 { color: #fff; font-size: 1.9rem; line-height: 1.3; margin-bottom: 12px; text-shadow: 0 2px 14px rgba(0, 0, 0, .35); }
.slide-txt h1 span, .slide-txt h2 span { display: block; font-size: 1.25rem; font-weight: 600; color: rgba(255, 255, 255, .92); margin-top: 6px; letter-spacing: .04em; }
.slide-txt p { color: rgba(255, 255, 255, .88); font-size: 15px; max-width: 520px; text-shadow: 0 1px 8px rgba(0, 0, 0, .4); }
.slide-btns { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }

.slide-dots {
  position: absolute; left: 0; right: 0; bottom: 16px; z-index: 2;
  display: flex; justify-content: center; gap: 10px;
}
.slide-dots button {
  width: 26px; height: 4px; border: 0; border-radius: 2px; padding: 0; cursor: pointer;
  background: rgba(255, 255, 255, .4); transition: .25s;
}
.slide-dots button.on { background: var(--accent); width: 40px; }

/* ---------------- 通栏 CTA 色带 ---------------- */
.cta-band { background: var(--accent); color: #fff; }
.cta-band-in { display: flex; flex-direction: column; gap: 14px; align-items: flex-start; padding-top: 26px; padding-bottom: 26px; }
.cta-band p { margin: 0; font-size: 19px; font-weight: 600; letter-spacing: .02em; }
.cta-band p b { font-weight: 800; }
.cta-band .btn { border-color: #fff; color: #fff; }
.cta-band .btn:hover { background: #fff; color: var(--accent-dark); }

/* ---------------- 区块通用 ---------------- */
.section { padding: 52px 0; }
.section.alt { background: var(--bg); }

.sec-head { text-align: center; margin-bottom: 34px; }
.sec-head h2 { font-size: 1.6rem; margin: 0 0 10px; letter-spacing: .06em; }
.sec-head .bar { display: block; width: 46px; height: 3px; background: var(--accent); margin: 0 auto 16px; }
.sec-head p { color: var(--ink-3); margin: 0; font-size: 14.5px; max-width: 640px; margin-left: auto; margin-right: auto; }
.sec-more { text-align: center; margin-top: 28px; }

/* ---------------- 栅格 ---------------- */
.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: 1fr; }

/* ---------------- 服务照片卡 ---------------- */
.service-card { background: #fff; border: 1px solid var(--line); overflow: hidden; transition: .25s; }
.service-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.service-card .thumb { display: block; aspect-ratio: 16 / 9; overflow: hidden; background: #eef1f5; }
.service-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.service-card:hover .thumb img { transform: scale(1.05); }
.service-card .body { padding: 18px 20px 20px; }
.service-card h3 { font-size: 1.05rem; margin-bottom: 6px; }
.service-card h3 a { color: var(--ink); }
.service-card h3 a:hover { color: var(--brand); }
.service-card p { color: var(--ink-3); font-size: 13.5px; margin: 0; }

/* ---------------- 通用卡片 ---------------- */
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; box-shadow: var(--shadow-sm); transition: .25s; height: 100%;
}
.card:hover { box-shadow: var(--shadow); transform: translateY(-3px); border-color: #d6dce4; }
.card .icon {
  width: 44px; height: 44px; border-radius: 10px; display: grid; place-items: center;
  background: #f0f5fb; color: var(--brand); font-weight: 800; margin-bottom: 14px; font-size: 16px;
}
.card h3 { font-size: 1.05rem; margin-bottom: 8px; }
.card p { color: var(--ink-2); font-size: 14px; margin: 0; }
.card .link { display: inline-block; margin-top: 12px; font-size: 14px; font-weight: 600; color: var(--brand); }

/* ---------------- 图文卡片（产品/案例） ---------------- */
.media-card { background: #fff; border: 1px solid var(--line); overflow: hidden; transition: .25s; height: 100%; display: flex; flex-direction: column; }
.media-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.media-card .thumb { aspect-ratio: 4 / 3; overflow: hidden; background: #f3f5f8; display: block; }
.media-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.media-card:hover .thumb img { transform: scale(1.05); }
/* 无封面占位：品牌渐变 + 文字 */
.thumb-ph {
  width: 100%; height: 100%; display: flex; align-items: center; justify-content: center;
  padding: 12px; text-align: center;
  background: linear-gradient(135deg, #eef4fb 0%, #f7f9fc 55%, #fdf3e0 100%);
  color: var(--brand); font-weight: 700; font-size: 17px; letter-spacing: .08em;
  line-height: 1.5;
}
.service-card .thumb-ph { font-size: 15px; }
.media-card .body { padding: 16px 18px 20px; flex: 1; display: flex; flex-direction: column; }
.media-card h3 { font-size: 1rem; margin-bottom: 6px; }
.media-card h3 a { color: var(--ink); }
.media-card h3 a:hover { color: var(--brand); }
.media-card p { font-size: 13.5px; color: var(--ink-3); margin: 0 0 12px; flex: 1;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.media-card .more-link { font-size: 13.5px; font-weight: 600; color: var(--brand); }
.media-card:hover .more-link { color: var(--accent); }

/* ---------------- 新闻列表 ---------------- */
.news-list { display: grid; gap: 0; border-top: 1px solid var(--line); }
.news-item {
  display: flex; gap: 14px; align-items: flex-start; padding: 16px 0;
  border-bottom: 1px solid var(--line); transition: .2s;
}
.news-item:hover { background: #fafbfd; }
.news-date {
  flex: none; width: 58px; text-align: center; background: var(--bg);
  border-radius: 8px; padding: 8px 0; border: 1px solid var(--line);
}
.news-date strong { display: block; font-size: 1.15rem; color: var(--accent); line-height: 1.1; }
.news-date span { font-size: 11px; color: var(--ink-3); }
.news-item .txt { flex: 1; min-width: 0; }
.news-item h3 { font-size: .96rem; margin: 0 0 4px; }
.news-item p { margin: 0; font-size: 13px; color: var(--ink-3);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* ---------------- 特性条 ---------------- */
.features { display: grid; grid-template-columns: 1fr; gap: 12px; }
.feature { background: #fff; border: 1px solid var(--line); border-left: 3px solid var(--accent); padding: 14px 16px; }
.feature strong { display: block; font-size: 14.5px; margin-bottom: 4px; }
.feature span { font-size: 13px; color: var(--ink-3); line-height: 1.7; }

/* ---------------- CTA ---------------- */
.cta {
  background: var(--charcoal); color: #fff; padding: 44px 26px; text-align: center;
}
.cta h2 { color: #fff; font-size: 1.45rem; letter-spacing: .04em; }
.cta p { color: rgba(255, 255, 255, .75); margin-bottom: 22px; font-size: 14.5px; }
.cta-btns { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }

/* ---------------- 列表页 ---------------- */
.page-head {
  position: relative; overflow: hidden; color: #fff; padding: 44px 0;
  background:
    radial-gradient(720px 280px at 88% -30%, rgba(0, 179, 196, .32), transparent 62%),
    radial-gradient(560px 260px at 6% 130%, rgba(29, 111, 208, .30), transparent 60%),
    linear-gradient(132deg, #10243d, #16344f 58%, #1b4057);
}
.page-head::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .5;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(105deg, transparent 42%, #000 78%);
  -webkit-mask-image: linear-gradient(105deg, transparent 42%, #000 78%);
}
.page-head::after {
  content: ""; position: absolute; right: -70px; top: -70px; width: 260px; height: 260px;
  border: 1px solid rgba(255,255,255,.14); border-radius: 50%; pointer-events: none;
  box-shadow: inset 0 0 0 34px rgba(255,255,255,.035), inset 0 0 0 68px rgba(255,255,255,.03);
}
.page-head .wrap { position: relative; z-index: 1; }
.page-head h1 { font-size: 1.7rem; margin: 0 0 8px; color: #fff; letter-spacing: .04em; }
.page-head h1::after { content: ""; display: block; width: 40px; height: 3px; background: var(--accent); margin-top: 12px; }
.page-head p { margin: 0; color: rgba(255, 255, 255, .72); font-size: 14px; }

/* 列表卡片：悬停浮起 + 缩略图微缩放 */
.media-card { transition: transform .28s ease, box-shadow .28s ease; }
.media-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.media-card .thumb { overflow: hidden; display: block; }
.media-card .thumb img { transition: transform .5s ease; }
.media-card:hover .thumb img { transform: scale(1.05); }

/* 列表显现动画：逐卡错峰 */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s ease, transform .6s ease; }
.reveal-in { opacity: 1; transform: translateY(0); }
.grid .media-card.reveal-in:nth-child(3n+2) { transition-delay: .08s; }
.grid .media-card.reveal-in:nth-child(3n+3) { transition-delay: .16s; }

.layout { display: grid; gap: 26px; padding: 36px 0; }
.sidebar { display: grid; gap: 16px; align-content: start; }
.side-card { background: #fff; border: 1px solid var(--line); padding: 20px; box-shadow: var(--shadow-sm); }
.side-card h3 { font-size: 1rem; padding-bottom: 10px; border-bottom: 2px solid var(--accent); margin-bottom: 12px; display: inline-block; }
.side-card ul { list-style: none; padding: 0; margin: 0; }
.side-card li a { display: block; padding: 8px 0; font-size: 14px; color: var(--ink-2); border-bottom: 1px dashed #edf0f4; }
.side-card li:last-child a { border-bottom: 0; }
.side-card li a:hover { color: var(--brand); padding-left: 4px; }
.side-card .contact-line { display: flex; gap: 8px; font-size: 14px; color: var(--ink-2); margin-bottom: 10px; }
.side-card .contact-line b { color: var(--ink); }

.list-toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; font-size: 13px; color: var(--ink-3); }

/* ---------------- 分页 ---------------- */
.pagination { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; margin: 30px 0 10px; }
.pagination a, .pagination span {
  min-width: 36px; height: 36px; padding: 0 12px; display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--line); border-radius: 4px; font-size: 14px; color: var(--ink-2); background: #fff;
}
.pagination .current { background: var(--brand); border-color: var(--brand); color: #fff; font-weight: 600; }
.pagination a:hover { border-color: var(--brand); color: var(--brand); }

/* ---------------- 详情页 ---------------- */
.detail-head { padding: 26px 0 18px; border-bottom: 1px solid var(--line); margin-bottom: 22px; }
.detail-head h1 { font-size: 1.45rem; margin-bottom: 10px; }
.detail-meta { display: flex; flex-wrap: wrap; gap: 14px; font-size: 13px; color: var(--ink-3); }
.detail-meta span::before { content: "·"; margin-right: 6px; color: var(--accent); }

.prose { font-size: 15.5px; color: #26313f; line-height: 1.9; }
.prose h2 { font-size: 1.25rem; margin: 1.4em 0 .6em; padding-left: 12px; border-left: 4px solid var(--accent); }
.prose h3 { font-size: 1.08rem; margin: 1.2em 0 .5em; }
.prose p { margin: 0 0 1.1em; }
.prose img { border-radius: 8px; margin: 1.2em auto; box-shadow: var(--shadow-sm); }
.prose a { border-bottom: 1px solid rgba(26, 95, 168, .3); }
.prose blockquote {
  margin: 1.2em 0; padding: 14px 18px; background: var(--bg);
  border-left: 4px solid var(--accent); border-radius: 0 8px 8px 0; color: var(--ink-2);
}
.prose table { margin: 1.2em 0; font-size: 14px; }
.prose th, .prose td { border: 1px solid var(--line); padding: 9px 12px; }
.prose th { background: var(--bg); font-weight: 600; }
.prose ul, .prose ol { margin: 0 0 1.1em; }
.prose li { margin-bottom: .4em; }
.prose iframe, .prose video { max-width: 100%; border-radius: 8px; }

.prev-next { display: grid; gap: 10px; margin: 28px 0 0; padding-top: 18px; border-top: 1px solid var(--line); font-size: 14px; }
.prev-next a { color: var(--ink-2); display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.prev-next a:hover { color: var(--brand); }

.related { margin-top: 34px; }
.related h2 { font-size: 1.15rem; margin-bottom: 14px; }

/* ---------------- 表单 ---------------- */
.form-grid { display: grid; gap: 14px; }
.field label { display: block; font-size: 13.5px; font-weight: 600; margin-bottom: 6px; color: var(--ink-2); }
.field label .req { color: #e0564a; margin-left: 2px; }
.field input, .field textarea, .field select {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: 6px;
  font-size: 15px; font-family: inherit; color: var(--ink); background: #fff; transition: .2s;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(245, 166, 35, .15);
}
.field textarea { min-height: 110px; resize: vertical; }
.captcha-row { display: flex; gap: 10px; align-items: center; }
.captcha-row input { flex: 1; }
.captcha-row img { height: 46px; border-radius: 6px; border: 1px solid var(--line); cursor: pointer; }
.form-tip { font-size: 12.5px; color: var(--ink-3); }
.alert { padding: 12px 14px; border-radius: 6px; font-size: 14px; margin-bottom: 14px; display: none; }
.alert.ok { background: #e9f8ef; color: #1a7f4b; display: block; }
.alert.err { background: #fdeceb; color: #c0392b; display: block; }

/* ---------------- 页脚 ---------------- */
.footer { background: var(--charcoal-2); color: rgba(255, 255, 255, .62); padding: 46px 0 22px; font-size: 13.5px; margin-top: 0; }
.footer h4 { color: #fff; font-size: 14.5px; margin-bottom: 14px; letter-spacing: .04em; position: relative; padding-bottom: 10px; }
.footer h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 22px; height: 2px; background: var(--accent); }
.footer a { color: rgba(255, 255, 255, .62); }
.footer a:hover { color: var(--accent); }
.footer-grid { display: grid; gap: 28px; }
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { margin-bottom: 9px; }
.friends-row {
  margin-top: 30px; padding-top: 16px; border-top: 1px solid rgba(255, 255, 255, .08);
  display: flex; flex-wrap: wrap; gap: 10px 18px; font-size: 13px;
}
.friends-row span { color: rgba(255, 255, 255, .4); }
.footer-bottom {
  margin-top: 14px; padding-top: 16px; border-top: 1px solid rgba(255, 255, 255, .08);
  display: flex; flex-direction: column; gap: 8px; font-size: 12.5px; color: rgba(255, 255, 255, .42);
}

