/* ==========================================================================
   马孛罗商业空间设计公司 — 静态站全局样式
   设计 token 源自原站 www.12mbl.com 的 style.css / common.css
   主色 #c9a467 香槟金 | 深色 #1c1f36 | 辅助 #a0a2a8 #efedd4
   ========================================================================== */
:root {
  --gold: #c9a467;
  --gold-dark: #b08d4f;
  --gold-soft: rgba(201, 164, 103, .12);
  --ink: #1c1f36;
  --ink-soft: #2a2e4a;
  --gray: #a0a2a8;
  --gray-dark: #666a75;
  --cream: #efedd4;
  --bg: #f7f7f5;
  --white: #fff;
  --accent: #f66f6a;
  --line: #e7e7e7;
  --font: "Microsoft YaHei", "微软雅黑", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  --container: 1200px;
  --radius: 8px;
  --shadow: 0 6px 24px rgba(28, 31, 54, .08);
  --shadow-lg: 0 16px 44px rgba(28, 31, 54, .14);
  --transition: .28s cubic-bezier(.4, 0, .2, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.7;
  color: #333;
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
ul, ol { list-style: none; }
.container { width: min(var(--container), 92%); margin: 0 auto; }
section { position: relative; }

/* ---------- 顶部信息条 ---------- */
.topbar {
  background: var(--ink);
  color: rgba(255, 255, 255, .78);
  font-size: 13px;
}
.topbar .container { display: flex; justify-content: space-between; align-items: center; height: 38px; }
.topbar a { color: var(--gold); }
.topbar .slogan { letter-spacing: .5px; }

/* ---------- 主导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 2px 12px rgba(28, 31, 54, .05);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 78px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand img { height: 46px; width: auto; }
.brand-name { display: flex; flex-direction: column; line-height: 1.25; }
.brand-name .cn { font-size: 22px; font-weight: 700; color: var(--ink); letter-spacing: 2px; }
.brand-name .en { font-size: 11px; color: var(--gold); letter-spacing: 3px; text-transform: uppercase; }
.nav { display: flex; align-items: center; gap: 4px; }
.nav > li { position: relative; }
.nav > li > a {
  display: block; padding: 26px 16px; font-size: 15px; color: var(--ink);
  font-weight: 500; position: relative;
}
.nav > li > a::after {
  content: ""; position: absolute; left: 16px; right: 16px; bottom: 20px; height: 2px;
  background: var(--gold); transform: scaleX(0); transform-origin: left; transition: transform var(--transition);
}
.nav > li:hover > a::after, .nav > li.active > a::after { transform: scaleX(1); }
.nav > li.active > a { color: var(--gold-dark); }
.dropdown { display: none; }
.nav > li:hover .dropdown {
  display: block; position: absolute; top: 100%; left: 0; min-width: 220px;
  background: var(--white); box-shadow: var(--shadow-lg); border: 1px solid var(--line);
  border-top: 2px solid var(--gold); padding: 8px 0; border-radius: 0 0 var(--radius) var(--radius);
}
.dropdown a { display: block; padding: 10px 20px; font-size: 14px; color: #444; }
.dropdown a:hover { background: var(--gold-soft); color: var(--gold-dark); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 10px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--ink); transition: var(--transition); }

/* 欢迎浮条（内页横幅） */
.inner-banner {
  background: linear-gradient(120deg, var(--ink) 0%, #333a5e 60%, #46507c 100%);
  color: #fff; padding: 64px 0 56px; text-align: center; position: relative; overflow: hidden;
}
.inner-banner::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(201, 164, 103, .18), transparent 42%),
              radial-gradient(circle at 80% 70%, rgba(201, 164, 103, .12), transparent 40%);
}
.inner-banner .container { position: relative; z-index: 1; }
.inner-banner h1 { font-size: 34px; font-weight: 700; letter-spacing: 3px; margin-bottom: 10px; }
.inner-banner p { color: rgba(255, 255, 255, .72); font-size: 15px; letter-spacing: 1px; }
.breadcrumb { margin-top: 18px; font-size: 13px; color: rgba(255, 255, 255, .6); }
.breadcrumb a { color: var(--gold); }

