/* =========================================================
   河马热升华打印机 · 企业展示网站
   设计系统 / Design Tokens
   ========================================================= */
:root {
  /* 品牌色 */
  --navy: #0E1B33;
  --navy-2: #14233F;
  --navy-3: #1E3257;
  --accent: #FF6A3D;          /* 热升华·暖橙（能量/热） */
  --accent-2: #FF8A5B;
  --teal: #1AA7B0;            /* 影像/水/色彩 */
  --teal-2: #2BC4CE;

  /* 中性色 */
  --bg: #F5F7FA;
  --surface: #FFFFFF;
  --ink: #16203A;
  --muted: #5A6478;
  --line: #E4E9F0;

  /* 圆角 / 阴影 */
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
  --shadow-sm: 0 4px 14px rgba(14, 27, 51, 0.06);
  --shadow-md: 0 12px 30px rgba(14, 27, 51, 0.10);
  --shadow-lg: 0 24px 60px rgba(14, 27, 51, 0.16);

  /* 排版 */
  --font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  --maxw: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  font-size: 16px;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { line-height: 1.25; margin: 0 0 .5em; color: var(--navy); font-weight: 800; letter-spacing: -.01em; }
p { margin: 0 0 1em; }
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section { padding: 88px 0; }
.section--tight { padding: 64px 0; }
.muted { color: var(--muted); }
.center { text-align: center; }

/* 按钮 */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 26px; border-radius: 999px; font-weight: 700;
  font-size: 15px; cursor: pointer; border: 1px solid transparent;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
  white-space: nowrap;
}
.btn--primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; box-shadow: 0 10px 24px rgba(255,106,61,.32); }
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(255,106,61,.42); }
.btn--ghost { background: rgba(255,255,255,.10); color: #fff; border-color: rgba(255,255,255,.28); }
.btn--ghost:hover { background: rgba(255,255,255,.18); }
.btn--dark { background: var(--navy); color: #fff; }
.btn--dark:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn--outline { background: #fff; color: var(--navy); border-color: var(--line); }
.btn--outline:hover { border-color: var(--accent); color: var(--accent); }

/* 标签 / 徽章 */
.eyebrow {
  display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .14em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 14px;
}
.tag {
  display: inline-block; padding: 4px 12px; border-radius: 999px;
  font-size: 12px; font-weight: 600; background: rgba(26,167,176,.12); color: var(--teal);
}

/* =========================================================
   顶部导航
   ========================================================= */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.82);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; color: var(--navy); font-size: 19px; }
.brand .logo { width: 38px; height: 38px; }
.brand small { display: block; font-size: 11px; font-weight: 600; color: var(--muted); letter-spacing: .12em; }
.nav-links { display: flex; align-items: center; gap: 30px; }
.nav-links a { font-size: 15px; font-weight: 600; color: var(--ink); position: relative; }
.nav-links a::after { content: ""; position: absolute; left: 0; bottom: -6px; width: 0; height: 2px; background: var(--accent); transition: width .2s ease; }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-cta { display: flex; align-items: center; gap: 14px; }
.phone-pill {
  display: inline-flex; align-items: center; gap: 8px; font-weight: 800; color: var(--accent);
  font-size: 15px; padding: 8px 16px; border-radius: 999px; background: rgba(255,106,61,.10);
}
.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.hamburger span { width: 24px; height: 2px; background: var(--navy); border-radius: 2px; transition: .2s; }

/* 移动端菜单 */
.mobile-menu { display: none; flex-direction: column; gap: 4px; padding: 12px 24px 20px; border-bottom: 1px solid var(--line); background: #fff; }
.mobile-menu.open { display: flex; }
.mobile-menu a { padding: 12px 4px; font-weight: 600; border-bottom: 1px solid var(--line); }
.mobile-menu .phone-pill { margin-top: 10px; align-self: flex-start; }

