/* ============================================================
   LRQA 劳盛 — 设计系统
   主色：深墨绿 #0D2B3A / 青绿 #00C4B4
   ============================================================ */
:root {
  --ink: #0F1232;
  --ink-2: #171C45;
  --ink-3: #232A5C;
  --teal: #0FF2B2;
  --teal-dark: #0BD39A;
  --teal-soft: rgba(15, 242, 178, .14);
  --paper: #FFFFFF;
  --mist: #F1F4F7;
  --line: #E3E8F0;
  --text: #1A2030;
  --muted: #5A6478;
  --radius: 0px;
  --radius-sm: 0px;
  --shadow-1: 0 2px 10px rgba(15, 18, 50, .08);
  --shadow-2: 0 12px 32px rgba(15, 18, 50, .14);
  --container: 1200px;
  --header-h: 76px;
  --topbar-h: 40px;
  --font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--text);
  background: var(--paper);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2 { font-weight: 900; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ---------- 通用组件 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 28px; border-radius: 0;
  font-size: 15px; font-weight: 700; letter-spacing: .5px;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease;
  white-space: nowrap;
}
.btn-teal { background: var(--teal); color: var(--ink); }
.btn-teal:hover { background: #fff; color: var(--ink); box-shadow: 0 8px 22px rgba(15, 242, 178, .35); transform: translateY(-1px); }
.btn-ghost { border: 1.5px solid rgba(255, 255, 255, .55); color: #fff; }
.btn-ghost:hover { background: rgba(255, 255, 255, .12); border-color: #fff; transform: translateY(-1px); }
.btn-ink { background: var(--ink); color: #fff; }
.btn-ink:hover { background: var(--ink-3); box-shadow: 0 8px 22px rgba(15, 18, 50, .28); transform: translateY(-1px); }
.btn:active { transform: scale(.97); }

.kicker {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--teal-dark); font-weight: 700; font-size: 14px; letter-spacing: 3px;
  text-transform: uppercase; margin-bottom: 14px;
}
.kicker::before { content: ""; width: 28px; height: 3px; background: var(--teal); border-radius: 2px; }
.section-title { font-size: clamp(26px, 3.4vw, 38px); font-weight: 700; color: var(--ink); line-height: 1.3; }
.section-head { max-width: 780px; margin: 0 auto 48px; }
.section-head p { color: var(--muted); margin-top: 14px; font-size: 16.5px; }

.section { padding: 88px 0; }
.section-mist { background: var(--mist); }

/* 提示框：统一左对齐 */
.notice {
  display: flex; gap: 12px; align-items: flex-start;
  background: var(--teal-soft); border-left: 4px solid var(--teal);
  border-radius: var(--radius-sm); padding: 16px 20px;
  text-align: left; color: #0B4A44; font-size: 14.5px;
}
.notice svg { flex: none; margin-top: 3px; }

/* 滚动进场动画 */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

/* 图片占位底色，防闪烁 */
.ph { background: linear-gradient(135deg, #E8F1F2, #D3E4E6); }

/* ============================================================
   顶部工具条 + 头部导航
   ============================================================ */
.topbar { background: var(--ink); color: rgba(255, 255, 255, .82); font-size: 13px; }
.topbar-in { display: flex; justify-content: flex-end; align-items: center; gap: 22px; height: var(--topbar-h); }
.topbar a { display: inline-flex; align-items: center; gap: 6px; transition: color .15s; }
.topbar a:hover { color: var(--teal); }
.topbar .divider { width: 1px; height: 14px; background: rgba(255, 255, 255, .22); }

.site-header {
  position: relative; z-index: 900;
  background: var(--ink); border-bottom: none;
}
.site-header.scrolled { box-shadow: none; }
.header-in { display: flex; align-items: center; gap: 36px; height: var(--header-h); }

.logo { display: flex; align-items: baseline; gap: 10px; flex: none; }
.logo-img { height: 26px; width: auto; display: block; }
.drawer-panel .logo-img { height: 24px; }
.footer-brand .logo-img { height: 28px; }
.logo-mark {
  font-weight: 800; font-size: 30px; letter-spacing: -1px; color: #fff;
  font-family: Arial, Helvetica, sans-serif; line-height: 1;
}
.logo-mark span { color: var(--teal); }
.logo-cn { font-size: 15px; font-weight: 600; color: rgba(255, 255, 255, .6); letter-spacing: 2px; }