/* ---------- 区块标题 ---------- */
.sec { padding: 84px 0; }
.sec.bg { background: var(--bg); }
.sec.bg-cream { background: var(--cream); }
.sec-head { text-align: center; margin-bottom: 48px; }
.sec-head .tag {
  display: inline-block; font-size: 12px; letter-spacing: 3px; color: var(--gold-dark);
  border: 1px solid var(--gold); padding: 4px 16px; border-radius: 999px; margin-bottom: 14px;
}
.sec-head h2 { font-size: 30px; color: var(--ink); letter-spacing: 2px; }
.sec-head .sub { color: var(--gray-dark); margin-top: 12px; font-size: 15px; }

/* ---------- 首页 Hero ---------- */
.hero { position: relative; min-height: 620px; display: flex; align-items: center; overflow: hidden; background: var(--ink); }
.hero-slider { position: absolute; inset: 0; }
.hero-slide { position: absolute; inset: 0; opacity: 0; transition: opacity .9s ease; }
.hero-slide.active { opacity: 1; }
.hero-slide a, .hero-slide span { display: block; width: 100%; height: 100%; background-size: cover; background-position: center; background-repeat: no-repeat; }
.hero-slide a { cursor: pointer; }
.hero-slide .hero-fallback { background: linear-gradient(135deg, #1c1f36 0%, #33405f 100%); }
.hero-slider::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(28, 31, 54, .92) 0%, rgba(28, 31, 54, .55) 55%, rgba(28, 31, 54, .2) 100%);
}
/* 轮播分页点与箭头 */
.hero-dots { position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%); z-index: 3; display: flex; gap: 10px; align-items: center; }
.hero-dots i { width: 10px; height: 10px; border-radius: 999px; background: rgba(255, 255, 255, .45); cursor: pointer; transition: all .3s ease; }
.hero-dots i.active { width: 26px; background: var(--gold); }
.hero-arrow { position: absolute; top: 50%; transform: translateY(-50%); z-index: 3; width: 46px; height: 46px; border-radius: 50%; border: 1px solid rgba(255, 255, 255, .35); background: rgba(255, 255, 255, .08); color: #fff; font-size: 26px; line-height: 1; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all .3s ease; backdrop-filter: blur(4px); }
.hero-arrow:hover { background: var(--gold); color: var(--ink); border-color: var(--gold); transform: translateY(-50%) scale(1.06); }
.hero-arrow.prev { left: 28px; }
.hero-arrow.next { right: 28px; }
.hero-content { position: relative; z-index: 2; color: #fff; padding: 96px 0; }
.hero-content .kicker { color: var(--gold); letter-spacing: 4px; font-size: 14px; margin-bottom: 18px; text-transform: uppercase; }
.hero-content h1 { font-size: 48px; line-height: 1.25; font-weight: 700; letter-spacing: 2px; margin-bottom: 20px; max-width: 720px; }
.hero-content p { font-size: 17px; color: rgba(255, 255, 255, .82); max-width: 640px; line-height: 1.9; }
.hero-actions { margin-top: 36px; display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 34px; border-radius: 40px; font-size: 15px; font-weight: 600;
  transition: var(--transition); cursor: pointer; border: 1px solid transparent;
}
.btn-gold { background: var(--gold); color: var(--ink); }
.btn-gold:hover { background: var(--gold-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 10px 24px rgba(201, 164, 103, .4); }
.btn-ghost { border-color: rgba(255, 255, 255, .5); color: #fff; }
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); transform: translateY(-2px); }
.btn-dark { background: var(--ink); color: #fff; }
.btn-dark:hover { background: var(--gold); color: var(--ink); }

/* hero 数据条 */
.hero-stats { position: relative; z-index: 2; background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .14); backdrop-filter: blur(8px); border-radius: var(--radius); display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; padding: 28px 36px; max-width: 900px; }
.hero-stats .stat b { font-size: 34px; color: var(--gold); display: block; font-weight: 700; }
.hero-stats .stat span { color: rgba(255, 255, 255, .75); font-size: 14px; }
.hero-stats .divider { width: 1px; height: 46px; background: rgba(255, 255, 255, .16); }

