/* ============================================================
   青岛银达鸿业电子科技有限公司 —— 全站设计系统
   配色：白底 + 品牌绿（2026-10-06）
   ============================================================ */

:root {
  /* ---- 主色：品牌绿（2026-10-06 白底+绿方案；变量名沿用 --green-*）---- */
  --green-50:  #e8f5ec;
  --green-100: #cfe9d7;
  --green-200: #a4d4b2;
  --green-300: #6fbb8c;
  --green-400: #3fa268;
  --green-500: #237a45;   /* 主色：品牌绿（按钮/图标/描边），白字 5.33:1 */
  --green-600: #1b6136;   /* 功能色：深绿，白字 7.47:1 */
  --green-700: #164d2b;   /* 深绿文字/链接，白底 9.86:1 */
  --green-800: #103a21;

  /* ---- 辅助：青绿（渐变搭档/点缀，变量名沿用 --teal-*）---- */
  --teal-50:  #e3f2ec;
  --teal-100: #c6e5d7;
  --teal-200: #94ccaf;
  --teal-300: #5fb088;
  --teal-400: #358f68;
  --teal-500: #1f7355;    /* 点缀青绿：CTA 与高亮，白字 5.77:1 */
  --teal-600: #175c43;
  --teal-700: #124936;

  /* ---- 中性色（文字/边框，保持中性不与绿冲突）---- */
  --ink-900: #1b1e21;
  --ink-800: #23272b;
  --ink-700: #33383e;
  --ink-600: #4d5359;
  --ink-500: #6e747a;
  --ink-400: #969ba1;
  --ink-300: #c5c9cd;
  --ink-200: #e3e6e8;
  --ink-100: #f1f3f4;
  --ink-50:  #f5faf7;
  --white:   #ffffff;

  --danger: #c0392b;
  --warn: #d97706;

  /* ---- 语义 ---- */
  --brand: var(--green-500);
  --brand-dark: var(--green-700);
  --accent: var(--teal-500);
  --accent-dark: var(--teal-600);
  --bg: #ffffff;            /* 页面背景：纯白 */
  --bg-alt: #f5faf7;        /* 交替段背景：极浅绿 */
  --text: var(--ink-800);
  --text-muted: var(--ink-600);
  --border: var(--ink-200);

  /* ---- 尺寸 ---- */
  --maxw: 1200px;
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 3px rgba(27,30,33,.06), 0 1px 2px rgba(27,30,33,.04);
  --shadow: 0 4px 14px rgba(27,30,33,.08);
  --shadow-lg: 0 12px 32px rgba(27,30,33,.12);
  --header-h: 68px;
}

/* ============================================================ Reset ============================================================ */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; border: 0; }
a { color: inherit; text-decoration: none; transition: color .18s; }
a:hover { color: var(--brand-dark); }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, h5 { margin: 0; font-weight: 700; line-height: 1.35; color: var(--ink-900); }
p { margin: 0 0 1em; }
button { font: inherit; cursor: pointer; border: 0; background: none; }
table { border-collapse: collapse; width: 100%; }
input, textarea, select { font: inherit; }

/* SVG 图标统一 */
.icon { width: 1em; height: 1em; fill: currentColor; flex: none; vertical-align: -0.125em; }

/* ============================================================ Layout ============================================================ */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
.wrap-wide { max-width: 1360px; margin: 0 auto; padding: 0 20px; }
.section { padding: 64px 0; }
.section-alt { background: var(--bg-alt); }
.section-tight { padding: 44px 0; }

/* ============================================================ Header ============================================================ */
/* 第一行：信息栏 */
.topbar {
  background: var(--white);
  border-bottom: 1px solid var(--ink-100);
  color: var(--ink-700);
  font-size: 13px;
  line-height: 1;
}
.topbar-in {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; min-height: 52px; flex-wrap: wrap; padding: 8px 0;
}
.topbar-brand { display: flex; align-items: center; gap: 11px; min-width: 0; }
.topbar-logo { flex: none; display: inline-flex; align-items: center; }
img.topbar-logo { height: 20px; width: auto; max-width: 180px; display: block; }
img.footer-logo { height: 20px; width: auto; max-width: 180px; display: block; }
.topbar-name { font-size: 20px; font-weight: 700; color: var(--ink-900); letter-spacing: .3px; white-space: nowrap; }
.topbar-slogan {
  color: var(--ink-500); padding-left: 11px; margin-left: 3px;
  border-left: 1px solid var(--border); white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.topbar-right { display: flex; align-items: center; gap: 22px; }
.topbar-tel { display: flex; align-items: center; gap: 8px; }
.topbar-tel .icon { width: 15px; height: 15px; color: var(--brand); }
.topbar-tel b { font-size: 19px; color: var(--ink-900); letter-spacing: .5px; font-weight: 800; font-variant-numeric: tabular-nums; }
.topbar-hours { color: var(--ink-500); font-size: 12.5px; }

