/* =========================================================
   金贝 / JINBEI · 小苏打国际站 设计系统
   来源：Ardot 画布「国际企业官网设计」  fileId 730685334795961
   设计令牌（与设计稿逐字节对齐）

   主要模块类名（与 views 对应）：
     .site-nav / .site-footer     layout 顶栏页脚
     .hero / .trust               首页首屏与信任条
     .section / .adv-card         通用区块与优势卡
     .product-card / .news-card   产品与新闻卡
     .page-hero / .error-hero     内页与 404 头图
     .inquiry / .faq-item         询盘与 FAQ
     .pd / .spec-table            产品详情
   静态资源 URL：theme_asset('css/style.css') → /theme-assets/css/style.css
   完整开发说明：见主题根目录 DEVELOPMENT.md
   ========================================================= */
:root{
  /* 品牌色 */
  --brand:        #0B4EA2;   /* 品牌蓝 */
  --brand-deep:   #014DB2;   /* Hero 渐变起 */
  --brand-dark:   #001645;   /* Hero 渐变止 / 深色页脚 */
  --brand-soft:   #F0F5FB;   /* 浅蓝底（标签/按钮浅色） */

  /* 中性 */
  --canvas:       #F8FAFC;   /* 浅画布背景 */
  --white:        #FFFFFF;
  --border:       #E3E8F0;
  --ink:          #0B1226;   /* 标题 */
  --text:         #475569;   /* 正文 */
  --muted:        #64748B;   /* 次级 */
  --muted-2:      #94A3B8;   /* 最弱 */

  /* 尺度 */
  --container:    1440px;
  --gutter:       48px;
  --radius:       14px;
  --radius-sm:    8px;
  --section-y:    80px;

  --shadow-card:  0 6px 16px rgba(2, 8, 23, .06);
  --shadow-nav:   0 2px 12px rgba(2, 8, 23, .06);

  --font-sans:    "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-display: "Montserrat", "Noto Sans SC", sans-serif;
}

*{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body{
  font-family:var(--font-sans);
  color:var(--text);
  background:var(--white);
  line-height:1.6;
  font-size:15px;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; cursor:pointer; border:none; background:none; }
ul{ list-style:none; }

/* ---------- 布局容器 ---------- */
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 var(--gutter);
}
.section{ padding:var(--section-y) 0; }
.section--canvas{ background:var(--canvas); }
.section--white{ background:var(--white); }

/* ---------- 区块标题 ---------- */
.eyebrow{
  font-size:13px; font-weight:700; color:var(--brand);
  letter-spacing:.04em; margin-bottom:12px;
}
.section-title{
  font-size:34px; font-weight:700; color:var(--ink);
  line-height:1.3; letter-spacing:-.01em;
}
.section-desc{
  font-size:16px; color:var(--muted); margin-top:12px; max-width:760px;
}
.section-head{ margin-bottom:40px; }
.section-head--row{
  display:flex; align-items:center; justify-content:space-between; gap:24px;
  margin-bottom:40px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex; align-items:center; gap:8px;
  font-size:15px; font-weight:600; line-height:1;
  padding:14px 26px; border-radius:var(--radius-sm);
  transition:.18s ease; white-space:nowrap;
}
.btn--primary{ background:var(--brand); color:#fff; }
.btn--primary:hover{ background:#093f86; transform:translateY(-1px); }
.btn--ghost{ background:rgba(255,255,255,.12); color:#fff; border:1px solid rgba(255,255,255,.35); }
.btn--ghost:hover{ background:rgba(255,255,255,.2); }
.btn--outline{ background:#fff; color:var(--brand); border:1px solid var(--border); }
.btn--outline:hover{ border-color:var(--brand); }
.btn--light{ background:var(--brand-soft); color:var(--brand); }
.btn--light:hover{ background:#e6eefa; }
.btn--block{ width:100%; justify-content:center; }

