/*!
 * 成都龙冠科技实业有限公司 — 静态站点样式
 * 纯 CSS，无任何外部依赖
 */

/* ---------- 1. 设计变量 ---------- */
:root {
  --navy-900: #06172b;
  --navy-800: #0a2540;
  --navy-700: #113657;
  --navy-600: #1a4a75;
  --blue-700: #12457a;
  --blue-600: #1c5f9e;
  --blue-500: #2c7ac2;
  --blue-300: #7fb3e0;
  --gold: #d8a24a;
  --gold-soft: #f0d6a8;
  --red: #c32b3c;
  --ink: #15212e;
  --ink-2: #2c3d4e;
  --muted: #5d7086;
  --muted-2: #8496a8;
  --line: #e2e9f1;
  --line-strong: #cfd9e4;
  --bg: #f5f8fb;
  --bg-soft: #eef3f8;
  --white: #fff;
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 18px;
  --shadow-sm: 0 2px 8px rgba(10, 37, 64, .06);
  --shadow: 0 12px 30px rgba(10, 37, 64, .1);
  --shadow-lg: 0 28px 60px rgba(10, 37, 64, .16);
  --wrap: 1200px;
  --header-h: 76px;
  --ease: cubic-bezier(.4, .05, .2, 1);
}

/* ---------- 2. 基础重置 ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Source Han Sans SC",
               "Noto Sans CJK SC", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink-2);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5 {
  margin: 0;
  color: var(--ink);
  font-weight: 700;
  line-height: 1.32;
  letter-spacing: .3px;
}

p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img, svg, video { max-width: 100%; height: auto; display: block; }
a { color: var(--blue-600); text-decoration: none; transition: color .2s var(--ease); }
a:hover { color: var(--blue-500); }
button { font: inherit; color: inherit; }
figure { margin: 0; }
table { border-collapse: collapse; width: 100%; }

:focus-visible {
  outline: 2px solid var(--blue-500);
  outline-offset: 3px;
  border-radius: 4px;
}

.container, .wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -80px;
  z-index: 999;
  padding: 10px 18px;
  background: var(--navy-800);
  color: #fff;
  border-radius: 0 0 8px 8px;
  transition: top .2s;
}
.skip-link:focus { top: 0; color: #fff; }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- 3. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .5px;
  line-height: 1.2;
  cursor: pointer;
  transition: all .25s var(--ease);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--blue-500), var(--blue-700));
  color: #fff;
  box-shadow: 0 10px 24px rgba(28, 95, 158, .3);
}
.btn-primary:hover {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(28, 95, 158, .4);
}

.btn-ghost {
  border-color: rgba(255, 255, 255, .45);
  color: #fff;
  background: rgba(255, 255, 255, .04);
}
.btn-ghost:hover {
  color: #fff;
  background: rgba(255, 255, 255, .14);
  border-color: rgba(255, 255, 255, .8);
}

.btn-outline {
  border-color: var(--line-strong);
  color: var(--blue-700);
  background: #fff;
}
.btn-outline:hover {
  border-color: var(--blue-500);
  color: var(--blue-600);
  background: #f7fbff;
}

.btn .icon,
.btn > svg { width: 16px; height: 16px; flex: none; }
.cat-card .count svg { width: 15px; height: 15px; flex: none; }

.btn-sm { padding: 10px 22px; font-size: 14px; }

/* ---------- 4. 顶部工具条 ---------- */
.topbar {
  background: var(--navy-900);
  color: #a9bdd2;
  font-size: 13px;
  letter-spacing: .4px;
}
.topbar .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 38px;
}
.topbar-note {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.topbar-note .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--gold);
  flex: none;
}
.topbar-links {
  display: flex;
  align-items: center;
  gap: 22px;
  flex: none;
}
.topbar-links a {
  color: #cfdcea;
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.topbar-links a:hover { color: #fff; }
.topbar-links svg { width: 14px; height: 14px; opacity: .8; }

/* ---------- 5. 页头 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(255, 255, 255, .95);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .3s var(--ease), background .3s var(--ease);
}
.site-header.is-scrolled {
  background: rgba(255, 255, 255, .98);
  box-shadow: 0 8px 26px rgba(10, 37, 64, .09);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: none;
  color: var(--ink);
}
.brand img { height: 42px; width: auto; }
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-text strong {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--navy-800);
}
.brand-text small {
  margin-top: 3px;
  font-size: 10px;
  letter-spacing: 2.4px;
  color: var(--muted-2);
  text-transform: uppercase;
}

