/* =====================================================
   深圳市隆鑫发精密五金有限公司 官网样式
   纯静态 · 响应式 · 无任何构建依赖
   ===================================================== */
:root {
  --primary: #0f4c95;
  --primary-dark: #0c3a72;
  --navy: #0c2e52;
  --accent: #e8a33d;
  --text: #1f2937;
  --muted: #64748b;
  --bg-soft: #f5f7fa;
  --border: #e2e8f0;
  --radius: 10px;
  --shadow: 0 4px 20px rgba(12, 46, 82, .08);
  --shadow-hover: 0 12px 32px rgba(12, 46, 82, .16);
  --maxw: 1200px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: #fff;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* ---------- 顶部信息条 ---------- */
.topbar {
  background: var(--navy);
  color: #cddcea;
  font-size: 13px;
  padding: 6px 0;
}
.topbar .container { display: flex; justify-content: space-between; align-items: center; }
.topbar span + span { margin-left: 18px; }

/* ---------- 导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand img { height: 44px; width: auto; }
.brand-text { line-height: 1.3; }
.brand-text strong { display: block; font-size: 17px; color: var(--navy); letter-spacing: 1px; }
.brand-text small { font-size: 11px; color: var(--muted); letter-spacing: .5px; }
.main-nav ul { display: flex; gap: 6px; }
.main-nav a {
  display: block; padding: 10px 18px; font-size: 16px; font-weight: 500;
  color: var(--text); border-radius: 6px; transition: all .2s;
}
.main-nav a:hover { color: var(--primary); background: var(--bg-soft); }
.main-nav a.active { color: var(--primary); font-weight: 600; position: relative; }
.main-nav a.active::after {
  content: ""; position: absolute; left: 18px; right: 18px; bottom: 4px;
  height: 3px; border-radius: 2px; background: var(--primary);
}
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--navy); margin: 5px 0; transition: .3s; }

/* ---------- Hero ---------- */
.hero {
  position: relative; color: #fff; overflow: hidden;
  background: #0f4c95; /* 图片加载前的兜底色 */
  padding: 120px 0 140px;
}
/* --- 轮播背景层 --- */
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-slide {
  position: absolute; inset: 0; opacity: 0;
  transition: opacity .9s ease;
}
.hero-slide::before {
  content: ""; position: absolute; inset: 0;
  background-position: center; background-size: cover; background-repeat: no-repeat;
}
.hero-slide.s1::before { background-image: url("../images/hero-machining.jpg"); }
.hero-slide.s2::before { background-image: url("../images/products/newenergy-08.jpg"); }
.hero-slide.s3::before { background-image: url("../images/hero-terminals.jpg"); }
.hero-slide::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(9, 30, 58, .92) 0%, rgba(15, 76, 149, .82) 55%, rgba(15, 76, 149, .55) 100%);
}
.hero-slide.is-active { opacity: 1; z-index: 1; }
/* --- 轮播文案层 --- */
.hero-content { position: relative; z-index: 2; }
.hero-copy { display: none; }
.hero-copy.is-active { display: block; animation: heroFade .8s ease; }
@keyframes heroFade { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
/* --- 圆点导航 --- */
.hero-dots { display: flex; gap: 10px; margin-top: 30px; }
.hero-dots button {
  width: 12px; height: 12px; border-radius: 50%; padding: 0; cursor: pointer;
  border: 1px solid rgba(255,255,255,.75); background: transparent; transition: all .25s;
}
.hero-dots button.is-active { background: var(--accent); border-color: var(--accent); transform: scale(1.15); }
/* --- 左右箭头 --- */
.hero-arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 3;
  width: 46px; height: 46px; border-radius: 50%; cursor: pointer;
  border: 1px solid rgba(255,255,255,.5); background: rgba(9,30,58,.35);
  color: #fff; font-size: 26px; line-height: 1; transition: all .25s;
}
.hero-arrow:hover { background: var(--accent); border-color: var(--accent); color: #3a2703; }
.hero-arrow.prev { left: 18px; }
.hero-arrow.next { right: 18px; }
.hero-kicker {
  display: inline-block; border: 1px solid rgba(255,255,255,.4); border-radius: 999px;
  padding: 4px 16px; font-size: 14px; letter-spacing: 2px; margin-bottom: 22px; color: #ffe9c4;
}
.hero h1, .hero .hero-title { font-size: 44px; line-height: 1.3; letter-spacing: 2px; margin-bottom: 10px; }
.hero h2, .hero .hero-sub { font-size: 22px; font-weight: 400; color: #d8e6f5; margin-bottom: 18px; letter-spacing: 1px; }
.hero p { max-width: 720px; color: #e6eef7; font-size: 16px; margin-bottom: 34px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.btn {
  display: inline-block; padding: 13px 34px; border-radius: 6px; font-size: 16px;
  transition: all .25s; cursor: pointer; border: 1px solid transparent;
}
.btn-primary { background: var(--accent); color: #3a2703; font-weight: 600; }
.btn-primary:hover { background: #f4b95c; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(232,163,61,.35); }
.btn-ghost { border-color: rgba(255,255,255,.6); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,.12); }