.main-nav { display: flex; align-items: center; gap: 4px; flex: 1; }
.nav-item > a {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 26px 16px; font-size: 15.5px; font-weight: 600; color: rgba(255, 255, 255, .85);
  border-bottom: 3px solid transparent; transition: color .15s, border-color .15s;
}
.nav-item > a .caret { transition: transform .2s; }
.nav-item:hover > a, .nav-item.open > a { color: var(--teal); border-bottom-color: var(--teal); }
.nav-item:hover > a .caret, .nav-item.open > a .caret { transform: rotate(180deg); }

/* Mega Menu */
.mega {
  position: absolute; left: 0; right: 0; top: 100%;
  background: #fff; border-top: 1px solid var(--line);
  box-shadow: 0 30px 50px rgba(13, 43, 58, .16);
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: opacity .22s ease, transform .22s ease, visibility .22s;
}
.nav-item { position: static; }
.nav-item:hover .mega, .nav-item.open .mega { opacity: 1; visibility: visible; transform: none; }
.mega-in { display: grid; grid-template-columns: 280px 1fr; min-height: 380px; }
.mega-intro {
  background: linear-gradient(160deg, var(--ink), var(--ink-3));
  color: #fff; padding: 40px 32px;
  display: flex; flex-direction: column; justify-content: space-between; gap: 20px;
}
.mega-intro h3 { font-size: 22px; line-height: 1.4; }
.mega-intro p { color: rgba(255, 255, 255, .72); font-size: 14px; }
.mega-intro .btn { align-self: flex-start; }
.mega-links {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px 24px;
  padding: 32px 36px; align-content: start;
}
.mega-links a {
  display: flex; flex-direction: column; gap: 4px;
  padding: 14px 16px; border-radius: var(--radius-sm);
  transition: background .15s;
}
.mega-links a:hover { background: var(--mist); }
.mega-links a strong { color: var(--ink); font-size: 15px; }
.mega-links a span { color: var(--muted); font-size: 13px; line-height: 1.55; }
.mega-col-title { grid-column: 1 / -1; color: var(--teal-dark); font-size: 13px; font-weight: 700; letter-spacing: 2px; padding: 0 16px 2px; }

.header-cta { flex: none; display: flex; align-items: center; gap: 16px; }
.header-cta .btn { padding: 11px 24px; }

/* 移动端 */
.burger { display: none; width: 44px; height: 44px; border-radius: 8px; position: relative; }
.burger i, .burger i::before, .burger i::after {
  content: ""; position: absolute; left: 11px; right: 11px; height: 2.5px;
  background: var(--ink); border-radius: 2px; transition: all .25s;
}
.burger i { top: 50%; margin-top: -1.25px; }
.burger i::before { top: -8px; }
.burger i::after { top: 8px; }
.burger.active i { background: transparent; }
.burger.active i::before { top: 0; transform: rotate(45deg); }
.burger.active i::after { top: 0; transform: rotate(-45deg); }

.drawer {
  position: fixed; inset: 0; top: 0; z-index: 1000;
  background: rgba(13, 43, 58, .5); opacity: 0; visibility: hidden; transition: .25s;
}
.drawer.open { opacity: 1; visibility: visible; }
.drawer-panel {
  position: absolute; top: 0; right: 0; bottom: 0; width: min(360px, 88vw);
  background: #fff; padding: 24px; overflow-y: auto;
  transform: translateX(100%); transition: transform .28s ease;
}
.drawer.open .drawer-panel { transform: none; }
.drawer-panel .logo { margin-bottom: 20px; }
.drawer-nav > a {
  display: flex; justify-content: space-between; align-items: center;
  padding: 15px 8px; font-weight: 600; color: var(--ink);
  border-bottom: 1px solid var(--line);
}
.drawer-sub { display: none; padding: 6px 0 12px; border-bottom: 1px solid var(--line); }
.drawer-sub.open { display: block; }
.drawer-sub a { display: block; padding: 9px 14px; color: var(--muted); border-radius: 8px; }
.drawer-sub a:hover { background: var(--mist); color: var(--ink); }
.drawer-close { position: absolute; top: 18px; right: 18px; width: 40px; height: 40px; border-radius: 50%; background: var(--mist); font-size: 20px; color: var(--ink); }
.drawer-panel { position: relative; }