.site-nav { display: flex; align-items: center; }
.nav-list { display: flex; align-items: center; }
.nav-list > li { position: relative; }
.nav-list > li > a {
  display: flex;
  align-items: center;
  gap: 6px;
  height: var(--header-h);
  padding: 0 18px;
  font-size: 15.5px;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: .5px;
}
.nav-list > li > a::after {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 18px;
  height: 2px;
  background: var(--blue-500);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s var(--ease);
}
.nav-list > li:hover > a,
.nav-list > li.is-current > a { color: var(--blue-600); }
.nav-list > li:hover > a::after,
.nav-list > li.is-current > a::after { transform: scaleX(1); }

.caret {
  width: 9px; height: 9px;
  border-right: 1.6px solid currentColor;
  border-bottom: 1.6px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  transition: transform .25s var(--ease);
  flex: none;
}
.nav-list > li:hover .caret { transform: rotate(225deg) translateY(-2px); }

.submenu {
  position: absolute;
  top: calc(100% - 14px);
  left: 8px;
  min-width: 200px;
  padding: 8px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity .22s var(--ease), transform .22s var(--ease), visibility .22s;
}
.nav-list > li:hover > .submenu,
.nav-list > li:focus-within > .submenu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.submenu a {
  display: block;
  padding: 10px 14px;
  border-radius: 7px;
  font-size: 14.5px;
  color: var(--ink-2);
  white-space: nowrap;
}
.submenu a:hover,
.submenu a.is-current {
  background: var(--bg-soft);
  color: var(--blue-600);
}

.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  cursor: pointer;
  position: relative;
}
.nav-toggle span {
  position: absolute;
  left: 12px;
  width: 20px; height: 2px;
  background: var(--navy-800);
  border-radius: 2px;
  transition: transform .3s var(--ease), opacity .2s;
}
.nav-toggle span:nth-child(1) { top: 15px; }
.nav-toggle span:nth-child(2) { top: 21px; }
.nav-toggle span:nth-child(3) { top: 27px; }
body.nav-open .nav-toggle span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
body.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
body.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.nav-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(6, 23, 43, .5);
  opacity: 0;
  visibility: hidden;
  transition: opacity .3s, visibility .3s;
  z-index: 88;
}

/* ---------- 6. 首页 hero 轮播 ---------- */
.hero {
  position: relative;
  background: radial-gradient(1200px 600px at 80% -10%, #1a5285 0%, transparent 60%),
              linear-gradient(140deg, var(--navy-900) 0%, var(--navy-800) 45%, #123b60 100%);
  color: #eaf2fa;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(70% 60% at 50% 40%, #000 20%, transparent 85%);
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  width: 620px; height: 620px;
  right: -180px; bottom: -320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(44, 122, 194, .35), transparent 65%);
  pointer-events: none;
}

.hero-slider { position: relative; z-index: 2; }
.hero-slides {
  display: flex;
  transition: transform .75s cubic-bezier(.65, .05, .36, 1);
  will-change: transform;
}
.hero-slide { flex: 0 0 100%; min-width: 0; }

.hero-slide-inner {
  display: grid;
  grid-template-columns: 1.04fr .96fr;
  gap: 56px;
  align-items: center;
  padding-top: 62px;
  padding-bottom: 86px;
}

.hero-copy { max-width: 620px; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
  padding: 6px 15px 6px 12px;
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 999px;
  background: rgba(255, 255, 255, .06);
  font-size: 12.5px;
  letter-spacing: 2.4px;
  color: #d7e6f5;
}
.eyebrow::before {
  content: "";
  width: 16px; height: 1px;
  background: var(--gold);
}

.hero h1,
.hero .hero-title {
  color: #fff;
  font-size: clamp(28px, 3.5vw, 46px);
  line-height: 1.28;
  letter-spacing: .5px;
}
.hero h1 em {
  font-style: normal;
  color: var(--gold-soft);
  display: inline;
}
.hero-desc {
  margin-top: 20px;
  max-width: 540px;
  font-size: 16px;
  line-height: 1.9;
  color: #bed2e6;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}
.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin-top: 30px;
  font-size: 13.5px;
  color: #9fb8d0;
}
.hero-tags span { display: inline-flex; align-items: center; gap: 8px; }
.hero-tags span::before {
  content: "";
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--blue-300);
}