/* =========================================================
   Hero
   ========================================================= */
.hero {
  position: relative; overflow: hidden; color: #fff;
  background: radial-gradient(1200px 600px at 80% -10%, rgba(255,106,61,.28), transparent 60%),
              radial-gradient(900px 500px at 0% 100%, rgba(26,167,176,.22), transparent 55%),
              linear-gradient(135deg, var(--navy), var(--navy-2));
}
.hero::after {
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255,255,255,.06) 1px, transparent 1px);
  background-size: 22px 22px; opacity: .5; pointer-events: none;
}
.hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; padding: 96px 0 104px; }
.hero h1 { color: #fff; font-size: clamp(34px, 5vw, 56px); margin-bottom: 20px; }
.hero h1 .hl { background: linear-gradient(120deg, var(--accent-2), var(--teal-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.lead { font-size: 18px; color: rgba(255,255,255,.82); max-width: 520px; }
.hero-cta { display: flex; gap: 14px; margin-top: 30px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 36px; margin-top: 44px; }
.hero-stats .num { font-size: 30px; font-weight: 800; color: #fff; }
.hero-stats .lbl { font-size: 13px; color: rgba(255,255,255,.66); }
.hero-visual {
  position: relative; border-radius: var(--r-lg); padding: 26px;
  background: linear-gradient(160deg, rgba(255,255,255,.10), rgba(255,255,255,.03));
  border: 1px solid rgba(255,255,255,.18); box-shadow: var(--shadow-lg);
}
.hero-visual .badge-row { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; }
.hero-visual .brand-chip { font-size: 12px; font-weight: 700; padding: 6px 12px; border-radius: 999px; background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.18); }

/* =========================================================
   区块标题
   ========================================================= */
.section-head { max-width: 720px; margin: 0 auto 52px; text-align: center; }
.section-head h2 { font-size: clamp(26px, 3.4vw, 38px); }
.section-head p { color: var(--muted); font-size: 17px; }
.head-left { text-align: left; margin-left: 0; }

/* 特性网格 */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md); padding: 30px; box-shadow: var(--shadow-sm); transition: transform .2s ease, box-shadow .2s ease; }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.feature-card .ic { width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; background: linear-gradient(135deg, rgba(255,106,61,.14), rgba(26,167,176,.14)); margin-bottom: 18px; }
.feature-card h3 { font-size: 19px; margin-bottom: 8px; }
.feature-card p { color: var(--muted); font-size: 15px; margin: 0; }

/* 产品卡片 */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.product-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md);
  overflow: hidden; box-shadow: var(--shadow-sm); transition: transform .22s ease, box-shadow .22s ease;
  display: flex; flex-direction: column;
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.product-thumb { aspect-ratio: 4 / 3; position: relative; display: grid; place-items: center; background: linear-gradient(150deg, #eef2f7, #e3e9f2); }
.product-thumb .ph-label { position: absolute; bottom: 10px; left: 10px; right: 10px; font-size: 11px; color: #8a93a6; text-align: center; }
.product-thumb .cat-tag { position: absolute; top: 12px; left: 12px; }
.product-body { padding: 20px 22px 24px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.product-body h3 { font-size: 18px; margin: 0; }
.product-body .brand-line { font-size: 13px; color: var(--teal); font-weight: 700; }
.product-body p { font-size: 14px; color: var(--muted); margin: 0; flex: 1; }
.product-meta { display: flex; gap: 8px; flex-wrap: wrap; }
.spec-chip { font-size: 12px; color: var(--muted); background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 4px 10px; }
.product-foot { display: flex; align-items: center; justify-content: space-between; padding-top: 6px; }
.product-foot .price { font-weight: 800; color: var(--navy); }
.product-foot .price small { font-weight: 600; color: var(--muted); font-size: 12px; }

/* 产品列表筛选 */
.filter-bar { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; margin-bottom: 40px; }
.filter-btn { padding: 9px 20px; border-radius: 999px; border: 1px solid var(--line); background: #fff; font-weight: 600; cursor: pointer; font-size: 14px; color: var(--ink); transition: .18s; }
.filter-btn:hover { border-color: var(--accent); color: var(--accent); }
.filter-btn.active { background: var(--navy); color: #fff; border-color: var(--navy); }

/* 面包屑 */
.crumbs { font-size: 13px; color: var(--muted); padding: 22px 0 0; }
.crumbs a:hover { color: var(--accent); }

/* 产品详情 */
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.detail-gallery { display: grid; gap: 16px; }
.detail-main-img { aspect-ratio: 4/3; border-radius: var(--r-md); display: grid; place-items: center; background: linear-gradient(150deg, #eef2f7, #e3e9f2); position: relative; border: 1px solid var(--line); }
.detail-thumbs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.detail-thumbs .t { aspect-ratio: 1; border-radius: 12px; background: linear-gradient(150deg, #eef2f7, #e3e9f2); border: 1px solid var(--line); }
.detail-info h1 { font-size: 32px; margin-bottom: 6px; }
.detail-info .brand-line { color: var(--teal); font-weight: 700; margin-bottom: 16px; }
.detail-info .desc { color: var(--muted); }
.price-block { display: flex; align-items: baseline; gap: 10px; margin: 22px 0; padding: 18px 22px; background: var(--bg); border-radius: var(--r-md); border: 1px solid var(--line); }
.price-block .now { font-size: 30px; font-weight: 800; color: var(--accent); }
.price-block .note { font-size: 13px; color: var(--muted); }
.detail-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 8px; }