/* 第二行：主导航（通栏，独立成行） */
.mainnav {
  background: var(--green-100);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 100;
  box-shadow: 0 1px 0 rgba(27,30,33,.03);
}
.mainnav-in { display: flex; align-items: center; gap: 4px; min-height: var(--header-h); }
.nav-item { position: relative; }
.nav-link {
  display: flex; align-items: center; gap: 5px;
  padding: 0 17px; height: var(--header-h);
  font-size: 15.5px; font-weight: 600; color: var(--ink-700); white-space: nowrap;
  border-bottom: 3px solid transparent;
}
.nav-link:hover, .nav-link.active { color: var(--brand-dark); border-bottom-color: var(--brand); background: var(--green-50); border-radius: 6px 6px 0 0; }
.nav-link .caret { width: 9px; height: 9px; transition: transform .2s; }
.nav-item:hover .caret { transform: rotate(180deg); }
.nav-spacer { flex: 1; }
.nav-search {
  display: flex; align-items: center; gap: 8px; padding: 0 14px; height: 38px;
  background: var(--ink-50); border: 1px solid var(--border); border-radius: 20px;
  color: var(--ink-400); font-size: 14px; min-width: 170px;
}
.nav-search .icon { width: 15px; height: 15px; }

/* 下拉菜单 */
.dropdown {
  position: absolute; top: 100%; left: 0; min-width: 260px;
  background: var(--white); border: 1px solid var(--border);
  border-radius: 0 0 var(--radius) var(--radius);
  box-shadow: var(--shadow-lg); padding: 8px;
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: all .2s ease; z-index: 110;
}
.nav-item:hover .dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown a {
  display: block; padding: 9px 12px; border-radius: var(--radius-sm);
  font-size: 14.5px; color: var(--ink-700); font-weight: 500;
}
.dropdown a:hover { background: var(--green-50); color: var(--brand-dark); }
.dropdown a .dd-desc { display: block; font-size: 12.5px; color: var(--ink-500); font-weight: 400; margin-top: 2px; }
/* 无链接导航项：下拉菜单内的二级分类分组标题 */
.dropdown .dd-plain { display: block; padding: 10px 12px 5px; border-radius: var(--radius-sm); font-size: 12.5px; color: var(--ink-500); font-weight: 600; letter-spacing: .04em; cursor: default; }
.dropdown .dd-plain .dd-desc { display: block; font-size: 11.5px; color: var(--ink-400); font-weight: 400; margin-top: 1px; letter-spacing: 0; }
/* 分组标题后的第一项略收紧，形成视觉成组 */
.dropdown .dd-plain + a { margin-top: 1px; }
/* 三级链接：缩进显示在二级分组标题之下（应用平台 → 更多产品分组 → 专题页） */
.dropdown .dd-3 {
  display: block; padding: 6px 12px 6px 28px; border-radius: var(--radius-sm);
  font-size: 13.5px; color: var(--ink-600); font-weight: 400;
}
.dropdown .dd-3:hover { background: var(--green-50); color: var(--brand-dark); }
/* 二级分组整块与相邻一级项之间留出间隔 */
.dropdown .dd-plain:has(+ .dd-3) { margin-top: 6px; border-top: 1px solid var(--border); padding-top: 9px; }

/* 移动端菜单按钮 */
.nav-toggle { display: none; width: 42px; height: 42px; align-items: center; justify-content: center; color: var(--ink-700); }
.nav-toggle .icon { width: 22px; height: 22px; }

/* 移动抽屉 */
.drawer {
  display: none; position: fixed; inset: 0; z-index: 200;
  background: rgba(27,30,33,.45); opacity: 0; visibility: hidden; transition: .25s;
}
.drawer.open { opacity: 1; visibility: visible; }
.drawer-panel {
  position: absolute; top: 0; right: 0; bottom: 0; width: min(86vw, 340px);
  background: var(--white); transform: translateX(100%); transition: transform .28s ease;
  overflow-y: auto; padding: 16px 0 40px;
}
.drawer.open .drawer-panel { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; padding: 0 18px 14px; border-bottom: 1px solid var(--border); }
.drawer-head b { font-size: 16px; }
.drawer-close { width: 38px; height: 38px; display: flex; align-items: center; justify-content: center; color: var(--ink-600); }
.drawer-close .icon { width: 20px; height: 20px; }
.drawer-nav > li > a, .drawer-nav .dgroup {
  display: block; padding: 13px 18px; font-size: 15.5px; font-weight: 600; color: var(--ink-800);
  border-bottom: 1px solid var(--ink-100);
}
.drawer-sub { background: var(--ink-50); }
.drawer-sub a { display: block; padding: 11px 18px 11px 34px; font-size: 14.5px; color: var(--ink-600); border-bottom: 1px solid var(--ink-100); }
.drawer-sub .dgroup-plain { display: block; padding: 11px 18px 11px 34px; font-size: 12.5px; color: var(--ink-500); font-weight: 600; letter-spacing: .04em; border-bottom: 1px solid var(--ink-100); cursor: default; }
/* 三级链接：缩进显示在二级分组标题之下 */
.drawer-sub .dsub-3 { display: block; padding: 9px 18px 9px 50px; font-size: 14px; color: var(--ink-600); border-bottom: 1px solid var(--ink-100); }
.drawer-cta { margin: 18px; display: grid; gap: 10px; }