/* ---------- 分类入口卡片 ---------- */
.cat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.cat-card {
  position: relative; border-radius: var(--radius); overflow: hidden; background: var(--white);
  box-shadow: var(--shadow); transition: var(--transition); display: block;
}
.cat-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.cat-card .img { height: 210px; overflow: hidden; }
.cat-card .img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.cat-card:hover .img img { transform: scale(1.08); }
.cat-card .body { padding: 22px 24px 26px; }
.cat-card h3 { font-size: 19px; color: var(--ink); margin-bottom: 8px; }
.cat-card p { color: var(--gray-dark); font-size: 13.5px; margin-bottom: 14px; min-height: 40px; }
.cat-card .more { font-size: 13px; color: var(--gold-dark); font-weight: 600; display: inline-flex; align-items: center; gap: 6px; }

/* ---------- 产品卡片 ---------- */
.prod-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.prod-card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; transition: var(--transition); display: flex; flex-direction: column;
}
.prod-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(201, 164, 103, .5); }
.prod-card .img { height: 230px; overflow: hidden; background: #f2f2f0; position: relative; }
.prod-card .img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.prod-card:hover .img img { transform: scale(1.06); }
.prod-card .type-tag { position: absolute; top: 12px; left: 12px; background: rgba(28, 31, 54, .82); color: var(--gold); font-size: 12px; padding: 3px 12px; border-radius: 999px; }
.prod-card .body { padding: 18px 20px 22px; display: flex; flex-direction: column; flex: 1; }
.prod-card h3 { font-size: 16px; color: var(--ink); line-height: 1.5; margin-bottom: 8px; font-weight: 600; min-height: 48px; }
.prod-card p { font-size: 13px; color: var(--gray-dark); flex: 1; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

/* ---------- 案例卡片 ---------- */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.case-card { background: var(--white); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: var(--transition); display: block; }
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.case-card .img { height: 230px; overflow: hidden; position: relative; }
.case-card .img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.case-card:hover .img img { transform: scale(1.06); }
.case-card .img .date-tag { position: absolute; top: 14px; right: 14px; background: rgba(201, 164, 103, .95); color: var(--ink); font-size: 12.5px; padding: 4px 12px; border-radius: 999px; font-weight: 600; }
.case-card .body { padding: 22px 24px 26px; }
.case-card h3 { font-size: 17px; color: var(--ink); line-height: 1.55; margin-bottom: 6px; }
.case-card .subtitle { color: var(--gold-dark); font-size: 13px; margin-bottom: 10px; }
.case-card p { color: var(--gray-dark); font-size: 13.5px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* ---------- 特色 / 优势 ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.feature-card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 36px 30px; transition: var(--transition); position: relative; overflow: hidden;
}
.feature-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--gold), transparent); transform: scaleX(0); transform-origin: left; transition: transform var(--transition); }
.feature-card:hover::before { transform: scaleX(1); }
.feature-card:hover { box-shadow: var(--shadow-lg); }
.feature-icon { width: 62px; height: 62px; border-radius: 14px; background: var(--gold-soft); display: flex; align-items: center; justify-content: center; margin-bottom: 20px; }
.feature-icon svg { width: 32px; height: 32px; stroke: var(--gold-dark); }
.feature-card h3 { font-size: 18px; color: var(--ink); margin-bottom: 10px; }
.feature-card p { color: var(--gray-dark); font-size: 13.8px; }

/* ---------- 流程步骤 ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; counter-reset: step; }
.step { position: relative; background: var(--white); border-radius: var(--radius); padding: 34px 26px; box-shadow: var(--shadow); }
.step .num { font-size: 44px; font-weight: 700; color: var(--gold-soft); line-height: 1; margin-bottom: 6px; display: block; }
.step h3 { font-size: 17px; color: var(--ink); margin-bottom: 10px; }
.step p { color: var(--gray-dark); font-size: 13.5px; }

/* ---------- 信任数据横幅 ---------- */
.trust-banner { background: var(--ink); color: #fff; padding: 64px 0; }
.trust-banner .container { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; text-align: center; }
.trust-item b { font-size: 40px; color: var(--gold); display: block; line-height: 1.3; }
.trust-item span { color: rgba(255, 255, 255, .72); font-size: 14px; }

/* ---------- CTA ---------- */
.cta { background: linear-gradient(120deg, var(--gold) 0%, #d9bc85 100%); color: var(--ink); }
.cta .container { display: flex; align-items: center; justify-content: space-between; gap: 32px; padding: 52px 0; flex-wrap: wrap; }
.cta h2 { font-size: 28px; letter-spacing: 1px; margin-bottom: 6px; }
.cta p { opacity: .85; font-size: 15px; }