/* 规格表 */
.spec-table { width: 100%; border-collapse: collapse; margin-top: 14px; }
.spec-table th, .spec-table td { text-align: left; padding: 13px 16px; border-bottom: 1px solid var(--line); font-size: 15px; }
.spec-table th { width: 38%; color: var(--muted); font-weight: 600; background: var(--bg); }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: 0; }

/* 型号标识 */
.product-model { display: inline-flex; align-items: center; gap: 6px; margin: 6px 0 14px; padding: 5px 13px; background: rgba(226,84,42,.09); border: 1px solid rgba(226,84,42,.28); border-radius: 999px; color: var(--accent); font-size: 13px; letter-spacing: .02em; }
.product-model strong { font-weight: 800; font-size: 15px; }
.card-model { display: inline-block; margin-left: 6px; padding: 1px 9px; border-radius: 999px; background: rgba(226,84,42,.10); border: 1px solid rgba(226,84,42,.25); color: var(--accent); font-size: 12px; font-weight: 700; vertical-align: middle; }

/* 技术参数区（醒目） */
.spec-section { margin-top: 52px; padding: 30px 32px; background: linear-gradient(180deg,#fff,#fafbfd); border: 1px solid var(--line); border-radius: var(--r-md); box-shadow: 0 14px 34px -20px rgba(18,32,64,.22); }
.spec-section .section-title { font-size: 22px; font-weight: 800; margin: 0 0 20px; display: flex; align-items: center; gap: 11px; color: var(--navy); }
.spec-section .section-title::before { content: ""; width: 5px; height: 22px; border-radius: 3px; background: linear-gradient(180deg,var(--accent),var(--teal)); }
.spec-section .spec-table { margin-top: 0; border-radius: 12px; overflow: hidden; border: 1px solid var(--line); }
.spec-section .spec-table th { background: var(--navy); color: #fff; font-weight: 600; width: 30%; }
.spec-section .spec-table td { background: #fff; color: var(--ink); }
.spec-section .spec-table tbody tr:nth-child(even) td { background: #f5f8fc; }
.spec-section .spec-table th, .spec-section .spec-table td { padding: 15px 18px; font-size: 15px; border-bottom: 1px solid var(--line); }
.spec-section .spec-table tbody tr:last-child th, .spec-section .spec-table tbody tr:last-child td { border-bottom: 0; }
@media (max-width: 720px) { .spec-section { padding: 20px 16px; margin-top: 36px; } .spec-section .section-title { font-size: 19px; } }

/* 关于我们 */
.timeline { display: grid; gap: 22px; position: relative; margin-top: 20px; }
.timeline::before { content: ""; position: absolute; left: 14px; top: 6px; bottom: 6px; width: 2px; background: var(--line); }
.tl-item { display: grid; grid-template-columns: 36px 1fr; gap: 18px; align-items: start; }
.tl-dot { width: 28px; height: 28px; border-radius: 50%; background: var(--navy); color: #fff; display: grid; place-items: center; font-size: 12px; font-weight: 700; z-index: 1; }
.tl-item h4 { margin: 2px 0 4px; }
.tl-item p { color: var(--muted); margin: 0; font-size: 15px; }
.values { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 10px; }
.value-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md); padding: 26px; box-shadow: var(--shadow-sm); }
.value-card .ic { width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; background: linear-gradient(135deg, rgba(255,106,61,.14), rgba(26,167,176,.14)); margin-bottom: 14px; }
.value-card h3 { font-size: 17px; }
.value-card p { font-size: 14px; color: var(--muted); margin: 0; }

/* 联系我们 */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.info-list { display: grid; gap: 18px; margin-top: 8px; }
.info-item { display: flex; gap: 14px; align-items: flex-start; }
.info-item .ic { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: linear-gradient(135deg, rgba(255,106,61,.14), rgba(26,167,176,.14)); flex: none; }
.info-item h4 { margin: 0 0 2px; font-size: 16px; }
.info-item p { margin: 0; color: var(--muted); font-size: 15px; }
.info-item a { color: var(--accent); font-weight: 700; }

