/* ============================================
   高宇 GAOYU 智能锁 · B2B 询盘展示站
   品牌色提取自 LOGO：深蓝/蓝 + 龙 橙 + 黄点缀
   ============================================ */
:root {
  --navy: #0a3d7a;        /* header 深蓝 */
  --blue: #0f5aa8;        /* 主蓝 */
  --blue-2: #1e6fc0;      /* 亮蓝 */
  --blue-light: #e8f1fb;  /* 浅蓝底 */
  --orange: #f08300;      /* 龙橙 · CTA */
  --orange-d: #d97400;
  --yellow: #f5e955;      /* logo 黄 · 点缀 */
  --ink: #1f2937;
  --gray: #64748b;
  --line: #e3eaf3;
  --bg: #f5f8fc;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(10, 61, 122, .10);
  --shadow-h: 0 16px 40px rgba(10, 61, 122, .18);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink); background: #fff; line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
.container { width: min(1200px, 92%); margin: 0 auto; }

/* ---------- 顶部信息条 ---------- */
.topbar { background: #062a55; color: #cfe0f5; font-size: 13px; }
.topbar .container { display: flex; justify-content: space-between; align-items: center; height: 34px; }
.topbar .trust { display: flex; gap: 18px; align-items: center; }
.topbar .trust span { display: inline-flex; align-items: center; gap: 5px; }
.topbar svg { width: 14px; height: 14px; fill: var(--yellow); }
.topbar .hot { color: var(--yellow); font-weight: 700; letter-spacing: .5px; }

/* ---------- Header ---------- */
.header {
  position: sticky; top: 0; z-index: 100;
  background: linear-gradient(120deg, #0a3d7a 0%, #0d4a8f 60%, #0a3d7a 100%);
  box-shadow: 0 2px 14px rgba(4, 30, 60, .35);
}
.header .container { display: flex; align-items: center; gap: 26px; height: 76px; }
.brand { display: flex; align-items: center; flex-shrink: 0; }
.brand img {
  height: 56px; border-radius: 10px;
  box-shadow: 0 3px 12px rgba(0, 0, 0, .28);
}
.nav { display: flex; gap: 4px; flex: 1; justify-content: flex-end; }
.nav a {
  color: #dbe8f8; font-size: 15px; padding: 8px 13px; border-radius: 8px;
  transition: .2s; white-space: nowrap; font-weight: 500;
}
.nav a:hover { background: rgba(255, 255, 255, .12); color: #fff; }
.nav a.active { background: rgba(255, 255, 255, .16); color: #fff; font-weight: 700; }
.nav a.nav-cta { background: var(--orange); color: #fff; font-weight: 700; margin-left: 8px; }
.nav a.nav-cta:hover { background: var(--orange-d); }
.hamburger { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.hamburger span { display: block; width: 24px; height: 2.5px; background: #fff; margin: 5px 0; border-radius: 2px; transition: .25s; }

/* ---------- Banner 轮播 ---------- */
.banner { position: relative; height: 520px; overflow: hidden; background: #07305f; }
.slide {
  position: absolute; inset: 0; opacity: 0; transition: opacity .8s ease;
  display: flex; align-items: center;
  background:
    radial-gradient(900px 500px at 85% 20%, rgba(30, 111, 192, .55), transparent 60%),
    radial-gradient(700px 420px at 10% 90%, rgba(240, 131, 0, .18), transparent 55%),
    linear-gradient(115deg, #062a55 0%, #0a3d7a 55%, #0f5aa8 100%);
}
.slide.active { opacity: 1; }
.slide .container { display: grid; grid-template-columns: 1.15fr .85fr; align-items: center; gap: 30px; }
.slide .kicker {
  display: inline-flex; align-items: center; gap: 8px; color: var(--yellow);
  font-size: 14px; letter-spacing: 3px; font-weight: 600; margin-bottom: 18px;
}
.slide .kicker::before { content: ""; width: 34px; height: 2px; background: var(--yellow); }
.slide h1, .slide .slide-h2 { color: #fff; font-size: 46px; line-height: 1.25; letter-spacing: 1px; margin-bottom: 16px; }
.slide h1 em, .slide .slide-h2 em { font-style: normal; color: var(--yellow); }
.slide p { color: #b9d0ea; font-size: 17px; max-width: 520px; margin-bottom: 30px; }
.slide .actions { display: flex; gap: 14px; flex-wrap: wrap; }
.slide-art { display: flex; justify-content: center; }
.slide-art svg { width: min(380px, 100%); filter: drop-shadow(0 24px 44px rgba(0, 0, 0, .4)); animation: float 5s ease-in-out infinite; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }
.dots { position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%); display: flex; gap: 10px; z-index: 5; }
.dots button {
  width: 34px; height: 5px; border: 0; border-radius: 3px; cursor: pointer;
  background: rgba(255, 255, 255, .3); transition: .3s;
}
.dots button.on { background: var(--yellow); width: 52px; }

