/**
 * =============================================================================
 * assets/theme.css — 主题全站样式（新建主题优先改这里）
 * =============================================================================
 *
 * 源文件在主题包内；安装/启用/静态发布时同步到：
 *   public/assets/themes/{slug}/theme.css
 * 请勿只改 public 副本。
 *
 * 【建议改动顺序】
 *   1. :root 设计变量（色板、字体、间距、圆角）
 *   2. 布局组件（header / hero / section / card / footer）
 *   3. 页面专属（about / service / inquiry / search）
 *   4. 底部 @media 响应式断点
 *
 * 【class 约定（模板依赖，改名需同步改 PHP）】
 *   .site-header .main-nav .nav-toggle  — 导航；body.nav-open 展开移动菜单
 *   .hero / .page-hero                 — 首页 Hero / 内页页头
 *   .cards-3 .cards-4 .card            — 网格卡片
 *   .inquiry-*                         — 询价区块
 *   .filter-bar .filters               — 列表分类条
 *   .detail-grid .richtext             — 详情排版
 *   .search-form .search-result-card   — 搜索页
 *
 * 图标字体：模板使用 Material Symbols Outlined（在 head.php 引入）
 */

/* ---------- 设计令牌：换肤主要改此块 ---------- */
:root{
  --primary:#001e40;
  --primary-container:#003366;
  --on-primary:#fff;
  --on-primary-container:#799dd6;
  --secondary:#5f5e5e;
  --background:#f7fafc;
  --surface:#f7fafc;
  --surface-low:#f1f4f6;
  --surface-lowest:#fff;
  --outline:#c3c6d1;
  --text:#181c1e;
  --tertiary-fixed:#94f990;
  --on-tertiary-fixed-variant:#005313;
  --primary-fixed:#d5e3ff;
  --radius:4px;
  --container:1280px;
  --gutter:24px;
  --margin:clamp(20px,5vw,64px);
  --section:clamp(64px,10vw,120px);
  --font-display:"Hanken Grotesk",sans-serif;
  --font-body:Inter,sans-serif;
  --font-label:"JetBrains Mono",monospace;
}

/* ---------- 基础重置与容器 ---------- */
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font-body);background:var(--background);color:var(--text);line-height:1.6}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{width:min(100% - var(--margin)*2,var(--container));margin-inline:auto}

/* ---------- 顶栏导航（fixed 80px；内页 .page-main 需 padding-top 避让） ---------- */
.site-header{position:fixed;inset:0 0 auto;height:80px;z-index:50;background:rgba(247,250,252,.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--outline)}
.nav-inner{height:100%;width:min(100% - var(--margin)*2,var(--container));margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;font-family:var(--font-display);font-weight:700;color:var(--primary)}
.brand-logo{height:44px;width:auto;object-fit:contain}
.brand-text{font-size:20px}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;padding:8px;cursor:pointer}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--primary)}
.main-nav{display:flex;gap:32px;align-items:center}
.mobile-only{display:none}
.main-nav a{font-family:var(--font-body);font-size:16px;font-weight:500;letter-spacing:.02em;color:var(--secondary);padding:6px 0;border-bottom:2px solid transparent;transition:.2s;line-height:1.4}
.main-nav a:hover,.main-nav a.active{color:var(--primary);border-color:var(--primary);font-weight:600}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:var(--radius);border:1px solid transparent;font-family:var(--font-body);font-size:15px;font-weight:600;letter-spacing:.02em;cursor:pointer;transition:.2s}
.btn-primary{background:var(--primary);color:var(--on-primary)}
.btn-primary:hover{background:var(--primary-container)}
.btn-outline-light{border-color:#fff;color:#fff;background:transparent}
.btn-outline-light:hover{background:rgba(255,255,255,.1)}
.nav-cta{padding:11px 20px;font-size:15px}