/* ============================================================
   Hero
   ============================================================ */
.hero { position: relative; height: min(78vh, 720px); min-height: 520px; overflow: hidden; background: var(--ink); }
.hero-slide {
  position: absolute; inset: 0; opacity: 0; transition: opacity 1s ease;
  background-size: cover; background-position: center;
}
.hero-slide.active { opacity: 1; }
.hero-slide::before { content: ""; position: absolute; inset: 0; background: linear-gradient(100deg, rgba(15, 18, 50, .92) 8%, rgba(15, 18, 50, .62) 45%, rgba(15, 18, 50, .25) 78%); }
.hero-slide.active .hero-img { animation: kenburns 9s ease-out forwards; }
.hero-img { position: absolute; inset: -3%; background-size: cover; background-position: center; }
@keyframes kenburns { from { transform: scale(1.08); } to { transform: scale(1); } }

.hero-in { position: relative; z-index: 2; height: 100%; display: flex; align-items: center; }
.hero-copy { max-width: 640px; color: #fff; }
.hero-copy .tag {
  display: inline-block; padding: 6px 14px; border-radius: 999px;
  background: rgba(0, 196, 180, .16); border: 1px solid rgba(0, 196, 180, .5);
  color: var(--teal); font-size: 13.5px; font-weight: 600; letter-spacing: 2px; margin-bottom: 22px;
}
.hero-copy h1 { font-size: clamp(30px, 4.6vw, 52px); line-height: 1.22; font-weight: 700; letter-spacing: 1px; }
.hero-copy h1 em { font-style: normal; color: var(--teal); display: block; }
.hero-copy p { margin-top: 18px; font-size: clamp(15px, 1.6vw, 17.5px); color: rgba(255, 255, 255, .85); max-width: 560px; }
.hero-actions { display: flex; gap: 14px; margin-top: 32px; flex-wrap: wrap; }

.hero-dots { position: absolute; z-index: 3; left: 50%; bottom: 34px; transform: translateX(-50%); display: flex; gap: 10px; }
.hero-dots button { width: 34px; height: 4px; border-radius: 4px; background: rgba(255, 255, 255, .35); transition: .25s; }
.hero-dots button.active { background: var(--teal); width: 48px; }
.hero-arrow {
  position: absolute; z-index: 3; top: 50%; transform: translateY(-50%);
  width: 48px; height: 48px; border-radius: 50%; color: #fff;
  background: rgba(255, 255, 255, .12); border: 1px solid rgba(255, 255, 255, .25);
  display: grid; place-items: center; transition: .2s;
}
.hero-arrow:hover { background: var(--teal); border-color: var(--teal); color: var(--ink); }
.hero-arrow.prev { left: 28px; }
.hero-arrow.next { right: 28px; }

/* ============================================================
   推广卡 / 解决方案 / 行业
   ============================================================ */
.promo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.promo-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; display: flex; flex-direction: column;
  transition: transform .25s ease, box-shadow .25s ease;
}
.promo-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-2); }
.promo-card .cover { aspect-ratio: 16/9; overflow: hidden; }
.promo-card .cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.promo-card:hover .cover img { transform: scale(1.05); }
.promo-body { padding: 24px 26px 26px; display: flex; flex-direction: column; flex: 1; text-align: left; }
.promo-body .chip { align-self: flex-start; background: var(--teal-soft); color: var(--teal-dark); font-size: 12.5px; font-weight: 700; letter-spacing: 1px; padding: 4px 12px; border-radius: 0; margin-bottom: 12px; }
.promo-body h3 { font-size: 19.5px; color: var(--ink); line-height: 1.4; }
.promo-body p { color: var(--muted); font-size: 14.5px; margin-top: 10px; flex: 1; }
.link-more { display: inline-flex; align-items: center; gap: 7px; margin-top: 18px; color: var(--teal-dark); font-weight: 700; font-size: 14.5px; }
.link-more svg { transition: transform .2s; }
.link-more:hover svg { transform: translateX(4px); }