/* ---------- FAQ 手风琴 ---------- */
.faq-item { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 14px; overflow: hidden; }
.faq-item summary {
  list-style: none; cursor: pointer; padding: 20px 26px; font-size: 16px; font-weight: 600; color: var(--ink);
  display: flex; align-items: center; gap: 12px; transition: var(--transition);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::before { content: "Q"; width: 28px; height: 28px; flex: 0 0 28px; border-radius: 50%; background: var(--gold-soft); color: var(--gold-dark); display: inline-flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; }
.faq-item summary:hover { background: var(--gold-soft); }
.faq-item[open] summary { border-bottom: 1px solid var(--line); }
.faq-item .faq-body { padding: 20px 26px 24px; color: var(--gray-dark); line-height: 2; font-size: 14.5px; }
.faq-item .faq-body::before { content: "A"; color: var(--gold-dark); font-weight: 700; margin-right: 10px; }
.faq-item .faq-body p { margin: 0 0 12px; }
.faq-item .faq-body ol, .faq-item .faq-body ul { margin: 0 0 12px; padding-left: 22px; }
.faq-item .faq-body li { margin-bottom: 6px; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--ink); color: rgba(255, 255, 255, .7); font-size: 13.5px; }
.footer-main { padding: 64px 0 44px; display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.4fr; gap: 44px; }
.footer-main h4 { color: #fff; font-size: 16px; margin-bottom: 20px; letter-spacing: 1px; position: relative; padding-bottom: 10px; }
.footer-main h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 30px; height: 2px; background: var(--gold); }
.footer-main .brand-row { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.footer-main .brand-row img { height: 42px; }
.footer-main p { line-height: 2; }
.footer-links li { margin-bottom: 10px; }
.footer-links a:hover { color: var(--gold); padding-left: 4px; }
.footer-contact li { display: flex; gap: 12px; margin-bottom: 14px; line-height: 1.8; }
.footer-contact .label { color: var(--gold); flex-shrink: 0; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .1); padding: 20px 0; text-align: center; font-size: 13px; color: rgba(255, 255, 255, .45); }
.footer-bottom a { color: var(--gold); }

/* ---------- 页面主体布局（内页） ---------- */
.page-main { padding: 60px 0 84px; }
.layout-2col { display: grid; grid-template-columns: 260px 1fr; gap: 40px; }
.sidebar { align-self: start; position: sticky; top: 100px; }
.side-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; margin-bottom: 24px; }
.side-card .title { background: var(--ink); color: #fff; padding: 14px 20px; font-size: 15px; letter-spacing: 1px; }
.side-card ul li { border-bottom: 1px solid var(--line); }
.side-card ul li:last-child { border-bottom: none; }
.side-card ul a { display: block; padding: 13px 20px; color: #555; font-size: 14px; }
.side-card ul a:hover, .side-card ul a.active { background: var(--gold-soft); color: var(--gold-dark); padding-left: 26px; }
.side-contact { background: linear-gradient(150deg, var(--ink), #333a5e); color: #fff; padding: 26px 22px; border-radius: var(--radius); }
.side-contact h4 { font-size: 16px; margin-bottom: 14px; color: var(--gold); }
.side-contact p { font-size: 13.5px; line-height: 2; }
.side-contact .tel { font-size: 20px; color: var(--gold); font-weight: 700; margin-top: 8px; display: block; }

.content-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 40px; }
.content-card h2 { font-size: 24px; color: var(--ink); margin: 28px 0 16px; padding-left: 14px; border-left: 4px solid var(--gold); }
.content-card h2:first-child { margin-top: 0; }
.content-card h3 { font-size: 18px; color: var(--ink); margin: 22px 0 12px; }
.content-card p { margin-bottom: 14px; line-height: 2; color: #444; }
.content-card ul.list { margin: 12px 0 18px; padding-left: 4px; }
.content-card ul.list li { padding: 8px 0 8px 26px; position: relative; line-height: 1.9; color: #444; }
.content-card ul.list li::before { content: ""; position: absolute; left: 6px; top: 17px; width: 8px; height: 8px; border-radius: 2px; background: var(--gold); transform: rotate(45deg); }