.form-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md); padding: 30px; box-shadow: var(--shadow-sm); }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; }
.field input, .field textarea, .field select {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: var(--r-sm);
  font-family: inherit; font-size: 15px; color: var(--ink); background: #fff; transition: border .15s, box-shadow .15s;
}
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(255,106,61,.14); }
.field textarea { resize: vertical; min-height: 120px; }
.form-note { font-size: 12px; color: var(--muted); margin-top: 10px; }
.map-ph { aspect-ratio: 16/7; border-radius: var(--r-md); background: linear-gradient(150deg, #e9eef5, #dde6f1); border: 1px solid var(--line); display: grid; place-items: center; color: #8a93a6; font-size: 14px; margin-top: 20px; }

/* CTA 区块 */
.cta-band { background: linear-gradient(135deg, var(--navy), var(--navy-3)); color: #fff; border-radius: var(--r-lg); padding: 60px 48px; text-align: center; position: relative; overflow: hidden; }
.cta-band::before { content: ""; position: absolute; inset: 0; background: radial-gradient(600px 300px at 90% 10%, rgba(255,106,61,.3), transparent 60%); }
.cta-band h2 { color: #fff; font-size: clamp(24px, 3vw, 34px); }
.cta-band p { color: rgba(255,255,255,.8); max-width: 560px; margin: 0 auto 26px; }
.cta-band .hero-cta { justify-content: center; }

/* 统计带 */
.stats-band { background: var(--surface); border-radius: var(--r-lg); padding: 44px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; box-shadow: var(--shadow-sm); border: 1px solid var(--line); }
.stats-band .num { font-size: 38px; font-weight: 800; color: var(--navy); }
.stats-band .num .accent { color: var(--accent); }
.stats-band .lbl { color: var(--muted); font-size: 14px; }

/* 页脚 */
.site-footer { background: var(--navy); color: rgba(255,255,255,.78); margin-top: 40px; }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding: 64px 0 40px; }
.footer-brand .brand { color: #fff; margin-bottom: 14px; }
.footer-brand p { font-size: 14px; color: rgba(255,255,255,.6); max-width: 280px; }
.footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 16px; }
.footer-col a { display: block; font-size: 14px; color: rgba(255,255,255,.66); padding: 6px 0; }
.footer-col a:hover { color: var(--accent-2); }
.footer-phone { display: inline-flex; align-items: center; gap: 8px; font-size: 22px; font-weight: 800; color: #fff; margin: 6px 0 4px; }
.footer-phone:hover { color: var(--accent-2); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); padding: 22px 0; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: 13px; color: rgba(255,255,255,.55); }
.compliance-note { background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.10); border-radius: var(--r-sm); padding: 14px 16px; font-size: 12px; color: rgba(255,255,255,.62); margin-top: 16px; line-height: 1.6; }

/* 占位说明气泡（合规） */
.placeholder-note { font-size: 12px; color: #8a93a6; }

/* =========================================================
   响应式
   ========================================================= */
@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; padding: 72px 0 80px; }
  .hero-visual { order: -1; }
  .feature-grid, .product-grid { grid-template-columns: repeat(2, 1fr); }
  .detail-grid, .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .values { grid-template-columns: repeat(2, 1fr); }
  .stats-band { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .nav-links, .nav-cta .btn, .nav-cta .phone-pill { display: none; }
  .hamburger { display: flex; }
}
@media (max-width: 600px) {
  .section { padding: 60px 0; }
  .feature-grid, .product-grid, .values, .stats-band { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 28px; }
  .hero-stats { gap: 22px; flex-wrap: wrap; }
  .cta-band { padding: 44px 24px; }
  .container { padding: 0 18px; }
}

/* =========================================================
   产品图（动态 SVG）统一铺满
   ========================================================= */
.product-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.product-thumb { overflow: hidden; }

/* 图片加载失败兜底占位（即便 SVG 占位也失败时的最后防线） */
img.img-fallback {
  background: repeating-linear-gradient(45deg, #eef2f7, #eef2f7 10px, #e3e9f2 10px, #e3e9f2 20px);
  position: relative;
}
img.img-fallback::after {
  content: "图片加载失败"; position: absolute; inset: 0; display: grid; place-items: center;
  color: #8a93a6; font-size: 12px; background: rgba(255,255,255,.6);
}

/* =========================================================
   资讯页面
   ========================================================= */
.news-hero { background: linear-gradient(135deg, var(--navy), var(--navy-3)); color: #fff; padding: 76px 0 64px; position: relative; overflow: hidden; }
.news-hero::after { content: ""; position: absolute; inset: 0; background-image: radial-gradient(rgba(255,255,255,.06) 1px, transparent 1px); background-size: 22px 22px; opacity: .5; }
.news-hero .container { position: relative; z-index: 1; }
.news-hero h1 { color: #fff; font-size: clamp(28px, 4vw, 42px); margin-bottom: 12px; }
.news-hero p { color: rgba(255,255,255,.8); max-width: 560px; }