/* ---------- 信任背书条 ---------- */
.trustbar { background: #fff; border-bottom: 1px solid var(--line); }
.trustbar .container { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; padding: 22px 0; }
.trust-item { display: flex; align-items: center; gap: 12px; justify-content: center; }
.trust-item .ico {
  width: 46px; height: 46px; border-radius: 12px; flex-shrink: 0;
  background: var(--blue-light); display: grid; place-items: center;
}
.trust-item .ico svg { width: 24px; height: 24px; fill: var(--blue); }
.trust-item b { display: block; font-size: 15px; color: var(--ink); }
.trust-item span { font-size: 12.5px; color: var(--gray); }

/* ---------- 通用区块 ---------- */
.section { padding: 74px 0; }
.section.alt { background: var(--bg); }
.sec-head { text-align: center; margin-bottom: 44px; }
.sec-head .tag {
  display: inline-block; color: var(--orange); font-weight: 700; font-size: 14px;
  letter-spacing: 4px; margin-bottom: 8px;
}
.sec-head h2 { font-size: 32px; letter-spacing: 1px; }
.sec-head h2 i { font-style: normal; color: var(--blue); }
.sec-head p { color: var(--gray); margin-top: 10px; font-size: 15px; }
.sec-more { text-align: center; margin-top: 38px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 13px 30px;
  border-radius: 999px; font-weight: 700; font-size: 15px; transition: .25s; cursor: pointer; border: 0;
}
.btn-primary { background: var(--orange); color: #fff; box-shadow: 0 8px 22px rgba(240, 131, 0, .35); }
.btn-primary:hover { background: var(--orange-d); transform: translateY(-2px); }
.btn-ghost { border: 1.5px solid rgba(255, 255, 255, .65); color: #fff; }
.btn-ghost:hover { background: rgba(255, 255, 255, .14); }
.btn-blue { background: var(--blue); color: #fff; }
.btn-blue:hover { background: var(--navy); transform: translateY(-2px); }
.btn-line { border: 1.5px solid var(--blue); color: var(--blue); background: #fff; }
.btn-line:hover { background: var(--blue); color: #fff; }
.btn-sm { padding: 9px 20px; font-size: 13.5px; }

/* ---------- 产品卡 ---------- */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.p-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; transition: .3s; display: flex; flex-direction: column;
}
.p-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-h); border-color: transparent; }
.p-card .ph {
  height: 230px; display: grid; place-items: center; position: relative;
  background: linear-gradient(160deg, #f2f7fd 0%, #dfeafb 100%);
}
.p-card .ph svg { height: 200px; transition: .3s; }
.p-card:hover .ph svg { transform: scale(1.05); }
.p-card .badge {
  position: absolute; top: 12px; left: 12px; background: var(--orange); color: #fff;
  font-size: 12px; font-weight: 700; padding: 4px 12px; border-radius: 999px; letter-spacing: 1px;
}
.p-card .badge.new { background: #0e9f6e; }
.p-card .body { padding: 18px 20px 20px; flex: 1; display: flex; flex-direction: column; }
.p-card .model { color: var(--orange); font-weight: 800; font-size: 13px; letter-spacing: 1.5px; }
.p-card h3 { font-size: 17px; margin: 5px 0 8px; line-height: 1.4; }
.p-card .ways { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; flex: 1; }
.p-card .ways span {
  font-size: 12px; color: var(--blue); background: var(--blue-light);
  padding: 3px 10px; border-radius: 999px;
}
.p-card .ops { display: flex; gap: 10px; }