.hero-visual { position: relative; }
.hero-visual .frame {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .16);
  box-shadow: 0 40px 70px rgba(0, 0, 0, .45);
  background: #0d2b47;
}
.hero-visual .frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(6, 23, 43, .35));
  pointer-events: none;
}
.hero-visual img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; }
.hero-badge {
  position: absolute;
  left: -18px;
  bottom: -22px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 20px;
  background: #fff;
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  color: var(--ink);
}
.hero-badge b {
  font-size: 26px;
  line-height: 1;
  color: var(--blue-600);
  letter-spacing: -1px;
}
.hero-badge span {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--muted);
}

.hero-dots {
  position: absolute;
  left: 0; right: 0;
  bottom: 26px;
  z-index: 3;
  display: flex;
  justify-content: center;
  gap: 10px;
}
.hero-dots button {
  width: 34px; height: 4px;
  padding: 0;
  border: 0;
  border-radius: 4px;
  background: rgba(255, 255, 255, .28);
  cursor: pointer;
  transition: background .3s, width .3s;
}
.hero-dots button[aria-selected="true"] {
  width: 46px;
  background: var(--gold);
}

.hero-arrow {
  position: absolute;
  top: 50%;
  z-index: 3;
  display: grid;
  place-items: center;
  width: 46px; height: 46px;
  margin-top: -30px;
  border: 1px solid rgba(255, 255, 255, .28);
  border-radius: 50%;
  background: rgba(6, 23, 43, .3);
  color: #fff;
  cursor: pointer;
  transition: background .25s, border-color .25s;
}
.hero-arrow:hover { background: rgba(255, 255, 255, .18); border-color: #fff; }
.hero-arrow.prev { left: 18px; }
.hero-arrow.next { right: 18px; }
.hero-arrow svg { width: 18px; height: 18px; }

.hero-stats {
  position: relative;
  z-index: 2;
  border-top: 1px solid rgba(255, 255, 255, .12);
  background: rgba(4, 17, 33, .35);
}
.hero-stats .wrap {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  padding-top: 26px;
  padding-bottom: 26px;
}
.stat {
  padding: 0 20px;
  border-left: 1px solid rgba(255, 255, 255, .1);
}
.stat:first-child { border-left: 0; padding-left: 0; }
.stat b {
  display: block;
  font-size: 27px;
  line-height: 1.1;
  color: #fff;
  letter-spacing: -.5px;
}
.stat b i {
  font-style: normal;
  font-size: 15px;
  margin-left: 3px;
  color: var(--gold);
}
.stat span {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  color: #9db5cc;
  letter-spacing: .6px;
}

/* ---------- 7. 通用区块 ---------- */
.section { padding: 84px 0; }
.section--soft { background: var(--bg); }
.section--tight { padding: 62px 0; }
.section--navy {
  background:
    radial-gradient(900px 400px at 15% 0%, rgba(44, 122, 194, .3), transparent 60%),
    linear-gradient(120deg, var(--navy-900), #0f3557);
  color: #d7e4f1;
}
.section--navy h2,
.section--navy h3 { color: #fff; }

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 44px;
}
.section-head .txt { max-width: 680px; }
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 2.6px;
  color: var(--blue-500);
  text-transform: uppercase;
}
.kicker::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--gold);
}
.section--navy .kicker { color: var(--gold-soft); }
.section-head h2 { font-size: clamp(24px, 2.5vw, 33px); }
.section-head .lead {
  margin-top: 14px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--muted);
}
.section--navy .section-head .lead { color: #a9c0d6; }
.section-head .link-more {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 4px;
  font-size: 14.5px;
  font-weight: 600;
  border-bottom: 1px solid transparent;
}
.section-head .link-more:hover { border-color: currentColor; }
.section-head .link-more svg { width: 15px; height: 15px; }

/* ---------- 8. 产品卡片 ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }

.p-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s;
}
.p-card:hover {
  transform: translateY(-6px);
  border-color: #d8e5f2;
  box-shadow: var(--shadow-lg);
}
.p-card .thumb {
  position: relative;
  overflow: hidden;
  background: #e9eff6;
  aspect-ratio: 3 / 2;
}
.p-card .thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .6s var(--ease);
}
.p-card:hover .thumb img { transform: scale(1.05); }
.p-card .tag {
  position: absolute;
  left: 14px; top: 14px;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(6, 23, 43, .72);
  backdrop-filter: blur(4px);
  color: #e8f1fa;
  font-size: 12px;
  letter-spacing: 1px;
}
.p-card .body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 20px 22px 24px;
}
.p-card h3 { font-size: 17.5px; line-height: 1.55; }
.p-card p {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}
.p-card .more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 18px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--blue-600);
}
.p-card .more svg { width: 14px; height: 14px; transition: transform .25s; }
.p-card:hover .more svg { transform: translateX(4px); }