/* ============================================================ Buttons ============================================================ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 46px; padding: 0 26px; border-radius: var(--radius);
  font-size: 15.5px; font-weight: 600; text-align: center;
  transition: all .18s; white-space: nowrap; border: 2px solid transparent;
}
.btn .icon { width: 17px; height: 17px; }
.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-dark); border-color: var(--accent-dark); color: #fff; transform: translateY(-1px); box-shadow: 0 6px 18px rgba(35,122,69,.30); }
.btn-brand { background: var(--green-600); color: #fff; border-color: var(--green-600); }
.btn-brand:hover { background: var(--brand-dark); border-color: var(--brand-dark); color: #fff; transform: translateY(-1px); }
.btn-outline { background: transparent; color: var(--brand-dark); border-color: var(--green-400); }
.btn-outline:hover { background: var(--green-50); border-color: var(--brand); color: var(--brand-dark); }
/* 极简白主题：原深底专用半透明白字按钮 → 白底描边深字（hero / CTA / 页头次要按钮） */
.btn-ghost-light { background: var(--white); color: var(--brand-dark); border-color: var(--green-400); }
.btn-ghost-light:hover { background: var(--green-50); color: var(--brand-dark); border-color: var(--brand); }
.btn-sm { min-height: 38px; padding: 0 18px; font-size: 14px; }
.btn-block { width: 100%; }

/* ============================================================ Section head ============================================================ */
.sec-head { text-align: center; max-width: 760px; margin: 0 auto 38px; }
.sec-eyebrow {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 13px; font-weight: 700; letter-spacing: 1.2px; text-transform: uppercase;
  color: var(--accent-dark); background: var(--teal-50);
  padding: 5px 14px; border-radius: 20px; margin-bottom: 14px;
}
.sec-title { font-size: 30px; letter-spacing: -.3px; margin-bottom: 12px; }
.sec-sub { font-size: 15.5px; color: var(--text-muted); margin: 0; }
.sec-head.left { text-align: left; margin-left: 0; }
/* 分区标题加粗（产品中心 / 解决方案页专用）
   说明：h1~h5 默认已是 700，而微软雅黑在 Windows 上没有更重的字重，
   仅把 font-weight 提到 800 视觉上无变化，故叠加 -webkit-text-stroke 做真实描边加粗。 */
.sec-title.sec-strong { font-weight: 800; -webkit-text-stroke: .45px currentColor; letter-spacing: 0; }

/* ============================================================ Hero ============================================================ */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(1200px 500px at 82% -10%, rgba(35,122,69,.10), transparent 62%),
    linear-gradient(135deg, #ffffff 0%, #f5faf7 100%);
  color: var(--ink-800); padding: 74px 0 68px;
  border-bottom: 1px solid var(--border);
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(27,30,33,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(27,30,33,.05) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: radial-gradient(760px 380px at 74% 26%, #000 20%, transparent 78%);
}
.hero-in { position: relative; z-index: 2; display: grid; grid-template-columns: 1.06fr .94fr; gap: 52px; align-items: center; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--green-50); border: 1px solid var(--green-200);
  padding: 6px 15px; border-radius: 22px; font-size: 13.5px; font-weight: 600; margin-bottom: 20px;
}
.hero-badge .icon { width: 15px; height: 15px; color: var(--brand); }
.hero h1 { font-size: 43px; line-height: 1.24; color: var(--ink-900); letter-spacing: -.6px; margin-bottom: 18px; }
.hero h1 em { font-style: normal; color: var(--accent-dark); }
.hero-lead { font-size: 17px; color: var(--text-muted); margin-bottom: 14px; max-width: 560px; line-height: 1.8; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 30px; }
.hero-tag {
  font-size: 13px; color: var(--ink-700); background: var(--ink-50);
  border: 1px solid var(--border); padding: 4px 12px; border-radius: 6px;
}
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 24px; }
.hero-frees { display: flex; flex-wrap: wrap; gap: 8px 20px; font-size: 13.5px; color: var(--text-muted); }
.hero-frees span { display: flex; align-items: center; gap: 6px; }
.hero-frees .icon { width: 14px; height: 14px; color: var(--brand); }

/* Hero 右侧视觉 */
.hero-art { position: relative; }
.hero-art-card {
  background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 22px; box-shadow: var(--shadow-lg); color: var(--ink-800);
}
.hero-art-title { font-size: 14px; font-weight: 700; color: var(--ink-900); margin-bottom: 14px; display: flex; align-items: center; gap: 8px; }
.hero-art-title .icon { width: 16px; height: 16px; color: var(--green-600); }
.hero-art-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.hero-art-item {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none; color: inherit;
  border: 1px solid var(--border); border-radius: var(--radius); padding: 10px 12px; background: var(--ink-50);
  transition: border-color .15s ease, box-shadow .15s ease, transform .15s ease;
}
.hero-art-item:hover { border-color: var(--green-400); box-shadow: var(--shadow); transform: translateY(-2px); }
.hero-art-thumb {
  flex: 0 0 auto; width: 44px; height: 44px; border-radius: 9px; overflow: hidden;
  background: var(--white); border: 1px solid var(--border);
}
.hero-art-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.hero-art-thumb .icon { width: 20px; height: 20px; color: var(--green-600); display: block; margin: 11px auto; }
.hero-art-item .ht-text { min-width: 0; }
.hero-art-item b { display: block; font-size: 14px; color: var(--ink-800); line-height: 1.3; }
.hero-art-item small { display: block; font-size: 12px; color: var(--ink-500); margin-top: 3px; line-height: 1.35; }

/* ============================================================ Trust stats ============================================================ */
.stats {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 0;
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow);
  margin-top: -34px; position: relative; z-index: 5;
}
.stat { padding: 24px 18px; text-align: center; border-right: 1px solid var(--border); }
.stat:last-child { border-right: 0; }
.stat-num { font-size: 30px; font-weight: 800; color: var(--brand-dark); line-height: 1.1; font-variant-numeric: tabular-nums; }
.stat-num small { font-size: 16px; font-weight: 700; margin-left: 1px; }
.stat-label { font-size: 13px; color: var(--text-muted); margin-top: 6px; }