/* ---------------- 浮动联系 ---------------- */
.float-contact {
  position: fixed; right: 14px; bottom: 18px; z-index: 50;
  display: flex; flex-direction: column; gap: 10px;
}
.float-contact a {
  width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center;
  background: var(--brand); color: #fff; box-shadow: var(--shadow); font-size: 12px; font-weight: 700;
}
.float-contact a.alt { background: var(--accent); }

/* ---------------- 404 ---------------- */
.notfound { text-align: center; padding: 70px 16px; }
.notfound .code { font-size: 4.5rem; font-weight: 800; color: var(--brand); letter-spacing: -.04em; line-height: 1; }
.notfound p { color: var(--ink-2); margin: 10px 0 22px; }

/* ---------------- 平板 ---------------- */
@media (min-width: 640px) {
  body { font-size: 15.5px; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .prev-next { grid-template-columns: repeat(2, 1fr); }
  .form-grid { grid-template-columns: repeat(2, 1fr); }
  .form-grid .full { grid-column: 1 / -1; }
  .features { grid-template-columns: repeat(2, 1fr); }
  .slide-in { min-height: 400px; }
  .slide-txt h1, .slide-txt h2 { font-size: 2.3rem; }
  .slide-txt h1 span, .slide-txt h2 span { font-size: 1.45rem; }
  .cta-band-in { flex-direction: row; justify-content: space-between; align-items: center; }
}

/* ---------------- 桌面 ---------------- */
@media (min-width: 960px) {
  :root { --nav-h: 58px; }
  body { font-size: 16px; }
  .section { padding: 76px 0; }
  .brand-tel { display: block; }
  .sec-head h2 { font-size: 1.9rem; }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid { gap: 24px; }
  .nav-toggle { display: none; }
  .nav {
    position: static; max-height: none; overflow: visible; background: transparent;
    box-shadow: none;
  }
  .nav ul { display: flex; align-items: center; gap: 2px; padding: 0; }
  .nav > ul > li { position: relative; }
  .nav > ul > li > a { border: 0; padding: 17px 18px; font-size: 15px; position: relative; }
  .nav > ul > li > a::after {
    content: ""; position: absolute; left: 18px; right: 18px; bottom: 0; height: 3px;
    background: var(--accent); transform: scaleX(0); transition: transform .25s;
  }
  .nav > ul > li > a:hover::after, .nav > ul > li.active > a::after { transform: scaleX(1); }
  .nav > ul > li.active > a, .nav > ul > li > a:hover { color: var(--accent); }
  .nav .sub {
    position: absolute; top: 100%; left: 0; min-width: 190px; padding: 8px;
    background: var(--charcoal); box-shadow: var(--shadow);
    opacity: 0; visibility: hidden; transform: translateY(6px); transition: .2s; z-index: 10; display: block;
  }
  .nav > ul > li:hover .sub { opacity: 1; visibility: visible; transform: translateY(0); }
  .nav .sub a { padding: 10px 14px; color: rgba(255, 255, 255, .75); }
  .nav .sub a:hover { color: var(--accent); }
  .mainnav-in > .nav-cta { display: inline-flex; margin-left: auto; padding: 9px 20px; font-size: 14px; }

  .layout { grid-template-columns: 1fr 300px; align-items: start; }
  .layout.full { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr 1.2fr; }
  .footer-bottom { flex-direction: row; justify-content: space-between; align-items: center; }
  .cta { padding: 60px 40px; }
  .page-head { padding: 52px 0; }
  .page-head h1 { font-size: 2rem; }

  .slide-in { min-height: 520px; }
  .slide-txt { padding: 70px 0; }
  .slide-txt h1, .slide-txt h2 { font-size: 2.8rem; }
  .slide-txt h1 span, .slide-txt h2 span { font-size: 1.6rem; }
  .slide-txt p { font-size: 16px; }
  .cta-band p { font-size: 22px; }
}

/* ================= v5 新增：logo / 页脚统计 / 产品图集 / 交互增强 ================= */

/* 品牌栏真实 logo */
.logo-img { display: block; height: 52px; width: auto; }
.brandbar { padding: 10px 0; }
.brandbar-in { min-height: 72px; }

/* 页脚访问统计 */
.site-stats {
  display: flex; flex-wrap: wrap; gap: 8px 26px; align-items: center;
  padding: 14px 0; margin-top: 8px; border-top: 1px solid rgba(255,255,255,.08);
  color: rgba(255,255,255,.65); font-size: 13.5px;
}
.site-stats b { color: var(--accent); font-size: 17px; font-weight: 700; margin-left: 6px; font-variant-numeric: tabular-nums; }

/* 产品图集轮播 */
.p-gallery { position: relative; overflow: hidden; background: #0e1420; margin-bottom: 26px; box-shadow: var(--shadow); }
.p-slides { position: relative; aspect-ratio: 16 / 9; max-height: 460px; width: 100%; }
.p-slide { position: absolute; inset: 0; opacity: 0; transition: opacity .6s ease; }
.p-slide.is-on { opacity: 1; }
.p-slide img { width: 100%; height: 100%; object-fit: contain; background: #0e1420; }
.p-dots {
  position: absolute; bottom: 12px; left: 0; right: 0;
  display: flex; gap: 8px; justify-content: center; z-index: 3;
}
.p-dots button {
  width: 10px; height: 10px; border-radius: 50%; border: 0; padding: 0;
  background: rgba(255,255,255,.4); cursor: pointer; transition: .25s;
}
.p-dots button.on { background: var(--accent); transform: scale(1.25); }
.p-nav {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 3;
  width: 40px; height: 40px; border: 0; border-radius: 50%;
  background: rgba(14,20,32,.45); color: #fff; font-size: 22px; line-height: 1;
  cursor: pointer; opacity: 0; transition: .25s;
}
.p-nav.prev { left: 12px; }
.p-nav.next { right: 12px; }
.p-nav:hover { background: var(--accent); }
.p-gallery:hover .p-nav { opacity: 1; }
@media (max-width: 639px) { .p-nav { display: none; } }

/* 返回顶部 */
.back-top {
  position: fixed; right: 18px; bottom: 96px; z-index: 80;
  width: 42px; height: 42px; border: 0; border-radius: 50%;
  background: var(--charcoal); color: #fff; font-size: 18px;
  box-shadow: var(--shadow); cursor: pointer;
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: .3s;
}
.back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top:hover { background: var(--accent); }

/* 滚动显现动画（基础定义见列表页区块，此处保留兼容） */
@media (prefers-reduced-motion: reduce) {
  .reveal, .reveal-in { opacity: 1; transform: none; transition: none; }
}

/* 悬停微交互强化 */
.media-card .more-link, .btn, .side-card li a { will-change: transform; }
html { scroll-behavior: smooth; }

/* ---------------- 全站灰度模式（如 918 纪念日，后台一键开关） ---------------- */
html.gray { filter: grayscale(100%); -webkit-filter: grayscale(100%); }
html.gray .btn-brand, html.gray .hero-badge { filter: grayscale(100%); }