/* ---------- 9. 关于 / 优势 ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.about-text p {
  margin-top: 18px;
  font-size: 15.5px;
  line-height: 2;
  color: var(--ink-2);
}
.about-text p:first-of-type { margin-top: 22px; }
.about-facts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-top: 32px;
}
.fact {
  padding: 18px 20px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.fact b {
  display: block;
  font-size: 15px;
  color: var(--navy-800);
}
.fact span {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.7;
}
.about-media { position: relative; }
.about-media .shot {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--line);
}
.about-media .shot img { width: 100%; object-fit: cover; aspect-ratio: 4 / 3; }
.about-media .quote {
  position: relative;
  margin-top: -42px;
  margin-left: 28px;
  margin-right: -8px;
  padding: 22px 26px;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border-left: 3px solid var(--gold);
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-2);
}

/* 能力列表 */
.cap-list { display: grid; gap: 22px; }
.cap {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 18px;
  padding: 22px 24px;
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: var(--radius);
  transition: background .3s, border-color .3s, transform .3s;
}
.cap:hover {
  background: rgba(255, 255, 255, .09);
  border-color: rgba(255, 255, 255, .24);
  transform: translateX(4px);
}
.cap .num {
  display: grid;
  place-items: center;
  width: 46px; height: 46px;
  border-radius: 12px;
  background: rgba(216, 162, 74, .14);
  border: 1px solid rgba(216, 162, 74, .35);
  color: var(--gold-soft);
  font-size: 15px;
  font-weight: 700;
}
.cap h3 { color: #fff; font-size: 17px; }
.cap p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.85;
  color: #a8c0d6;
}

/* ---------- 10. 合作伙伴 ---------- */
.partners {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 18px;
}
.partner {
  display: grid;
  place-items: center;
  padding: 22px 18px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: box-shadow .3s, transform .3s, border-color .3s;
}
.partner img {
  max-height: 96px;
  width: auto;
  object-fit: contain;
  filter: grayscale(1);
  opacity: .78;
  transition: filter .35s, opacity .35s;
}
.partner:hover {
  transform: translateY(-4px);
  border-color: #dbe6f2;
  box-shadow: var(--shadow);
}
.partner:hover img { filter: grayscale(0); opacity: 1; }

/* ---------- 11. 新闻 ---------- */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }

.n-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}
.n-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.n-card .thumb {
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, #dfe9f4, #c9d9e9);
  overflow: hidden;
}
.n-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.n-card:hover .thumb img { transform: scale(1.05); }
.n-card .thumb.blank {
  display: grid;
  place-items: center;
  background:
    radial-gradient(400px 200px at 80% 0%, rgba(44, 122, 194, .25), transparent 70%),
    linear-gradient(135deg, var(--navy-800), var(--navy-600));
}
.n-card .thumb.blank span {
  color: rgba(255, 255, 255, .8);
  font-size: 12.5px;
  letter-spacing: 3px;
}
.n-card .body { display: flex; flex-direction: column; flex: 1; padding: 20px 22px 24px; }
.n-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12.5px;
  color: var(--muted-2);
  letter-spacing: .5px;
}
.n-meta .cat {
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--bg-soft);
  color: var(--blue-700);
  font-weight: 600;
}
.n-card h3 { margin-top: 12px; font-size: 16.5px; line-height: 1.6; }
.n-card h3 a { color: var(--ink); }
.n-card h3 a:hover { color: var(--blue-600); }
.n-card .excerpt {
  margin-top: 10px;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 首页新闻列表（带日期块） */
.news-list { display: grid; gap: 16px; }
.news-row {
  display: grid;
  grid-template-columns: 92px 1fr auto;
  gap: 24px;
  align-items: center;
  padding: 22px 26px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color .3s, box-shadow .3s, transform .3s;
}
.news-row:hover {
  border-color: #d5e3f1;
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.news-date {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-right: 22px;
  border-right: 1px solid var(--line);
}
.news-date b {
  font-size: 24px;
  line-height: 1.1;
  color: var(--navy-800);
  letter-spacing: -.5px;
}
.news-date span { font-size: 12.5px; color: var(--muted-2); letter-spacing: 1px; }
.news-row h3 { font-size: 16.5px; line-height: 1.6; }
.news-row h3 a { color: var(--ink); }
.news-row h3 a:hover { color: var(--blue-600); }
.news-row .excerpt {
  margin-top: 7px;
  font-size: 13.5px;
  color: var(--muted);
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-row .go { color: var(--muted-2); flex: none; }
.news-row .go svg { width: 18px; height: 18px; transition: transform .25s, color .25s; }
.news-row:hover .go svg { transform: translateX(4px); color: var(--blue-600); }