/* ============================================================ Cards ============================================================ */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

.card {
  background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg);
  overflow: hidden; transition: all .22s; display: flex; flex-direction: column;
}
.card:hover { border-color: var(--green-300); box-shadow: var(--shadow-lg); transform: translateY(-3px); }
.card-body { padding: 20px 22px 22px; flex: 1; display: flex; flex-direction: column; }
.card-title { font-size: 17px; margin-bottom: 8px; }
.card-title a:hover { color: var(--brand-dark); }
.card-desc { font-size: 14px; color: var(--text-muted); line-height: 1.72; margin-bottom: 14px; flex: 1; }
.card-meta { font-size: 12.5px; color: var(--ink-500); display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.card-foot { margin-top: auto; padding-top: 14px; border-top: 1px solid var(--ink-100); display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.card-more { font-size: 14px; font-weight: 600; color: var(--brand-dark); display: inline-flex; align-items: center; gap: 5px; }
.card-more .icon { width: 14px; height: 14px; }

/* 产品卡图片区（矢量示意图） */
.card-media {
  position: relative; aspect-ratio: 4/3; background: linear-gradient(140deg, var(--green-50), var(--teal-50));
  display: flex; align-items: center; justify-content: center; padding: 18px;
  border-bottom: 1px solid var(--border);
}
.card-media svg { width: 100%; height: 100%; max-height: 190px; }
.card-media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: 0; }
.card-badge {
  position: absolute; top: 12px; left: 12px; z-index: 2;
  background: var(--green-600); color: #fff; font-size: 12px; font-weight: 700;
  padding: 4px 10px; border-radius: 5px; letter-spacing: .3px;
}
.card-badge.teal { background: var(--accent); }
.card-price { font-size: 15px; font-weight: 800; color: var(--accent-dark); font-variant-numeric: tabular-nums; }
.card-price small { font-size: 12px; font-weight: 500; color: var(--ink-500); }

/* 图标特性卡 */
.icard { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px 22px; transition: all .22s; }
.icard:hover { border-color: var(--green-300); box-shadow: var(--shadow); transform: translateY(-2px); }
.icard-ico {
  width: 46px; height: 46px; border-radius: 12px; background: var(--green-50); color: var(--green-600);
  display: flex; align-items: center; justify-content: center; margin-bottom: 14px;
}
.icard-ico .icon { width: 23px; height: 23px; }
.icard.teal .icard-ico { background: var(--teal-50); color: var(--accent-dark); }
.icard h3 { font-size: 16.5px; margin-bottom: 8px; }
.icard p { font-size: 14px; color: var(--text-muted); margin: 0; line-height: 1.72; }

/* ============================================================ Category nav tiles ============================================================ */
.cat-tile {
  display: flex; gap: 16px; align-items: flex-start; padding: 20px;
  background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg);
  transition: all .22s;
}
.cat-tile:hover { border-color: var(--green-300); box-shadow: var(--shadow); transform: translateY(-2px); }
.cat-tile-ico {
  width: 64px; height: 64px; flex: none; border-radius: 12px;
  background: linear-gradient(135deg, var(--green-600), var(--teal-600)); color: #fff;
  display: flex; align-items: center; justify-content: center; overflow: hidden;
}
.cat-tile-ico .icon { width: 28px; height: 28px; }
.cat-tile-ico img { width: 100%; height: 100%; object-fit: cover; border-radius: 12px; display: block; }
.cat-tile h3 { font-size: 16.5px; margin-bottom: 6px; }
.cat-tile p { font-size: 13.5px; color: var(--text-muted); margin: 0 0 8px; line-height: 1.68; }
.cat-tile .cat-scene { font-size: 12.5px; color: var(--accent-dark); background: var(--teal-50); padding: 3px 9px; border-radius: 5px; display: inline-block; }

/* ============================================================ Process steps ============================================================ */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; counter-reset: s; }
.step {
  position: relative; background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px 18px 18px;
}
.step-n {
  width: 30px; height: 30px; border-radius: 8px; background: var(--green-50); color: var(--brand-dark);
  display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 14px; margin-bottom: 11px;
}
.step h4 { font-size: 15px; margin-bottom: 6px; }
.step p { font-size: 13px; color: var(--text-muted); margin: 0; line-height: 1.65; }

/* ============================================================ Case card ============================================================ */
.case-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; transition: all .22s; display: flex; flex-direction: column; }
.case-card:hover { border-color: var(--green-300); box-shadow: var(--shadow-lg); transform: translateY(-3px); }
.case-media { aspect-ratio: 16/9; background: linear-gradient(135deg, var(--green-600), var(--teal-600)); display: flex; align-items: center; justify-content: center; position: relative; }
.case-media svg { width: 62%; height: 62%; opacity: .95; }
.case-ind { position: absolute; top: 12px; left: 12px; background: rgba(255,255,255,.94); color: var(--brand-dark); font-size: 12px; font-weight: 700; padding: 4px 10px; border-radius: 5px; }
.case-body { padding: 18px 20px 20px; flex: 1; display: flex; flex-direction: column; }
.case-body h3 { font-size: 16px; margin-bottom: 8px; line-height: 1.5; }
.case-body p { font-size: 13.5px; color: var(--text-muted); margin: 0 0 12px; flex: 1; line-height: 1.7; }
.taglist { display: flex; flex-wrap: wrap; gap: 6px; }
.tag { font-size: 12px; color: var(--ink-600); background: var(--ink-100); padding: 3px 9px; border-radius: 5px; }
.tag.teal { background: var(--teal-50); color: var(--teal-700); }

