/* 通彩五金电子 - 前台样式 v2 · 科技大气 */
:root {
  --navy: #1059A9;
  --navy2: #0C4A8F;
  --blue: #1677d9;
  --cyan: #00a3fe;
  --grad: linear-gradient(100deg, #1677d9, #00a3fe);
  --text: #1c2634;
  --text-light: #5b6b80;
  --text-faint: #8a97a8;
  --border: #e6ecf3;
  --bg-light: #f4f7fb;
  --w: 1200px;
  --r: 14px;
  --shadow: 0 10px 40px rgba(11, 27, 51, .08);
  --shadow-lg: 0 20px 60px rgba(11, 27, 51, .16);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif; color: var(--text); font-size: 15px; line-height: 1.75; background: #fff; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
.wrap { width: var(--w); max-width: 94%; margin: 0 auto; }

/* 滚动显现 */
.reveal { opacity: 0; transform: translateY(36px); transition: opacity .8s cubic-bezier(.16,.84,.44,1), transform .8s cubic-bezier(.16,.84,.44,1); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s } .reveal.d2 { transition-delay: .16s } .reveal.d3 { transition-delay: .24s } .reveal.d4 { transition-delay: .32s }

/* ---- 顶栏 ---- */
.topbar { background: var(--navy); color: rgba(255,255,255,.55); font-size: 13px; }
.topbar .wrap { display: flex; justify-content: space-between; align-items: center; height: 38px; }
.topbar a { color: rgba(255,255,255,.55); margin-left: 22px; transition: color .2s; }
.topbar a:hover { color: #fff; }
/* 语言切换（国旗） */
.lang-switch { display: inline-flex; align-items: center; gap: 2px; margin-left: 22px; padding-left: 16px; border-left: 1px solid rgba(255,255,255,.18); vertical-align: middle; }
.lang-switch a { display: inline-flex; align-items: center; gap: 5px; margin-left: 0; padding: 3px 7px; border-radius: 4px; font-size: 12px; line-height: 1; }
.lang-switch a.on { color: #fff; background: rgba(255,255,255,.14); }
.lang-switch .flag { width: 20px; height: 14px; border-radius: 2px; box-shadow: 0 0 0 1px rgba(255,255,255,.28); display: block; flex-shrink: 0; }
body.lang-en { font-family: "Segoe UI", Arial, Helvetica, sans-serif; }
body.lang-en .nav-menu > li > a { letter-spacing: 0; }
body.lang-en .prod-card .info .name { font-size: 15px; }
.topbar .top-right { display: inline-flex; align-items: center; }

/* ---- 头部 ---- */
.header { padding: 20px 0; background: #fff; }
.header .wrap { display: flex; align-items: center; gap: 48px; }
.logo { flex-shrink: 0; }
.logo img { height: 60px; }
.logo .logo-text { font-size: 30px; font-weight: 800; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; letter-spacing: 2px; }
.logo .logo-sub { font-size: 11px; color: var(--text-faint); letter-spacing: 3px; text-transform: uppercase; }
.head-search { flex: 1; max-width: 400px; margin-left: auto; display: flex; background: var(--bg-light); border-radius: 40px; overflow: hidden; height: 44px; border: 1px solid transparent; transition: all .25s; }
.head-search:focus-within { border-color: var(--blue); background: #fff; box-shadow: 0 4px 16px rgba(22,119,217,.12); }
.head-search input { flex: 1; border: none; background: none; padding: 0 18px; outline: none; font-size: 14px; }
.head-search button { width: 76px; border: none; background: var(--grad); color: #fff; font-size: 14px; cursor: pointer; border-radius: 40px; margin: 4px; }
.head-tel { text-align: right; flex-shrink: 0; }
.head-tel .tel-label { font-size: 12px; color: var(--text-faint); letter-spacing: 1px; }
.head-tel .tel-num { font-size: 26px; font-weight: 800; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; line-height: 1.25; font-family: DIN, Arial, sans-serif; letter-spacing: 1px; }

/* ---- 导航 ---- */
.nav { background: var(--navy); position: sticky; top: 0; z-index: 100; box-shadow: 0 4px 20px rgba(11,27,51,.25); }
.nav .wrap { display: flex; align-items: stretch; }
.nav-menu { display: flex; align-items: stretch; }
.nav-menu > li { position: relative; }
.nav-menu > li > a { display: block; padding: 0 20px; line-height: 58px; color: rgba(255,255,255,.82); font-size: 16px; font-weight: 500; position: relative; white-space: nowrap; transition: color .2s; }
.nav-menu > li > a::after { content: ''; position: absolute; left: 20px; right: 20px; bottom: 0; height: 3px; background: var(--grad); border-radius: 2px 2px 0 0; transform: scaleX(0); transition: transform .3s; }
.nav-menu > li > a:hover, .nav-menu > li.active > a { color: #fff; }
.nav-menu > li > a:hover::after, .nav-menu > li.active > a::after { transform: scaleX(1); }
.nav-menu .dropdown { position: absolute; top: 100%; left: 0; min-width: 210px; background: #fff; box-shadow: var(--shadow-lg); border-radius: 0 0 12px 12px; overflow: hidden; display: none; padding: 6px 0; }
.nav-menu li:hover .dropdown { display: block; animation: dropIn .25s ease; }
@keyframes dropIn { from { opacity: 0; transform: translateY(-8px) } to { opacity: 1; transform: none } }
.nav-menu .dropdown a { display: block; padding: 11px 20px; color: var(--text); font-size: 14px; transition: all .2s; border-left: 3px solid transparent; }
.nav-menu .dropdown a:hover { background: var(--bg-light); color: var(--blue); border-left-color: var(--cyan); padding-left: 26px; }
.nav-toggle { display: none; }