/* =========================================================
   导航栏（与设计稿逐字节一致，由 components.js 注入）
   ========================================================= */
.site-nav{
  position:sticky; top:0; z-index:100;
  background:var(--white);
  box-shadow:var(--shadow-nav);
}
.site-nav__inner{
  height:72px; display:flex; align-items:center; justify-content:space-between;
}
.brand{ display:flex; align-items:center; gap:12px; }
.brand__mark{
  width:36px; height:36px; border-radius:8px; background:var(--brand);
  display:flex; align-items:center; justify-content:center;
  color:#fff; font-family:var(--font-display); font-weight:700; font-size:20px; line-height:1;
}
.brand__text{ display:flex; flex-direction:column; gap:2px; line-height:1.1; }
.brand__word{ font-size:18px; font-weight:700; color:var(--ink); letter-spacing:.02em; }
.brand__sub{ font-size:10px; color:var(--muted); }
.nav-links{ display:flex; align-items:center; gap:32px; }
.nav-links a{
  font-size:14px; color:var(--text); font-weight:500; position:relative; padding:6px 0;
}
.nav-links a::after{
  content:""; position:absolute; left:0; bottom:0; height:2px; width:0;
  background:var(--brand); transition:.2s ease;
}
.nav-links a:hover::after, .nav-links a.is-active::after{ width:100%; }
.nav-links a.is-active{ color:var(--brand); font-weight:600; }
.nav-right{ display:flex; align-items:center; gap:18px; }
.lang-switch{ display:flex; align-items:center; gap:6px; font-size:13px; color:var(--muted); }
.lang-switch button{ font-size:13px; color:var(--muted); padding:2px 4px; }
.lang-switch button.is-on{ color:var(--brand); font-weight:600; }
.lang-switch span{ color:var(--border); }
.nav-toggle{ display:none; width:40px; height:40px; border-radius:8px; align-items:center; justify-content:center; }
.nav-toggle span{ display:block; width:20px; height:2px; background:var(--ink); position:relative; }
.nav-toggle span::before, .nav-toggle span::after{
  content:""; position:absolute; left:0; width:20px; height:2px; background:var(--ink);
}
.nav-toggle span::before{ top:-6px; } .nav-toggle span::after{ top:6px; }

/* 移动端抽屉 */
.mobile-menu{
  display:none; flex-direction:column; gap:4px;
  padding:8px var(--gutter) 20px; background:#fff; border-top:1px solid var(--border);
}
.mobile-menu a{ padding:12px 0; font-size:15px; border-bottom:1px solid var(--border); }
.mobile-menu .btn{ margin-top:12px; }

/* =========================================================
   Hero
   ========================================================= */
.hero{
  background:linear-gradient(135deg, var(--brand-deep) 0%, var(--brand-dark) 100%);
  color:#fff; overflow:hidden;
}
.hero__inner{
  display:grid; grid-template-columns:1.05fr .95fr; gap:48px; align-items:center;
  padding:88px 0 96px;
}
.hero__eyebrow{ color:#9DC1F0; font-size:13px; font-weight:700; letter-spacing:.06em; margin-bottom:18px; }
.hero__title{ font-size:46px; font-weight:700; line-height:1.2; letter-spacing:-.01em; }
.hero__title b{ color:#7FB2F2; }
.hero__sub{ font-size:17px; color:#C7D6EC; margin-top:20px; max-width:520px; }
.hero__actions{ display:flex; gap:14px; margin-top:32px; flex-wrap:wrap; }
.hero__stats{ display:flex; gap:36px; margin-top:40px; }
.hero__stat b{ display:block; font-size:28px; font-weight:700; font-family:var(--font-display); }
.hero__stat span{ font-size:13px; color:#9DB4D4; }
.hero__media{ position:relative; }
.hero__media img{
  width:100%; border-radius:18px; box-shadow:0 24px 60px rgba(0,0,0,.35);
}
.hero__badge{
  position:absolute; left:-18px; bottom:24px; background:#fff; color:var(--ink);
  border-radius:12px; padding:14px 18px; box-shadow:var(--shadow-card); font-size:13px;
}
.hero__badge b{ display:block; color:var(--brand); font-size:18px; }

