/* ============ 基础与变量 ============ */
:root {
  --brand: #0a3d91;
  --brand-2: #1a6fe0;
  --brand-3: #0e54c4;
  --brand-dark: #072a63;
  --brand-light: #eaf1fb;
  --brand-lighter: #f4f8fe;
  --accent: #f5a623;
  --accent-2: #ffcf7d;
  --teal: #14b8a6;
  --ink: #16233a;
  --muted: #5c6b80;
  --bg: #ffffff;
  --bg-soft: #f5f8fd;
  --line: #e3eaf4;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 4px 14px rgba(10, 61, 145, 0.06);
  --shadow: 0 12px 32px rgba(10, 61, 145, 0.09);
  --shadow-lg: 0 22px 48px rgba(10, 61, 145, 0.16);
  --grad: linear-gradient(135deg, var(--brand) 0%, var(--brand-2) 100%);
  --grad-accent: linear-gradient(135deg, var(--accent) 0%, #ff8c42 100%);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); color: var(--ink); background: var(--bg); line-height: 1.75; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--brand-2); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--brand); }
ul, ol { list-style-position: inside; }
h1, h2, h3, h4 { line-height: 1.32; color: var(--ink); font-weight: 800; letter-spacing: -0.01em; }
h1 { font-size: clamp(1.8rem, 3.6vw, 2.7rem); }
h2 { font-size: clamp(1.4rem, 2.5vw, 1.9rem); }
h3 { font-size: 1.18rem; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
::selection { background: var(--brand); color: #fff; }
.skip-link { position: absolute; left: -9999px; top: 0; background: var(--brand-dark); color: #fff; padding: 10px 16px; z-index: 200; border-radius: 0 0 8px 0; }
.skip-link:focus { left: 0; color: #fff; }

.container { max-width: 1160px; margin: 0 auto; padding: 0 20px; }
.container.narrow { max-width: 880px; }
.muted { color: var(--muted); }
.section { padding: 84px 0; position: relative; }
.section-soft { background: var(--bg-soft); }
.section-soft::before { content: ""; position: absolute; inset: 0; background: radial-gradient(600px 220px at 12% 0%, rgba(26,111,224,0.05), transparent 60%), radial-gradient(600px 220px at 88% 100%, rgba(245,166,35,0.06), transparent 60%); pointer-events: none; }
.section-head { max-width: 760px; margin: 0 auto 48px; text-align: center; position: relative; }
.section-kicker { display: inline-flex; align-items: center; gap: 10px; color: var(--brand-2); font-weight: 800; letter-spacing: 0.14em; text-transform: uppercase; font-size: 0.8rem; margin-bottom: 12px; }
.section-kicker::before, .section-kicker::after { content: ""; width: 26px; height: 2px; border-radius: 2px; background: var(--grad-accent); }
.section-sub { color: var(--muted); margin-top: 12px; font-size: 1.02rem; }
.section-more { text-align: center; margin-top: 32px; color: var(--muted); }
.section-more a { font-weight: 700; color: var(--brand-2); border-bottom: 2px solid var(--accent); padding-bottom: 2px; }
.section-more a:hover { color: var(--brand); }

/* ============ 按钮 ============ */
.btn { display: inline-block; padding: 13px 28px; border-radius: 999px; font-weight: 700; font-size: 1rem; text-align: center; transition: all 0.25s ease; border: 2px solid transparent; cursor: pointer; }
.btn:hover { text-decoration: none; transform: translateY(-2px); }
.btn-lg { padding: 15px 36px; font-size: 1.06rem; }
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 10px 24px rgba(26, 111, 224, 0.32); }
.btn-primary:hover { background: linear-gradient(135deg, var(--brand-dark), var(--brand-2)); color: #fff; box-shadow: 0 14px 30px rgba(26, 111, 224, 0.42); transform: translateY(-2px); }
.btn-outline { border-color: var(--brand-2); color: var(--brand-2); background: rgba(255, 255, 255, 0.6); }
.btn-outline:hover { background: var(--brand-light); border-color: var(--brand); color: var(--brand); }
.btn-light { background: #fff; color: var(--brand-dark); box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15); }
.btn-light:hover { background: var(--brand-lighter); color: var(--brand-dark); transform: translateY(-2px); }
.btn-outline-light { border-color: rgba(255, 255, 255, 0.7); color: #fff; background: rgba(255, 255, 255, 0.08); }
.btn-outline-light:hover { background: rgba(255, 255, 255, 0.18); color: #fff; border-color: #fff; }
.btn-block { display: block; width: 100%; }