/* ---------- 12. CTA ---------- */
.cta {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(800px 380px at 85% 20%, rgba(44, 122, 194, .38), transparent 65%),
    linear-gradient(115deg, var(--navy-900), #103a5f);
  color: #fff;
}
.cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
}
.cta .wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  padding-top: 58px;
  padding-bottom: 58px;
}
.cta h2 { color: #fff; font-size: clamp(22px, 2.4vw, 30px); }
.cta p { margin-top: 12px; font-size: 15px; color: #b3c9dd; max-width: 620px; }
.cta .actions { display: flex; gap: 14px; flex-wrap: wrap; flex: none; }

/* ---------- 13. 页脚 ---------- */
.site-footer { background: var(--navy-900); color: #9fb4c9; font-size: 14px; }
.footer-main {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.3fr;
  gap: 44px;
  padding: 64px 0 48px;
}
.footer-brand .logo-plate {
  display: inline-flex;
  padding: 8px 12px;
  background: #fff;
  border-radius: 8px;
}
.footer-brand .logo-plate img { height: 38px; width: auto; }
.footer-brand .name {
  margin-top: 18px;
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 1.2px;
}
.footer-brand p {
  margin-top: 14px;
  font-size: 13.5px;
  line-height: 1.9;
  color: #8ea4ba;
  max-width: 330px;
}
.footer-col h4 {
  color: #fff;
  font-size: 14.5px;
  letter-spacing: 1.4px;
  margin-bottom: 18px;
}
.footer-col ul { display: grid; gap: 11px; }
.footer-col a { color: #9fb4c9; font-size: 13.5px; }
.footer-col a:hover { color: #fff; }
.footer-contact { display: grid; gap: 14px; }
.footer-contact .tel {
  color: #fff;
  font-size: 21px;
  font-weight: 700;
  letter-spacing: .5px;
  line-height: 1.2;
}
.footer-contact .tel small {
  display: block;
  margin-bottom: 4px;
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 1.4px;
  color: #8ea4ba;
}
.footer-contact .qr { display: flex; gap: 18px; margin-top: 6px; }
.footer-contact .qr figure { text-align: center; }
.footer-contact .qr img {
  width: 82px; height: 82px;
  padding: 5px;
  background: #fff;
  border-radius: 8px;
  object-fit: contain;
}
.footer-contact .qr figcaption {
  margin-top: 7px;
  font-size: 11.5px;
  color: #8ea4ba;
  letter-spacing: .5px;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .09);
  padding: 20px 0;
  font-size: 12.5px;
  color: #7e94aa;
}
.footer-bottom .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.footer-bottom a { color: #9fb4c9; }
.footer-bottom a:hover { color: #fff; }

/* ---------- 14. 内页 banner & 面包屑 ---------- */
.page-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(900px 420px at 82% 0%, rgba(44, 122, 194, .35), transparent 62%),
    linear-gradient(120deg, var(--navy-900), #103a5f);
  color: #fff;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: linear-gradient(90deg, #000, transparent 85%);
  pointer-events: none;
}
.page-hero .wrap {
  position: relative;
  padding-top: 62px;
  padding-bottom: 56px;
}
.page-hero h1 { color: #fff; font-size: clamp(26px, 3vw, 38px); letter-spacing: .6px; }
.page-hero .sub {
  margin-top: 14px;
  max-width: 720px;
  font-size: 15px;
  line-height: 1.9;
  color: #b6cce0;
}
.crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px;
  margin-bottom: 20px;
  font-size: 13px;
  color: #92abc3;
}
.crumb a { color: #c3d6e8; }
.crumb a:hover { color: #fff; }
.crumb .sep { opacity: .55; }
.crumb .now { color: var(--gold-soft); }