/* =========================================================
   Trust 条
   ========================================================= */
.trust{ background:var(--white); border-bottom:1px solid var(--border); }
.trust__inner{ display:flex; align-items:center; justify-content:space-between; gap:24px; padding:28px 0; flex-wrap:wrap; }
.trust__label{ font-size:13px; color:var(--muted-2); font-weight:600; letter-spacing:.04em; }
.trust__logos{ display:flex; gap:40px; align-items:center; flex-wrap:wrap; }
.trust__logos span{ font-size:16px; font-weight:700; color:#AEB9C9; letter-spacing:.02em; }

/* =========================================================
   卡片网格通用
   ========================================================= */
.grid{ display:grid; gap:24px; }
.grid-4{ grid-template-columns:repeat(4,1fr); }
.grid-3{ grid-template-columns:repeat(3,1fr); }
.grid-2{ grid-template-columns:repeat(2,1fr); }

/* 优势卡 */
.adv-card{
  background:#fff; border:1px solid var(--border); border-radius:var(--radius);
  padding:28px; transition:.2s ease;
}
.adv-card:hover{ box-shadow:var(--shadow-card); transform:translateY(-3px); }
.adv-card__icon{
  width:48px; height:48px; border-radius:12px; background:var(--brand-soft);
  display:flex; align-items:center; justify-content:center; margin-bottom:18px; color:var(--brand);
}
.adv-card__icon svg{ width:24px; height:24px; }
.adv-card h3{ font-size:18px; color:var(--ink); margin-bottom:8px; }
.adv-card p{ font-size:14px; color:var(--muted); }

/* 产品卡 */
.product-card{
  background:#fff; border:1px solid var(--border); border-radius:var(--radius);
  overflow:hidden; transition:.2s ease; display:flex; flex-direction:column;
}
.product-card:hover{ box-shadow:var(--shadow-card); transform:translateY(-3px); }
.product-card__media{ aspect-ratio:4/3; background:var(--canvas); overflow:hidden; }
.product-card__media img{ width:100%; height:100%; object-fit:cover; }
.product-card__body{ padding:22px; }
.product-card__tag{
  display:inline-block; font-size:12px; font-weight:600; color:var(--brand);
  background:var(--brand-soft); padding:4px 10px; border-radius:999px; margin-bottom:12px;
}
.product-card h3{ font-size:18px; color:var(--ink); margin-bottom:8px; }
.product-card p{ font-size:14px; color:var(--muted); margin-bottom:16px; }
.product-card__more{ font-size:14px; font-weight:600; color:var(--brand); }

/* 公司展示 */
.company-body{ display:grid; grid-template-columns:460px 1fr; gap:48px; align-items:start; }
.company-intro p{ color:var(--text); font-size:15px; line-height:1.7; }
.company-points{ margin-top:24px; display:flex; flex-direction:column; gap:16px; }
.company-point{ display:flex; gap:12px; align-items:flex-start; font-size:15px; color:var(--text); }
.company-point svg{ flex:0 0 auto; margin-top:2px; }
.company-gallery{ display:grid; grid-template-columns:repeat(3,1fr); gap:16px; }
.gallery-item figcaption{ font-size:14px; color:var(--text); margin-top:10px; font-weight:500; }
.gallery-item__img{ border-radius:14px; overflow:hidden; aspect-ratio:4/3; background:var(--canvas); }
.gallery-item__img img{ width:100%; height:100%; object-fit:cover; }

/* 证书徽章 */
.cert-grid{ display:grid; grid-template-columns:repeat(6,1fr); gap:16px; }
.cert-card{
  background:#fff; border:1px solid var(--border); border-radius:var(--radius);
  padding:24px 20px; text-align:center; display:flex; flex-direction:column; align-items:center; gap:10px;
}
.cert-card__seal{ width:44px; height:44px; }
.cert-card h4{ font-size:15px; color:var(--ink); font-weight:700; }
.cert-card p{ font-size:12px; color:var(--muted); }