/* 案例详情四段式 */
.stage { display: grid; grid-template-columns: 120px 1fr; gap: 28px; padding: 26px 0; border-bottom: 1px dashed var(--line); }
.stage:last-of-type { border-bottom: none; }
.stage .stage-label { font-size: 15px; font-weight: 700; color: var(--gold-dark); display: flex; align-items: center; gap: 8px; height: 36px; }
.stage .stage-label .num { width: 30px; height: 30px; background: var(--gold); color: #fff; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; font-size: 14px; }
.stage .stage-body p { margin-bottom: 10px; }

/* 产品详情 */
.detail-hero { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.detail-hero .main-img { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #f5f5f3; }
.detail-hero .main-img img { width: 100%; }
.detail-info .detail-title, .detail-info h2 { font-size: 28px; color: var(--ink); margin-bottom: 16px; line-height: 1.4; }
.detail-info .desc { color: var(--gray-dark); line-height: 2; margin-bottom: 22px; }
.detail-info .meta { border-top: 1px solid var(--line); padding-top: 18px; }
.detail-info .meta li { display: flex; gap: 12px; padding: 8px 0; font-size: 14px; color: #444; }
.detail-info .meta .k { color: var(--gold-dark); font-weight: 600; min-width: 90px; }
.detail-actions { display: flex; gap: 14px; margin-top: 26px; flex-wrap: wrap; }
.spec-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 20px; }
.spec-list li { background: var(--bg); border-radius: var(--radius); padding: 14px 18px; display: flex; gap: 10px; font-size: 14px; }
.spec-list b { color: var(--ink); }

/* ---------- 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 36px; align-items: start; }
.contact-info-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; }
.contact-info-card h3 { font-size: 19px; color: var(--ink); margin-bottom: 20px; }
.contact-info-card li { display: flex; gap: 14px; padding: 13px 0; border-bottom: 1px dashed var(--line); font-size: 15px; }
.contact-info-card li:last-child { border-bottom: none; }
.contact-info-card .ico { width: 40px; height: 40px; border-radius: 10px; background: var(--gold-soft); color: var(--gold-dark); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.contact-info-card .ico svg { width: 20px; height: 20px; }
.contact-info-card .v { color: var(--ink); font-weight: 500; }
.form-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 36px; }
.form-card h3 { font-size: 21px; color: var(--ink); margin-bottom: 22px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-bottom: 18px; }
.form-group { display: flex; flex-direction: column; }
.form-group label { font-size: 13.5px; color: var(--gray-dark); margin-bottom: 8px; }
.form-group label .req { color: var(--accent); }
.form-group input, .form-group select, .form-group textarea {
  border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 16px; font-size: 14px;
  font-family: inherit; transition: var(--transition); background: var(--bg); outline: none;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--gold); background: #fff; box-shadow: 0 0 0 3px var(--gold-soft); }
.form-group textarea { min-height: 130px; resize: vertical; }
.form-tip { background: var(--gold-soft); color: var(--gold-dark); border-radius: var(--radius); padding: 12px 16px; font-size: 13px; margin-bottom: 18px; line-height: 1.8; }

/* 内页 tab 标签 */
.tabs { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 34px; }
.tabs a { padding: 10px 24px; border-radius: 999px; border: 1px solid var(--line); background: var(--white); color: #555; font-size: 14px; transition: var(--transition); }
.tabs a:hover { border-color: var(--gold); color: var(--gold-dark); }
.tabs a.active { background: var(--gold); color: var(--ink); border-color: var(--gold); font-weight: 600; }

/* 分页 */
.pagination-wrap { margin-top: 44px; }
.pagination { display: flex; justify-content: center; align-items: center; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; }
.pagination li { list-style: none; display: inline-flex; }
.pagination li a, .pagination li span { min-width: 40px; height: 40px; padding: 0 6px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid var(--line); border-radius: var(--radius); color: #555; background: var(--white); font-size: 14px; transition: var(--transition); box-sizing: border-box; }
.pagination li a:hover { background: var(--gold); color: var(--ink); border-color: var(--gold); font-weight: 700; }
.pagination li.active span { background: var(--gold); color: var(--ink); border-color: var(--gold); font-weight: 700; }
.pagination li.disabled span { color: #bbb; background: var(--bg); border-color: var(--line); cursor: not-allowed; }