/* ---------- 15. 关于我们 / 选项卡 ---------- */
.tabs { margin-top: 8px; }
.tabs-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}
.tab-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.tab-btn {
  padding: 11px 26px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--ink-2);
  font-size: 14.5px;
  font-weight: 500;
  cursor: pointer;
  transition: all .25s var(--ease);
}
.tab-btn:hover { border-color: var(--blue-300); color: var(--blue-600); }
.tab-btn[aria-selected="true"] {
  background: linear-gradient(135deg, var(--blue-600), var(--navy-700));
  border-color: transparent;
  color: #fff;
  box-shadow: 0 8px 20px rgba(28, 95, 158, .28);
}
.tab-panel { display: none; padding-top: 34px; animation: fadeUp .4s var(--ease); }
.tab-panel.is-active { display: block; }

.prose { max-width: 820px; }
.prose p {
  margin-bottom: 18px;
  font-size: 15.5px;
  line-height: 2.05;
  color: var(--ink-2);
}
.prose p:last-child { margin-bottom: 0; }
.prose h2 { margin: 34px 0 16px; font-size: 22px; }
.prose h3 { margin: 26px 0 12px; font-size: 18px; }
.prose strong { color: var(--ink); }
.prose ul { margin: 0 0 18px; padding-left: 2px; }
.prose ul li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 10px;
  font-size: 15.5px;
  line-height: 1.95;
}
.prose ul li::before {
  content: "";
  position: absolute;
  left: 2px; top: 13px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--blue-300);
}

/* 联系方式卡片 */
.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 40px;
  align-items: start;
}
.contact-card {
  padding: 30px 32px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.contact-card + .contact-card { margin-top: 22px; }
.contact-card .label {
  font-size: 12.5px;
  letter-spacing: 2px;
  color: var(--muted-2);
  text-transform: uppercase;
}
.contact-card .value {
  margin-top: 10px;
  font-size: 30px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--navy-800);
}
.contact-card .value a { color: inherit; }
.contact-card .value a:hover { color: var(--blue-600); }
.contact-card .hint { margin-top: 12px; font-size: 13.5px; color: var(--muted); line-height: 1.9; }
.qr-pair { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.qr-item { text-align: center; }
.qr-item img {
  width: 100%;
  max-width: 210px;
  margin: 0 auto;
  padding: 10px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.qr-item h4 { margin-top: 14px; font-size: 14.5px; }
.qr-item p { margin-top: 6px; font-size: 12.5px; color: var(--muted); }

/* ---------- 16. 产品列表页 ---------- */
.cat-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.cat-card {
  position: relative;
  display: block;
  padding: 30px 30px 32px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all .35s var(--ease);
}
.cat-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0;
  width: 3px; height: 100%;
  background: linear-gradient(180deg, var(--blue-500), var(--gold));
  transform: scaleY(0);
  transform-origin: top;
  transition: transform .4s var(--ease);
}
.cat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: #d9e6f3;
}
.cat-card:hover::before { transform: scaleY(1); }
.cat-card .idx {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--blue-500);
}
.cat-card h3 { margin-top: 14px; font-size: 19px; color: var(--ink); }
.cat-card p { margin-top: 10px; font-size: 13.8px; line-height: 1.85; color: var(--muted); }
.cat-card .count {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  margin-top: 20px;
  font-size: 13px;
  font-weight: 600;
  color: var(--blue-600);
}

/* ---------- 17. 新闻列表 & 文章 ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}
.filter-bar .chip {
  padding: 9px 20px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  font-size: 14px;
  color: var(--ink-2);
  transition: all .25s var(--ease);
}
.filter-bar .chip:hover { border-color: var(--blue-300); color: var(--blue-600); }
.filter-bar .chip.is-active {
  background: var(--navy-800);
  border-color: var(--navy-800);
  color: #fff;
}
.filter-bar .total {
  margin-left: auto;
  font-size: 13px;
  color: var(--muted-2);
}

.article-wrap { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 56px; align-items: start; }
.article-head { padding-bottom: 26px; margin-bottom: 30px; border-bottom: 1px solid var(--line); }
.article-head h1 { font-size: clamp(23px, 2.6vw, 32px); line-height: 1.5; }
.article-head .meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-top: 18px;
  font-size: 13px;
  color: var(--muted-2);
}
.article-head .meta .cat {
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--bg-soft);
  color: var(--blue-700);
  font-weight: 600;
}
.article-body { max-width: 100%; }
.article-body p {
  margin-bottom: 20px;
  font-size: 16.5px;
  line-height: 2.05;
  color: #26364a;
}
.article-body img {
  max-width: 100%;
  margin: 6px 0 22px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.article-body figure { margin: 0 0 22px; }
.article-body figure img { margin: 0; }
.article-body .markdown-body { display: block; }
.article-body h2 { margin: 34px 0 16px; font-size: 21px; }
.article-body h3 { margin: 28px 0 14px; font-size: 18px; }
.article-body blockquote {
  margin: 0 0 22px;
  padding: 16px 22px;
  border-left: 3px solid var(--blue-300);
  background: var(--bg-soft);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--ink-2);
}
.article-body ul { margin: 0 0 20px; }
.article-body ul li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 10px;
  font-size: 16px;
  line-height: 1.95;
}
.article-body ul li::before {
  content: "";
  position: absolute;
  left: 2px; top: 13px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--blue-300);
}