/* ---- 大气 HERO（左对齐排版，与导航"首页"对齐） ---- */
/* 横幅按素材 1920×560 的比例自适应高度；背景层铺满整幅，产品层单独定位 */
.banner { position: relative; overflow: hidden; background: #0a58b8; aspect-ratio: 1920 / 560; min-height: 280px; }
.banner-track { display: flex; height: 100%; transition: transform .8s cubic-bezier(.7,0,.3,1); }
.banner-slide { min-width: 100%; position: relative; overflow: hidden; background: #0a58b8; }
/* 背景层：不含产品的渐变底图，cover 铺满，任意宽度都无缝 */
.banner-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; z-index: 0; }
/* 产品层：透明 PNG（1920×560 画布，机器左缘约在图内 19.8%）。
   宽屏时用 max() 右移，机器左缘始终贴着 1200 内容区左侧（容器左缘 = 50% - 600px） */
.banner-machine {
  position: absolute; top: 0; left: 0; width: 100%; height: auto;
  transform: translateX(max(0px, calc(30.2% - 580px)));
  z-index: 2; pointer-events: none;
}
/* 窄屏按高度铺满，避免 min-height 生效后产品层上下错位 */
@media (max-width: 960px) and (min-width: 769px) {
  .banner-machine { height: 100%; width: auto; }
}
/* 上下轻暗化，保证居中文字可读，同时不压暗主体产品 */
.banner-slide::before {
  content: ''; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(180deg, rgba(4,32,78,.30) 0%, rgba(4,32,78,.06) 44%, rgba(4,32,78,.28) 100%);
}
.banner-cap { position: absolute; inset: 0; display: flex; align-items: center; justify-content: flex-end; text-align: right; color: #fff; z-index: 3; }
.banner-cap .wrap { width: var(--w); display: flex; justify-content: flex-end; }
/* 文字块右对齐：右缩进 20px，右缘与导航末项内边距一致 */
.cap-inner { display: flex; flex-direction: column; align-items: flex-end; padding-right: 20px; text-align: right; }
/* 顶部一行：黄色标签 + 细字距标语，避免与主标题争视觉重心 */
.banner-cap .cap-top { display: inline-flex; align-items: center; gap: 16px; }
.banner-cap .hero-tag {
  display: inline-block; padding: 5px 16px 6px;
  background: linear-gradient(100deg, #ffe066, #ffc107); color: #4d3800;
  font-size: 12px; font-weight: 700; letter-spacing: 2px; line-height: 1.4;
  clip-path: polygon(0 0, 100% 0, 95% 100%, 0 100%);
  box-shadow: 0 8px 22px rgba(0,20,60,.24);
}
.banner-cap .hero-slogan {
  position: relative; padding-left: 17px; font-size: 14px; font-weight: 600;
  line-height: 1.4; letter-spacing: 6px; color: rgba(255,255,255,.80);
  text-shadow: 0 2px 10px rgba(0,20,60,.30); white-space: nowrap;
}
.banner-cap .hero-slogan::before { content: ''; position: absolute; left: 0; top: 50%; transform: translateY(-50%); width: 1px; height: 13px; background: rgba(255,255,255,.38); }
.banner-cap h1 {
  margin-top: 18px; font-size: clamp(24px, 3vw, 48px); font-weight: 800;
  line-height: 1.24; letter-spacing: 3px; color: #fff;
  text-shadow: 0 3px 22px rgba(0,20,60,.42);
}
.banner-cap h1 em { font-style: normal; color: #ff4d3d; }
/* 英文标题更长：收紧字号与字距，避免长句压到右侧产品 */
body.lang-en .banner-cap h1 { font-size: clamp(20px, 2.2vw, 36px); letter-spacing: 0; max-width: 18em; }
body.lang-en .banner-cap p { max-width: 720px; }
body.lang-en .banner-cap .hero-slogan { letter-spacing: 4px; }
body.lang-en .banner-cap .hero-points { max-width: 760px; }
.banner-cap p { margin-top: 15px; max-width: 860px; font-size: clamp(13px, 1.05vw, 16px); line-height: 1.85; color: rgba(255,255,255,.85); letter-spacing: .6px; }
.banner-cap .hero-points { margin-top: 19px; padding: 0; list-style: none; display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px 32px; }
.banner-cap .hero-points li { position: relative; padding-left: 13px; font-size: 14px; line-height: 1.6; color: rgba(255,255,255,.90); letter-spacing: .5px; }
.banner-cap .hero-points li::before { content: ''; position: absolute; left: 0; top: 50%; transform: translateY(-50%); width: 5px; height: 5px; border-radius: 50%; background: #ff4d3d; }
.banner-cap .cta { margin-top: 28px; display: flex; gap: 14px; justify-content: flex-end; flex-wrap: wrap; }
.btn-glow { display: inline-block; padding: 13px 36px; background: #fff; color: #0a4fae; border-radius: 40px; font-size: 15px; font-weight: 600; letter-spacing: 1px; box-shadow: 0 10px 26px rgba(0,20,60,.24); transition: all .3s; }
.btn-glow:hover { transform: translateY(-3px); background: #f2f9ff; box-shadow: 0 14px 32px rgba(0,20,60,.30); }
.btn-ghost { display: inline-block; padding: 12px 34px; border: 1px solid rgba(255,255,255,.65); color: #fff; border-radius: 40px; font-size: 15px; background: rgba(255,255,255,.10); backdrop-filter: blur(6px); transition: all .3s; }
.btn-ghost:hover { background: #fff; border-color: #fff; color: #0a4fae; }
.banner-dots { position: absolute; bottom: 22px; left: 50%; transform: translateX(-50%); display: flex; gap: 9px; z-index: 5; }
.banner-dots i { width: 10px; height: 10px; border-radius: 1px; background: rgba(255,255,255,.42); cursor: pointer; transition: all .3s; }
.banner-dots i.on { background: #fff; transform: scale(1.2); }
.banner-arrow { position: absolute; top: 50%; transform: translateY(-50%); width: 44px; height: 44px; line-height: 40px; text-align: center; color: rgba(255,255,255,.7); font-size: 34px; font-weight: 300; cursor: pointer; z-index: 5; transition: color .25s, transform .25s; }
.banner-arrow:hover { color: #fff; }
.banner-arrow.prev { left: 30px; } .banner-arrow.next { right: 92px; }
.banner-arrow.prev:hover { transform: translateY(-50%) translateX(-4px); }
.banner-arrow.next:hover { transform: translateY(-50%) translateX(4px); }

/* ---- 数据统计带 ---- */
.stats { background: linear-gradient(90deg, var(--navy), #135FB5 50%, var(--navy)); position: relative; overflow: hidden; border-top: 1px solid rgba(0,163,254,.22); border-bottom: 1px solid rgba(0,163,254,.22); }
.stats::before { content: ''; position: absolute; inset: 0; background: radial-gradient(50% 120% at 50% 0%, rgba(0,163,254,.16), transparent 65%); }
.stats::after { content: ''; position: absolute; top: 0; left: -35%; width: 30%; height: 100%; background: linear-gradient(100deg, transparent, rgba(120,200,255,.10), transparent); animation: statsShine 6s ease-in-out infinite; pointer-events: none; }
@keyframes statsShine { 0% { left: -35% } 55%, 100% { left: 110% } }
.stats .wrap { display: grid; grid-template-columns: repeat(4, 1fr); position: relative; z-index: 1; }
.stat-item { text-align: center; padding: 46px 10px; color: #fff; border-right: 1px solid rgba(255,255,255,.08); position: relative; transition: transform .3s; }
.stat-item:hover { transform: translateY(-4px); }
.stat-item::after { content: ''; position: absolute; left: 50%; bottom: 0; transform: translateX(-50%) scaleX(0); width: 46px; height: 2px; border-radius: 2px; background: var(--grad); transition: transform .35s; }
.stat-item:hover::after { transform: translateX(-50%) scaleX(1); }
.stat-item:last-child { border-right: none; }
.stat-item .num { font-size: clamp(30px, 3.4vw, 44px); font-weight: 800; font-family: DIN, Arial, sans-serif; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat-item .num small { font-size: .5em; margin-left: 2px; }
.stat-item .lbl { margin-top: 6px; color: rgba(255,255,255,.6); font-size: 14px; letter-spacing: 2px; }

/* ---- 通用版块 ---- */
.section { padding: 88px 0; }
.section.gray { background: var(--bg-light); }
.section.dark { background: var(--navy); color: #fff; position: relative; overflow: hidden; }
.section.dark::before { content: ''; position: absolute; inset: 0; background: radial-gradient(45% 60% at 85% 15%, rgba(0,163,254,.12), transparent 60%), radial-gradient(40% 55% at 10% 90%, rgba(22,119,217,.14), transparent 60%); }
.sec-title { text-align: center; margin-bottom: 58px; position: relative; padding-top: 34px; }
.sec-title .en { position: absolute; top: -6px; left: 50%; transform: translateX(-50%); font-size: clamp(52px, 7.4vw, 96px); line-height: 1; letter-spacing: 10px; text-transform: uppercase; font-weight: 800; white-space: nowrap; color: rgba(21,101,216,.055); pointer-events: none; user-select: none; }
.sec-title h2 { font-size: clamp(28px, 3vw, 40px); font-weight: 800; letter-spacing: 2px; position: relative; z-index: 1; display: inline-block; padding-bottom: 18px; }
.sec-title h2::before { content: ''; position: absolute; left: -64px; top: 46%; width: 44px; height: 2px; background: linear-gradient(90deg, transparent, var(--cyan)); }
.sec-title h2::after { content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); width: 64px; height: 4px; border-radius: 2px; background: var(--grad); }
.sec-title .desc { position: relative; z-index: 1; margin-top: 14px; color: var(--text-light); font-size: 15px; }
.section.dark .sec-title h2 { color: #fff; }
.section.dark .sec-title .en { color: rgba(255,255,255,.05); }
.section.dark .sec-title .desc { color: rgba(255,255,255,.55); }