.sol-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.sol-card {
  position: relative; border-radius: var(--radius); overflow: hidden;
  aspect-ratio: 4/3.4; color: #fff; display: flex; flex-direction: column; justify-content: flex-end;
  transition: transform .25s ease, box-shadow .25s ease;
}
.sol-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-2); }
.sol-card .bg { position: absolute; inset: 0; background-size: cover; background-position: center; transition: transform .5s ease; }
.sol-card:hover .bg { transform: scale(1.06); }
.sol-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(15, 18, 50, 0) 30%, rgba(15, 18, 50, .92) 100%); }
.sol-body { position: relative; z-index: 2; padding: 28px; }
.sol-body h3 { font-size: 21px; margin-bottom: 8px; }
.sol-body p { font-size: 14px; color: rgba(255, 255, 255, .82); display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.sol-body .link-more { color: var(--teal); margin-top: 14px; }

.ind-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.ind-card {
  position: relative; border-radius: var(--radius); overflow: hidden; aspect-ratio: 3/3.6;
  display: flex; align-items: flex-end; color: #fff;
  transition: transform .25s ease, box-shadow .25s ease;
}
.ind-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-2); }
.ind-card .bg { position: absolute; inset: 0; background-size: cover; background-position: center; transition: transform .5s; }
.ind-card:hover .bg { transform: scale(1.07); }
.ind-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(15, 18, 50, .05) 35%, rgba(15, 18, 50, .88) 100%); }
.ind-card h3 { position: relative; z-index: 2; padding: 22px; font-size: 18.5px; display: flex; justify-content: space-between; align-items: center; width: 100%; }
.ind-card h3 .arr { opacity: 0; transform: translateX(-6px); transition: .25s; color: var(--teal); }
.ind-card:hover h3 .arr { opacity: 1; transform: none; }

/* ---------- 为什么选择 ---------- */
.why-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 64px; align-items: center; }
.why-copy h2 { font-size: clamp(26px, 3.2vw, 36px); color: var(--ink); line-height: 1.35; }
.why-copy > p { color: var(--muted); margin: 18px 0 8px; }
.why-slogan { color: var(--ink); font-weight: 700; font-size: 19px; margin: 10px 0 26px; }
.why-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.why-actions .btn-ink { background: #fff; color: var(--ink); border: 1.5px solid var(--line); }
.why-actions .btn-ink:hover { border-color: var(--teal); color: var(--teal-dark); box-shadow: var(--shadow-1); }
.trust-card {
  background: linear-gradient(160deg, var(--ink), var(--ink-3)); color: #fff;
  border-radius: var(--radius); padding: 38px 36px; box-shadow: var(--shadow-2);
}
.trust-card .stars { color: var(--teal); font-size: 22px; letter-spacing: 3px; }
.trust-card .score { font-size: 52px; font-weight: 800; line-height: 1.1; margin: 12px 0 4px; }
.trust-card .score small { font-size: 18px; color: rgba(255, 255, 255, .6); font-weight: 600; }
.trust-card p { color: rgba(255, 255, 255, .75); font-size: 14.5px; }
.trust-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 26px; padding-top: 24px; border-top: 1px solid rgba(255, 255, 255, .14); }
.trust-stats b { font-size: 26px; color: var(--teal); display: block; }
.trust-stats span { font-size: 13px; color: rgba(255, 255, 255, .65); }

/* ---------- 案例 ---------- */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.case-card {
  border-radius: var(--radius); overflow: hidden; background: #fff;
  border: 1px solid var(--line); transition: transform .25s, box-shadow .25s;
  display: flex; flex-direction: column;
}
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-2); }
.case-card .cover { aspect-ratio: 16/10; overflow: hidden; }
.case-card .cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.case-card:hover .cover img { transform: scale(1.05); }
.case-card .body { padding: 24px; display: flex; flex-direction: column; flex: 1; text-align: left; }
.case-card .body .brand { color: var(--teal-dark); font-weight: 700; font-size: 13px; letter-spacing: 1.5px; margin-bottom: 8px; }
.case-card .body h3 { color: var(--ink); font-size: 17.5px; line-height: 1.5; flex: 1; }
.case-card .body .link-more { margin-top: 16px; }