.article-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 46px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
}
.back-link svg { width: 15px; height: 15px; }
.share-hint { font-size: 13px; color: var(--muted-2); }

.sidebar { position: sticky; top: calc(var(--header-h) + 24px); }
.side-box {
  padding: 24px 24px 26px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.side-box + .side-box { margin-top: 22px; }
.side-box h3 {
  font-size: 15px;
  letter-spacing: 1.2px;
  padding-bottom: 14px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--line);
}
.side-list { display: grid; gap: 14px; }
.side-list a {
  display: block;
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-2);
}
.side-list a:hover { color: var(--blue-600); }
.side-list time { display: block; margin-top: 4px; font-size: 12px; color: var(--muted-2); }
.side-contact .tel {
  margin-top: 6px;
  font-size: 22px;
  font-weight: 700;
  color: var(--navy-800);
  letter-spacing: .5px;
}
.side-contact p { margin-top: 10px; font-size: 13px; line-height: 1.85; color: var(--muted); }
.side-contact .btn { width: 100%; margin-top: 16px; }

.pager {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-top: 46px;
}
.pager a {
  padding: 18px 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: all .25s var(--ease);
}
.pager a:hover { border-color: var(--blue-300); box-shadow: var(--shadow-sm); transform: translateY(-2px); }
.pager .dir { display: block; font-size: 12px; color: var(--muted-2); letter-spacing: 1px; }
.pager .ttl {
  display: block;
  margin-top: 6px;
  font-size: 14.5px;
  color: var(--ink);
  line-height: 1.6;
  font-weight: 500;
}
.pager .next { text-align: right; }

.empty {
  padding: 70px 24px;
  text-align: center;
  background: #fff;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-lg);
  color: var(--muted);
}
.empty b { display: block; font-size: 17px; color: var(--ink); margin-bottom: 8px; }

/* ---------- 18. 返回顶部 & 动效 ---------- */
.to-top {
  position: fixed;
  right: 24px;
  bottom: 26px;
  z-index: 80;
  display: grid;
  place-items: center;
  width: 46px; height: 46px;
  border: 0;
  border-radius: 50%;
  background: var(--navy-800);
  color: #fff;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all .3s var(--ease);
  box-shadow: 0 10px 24px rgba(6, 23, 43, .28);
}
.to-top.is-on { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { background: var(--blue-600); }
.to-top svg { width: 18px; height: 18px; }

html.js .reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
html.js .reveal.is-in { opacity: 1; transform: none; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    transition-duration: .001ms !important;
  }
  html.js .reveal { opacity: 1 !important; transform: none !important; }
}

/* ---------- 19. 响应式 ---------- */
@media (max-width: 1180px) {
  .footer-main { grid-template-columns: 1.5fr 1fr 1.2fr; }
  .footer-main > *:nth-child(3) { display: none; }
  .partners { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 1024px) {
  :root { --header-h: 68px; }
  .section { padding: 66px 0; }
  .hero-slide-inner { grid-template-columns: 1fr; gap: 44px; padding-top: 46px; padding-bottom: 78px; }
  .hero-copy { max-width: 100%; }
  .hero-visual { max-width: 620px; }
  .hero-badge { left: auto; right: 14px; bottom: -18px; }
  .hero-arrow { display: none; }
  .grid-3, .news-grid, .cat-cards { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; gap: 44px; }
  .about-media .quote { margin-left: 0; margin-right: 0; }
  .article-wrap { grid-template-columns: 1fr; gap: 40px; }
  .sidebar { position: static; display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
  .side-box + .side-box { margin-top: 0; }
  .cta .wrap { flex-direction: column; align-items: flex-start; gap: 26px; }
  .contact-grid { grid-template-columns: 1fr; }