/* ---- 产品中心 ---- */
.prod-tabs { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-bottom: 44px; }
.prod-tabs a { padding: 10px 26px; border: 1px solid var(--border); border-radius: 40px; color: var(--text-light); font-size: 15px; transition: all .25s; background: #fff; }
.prod-tabs a:hover { border-color: var(--blue); color: var(--blue); transform: translateY(-2px); }
.prod-tabs a.on { background: var(--grad); border-color: transparent; color: #fff; box-shadow: 0 8px 20px rgba(22,119,217,.3); }
.prod-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.prod-card { background: #fff; border-radius: var(--r); overflow: hidden; transition: all .35s; box-shadow: 0 2px 12px rgba(11,27,51,.06); position: relative; border: 1px solid transparent; }
.prod-card::before { content: ''; position: absolute; left: 0; right: 0; top: 0; height: 3px; background: var(--grad); transform: scaleX(0); transform-origin: left; transition: transform .4s; z-index: 2; }
.prod-card:hover { transform: translateY(-8px); box-shadow: 0 22px 46px rgba(11,27,51,.16); border-color: rgba(22,119,217,.18); }
.prod-card:hover::before { transform: scaleX(1); }
.prod-card .pic { aspect-ratio: 1/1; overflow: hidden; background: linear-gradient(160deg, #f1f5fa, #e6eef8); position: relative; }
.prod-card .pic::after { content: ''; position: absolute; inset: 0; background: linear-gradient(160deg, transparent 50%, rgba(11,27,51,.42)); opacity: 0; transition: opacity .35s; }
.prod-card:hover .pic::after { opacity: 1; }
.prod-card .pic img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s cubic-bezier(.2,.7,.3,1); }
.prod-card:hover .pic img { transform: scale(1.09); }
.prod-card .info { padding: 18px 20px 20px; }
.prod-card .name { font-size: 15px; font-weight: 600; height: 2.7em; line-height: 1.35; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; transition: color .2s; }
.prod-card:hover .name { color: var(--blue); }
.prod-card .cat { font-size: 12px; color: var(--text-faint); margin-top: 10px; display: flex; justify-content: space-between; align-items: center; }
.prod-card .cat .more { color: var(--blue); opacity: 0; transform: translateX(-6px); transition: all .3s; font-weight: 600; }
.prod-card:hover .cat .more { opacity: 1; transform: none; }
.more-btn { display: inline-flex; align-items: center; gap: 10px; margin: 50px auto 0; padding: 14px 44px; border-radius: 40px; border: 1px solid var(--blue); color: var(--blue); font-size: 15px; font-weight: 600; transition: all .3s; position: relative; left: 50%; transform: translateX(-50%); }
.more-btn:hover { background: var(--grad); color: #fff; border-color: transparent; box-shadow: 0 10px 26px rgba(22,119,217,.35); }

/* ---- 优势（深色科技） ---- */
.section.dark { background: linear-gradient(180deg, var(--navy) 0%, #135FB5 50%, var(--navy) 100%); }
.section.dark::after { content: ''; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px); background-size: 46px 46px; -webkit-mask-image: radial-gradient(75% 75% at 50% 42%, #000 25%, transparent 100%); mask-image: radial-gradient(75% 75% at 50% 42%, #000 25%, transparent 100%); pointer-events: none; }
.adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; counter-reset: adv; }
.adv-item { position: relative; overflow: hidden; background: linear-gradient(160deg, rgba(255,255,255,.09), rgba(255,255,255,.025)); border: 1px solid rgba(255,255,255,.12); border-radius: var(--r); padding: 38px 26px 32px; transition: all .35s; backdrop-filter: blur(4px); }
.adv-item::before { counter-increment: adv; content: '0' counter(adv); position: absolute; top: 14px; right: 18px; font-size: 50px; font-weight: 800; font-family: DIN, Arial, sans-serif; line-height: 1; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; opacity: .22; transition: opacity .35s; }
.adv-item::after { content: ''; position: absolute; left: 0; top: 0; width: 100%; height: 3px; background: var(--grad); transform: scaleX(0); transform-origin: left; transition: transform .45s ease; }
.adv-item:hover { background: linear-gradient(160deg, rgba(22,119,217,.28), rgba(0,163,254,.10)); border-color: rgba(0,163,254,.55); transform: translateY(-8px); box-shadow: 0 24px 50px rgba(0,0,0,.45), 0 0 0 1px rgba(0,163,254,.18) inset; }
.adv-item:hover::before { opacity: .75; }
.adv-item:hover::after { transform: scaleX(1); }
.adv-item .ico { position: relative; width: 62px; height: 62px; border-radius: 16px; background: var(--grad); display: flex; align-items: center; justify-content: center; margin-bottom: 20px; box-shadow: 0 10px 26px rgba(22,119,217,.45); transition: transform .35s; }
.adv-item .ico::after { content: ''; position: absolute; inset: -7px; border-radius: 21px; border: 1px solid rgba(0,163,254,.45); opacity: 0; transition: opacity .35s; }
.adv-item:hover .ico { transform: translateY(-3px) rotate(-4deg); }
.adv-item:hover .ico::after { opacity: 1; }
.adv-item .ico svg { width: 28px; height: 28px; }
.adv-item h3 { font-size: 18px; color: #fff; margin-bottom: 10px; letter-spacing: 1px; }
.adv-item p { font-size: 13px; color: rgba(255,255,255,.6); line-height: 1.8; }

/* 产品图淡入深色背景（装饰层，不影响可读性） */
.section.dark > .wrap { position: relative; z-index: 1; }
.adv-bg { position: absolute; top: 50%; left: 50%; width: 44%; max-width: 660px; aspect-ratio: 1 / 1; background: url('/uploads/adv_machine_cut.png') center / contain no-repeat; transform: translate(-50%, -50%); opacity: .33; -webkit-mask-image: radial-gradient(closest-side at 50% 50%, #000 58%, rgba(0,0,0,.7) 78%, transparent 94%); mask-image: radial-gradient(closest-side at 50% 50%, #000 58%, rgba(0,0,0,.7) 78%, transparent 94%); pointer-events: none; z-index: 0; }