/* 文章正文 */
.article-title { font-size: 26px; line-height: 1.5; color: var(--ink); margin-bottom: 10px; }
.article-meta { color: var(--gray-dark); font-size: 13px; padding-bottom: 20px; margin-bottom: 24px; border-bottom: 1px solid var(--line); display: flex; gap: 24px; flex-wrap: wrap; }
.article-body img { border-radius: var(--radius); margin: 18px 0; }

/* 详情正文大图 */
.content-img { margin: 22px 0; }
.content-img img { width: 100%; border-radius: var(--radius); border: 1px solid var(--line); }

/* 相册网格（案例/产品多图） */
.detail-gallery { margin: 22px 0; }
.detail-gallery .dg-viewport { position: relative; background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.detail-gallery .dg-track { display: flex; transition: transform .45s ease; }
.detail-gallery .dg-slide { flex: 0 0 100%; margin: 0; }
.detail-gallery .dg-slide img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; display: block; }
.detail-gallery .dg-arrow { position: absolute; top: 50%; transform: translateY(-50%); width: 42px; height: 42px; border: none; border-radius: 50%; background: rgba(15,18,38,.45); color: #fff; font-size: 16px; line-height: 1; cursor: pointer; display: flex; align-items: center; justify-content: center; z-index: 2; transition: background var(--transition); }
.detail-gallery .dg-arrow:hover { background: rgba(15,18,38,.78); }
.detail-gallery .dg-prev { left: 14px; }
.detail-gallery .dg-next { right: 14px; }
.detail-gallery .dg-thumbs { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
.detail-gallery .dg-thumb { width: 78px; height: 58px; padding: 0; border: 2px solid transparent; border-radius: 8px; overflow: hidden; cursor: pointer; background: none; }
.detail-gallery .dg-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.detail-gallery .dg-thumb.active { border-color: rgba(201, 164, 103, 1); }
.detail-gallery.single .dg-arrow, .detail-gallery.single .dg-thumbs { display: none; }

/* 新闻列表行 */
.news-row { display: flex; gap: 20px; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; margin-bottom: 18px; transition: var(--transition); }
.news-row:hover { box-shadow: var(--shadow); border-color: rgba(201, 164, 103, .45); }
.news-row h3 a:hover { color: var(--gold-dark); }

/* 表单提交成功提示 */
.form-success { display: none; background: #e8f5e9; color: #2e7d32; border: 1px solid #a5d6a7; border-radius: var(--radius); padding: 12px 16px; margin-bottom: 18px; font-size: 14px; }

/* GEO 引用提示块 */
.geo-callout { background: linear-gradient(120deg, var(--gold-soft), rgba(239, 237, 212, .6)); border: 1px solid rgba(201, 164, 103, .4); border-radius: var(--radius); padding: 18px 22px; font-size: 13.5px; color: var(--gray-dark); margin: 20px 0; line-height: 1.9; }
.geo-callout b { color: var(--gold-dark); }

/* 空态/占位说明 */
.placeholder-note { background: var(--cream); border: 1px dashed var(--gold); color: var(--gray-dark); border-radius: var(--radius); padding: 2px 8px; font-size: 12.5px; }