/* ---------------- 浮动公告栏（后台可控显示/隐藏） ---------------- */
.notice-bar {
  position: fixed; left: 18px; bottom: 96px; z-index: 900;
  max-width: min(420px, calc(100vw - 36px));
  animation: noticeUp .5s cubic-bezier(.2, .8, .25, 1) both;
}
.notice-bar.is-hide { display: none; }
.notice-in {
  display: flex; align-items: center; gap: 10px;
  background: #fff; border: 1px solid var(--line); border-left: 4px solid var(--accent);
  border-radius: 12px; padding: 12px 12px 12px 14px;
  box-shadow: 0 14px 40px rgba(9, 30, 55, .18);
}
.notice-ico {
  flex: none; font-size: 12px; font-weight: 700; color: #fff; letter-spacing: .08em;
  background: linear-gradient(135deg, var(--brand), var(--accent));
  border-radius: 8px; padding: 5px 8px;
}
.notice-body { font-size: 13.5px; color: var(--ink-2); line-height: 1.6; }
.notice-body a { color: var(--brand); text-decoration: none; }
.notice-body a:hover { text-decoration: underline; }
.notice-close {
  flex: none; width: 26px; height: 26px; border: 0; border-radius: 8px; cursor: pointer;
  background: transparent; color: var(--ink-3); font-size: 17px; line-height: 1;
}
.notice-close:hover { background: #f1f4f8; color: var(--ink); }
@keyframes noticeUp { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: translateY(0); } }
@media (max-width: 640px) {
  .notice-bar { left: 12px; right: 12px; bottom: 84px; max-width: none; }
}

/* 内页 hero 标题入场 */
.page-head h1, .page-head p { animation: phIn .65s ease both; }
.page-head p { animation-delay: .1s; }
@keyframes phIn { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) {
  .page-head h1, .page-head p { animation: none; }
  .notice-bar { animation: none; }
}

/* 文章正文配图与表格（新闻图文内容） */
.prose figure { margin: 1.5em 0; }
.prose figure img { display: block; max-width: 100%; height: auto; margin: 0 auto; border: 1px solid var(--line); }
.prose figcaption { text-align: center; font-size: 13px; color: var(--ink-3); margin-top: 10px; }
.prose .table-wrap { overflow-x: auto; }
.prose .table-wrap table { width: 100%; border-collapse: collapse; }

/* ================= v8：banner Ken Burns / 箭头 ================= */
.slide::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background-image: inherit; background-size: cover; background-position: center;
  transform: scale(1.02);
}
.slide.is-on::before { animation: kenburns 10s ease-out forwards; }
@keyframes kenburns { from { transform: scale(1.02); } to { transform: scale(1.09); } }
.slide-in { position: relative; z-index: 1; }
.slide-arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 3;
  width: 44px; height: 44px; border: 0; border-radius: 50%; cursor: pointer;
  background: rgba(15, 22, 32, .35); color: #fff; font-size: 22px; line-height: 1;
  opacity: 0; transition: .25s; backdrop-filter: blur(4px);
}
.hero-slider:hover .slide-arrow { opacity: 1; }
.slide-arrow.prev { left: 18px; }
.slide-arrow.next { right: 18px; }
.slide-arrow:hover { background: var(--brand); }
@media (prefers-reduced-motion: reduce) {
  .slide::before { animation: none !important; }
}

/* ================= v8：栏目页大图 hero ================= */
.page-head { position: relative; }
.page-head.ph-img {
  background-size: cover; background-position: center 40%; overflow: hidden;
}
.page-head.ph-img::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(13, 22, 33, .9) 8%, rgba(13, 22, 33, .72) 45%, rgba(13, 22, 33, .38) 100%);
}
.page-head.ph-img .wrap { position: relative; z-index: 1; }
.page-head.ph-img h1, .page-head.ph-img p { animation: phIn .65s ease both; }

/* ================= v8：公安备案图标 ================= */
/* 备案行：ICP 备案号与公安备案号横向排列，图标只属于公安备案 */
.beian-row { display: inline-flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.beian-row .icp-link { color: inherit; }
.beian-row .beian-sep { font-style: normal; opacity: .45; }
.police-link { display: inline-flex; align-items: center; gap: 5px; color: inherit; }
.police-link:hover { color: var(--brand); }
.police-ico { flex: none; border-radius: 2px; }
.beian-ico { flex: none; width: 14px; height: 14px; object-fit: contain; }

/* ================= v8：文章一键分享 ================= */
.share-row {
  display: flex; align-items: center; gap: 8px; margin-top: 14px;
  padding-top: 12px; border-top: 1px dashed var(--line);
}
.share-label { font-size: 13px; color: var(--ink-3); }
.share-btn {
  width: 30px; height: 30px; border: 1px solid var(--line); border-radius: 8px;
  background: #fff; color: var(--ink-2); cursor: pointer; display: inline-grid; place-items: center;
  transition: .2s;
}
.share-btn:hover { color: #fff; background: var(--brand); border-color: var(--brand); transform: translateY(-2px); }
.share-done { font-size: 12.5px; color: var(--brand); }
.share-modal {
  position: fixed; inset: 0; z-index: 1100; display: none;
  background: rgba(9, 18, 28, .55); align-items: center; justify-content: center; padding: 20px;
}
.share-modal.is-open { display: flex; }
.share-modal-card {
  background: #fff; border-radius: 14px; padding: 26px 26px 22px; max-width: 420px; width: 100%;
  box-shadow: 0 24px 70px rgba(9, 18, 28, .35); position: relative; animation: noticeUp .3s ease both;
}
.share-modal-card h3 { margin: 0 0 8px; font-size: 1.05rem; }
.share-modal-card p { font-size: 13.5px; color: var(--ink-2); line-height: 1.7; margin: 0 0 14px; }
.share-modal-close {
  position: absolute; top: 10px; right: 12px; border: 0; background: none; cursor: pointer;
  font-size: 20px; color: var(--ink-3); line-height: 1;
}
.share-modal-url { display: flex; gap: 8px; }
.share-modal-url input {
  flex: 1; border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; font-size: 13px; color: var(--ink-2);
  min-width: 0;
}
.btn-sm { padding: 7px 14px; font-size: 13px; }

/* ================= v8：产品卡悬停遮罩 ================= */
.media-card .thumb { position: relative; }
.thumb-veil {
  position: absolute; inset: 0; display: grid; place-items: center;
  background: linear-gradient(180deg, rgba(13, 22, 33, 0) 30%, rgba(13, 22, 33, .55) 100%);
  opacity: 0; transition: .3s;
}
.media-card:hover .thumb-veil { opacity: 1; }
.thumb-go {
  display: inline-flex; align-items: center; gap: 6px; color: #fff; font-size: 13px; letter-spacing: .06em;
  border: 1px solid rgba(255, 255, 255, .75); border-radius: 999px; padding: 7px 16px;
  transform: translateY(8px); transition: .3s; background: rgba(13, 22, 33, .25); backdrop-filter: blur(2px);
}
.media-card:hover .thumb-go { transform: translateY(0); }
.media-card { position: relative; }
.media-card::after {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px;
  background: linear-gradient(90deg, var(--brand), var(--accent));
  transform: scaleX(0); transform-origin: left; transition: transform .35s ease;
}
.media-card:hover::after { transform: scaleX(1); }