/* ---------- 按钮 ---------- */
/* （.btn 规则紧邻上方导航区） */

/* ---------- 首页 Hero ---------- */
.hero{position:relative;min-height:90vh;display:flex;align-items:center;overflow:hidden}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center}
.hero-bg-fallback{background:linear-gradient(135deg,#001e40 0%,#003366 45%,#4a6fa5 100%)}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,30,64,.82),rgba(0,30,64,.15))}
.hero-content{position:relative;z-index:1;padding:120px 0 80px;max-width:720px}
.hero h1,.page-hero h1{font-family:var(--font-display);font-size:clamp(36px,5vw,56px);line-height:1.15;letter-spacing:-.02em;margin:0 0 20px;color:#fff}
.page-hero h1{color:var(--primary)}
.lead{font-size:18px;line-height:1.6;color:var(--secondary);max-width:560px}
.lead.light,.eyebrow.light{color:rgba(247,250,252,.9)}
.eyebrow{font-family:var(--font-label);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--primary);margin:0 0 12px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}

/* ---------- 通用区块 / 卡片网格 ---------- */
.section{padding:var(--section) 0}
.section.tint{background:var(--surface-low)}
.section-head{margin-bottom:48px}
.section-head.center{text-align:center}
.section-head.between{display:flex;justify-content:space-between;align-items:end;gap:24px}
.section-head h2{font-family:var(--font-display);font-size:32px;margin:0 0 8px;color:var(--primary)}
.section-desc{margin:0;color:var(--secondary);font-size:16px}
.section-head.center .rule{margin-left:auto;margin-right:auto}
.rule{width:48px;height:4px;background:var(--primary);margin:16px auto 0}
.cards-3,.cards-4{display:grid;gap:24px}
.cards-3{grid-template-columns:repeat(3,1fr)}
.cards-4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--surface-lowest);border:1px solid var(--outline);border-radius:var(--radius);padding:28px;transition:.25s ease}
.card:hover{transform:translateY(-4px);box-shadow:0 12px 28px rgba(0,51,102,.08)}
.card.product{padding:0;overflow:hidden;display:block}
.card .media{aspect-ratio:1;position:relative;background:#fff}
.card .media img{width:100%;height:100%;object-fit:contain;padding:24px;transition:.5s}
.card:hover .media img{transform:scale(1.05)}
.media-placeholder{width:100%;height:100%;min-height:220px;background:linear-gradient(135deg,#eef3f8,#d7dadc)}
.media-placeholder.tall{min-height:420px}
.card .body{padding:22px}
.card h3{font-family:var(--font-display);font-size:24px;margin:0 0 10px;color:var(--primary)}
.advantage{text-align:center}
.icon-circle{width:64px;height:64px;border-radius:50%;background:var(--primary-fixed);display:grid;place-items:center;margin:0 auto 18px;color:var(--primary)}
.chip{display:inline-block;background:var(--tertiary-fixed);color:var(--on-tertiary-fixed-variant);font-family:var(--font-label);font-size:12px;padding:4px 10px;border-radius:var(--radius)}
.chip.soft{background:rgba(213,227,255,.45);color:var(--primary-container)}
.card .chip{position:absolute;top:16px;right:16px}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-family:var(--font-label);font-size:12px;letter-spacing:.05em;text-transform:uppercase}
.page-main{padding-top:80px}
.footer-grid a{font-size:15px;line-height:1.7}

/* ---------- 内页页头（.dark / .has-bg / .compact 可组合） ---------- */
.page-hero{padding:72px 0 48px;border-bottom:1px solid var(--outline);background:var(--surface);position:relative;overflow:hidden}
.page-hero.dark{background:linear-gradient(135deg,#001e40,#003366);color:#fff}
.page-hero.dark .lead{color:rgba(255,255,255,.8)}
.page-hero.has-bg{min-height:360px;display:flex;align-items:end;padding-bottom:56px;border:0}
.page-hero.compact{min-height:280px}
.page-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(.55)}
.page-hero .relative{position:relative;z-index:1}
.media-card{padding:0;overflow:hidden;display:flex;flex-direction:column}
.media-cover{aspect-ratio:16/10;background-size:cover;background-position:center;background-color:#d7dadc}
.media-card .body{padding:22px;flex:1;display:flex;flex-direction:column;gap:8px}
.media-card .chip{position:static;align-self:flex-start}