/* ============================================================ FAQ ============================================================ */
.faq-list { max-width: 880px; margin: 0 auto; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius); background: var(--white); margin-bottom: 12px; overflow: hidden; }
.faq-item[open] { border-color: var(--green-300); box-shadow: var(--shadow-sm); }
.faq-q {
  display: flex; align-items: flex-start; gap: 12px; padding: 17px 20px;
  font-size: 16px; font-weight: 600; color: var(--ink-800); cursor: pointer; list-style: none;
}
.faq-q::-webkit-details-marker { display: none; }
.faq-q .qmark {
  width: 24px; height: 24px; flex: none; border-radius: 6px; background: var(--green-50); color: var(--brand-dark);
  display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 800; margin-top: 1px;
}
.faq-q .chev { margin-left: auto; width: 18px; height: 18px; color: var(--ink-400); flex: none; margin-top: 3px; transition: transform .22s; }
.faq-item[open] .faq-q .chev { transform: rotate(180deg); }
.faq-a { padding: 0 20px 20px 56px; font-size: 14.5px; color: var(--text-muted); line-height: 1.85; }
.faq-a p { margin: 0 0 .8em; }
.faq-a p:last-child { margin: 0; }

/* ============================================================ CTA band ============================================================ */
.cta-band {
  background: linear-gradient(135deg, #f5faf7 0%, #eff4ef 100%);
  border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 40px 42px; color: var(--ink-800);
  display: grid; grid-template-columns: 1.15fr .85fr; gap: 40px; align-items: center;
  position: relative; overflow: hidden;
}
.cta-band::after {
  content: ""; position: absolute; right: -60px; top: -60px; width: 300px; height: 300px;
  border-radius: 50%; background: rgba(35,122,69,.07);
}
.cta-band h2 { color: var(--ink-900); font-size: 26px; margin-bottom: 12px; position: relative; z-index: 2; }
.cta-benefits { display: grid; gap: 9px; position: relative; z-index: 2; }
.cta-benefits li { display: flex; align-items: flex-start; gap: 9px; font-size: 14.5px; color: var(--text-muted); }
.cta-benefits .icon { width: 16px; height: 16px; color: var(--accent-dark); margin-top: 4px; flex: none; }
.cta-form { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; position: relative; z-index: 2; }
.cta-form h3 { font-size: 16px; margin-bottom: 4px; color: var(--ink-900); }
.cta-form .form-tip { font-size: 12.5px; color: var(--ink-500); margin-bottom: 14px; }
.cta-tel { display: flex; flex-direction: column; gap: 2px; margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--ink-100); }
.cta-tel span { font-size: 12.5px; color: var(--ink-500); }
.cta-tel b { font-size: 24px; color: var(--accent-dark); font-weight: 800; letter-spacing: .5px; font-variant-numeric: tabular-nums; }

/* ============================================================ Forms ============================================================ */
.field { margin-bottom: 12px; }
.field label { display: block; font-size: 13px; font-weight: 600; color: var(--ink-700); margin-bottom: 5px; }
.field label .req { color: var(--danger); margin-left: 2px; }
.field input, .field textarea, .field select {
  width: 100%; padding: 10px 13px; border: 1px solid var(--border); border-radius: var(--radius-sm);
  font-size: 14.5px; color: var(--ink-800); background: var(--white); transition: border-color .18s, box-shadow .18s;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px rgba(35,122,69,.22);
}
.field textarea { resize: vertical; min-height: 84px; }
.form-note { font-size: 12px; color: var(--ink-500); margin-top: 9px; line-height: 1.6; }
.form-ok { background: var(--green-50); border: 1px solid var(--green-200); color: var(--brand-dark); border-radius: var(--radius-sm); padding: 11px 14px; font-size: 13.5px; margin-bottom: 12px; display: none; }
.form-ok.show { display: block; }

/* ============================================================ Breadcrumb ============================================================ */
.crumb { font-size: 13.5px; color: var(--ink-500); padding: 16px 0; display: flex; align-items: center; gap: 7px; flex-wrap: wrap; }
.crumb a:hover { color: var(--brand-dark); }
.crumb .sep { color: var(--ink-300); }
.crumb .cur { color: var(--ink-700); font-weight: 500; }

/* ============================================================ Page head ============================================================ */
.page-head { background: linear-gradient(135deg, #ffffff 0%, #f5faf7 100%); color: var(--ink-800); border-bottom: 1px solid var(--border); padding: 46px 0 42px; position: relative; overflow: hidden; }
.page-head::after { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(27,30,33,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(27,30,33,.045) 1px, transparent 1px); background-size: 48px 48px; mask-image: radial-gradient(700px 300px at 70% 40%, #000 10%, transparent 80%); }
.page-head-in { position: relative; z-index: 2; }
.page-head h1 { color: var(--ink-900); font-size: 32px; margin-bottom: 10px; letter-spacing: -.4px; }
.page-head p { color: var(--text-muted); font-size: 15.5px; margin: 0; max-width: 780px; }
.page-head .crumb { color: var(--ink-500); padding: 0 0 12px; }
.page-head .crumb a { color: var(--ink-600); }
.page-head .crumb .sep { color: var(--ink-300); }
.page-head .crumb .cur { color: var(--ink-900); }