/* ================= v8：服务图片覆盖卡 ================= */
.service-card.sc-cover { border: 0; background: none; }
.sc-link {
  position: relative; display: block; aspect-ratio: 4 / 3; border-radius: 10px; overflow: hidden;
  color: #fff; isolation: isolate;
}
.sc-img {
  position: absolute; inset: 0; z-index: -2;
  background-image: var(--sc-img); background-size: cover; background-position: center;
  transition: transform .6s ease;
}
.sc-veil {
  position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(180deg, rgba(13, 22, 33, .18) 0%, rgba(13, 22, 33, .82) 100%);
  transition: .35s;
}
.sc-txt { position: absolute; left: 0; right: 0; bottom: 0; padding: 22px 20px; display: block; }
.sc-txt strong { display: block; font-size: 1.12rem; letter-spacing: .04em; }
.sc-txt em { display: block; font-style: normal; font-size: 13px; line-height: 1.7; color: rgba(255, 255, 255, .82); margin-top: 7px;
  max-height: 0; opacity: 0; overflow: hidden; transition: max-height .4s ease, opacity .35s ease, margin .35s ease; }
.sc-txt .sc-go { display: inline-block; font-size: 12.5px; letter-spacing: .1em; color: var(--accent); margin-top: 9px;
  transform: translateY(6px); opacity: .85; transition: .3s; }
.service-card.sc-cover:hover .sc-img { transform: scale(1.06); }
.service-card.sc-cover:hover .sc-veil { background: linear-gradient(180deg, rgba(29, 111, 208, .38) 0%, rgba(13, 22, 33, .88) 100%); }
.service-card.sc-cover:hover .sc-txt em { max-height: 84px; opacity: 1; }
.service-card.sc-cover:hover .sc-txt .sc-go { transform: translateY(0); opacity: 1; }
@media (hover: none) {
  .sc-txt em { max-height: 84px; opacity: 1; }
}

/* ================= v8：为什么选我们（图标 + 数字统计） ================= */
.feature { display: grid; grid-template-columns: 40px 1fr; grid-template-rows: auto auto; column-gap: 12px; align-items: center; }
.feature .f-ico {
  grid-row: span 2; width: 40px; height: 40px; padding: 8px; box-sizing: border-box;
  color: var(--brand); background: rgba(29, 111, 208, .08); border-radius: 10px;
}
.feature strong { font-size: 14.5px; }
.stat-strip {
  margin-top: 34px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px;
  background: var(--charcoal); border-radius: 14px; padding: 26px 18px;
}
.stat { text-align: center; color: #fff; }
.stat b { display: block; font-size: 2rem; font-weight: 800; letter-spacing: .02em; color: var(--accent); font-variant-numeric: tabular-nums; }
.stat span { font-size: 13px; color: rgba(255, 255, 255, .75); }
@media (max-width: 640px) {
  .stat-strip { grid-template-columns: repeat(2, 1fr); gap: 22px 10px; }
  .slide-arrow { display: none; }
}

/* ================= v9：首页轮播横向滑动轨道 ================= */
.hero-slider { touch-action: pan-y; }
.hero-track {
  display: flex; transition: transform .75s cubic-bezier(.77, 0, .18, 1);
  will-change: transform;
}
.hero-slider .slide {
  position: relative; flex: 0 0 100%; min-width: 100%;
  opacity: 1; pointer-events: auto; inset: auto;
}
.slide-bg {
  position: absolute; inset: 0; overflow: hidden;
  background-size: cover; background-position: center;
}
.slide-bg::before {
  content: ""; position: absolute; inset: 0;
  background-image: inherit; background-size: cover; background-position: center;
  transform: scale(1.02);
}
.slide-bg::before {
  animation: kenburns 11s ease-out forwards;
}
@keyframes kenburns { from { transform: scale(1.02); } to { transform: scale(1.1); } }
.hero-slider .slide::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(15, 22, 32, .58) 0%, rgba(15, 22, 32, .22) 55%, rgba(15, 22, 32, .05) 100%);
}
.hero-slider .slide-in { position: relative; z-index: 1; min-height: 460px; }
@media (max-width: 960px) { .hero-slider .slide-in { min-height: 400px; } }
@media (max-width: 640px) { .hero-slider .slide-in { min-height: 340px; } }
@media (prefers-reduced-motion: reduce) {
  .hero-track { transition: none; }
  .slide-bg::before { animation: none !important; }
}

/* ================= v9：栏目页 hero 与首页视觉同量级 ================= */
.page-head { padding: 72px 0; }
.page-head.ph-img {
  min-height: 460px; display: flex; align-items: center; padding: 64px 0;
}
.page-head.ph-img h1 { font-size: 2.15rem; }
.page-head.ph-img p { font-size: 15.5px; max-width: 620px; }
@media (max-width: 640px) {
  .page-head { padding: 56px 0; }
  .page-head.ph-img { min-height: 340px; padding: 48px 0; }
  .page-head.ph-img h1 { font-size: 1.7rem; }
}

/* ================= v9：公安备案徽标（金色圆盾 + 红星） ================= */
.police-ico { flex: none; border-radius: 50%; box-shadow: 0 0 0 .5px rgba(184, 134, 11, .45); }

/* ================= v10：为什么选择我们（HTML5 交互强化） ================= */
.features .feature {
  border-radius: 12px; padding: 14px; margin: -14px; transition: transform .35s ease, box-shadow .35s ease, background .35s ease;
}
.features .feature:hover {
  transform: translateY(-5px); background: #fff;
  box-shadow: 0 18px 44px rgba(9, 30, 55, .12);
}
.features .feature .f-ico {
  transition: transform .45s cubic-bezier(.34, 1.56, .64, 1), background .3s, color .3s;
}
.features .feature:hover .f-ico {
  transform: scale(1.12) rotate(-6deg);
  background: linear-gradient(135deg, var(--brand), var(--accent)); color: #fff;
}
/* 滚动显现错峰：每个特性卡依次入场 */
.features .feature { transition-delay: 0s; }
.features .feature:nth-child(2) { transition-delay: .08s; }
.features .feature:nth-child(3) { transition-delay: .16s; }
.features .feature:nth-child(4) { transition-delay: .24s; }
@media (prefers-reduced-motion: reduce) {
  .features .feature, .features .feature .f-ico { transition: none; }
}

/* 统计条：渐变描边呼吸 + 数字进入弹跳 */
.stat-strip {
  position: relative; overflow: hidden;
}
.stat-strip::before {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px;
  background: linear-gradient(90deg, var(--brand), var(--accent), var(--brand));
  background-size: 200% 100%; animation: statGlow 4s linear infinite;
}
@keyframes statGlow { from { background-position: 0 0; } to { background-position: 200% 0; } }
.stat b { transition: transform .3s ease; }
.stat:hover b { transform: scale(1.12); }
.stat { transition: transform .3s ease; }
.stat:hover { transform: translateY(-3px); }