/* ---------- 新闻 ---------- */
.news-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; margin-bottom: 40px; }
.news-head .section-head { margin: 0; }
.news-tabs { display: flex; gap: 8px; flex-wrap: wrap; }
.news-tab {
  padding: 9px 22px; border-radius: 0; font-weight: 600; font-size: 14.5px;
  border: 1.5px solid var(--line); color: var(--muted); transition: .18s;
}
.news-tab:hover { border-color: var(--teal); color: var(--teal-dark); background: var(--teal-soft); }
.news-tab.active { background: var(--ink); border-color: var(--ink); color: #fff; }
.news-rail-wrap { position: relative; }
.news-rail {
  display: grid; grid-auto-flow: column; grid-auto-columns: calc((100% - 52px) / 3);
  gap: 26px; overflow-x: auto; scroll-snap-type: x mandatory;
  padding-bottom: 10px; scrollbar-width: none;
}
.news-rail::-webkit-scrollbar { display: none; }
.news-item { scroll-snap-align: start; }
.rail-btn {
  position: absolute; top: 38%; transform: translateY(-50%);
  width: 46px; height: 46px; border-radius: 50%; background: #fff;
  border: 1px solid var(--line); color: var(--ink); display: grid; place-items: center;
  box-shadow: var(--shadow-1); transition: .2s; z-index: 5;
}
.rail-btn:hover { background: var(--teal); border-color: var(--teal); color: var(--ink); }
.rail-btn.prev { left: -22px; }
.rail-btn.next { right: -22px; }
.rail-btn:disabled { opacity: .35; cursor: default; }
.rail-btn:disabled:hover { background: #fff; color: var(--ink); border-color: var(--line); }

/* ---------- 订阅 & CTA ---------- */
.cta-band { background: linear-gradient(120deg, var(--ink) 30%, var(--ink-3)); border-radius: var(--radius); padding: 56px 56px; color: #fff; display: flex; align-items: center; justify-content: space-between; gap: 40px; position: relative; overflow: hidden; }
.cta-band::before { content: ""; position: absolute; right: -80px; top: -80px; width: 320px; height: 320px; border-radius: 50%; background: radial-gradient(circle, rgba(15, 242, 178, .22), transparent 70%); }
.cta-band h2 { font-size: clamp(22px, 2.6vw, 30px); line-height: 1.4; position: relative; }
.cta-band p { color: rgba(255, 255, 255, .75); margin-top: 10px; position: relative; }
.cta-band .btn { position: relative; flex: none; }
.sub-form { display: flex; gap: 12px; margin-top: 26px; max-width: 520px; position: relative; }
.sub-form input {
  flex: 1; padding: 14px 20px; border-radius: 0; border: 1px solid rgba(255, 255, 255, .25);
  background: rgba(255, 255, 255, .08); color: #fff; font-size: 15px; outline: none; transition: border-color .2s;
}
.sub-form input::placeholder { color: rgba(255, 255, 255, .5); }
.sub-form input:focus { border-color: var(--teal); }
.sub-form .btn { padding: 14px 30px; }

/* ============================================================
   子页模板
   ============================================================ */
.page-hero {
  position: relative; background: linear-gradient(115deg, var(--ink) 25%, var(--ink-3));
  color: #fff; padding: 92px 0 84px; overflow: hidden;
}
.page-hero.with-img::before { content: ""; position: absolute; inset: 0; background-size: cover; background-position: center; opacity: .28; }
.page-hero .container { position: relative; }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13.5px; color: rgba(255, 255, 255, .62); margin-bottom: 20px; }
.breadcrumb a:hover { color: var(--teal); }
.breadcrumb .sep { opacity: .5; }
.page-hero h1 { font-size: clamp(28px, 4vw, 44px); line-height: 1.25; max-width: 760px; }
.page-hero .lead { margin-top: 16px; color: rgba(255, 255, 255, .8); max-width: 680px; font-size: 16.5px; }
.page-hero .hero-actions { margin-top: 30px; }

.prose { max-width: 860px; }
.prose h2 { font-size: 26px; color: var(--ink); margin: 0 0 18px; line-height: 1.4; }
.prose h3 { font-size: 20px; color: var(--ink); margin: 34px 0 12px; }
.prose p { color: var(--muted); margin-bottom: 14px; }
.prose ul { list-style: none; margin: 16px 0; }
.prose ul li { position: relative; padding: 8px 0 8px 30px; color: var(--muted); }
.prose ul li::before {
  content: ""; position: absolute; left: 4px; top: 17px; width: 9px; height: 9px;
  border-radius: 2px; background: var(--teal); transform: rotate(45deg);
}
.prose strong { color: var(--ink); }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.split .cover { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-2); aspect-ratio: 4/3; }
.split .cover img { width: 100%; height: 100%; object-fit: cover; }

.stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.stat-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 26px; text-align: left; transition: transform .2s, box-shadow .2s; }
.stat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-1); }
.stat-card b { font-size: 34px; color: var(--teal-dark); font-weight: 800; display: block; line-height: 1.2; }
.stat-card span { color: var(--muted); font-size: 14px; }

.std-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.std-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; transition: .2s; }
.std-card:hover { border-color: var(--teal); box-shadow: var(--shadow-1); transform: translateY(-4px); }
.std-card .no { font-size: 13px; font-weight: 700; letter-spacing: 2px; color: var(--teal-dark); }
.std-card h3 { color: var(--ink); font-size: 19px; margin: 8px 0 10px; }
.std-card p { color: var(--muted); font-size: 14px; flex: 1; }
.std-card .link-more { margin-top: 16px; }

/* 表单 */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 14px; font-weight: 600; color: var(--ink); }
.field label em { color: #E5484D; font-style: normal; }
.field input, .field select, .field textarea {
  padding: 13px 16px; border: 1.5px solid var(--line); border-radius: var(--radius-sm);
  font-size: 15px; font-family: inherit; color: var(--text); outline: none;
  transition: border-color .18s, box-shadow .18s; background: #fff; text-align: left;
}
.field textarea { min-height: 130px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--teal); box-shadow: 0 0 0 3px var(--teal-soft); }
.field .hint { font-size: 12.5px; color: var(--muted); text-align: left; }
.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 40px; box-shadow: var(--shadow-1); }

/* 表格 */
.table-wrap { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
table.data { width: 100%; border-collapse: collapse; font-size: 14.5px; background: #fff; }
table.data th { background: var(--mist); color: var(--ink); text-align: left; padding: 14px 18px; font-weight: 700; }
table.data td { padding: 14px 18px; border-top: 1px solid var(--line); color: var(--muted); text-align: left; }
table.data tr:hover td { background: #FAFDFD; }
table.data td b { color: var(--ink); }

/* 结果卡 */
.result-card { border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 26px; background: #fff; transition: .2s; }
.result-card:hover { border-color: var(--teal); box-shadow: var(--shadow-1); }
.result-card h3 { color: var(--ink); font-size: 17px; }
.result-card .meta { display: flex; flex-wrap: wrap; gap: 10px 26px; margin-top: 10px; font-size: 13.5px; color: var(--muted); }
.result-card .meta b { color: var(--teal-dark); }
.badge { display: inline-block; padding: 3px 12px; border-radius: 0; font-size: 12.5px; font-weight: 700; }
.badge-valid { background: rgba(48, 164, 108, .12); color: #1F7A4D; }

/* ============================================================
   页脚 / 悬浮件 / 返回顶部
   ============================================================ */
.site-footer { background: var(--mist); color: var(--muted); margin-top: 0; border-top: 1px solid var(--line); }
.footer-main { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1fr; gap: 44px; padding: 56px 0; }
.footer-brand p { font-size: 14px; color: var(--muted); margin-top: 14px; max-width: 300px; }
.footer-col h4 { color: var(--ink); font-size: 15.5px; font-weight: 900; margin-bottom: 18px; letter-spacing: 1px; }
.footer-col a { display: block; padding: 6px 0; font-size: 14px; color: var(--muted); transition: color .15s, transform .15s; }
.footer-col a:hover { color: var(--teal-dark); transform: translateX(3px); }
.footer-base { border-top: 1px solid var(--line); padding: 22px 0; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 13px; color: var(--muted); }
.footer-base a:hover { color: var(--teal-dark); }
.footer-links { display: flex; gap: 22px; flex-wrap: wrap; }

