/* ============================================================
   浙粤电器 · 设计系统 (橙色品牌 + 简洁排版)
   参考 insona.cc 的信息架构与版式气质
   ============================================================ */

:root {
  --orange: #ff820d;
  --orange-dark: #e96f00;
  --orange-soft: #fff3e8;
  --ink: #1a1d24;
  --ink-2: #3a3f4a;
  --gray: #6b7280;
  --gray-2: #9aa1ad;
  --bg: #ffffff;
  --bg-soft: #f6f7f9;
  --bg-dark: #16181d;
  --border: #ececf0;
  --shadow-sm: 0 2px 10px rgba(20, 24, 36, .06);
  --shadow: 0 8px 30px rgba(20, 24, 36, .10);
  --shadow-lg: 0 18px 50px rgba(20, 24, 36, .16);
  --radius: 14px;
  --radius-sm: 10px;
  --maxw: 1200px;
  --header-h: 70px;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
.section { padding: 84px 0; }
.section-soft { background: var(--bg-soft); }
.section-title { text-align: center; margin-bottom: 52px; }
.section-title .eyebrow {
  display: inline-block; color: var(--orange);
  font-weight: 700; letter-spacing: 2px; font-size: 13px;
  text-transform: uppercase; margin-bottom: 12px;
}
.section-title h2 { font-size: 32px; font-weight: 800; letter-spacing: -.5px; }
.section-title p { color: var(--gray); margin-top: 14px; font-size: 16px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 28px; border-radius: 999px; font-weight: 700; font-size: 15px;
  border: 1.5px solid transparent; transition: all .25s var(--ease);
  cursor: pointer;
}
.btn-primary { background: var(--orange); color: #fff; box-shadow: 0 8px 20px rgba(255, 130, 13, .30); }
.btn-primary:hover { background: var(--orange-dark); transform: translateY(-2px); box-shadow: 0 12px 26px rgba(255, 130, 13, .38); }
.btn-outline { background: transparent; color: #fff; border-color: rgba(255,255,255,.5); }
.btn-outline:hover { border-color: #fff; background: rgba(255,255,255,.12); }
.btn-ghost { background: var(--orange-soft); color: var(--orange-dark); }
.btn-ghost:hover { background: #ffe7d2; }
.btn-dark { background: var(--ink); color: #fff; }
.btn-dark:hover { background: #000; transform: translateY(-2px); }

/* ---------- Header ---------- */
#header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--header-h);
  background: rgba(255,255,255,.86);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: all .3s var(--ease);
}
#header.scrolled { background: #fff; border-bottom-color: var(--border); box-shadow: var(--shadow-sm); }
.header-inner { max-width: var(--maxw); margin: 0 auto; height: 100%; padding: 0 20px;
  display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 19px; font-weight: 800; letter-spacing: -.3px; }
.logo .logo-icon {
  width: 36px; height: 36px; border-radius: 9px; background: var(--orange);
  color: #fff; display: grid; place-items: center; font-size: 18px; font-weight: 800;
  box-shadow: 0 4px 12px rgba(255,130,13,.35);
}
.logo span span { color: var(--orange); }
.logo img { height: 42px; width: auto; max-width: 100%; display: block; }
.nav-bar { display: flex; align-items: center; gap: 4px; }
.nav-bar > a {
  position: relative; padding: 10px 15px; font-weight: 600; font-size: 15px;
  color: var(--ink-2); border-radius: 8px; transition: color .2s;
}
.nav-bar > a:hover { color: var(--orange); }
.nav-bar > a.active { color: var(--orange); }
.nav-bar > a.active::after {
  content: ""; position: absolute; left: 15px; right: 15px; bottom: 2px; height: 3px;
  background: var(--orange); border-radius: 3px;
}
.header-cta { margin-left: 8px; }
.nav-toggle { display: none; background: none; border: none; width: 42px; height: 42px; position: relative; }
.nav-toggle span { position: absolute; left: 9px; right: 9px; height: 2px; background: var(--ink); border-radius: 2px; transition: .3s; }
.nav-toggle span:nth-child(1) { top: 14px; }
.nav-toggle span:nth-child(2) { top: 20px; }
.nav-toggle span:nth-child(3) { top: 26px; }
body.menu-open .nav-toggle span:nth-child(1) { top: 20px; transform: rotate(45deg); }
body.menu-open .nav-toggle span:nth-child(2) { opacity: 0; }
body.menu-open .nav-toggle span:nth-child(3) { top: 20px; transform: rotate(-45deg); }