/* ---------- 关于 / 服务 / 联系 ---------- */
.about-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:48px;align-items:start}
.about-aside img{width:100%;border:1px solid var(--outline);border-radius:var(--radius);margin-bottom:20px}
.stat-list{display:grid;gap:14px}
.stat-list div{background:#fff;border:1px solid var(--outline);padding:16px 18px;border-radius:var(--radius)}
.stat-list strong{display:block;font-family:var(--font-display);font-size:28px;color:var(--primary)}
.stat-list span{color:var(--secondary);font-size:14px}
.service-flow{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:none}
.service-flow-item{position:relative;background:#fff;border:1px solid var(--outline);border-radius:12px;padding:24px 20px;min-height:100%}
.flow-index{font-family:var(--font-display);font-size:28px;font-weight:700;color:var(--primary);line-height:1;margin-bottom:14px}
.service-flow-item h3{margin:0 0 10px;font-family:var(--font-display);font-size:20px;color:var(--primary)}
.service-flow-item p{margin:0;color:var(--secondary);font-size:15px;line-height:1.6}
.flow-connector{display:none}
.service-panels{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.service-card{background:#fff;border:1px solid var(--outline);border-radius:12px;padding:28px 24px;text-align:left;transition:.25s ease}
.service-card:hover{transform:translateY(-4px);box-shadow:0 12px 28px rgba(0,51,102,.08)}
.service-card .icon-circle{margin:0 0 18px}
.service-card h3{margin:0 0 10px;font-family:var(--font-display);font-size:22px;color:var(--primary)}
.service-card p{margin:0;color:var(--secondary);font-size:15px;line-height:1.65}
.service-detail{max-width:920px}
.service-richtext{background:#fff;border:1px solid var(--outline);border-radius:12px;padding:28px 32px;margin:0 0 24px}
.service-richtext p{font-size:16px;line-height:1.75}
.service-cta-bar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 24px;border-radius:12px;background:linear-gradient(135deg,#001e40,#003366);color:#fff}
.service-cta-bar strong{display:block;font-size:18px;margin-bottom:4px}
.service-cta-bar span{color:rgba(255,255,255,.78);font-size:14px}
.service-cta-bar .btn{background:#fff;color:var(--primary)}
.service-cta-bar .btn:hover{background:var(--primary-fixed)}
.contact-grid{max-width:960px}
.contact-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.contact-cards .card{display:grid;gap:8px}
.contact-cards .material-symbols-outlined{color:var(--primary);font-size:28px}
.footer-brand img{height:48px;width:auto;margin-bottom:12px;object-fit:contain}

/* ---------- 列表筛选条 / 详情排版 ---------- */
.filter-bar{position:sticky;top:80px;z-index:40;background:rgba(247,250,252,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--outline)}
.filters{display:flex;gap:28px;overflow:auto;padding:18px 0}
.filters a{font-family:var(--font-body);font-size:15px;font-weight:500;letter-spacing:.01em;color:var(--secondary);border-bottom:2px solid transparent;padding-bottom:8px;white-space:nowrap;line-height:1.4}
.filters a.active,.filters a:hover{color:var(--primary);border-color:var(--primary);font-weight:600}
.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.detail-media{border:1px solid var(--outline);background:#fff}
.narrow{max-width:860px}
.richtext{margin:24px 0}
.richtext p{margin:0 0 14px;color:var(--secondary)}