/* ---- 关于我们 ---- */
.about-sec { background: linear-gradient(180deg, #ffffff 0%, #eef4fc 44%, #eef4fc 56%, #ffffff 100%); position: relative; overflow: hidden; }
.about-sec::before { content: ''; position: absolute; top: -140px; right: -140px; width: 420px; height: 420px; border-radius: 50%; background: radial-gradient(circle, rgba(22,119,217,.12), transparent 65%); }
.about-sec::after { content: ''; position: absolute; bottom: -160px; left: -120px; width: 380px; height: 380px; border-radius: 50%; background: radial-gradient(circle, rgba(0,163,254,.10), transparent 65%); }
.about-flex { display: flex; gap: 76px; align-items: center; position: relative; z-index: 1; }
.about-pic { flex: 0 0 47%; position: relative; padding: 16px; background: #fff; border-radius: 24px; box-shadow: var(--shadow); }
.about-pic::before { content: ''; position: absolute; top: -22px; left: -22px; width: 100%; height: 100%; border-radius: 24px; background: var(--grad); opacity: .16; transition: all .4s; }
.about-pic:hover::before { top: -14px; left: -14px; opacity: .3; }
.about-pic::after { content: ''; position: absolute; left: -44px; bottom: 18px; width: 96px; height: 96px; background-image: radial-gradient(rgba(22,119,217,.5) 2.2px, transparent 2.2px); background-size: 14px 14px; z-index: 0; }
.about-pic img { width: 100%; border-radius: 14px; position: relative; z-index: 1; transition: transform .5s; }
.about-pic:hover img { transform: scale(1.015); }
.about-pic .exp-badge { position: absolute; right: -20px; bottom: -24px; z-index: 2; background: var(--grad); color: #fff; border-radius: 16px; padding: 20px 28px; text-align: center; box-shadow: 0 14px 34px rgba(22,119,217,.45); animation: floatY 4s ease-in-out infinite; }
.about-pic .exp-badge::before { content: ''; position: absolute; inset: 6px; border: 1px dashed rgba(255,255,255,.4); border-radius: 11px; pointer-events: none; }
.about-pic .exp-badge .y { font-size: 38px; font-weight: 800; line-height: 1; font-family: DIN, Arial; }
.about-pic .exp-badge .t { font-size: 13px; margin-top: 6px; opacity: .9; letter-spacing: 2px; }
@keyframes floatY { 0%, 100% { transform: translateY(0) } 50% { transform: translateY(-10px) } }
.about-txt .kicker { display: inline-flex; align-items: center; gap: 10px; color: var(--blue); font-size: 13px; letter-spacing: 4px; text-transform: uppercase; font-weight: 600; }
.about-txt .kicker::before { content: ''; width: 34px; height: 2px; background: var(--grad); border-radius: 2px; }
.about-txt h3 { font-size: clamp(26px, 2.6vw, 36px); margin: 12px 0 20px; font-weight: 800; line-height: 1.35; }
.about-txt h3 em { font-style: normal; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.about-txt > p { color: var(--text-light); margin-bottom: 14px; text-indent: 2em; }
.about-points { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 20px; margin: 22px 0 4px; }
.about-points li { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--text); font-weight: 500; }
.about-points li::before { content: '✓'; flex-shrink: 0; width: 22px; height: 22px; border-radius: 50%; background: rgba(22,119,217,.1); color: var(--blue); font-size: 12px; font-weight: 800; display: flex; align-items: center; justify-content: center; }
.about-txt .btn-row { margin-top: 30px; display: flex; gap: 14px; flex-wrap: wrap; }
.btn-solid { display: inline-block; padding: 14px 40px; background: var(--grad); color: #fff; border-radius: 40px; font-size: 15px; font-weight: 600; box-shadow: 0 8px 22px rgba(22,119,217,.3); transition: all .3s; }
.btn-solid:hover { transform: translateY(-3px); box-shadow: 0 14px 30px rgba(22,119,217,.45); }
.btn-line { display: inline-block; padding: 13px 38px; border: 1px solid #c8d6e8; color: var(--text); border-radius: 40px; font-size: 15px; transition: all .3s; }
.btn-line:hover { border-color: var(--blue); color: var(--blue); background: rgba(22,119,217,.05); }

/* ---- 五大优势（首页） ---- */
.adv5-sec { background: linear-gradient(180deg, #fff 0%, #f6f9fd 12%, #f6f9fd 88%, #fff 100%); position: relative; overflow: hidden; }
.adv5-sec::before { content: ''; position: absolute; top: -130px; right: -110px; width: 400px; height: 400px; border-radius: 50%; background: radial-gradient(circle, rgba(22,119,217,.08), transparent 66%); pointer-events: none; }
.adv5-sec::after { content: ''; position: absolute; bottom: -150px; left: -130px; width: 380px; height: 380px; border-radius: 50%; background: radial-gradient(circle, rgba(0,163,254,.07), transparent 66%); pointer-events: none; }
.adv5-list { position: relative; z-index: 1; }
.adv5-row { display: grid; grid-template-columns: 1.02fr 1fr; align-items: center; gap: 64px; padding: 44px 0; border-top: 1px dashed #dde7f2; }
.adv5-row:first-child { border-top: none; padding-top: 4px; }
.adv5-row:nth-child(even) .adv5-txt { order: 2; }
.adv5-row:nth-child(even) .adv5-pic { order: 1; }
.adv5-txt { max-width: 560px; }
.adv5-no { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.adv5-no::before { content: ''; width: 4px; height: 30px; border-radius: 3px; background: var(--grad); }
.adv5-no span { font-size: 38px; font-weight: 800; line-height: 1; font-family: DIN, Arial, sans-serif; letter-spacing: 1px; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.adv5-txt h3 { font-size: clamp(21px, 2vw, 26px); font-weight: 800; letter-spacing: 1px; color: var(--navy); margin-bottom: 14px; transition: color .25s; }
.adv5-row:hover .adv5-txt h3 { color: var(--blue); }
.adv5-txt p { font-size: 15px; line-height: 1.95; color: var(--text-light); }
.adv5-link { display: inline-flex; align-items: center; margin-top: 18px; padding-bottom: 3px; font-size: 14px; font-weight: 600; color: var(--blue); border-bottom: 1px solid rgba(22,119,217,.28); transition: border-color .25s, color .25s; }
.adv5-link:hover { border-color: var(--blue); }
.adv5-pic { position: relative; aspect-ratio: 4 / 3; display: flex; align-items: center; justify-content: center; padding: 28px; border: 1px solid #e2ebf6; border-radius: 22px; background: linear-gradient(160deg, #eef4fc, #dfebfa); box-shadow: inset 0 1px 0 #fff; }
.adv5-pic::before { content: ''; position: absolute; inset: 14px; border: 1px dashed rgba(22,119,217,.16); border-radius: 14px; pointer-events: none; }
.adv5-pic img { width: 100%; height: 100%; object-fit: contain; mix-blend-mode: multiply; transition: transform .55s cubic-bezier(.2,.7,.3,1); }
.adv5-row:hover .adv5-pic img { transform: scale(1.04); }
.adv5-more { position: relative; z-index: 1; margin-top: 24px; padding-top: 26px; border-top: 1px dashed #dde7f2; text-align: center; font-size: 14px; color: var(--text-faint); }
.adv5-more a { color: var(--text-light); margin: 0 8px; transition: color .2s; }
.adv5-more a:hover { color: var(--blue); }

/* ---- 新闻 ---- */
.news-flex { display: grid; grid-template-columns: minmax(0, 440px) 1fr; gap: 32px; align-items: stretch; }
.news-first { position: relative; display: block; min-height: 372px; border-radius: 4px; overflow: hidden; background: #e9eef5; box-shadow: 0 10px 30px rgba(11,27,51,.13); }
.news-first img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.news-first:hover img { transform: scale(1.05); }
.news-first .cap { position: absolute; left: 0; right: 0; bottom: 0; padding: 54px 22px 20px; background: linear-gradient(transparent, rgba(24,31,42,.5) 32%, rgba(24,31,42,.9)); color: #fff; }
.news-first .cap h3 { font-size: 16px; font-weight: 600; line-height: 1.55; margin-bottom: 7px; }
.news-first .cap p { font-size: 12px; color: rgba(255,255,255,.6); overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.news-list { display: flex; flex-direction: column; background: #fff; border: 1px solid #edf1f6; box-shadow: 0 6px 22px rgba(11,27,51,.05); overflow: hidden; }
.news-list li { flex: 1 1 0; display: flex; min-height: 46px; border-bottom: 1px solid #edf1f6; }
.news-list li:last-child { border-bottom: 0; }
.news-list li:nth-child(even) { background: #fafbfc; }
.news-list a { display: flex; align-items: center; gap: 14px; width: 100%; padding: 0 18px; transition: background .25s; }
.news-list a:hover { background: rgba(22,119,217,.05); }
.news-list .tag { flex: 0 0 auto; font-size: 11px; line-height: 1.6; padding: 1px 8px; border-radius: 2px; background: rgba(22,119,217,.08); color: var(--blue); white-space: nowrap; }
.news-list .t { flex: 1; min-width: 0; font-size: 14px; color: #33425a; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; transition: color .2s; }
.news-list a:hover .t { color: var(--blue); }
.news-list .date { flex-shrink: 0; margin-left: auto; color: #b6c0cc; font-size: 12px; font-family: Arial; white-space: nowrap; }

/* ---- CTA 咨询带 ---- */
.cta-band { background: var(--grad); position: relative; overflow: hidden; }
.cta-band::before { content: ''; position: absolute; inset: 0; background: radial-gradient(60% 100% at 100% 0%, rgba(255,255,255,.18), transparent); }
.cta-band .wrap { display: flex; align-items: center; justify-content: space-between; gap: 30px; padding: 54px 0; position: relative; flex-wrap: wrap; }
.cta-band h3 { color: #fff; font-size: clamp(22px, 2.4vw, 32px); font-weight: 800; letter-spacing: 1px; }
.cta-band p { color: rgba(255,255,255,.85); margin-top: 6px; }
.cta-band .cta-tel { font-size: clamp(28px, 3vw, 40px); font-weight: 800; color: #fff; font-family: DIN, Arial; letter-spacing: 1px; display: flex; align-items: center; gap: 14px; }