.float-contact { position: fixed; right: 26px; bottom: 96px; z-index: 800; display: flex; flex-direction: column; align-items: flex-end; gap: 12px; }
.float-btn {
  width: 56px; height: 56px; border-radius: 50%; background: var(--teal); color: var(--ink);
  display: grid; place-items: center; box-shadow: 0 10px 26px rgba(15, 242, 178, .45);
  transition: transform .2s, background .2s;
}
.float-btn:hover { transform: translateY(-3px); background: var(--teal-dark); color: #fff; }
.float-panel {
  background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-2);
  padding: 22px; width: 264px; opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: .25s; text-align: left;
}
.float-panel.open { opacity: 1; visibility: visible; transform: none; }
.float-panel h4 { color: var(--ink); font-size: 16px; margin-bottom: 6px; }
.float-panel p { font-size: 13.5px; color: var(--muted); margin-bottom: 14px; }
.float-panel .row { display: flex; align-items: center; gap: 10px; padding: 9px 0; font-size: 14px; color: var(--ink); border-top: 1px dashed var(--line); }
.float-panel .row svg { color: var(--teal-dark); flex: none; }
.float-close { position: absolute; top: 8px; right: 8px; width: 30px; height: 30px; border-radius: 50%; background: var(--mist); color: var(--muted); font-size: 15px; display: grid; place-items: center; transition: .15s; }
.float-close:hover { background: var(--ink); color: #fff; }
.float-panel { position: relative; }

.backtop {
  position: fixed; right: 26px; bottom: 28px; z-index: 800;
  width: 46px; height: 46px; border-radius: 50%; background: #fff; color: var(--ink);
  border: 1px solid var(--line); box-shadow: var(--shadow-1);
  display: grid; place-items: center; opacity: 0; visibility: hidden; transition: .25s;
}
.backtop.show { opacity: 1; visibility: visible; }
.backtop:hover { background: var(--ink); color: #fff; border-color: var(--ink); }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1080px) {
  .main-nav { display: none; }
  .burger { display: block; }
  .header-in { justify-content: space-between; }
  .sol-grid, .promo-grid, .case-grid { grid-template-columns: repeat(2, 1fr); }
  .ind-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid, .split { grid-template-columns: 1fr; gap: 36px; }
  .stat-row { grid-template-columns: repeat(2, 1fr); }
  .std-grid { grid-template-columns: repeat(2, 1fr); }
  .news-rail { grid-auto-columns: calc((100% - 26px) / 2); }
  .footer-main { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .section { padding: 60px 0; }
  .topbar { display: none; }
  .hero { min-height: 480px; }
  .hero-arrow { display: none; }
  .sol-grid, .promo-grid, .case-grid, .ind-grid, .std-grid { grid-template-columns: 1fr; }
  .news-rail { grid-auto-columns: 100%; }
  .news-head { flex-direction: column; align-items: flex-start; }
  .cta-band { flex-direction: column; align-items: flex-start; padding: 40px 28px; }
  .sub-form { flex-direction: column; }
  .footer-main { grid-template-columns: 1fr; gap: 30px; }
  .footer-base { flex-direction: column; }
  .form-grid { grid-template-columns: 1fr; }
  .stat-row { grid-template-columns: 1fr; }
  .rail-btn { display: none; }
  .header-cta .btn { display: none; }
  .float-contact { right: 16px; bottom: 88px; }
}

/* ============================================================
   素材增强：Hero 视频背景 + 图片画廊
   ============================================================ */
.hero-video {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; z-index: 1;
}
.hero-slide.has-video::before { z-index: 2; }
.hero-slide.has-video .hero-img { opacity: 0; }

.gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.gallery-item {
  position: relative; border-radius: var(--radius); overflow: hidden;
  aspect-ratio: 16 / 10;
  background-size: cover; background-position: center;
  box-shadow: var(--shadow-1);
  transition: transform .3s ease, box-shadow .3s ease;
}
.gallery-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-2); }
.gallery-item figcaption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 44px 18px 14px; color: #fff; font-size: 14.5px; font-weight: 600;
  background: linear-gradient(transparent, rgba(15, 18, 50, .85));
}
@media (max-width: 900px) { .gallery { grid-template-columns: 1fr; } }