/* ================= v11：首页内容板块多种 HTML5 动效 ================= */
/* 后台「首页装修 → 动效风格」可选，类名由服务端下发：fx-classic / zoom / shine / flip / tilt / mono / wave */
.effect-grid { --fx-ease: cubic-bezier(.19, 1, .22, 1); }

/* 1) zoom 缩放浮现 + 图片放大 */
.fx-zoom .fx-item.reveal { opacity: 0; transform: scale(.88); }
.fx-zoom .fx-item.reveal-in { opacity: 1; transform: scale(1); transition: opacity .55s var(--fx-ease), transform .7s var(--fx-ease); }
.fx-zoom .fx-item:hover .thumb img { transform: scale(1.14) rotate(.5deg); }

/* 2) shine 流光扫过 */
.fx-shine .fx-item { position: relative; overflow: hidden; }
.fx-shine .fx-item::after {
  content: ""; position: absolute; top: -60%; left: -75%; width: 45%; height: 220%;
  background: linear-gradient(100deg, rgba(255,255,255,0) 0%, rgba(255,255,255,.62) 50%, rgba(255,255,255,0) 100%);
  transform: rotate(18deg) translateX(-120%); pointer-events: none; opacity: 0;
  transition: transform .95s var(--fx-ease), opacity .3s;
}
.fx-shine .fx-item:hover::after { transform: rotate(18deg) translateX(330%); opacity: 1; }
.fx-shine .fx-item:hover { border-color: rgba(29, 111, 208, .34); box-shadow: 0 18px 44px rgba(9, 30, 55, .14); }

/* 3) flip 3D 翻转视角 */
.fx-flip { perspective: 1200px; }
.fx-flip .fx-item.reveal { opacity: 0; transform: rotateY(-16deg) translateY(26px); }
.fx-flip .fx-item.reveal-in { opacity: 1; transform: none; transition: opacity .5s var(--fx-ease), transform .78s var(--fx-ease); }
.fx-flip .fx-item:hover { transform: rotateY(3deg) rotateX(2deg) translateY(-4px); box-shadow: 0 22px 48px rgba(9, 30, 55, .16); }

/* 4) tilt 鼠标跟随 3D 倾斜（JS 计算角度） */
.fx-tilt { perspective: 1000px; }
.fx-tilt .fx-item { transform-style: preserve-3d; transition: transform .32s ease-out, box-shadow .32s ease-out; }
.fx-tilt .fx-item .body { transform: translateZ(26px); }
.fx-tilt .fx-item .thumb { transform: translateZ(0); }

/* 5) mono 黑白到彩色 + 蒙版揭示 */
.fx-mono .fx-item.reveal { opacity: 0; clip-path: inset(14% 0 0 0); }
.fx-mono .fx-item.reveal-in { opacity: 1; clip-path: inset(0); transition: opacity .6s, clip-path .85s var(--fx-ease); }
.fx-mono .fx-item .thumb img { filter: grayscale(.9) contrast(1.04); transition: filter .6s ease, transform .6s ease; }
.fx-mono .fx-item:hover .thumb img { filter: none; transform: scale(1.06); }

/* 6) wave 波浪错峰入场 */
.fx-wave .fx-item.reveal { opacity: 0; transform: translateY(36px) scale(.97); }
.fx-wave .fx-item.reveal-in { opacity: 1; transform: none; transition: opacity .5s var(--fx-ease), transform .72s var(--fx-ease); }
.fx-wave .fx-item:nth-child(3n+1) { transition-delay: .02s; }
.fx-wave .fx-item:nth-child(3n+2) { transition-delay: .1s; }
.fx-wave .fx-item:nth-child(3n+3) { transition-delay: .18s; }

@media (prefers-reduced-motion: reduce) {
  .effect-grid .fx-item, .effect-grid .fx-item * { transition: none !important; transform: none !important; clip-path: none !important; }
}

/* 服务卡图片改用 img 输出，避免内联样式转义问题 */
.sc-img { background: #e9eef5; }
.sc-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.side-card .side-more { display: inline-block; margin-top: 12px; font-size: 13px; font-weight: 600; color: var(--brand); }

/* ================= v11：右下角悬浮栏（电话 / 微信 / 留言）+ 返回顶部避让 ================= */
.float-rail {
  position: fixed; right: 14px; bottom: calc(18px + env(safe-area-inset-bottom, 0px)); z-index: 60;
  display: flex; flex-direction: column; gap: 10px; align-items: center;
}
.fr-item { position: relative; }
.fr-btn {
  display: grid; place-items: center; width: 46px; height: 46px; padding: 0;
  border: 0; border-radius: 50%; background: var(--brand); color: #fff; cursor: pointer;
  box-shadow: 0 10px 24px rgba(9, 30, 55, .22);
  transition: transform .25s ease, background .25s ease;
}
.fr-btn:hover { transform: translateY(-3px); background: #1a5fb8; }
.fr-btn.fr-btn-accent { background: var(--accent); }
.fr-btn.fr-btn-accent:hover { background: #d97706; }
.fr-btn::after {
  content: attr(data-tip); position: absolute; right: 58px; top: 50%;
  transform: translateY(-50%) translateX(6px);
  background: rgba(16, 26, 40, .92); color: #fff; font-size: 12px; line-height: 1;
  padding: 7px 10px; border-radius: 6px; white-space: nowrap;
  opacity: 0; pointer-events: none; transition: .22s ease;
}
.fr-btn:hover::after, .fr-btn:focus-visible::after { opacity: 1; transform: translateY(-50%) translateX(0); }
@media (max-width: 640px) { .fr-btn::after { display: none; } }

/* 微信二维码面板：悬停 / 点击展开 */
.fr-qr {
  position: absolute; right: 58px; bottom: -4px; width: 168px; padding: 10px 10px 8px;
  background: #fff; border: 1px solid var(--line); border-radius: 10px; text-align: center;
  box-shadow: 0 18px 40px rgba(9, 30, 55, .24);
  opacity: 0; visibility: hidden; transform: translateX(10px) scale(.94); transform-origin: right bottom;
  transition: .28s cubic-bezier(.19, 1, .22, 1); pointer-events: none;
}
.fr-qr img { width: 100%; height: auto; display: block; border-radius: 6px; }
.fr-qr span { display: block; margin-top: 6px; font-size: 12px; color: var(--ink-3); }
.fr-qr::after {
  content: ""; position: absolute; right: -6px; bottom: 20px; width: 12px; height: 12px;
  background: #fff; transform: rotate(45deg); border-right: 1px solid var(--line); border-top: 1px solid var(--line);
}
.fr-wechat:hover .fr-qr, .fr-wechat:focus-within .fr-qr, .fr-wechat.open .fr-qr {
  opacity: 1; visibility: visible; transform: none; pointer-events: auto;
}
@media (max-width: 640px) {
  .fr-qr { right: 54px; width: 148px; }
}
/* 返回顶部：默认抬到悬浮栏上方，JS 会按实际高度精确避让 */
.back-top { right: 18px; bottom: 190px; }