/* ---- 页脚 ---- */
.footer { background: var(--navy); color: rgba(255,255,255,.55); }
.footer .cols { display: grid; grid-template-columns: 1.3fr 1fr 1.2fr 190px; gap: 48px; padding: 64px 0 40px; }
.footer h4 { color: #fff; font-size: 17px; margin-bottom: 22px; position: relative; padding-bottom: 12px; letter-spacing: 1px; }
.footer h4::after { content: ''; position: absolute; left: 0; bottom: 0; width: 36px; height: 3px; border-radius: 2px; background: var(--grad); }
.footer li { margin-bottom: 12px; font-size: 13px; }
.footer a { transition: color .2s; }
.footer a:hover { color: var(--cyan); }
.footer .c-item { display: flex; gap: 10px; margin-bottom: 14px; font-size: 13px; align-items: flex-start; }
.footer .c-item b { color: rgba(255,255,255,.85); flex-shrink: 0; }
.footer .qr img { width: 130px; border-radius: 10px; }
.footer .qr p { text-align: center; margin-top: 10px; font-size: 12px; }
.copybar { border-top: 1px solid rgba(255,255,255,.08); padding: 18px 0; font-size: 12px; text-align: center; color: rgba(255,255,255,.35); }
.copybar a { color: rgba(255,255,255,.35); }

/* ---- 浮动侧栏 ---- */
.floatbar { position: fixed; right: 14px; top: 50%; transform: translateY(-50%); z-index: 90; display: flex; flex-direction: column; gap: 8px; }
.floatbar .f-item { display: flex; flex-direction: column; align-items: center; justify-content: center; width: 56px; height: 56px; border-radius: 14px; background: #fff; box-shadow: 0 6px 20px rgba(11,27,51,.14); color: var(--text-light); font-size: 11px; text-align: center; cursor: pointer; position: relative; gap: 2px; transition: all .25s ease; overflow: visible; }
.floatbar .f-item:hover { background: var(--grad); color: #fff; box-shadow: 0 8px 24px rgba(22,119,217,.35); transform: translateY(-2px); }
.floatbar .f-item .f-ico { display: flex; align-items: center; justify-content: center; width: 22px; height: 22px; }
.floatbar .f-item .f-ico svg { width: 100%; height: 100%; }
.floatbar .f-item .f-txt { font-size: 11px; line-height: 1; white-space: nowrap; }
.floatbar .f-pop { position: absolute; right: calc(100% + 10px); top: 50%; transform: translateY(-50%) translateX(8px); background: #fff; padding: 14px 16px; border-radius: 14px; box-shadow: var(--shadow-lg); opacity: 0; visibility: hidden; transition: all .25s ease; white-space: nowrap; z-index: 91; }
.floatbar .f-item:hover .f-pop,
.floatbar .f-item.open .f-pop { opacity: 1; visibility: visible; transform: translateY(-50%) translateX(0); }
.floatbar .f-pop .pop-label { display: block; font-size: 12px; color: var(--text-faint); margin-bottom: 4px; }
.floatbar .f-pop .pop-tel { display: block; font-size: 22px; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; font-weight: 800; line-height: 1.2; }
.floatbar .f-pop .pop-sub { display: block; font-size: 12px; color: var(--text-light); margin-top: 6px; }
.floatbar .f-pop img { width: 140px; border-radius: 8px; display: block; }
.floatbar .f-pop .pop-sub { text-align: center; margin-top: 8px; }

/* ---- 在线咨询弹窗 ---- */
.ask-mask { position: fixed; inset: 0; background: rgba(11,27,51,.55); backdrop-filter: blur(3px); z-index: 999; display: flex; align-items: center; justify-content: center; opacity: 0; visibility: hidden; transition: opacity .3s ease, visibility .3s ease; padding: 20px; }
.ask-mask.show { opacity: 1; visibility: visible; }
.ask-box { position: relative; width: 100%; max-width: 420px; background: #fff; border-radius: 18px; box-shadow: var(--shadow-lg); padding: 34px 30px 28px; transform: translateY(20px) scale(.96); transition: transform .3s cubic-bezier(.16,.84,.44,1); }
.ask-mask.show .ask-box { transform: none; }
.ask-close { position: absolute; top: 14px; right: 14px; width: 32px; height: 32px; border: none; background: var(--bg-light); border-radius: 50%; cursor: pointer; display: flex; align-items: center; justify-content: center; color: var(--text-faint); transition: all .2s; }
.ask-close:hover { background: var(--navy); color: #fff; transform: rotate(90deg); }
.ask-close svg { width: 16px; height: 16px; }
.ask-head { text-align: center; margin-bottom: 22px; }
.ask-head h3 { font-size: 22px; font-weight: 700; color: var(--navy); margin-bottom: 6px; }
.ask-head p { font-size: 13px; color: var(--text-light); }
#askForm { display: flex; flex-direction: column; gap: 12px; }
#askForm input, #askForm textarea { width: 100%; border: 1px solid var(--border); border-radius: 10px; padding: 13px 14px; font-size: 14px; outline: none; font-family: inherit; background: var(--bg-light); transition: all .25s; }
#askForm input:focus, #askForm textarea:focus { border-color: var(--blue); background: #fff; box-shadow: 0 0 0 3px rgba(22,119,217,.1); }
#askForm textarea { resize: vertical; min-height: 90px; }
#askForm button { background: var(--grad); color: #fff; border: none; padding: 13px; font-size: 15px; font-weight: 600; border-radius: 40px; cursor: pointer; box-shadow: 0 8px 22px rgba(22,119,217,.3); transition: all .3s; margin-top: 4px; }
#askForm button:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(22,119,217,.45); }
.ask-tip { text-align: center; font-size: 13px; min-height: 18px; }
.ask-foot { text-align: center; margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--border); font-size: 13px; color: var(--text-light); }
.ask-foot a { color: var(--blue); font-weight: 600; }

/* ---- 内页 ---- */
.page-banner { background: var(--navy); position: relative; overflow: hidden; padding: 70px 0; color: #fff; }
.page-banner::before { content: ''; position: absolute; inset: 0; background: radial-gradient(50% 100% at 80% 0%, rgba(0,163,254,.18), transparent 60%); }
.page-banner h1 { font-size: clamp(26px, 3vw, 40px); font-weight: 800; letter-spacing: 2px; position: relative; }
.page-banner .sub { color: var(--cyan); font-size: 13px; letter-spacing: 4px; text-transform: uppercase; margin-top: 8px; }
.crumb { background: #fff; border-bottom: 1px solid var(--border); padding: 13px 0; font-size: 13px; color: var(--text-faint); }
.crumb a { color: var(--text-light); }
.crumb a:hover { color: var(--blue); }
.page-flex { display: flex; gap: 34px; padding: 44px 0 70px; }
.sidebar { flex: 0 0 264px; }
.side-box { border-radius: var(--r); margin-bottom: 22px; overflow: hidden; box-shadow: var(--shadow); background: #fff; }
.side-box .side-tit { background: var(--navy); color: #fff; padding: 16px 20px; font-size: 16px; font-weight: 600; letter-spacing: 1px; position: relative; }
.side-box .side-tit::after { content: ''; position: absolute; left: 20px; bottom: 0; width: 30px; height: 3px; background: var(--grad); }
.side-box .side-body { padding: 8px 0; }
.side-cat a { display: block; padding: 13px 20px; color: var(--text); font-size: 14px; transition: all .25s; border-left: 3px solid transparent; }
.side-cat a:hover { color: var(--blue); background: var(--bg-light); padding-left: 26px; }
.side-cat a.on { color: var(--blue); font-weight: 600; background: rgba(22,119,217,.06); border-left-color: var(--cyan); }
.side-contact { padding: 18px 20px; font-size: 13px; color: var(--text-light); }
.side-contact .hot { font-size: 23px; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; font-weight: 800; margin: 8px 0 14px; font-family: DIN, Arial; }
.side-contact .qr { width: 120px; margin-top: 12px; border-radius: 8px; }
.main-col { flex: 1; min-width: 0; }