  .nav-toggle { display: block; position: relative; z-index: 96; }
  .site-header { z-index: 97; }
  .site-nav {
    position: fixed;
    top: var(--header-h); right: 0;
    z-index: 95;
    width: min(84vw, 360px);
    height: calc(100vh - var(--header-h));
    padding: 16px 22px 40px;
    background: #fff;
    box-shadow: -18px 0 50px rgba(6, 23, 43, .22);
    transform: translateX(102%);
    transition: transform .35s var(--ease);
    overflow-y: auto;
    display: block;
  }
  body.nav-open .site-nav { transform: none; }
  body.nav-open .nav-backdrop { opacity: 1; visibility: visible; }
  body.nav-open { overflow: hidden; }

  .nav-list { display: block; }
  .nav-list > li { border-bottom: 1px solid var(--line); }
  .nav-list > li > a {
    height: auto;
    padding: 15px 4px;
    font-size: 16px;
    justify-content: space-between;
  }
  .nav-list > li > a::after { display: none; }
  .nav-list > li.is-current > a { color: var(--blue-600); }
  .submenu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    display: none;
    padding: 4px 0 12px 12px;
    border: 0;
    box-shadow: none;
    background: transparent;
  }
  .nav-list > li.is-open .submenu { display: block; }
  .nav-list > li.is-open .caret { transform: rotate(225deg) translateY(-2px); }
  .submenu a { padding: 9px 12px; font-size: 14.5px; }
  .nav-list > li:hover > .submenu { opacity: 1; visibility: visible; transform: none; }
}

@media (max-width: 782px) {
  .topbar-note { display: none; }
  .topbar .wrap { justify-content: center; }
  .hero-stats .wrap { grid-template-columns: repeat(2, 1fr); gap: 20px 8px; }
  .stat { padding-left: 16px; }
  .stat:nth-child(odd) { border-left: 0; padding-left: 0; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 18px; }
  .partners { grid-template-columns: repeat(2, 1fr); }
  .news-row {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 20px;
  }
  .news-date {
    flex-direction: row;
    align-items: baseline;
    gap: 8px;
    padding-right: 0;
    border-right: 0;
    border-bottom: 1px dashed var(--line);
    padding-bottom: 10px;
  }
  .news-date b { font-size: 18px; }
  .news-row .go { display: none; }
  .pager { grid-template-columns: 1fr; }
  .pager .next { text-align: left; }
  .sidebar { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr; gap: 34px; padding: 48px 0 34px; }
  .footer-main > *:nth-child(3) { display: block; }
  .footer-bottom .wrap { flex-direction: column; align-items: flex-start; gap: 8px; }
  .to-top { right: 16px; bottom: 18px; }
}

@media (max-width: 560px) {
  .brand img { height: 34px; }
  .brand-text strong { font-size: 15.5px; letter-spacing: .8px; }
  .brand-text small { font-size: 8.5px; letter-spacing: 1.6px; }
  .hero h1 { font-size: 26px; }
  .hero-desc { font-size: 14.5px; }
  .hero-tags { display: none; }
  .hero-badge { display: none; }
  .grid-3, .grid-2, .news-grid, .cat-cards { grid-template-columns: 1fr; }
  .about-facts { grid-template-columns: 1fr; }
  .qr-pair { grid-template-columns: 1fr; }
  .contact-card { padding: 24px; }
  .contact-card .value { font-size: 24px; }
  .article-body p { font-size: 15.5px; }
  .filter-bar .total { margin-left: 0; width: 100%; }
}

/* 浅色背景下的能力卡片 */
.cap--light {
  background: #fff;
  border-color: var(--line);
  box-shadow: var(--shadow-sm);
}
.cap--light:hover {
  background: #fff;
  border-color: #d8e5f2;
  box-shadow: var(--shadow);
}
.cap--light .num {
  background: rgba(28, 95, 158, .08);
  border-color: rgba(28, 95, 158, .22);
  color: var(--blue-600);
}
.cap--light h3 { color: var(--ink); }
.cap--light p { color: var(--muted); }

/* 咨询方式清单 */
.talk-list { display: grid; gap: 12px; margin-top: 16px; }
.talk-list a,
.talk-list span {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fbfdff;
  font-size: 14px;
  color: var(--ink-2);
}
.talk-list a:hover { border-color: var(--blue-300); color: var(--blue-600); background: #f5faff; }
.talk-list svg { width: 16px; height: 16px; color: var(--blue-500); flex: none; }
.talk-list em { margin-left: auto; font-style: normal; font-size: 13px; color: var(--muted-2); }