/* ---------- 移动端底部快捷导航（默认隐藏，仅小屏显示） ---------- */
.mobile-nav { display: none; }

/* ---------- PC 端右侧悬浮在线客服（默认显示，仅 PC 端；对应源站 .kf） ---------- */
.kf { width: 208px; position: fixed; right: -208px; top: 80px; z-index: 9; transition: right .35s ease; }
.kf.open { right: 20px; }
.kf .kt-top {
  height: 40px; line-height: 40px; background: url('/static/images/kf/kefu.png') 12px center no-repeat #dc001d;
  background-size: auto 20px; padding-left: 46px; font-size: 14px; color: #fff;
}
.kf .kt-top span { width: 18px; height: 16px; float: right; position: relative; margin: 10px 10px 0 0; cursor: pointer; transition: .5s; }
.kf .kt-top span:hover { transform: rotate(90deg); }
.kf .kt-top span b { width: 100%; height: 2px; background: #fff; display: block; position: absolute; top: 50%; left: 0; }
.kf .kt-top span b:first-child { transform: rotate(45deg); }
.kf .kt-top span b:last-child { transform: rotate(-45deg); }
.kf .con { overflow: hidden; background: #fff; }
.kf .con h5 {
  height: 26px; line-height: 26px; margin-top: 12px; background: url('/static/images/kf/lianxi.png') 16px center no-repeat;
  padding-left: 45px; color: #666; font-size: 14px; font-weight: normal;
}
.kf .contact { margin-top: 1px; }
.kf .contact p { height: 26px; line-height: 26px; color: #666; font-size: 14px; padding-left: 22px; margin: 0; }
.kf .contact p:nth-child(2n) { padding-left: 32px; }
.kf .con h5.qr-icon { background: url('/static/images/kf/erweima.png') 16px center no-repeat; }
.kf .con .qr { margin-top: 10px; padding-left: 40px; }
.kf .con .qr img { width: 110px; height: 110px; }
.kf .backTop {
  width: 100%; height: 40px; margin-top: 10px; background: url('/static/images/kf/huidaodingbu.png') center center no-repeat #dc001d;
  background-size: 18px auto; cursor: pointer;
}
.kf-side { padding: 18px 10px 10px; background: #dc001d; position: absolute; top: 50%; transform: translateY(-50%); left: -34px; cursor: pointer; }
.kf-side b { display: block; color: #fff; line-height: 18px; font-size: 14px; font-weight: normal; }
.kf-side span.arrow {
  width: 12px; height: 12px; background: url('/static/images/kf/jt-1.png') no-repeat; background-size: auto 12px; display: block; margin-top: 10px;
}
.kf-side span.on { background: url('/static/images/kf/jt-2.png') no-repeat; background-size: auto 12px; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .kf { display: none; }
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .prod-grid { grid-template-columns: repeat(3, 1fr); }
  .case-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .detail-hero { grid-template-columns: 1fr; }
  .layout-2col { grid-template-columns: 1fr; }
  .sidebar { position: static; display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
  .hero-content h1 { font-size: 38px; }
}
@media (max-width: 768px) {
  .topbar .slogan { display: none; }
  .nav-toggle { display: flex; }
  .nav {
    display: none; position: absolute; top: 78px; left: 0; right: 0; background: var(--white);
    border-bottom: 1px solid var(--line); box-shadow: var(--shadow-lg); flex-direction: column; align-items: stretch; padding: 10px 0;
  }
  .nav.open { display: flex; }
  .nav > li > a { padding: 14px 22px; }
  .nav > li > a::after { display: none; }
  .nav > li:hover .dropdown { position: static; display: block; box-shadow: none; border: none; border-left: 2px solid var(--gold); margin-left: 22px; }
  .hero { min-height: 520px; }
  .hero-content h1 { font-size: 30px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 16px; padding: 22px; }
  .hero-stats .divider { display: none; }
  .hero-arrow { display: none; }
  .hero-dots { bottom: 18px; }
  .cat-grid, .prod-grid, .case-grid, .feature-grid, .steps { grid-template-columns: 1fr; }
  .trust-banner .container { grid-template-columns: repeat(2, 1fr); gap: 26px; }
  .sec { padding: 56px 0; }
  .inner-banner h1 { font-size: 26px; }
  .footer-main { grid-template-columns: 1fr; gap: 32px; }
  .form-row, .contact-grid { grid-template-columns: 1fr; }
  .stage { grid-template-columns: 1fr; gap: 10px; }
  .content-card { padding: 24px; }
  .sidebar { display: block; }
  .cta .container { padding: 40px 0; }

  /* 底部快捷导航：小屏展示，并为页面底部预留空间，避免遮挡内容 */
  body { padding-bottom: calc(56px + env(safe-area-inset-bottom)); }
  .mobile-nav {
    display: flex; position: fixed; left: 0; right: 0; bottom: 0; z-index: 90;
    background: rgba(255, 255, 255, .98); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
    border-top: 1px solid var(--line); box-shadow: 0 -4px 18px rgba(28, 31, 54, .08);
    padding-bottom: env(safe-area-inset-bottom);
  }
  .mobile-nav a {
    flex: 1 1 25%; display: flex; flex-direction: column; align-items: center; justify-content: center;
    gap: 3px; padding: 8px 0 7px; font-size: 11.5px; color: var(--gray-dark);
  }
  .mobile-nav a svg { width: 21px; height: 21px; }
  .mobile-nav a.active, .mobile-nav a:active { color: var(--gold-dark); }
}