/* ---------- Page hero (inner pages) ---------- */
.page-hero {
  margin-top: var(--header-h);
  background: linear-gradient(120deg, #1a1d24 0%, #2a2f3a 60%, #ff820d22 100%);
  color: #fff; padding: 78px 0 70px; text-align: center; position: relative; overflow: hidden;
}
.page-hero::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(900px 300px at 80% -10%, rgba(255,130,13,.35), transparent 60%);
}
.page-hero > .container { position: relative; z-index: 1; }
.page-hero h1 { font-size: 38px; font-weight: 800; letter-spacing: -.5px; }
.page-hero p { color: #c7ccd6; margin-top: 14px; font-size: 17px; }

/* ---------- Hero (home) ---------- */
.hero {
  margin-top: var(--header-h); position: relative; min-height: 600px;
  display: flex; align-items: center; color: #fff; overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center; }
.hero-bg::before { content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(15,17,22,.88) 0%, rgba(15,17,22,.55) 45%, rgba(15,17,22,.25) 100%); }
.hero-inner { position: relative; z-index: 2; max-width: var(--maxw); margin: 0 auto; padding: 0 20px; width: 100%; }
.hero-eyebrow { display: inline-flex; align-items: center; gap: 8px; padding: 7px 16px; border-radius: 999px;
  background: rgba(255,130,13,.18); border: 1px solid rgba(255,130,13,.5); color: #ffb877; font-size: 13px; font-weight: 600; margin-bottom: 22px; }
.hero h1 { font-size: 52px; line-height: 1.12; font-weight: 800; letter-spacing: -1px; max-width: 760px; }
.hero h1 .hl { color: var(--orange); }
.hero p.lead { margin-top: 22px; font-size: 19px; color: #e4e7ee; max-width: 600px; }
.hero-actions { margin-top: 36px; display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats { margin-top: 54px; display: flex; gap: 46px; flex-wrap: wrap; }
.hero-stats .stat { background: rgba(255,255,255,.95); border: 1px solid rgba(255,255,255,.5); border-radius: var(--radius); padding: 20px 26px; min-width: 126px; box-shadow: 0 10px 30px rgba(0,0,0,.18); }
.hero-stats .stat .num { font-size: 34px; font-weight: 800; color: var(--bg-dark); }
.hero-stats .stat .num span { color: var(--orange); }
.hero-stats .stat .label { color: #555; font-size: 14px; margin-top: 2px; }

/* ---------- Concept strip (人因照明 concept like insona) ---------- */
.concept { background: var(--bg-dark); color: #fff; padding: 64px 0; }
.concept-head { text-align: center; margin-bottom: 40px; }
.concept-head h2 { font-size: 28px; font-weight: 800; }
.concept-head p { color: #aeb4c0; margin-top: 10px; }
.concept-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.concept-item { background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.08); border-radius: var(--radius); padding: 26px 22px; transition: .3s var(--ease); }
.concept-item:hover { border-color: rgba(255,130,13,.5); transform: translateY(-4px); }
.concept-item .time { color: var(--orange); font-weight: 700; font-size: 14px; }
.concept-item h4 { margin: 10px 0 8px; font-size: 17px; }
.concept-item p { color: #aeb4c0; font-size: 14px; line-height: 1.6; }
.concept-item .kt { margin-top: 14px; display: flex; align-items: center; gap: 10px; font-size: 13px; color: #cfd4de; }
.concept-item .kt .dot { width: 26px; height: 26px; border-radius: 50%; background: var(--orange); display: grid; place-items: center; color: #fff; font-weight: 700; }