/* 新闻卡 */
.news-card{
  background:#fff; border:1px solid var(--border); border-radius:var(--radius); overflow:hidden;
  display:flex; flex-direction:column; transition:.2s ease;
}
.news-card:hover{ box-shadow:var(--shadow-card); transform:translateY(-3px); }
.news-card__thumb{ aspect-ratio:16/9; background:var(--canvas); overflow:hidden; }
.news-card__thumb img{ width:100%; height:100%; object-fit:cover; }
.news-card__body{ padding:20px; display:flex; flex-direction:column; gap:12px; flex:1; }
.news-tag{ align-self:flex-start; font-size:12px; font-weight:600; color:var(--brand); background:var(--brand-soft); padding:4px 10px; border-radius:999px; }
.news-date{ font-size:13px; color:var(--muted-2); }
.news-card h3{ font-size:17px; color:var(--ink); font-weight:700; line-height:1.5; }
.news-card p{ font-size:14px; color:var(--muted); }
.news-card__more{ font-size:14px; font-weight:600; color:var(--brand); margin-top:auto; }

/* Final CTA */
.cta-band{
  background:linear-gradient(135deg, var(--brand-deep), var(--brand-dark));
  color:#fff; border-radius:18px; padding:56px 48px;
  display:flex; align-items:center; justify-content:space-between; gap:32px; flex-wrap:wrap;
}
.cta-band h2{ font-size:30px; font-weight:700; }
.cta-band p{ color:#C7D6EC; margin-top:10px; font-size:15px; }

/* 底部询盘表单 */
.inquiry{ background:var(--brand-soft); }
.inquiry__grid{ display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center; }
.inquiry__form{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.field{ display:flex; flex-direction:column; gap:6px; }
.field.full{ grid-column:1/-1; }
.field label{ font-size:13px; font-weight:600; color:var(--ink); }
.field input, .field select, .field textarea{
  font-family:inherit; font-size:14px; padding:12px 14px; border:1px solid var(--border);
  border-radius:var(--radius-sm); background:#fff; color:var(--ink); width:100%;
}
.field textarea{ resize:vertical; min-height:96px; }
.field input:focus, .field select:focus, .field textarea:focus{ outline:none; border-color:var(--brand); }

/* =========================================================
   页脚（深色，与设计稿一致，由 components.js 注入）
   ========================================================= */
.site-footer{ background:var(--brand-dark); color:#C7D2E0; padding:64px 0 28px; }
.footer-top{ display:grid; grid-template-columns:1.6fr 1fr 1fr 1.2fr; gap:40px; }
.footer-brand__mark{ display:flex; align-items:center; gap:12px; margin-bottom:18px; }
.footer-brand__word{ font-size:20px; font-weight:700; color:#fff; font-family:var(--font-display); letter-spacing:.02em; }
.footer-brand__sub{ font-size:11px; color:#7E8DA6; }
.footer-brand p{ font-size:14px; color:#9FB0C9; max-width:320px; line-height:1.7; }
.footer-col h5{ font-size:14px; color:#fff; font-weight:600; margin-bottom:18px; }
.footer-col a{ display:block; font-size:14px; color:#9FB0C9; padding:7px 0; transition:.15s; }
.footer-col a:hover{ color:#fff; }
.footer-col .footer-contact{ color:#9FB0C9; font-size:14px; padding:7px 0; }
.footer-divider{ height:1px; background:rgba(255,255,255,.12); margin:40px 0 24px; }
.footer-bottom{ display:flex; align-items:center; justify-content:space-between; gap:16px; flex-wrap:wrap; }
.footer-bottom p{ font-size:13px; color:#7E8DA6; }
.footer-lang{ display:flex; gap:6px; font-size:13px; color:#7E8DA6; }
.footer-lang button.is-on{ color:#fff; font-weight:600; }