.news-toolbar { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; justify-content: space-between; margin: 8px 0 34px; }
.news-search { flex: 1; min-width: 240px; position: relative; }
.news-search input { width: 100%; padding: 13px 18px 13px 44px; border: 1px solid var(--line); border-radius: 999px; font-size: 15px; font-family: inherit; background: #fff; transition: border .15s, box-shadow .15s; }
.news-search input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(255,106,61,.14); }
.news-search::before { content: "🔍"; position: absolute; left: 16px; top: 50%; transform: translateY(-50%); font-size: 15px; opacity: .6; }
.news-sort { padding: 12px 16px; border: 1px solid var(--line); border-radius: 999px; font-size: 14px; font-family: inherit; background: #fff; cursor: pointer; }

.news-filter { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; margin-bottom: 36px; }
.news-filter-btn { padding: 9px 20px; border-radius: 999px; border: 1px solid var(--line); background: #fff; font-weight: 600; cursor: pointer; font-size: 14px; color: var(--ink); transition: .18s; }
.news-filter-btn:hover { border-color: var(--accent); color: var(--accent); }
.news-filter-btn.active { background: var(--navy); color: #fff; border-color: var(--navy); }

.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.news-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden; box-shadow: var(--shadow-sm); transition: transform .22s ease, box-shadow .22s ease; display: flex; flex-direction: column; }
.news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.news-card .cover { aspect-ratio: 16/9; overflow: hidden; position: relative; }
.news-card .cover img { width: 100%; height: 100%; object-fit: cover; display: block; }
.news-card .body { padding: 20px 22px 24px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.news-card .cat { align-self: flex-start; }
.news-card h3 { font-size: 18px; margin: 0; line-height: 1.4; }
.news-card .excerpt { font-size: 14px; color: var(--muted); margin: 0; flex: 1; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.news-card .meta { font-size: 13px; color: var(--muted); display: flex; gap: 10px; align-items: center; }
.news-card .meta .dot { width: 4px; height: 4px; border-radius: 50%; background: var(--line); }

.pagination { display: flex; gap: 10px; justify-content: center; align-items: center; margin-top: 44px; flex-wrap: wrap; }
.pagination button { padding: 9px 16px; border-radius: 999px; border: 1px solid var(--line); background: #fff; font-weight: 600; cursor: pointer; font-size: 14px; color: var(--ink); transition: .15s; }
.pagination button:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
.pagination button.active { background: var(--navy); color: #fff; border-color: var(--navy); }
.pagination button:disabled { opacity: .45; cursor: not-allowed; }
.pagination .pageinfo { font-size: 14px; color: var(--muted); }

.news-empty { text-align: center; color: var(--muted); padding: 60px 0; }

/* 资讯详情 */
.article-head { max-width: 820px; margin: 0 auto 28px; }
.article-head h1 { font-size: clamp(26px, 3.6vw, 38px); line-height: 1.3; }
.article-cover { aspect-ratio: 16/9; border-radius: var(--r-md); overflow: hidden; margin: 24px 0 32px; border: 1px solid var(--line); }
.article-cover img { width: 100%; height: 100%; object-fit: cover; }
.article-meta { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; color: var(--muted); font-size: 14px; margin-top: 14px; }
.article-meta .tag { cursor: default; }
.article-content { max-width: 760px; margin: 0 auto; }
.article-content h2 { font-size: 23px; margin: 34px 0 14px; color: var(--navy); }
.article-content p { font-size: 16.5px; line-height: 1.95; color: #28324a; margin: 0 0 18px; }
.article-source { max-width: 760px; margin: 30px auto 0; font-size: 13px; color: var(--muted); border-top: 1px solid var(--line); padding-top: 16px; }
.article-back { max-width: 760px; margin: 0 auto 40px; }

/* 首页资讯预览 */
.news-teaser-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }

/* 后台入口 */

/* 骨架占位 */
.skeleton { background: linear-gradient(90deg, #eef2f7 25%, #e3e9f2 37%, #eef2f7 63%); background-size: 400% 100%; animation: sk 1.3s ease infinite; border-radius: 8px; }
@keyframes sk { 0% { background-position: 100% 0; } 100% { background-position: -100% 0; } }

@media (max-width: 980px) {
  .news-grid, .news-teaser-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .news-grid, .news-teaser-grid { grid-template-columns: 1fr; }
}