/* ---------- Advantage grid ---------- */
.adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.adv-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 30px 26px; transition: .3s var(--ease); }
.adv-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); border-color: transparent; }
.adv-card .ic { width: 52px; height: 52px; border-radius: 13px; background: var(--orange-soft); color: var(--orange); display: grid; place-items: center; font-size: 24px; font-weight: 800; margin-bottom: 18px; }
.adv-card h3 { font-size: 18px; margin-bottom: 8px; }
.adv-card p { color: var(--gray); font-size: 14.5px; line-height: 1.65; }

/* ---------- Product categories (home) ---------- */
.cat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.cat-card { position: relative; border-radius: var(--radius); overflow: hidden; min-height: 280px; display: flex; align-items: flex-end; color: #fff; transition: .35s var(--ease); }
.cat-card .bg { position: absolute; inset: 0; background-size: cover; background-position: center; transition: transform .6s var(--ease); }
.cat-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,0) 30%, rgba(0,0,0,.78) 100%); }
.cat-card:hover .bg { transform: scale(1.07); }
.cat-card .c-body { position: relative; z-index: 2; padding: 26px; width: 100%; }
.cat-card h3 { font-size: 21px; font-weight: 800; }
.cat-card p { font-size: 13.5px; color: #e9ebf0; margin-top: 8px; }
.cat-card .more { display: inline-flex; align-items: center; gap: 6px; margin-top: 14px; color: var(--orange); font-weight: 700; font-size: 14px; }
.cat-card .more::after { content: "→"; transition: transform .25s; }
.cat-card:hover .more::after { transform: translateX(4px); }

/* ---------- Generic card grid (products/cases/news) ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }

.card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: .3s var(--ease); cursor: pointer; }
.card:hover { box-shadow: var(--shadow); transform: translateY(-5px); border-color: transparent; }
.card .img { aspect-ratio: 4/3; overflow: hidden; background: var(--bg-soft); }
.card .img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s var(--ease); }
.card:hover .img img { transform: scale(1.06); }
.card .body { padding: 22px 22px 24px; }
.card .cat { display: inline-block; color: var(--orange); font-size: 12.5px; font-weight: 700; letter-spacing: .5px; margin-bottom: 8px; }
.card h3 { font-size: 18px; font-weight: 700; line-height: 1.4; }
.card .body p { color: var(--gray); font-size: 14px; margin-top: 10px; line-height: 1.65; }
.card .meta { margin-top: 14px; display: flex; align-items: center; gap: 12px; color: var(--gray-2); font-size: 13px; }
.card .tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 14px; }
.card .tags span { background: var(--bg-soft); color: var(--ink-2); font-size: 12px; padding: 4px 10px; border-radius: 6px; }

/* filter tabs */
.tabs { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 40px; }
.tabs a { padding: 9px 20px; border-radius: 999px; background: var(--bg-soft); color: var(--ink-2); font-weight: 600; font-size: 14px; transition: .2s; border: 1px solid transparent; }
.tabs a:hover { color: var(--orange); }
.tabs a.active { background: var(--orange); color: #fff; box-shadow: 0 6px 16px rgba(255,130,13,.3); }

/* ---------- Solutions preview ---------- */
.sol-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.sol-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 32px 28px; transition: .3s var(--ease); position: relative; overflow: hidden; }
.sol-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: var(--orange); transform: scaleX(0); transform-origin: left; transition: transform .35s var(--ease); }
.sol-card:hover { box-shadow: var(--shadow); transform: translateY(-5px); }
.sol-card:hover::before { transform: scaleX(1); }
.sol-card .ic { width: 56px; height: 56px; border-radius: 14px; background: var(--orange-soft); color: var(--orange); display: grid; place-items: center; font-size: 26px; font-weight: 800; margin-bottom: 18px; }
.sol-card h3 { font-size: 19px; margin-bottom: 10px; }
.sol-card p { color: var(--gray); font-size: 14.5px; line-height: 1.65; }
.sol-card .more { display: inline-flex; align-items: center; gap: 6px; margin-top: 16px; color: var(--orange); font-weight: 700; font-size: 14px; }