/* 产品详情 */
.detail-head { display: flex; gap: 44px; margin-bottom: 44px; }
.detail-gallery { flex: 0 0 460px; min-width: 0; }
.detail-pic { border-radius: 18px; overflow: hidden; background: #fff; box-shadow: var(--shadow); }
.detail-pic img { display: block; width: 100%; aspect-ratio: 1/1; object-fit: contain; }
.detail-thumbs { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.detail-thumbs .thumb { flex: 0 0 calc((100% - 50px) / 6); aspect-ratio: 1/1; padding: 0; border: 2px solid transparent; border-radius: 10px; overflow: hidden; background: #fff; cursor: pointer; transition: border-color .2s, box-shadow .2s; }
.detail-thumbs .thumb img { width: 100%; height: 100%; object-fit: contain; }
.detail-thumbs .thumb:hover { border-color: rgba(0,163,254,.45); }
.detail-thumbs .thumb.on { border-color: var(--cyan); box-shadow: 0 4px 14px rgba(0,163,254,.25); }
.detail-info h1 { font-size: clamp(22px, 2.2vw, 30px); line-height: 1.4; margin-bottom: 16px; font-weight: 800; }
.detail-info .sum { background: var(--bg-light); border-left: 3px solid var(--blue); border-radius: 0 10px 10px 0; padding: 16px 20px; color: var(--text-light); font-size: 14px; margin-bottom: 20px; }
.detail-info .meta { color: var(--text-faint); font-size: 13px; margin-bottom: 20px; }
.detail-info .meta span { margin-right: 20px; }
.detail-info .hotline { font-size: 15px; margin-bottom: 24px; color: var(--text-light); }
.detail-info .hotline b { font-size: 30px; color: var(--blue); font-family: DIN, Arial; }
.detail-tabs { border-bottom: 1px solid var(--border); margin-bottom: 30px; }
.detail-tabs span { display: inline-block; padding: 14px 30px; font-size: 18px; font-weight: 700; color: var(--blue); border-bottom: 3px solid var(--cyan); margin-bottom: -1px; letter-spacing: 1px; }
.rich-content { font-size: 15px; line-height: 1.9; color: #3d4a5c; }
.rich-content.plain { white-space: pre-wrap; word-break: break-word; }
.rich-content img { max-width: 100%; height: auto; margin: 12px auto; border-radius: 8px; }
.rich-content p { margin-bottom: 1em; }
.rich-content table { border-collapse: collapse; width: 100%; }
.rich-content table td, .rich-content table th { border: 1px solid #dde5ee; padding: 8px 12px; }
.pn-nav { display: flex; justify-content: space-between; border-top: 1px solid var(--border); margin-top: 44px; padding-top: 20px; font-size: 14px; }
.pn-nav a { max-width: 48%; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; color: var(--text-light); }
.pn-nav a:hover { color: var(--blue); }

/* 新闻列表页（最新文章） */
.np-head { text-align: center; margin-bottom: 34px; }
.np-head .np-k { display: block; color: var(--blue); font-size: 13px; letter-spacing: 2px; }
.np-head h2 { font-size: 22px; font-weight: 700; letter-spacing: 3px; color: #2c384b; margin-top: 5px; }
.np-rule { display: block; width: 34px; height: 2px; background: var(--blue); margin: 12px auto 0; }
.np-body { display: flex; gap: 30px; align-items: stretch; }
.np-collage { flex: 0 0 372px; display: grid; grid-template-columns: 76px 1fr; gap: 9px; padding: 10px; background: #23272d; border-radius: 4px; }
.np-thumbs { display: flex; flex-direction: column; gap: 9px; min-height: 0; }
.np-thumbs a { flex: 1 1 0; min-height: 0; overflow: hidden; background: #2f343b; }
.np-thumbs img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.np-thumbs a:hover img { transform: scale(1.08); }
.np-feature { display: block; overflow: hidden; background: #23272d; }
.np-feature img { width: 100%; height: 100%; object-fit: contain; transition: transform .5s; }
.np-feature:hover img { transform: scale(1.03); }
.np-list { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.np-list li { flex: 1 1 0; display: flex; align-items: center; border-bottom: 1px solid #edf1f6; }
.np-list li:first-child { border-top: 1px solid #edf1f6; }
.np-list a { display: block; width: 100%; padding: 8px 2px; }
.np-list h3 { font-size: 14px; font-weight: 600; color: #2f3a4b; line-height: 1.6; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; transition: color .2s; }
.np-list p { margin-top: 3px; font-size: 12px; color: #98a3b3; line-height: 1.65; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.np-list a:hover h3 { color: var(--blue); }
.np-empty { padding: 60px 0; text-align: center; color: #999; }

/* 视频中心 */
.video-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.video-grid.cols-3 { grid-template-columns: repeat(3, 1fr); gap: 18px; }
.video-card { display: block; background: #fff; border-radius: var(--r); overflow: hidden; box-shadow: 0 2px 12px rgba(11,27,51,.06); transition: all .35s; }
.video-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.video-card .pic { position: relative; aspect-ratio: 16/9; background: var(--navy); overflow: hidden; }
.video-card .pic img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s cubic-bezier(.2,.7,.3,1); }
.video-card:hover .pic img { transform: scale(1.07); }
.video-card .pic::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 45%, rgba(11,27,51,.45)); }
.video-card .play { position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); width: 62px; height: 62px; border-radius: 50%; background: rgba(11,27,51,.55); border: 2px solid rgba(255,255,255,.75); backdrop-filter: blur(4px); z-index: 2; transition: all .3s; }
.video-card .play::after { content: ''; position: absolute; top: 50%; left: 50%; transform: translate(-40%,-50%); border-style: solid; border-width: 10px 0 10px 16px; border-color: transparent transparent transparent #fff; }
.video-card:hover .play { background: var(--grad); border-color: transparent; transform: translate(-50%,-50%) scale(1.08); }
.video-card .info { padding: 16px 18px 18px; }
.video-card .name { font-size: 15px; font-weight: 600; line-height: 1.4; height: 2.8em; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; transition: color .2s; }
.video-card:hover .name { color: var(--blue); }
.video-card .cat { font-size: 12px; color: var(--text-faint); margin-top: 10px; display: flex; justify-content: space-between; align-items: center; }
.video-card .cat .more { color: var(--blue); font-weight: 600; opacity: 0; transform: translateX(-6px); transition: all .3s; }
.video-card:hover .cat .more { opacity: 1; transform: none; }