/* ---------- 分类专区 ---------- */
.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.cat-card {
  position: relative; border-radius: var(--radius); overflow: hidden; min-height: 190px;
  display: flex; align-items: flex-end; padding: 22px;
  background: linear-gradient(135deg, #0d4a8f, #0a3d7a);
  transition: .3s; border: 1px solid transparent;
}
.cat-card:nth-child(2n) { background: linear-gradient(135deg, #0f5aa8, #0a3d7a); }
.cat-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-h); }
.cat-card .art { position: absolute; right: -14px; top: 50%; transform: translateY(-50%); opacity: .5; transition: .3s; }
.cat-card .art svg { height: 150px; }
.cat-card:hover .art { opacity: .85; transform: translateY(-50%) scale(1.06) rotate(-4deg); }
.cat-card h3 { color: #fff; font-size: 19px; position: relative; }
.cat-card p { color: #a9c4e4; font-size: 13px; margin-top: 4px; position: relative; }
.cat-card .go {
  position: relative; color: var(--yellow); font-size: 13px; font-weight: 700;
  margin-top: 10px; display: inline-flex; align-items: center; gap: 6px;
}

/* ---------- 关于 / 数据 ---------- */
.about-wrap { display: grid; grid-template-columns: 1.05fr .95fr; gap: 46px; align-items: center; }
.about-wrap h2 { font-size: 30px; margin-bottom: 18px; }
.about-wrap h2 i { font-style: normal; color: var(--blue); }
.about-wrap p { color: var(--gray); margin-bottom: 14px; font-size: 15px; text-align: justify; }
.about-art { position: relative; }
.about-art .frame {
  border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-h);
  background: linear-gradient(150deg, #0d4a8f, #062a55); min-height: 340px;
  display: grid; place-items: center; padding: 34px;
}
.about-art .frame svg { width: 78%; }
.exp-badge {
  position: absolute; right: -18px; bottom: -20px; background: var(--orange); color: #fff;
  border-radius: 16px; padding: 18px 24px; box-shadow: 0 14px 30px rgba(240, 131, 0, .4); text-align: center;
}
.exp-badge b { font-size: 34px; display: block; line-height: 1.1; }
.exp-badge span { font-size: 13px; }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 54px; }
.stat {
  text-align: center; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 26px 12px; transition: .3s;
}
.stat:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.stat b { font-size: 34px; color: var(--blue); display: block; line-height: 1.15; }
.stat b i { font-style: normal; font-size: 18px; color: var(--orange); }
.stat span { color: var(--gray); font-size: 14px; }

/* ---------- CTA / 表单 ---------- */
.cta-band {
  background:
    radial-gradient(700px 300px at 90% 10%, rgba(240, 131, 0, .25), transparent 60%),
    linear-gradient(115deg, #062a55, #0f5aa8);
  border-radius: 22px; padding: 52px 56px; color: #fff;
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center;
}
.cta-band h2 { font-size: 28px; margin-bottom: 12px; }
.cta-band p { color: #b9d0ea; font-size: 15px; }
.cta-band .hotline { display: flex; align-items: center; gap: 14px; margin-top: 22px; }
.cta-band .hotline .ico {
  width: 52px; height: 52px; border-radius: 50%; background: rgba(255, 255, 255, .14);
  display: grid; place-items: center;
}
.cta-band .hotline svg { width: 24px; height: 24px; fill: var(--yellow); }
.cta-band .hotline b { font-size: 26px; color: var(--yellow); letter-spacing: 1px; }
.cta-band .hotline span { display: block; color: #b9d0ea; font-size: 13px; }
.quote-form { background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .18); border-radius: 18px; padding: 28px; backdrop-filter: blur(4px); }
.quote-form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.quote-form input, .quote-form textarea, .quote-form select {
  width: 100%; background: rgba(255, 255, 255, .95); border: 1px solid transparent;
  border-radius: 10px; padding: 12px 14px; font-size: 14px; font-family: inherit;
  margin-bottom: 14px; color: var(--ink); outline: none; transition: .2s;
}
.quote-form input:focus, .quote-form textarea:focus { border-color: var(--orange); box-shadow: 0 0 0 3px rgba(240, 131, 0, .2); }
.quote-form textarea { min-height: 88px; resize: vertical; }
.quote-form .submit { width: 100%; justify-content: center; }