/* ============================================================
   真站对齐：深色头部组件 / Hero 快捷链接 / 行业快捷链接 / 深色板块
   ============================================================ */
.header-cta { display: flex; align-items: center; gap: 18px; color: #fff; }
.nav-cert {
  display: inline-flex; align-items: center; gap: 7px;
  color: #fff; font-size: 14.5px; font-weight: 700; white-space: nowrap;
  padding: 9px 18px; border: 1.5px solid rgba(255, 255, 255, .35);
  transition: background .2s, color .2s, border-color .2s;
}
.nav-cert:hover { color: var(--ink); background: var(--teal); border-color: var(--teal); }
.nav-tel { color: rgba(255, 255, 255, .85); font-size: 14.5px; font-weight: 600; white-space: nowrap; }
.nav-tel b { color: var(--teal); font-weight: 800; }
.nav-tel:hover { color: var(--teal); }
.nav-lang { color: rgba(255, 255, 255, .6); font-size: 13.5px; white-space: nowrap; padding: 0; letter-spacing: .5px; font-weight: 600; }
.nav-lang:hover { color: #fff; }
.burger i, .burger i::before, .burger i::after { background: #fff; }
.hero-links { display: flex; gap: 28px; margin-top: 26px; flex-wrap: wrap; }
.hero-links a { color: rgba(255, 255, 255, .88); font-weight: 600; font-size: 15px; border-bottom: 2px solid var(--teal); padding-bottom: 3px; }
.hero-links a:hover { color: var(--teal); }
.quick-links { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.quick-links a { padding: 16px 18px; border: 1px solid var(--line); background: #fff; color: var(--ink); font-weight: 700; font-size: 15px; display: flex; justify-content: space-between; align-items: center; transition: .2s; }
.quick-links a::after { content: "→"; color: var(--teal-dark); }
.quick-links a:hover { border-color: var(--ink); transform: translateY(-2px); box-shadow: var(--shadow-1); }
.section-ink { background: var(--ink); }
.section-ink .why-copy h2 { color: #fff; }
.section-ink .why-copy > p { color: rgba(255, 255, 255, .78); }
.section-ink .why-slogan { color: var(--teal); }
.section-ink .kicker { color: var(--teal); }
@media (max-width: 900px) { .quick-links { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) {
  .quick-links { grid-template-columns: 1fr; }
  .header-cta .nav-lang, .header-cta .nav-cert, .header-cta .nav-tel b { display: none; }
}

/* ============================================================
   证书查询（对接 lrqa-cn.com/cert/query）
   ============================================================ */
.cert-panel {
  max-width: 820px; margin: 0 auto; background: #fff;
  border: 1px solid var(--line); border-radius: 12px;
  box-shadow: 0 10px 30px rgba(15, 18, 50, .08);
  padding: 28px 30px 18px;
}
.cert-search { display: flex; gap: 12px; }
.cert-search input {
  flex: 1; padding: 15px 18px; border: 1.5px solid var(--line); border-radius: 0;
  font-size: 15.5px; font-family: inherit; color: var(--text); outline: none; background: #fff;
  transition: border-color .18s;
}
.cert-search input:focus { border-color: var(--ink); }
.cert-search .btn { flex: none; padding: 15px 40px; }
.cert-tip { max-width: 760px; margin: 16px auto 0; font-size: 13px; color: var(--muted); text-align: center; }
.cert-results { max-width: 980px; margin: 36px auto 0; display: grid; gap: 16px; }
.cert-msg { text-align: center; color: var(--muted); padding: 36px 0; font-size: 15px; }
.cert-card { background: #fff; border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow-1); text-align: left; overflow: hidden; }
.cert-top { display: flex; align-items: center; gap: 14px 34px; padding: 20px 24px 14px; flex-wrap: wrap; }
.cert-ico {
  width: 56px; height: 56px; background: var(--teal); color: #fff; border-radius: 12px;
  display: grid; place-items: center; flex: none;
}
.cert-ico svg { width: 26px; height: 26px; }
.cert-line { font-size: 15px; color: var(--ink); }
.cert-line b { color: var(--ink); font-weight: 800; }
.cert-state { margin-left: auto; color: #1F7A4D; font-weight: 700; font-size: 14.5px; white-space: nowrap; }
.cert-state.no { color: #C0392B; }
.cert-toggle { text-align: center; font-size: 13px; color: var(--muted); padding: 0 0 14px; cursor: pointer; user-select: none; }
.cert-toggle:hover { color: var(--teal-dark); }
.cert-detail { display: none; border-top: 1px solid var(--line); padding: 18px 24px; grid-template-columns: 1fr; gap: 8px; font-size: 14.5px; color: var(--text); }
.cert-card.open .cert-detail { display: grid; }
.cert-detail b { color: var(--ink); }