/* ============================================================
   v12：可视化页面（/p/）与活动邀请（/activity/）通用样式
   ============================================================ */
.b-sec { padding: 64px 0; }
.b-sec-alt { background: #f4f7fb; }
.b-narrow { max-width: 940px; }
.b-head { text-align: center; margin-bottom: 34px; }
.b-head h2 { font-size: 1.75rem; margin: 0 0 10px; color: var(--ink); }
.b-head p { margin: 0 auto; max-width: 720px; color: var(--ink-2); font-size: 15px; line-height: 1.8; }
.b-kicker { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .12em; color: var(--brand); text-transform: uppercase; margin-bottom: 10px; }

/* 首屏 */
.b-hero { position: relative; min-height: 460px; display: flex; align-items: center; background-size: cover; background-position: center; color: #fff; }
.b-hero-short { min-height: 340px; }
.b-hero-tall { min-height: 560px; }
.b-hero-mask { position: absolute; inset: 0; background: linear-gradient(100deg, rgba(9,30,55,.86) 0%, rgba(9,30,55,.62) 52%, rgba(9,30,55,.32) 100%); }
.b-hero-in { position: relative; z-index: 1; padding: 60px 0; }
.b-hero-txt { max-width: 680px; }
.b-hero-center .b-hero-txt { margin: 0 auto; text-align: center; }
.b-hero h1 { font-size: 2.35rem; line-height: 1.3; margin: 0 0 14px; font-weight: 700; }
.b-hero h1 span { display: block; color: var(--accent); }
.b-hero p { font-size: 16px; line-height: 1.9; color: rgba(255,255,255,.88); margin: 0 0 24px; }
.b-hero-btns { display: flex; gap: 12px; flex-wrap: wrap; }
.b-hero-center .b-hero-btns { justify-content: center; }
.b-hero-note { margin-top: 18px; font-size: 13px; color: rgba(255,255,255,.7); }

/* 图文左右 */
.b-split { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; }
.b-split-right .b-split-media { order: 2; }
.b-split-media img { width: 100%; border-radius: 14px; box-shadow: var(--shadow); display: block; }
.b-split-txt h2 { font-size: 1.6rem; margin: 0 0 14px; }
.b-lead { color: var(--ink-2); line-height: 1.9; font-size: 15px; margin: 0 0 16px; }
.b-bullets { list-style: none; padding: 0; margin: 0 0 22px; display: grid; gap: 10px; }
.b-bullets li { position: relative; padding-left: 26px; color: var(--ink-2); font-size: 14.5px; line-height: 1.7; }
.b-bullets li::before { content: ""; position: absolute; left: 0; top: 7px; width: 14px; height: 14px; border-radius: 50%; background: rgba(26,95,168,.12); box-shadow: inset 0 0 0 2px var(--brand); }

/* 卡片 */
.b-grid { display: grid; gap: 20px; }
.b-cols-2 { grid-template-columns: repeat(2, 1fr); }
.b-cols-3 { grid-template-columns: repeat(3, 1fr); }
.b-cols-4 { grid-template-columns: repeat(4, 1fr); }
.b-card { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 24px 22px; transition: .28s ease; display: flex; flex-direction: column; }
.b-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(26,95,168,.26); }
.b-ico { display: inline-grid; place-items: center; width: 44px; height: 44px; border-radius: 12px; background: rgba(26,95,168,.1); color: var(--brand); font-size: 20px; margin-bottom: 14px; }
.b-card h3 { font-size: 1.05rem; margin: 0 0 8px; }
.b-card h3 a { color: inherit; }
.b-card p { margin: 0; color: var(--ink-2); font-size: 14px; line-height: 1.8; }
.b-more { margin-top: 12px; font-size: 13px; font-weight: 600; color: var(--brand); }

/* 数字统计 */
.b-stats { background: linear-gradient(120deg, var(--brand-dark), var(--brand)); color: #fff; padding: 42px 0; }
.b-stats-in { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 24px; text-align: center; }
.b-stat strong { display: block; font-size: 2.15rem; font-weight: 700; letter-spacing: .01em; }
.b-stat strong em { font-style: normal; font-size: 1rem; margin-left: 2px; }
.b-stat span { display: block; margin-top: 6px; font-size: 13.5px; color: rgba(255,255,255,.78); }

/* 流程步骤 */
.b-steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 20px; counter-reset: step; }
.b-steps li { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 22px 20px; position: relative; }
.b-step-no { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--brand); color: #fff; font-weight: 700; font-size: 15px; margin-bottom: 12px; }
.b-steps h3 { font-size: 1rem; margin: 0 0 6px; }
.b-steps p { margin: 0; color: var(--ink-2); font-size: 13.5px; line-height: 1.75; }

/* FAQ */
.b-faq { background: #fff; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.b-faq details { border-bottom: 1px solid var(--line); }
.b-faq details:last-child { border-bottom: 0; }
.b-faq summary { cursor: pointer; padding: 18px 22px; font-weight: 600; font-size: 15px; list-style: none; position: relative; padding-right: 48px; }
.b-faq summary::-webkit-details-marker { display: none; }
.b-faq summary::after { content: "+"; position: absolute; right: 22px; top: 50%; transform: translateY(-50%); font-size: 20px; color: var(--brand); font-weight: 400; }
.b-faq details[open] summary::after { content: "−"; }
.b-faq-body { padding: 0 22px 20px; color: var(--ink-2); font-size: 14.5px; line-height: 1.9; }
.b-faq-body p { margin: 0 0 10px; }

/* 画廊 */
.b-gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.b-gallery figure { margin: 0; border-radius: 12px; overflow: hidden; background: #eef2f7; }
.b-gallery img { width: 100%; height: 190px; object-fit: cover; display: block; transition: transform .5s ease; }
.b-gallery figure:hover img { transform: scale(1.05); }
.b-gallery figcaption { padding: 10px 14px; font-size: 13px; color: var(--ink-2); background: #fff; }

/* 报价 */
.b-plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; align-items: stretch; }
.b-plan { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 26px 22px; display: flex; flex-direction: column; position: relative; }
.b-plan-hot { border-color: var(--brand); box-shadow: 0 18px 40px rgba(26,95,168,.16); }
.b-plan-badge { position: absolute; top: -12px; left: 22px; background: var(--accent); color: #fff; font-size: 12px; padding: 4px 10px; border-radius: 20px; font-weight: 600; }
.b-plan h3 { font-size: 1.05rem; margin: 0 0 12px; }
.b-price { font-size: 1.9rem; font-weight: 700; color: var(--brand); line-height: 1.1; }
.b-price small { font-size: .8rem; font-weight: 400; color: var(--ink-3); margin-left: 4px; }
.b-plan-desc { color: var(--ink-2); font-size: 13.5px; margin: 10px 0 12px; }
.b-plan ul { list-style: none; padding: 0; margin: 0 0 20px; display: grid; gap: 8px; }
.b-plan ul li { font-size: 13.5px; color: var(--ink-2); padding-left: 20px; position: relative; }
.b-plan ul li::before { content: "✓"; position: absolute; left: 0; color: var(--brand); font-weight: 700; }
.b-plan .btn { margin-top: auto; }