/* =========================================================
   子页面通用
   ========================================================= */
.page-hero{
  background:linear-gradient(135deg, var(--brand-deep), var(--brand-dark)); color:#fff;
  padding:64px 0 72px;
}
.page-hero h1{ font-size:40px; font-weight:700; }
.page-hero p{ color:#C7D6EC; margin-top:14px; font-size:16px; max-width:680px; }
.breadcrumb{ font-size:13px; color:#9DB4D4; margin-bottom:18px; }
.breadcrumb a:hover{ color:#fff; }
.sr-only{
  position:absolute; width:1px; height:1px; padding:0; margin:-1px;
  overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0;
}

/* 404 */
.error-hero__code{
  font-family:var(--font-display); font-size:88px; font-weight:700; line-height:1;
  letter-spacing:-.04em; color:rgba(255,255,255,.16); margin:0 0 8px;
}
.error-search{
  display:flex; gap:10px; max-width:560px; margin-top:28px;
}
.error-search input{
  flex:1; font-family:inherit; font-size:15px; padding:14px 16px;
  border:1px solid rgba(255,255,255,.28); border-radius:var(--radius-sm);
  background:rgba(255,255,255,.12); color:#fff;
}
.error-search input::placeholder{ color:#9DB4D4; }
.error-search input:focus{ outline:none; border-color:#fff; background:rgba(255,255,255,.18); }
.error-links{ display:grid; grid-template-columns:repeat(4,1fr); gap:16px; }
.error-link{
  display:flex; flex-direction:column; gap:8px; padding:24px;
  background:#fff; border:1px solid var(--border); border-radius:var(--radius);
  transition:.18s ease;
}
.error-link:hover{ border-color:var(--brand); box-shadow:var(--shadow-card); transform:translateY(-2px); }
.error-link b{ font-size:16px; color:var(--ink); }
.error-link span{ font-size:14px; color:var(--muted); line-height:1.6; }

/* 关于我们 */
.about-story{ display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center; }
.about-story img{ border-radius:18px; width:100%; }
.about-stats{ display:grid; grid-template-columns:repeat(4,1fr); gap:24px; margin-top:56px; }
.about-stat{ background:#fff; border:1px solid var(--border); border-radius:var(--radius); padding:28px; text-align:center; }
.about-stat b{ display:block; font-size:32px; font-weight:700; color:var(--brand); font-family:var(--font-display); }
.about-stat span{ font-size:14px; color:var(--muted); margin-top:8px; display:block; }

/* 产品详情 */
.pd{ display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:start; }
.pd__media{ border-radius:18px; overflow:hidden; background:var(--canvas); aspect-ratio:1/1; }
.pd__media img{ width:100%; height:100%; object-fit:cover; }
.pd__tags{ display:flex; gap:10px; margin-bottom:16px; flex-wrap:wrap; }
.pd__title{ font-size:34px; font-weight:700; color:var(--ink); }
.pd__lead{ font-size:16px; color:var(--muted); margin:16px 0 24px; }
.spec-table{ width:100%; border-collapse:collapse; margin:24px 0; }
.spec-table th, .spec-table td{ text-align:left; padding:12px 14px; border-bottom:1px solid var(--border); font-size:14px; }
.spec-table th{ color:var(--ink); font-weight:600; width:38%; background:var(--canvas); }
.spec-table td{ color:var(--text); }

/* 新闻中心 / 博客 列表 */
.list-item{
  display:grid; grid-template-columns:280px 1fr; gap:28px; padding:24px 0;
  border-bottom:1px solid var(--border); align-items:center;
}
.list-item__thumb{ border-radius:12px; overflow:hidden; aspect-ratio:16/10; background:var(--canvas); }
.list-item__thumb img{ width:100%; height:100%; object-fit:cover; }
.list-item h3{ font-size:19px; color:var(--ink); font-weight:700; margin-bottom:8px; }
.list-item p{ font-size:14px; color:var(--muted); }
.list-item .news-date{ margin-bottom:6px; }