/* ============================================================ Detail page ============================================================ */
.detail-grid { display: grid; grid-template-columns: 1fr 340px; gap: 40px; align-items: start; }
.prose h2 { font-size: 22px; margin: 34px 0 14px; padding-left: 14px; border-left: 4px solid var(--brand); }
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-size: 17.5px; margin: 24px 0 10px; }
.prose p { font-size: 15.5px; color: var(--ink-700); line-height: 1.9; margin-bottom: 14px; }
.prose ul { margin: 0 0 16px; padding-left: 0; }
.prose ul li { position: relative; padding-left: 24px; margin-bottom: 9px; font-size: 15px; color: var(--ink-700); line-height: 1.8; }
.prose ul li::before { content: ""; position: absolute; left: 6px; top: 11px; width: 7px; height: 7px; border-radius: 2px; background: var(--brand); }
.prose ul.check li::before { content: ""; left: 2px; top: 6px; width: 14px; height: 14px; border-radius: 4px; background: var(--green-100); box-shadow: inset 0 0 0 2px var(--brand); }

.hl-box { background: var(--green-50); border: 1px solid var(--green-200); border-radius: var(--radius); padding: 20px 22px; margin: 22px 0; }
.hl-box h3 { font-size: 16px; margin-bottom: 10px; color: var(--brand-dark); display: flex; align-items: center; gap: 8px; }
.hl-box h3 .icon { width: 17px; height: 17px; }
.hl-box p:last-child, .hl-box ul:last-child { margin-bottom: 0; }
/* 方案详情页富文本配图：等比缩放、居中、不溢出正文宽度 */
.sol-fig { margin: 20px 0 24px; text-align: center; }
.sol-fig img { max-width: 100%; height: auto; border-radius: 10px; box-shadow: 0 6px 20px rgba(0,0,0,.08); }
.sol-fig figcaption { margin-top: 10px; font-size: 13.5px; line-height: 1.7; color: var(--ink-600); }
/* 富文本图片栅格：识别方式 / 移动端功能 / 终端介绍（自适应列，不拉伸小图） */
.fig-grid, .term-grid { display: grid; gap: 16px; margin: 18px 0 24px; }
.fig-grid { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.term-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 14px; }
.fig-grid figure, .term-grid figure {
  margin: 0; padding: 14px 10px; text-align: center;
  background: #fff; border: 1px solid var(--ink-300); border-radius: 10px;
}
.fig-grid img { max-width: 100%; height: auto; border-radius: 8px; }
.term-grid img { max-width: 100%; max-height: 150px; object-fit: contain; border-radius: 8px; }
.fig-grid figcaption, .term-grid figcaption {
  margin-top: 10px; font-size: 13.5px; line-height: 1.65; color: var(--ink-600);
}

/* 侧栏 */
.side { position: sticky; top: calc(var(--header-h) + 20px); display: grid; gap: 20px; }
.side-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 20px; }
.side-card h3 { font-size: 16px; margin-bottom: 14px; padding-bottom: 12px; border-bottom: 1px solid var(--ink-100); }
.side-nav a { display: block; padding: 9px 12px; border-radius: var(--radius-sm); font-size: 14.5px; color: var(--ink-700); border-left: 3px solid transparent; }
.side-nav a:hover { background: var(--green-50); color: var(--brand-dark); }
.side-nav a.active { background: var(--green-50); color: var(--brand-dark); font-weight: 600; border-left-color: var(--brand); }
.side-cta { background: linear-gradient(150deg, #f5faf7, #eff4ef); color: var(--ink-800); border: 1px solid var(--border); }
.side-cta h3 { color: var(--ink-900); border-bottom-color: var(--border); }
.side-cta p { font-size: 13.5px; color: var(--text-muted); margin-bottom: 14px; }
.side-cta .btn { width: 100%; margin-bottom: 8px; }
.side-cta-tel { text-align: center; margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--border); }
.side-cta-tel span { font-size: 12.5px; color: var(--ink-500); display: block; }
.side-cta-tel b { font-size: 21px; color: var(--ink-900); font-weight: 800; }

/* 规格表 */
.spec-table { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; margin: 18px 0; }
.spec-table tr { border-bottom: 1px solid var(--ink-100); }
.spec-table tr:last-child { border-bottom: 0; }
.spec-table tr:nth-child(even) { background: var(--ink-50); }
.spec-table th { text-align: left; width: 130px; padding: 12px 16px; font-size: 14px; font-weight: 600; color: var(--ink-700); vertical-align: top; }
.spec-table td { padding: 12px 16px; font-size: 14.5px; color: var(--ink-700); }
.spec-table tr.spec-group { background: var(--green-50) !important; }
.spec-table tr.spec-group th {
  width: auto; font-size: 13px; font-weight: 800; letter-spacing: .04em;
  color: var(--brand); padding: 9px 16px; border-left: 3px solid var(--brand);
}

/* 详情图区 */
.detail-media {
  aspect-ratio: 16/9; background: linear-gradient(140deg, var(--green-50), var(--teal-50));
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  display: flex; align-items: center; justify-content: center; padding: 30px; margin-bottom: 26px;
}
.detail-media svg { width: auto; height: 100%; max-height: 300px; }
.detail-media img { max-width: 100%; max-height: 100%; width: auto; height: auto; object-fit: contain; }