/* ---------- 数据条 ---------- */
.stats-band { background: var(--primary); color: #fff; margin-top: -56px; position: relative; z-index: 5; box-shadow: var(--shadow); }
.stats-band .container { display: grid; grid-template-columns: repeat(4, 1fr); padding-top: 34px; padding-bottom: 30px; }
.stat { text-align: center; }
.stat b { display: block; font-size: 36px; line-height: 1.2; }
.stat b i { font-style: normal; font-size: 20px; margin-left: 2px; }
.stat span { font-size: 14px; color: #cfe0f2; }

/* ---------- 通用 Section ---------- */
.section { padding: 84px 0; }
.section.alt { background: var(--bg-soft); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 52px; }
.section-head .en { font-size: 13px; letter-spacing: 4px; color: var(--accent); text-transform: uppercase; font-weight: 600; }
.section-head h1, .section-head h2 { font-size: 32px; color: var(--navy); margin: 8px 0 12px; letter-spacing: 1px; }
.section-head p { color: var(--muted); }

/* ---------- 关于我们 ---------- */
.about-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center; }
.about-grid h3 { font-size: 24px; color: var(--navy); margin-bottom: 16px; }
.about-grid p { color: #475569; margin-bottom: 14px; text-align: justify; }
.about-photos { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.about-photos figure { position: relative; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.about-photos img { height: 100%; width: 100%; object-fit: cover; transition: transform .4s; }
.about-photos figure:hover img { transform: scale(1.05); }
.about-photos figcaption {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 8px 12px;
  background: linear-gradient(transparent, rgba(9,30,58,.75)); color: #fff; font-size: 13px;
}
.about-points { margin: 20px 0 26px; }
.about-points li { padding-left: 26px; position: relative; margin-bottom: 8px; color: #475569; }
.about-points li::before {
  content: "✓"; position: absolute; left: 0; top: 0;
  width: 18px; height: 18px; border-radius: 50%; background: var(--primary);
  color: #fff; font-size: 12px; line-height: 18px; text-align: center; margin-top: 5px;
}

/* ---------- 产品分类卡片 ---------- */
.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.cat-card {
  background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow);
  transition: all .3s; border: 1px solid var(--border); display: flex; flex-direction: column;
}
.cat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: transparent; }
.cat-card .thumb { height: 200px; overflow: hidden; background: #f1f5f9; }
.cat-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.cat-card:hover .thumb img { transform: scale(1.06); }
.cat-card .body { padding: 22px 24px 26px; flex: 1; display: flex; flex-direction: column; }
.cat-card h3 { font-size: 19px; color: var(--navy); margin-bottom: 8px; }
.cat-card p { font-size: 14px; color: var(--muted); flex: 1; }
.cat-card .more { margin-top: 16px; font-size: 14px; color: var(--primary); font-weight: 500; }
.cat-card .more:hover { color: var(--accent); }

/* ---------- 产品筛选与网格 ---------- */
.filter-tabs { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 40px; }
.filter-tabs button {
  padding: 9px 22px; border-radius: 999px; border: 1px solid var(--border);
  background: #fff; color: var(--text); font-size: 15px; cursor: pointer; transition: all .2s;
}
.filter-tabs button:hover { border-color: var(--primary); color: var(--primary); }
.filter-tabs button.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.product-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; cursor: pointer; transition: all .25s;
}
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.product-card .thumb { height: 180px; background: #f8fafc; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.product-card .thumb img { width: 100%; height: 100%; object-fit: contain; transition: transform .3s; }
.product-card:hover .thumb img { transform: scale(1.05); }
.product-card .name { padding: 13px 16px; font-size: 14px; color: var(--text); text-align: center; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.product-card .tag { display: inline-block; margin: 0 16px 14px; font-size: 12px; color: var(--primary); background: #eaf2fb; border-radius: 4px; padding: 2px 8px; }

/* ---------- 优势 ---------- */
.adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.adv-item { background: #fff; border-radius: var(--radius); padding: 30px 24px; box-shadow: var(--shadow); border-top: 3px solid var(--primary); transition: all .3s; }
.adv-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.adv-item .icon { font-size: 30px; margin-bottom: 14px; }
.adv-item h3 { font-size: 17px; color: var(--navy); margin-bottom: 8px; }
.adv-item p { font-size: 14px; color: var(--muted); }