/* ---------- 询价表单（partials/inquiry.php） ---------- */
.inquiry-section{padding:var(--section) 0;background:linear-gradient(165deg,#f4f7fb 0%,#eef3f8 45%,#f7fafc 100%)}
.inquiry-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:56px;align-items:center}
.inquiry-intro h2{font-family:var(--font-display);font-size:clamp(28px,3vw,36px);color:var(--primary);margin:0 0 14px;line-height:1.25}
.inquiry-points{list-style:none;padding:0;margin:32px 0 0;display:grid;gap:14px}
.inquiry-points li{display:flex;align-items:center;gap:14px;padding:14px 16px;background:rgba(255,255,255,.8);border:1px solid var(--outline);border-radius:10px}
.inquiry-points .point-icon{width:42px;height:42px;border-radius:10px;background:var(--primary-fixed);color:var(--primary);display:grid;place-items:center;flex:0 0 auto}
.inquiry-points strong{display:block;color:var(--primary);font-size:15px;margin-bottom:2px}
.inquiry-points span:not(.material-symbols-outlined){color:var(--secondary);font-size:14px}
.inquiry-panel{background:#fff;border:1px solid var(--outline);border-radius:14px;padding:28px 28px 24px;box-shadow:0 18px 40px rgba(0,30,64,.08)}
.inquiry-panel-head{margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid var(--outline)}
.inquiry-panel-head h3{margin:0 0 6px;font-family:var(--font-display);font-size:22px;color:var(--primary)}
.inquiry-panel-head p{margin:0;color:var(--secondary);font-size:13px}
.inquiry-alert{border-radius:10px;padding:12px 14px;margin-bottom:16px;font-size:14px}
.inquiry-alert.ok{background:#e8f8e8;color:#005313;border:1px solid #b9e6c5}
.inquiry-alert.err{background:#ffdad6;color:#93000a;border:1px solid #ffb4ab}
.inquiry-form{display:grid;gap:16px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:grid;gap:8px;margin:0}
.field-label{font-family:var(--font-body);font-size:14px;font-weight:600;color:var(--primary)}
.inquiry-form input,.inquiry-form textarea,.inquiry-form select{
  width:100%;border:1px solid var(--outline);border-radius:10px;background:#f7fafc;
  padding:13px 14px;font:inherit;font-size:15px;color:var(--text);transition:.2s;resize:vertical;min-height:48px
}
.inquiry-form select{
  appearance:none;-webkit-appearance:none;-moz-appearance:none;cursor:pointer;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23001e40' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;background-size:16px;padding-right:40px
}
.inquiry-form select:invalid{color:#8a929c}
.inquiry-form select option{color:var(--text)}
.inquiry-form textarea{min-height:120px;line-height:1.55}
.inquiry-form input::placeholder,.inquiry-form textarea::placeholder{color:#8a929c}
.inquiry-form input:hover,.inquiry-form textarea:hover,.inquiry-form select:hover{border-color:#aeb8c4}
.inquiry-form input:focus,.inquiry-form textarea:focus,.inquiry-form select:focus{
  outline:none;border-color:var(--primary-container);background:#fff;
  box-shadow:0 0 0 4px rgba(0,51,102,.12)
}
.industry-other-field[hidden]{display:none !important}
.form-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:4px}
.form-tip{margin:0;font-size:13px;color:var(--secondary);max-width:260px;line-height:1.5}
.inquiry-submit{min-width:160px;padding:14px 22px;font-size:15px;border-radius:10px}
.hp{position:absolute;left:-9999px;opacity:0;height:0;width:0;overflow:hidden}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--outline);padding:64px 0 24px;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px}
.footer-grid h4,.footer-grid h5{margin:0 0 12px;color:var(--primary);font-family:var(--font-label);font-size:12px;letter-spacing:.05em;text-transform:uppercase}
.footer-grid a,.footer-grid p{display:block;color:var(--secondary);margin:0 0 8px}
.footer-bottom{margin-top:40px;padding-top:20px;border-top:1px solid var(--outline);color:var(--secondary);font-size:13px;display:flex;flex-wrap:wrap;gap:8px 20px;align-items:center;justify-content:space-between}
.footer-beian{display:inline-flex;flex-wrap:wrap;gap:8px 16px;align-items:center}
.footer-beian a{color:var(--secondary);text-decoration:none}
.footer-beian a:hover{color:var(--primary);text-decoration:underline}
.footer-beian-police{display:inline-flex;align-items:center;gap:6px}
.muted{color:var(--secondary)}