/* 产品图片画廊 */
.pd-gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 10px; margin: -8px 0 26px; }
.pd-gallery a { display: block; aspect-ratio: 1/1; border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; background: var(--white); }
.pd-gallery a:hover { border-color: var(--brand); }
.pd-gallery img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s; }
.pd-gallery a:hover img { transform: scale(1.06); }
.pd-points p { margin: 0 0 11px; font-size: 15px; line-height: 1.85; color: var(--ink-700); }
.pd-detail-img { margin: 4px 0 26px; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; background: var(--white); }
.pd-detail-img img { display: block; width: 100%; height: auto; }
.pd-dim-img { margin: 4px 0 14px; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; background: var(--white); text-align: center; }
.pd-dim-img img { display: block; width: 100%; height: auto; }

/* ============================================================ Pagination ============================================================ */
.pager { display: flex; justify-content: center; align-items: center; gap: 6px; margin-top: 36px; flex-wrap: wrap; }
.pager a, .pager span {
  min-width: 40px; height: 40px; padding: 0 13px; display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--border); border-radius: var(--radius-sm); font-size: 14.5px; color: var(--ink-700); background: var(--white);
}
.pager a:hover { border-color: var(--brand); color: var(--brand-dark); background: var(--green-50); }
.pager .cur { background: var(--green-600); border-color: var(--green-600); color: #fff; font-weight: 700; }
.pager .dis { color: var(--ink-300); background: var(--ink-50); }

/* ============================================================ Filter tabs ============================================================ */
.tabs { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 26px; }
.tabs a, .tabs button {
  padding: 8px 18px; border: 1px solid var(--border); border-radius: 22px;
  font-size: 14.5px; color: var(--ink-700); background: var(--white); font-weight: 500;
}
.tabs a:hover, .tabs button:hover { border-color: var(--green-300); color: var(--brand-dark); }
.tabs .on { background: var(--green-600); border-color: var(--green-600); color: #fff; font-weight: 600; }

/* ============================================================ Download list ============================================================ */
.dl-item { display: flex; align-items: center; gap: 16px; padding: 18px 20px; background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 12px; transition: all .2s; }
.dl-item:hover { border-color: var(--green-300); box-shadow: var(--shadow-sm); }
.dl-ico { width: 46px; height: 46px; flex: none; border-radius: 11px; background: var(--green-50); color: var(--green-600); display: flex; align-items: center; justify-content: center; }
.dl-ico .icon { width: 23px; height: 23px; }
.dl-body { flex: 1; min-width: 0; }
.dl-body h3 { font-size: 15.5px; margin-bottom: 4px; }
.dl-body p { font-size: 13.5px; color: var(--text-muted); margin: 0; }
.dl-meta { font-size: 12.5px; color: var(--ink-400); white-space: nowrap; }

/* ============================================================ News ============================================================ */
.news-item { display: grid; grid-template-columns: 150px 1fr; gap: 22px; padding: 22px 0; border-bottom: 1px solid var(--border); }
.news-date { text-align: center; background: var(--ink-50); border-radius: var(--radius); padding: 12px; align-self: start; }
.news-date b { display: block; font-size: 22px; color: var(--brand-dark); font-weight: 800; line-height: 1.1; }
.news-date span { font-size: 12.5px; color: var(--ink-500); }
.news-body h3 { font-size: 17.5px; margin-bottom: 8px; }
.news-body h3 a:hover { color: var(--brand-dark); }
.news-body p { font-size: 14.5px; color: var(--text-muted); margin: 0 0 10px; line-height: 1.75; }

/* ============================================================ Contact ============================================================ */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.contact-list { display: grid; gap: 18px; }
.contact-item { display: flex; gap: 14px; align-items: flex-start; }
.contact-item .ci-ico { width: 42px; height: 42px; flex: none; border-radius: 11px; background: var(--green-50); color: var(--green-600); display: flex; align-items: center; justify-content: center; }
.contact-item .ci-ico .icon { width: 21px; height: 21px; }
.contact-item h3 { font-size: 15px; margin-bottom: 3px; }
.contact-item p { font-size: 14.5px; color: var(--text-muted); margin: 0; line-height: 1.7; }
.contact-item a { color: var(--accent-dark); font-weight: 600; }
.map-frame { border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; background: var(--ink-50); }
.map-ph { aspect-ratio: 16/10; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; color: var(--ink-500); text-align: center; padding: 20px; }
.map-ph .icon { width: 40px; height: 40px; color: var(--green-600); }
.map-ph b { font-size: 15px; color: var(--ink-700); }
.map-ph small { font-size: 12.5px; }

/* ============================================================ Footer ============================================================ */
.footer { background: var(--white); color: var(--ink-600); border-top: 1px solid var(--border); padding: 52px 0 0; font-size: 14px; }
.footer-top { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 38px; padding-bottom: 40px; border-bottom: 1px solid var(--border); }
.footer-brand { display: flex; align-items: center; gap: 11px; margin-bottom: 16px; }
.footer-brand svg { width: 34px; height: 34px; }
.footer-brand b { font-size: 17px; color: var(--ink-900); }
.footer-desc { font-size: 13.5px; line-height: 1.85; margin-bottom: 16px; }
.footer h4 { font-size: 15px; color: var(--ink-900); margin-bottom: 15px; font-weight: 700; }
.footer-links li { margin-bottom: 9px; }
.footer-links a { font-size: 13.5px; color: var(--ink-600); }
.footer-links a:hover { color: var(--brand-dark); }
.footer-contact li { display: flex; gap: 9px; margin-bottom: 11px; font-size: 13.5px; line-height: 1.7; }
.footer-contact .icon { width: 15px; height: 15px; color: var(--brand); flex: none; margin-top: 4px; }
.footer-contact b { color: var(--ink-900); font-size: 17px; font-weight: 700; }
.footer-bottom { padding: 20px 0; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 13px; color: var(--ink-500); }
.footer-bottom a { color: var(--ink-500); }
.footer-bottom a:hover { color: var(--brand-dark); }
.footer-legal { display: flex; gap: 16px; flex-wrap: wrap; }