/* ---------- 设备 ---------- */
.equip-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.equip-card { background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); border: 1px solid var(--border); }
.equip-card .thumb { height: 220px; background: #fff; display: flex; align-items: center; justify-content: center; overflow: hidden; padding: 12px; }
.equip-card .thumb img { max-height: 100%; object-fit: contain; }
.equip-card .body { padding: 16px 20px 20px; text-align: center; }
.equip-card h3 { font-size: 16px; color: var(--navy); }
.cert-band { margin-top: 46px; background: linear-gradient(120deg, var(--navy), var(--primary)); border-radius: var(--radius); color: #fff; padding: 36px 40px; display: flex; gap: 30px; align-items: center; flex-wrap: wrap; }
.cert-band .badge {
  flex: none; width: 86px; height: 86px; border-radius: 50%; border: 3px solid var(--accent);
  display: flex; align-items: center; justify-content: center; flex-direction: column; color: var(--accent); font-weight: 700;
}
.cert-band .badge b { font-size: 20px; line-height: 1.1; }
.cert-band .badge small { font-size: 10px; letter-spacing: 1px; }
.cert-band h3 { font-size: 20px; margin-bottom: 8px; }
.cert-band p { color: #d8e6f5; font-size: 15px; }

/* ---------- 联系我们 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 44px; }
.contact-info-card { background: var(--navy); color: #fff; border-radius: var(--radius); padding: 36px; }
.contact-info-card h3 { font-size: 20px; margin-bottom: 22px; color: #fff; }
.contact-info-card li { display: flex; gap: 14px; margin-bottom: 20px; font-size: 15px; color: #d8e6f5; }
.contact-info-card .ic {
  flex: none; width: 40px; height: 40px; border-radius: 8px; background: rgba(255,255,255,.1);
  display: flex; align-items: center; justify-content: center; font-size: 18px;
}
.inquiry-form { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 36px; box-shadow: var(--shadow); }
.inquiry-form h3 { font-size: 20px; color: var(--navy); margin-bottom: 6px; }
.inquiry-form .sub { font-size: 13px; color: var(--muted); margin-bottom: 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 14px; font-weight: 500; margin-bottom: 6px; color: var(--text); }
.form-group label em { color: #dc2626; font-style: normal; margin-left: 2px; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 11px 14px; border: 1px solid var(--border); border-radius: 6px;
  font-size: 14px; font-family: inherit; transition: border-color .2s; background: #fbfdff;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(15,76,149,.1); }
.form-group .err { display: none; font-size: 12px; color: #dc2626; margin-top: 4px; }
.form-group.invalid input, .form-group.invalid textarea { border-color: #dc2626; }
.form-group.invalid .err { display: block; }
.form-tip { display: none; margin-top: 16px; padding: 12px 16px; border-radius: 6px; background: #fef3c7; border: 1px solid #fcd34d; color: #92400e; font-size: 13px; }
.form-tip.show { display: block; }

/* ---------- CTA ---------- */
.cta-band { background: linear-gradient(110deg, var(--primary-dark), var(--primary)); color: #fff; text-align: center; padding: 70px 20px; }
.cta-band h2 { font-size: 30px; letter-spacing: 2px; margin-bottom: 10px; }
.cta-band p { color: #cfe0f2; margin-bottom: 28px; }

/* ---------- 页脚 ---------- */
.site-footer { background: #0a223d; color: #9db4cc; font-size: 14px; }
.footer-main { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding: 60px 0 44px; }
.footer-main h4 { color: #fff; font-size: 16px; margin-bottom: 18px; }
.footer-main li { margin-bottom: 10px; }
.footer-main a:hover { color: #fff; }
.footer-about img { background: #fff; border-radius: 50%; padding: 3px; height: 64px; width: 64px; margin-bottom: 16px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 18px 0; text-align: center; font-size: 13px; color: #6b85a3; }
.footer-bottom a { color: #8fb3d9; text-decoration: none; }
.footer-bottom a:hover { color: #cfe2f5; text-decoration: underline; }