/* ---------- CTA band ---------- */
.cta-band { background: linear-gradient(120deg, var(--ink) 0%, #2a2f3a 70%, #ff820d33 100%); color: #fff; border-radius: 22px; padding: 56px 50px; display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; position: relative; overflow: hidden; }
.cta-band::after { content: ""; position: absolute; right: -60px; top: -60px; width: 280px; height: 280px; border-radius: 50%; background: radial-gradient(circle, rgba(255,130,13,.4), transparent 70%); }
.cta-band h2 { font-size: 28px; font-weight: 800; }
.cta-band p { color: #c7ccd6; margin-top: 10px; font-size: 16px; }
.cta-band .phone { font-size: 30px; font-weight: 800; color: var(--orange); margin-top: 8px; }
.cta-band .actions { position: relative; z-index: 2; display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- Detail view ---------- */
.detail-wrap { max-width: 1000px; margin: 0 auto; padding: 60px 20px 80px; }
.detail-head { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-bottom: 10px; }
.detail-head .cat { color: var(--orange); font-weight: 700; font-size: 14px; }
.detail-head h1 { font-size: 28px; font-weight: 800; letter-spacing: -.5px; white-space: nowrap; }
.detail-hero { border-radius: var(--radius); overflow: hidden; margin: 26px 0 36px; box-shadow: var(--shadow); }
.detail-hero img { width: 100%; max-height: 520px; object-fit: cover; }
.detail-body { font-size: 16px; line-height: 1.9; color: var(--ink-2); }
.detail-body h3 { font-size: 22px; margin: 38px 0 16px; font-weight: 800; }
.detail-body p { margin-bottom: 16px; }
.detail-section { background: var(--bg-soft); border-radius: var(--radius); padding: 30px; margin: 28px 0; }
.detail-section h3 { margin-bottom: 16px; }
.detail-section ul { padding-left: 4px; }
.detail-section ul li { position: relative; padding-left: 26px; margin-bottom: 10px; color: var(--ink-2); }
.detail-section ul li::before { content: ""; position: absolute; left: 4px; top: 11px; width: 8px; height: 8px; border-radius: 50%; background: var(--orange); }
.spec-table { width: 100%; border-collapse: collapse; }
.spec-table td { padding: 13px 16px; border-bottom: 1px solid var(--border); font-size: 15px; }
.spec-table td:first-child { color: var(--gray); width: 38%; background: #fafafa; }
.spec-table tr:last-child td { border-bottom: none; }
.detail-nav { margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--border); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.detail-nav a { color: var(--orange); font-weight: 600; }

/* metrics pills */
.metrics { display: flex; flex-wrap: wrap; gap: 12px; margin: 22px 0; }
.metric-pill { background: var(--orange-soft); color: var(--orange-dark); font-weight: 700; padding: 10px 18px; border-radius: 999px; font-size: 14px; }

/* ---------- About ---------- */
.about-intro { display: grid; grid-template-columns: 1.1fr .9fr; gap: 50px; align-items: center; }
.about-intro .txt h2 { font-size: 30px; font-weight: 800; margin-bottom: 18px; letter-spacing: -.5px; }
.about-intro .txt p { color: var(--ink-2); margin-bottom: 14px; font-size: 16px; line-height: 1.85; }
.about-intro .pic { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.values-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.value-card { text-align: center; padding: 34px 24px; border-radius: var(--radius); background: #fff; border: 1px solid var(--border); transition: .3s; }
.value-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.value-card .ic { font-size: 34px; margin-bottom: 14px; }
.value-card h3 { font-size: 18px; margin-bottom: 8px; }
.value-card p { color: var(--gray); font-size: 14px; }
.timeline { position: relative; max-width: 760px; margin: 0 auto; padding-left: 30px; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 6px; bottom: 6px; width: 2px; background: var(--border); }
.tl-item { position: relative; padding: 0 0 34px 30px; }
.tl-item::before { content: ""; position: absolute; left: -30px; top: 4px; width: 16px; height: 16px; border-radius: 50%; background: #fff; border: 3px solid var(--orange); }
.tl-item .yr { color: var(--orange); font-weight: 800; font-size: 16px; }
.tl-item h4 { font-size: 18px; margin: 4px 0 6px; }
.tl-item p { color: var(--gray); font-size: 14.5px; }