/* ---------- 页脚 ---------- */
.footer { background: #062a55; color: #9fb8d8; margin-top: 74px; }
.footer .main { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1.2fr; gap: 40px; padding: 56px 0 42px; }
.footer h4 { color: #fff; font-size: 16px; margin-bottom: 18px; letter-spacing: 1px; }
.footer .f-brand img { height: 52px; border-radius: 8px; margin-bottom: 16px; }
.footer .f-brand p { font-size: 13.5px; line-height: 1.8; }
.footer .f-cert { display: flex; gap: 10px; margin-top: 16px; flex-wrap: wrap; }
.footer .f-cert span {
  font-size: 12px; border: 1px solid rgba(245, 233, 85, .5); color: var(--yellow);
  padding: 4px 12px; border-radius: 999px;
}
.footer li { margin-bottom: 11px; font-size: 14px; }
.footer li a { transition: .2s; }
.footer li a:hover { color: var(--yellow); }
.footer .contact li { display: flex; gap: 9px; align-items: flex-start; }
.footer .contact svg { width: 16px; height: 16px; fill: var(--yellow); flex-shrink: 0; margin-top: 4px; }
.footer .bottom { border-top: 1px solid rgba(255, 255, 255, .1); padding: 18px 0; font-size: 13px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }

/* ---------- 产品页筛选 ---------- */
.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 40px; }
.filter-bar button {
  padding: 10px 24px; border-radius: 999px; border: 1.5px solid var(--line);
  background: #fff; color: var(--gray); font-size: 14.5px; cursor: pointer; transition: .25s; font-family: inherit;
}
.filter-bar button:hover { border-color: var(--blue); color: var(--blue); }
.filter-bar button.on { background: var(--blue); border-color: var(--blue); color: #fff; font-weight: 700; }
.page-hero {
  background:
    radial-gradient(700px 320px at 80% 30%, rgba(30, 111, 192, .5), transparent 60%),
    linear-gradient(115deg, #062a55, #0a3d7a);
  padding: 64px 0; text-align: center;
}
.page-hero h1 { color: #fff; font-size: 36px; letter-spacing: 2px; }
.page-hero p { color: #a9c4e4; margin-top: 10px; }
.crumb { font-size: 13px; color: var(--gray); margin-top: 14px; }
.crumb a { color: #9fc3ec; }
.crumb a:hover { color: #fff; }

/* ---------- About / Contact 页 ---------- */
.prose h2 { font-size: 24px; margin: 34px 0 14px; color: var(--navy); }
.prose h2:first-child { margin-top: 0; }
.prose p { color: #475569; margin-bottom: 12px; text-align: justify; }
.adv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 30px; }
.adv-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 24px; transition: .3s; }
.adv-card:hover { box-shadow: var(--shadow-h); transform: translateY(-4px); }
.adv-card .ico { width: 52px; height: 52px; border-radius: 13px; background: var(--blue-light); display: grid; place-items: center; margin-bottom: 16px; }
.adv-card .ico svg { width: 26px; height: 26px; fill: var(--blue); }
.adv-card h3 { font-size: 17px; margin-bottom: 8px; }
.adv-card p { font-size: 14px; color: var(--gray); }
.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 40px; }
.contact-card { background: var(--navy); border-radius: 20px; color: #fff; padding: 38px 34px; }
.contact-card h3 { font-size: 20px; margin-bottom: 24px; }
.contact-card .item { display: flex; gap: 14px; margin-bottom: 22px; }
.contact-card .item .ico { width: 44px; height: 44px; border-radius: 12px; background: rgba(255, 255, 255, .12); display: grid; place-items: center; flex-shrink: 0; }
.contact-card .item svg { width: 20px; height: 20px; fill: var(--yellow); }
.contact-card .item b { display: block; font-size: 14px; color: #cfe0f5; margin-bottom: 2px; }
.contact-card .item span { font-size: 15.5px; }
.form-card { background: #fff; border: 1px solid var(--line); border-radius: 20px; padding: 34px; box-shadow: var(--shadow); }
.form-card h3 { font-size: 20px; margin-bottom: 6px; }
.form-card .sub { color: var(--gray); font-size: 14px; margin-bottom: 22px; }
.form-card.light input, .form-card.light textarea, .form-card.light select {
  background: var(--bg); border: 1px solid var(--line); color: var(--ink);
}
.form-card.light input:focus, .form-card.light textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(15, 90, 168, .15); }