/* ---------- 灯箱 ---------- */
.lightbox {
  position: fixed; inset: 0; z-index: 200; display: none;
  background: rgba(8, 20, 38, .88); align-items: center; justify-content: center; padding: 40px;
}
.lightbox.open { display: flex; }
.lightbox figure { max-width: min(860px, 92vw); text-align: center; }
.lightbox img { max-height: 76vh; margin: 0 auto; border-radius: 8px; background: #fff; padding: 10px; }
.lightbox figcaption { color: #e2ecf7; margin-top: 14px; font-size: 15px; }
.lightbox .lb-close, .lightbox .lb-prev, .lightbox .lb-next {
  position: absolute; background: rgba(255,255,255,.12); border: none; color: #fff;
  width: 44px; height: 44px; border-radius: 50%; font-size: 20px; cursor: pointer; transition: background .2s;
}
.lightbox .lb-close:hover, .lightbox .lb-prev:hover, .lightbox .lb-next:hover { background: rgba(255,255,255,.28); }
.lightbox .lb-close { top: 24px; right: 28px; }
.lightbox .lb-prev { left: 24px; top: 50%; transform: translateY(-50%); }
.lightbox .lb-next { right: 24px; top: 50%; transform: translateY(-50%); }

/* ---------- 回到顶部 ---------- */
.back-top {
  position: fixed; right: 26px; bottom: 30px; z-index: 90; width: 46px; height: 46px;
  border-radius: 50%; border: none; background: var(--primary); color: #fff; font-size: 18px;
  cursor: pointer; opacity: 0; pointer-events: none; transition: all .3s; box-shadow: var(--shadow-hover);
}
.back-top.show { opacity: 1; pointer-events: auto; }
.back-top:hover { background: var(--primary-dark); }

/* ---------- 浮动咨询 ---------- */
.float-contact {
  position: fixed; right: 26px; bottom: 92px; z-index: 90;
  background: var(--accent); color: #3a2703; border-radius: 999px; padding: 10px 20px;
  font-size: 14px; font-weight: 600; box-shadow: 0 8px 22px rgba(232,163,61,.4);
}
.float-contact:hover { transform: translateY(-2px); }

/* ---------- 滚动显现 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  .hero h1, .hero .hero-title { font-size: 32px; }
  .hero { padding: 80px 0 110px; }
  .stats-band .container { grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .cat-grid, .equip-grid { grid-template-columns: repeat(2, 1fr); }
  .product-grid { grid-template-columns: repeat(3, 1fr); }
  .adv-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .topbar .container span:last-child { display: none; }
  .nav-toggle { display: block; }
  .main-nav {
    position: fixed; top: 72px; left: 0; right: 0; background: #fff;
    border-bottom: 1px solid var(--border); max-height: 0; overflow: hidden; transition: max-height .35s;
    box-shadow: var(--shadow);
  }
  .main-nav.open { max-height: 420px; }
  .main-nav ul { flex-direction: column; padding: 10px 20px 20px; gap: 2px; }
  .main-nav a.active::after { display: none; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .cat-grid, .equip-grid, .adv-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr; gap: 28px; }
  .section { padding: 60px 0; }
  .section-head h2 { font-size: 26px; }
  .float-contact { padding: 8px 14px; font-size: 13px; right: 16px; }
  .back-top { right: 16px; }
  .hero h1, .hero .hero-title { font-size: 27px; }
  .hero h2, .hero .hero-sub { font-size: 17px; }
  .hero-arrow { display: none; }
  .hero-dots { margin-top: 24px; }
}

/* ---------- 感谢页 ---------- */
.thanks-hero { text-align: center; padding: 24px 0 8px; }
.check-badge {
  width: 96px; height: 96px; border-radius: 50%;
  background: linear-gradient(135deg, #1f7a4d, #2ecc71);
  color: #fff; font-size: 50px; font-weight: 700; line-height: 96px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 24px; box-shadow: 0 12px 30px rgba(46, 204, 113, .35);
}
.thanks-hero h1 { font-size: 32px; color: #10243e; margin-bottom: 14px; }
.thanks-hero p { color: #5b6b7e; max-width: 580px; margin: 0 auto 8px; font-size: 16px; line-height: 1.8; }
.thanks-hero p strong, .thanks-hero a { color: #16407a; }
.thanks-hero .thanks-sub { font-size: 15px; color: #7a8aa0; }
.thanks-actions { margin-top: 30px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.thanks-meta { margin-top: 32px; font-size: 14px; color: #7a8aa0; letter-spacing: .5px; }
@media (max-width: 640px) {
  .thanks-hero h1 { font-size: 25px; }
  .check-badge { width: 80px; height: 80px; font-size: 42px; line-height: 80px; }
  .thanks-actions .btn { width: 100%; text-align: center; }
}