/* ---------- Stats band ---------- */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.stat { text-align: center; padding: 38px 20px; border-radius: var(--radius); background: #fff; border: 1px solid var(--border); transition: .3s; }
.stat:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.stat .num { font-size: 42px; font-weight: 800; color: var(--orange); letter-spacing: -1px; line-height: 1; }
.stat .lbl { color: var(--gray); font-size: 15px; margin-top: 10px; }

.center-note { text-align: center; max-width: 900px; margin: 26px auto 0; color: var(--gray); font-size: 15px; line-height: 1.75; }
.center-note strong { color: var(--ink); }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.contact-info .info-item { display: flex; gap: 16px; padding: 20px 0; border-bottom: 1px solid var(--border); }
.contact-info .info-item:last-child { border-bottom: none; }
.contact-info .ic { width: 46px; height: 46px; border-radius: 12px; background: var(--orange-soft); color: var(--orange); display: grid; place-items: center; font-size: 20px; font-weight: 800; flex-shrink: 0; }
.contact-info .info-item .k { color: var(--gray); font-size: 13px; }
.contact-info .info-item .v { font-size: 17px; font-weight: 700; margin-top: 2px; }
.contact-form { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 34px; box-shadow: var(--shadow-sm); }
.contact-form .form-group { margin-bottom: 18px; }
.contact-form label { display: block; font-weight: 600; margin-bottom: 8px; font-size: 14px; }
.contact-form input, .contact-form textarea { width: 100%; padding: 12px 14px; border: 1.5px solid var(--border); border-radius: 10px; font-size: 15px; font-family: inherit; transition: border-color .2s; }
.contact-form input:focus, .contact-form textarea:focus { outline: none; border-color: var(--orange); }
.contact-form textarea { min-height: 120px; resize: vertical; }
.form-alert { padding: 14px 18px; border-radius: 10px; margin-bottom: 18px; font-weight: 600; font-size: 14px; }
.form-alert.ok { background: #eafaf0; color: #1a9c54; }
.form-alert.err { background: #fdecec; color: #d93636; }
.promise-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 10px; }
.promise-card { text-align: center; padding: 28px 20px; border-radius: var(--radius); background: var(--bg-soft); }
.promise-card .ic { font-size: 30px; margin-bottom: 10px; }
.promise-card h4 { font-size: 17px; margin-bottom: 6px; }
.promise-card p { color: var(--gray); font-size: 13.5px; }

/* ---------- Footer ---------- */
#footer { background: var(--bg-dark); color: #c7ccd6; padding: 60px 0 28px; margin-top: 0; }
.footer-top { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.3fr; gap: 40px; }
.footer-col h4 { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 18px; }
.footer-brand .logo { color: #fff; margin-bottom: 16px; }
.footer-brand .logo .logo-icon { background: var(--orange); }
.footer-brand p { font-size: 14px; line-height: 1.8; color: #aeb4c0; max-width: 320px; }
.footer-col ul li { margin-bottom: 11px; }
.footer-col ul li a { color: #aeb4c0; font-size: 14px; transition: color .2s; }
.footer-col ul li a:hover { color: var(--orange); }
.footer-contact .row { display: flex; gap: 10px; margin-bottom: 12px; font-size: 14px; color: #aeb4c0; }
.footer-contact .row b { color: #fff; font-weight: 600; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); margin-top: 44px; padding-top: 22px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; font-size: 13px; color: #8b919e; }