/* FAQ */
.faq-item{ border:1px solid var(--border); border-radius:var(--radius); margin-bottom:14px; overflow:hidden; background:#fff; }
.faq-q{
  width:100%; text-align:left; padding:20px 24px; font-size:16px; font-weight:600; color:var(--ink);
  display:flex; justify-content:space-between; align-items:center; gap:16px;
}
.faq-q .ico{ transition:.2s; color:var(--brand); font-size:22px; line-height:1; }
.faq-item.open .faq-q .ico{ transform:rotate(45deg); }
.faq-a{ max-height:0; overflow:hidden; transition:max-height .25s ease; }
.faq-a__inner{ padding:0 24px 22px; font-size:15px; color:var(--muted); line-height:1.7; }
.faq-item.open .faq-a{ max-height:300px; }

/* 联系我们 */
.contact-grid{ display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:start; }
.quick-cards{ display:flex; flex-direction:column; gap:16px; margin-top:8px; }
.quick-card{
  display:flex; gap:14px; align-items:center; background:#fff; border:1px solid var(--border);
  border-radius:var(--radius); padding:18px 20px;
}
.quick-card__icon{ width:44px; height:44px; border-radius:10px; background:var(--brand-soft); color:var(--brand); display:flex; align-items:center; justify-content:center; flex:0 0 auto; }
.quick-card b{ display:block; font-size:14px; color:var(--ink); }
.quick-card span{ font-size:14px; color:var(--muted); }
.offices{ display:grid; grid-template-columns:repeat(3,1fr); gap:16px; margin-top:24px; }
.office{ background:#fff; border:1px solid var(--border); border-radius:var(--radius); padding:20px; }
.office b{ display:block; color:var(--ink); font-size:15px; margin-bottom:6px; }
.office span{ font-size:13px; color:var(--muted); }

/* 通用小标题区块 */
.subsection-title{ font-size:24px; font-weight:700; color:var(--ink); margin-bottom:24px; }

/* =========================================================
   响应式  <768px
   ========================================================= */
@media (max-width:1080px){
  .grid-4{ grid-template-columns:repeat(2,1fr); }
  .cert-grid{ grid-template-columns:repeat(3,1fr); }
  .footer-top{ grid-template-columns:1fr 1fr; }
  .error-links{ grid-template-columns:1fr 1fr; }
}
@media (max-width:768px){
  :root{ --gutter:20px; --section-y:56px; }
  .nav-links, .nav-right .lang-switch, .nav-right .btn{ display:none; }
  .nav-toggle{ display:flex; }
  .site-nav.open .mobile-menu{ display:flex; }

  .hero__inner{ grid-template-columns:1fr; padding:56px 0 64px; }
  .hero__title{ font-size:32px; }
  .hero__stats{ gap:24px; flex-wrap:wrap; }
  .section-title{ font-size:26px; }
  .section-head--row{ flex-direction:column; align-items:flex-start; gap:16px; }

  .grid-4, .grid-3, .grid-2{ grid-template-columns:1fr; }
  .cert-grid{ grid-template-columns:repeat(2,1fr); }
  .company-body{ grid-template-columns:1fr; gap:32px; }
  .company-gallery{ grid-template-columns:1fr 1fr; }
  .inquiry__grid{ grid-template-columns:1fr; gap:32px; }
  .inquiry__form{ grid-template-columns:1fr; }
  .cta-band{ padding:36px 24px; }
  .cta-band h2{ font-size:24px; }

  .footer-top{ grid-template-columns:1fr; gap:28px; }
  .footer-bottom{ flex-direction:column; align-items:flex-start; }

  .page-hero h1{ font-size:30px; }
  .error-hero__code{ font-size:56px; }
  .error-search{ flex-direction:column; }
  .error-links{ grid-template-columns:1fr; }
  .about-story{ grid-template-columns:1fr; gap:32px; }
  .about-stats{ grid-template-columns:1fr 1fr; }
  .pd{ grid-template-columns:1fr; gap:32px; }
  .list-item{ grid-template-columns:1fr; gap:14px; }
  .contact-grid{ grid-template-columns:1fr; gap:32px; }
  .offices{ grid-template-columns:1fr; }
}