/* 视频列表页 - 主推视频 */
.video-featured { display: grid; grid-template-columns: 1.3fr 1fr; background: #fff; border-radius: 18px; overflow: hidden; box-shadow: var(--shadow); transition: transform .35s, box-shadow .35s; }
.video-featured:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.video-featured .pic { position: relative; min-height: 300px; background: var(--navy); overflow: hidden; }
.video-featured .pic img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .7s cubic-bezier(.2,.7,.3,1); }
.video-featured:hover .pic img { transform: scale(1.05); }
.video-featured .pic::after { content: ''; position: absolute; inset: 0; background: linear-gradient(80deg, rgba(11,27,51,.12), rgba(11,27,51,.42)); }
.vf-badge { position: absolute; top: 16px; left: 16px; z-index: 3; padding: 5px 12px; border-radius: 20px; background: var(--grad); color: #fff; font-size: 12px; letter-spacing: 1px; box-shadow: 0 6px 16px rgba(22,119,217,.4); }
.vf-play { position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); z-index: 3; width: 84px; height: 84px; border-radius: 50%; background: rgba(255,255,255,.14); border: 2px solid rgba(255,255,255,.8); backdrop-filter: blur(6px); transition: all .35s; }
.vf-play::after { content: ''; position: absolute; top: 50%; left: 50%; transform: translate(-38%,-50%); border-style: solid; border-width: 13px 0 13px 21px; border-color: transparent transparent transparent #fff; }
.vf-play::before { content: ''; position: absolute; inset: -8px; border-radius: 50%; border: 1px solid rgba(255,255,255,.4); animation: vfPulse 2.6s ease-out infinite; }
@keyframes vfPulse { from { transform: scale(.9); opacity: .9; } to { transform: scale(1.4); opacity: 0; } }
.video-featured:hover .vf-play { background: var(--grad); border-color: transparent; }
.video-featured .txt { position: relative; overflow: hidden; display: flex; flex-direction: column; justify-content: center; padding: 32px 34px; background: var(--navy); color: #fff; }
.video-featured .txt::before { content: ''; position: absolute; top: -90px; right: -90px; width: 280px; height: 280px; border-radius: 50%; background: radial-gradient(circle, rgba(0,163,254,.3), transparent 70%); }
.video-featured .txt > * { position: relative; }
.vf-kicker { font-size: 12px; letter-spacing: 3px; text-transform: uppercase; color: var(--cyan); }
.video-featured h2 { font-size: clamp(20px, 2vw, 26px); font-weight: 800; line-height: 1.45; margin: 12px 0; }
.vf-sum { font-size: 13px; line-height: 1.8; color: rgba(255,255,255,.62); display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.vf-meta { display: flex; gap: 18px; margin-top: 18px; font-size: 12px; color: rgba(255,255,255,.45); }
.vf-btn { align-self: flex-start; margin-top: 24px; padding: 11px 28px; border-radius: 30px; background: var(--grad); font-size: 14px; font-weight: 600; box-shadow: 0 8px 22px rgba(22,119,217,.35); transition: transform .25s, box-shadow .25s; }
.video-featured:hover .vf-btn { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(22,119,217,.5); }
.video-sec-head { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; margin: 38px 0 18px; }
.video-sec-head h3 { position: relative; padding-left: 15px; font-size: 21px; font-weight: 800; letter-spacing: 1px; }
.video-sec-head h3::before { content: ''; position: absolute; left: 0; top: 50%; transform: translateY(-50%); width: 5px; height: 20px; border-radius: 3px; background: var(--grad); }
.video-sec-head span { font-size: 13px; color: var(--text-faint); }

/* 视频列表页 - 空状态 */
.video-empty { padding: 70px 24px; text-align: center; background: #fff; border-radius: 18px; box-shadow: var(--shadow); }
.video-empty .ve-ico { display: flex; align-items: center; justify-content: center; width: 74px; height: 74px; margin: 0 auto 22px; border-radius: 50%; background: var(--grad); color: #fff; font-size: 24px; padding-left: 4px; box-shadow: 0 10px 26px rgba(22,119,217,.3); }
.video-empty h3 { font-size: 20px; margin-bottom: 10px; }
.video-empty p { font-size: 14px; color: var(--text-light); margin-bottom: 26px; }
.video-empty .ve-btn { display: inline-block; padding: 12px 32px; border-radius: 30px; background: var(--navy); color: #fff; font-size: 14px; transition: all .25s; }
.video-empty .ve-btn:hover { background: var(--grad); transform: translateY(-2px); }

/* 视频列表页 - 底部咨询 */
.video-cta { position: relative; overflow: hidden; display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-top: 40px; padding: 30px 34px; border-radius: 18px; background: var(--navy); color: #fff; }
.video-cta::before { content: ''; position: absolute; inset: 0; background: radial-gradient(60% 130% at 100% 0%, rgba(0,163,254,.22), transparent 60%); }
.video-cta .vc-txt, .video-cta .vc-tel { position: relative; }
.video-cta h3 { font-size: 20px; font-weight: 700; letter-spacing: 1px; }
.video-cta p { margin-top: 6px; font-size: 13px; color: rgba(255,255,255,.6); }
.video-cta .vc-tel { flex-shrink: 0; text-align: right; }
.video-cta .vc-tel small { display: block; font-size: 12px; letter-spacing: 1px; color: rgba(255,255,255,.5); }
.video-cta .vc-tel b { font-size: 28px; font-family: DIN, Arial, sans-serif; letter-spacing: 1px; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* 视频详情 */
.video-player { background: #000; border-radius: 16px; overflow: hidden; box-shadow: var(--shadow); }
.video-player video,
.video-player iframe { display: block; width: 100%; aspect-ratio: 16/9; background: #000; border: 0; }
.rich-content iframe.embed-video { display: block; width: 100%; max-width: 860px; aspect-ratio: 16/9; background: #000; border: 0; margin: 16px auto; border-radius: 8px; }
.video-head { padding: 22px 0 18px; border-bottom: 1px solid var(--border); }
.video-head h1 { font-size: clamp(21px, 2.2vw, 28px); font-weight: 800; line-height: 1.4; }
.video-head .meta { margin-top: 10px; color: var(--text-faint); font-size: 13px; }
.video-head .meta span { margin-right: 20px; }
.video-sum { background: var(--bg-light); border-left: 3px solid var(--blue); border-radius: 0 10px 10px 0; padding: 14px 18px; color: var(--text-light); font-size: 14px; margin: 20px 0 26px; }
.side-videos { padding: 12px 14px; }
.side-videos a { display: flex; gap: 10px; align-items: center; padding: 8px 0; border-bottom: 1px dashed var(--border); font-size: 13px; color: var(--text-light); }
.side-videos a:last-child { border-bottom: none; }
.side-videos a:hover { color: var(--blue); }
.side-videos img { flex: 0 0 96px; width: 96px; height: 54px; object-fit: cover; border-radius: 6px; background: #eef2f7; }
.side-videos span { flex: 1; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* 分页 */
.pager { display: flex; justify-content: center; gap: 10px; margin: 40px 0 10px; }
.pager a { min-width: 42px; height: 42px; line-height: 40px; text-align: center; border: 1px solid var(--border); border-radius: 10px; color: var(--text-light); padding: 0 12px; background: #fff; transition: all .25s; }
.pager a:hover { border-color: var(--blue); color: var(--blue); }
.pager a.on { background: var(--grad); border-color: transparent; color: #fff; box-shadow: 0 6px 16px rgba(22,119,217,.3); }

/* 文章页 */
.article-head { border-bottom: 1px solid var(--border); padding-bottom: 22px; margin-bottom: 28px; text-align: center; }
.article-head h1 { font-size: clamp(22px, 2.2vw, 30px); margin-bottom: 14px; font-weight: 800; }
.article-head .meta { color: var(--text-faint); font-size: 13px; }
.article-head .meta span { margin: 0 14px; }

/* 留言表单 */
.msg-form { background: #fff; border-radius: 18px; padding: 34px; margin-top: 34px; box-shadow: var(--shadow); }
.msg-form h3 { font-size: 20px; margin-bottom: 20px; font-weight: 700; }
.msg-form .row { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; margin-bottom: 14px; }
.msg-form input, .msg-form textarea { width: 100%; border: 1px solid var(--border); border-radius: 10px; padding: 13px 14px; font-size: 14px; outline: none; font-family: inherit; background: var(--bg-light); transition: all .25s; }
.msg-form input:focus, .msg-form textarea:focus { border-color: var(--blue); background: #fff; box-shadow: 0 0 0 3px rgba(22,119,217,.1); }
.msg-form textarea { resize: vertical; min-height: 120px; }
.msg-form button { background: var(--grad); color: #fff; border: none; padding: 14px 52px; font-size: 15px; font-weight: 600; border-radius: 40px; cursor: pointer; box-shadow: 0 8px 22px rgba(22,119,217,.3); transition: all .3s; }
.msg-form button:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(22,119,217,.45); }
.msg-tip { margin-top: 12px; font-size: 13px; }