/* ---------- Right float tools ---------- */
.float-tools { position: fixed; right: 22px; bottom: 90px; z-index: 900; display: flex; flex-direction: column; gap: 12px; }
.float-tools a { width: 50px; height: 50px; border-radius: 14px; background: #fff; box-shadow: var(--shadow); display: grid; place-items: center; font-size: 20px; color: var(--ink); position: relative; transition: .25s var(--ease); }
.float-tools a:hover { background: var(--orange); color: #fff; transform: translateY(-3px); }
.float-tools a .tooltip { position: absolute; right: 60px; top: 50%; transform: translateY(-50%); background: var(--ink); color: #fff; padding: 7px 12px; border-radius: 8px; font-size: 13px; white-space: nowrap; opacity: 0; pointer-events: none; transition: .2s; }
.float-tools a:hover .tooltip { opacity: 1; }
.float-top { background: var(--orange) !important; color: #fff !important; }

/* ---------- FAQ ---------- */
.faq { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 22px 24px; transition: .25s var(--ease); }
.faq-item:hover { border-color: var(--orange); box-shadow: var(--shadow); }
.faq-item h3 { font-size: 16.5px; color: var(--ink); margin-bottom: 10px; line-height: 1.5; }
.faq-item p { font-size: 14.5px; color: var(--gray); line-height: 1.85; }

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

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .adv-grid, .cat-grid, .sol-grid, .values-grid, .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .concept-row { grid-template-columns: repeat(2, 1fr); }
  .about-intro { grid-template-columns: 1fr; gap: 30px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .nav-bar { position: fixed; top: var(--header-h); left: 0; right: 0; background: #fff; flex-direction: column; align-items: stretch; padding: 14px 20px 22px; gap: 2px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow); transform: translateY(-130%); transition: transform .35s var(--ease); max-height: calc(100vh - var(--header-h)); overflow-y: auto; }
  body.menu-open .nav-bar { transform: translateY(0); }
  .nav-bar > a { padding: 13px 8px; font-size: 16px; border-bottom: 1px solid var(--border); }
  .nav-bar > a.active::after { display: none; }
  .header-cta { display: none; }
  .nav-toggle { display: block; }
  .hero h1 { font-size: 34px; }
  .hero-stats { gap: 26px; }
  .section { padding: 56px 0; }
  .section-title h2 { font-size: 26px; }
  .grid-3, .grid-2, .adv-grid, .cat-grid, .sol-grid, .values-grid, .concept-row, .promise-grid, .stats-grid, .faq { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .cta-band { padding: 36px 26px; }
  .cta-band h2 { font-size: 23px; }
  .page-hero h1 { font-size: 28px; }
  .detail-head h1 { font-size: 26px; }
}

/* ---------- Article typography (news detail body) ---------- */
.detail-body {
  font-size: 17px;
  line-height: 2.05;
  color: #444b57;
  letter-spacing: .01em;
}
.detail-body p { margin-bottom: 20px; text-align: justify; text-justify: inter-ideograph; }
.detail-body p.lead {
  font-size: 18px;
  line-height: 2.1;
  color: #1a3a6b;
  font-weight: 600;
  background: linear-gradient(180deg, #f5f8fd 0%, #eef3fa 100%);
  border-left: 4px solid var(--orange);
  border-radius: 0 12px 12px 0;
  padding: 20px 24px;
  margin-bottom: 30px;
}
.detail-body strong {
  color: #1a3a6b;
  font-weight: 800;
  box-shadow: inset 0 -3px 0 #ffd9a8;
  padding: 0 1px;
}
.detail-body h2 {
  position: relative;
  font-size: 23px;
  font-weight: 800;
  color: #15294d;
  line-height: 1.5;
  margin: 46px 0 20px;
  padding-left: 18px;
  border-left: 5px solid var(--orange);
}
.detail-body h3 { font-size: 20px; margin: 34px 0 14px; font-weight: 800; color: #15294d; }
.detail-body ul { padding-left: 4px; margin: 0 0 20px; }
.detail-body ul li { position: relative; padding-left: 26px; margin-bottom: 12px; color: #444b57; }
.detail-body ul li::before {
  content: ""; position: absolute; left: 6px; top: 12px;
  width: 7px; height: 7px; border-radius: 50%; background: var(--orange);
}