/* ---------- Toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 40px; transform: translateX(-50%) translateY(30px);
  background: #0e9f6e; color: #fff; padding: 13px 26px; border-radius: 12px;
  font-size: 14.5px; box-shadow: 0 14px 34px rgba(0, 0, 0, .25); opacity: 0;
  transition: .35s; z-index: 999; pointer-events: none; max-width: 88%;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- 入场动画 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: .7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(3, 1fr); }
  .slide h1, .slide .slide-h2 { font-size: 38px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .footer .main { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 820px) {
  .hamburger { display: block; margin-left: auto; }
  .nav {
    display: none; position: absolute; top: 76px; left: 0; right: 0;
    background: #0a3d7a; flex-direction: column; padding: 14px 5% 20px; gap: 6px;
    box-shadow: 0 20px 30px rgba(0, 0, 0, .3);
  }
  .nav.open { display: flex; }
  .nav a { padding: 12px 14px; }
  .slide { height: auto; padding: 70px 0 90px; }
  .slide .container { grid-template-columns: 1fr; text-align: center; }
  .slide p { margin-inline: auto; }
  .slide .actions, .slide .kicker { justify-content: center; }
  .slide .actions { display: flex; }
  .slide-art { display: none; }
  .grid-3, .grid-4, .cat-grid, .adv-grid { grid-template-columns: repeat(2, 1fr); }
  .about-wrap, .cta-band, .contact-grid { grid-template-columns: 1fr; }
  .trustbar .container { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .trust-item { justify-content: flex-start; }
  .banner { height: auto; }
}
@media (max-width: 560px) {
  .grid-3, .grid-4, .cat-grid, .adv-grid { grid-template-columns: 1fr; }
  .quote-form .row { grid-template-columns: 1fr; }
  .slide h1, .slide .slide-h2 { font-size: 30px; }
  .sec-head h2 { font-size: 25px; }
  .cta-band { padding: 36px 24px; }
  .topbar .trust span:nth-child(2) { display: none; }
}

/* ---------- 产品详情页 ---------- */
.detail-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 48px; align-items: start; }
.detail-media {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px; display: flex; flex-direction: column; align-items: center; gap: 18px;
  position: sticky; top: 100px;
}
.detail-media > img, .detail-media > svg { width: 100%; max-width: 430px; border-radius: 10px; }
.detail-info h1 { font-size: 30px; margin: 8px 0 4px; line-height: 1.3; }
.feat-list { display: grid; grid-template-columns: 1fr 1fr; gap: 9px 18px; }
.feat-list li {
  font-size: 14px; color: #334155; padding-left: 22px; position: relative;
}
.feat-list li::before {
  content: "✓"; position: absolute; left: 0; top: 0; color: var(--orange);
  font-weight: 800;
}
.spec-table { width: 100%; border-collapse: collapse; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.spec-table td { padding: 12px 16px; font-size: 14.5px; border-bottom: 1px solid var(--line); }
.spec-table td:first-child { width: 160px; background: var(--blue-light); font-weight: 700; color: var(--navy); }
.spec-table td:last-child { color: #334155; }
.spec-table tr:last-child td { border-bottom: 0; }
.full-spec { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.full-spec img { width: 100%; display: block; }
.mini-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.mini-card {
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  text-align: center; transition: .25s; background: #fff; display: block;
}
.mini-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.mini-card img, .mini-card svg { width: 100%; height: 150px; object-fit: contain; padding: 10px; background: #fff; }
.mini-card span { display: block; padding: 10px; font-weight: 800; color: var(--blue); letter-spacing: 1px; border-top: 1px solid var(--line); }
/* 产品卡真实图片 */
.p-card .ph.with-img { background: #fff; }
.p-card .ph .ph-link { display: block; width: 100%; height: 100%; display: grid; place-items: center; }
.p-card .ph img { max-height: 200px; max-width: 78%; object-fit: contain; border-radius: 8px; transition: .3s; }
.p-card:hover .ph img { transform: scale(1.04); }
.p-card h3 a:hover { color: var(--blue); }
@media (max-width: 820px) {
  .detail-grid { grid-template-columns: 1fr; }
  .detail-media { position: static; }
  .mini-row { grid-template-columns: repeat(2, 1fr); }
  .feat-list { grid-template-columns: 1fr; }
}