/* ---------- 文章模块（列表 + 详情） ---------- */
.subhero {
  background: linear-gradient(110deg, var(--navy), var(--primary));
  color: #fff; padding: 64px 0 52px;
}
.subhero .en { font-size: 13px; letter-spacing: 4px; color: var(--accent); text-transform: uppercase; font-weight: 600; }
.subhero h1 { font-size: 34px; letter-spacing: 1px; margin: 10px 0 12px; }
.subhero p { color: #cfe0f2; max-width: 760px; }

.breadcrumb { font-size: 13px; color: var(--muted); padding: 20px 0 0; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb span { margin: 0 8px; color: #cbd5e1; }

.article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.article-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; transition: all .3s; display: flex; flex-direction: column;
}
.article-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: transparent; }
.article-card .thumb { height: 190px; overflow: hidden; background: #f1f5f9; }
.article-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.article-card:hover .thumb img { transform: scale(1.05); }
.article-card .cat {
  align-self: flex-start; margin: 18px 0 0 22px; font-size: 12px; color: #fff;
  background: var(--primary); border-radius: 4px; padding: 3px 10px;
}
.article-card h3 { font-size: 18px; color: var(--navy); margin: 12px 22px 0; line-height: 1.5; }
.article-card p.ex { font-size: 14px; color: var(--muted); margin: 10px 22px 0; flex: 1; }
.article-card .meta { font-size: 12px; color: #94a3b8; margin: 14px 22px 20px; }

.article-detail { max-width: 860px; margin: 0 auto; }
.article-meta-bar {
  display: flex; gap: 18px; flex-wrap: wrap; color: var(--muted); font-size: 14px;
  border-bottom: 1px solid var(--border); padding-bottom: 16px; margin-bottom: 8px;
}
.article-meta-bar a:hover { color: var(--primary); }
.article-title { font-size: 30px; color: var(--navy); line-height: 1.4; margin: 14px 0 22px; letter-spacing: .5px; }

.prose { font-size: 16px; }
.prose h2 {
  font-size: 23px; color: var(--navy); margin: 36px 0 14px; padding-left: 14px;
  border-left: 4px solid var(--accent); line-height: 1.4;
}
.prose h3 { font-size: 19px; color: var(--navy); margin: 26px 0 10px; }
.prose p { color: #374151; margin-bottom: 14px; text-align: justify; }
.prose ul { margin: 0 0 16px 22px; color: #374151; }
.prose li { margin-bottom: 8px; list-style: disc; }
.prose strong { color: var(--navy); }
.prose .infobox {
  background: var(--bg-soft); border-left: 4px solid var(--primary);
  padding: 14px 18px; border-radius: 8px; margin: 18px 0; color: #334155; line-height: 1.7;
}
.prose table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 14px; }
.prose th, .prose td { border: 1px solid var(--border); padding: 10px 12px; text-align: left; }
.prose th { background: var(--bg-soft); color: var(--navy); }

.faq-section { margin-top: 38px; }
.faq-item { border: 1px solid var(--border); border-radius: 8px; margin-bottom: 12px; overflow: hidden; }
.faq-q {
  padding: 14px 18px; font-weight: 600; color: var(--navy); cursor: pointer;
  background: #fff; display: flex; justify-content: space-between; align-items: center; gap: 12px;
}
.faq-q:hover { background: var(--bg-soft); }
.faq-q .chev { transition: transform .3s; color: var(--primary); }
.faq-item.open .faq-q .chev { transform: rotate(180deg); }
.faq-a { padding: 0 18px; max-height: 0; overflow: hidden; transition: max-height .3s ease; color: #475569; }
.faq-item.open .faq-a { max-height: 500px; padding-bottom: 16px; }
.faq-a p { margin: 0; }

.share-cta {
  background: linear-gradient(110deg, var(--navy), var(--primary)); color: #fff;
  border-radius: var(--radius); padding: 28px 32px; margin: 38px 0; text-align: center;
}
.share-cta h3 { font-size: 20px; margin-bottom: 8px; color: #fff; }
.share-cta p { color: #cfe0f2; margin-bottom: 20px; }

.rel-box { margin-bottom: 20px; }
.rel-box h3 { font-size: 20px; color: var(--navy); margin-bottom: 14px; }
.rel-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.rel-list a {
  display: block; border: 1px solid var(--border); border-radius: 8px; padding: 14px 16px;
  color: var(--navy); transition: all .2s; line-height: 1.5;
}
.rel-list a:hover { border-color: var(--primary); background: var(--bg-soft); }
.rel-list small { color: var(--muted); }

/* 文章模块响应式 */
@media (max-width: 960px) {
  .article-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .article-grid { grid-template-columns: 1fr; }
  .rel-list { grid-template-columns: 1fr; }
  .subhero h1 { font-size: 26px; }
  .article-title { font-size: 24px; }
}