/* service list cards (本地化全链条服务) */
.svc-list { margin: 10px 0 30px; }
.svc-item {
  display: flex;
  gap: 16px;
  padding: 20px 22px;
  background: #f8fafc;
  border: 1px solid #e8edf4;
  border-radius: 14px;
  margin-bottom: 14px;
}
.svc-item:last-child { margin-bottom: 0; }
.svc-item .svc-bar {
  width: 4px; border-radius: 4px; flex: none;
  background: linear-gradient(180deg, var(--orange), #ffb15c);
}
.svc-item h4 { margin: 0 0 8px; font-size: 17px; font-weight: 800; color: #1a3a6b; }
.svc-item p { margin: 0; font-size: 15.5px; line-height: 1.9; color: #4a515e; text-align: justify; }

/* article highlight callout */
.article-callout {
  margin: 34px 0 6px;
  padding: 26px 28px;
  background: linear-gradient(120deg, #1a3a6b 0%, #244a82 100%);
  border-radius: 16px;
  box-shadow: var(--shadow);
}
.article-callout .ac-title { margin: 0 0 10px; font-size: 19px; font-weight: 800; color: #fff; }
.article-callout .ac-title::before { content: "\25C6  "; color: var(--orange); }
.article-callout .ac-text { margin: 0; font-size: 15.5px; line-height: 1.95; color: #e8eef8; text-align: justify; }
.article-callout strong { color: #ffd9a8; box-shadow: none; padding: 0; }

@media (max-width: 640px) {
  .detail-body { font-size: 16px; }
  .detail-body h2 { font-size: 20px; margin: 36px 0 16px; }
  .svc-item { padding: 16px; }
  .article-callout { padding: 22px; }
}

/* 正文内嵌链接（如展厅锚点） */
.detail-body a.inline-link {
  color: #1a3a6b;
  font-weight: 700;
  text-decoration: none;
  background-image: linear-gradient(var(--orange), var(--orange));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 100% 2px;
  padding-bottom: 1px;
  transition: color .2s ease, background-size .2s ease;
}
.detail-body a.inline-link::after {
  content: "\2197";
  font-size: .8em;
  margin-left: 2px;
  color: var(--orange);
  vertical-align: 2px;
}
.detail-body a.inline-link:hover {
  color: var(--orange-dark);
  background-size: 100% 100%;
  background-image: linear-gradient(var(--orange-soft), var(--orange-soft));
}

/* 联系页展厅锚点定位偏移，避免被固定头部遮挡 */
#showroom { scroll-margin-top: 96px; }
#showroom:target {
  animation: showroom-flash 2s ease;
  border-radius: 8px;
}
@keyframes showroom-flash {
  0%, 60% { box-shadow: 0 0 0 3px rgba(255,130,13,.55); background: rgba(255,130,13,.10); }
  100% { box-shadow: 0 0 0 0 rgba(255,130,13,0); background: transparent; }
}

/* 深蓝 callout 中的内嵌链接需要浅色，避免与背景重合 */
.article-callout .inline-link {
  color: #ffffff;
  background-image: linear-gradient(var(--orange), var(--orange));
}
.article-callout .inline-link::after {
  color: var(--orange);
}
.article-callout .inline-link:hover {
  color: #ffe6ce;
  background-image: linear-gradient(rgba(255,255,255,.22), rgba(255,255,255,.22));
}
.article-callout .inline-link:hover::after {
  color: #ffe6ce;
}