/* CTA */
.b-cta { background: linear-gradient(110deg, var(--charcoal), #15324f); color: #fff; padding: 54px 0; background-size: cover; background-position: center; }
.b-cta-in { display: flex; align-items: center; justify-content: space-between; gap: 28px; flex-wrap: wrap; }
.b-cta h2 { font-size: 1.55rem; margin: 0 0 8px; }
.b-cta p { margin: 0; color: rgba(255,255,255,.78); font-size: 14.5px; }
.b-cta-actions { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.b-cta-tel { color: var(--accent); font-size: 1.25rem; font-weight: 700; }

/* 富文本 */
.b-rich { font-size: 15.5px; line-height: 1.95; color: var(--ink-2); }
.b-rich h2 { font-size: 1.4rem; color: var(--ink); margin: 34px 0 12px; }
.b-rich h3 { font-size: 1.12rem; color: var(--ink); margin: 26px 0 10px; }
.b-rich p { margin: 0 0 14px; }
.b-rich img { max-width: 100%; height: auto; border-radius: 12px; margin: 8px 0 18px; }
.b-rich ul, .b-rich ol { padding-left: 22px; margin: 0 0 16px; }
.b-rich li { margin-bottom: 8px; }
.b-rich table { width: 100%; border-collapse: collapse; margin: 10px 0 20px; font-size: 14px; }
.b-rich th, .b-rich td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; }
.b-rich th { background: #f4f7fb; color: var(--ink); }
.b-rich blockquote { margin: 16px 0; padding: 12px 18px; border-left: 4px solid var(--brand); background: #f4f7fb; border-radius: 0 8px 8px 0; color: var(--ink-2); }

/* Logo 墙 */
.b-logos { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 16px; align-items: center; }
.b-logo { background: #fff; border: 1px solid var(--line); border-radius: 10px; height: 76px; display: grid; place-items: center; padding: 10px 14px; }
.b-logo img { max-width: 100%; max-height: 46px; object-fit: contain; }
.b-logo span { font-size: 14px; color: var(--ink-3); font-weight: 600; }

/* 视频与表格 */
.b-video video { width: 100%; border-radius: 12px; display: block; background: #000; }
.b-video-ph { padding: 70px 20px; text-align: center; border: 1px dashed var(--line); border-radius: 12px; color: var(--ink-3); }
.b-table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; }
.b-table { width: 100%; border-collapse: collapse; font-size: 14px; background: #fff; }
.b-table th, .b-table td { padding: 12px 16px; border-bottom: 1px solid var(--line); text-align: left; }
.b-table th { background: #f4f7fb; font-weight: 600; color: var(--ink); }
.b-table tr:last-child td { border-bottom: 0; }

/* 时间轴 */
.b-timeline { list-style: none; padding: 0; margin: 0; position: relative; }
.b-timeline::before { content: ""; position: absolute; left: 92px; top: 8px; bottom: 8px; width: 2px; background: var(--line); }
.b-timeline li { display: grid; grid-template-columns: 76px 1fr; gap: 32px; padding: 0 0 26px; position: relative; }
.b-timeline li::before { content: ""; position: absolute; left: 87px; top: 6px; width: 12px; height: 12px; border-radius: 50%; background: var(--brand); box-shadow: 0 0 0 4px #fff; }
.b-tl-time { font-size: 13px; font-weight: 700; color: var(--brand); text-align: right; padding-top: 2px; }
.b-timeline h3 { font-size: 1rem; margin: 0 0 4px; }
.b-timeline p { margin: 0; color: var(--ink-2); font-size: 14px; line-height: 1.8; }

/* ============ 活动邀请页 ============ */
.act-hero { position: relative; min-height: 480px; display: flex; align-items: center; background: linear-gradient(120deg, #0b2846, #1a5fa8); background-size: cover; background-position: center; color: #fff; }
.act-hero-mask { position: absolute; inset: 0; background: linear-gradient(105deg, rgba(9,30,55,.9), rgba(9,30,55,.55)); }
.act-hero-in { position: relative; z-index: 1; padding: 66px 0; max-width: 760px; }
.act-tag { display: inline-block; padding: 5px 14px; border: 1px solid rgba(245,166,35,.8); color: var(--accent); border-radius: 30px; font-size: 12.5px; letter-spacing: .08em; margin-bottom: 16px; }
.act-hero h1 { font-size: 2.3rem; line-height: 1.32; margin: 0 0 14px; }
.act-sub { font-size: 16px; color: rgba(255,255,255,.85); margin: 0 0 22px; line-height: 1.8; }
.act-facts { display: flex; flex-wrap: wrap; gap: 12px 26px; margin-bottom: 26px; }
.act-facts span { font-size: 14.5px; color: rgba(255,255,255,.9); }
.act-facts b { font-weight: 400; color: rgba(255,255,255,.55); margin-right: 8px; font-size: 12.5px; }
.act-body { display: grid; grid-template-columns: 1fr 320px; gap: 34px; padding: 44px 0 60px; align-items: start; }
.act-summary { background: #f4f7fb; border-left: 4px solid var(--brand); border-radius: 0 10px 10px 0; padding: 18px 22px; color: var(--ink-2); font-size: 15px; line-height: 1.85; margin-bottom: 22px; }
.act-signup { margin-top: 40px; border: 1px solid var(--line); border-radius: 14px; padding: 26px 24px; background: #fff; }
.act-signup-head h2 { margin: 0 0 6px; font-size: 1.3rem; }
.act-signup-head p { margin: 0 0 18px; color: var(--ink-2); font-size: 14px; line-height: 1.8; }
.act-closed { margin-top: 32px; padding: 18px 22px; background: #fff7e8; border: 1px solid #f3d9a4; border-radius: 10px; color: #8a5a00; font-size: 14.5px; }
.act-share-card p { font-size: 13px; color: var(--ink-2); line-height: 1.8; margin: 0 0 12px; }
@media (max-width: 900px) {
  .act-body { grid-template-columns: 1fr; }
  .b-split { grid-template-columns: 1fr; gap: 26px; }
  .b-split-right .b-split-media { order: 0; }
  .b-cols-3, .b-cols-4 { grid-template-columns: repeat(2, 1fr); }
  .b-hero h1, .act-hero h1 { font-size: 1.65rem; }
  .b-sec { padding: 44px 0; }
  .b-timeline::before { left: 60px; }
  .b-timeline li { grid-template-columns: 50px 1fr; gap: 22px; }
  .b-timeline li::before { left: 55px; }
}
@media (max-width: 560px) {
  .b-cols-2, .b-cols-3, .b-cols-4 { grid-template-columns: 1fr; }
  .b-hero { min-height: 400px; }
  .b-stats-in { grid-template-columns: repeat(2, 1fr); }
  .act-hero { min-height: 420px; }
}

/* v12：页头手机号（项目咨询 / 微信同号） */
.brand-tel .tel-mobile {
  display: block; margin-top: 4px; font-size: 12.5px; font-weight: 600;
  color: var(--accent); letter-spacing: .01em;
}
@media (max-width: 959px) { .brand-tel .tel-mobile { display: none; } }
.contact-line b a { color: inherit; }