/* 404 */
.p404 { text-align: center; padding: 120px 0; }
.p404 h1 { font-size: 90px; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.p404 p { color: var(--text-light); margin: 16px 0 30px; }

/* ---- 响应式 ---- */
@media (max-width: 1100px) {
  .nav-menu > li > a { padding: 0 12px; font-size: 15px; }
  .nav-menu > li > a::after { left: 12px; right: 12px; }
  .detail-head { gap: 30px; }
  .detail-gallery { flex-basis: 400px; }
}
@media (max-width: 860px) {
  .nav-menu > li > a { padding: 0 8px; font-size: 13px; }
  .nav-menu > li > a::after { left: 8px; right: 8px; }
}
@media (max-width: 992px) {
  .prod-grid, .adv-grid { grid-template-columns: repeat(3, 1fr); }
  .video-grid.cols-3 { grid-template-columns: repeat(2, 1fr); }
  .video-featured { grid-template-columns: 1.1fr 1fr; }
  .video-featured .txt { padding: 26px; }
  .footer .cols { grid-template-columns: 1fr 1fr; gap: 30px; }
  .section { padding: 60px 0; }
  .adv5-row { gap: 34px; padding: 34px 0; }
  .adv5-pic { padding: 22px; }
  .adv5-no { margin-bottom: 12px; }
  .adv5-no span { font-size: 32px; }
  .adv-bg { display: none; }
  .np-body { flex-direction: column; gap: 24px; }
  .np-collage { flex: none; width: 100%; aspect-ratio: 16/8.6; }
  .np-list li { flex: none; }
  .np-list li:first-child { border-top: 0; }
}
@media (max-width: 768px) {
  .topbar .wrap { height: auto; padding: 8px 0; flex-wrap: wrap; gap: 4px 16px; }
  .topbar a { margin-left: 0; margin-right: 16px; }
  .header .wrap { flex-wrap: wrap; gap: 14px; }
  .head-search { order: 3; flex: 1 1 100%; width: 100%; max-width: none; margin-left: 0; }
  .head-tel { margin-left: auto; }
  .head-tel .tel-num { font-size: 20px; }
  .logo img { height: 44px; }
  .banner { aspect-ratio: auto; height: 62vh; min-height: 360px; }
  .banner-machine { width: 240%; max-width: none; height: auto; left: 50%; top: 50%; transform: translate(-27%, -48.6%); opacity: .42; }
  .banner-slide::before { background: linear-gradient(180deg, rgba(4,32,78,.5) 0%, rgba(4,32,78,.22) 45%, rgba(4,32,78,.56) 100%); }
  .banner-cap { justify-content: center; text-align: center; }
  .cap-inner { align-items: center; padding-left: 0; padding-right: 0; }
  .banner-cap .cap-top { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }
  .banner-cap .hero-slogan { font-size: 11px; letter-spacing: 2px; padding-left: 0; white-space: normal; max-width: 100%; }
  .banner-cap .hero-slogan::before { display: none; }
  .banner-cap h1 { font-size: clamp(18px, 4.6vw, 24px); letter-spacing: 1px; margin-top: 12px; }
  .banner-cap p { font-size: 12px; max-width: 92%; line-height: 1.7; margin-top: 10px; }
  .banner-cap .hero-points { gap: 4px 16px; margin-top: 10px; justify-content: center; }
  .banner-cap .hero-points li { font-size: 12px; padding-left: 13px; padding-right: 0; }
  .banner-cap .hero-points li::before { left: 0; right: auto; }
  .banner-cap .hero-tag { font-size: 12px; padding: 4px 12px 5px; }
  .banner-cap .cta { margin-top: 16px; gap: 10px; justify-content: center; }
  .btn-glow, .btn-ghost { padding: 10px 22px; font-size: 13px; }
  .banner-dots { bottom: 14px; }
  .banner-arrow { display: none; }
  .nav-toggle { display: block; width: 100%; background: none; border: none; color: #fff; font-size: 15px; padding: 15px 0; text-align: left; cursor: pointer; font-weight: 600; }
  .nav-menu { display: none; flex-direction: column; }
  .nav-menu.open { display: flex; }
  .nav-menu > li > a { padding: 0 16px; line-height: 46px; border-top: 1px solid rgba(255,255,255,.1); }
  .nav-menu > li > a::after { display: none; }
  .nav-menu .dropdown { position: static; box-shadow: none; border-radius: 0; background: rgba(255,255,255,.05); }
  .nav-menu .dropdown a { color: rgba(255,255,255,.75); }
  .nav-menu li.open > .dropdown { display: block; }
  .prod-grid, .adv-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .sec-title { padding-top: 20px; }
  .sec-title .en { font-size: 38px; letter-spacing: 4px; top: 0; }
  .sec-title h2::before { display: none; }
  .adv-item { padding: 28px 18px 24px; }
  .adv-item::before { font-size: 38px; top: 10px; right: 12px; }
  .video-grid, .video-grid.cols-3 { grid-template-columns: 1fr; gap: 14px; }
  .stats .wrap { grid-template-columns: repeat(2, 1fr); }
  .stat-item { padding: 26px 8px; border-bottom: 1px solid rgba(255,255,255,.08); }
  .news-flex { grid-template-columns: 1fr; }
  .news-first { min-height: 0; aspect-ratio: 16/10; }
  .news-list li { flex: none; min-height: 48px; }
  .np-body { flex-direction: column; gap: 24px; }
  .np-collage { flex: none; width: 100%; aspect-ratio: 4/3; grid-template-columns: 58px 1fr; }
  .np-list li { flex: none; }
  .np-list li:first-child { border-top: 0; }
  .about-flex { flex-direction: column; gap: 40px; }
  .about-pic { flex: none; width: 100%; }
  .about-pic .exp-badge { right: 10px; }
  .about-pic::after { display: none; }
  .about-points { grid-template-columns: 1fr; }
  .page-flex { flex-direction: column; }
  .sidebar { flex: none; width: 100%; }
  .detail-head { flex-direction: column; }
  .detail-gallery { flex: none; width: 100%; max-width: 440px; }
  .news-rows .n-pic { flex-basis: 140px; height: 96px; }
  .msg-form .row { grid-template-columns: 1fr; }
  .floatbar { right: 8px; gap: 6px; }
  .floatbar .f-item { width: 48px; height: 48px; border-radius: 12px; gap: 1px; }
  .floatbar .f-item .f-ico { width: 19px; height: 19px; }
  .floatbar .f-item .f-txt { font-size: 10px; }
  .floatbar .f-pop { right: calc(100% + 8px); padding: 12px; }
  .floatbar .f-pop .pop-tel { font-size: 18px; }
  .floatbar .f-pop img { width: 120px; }
  .video-page .main-col { order: -1; }
  .video-featured { grid-template-columns: 1fr; }
  .video-featured .pic { min-height: 0; aspect-ratio: 16/9; }
  .video-featured .txt { padding: 24px 22px; }
  .vf-play { width: 66px; height: 66px; }
  .vf-play::after { border-width: 10px 0 10px 17px; }
  .video-cta { flex-direction: column; align-items: flex-start; padding: 26px; }
  .video-cta h3 { font-size: 18px; }
  .video-cta .vc-tel { text-align: left; }
  .cta-band .wrap { flex-direction: column; text-align: center; }
  .footer .cols { grid-template-columns: 1fr; gap: 24px; }
  .adv5-row { grid-template-columns: 1fr; gap: 20px; padding: 28px 0; }
  .adv5-row:nth-child(even) .adv5-txt { order: 1; }
  .adv5-row:nth-child(even) .adv5-pic { order: 2; }
  .adv5-txt { max-width: none; }
  .adv5-txt p { font-size: 14px; line-height: 1.85; }
  .adv5-pic { aspect-ratio: 16 / 10; padding: 16px; border-radius: 16px; }
  .adv5-pic::before { inset: 9px; border-radius: 10px; }
  .adv5-more { line-height: 2.2; }
  .adv5-more a { display: inline-block; margin: 0 6px; }
}