/* ============================================
   多语言 · 语言切换器
   ============================================ */
.lang-switch {
  position: relative; display: inline-flex; align-items: center; gap: 6px;
  margin-left: 14px; padding: 7px 12px; border-radius: 8px; cursor: pointer;
  background: rgba(255, 255, 255, .12); color: #fff; font-size: 14px; font-weight: 600;
  white-space: nowrap; user-select: none; transition: .2s; flex-shrink: 0;
}
.lang-switch:hover { background: rgba(255, 255, 255, .22); }
.lang-switch .lang-globe { width: 17px; height: 17px; fill: var(--yellow); flex-shrink: 0; }
.lang-switch .lang-caret { width: 14px; height: 14px; fill: #cfe0f5; transition: .2s; }
.lang-switch.open .lang-caret { transform: rotate(180deg); }
.lang-menu {
  position: absolute; top: calc(100% + 8px); inset-inline-end: 0; min-width: 148px;
  background: #fff; border-radius: 10px; box-shadow: 0 14px 38px rgba(6, 30, 60, .28);
  padding: 6px; opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: .18s; z-index: 200; overflow: hidden;
}
.lang-menu.open { opacity: 1; visibility: visible; transform: translateY(0); }
.lang-menu a {
  display: block; padding: 9px 14px; border-radius: 7px; color: var(--ink);
  font-size: 14px; font-weight: 600; transition: .15s;
}
.lang-menu a:hover { background: var(--blue-light); color: var(--blue); }
.lang-menu a.on { background: var(--blue); color: #fff; }

/* ============================================
   RTL（阿拉伯语 / 希伯来语）镜像适配
   ============================================ */
body.rtl { direction: rtl; }
body.rtl .slide .kicker::before { order: 2; }
body.rtl .lang-switch { margin-left: 0; margin-right: 14px; }
body.rtl .nav a.nav-cta { margin-left: 0; margin-right: 8px; }
body.rtl .lang-menu { text-align: right; }
body.rtl .sec-more .btn,
body.rtl .slide .actions,
body.rtl .detail-info div { direction: rtl; }
body.rtl .spec-table td:first-child { text-align: right; }
body.rtl .spec-table td:last-child { text-align: right; }
body.rtl .sec-head,
body.rtl .about-wrap,
body.rtl .prose { text-align: right; }
body.rtl .adv-card,
body.rtl .trust-item,
body.rtl .cat-card,
body.rtl .contact-grid { text-align: right; }
body.rtl .p-card .body { text-align: right; }
body.rtl .p-card .ways { justify-content: flex-start; }
body.rtl .f-brand p { text-align: right; }
body.rtl .footer .main > div ul.contact li { flex-direction: row-reverse; }
body.rtl .home-rtl { text-align: right; }

/* 希伯来语 / 阿拉伯语字体优化 */
html[lang="he"] body { font-family: "Segoe UI", "Arial Hebrew", "Noto Sans Hebrew", "David", Arial, sans-serif; }
html[lang="ar"] body { font-family: "Segoe UI", "Noto Naskh Arabic", "Traditional Arabic", "Geeza Pro", Tahoma, Arial, sans-serif; }
html[lang="ar"] .slide h1, html[lang="he"] .slide h1,
html[lang="ar"] .slide .slide-h2, html[lang="he"] .slide .slide-h2 { letter-spacing: 0; }
html[lang="ar"] .sec-head h2, html[lang="he"] .sec-head h2 { letter-spacing: 0; }
html[lang="ar"] .brand img, html[lang="he"] .brand img { margin-inline-end: 0; }

/* 长语言名（希伯来语/阿拉伯语/土耳其语）导航适配 */
@media (max-width: 1100px) {
  .lang-switch { padding: 6px 9px; font-size: 13px; }
  .lang-switch .lang-globe { display: none; }
}
@media (max-width: 820px) {
  .lang-switch { margin-left: 8px; padding: 6px 9px; font-size: 12.5px; }
  .lang-switch .lang-current { max-width: 52px; overflow: hidden; text-overflow: ellipsis; }
  .lang-menu { inset-inline-end: 0; }
}