/* ---------- 语言切换 / 导航搜索 / 搜索结果页 ---------- */
.admin-preview-bar{
  position:sticky;top:0;z-index:1000;display:flex;flex-wrap:wrap;gap:10px 16px;align-items:center;
  padding:10px 20px;background:#1a2330;color:#f4d35e;font-size:13px;font-family:var(--font-label)
}
.admin-preview-bar strong{color:#fff;letter-spacing:.04em;text-transform:uppercase;font-size:11px}
.admin-preview-bar span{color:rgba(255,255,255,.78)}
.lang-switch{display:flex;gap:8px;align-items:center;font-size:13px;font-family:var(--font-label);letter-spacing:.04em;text-transform:uppercase}
.lang-switch a{color:var(--secondary);text-decoration:none}
.lang-switch a[aria-current="true"]{color:var(--primary)}
.nav-search{margin:0}
.nav-search input{
  width:132px;border:1px solid var(--outline);border-radius:999px;padding:8px 12px;
  font:inherit;font-size:13px;background:#fff;color:var(--primary)
}
.nav-search input:focus{outline:2px solid rgba(0,51,102,.2);border-color:var(--primary)}
.search-form{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0 8px;max-width:560px}
.search-form input[type=search]{
  flex:1;min-width:200px;border:1px solid var(--outline);border-radius:10px;padding:12px 14px;font:inherit
}
.search-results{display:grid;gap:12px}
.search-result-card{
  display:block;padding:16px 18px;border:1px solid var(--outline);border-radius:12px;
  background:#fff;text-decoration:none;color:inherit;transition:.15s
}
.search-result-card:hover{border-color:var(--primary);box-shadow:0 8px 20px rgba(0,30,64,.06)}
.search-result-card strong{display:block;margin-bottom:6px;color:var(--primary)}
.search-result-card p{margin:0 0 6px;color:var(--secondary);line-height:1.5;font-size:14px}
.search-result-card .muted{font-size:12px}

/* ---------- 响应式：平板 / 手机 ---------- */
@media (max-width:1024px){
  .cards-4,.service-panels,.contact-cards,.service-flow{grid-template-columns:repeat(2,1fr)}
  .cards-3,.detail-grid,.inquiry-grid,.footer-grid,.about-grid{grid-template-columns:1fr 1fr}
  .nav-toggle{display:flex}
  .main-nav{display:none;position:absolute;top:80px;left:0;right:0;background:rgba(247,250,252,.98);border-bottom:1px solid var(--outline);flex-direction:column;padding:18px var(--margin);gap:16px}
  body.nav-open .main-nav{display:flex}
  .main-nav a{font-size:17px;padding:8px 0}
  .filters a{font-size:15px}
  .mobile-only{display:inline}
  .nav-cta{display:none}
}
@media (max-width:720px){
  .cards-3,.cards-4,.detail-grid,.inquiry-grid,.footer-grid,.section-head.between,.about-grid,.service-panels,.contact-cards,.service-flow{grid-template-columns:1fr;display:grid}
  .field-row,.form-foot{grid-template-columns:1fr;display:grid}
  .form-foot,.service-cta-bar{align-items:stretch;flex-direction:column}
  .inquiry-submit,.service-cta-bar .btn{width:100%}
  .inquiry-panel{padding:22px 18px}
  .service-richtext{padding:20px}
  .hero{min-height:80vh}
  .brand-text{display:none}
}