/* ============================================================ Float bar ============================================================ */
.float-bar { position: fixed; right: 18px; bottom: 22px; z-index: 90; display: grid; gap: 10px; }
.float-btn {
  width: 52px; height: 52px; border-radius: 50%; background: var(--white);
  border: 1px solid var(--border); box-shadow: var(--shadow-lg); color: var(--brand-dark);
  display: flex; align-items: center; justify-content: center; transition: all .2s; position: relative;
}
.float-btn:hover { background: var(--green-50); color: var(--brand-dark); transform: translateY(-2px); }
.float-btn .icon { width: 23px; height: 23px; }
.float-btn.main { background: var(--accent); border-color: var(--accent); color: #fff; width: 58px; height: 58px; }
.float-btn.main:hover { background: var(--accent-dark); }
.float-tip {
  position: absolute; right: 66px; top: 50%; transform: translateY(-50%);
  background: var(--ink-900); color: #fff; font-size: 13px; padding: 7px 12px; border-radius: 6px;
  white-space: nowrap; opacity: 0; visibility: hidden; transition: .2s; pointer-events: none;
}
.float-btn:hover .float-tip { opacity: 1; visibility: visible; }

/* ============================================================ Utils ============================================================ */
.eyebrow { font-size: 13px; font-weight: 700; letter-spacing: 1px; color: var(--accent-dark); text-transform: uppercase; }
.mt-0 { margin-top: 0; } .mb-0 { margin-bottom: 0; }
.text-c { text-align: center; }
.lead { font-size: 16.5px; color: var(--ink-600); line-height: 1.85; }
.divider { height: 1px; background: var(--border); margin: 34px 0; }
.pill-row { display: flex; flex-wrap: wrap; gap: 8px; }

/* 空状态 / 说明 */
.note-box { background: var(--ink-50); border: 1px dashed var(--ink-300); border-radius: var(--radius); padding: 16px 20px; font-size: 13.5px; color: var(--ink-600); line-height: 1.75; }
.note-box b { color: var(--ink-800); }

/* ============================================================ Responsive ============================================================ */
@media (max-width: 1100px) {
  .hero h1 { font-size: 36px; }
  .hero-in { grid-template-columns: 1fr; gap: 34px; }
  .hero-art { max-width: 520px; }
  .stats { grid-template-columns: repeat(3, 1fr); }
  .stat:nth-child(3) { border-right: 0; }
  .stat:nth-child(4), .stat:nth-child(5) { border-top: 1px solid var(--border); }
  .stat:nth-child(5) { border-right: 0; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .detail-grid { grid-template-columns: 1fr; gap: 30px; }
  .side { position: static; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 30px; }
}
@media (max-width: 900px) {
  .mainnav-in .nav-item:not(.nav-toggle-item) { display: none; }
  .nav-search { display: none; }
  .nav-toggle { display: flex; }
  .drawer { display: block; }
  .topbar-hours { display: none; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .cta-band { grid-template-columns: 1fr; gap: 26px; padding: 30px 26px; }
  .contact-grid { grid-template-columns: 1fr; gap: 28px; }
}
@media (max-width: 680px) {
  body { font-size: 14.5px; }
  .section { padding: 44px 0; }
  .sec-title { font-size: 24px; }
  .hero { padding: 48px 0 44px; }
  .hero h1 { font-size: 28px; }
  .hero-lead { font-size: 15.5px; }
  .hero-cta .btn { flex: 1; }
  .stats { grid-template-columns: repeat(2, 1fr); margin-top: -22px; }
  .stat { border-right: 0 !important; border-bottom: 1px solid var(--border); }
  .stat:nth-child(odd) { border-right: 1px solid var(--border) !important; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .page-head h1 { font-size: 24px; }
  .page-head { padding: 34px 0 32px; }
  .news-item { grid-template-columns: 1fr; gap: 12px; }
  .news-date { display: flex; align-items: center; gap: 10px; text-align: left; padding: 8px 14px; }
  .news-date b { font-size: 17px; }
  .footer-top { grid-template-columns: 1fr; gap: 26px; }
  .footer-bottom { flex-direction: column; }
  .topbar-slogan { display: none; }
  .topbar-name { font-size: 14.5px; }
  .topbar-tel b { font-size: 16px; }
  .cta-band h2 { font-size: 21px; }
  .detail-media { padding: 18px; }
  .float-bar { right: 12px; bottom: 14px; }
  .float-btn { width: 46px; height: 46px; }
  .float-btn.main { width: 52px; height: 52px; }
  .float-tip { display: none; }
  .spec-table th { width: 96px; padding: 10px 12px; font-size: 13px; }
  .spec-table td { padding: 10px 12px; font-size: 13.5px; }
}
@media (max-width: 420px) {
  .steps { grid-template-columns: 1fr; }
  .wrap, .wrap-wide { padding: 0 15px; }
}

/* 打印 */
@media print {
  .topbar, .mainnav, .float-bar, .cta-band, .footer { display: none; }
}