/* ============================================
   联系方式增强：电话 / 微信 / WhatsApp
   ============================================ */
:root { --wa: #25d366; --wa-d: #1eb457; }

/* 顶部条右侧联系方式 */
.topbar .container { gap: 16px; }
.top-contact { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; justify-content: flex-end; }
.tc-item {
  display: inline-flex; align-items: center; gap: 5px; color: #cfe0f5;
  font-size: 13px; font-weight: 600; transition: .2s; white-space: nowrap;
}
.tc-item:hover { color: #fff; }
.tc-item svg { width: 14px; height: 14px; fill: var(--yellow); flex-shrink: 0; }
.tc-item.tc-wa svg { fill: var(--wa); }
.tc-slogan { color: var(--yellow); font-weight: 700; letter-spacing: .5px; white-space: nowrap; }

/* 联系卡片里的可点击项 */
.contact-link { color: var(--blue); font-weight: 700; transition: .2s; word-break: break-all; }
.contact-link:hover { color: var(--orange); text-decoration: underline; }

/* WhatsApp / 电话 按钮 */
.btn .bico { width: 18px; height: 18px; fill: currentColor; flex-shrink: 0; }
.btn-wa { background: var(--wa); color: #fff; }
.btn-wa:hover { background: var(--wa-d); color: #fff; }
.btn-ghost-wa {
  background: transparent; color: var(--wa); border: 2px solid var(--wa);
}
.btn-ghost-wa:hover { background: var(--wa); color: #fff; }
.contact-actions { display: flex; flex-direction: column; gap: 10px; margin-top: 20px; }
.contact-actions .btn { justify-content: center; }
.cta-btns { display: flex; gap: 12px; margin-top: 20px; flex-wrap: wrap; }
.cta-link { color: #fff; }
.cta-link:hover { color: var(--yellow); }
.cta-band .hotline b a { color: #fff; }

/* ---------- 右下角悬浮联系按钮 ---------- */
.float-contact {
  position: fixed; inset-inline-end: 22px; bottom: 26px; z-index: 300;
  display: flex; flex-direction: column; gap: 12px;
}
.fc-btn {
  width: 54px; height: 54px; border-radius: 50%; display: grid; place-items: center;
  box-shadow: 0 8px 24px rgba(6, 30, 60, .28); transition: .25s; position: relative;
}
.fc-btn svg { width: 27px; height: 27px; fill: #fff; }
.fc-btn.fc-wa { background: var(--wa); }
.fc-btn.fc-wa:hover { background: var(--wa-d); transform: scale(1.08); }
.fc-btn.fc-tel { background: var(--blue); }
.fc-btn.fc-tel:hover { background: var(--navy); transform: scale(1.08); }
.fc-tip {
  position: absolute; inset-inline-end: calc(100% + 12px); top: 50%; transform: translateY(-50%);
  background: #0a3d7a; color: #fff; font-size: 13px; font-weight: 600; white-space: nowrap;
  padding: 7px 13px; border-radius: 8px; opacity: 0; visibility: hidden; transition: .2s;
  pointer-events: none;
}
.fc-tip::after {
  content: ""; position: absolute; inset-inline-start: 100%; top: 50%; transform: translateY(-50%);
  border: 6px solid transparent; border-inline-start-color: #0a3d7a;
}
.fc-btn:hover .fc-tip { opacity: 1; visibility: visible; }
body.rtl .fc-tip { inset-inline-end: auto; inset-inline-start: calc(100% + 12px); }
body.rtl .fc-tip::after { inset-inline-start: auto; inset-inline-end: 100%; border-inline-start-color: transparent; border-inline-end-color: #0a3d7a; }

@media (max-width: 820px) {
  .tc-slogan { display: none; }
  .topbar .container { height: auto; padding: 6px 0; }
  .float-contact { inset-inline-end: 14px; bottom: 16px; gap: 10px; }
  .fc-btn { width: 48px; height: 48px; }
  .fc-btn svg { width: 24px; height: 24px; }
  .fc-tip { display: none; }
}
@media (max-width: 560px) {
  .top-contact { gap: 10px; }
  .tc-item span { font-size: 12px; }
}