/* ============ 顶栏 ============ */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255, 255, 255, 0.86); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid rgba(227, 234, 244, 0.8); transition: box-shadow 0.3s ease; }
.site-header.scrolled { box-shadow: 0 6px 24px rgba(10, 61, 145, 0.08); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 70px; gap: 20px; }
.brand { display: inline-flex; align-items: center; gap: 11px; }
.brand:hover { text-decoration: none; }
.brand img { border-radius: 10px; box-shadow: 0 4px 10px rgba(10, 61, 145, 0.2); }
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-name { font-weight: 800; font-size: 1.14rem; color: var(--brand-dark); }
.brand-sub { font-size: 0.7rem; color: var(--muted); letter-spacing: 0.16em; font-weight: 600; }
.site-nav { display: flex; align-items: center; gap: 24px; }
.nav-list { display: flex; gap: 28px; list-style: none; }
.nav-list a { color: var(--ink); font-weight: 600; padding: 8px 2px; position: relative; }
.nav-list a::after { content: ""; position: absolute; left: 50%; right: 50%; bottom: 2px; height: 3px; border-radius: 3px; background: var(--grad-accent); transition: left 0.25s ease, right 0.25s ease; }
.nav-list a:hover { color: var(--brand-2); text-decoration: none; }
.nav-list a:hover::after { left: 0; right: 0; }
.nav-list a.active { color: var(--brand-2); font-weight: 800; }
.nav-list a.active::after { left: 0; right: 0; }
.nav-cta { padding: 10px 24px; font-size: 0.95rem; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; border-radius: 8px; }
.nav-toggle span { width: 24px; height: 2.5px; background: var(--brand-dark); border-radius: 2px; transition: all 0.25s ease; }

/* ============ 首页 Hero ============ */
.hero { position: relative; color: #fff; padding: 88px 0 72px; overflow: hidden;
  background: linear-gradient(140deg, #072a63 0%, #0a3d91 40%, #0e54c4 70%, #1a6fe0 100%); }
.hero::before { content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(rgba(255,255,255,0.14) 1.2px, transparent 1.2px);
  background-size: 26px 26px; opacity: 0.35;
  -webkit-mask-image: radial-gradient(720px 420px at 70% 20%, #000 30%, transparent 75%);
  mask-image: radial-gradient(720px 420px at 70% 20%, #000 30%, transparent 75%); }
.hero::after { content: ""; position: absolute; width: 640px; height: 640px; right: -180px; top: -200px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.12), transparent 65%); pointer-events: none; }
.hero-inner { position: relative; display: grid; grid-template-columns: 1.12fr 0.88fr; gap: 52px; align-items: center; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255, 255, 255, 0.12); border: 1px solid rgba(255, 255, 255, 0.28); padding: 7px 16px; border-radius: 999px; font-size: 0.86rem; margin-bottom: 20px; backdrop-filter: blur(6px); }
.hero-badge::before { content: "✦"; color: var(--accent-2); }
.hero h1 { color: #fff; margin-bottom: 20px; text-shadow: 0 2px 18px rgba(0, 0, 0, 0.12); }
.hero h1 .hl { color: var(--accent-2); }
.hero-lead { color: rgba(255, 255, 255, 0.92); font-size: 1.1rem; max-width: 560px; margin-bottom: 30px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 32px; }
.hero-trust { list-style: none; display: flex; flex-wrap: wrap; gap: 22px; font-size: 0.9rem; color: rgba(255, 255, 255, 0.9); }
.hero-trust li { display: inline-flex; align-items: center; gap: 7px; }
.hero-trust li::before { content: "✓"; width: 18px; height: 18px; border-radius: 50%; background: var(--accent); color: #fff; font-size: 0.7rem; font-weight: 800; display: inline-flex; align-items: center; justify-content: center; }
.hero-visual { position: relative; }
.hero-visual img { border-radius: 22px; box-shadow: 0 30px 70px rgba(2, 20, 60, 0.45); }
.hero-chip { position: absolute; left: -26px; bottom: 26px; display: inline-flex; align-items: center; gap: 10px; background: rgba(255, 255, 255, 0.96); color: var(--brand-dark); font-weight: 700; font-size: 0.9rem; padding: 12px 18px; border-radius: 14px; box-shadow: var(--shadow-lg); animation: floatY 4s ease-in-out infinite; }
.hero-chip .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 0 4px rgba(20, 184, 166, 0.2); }
@keyframes floatY { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

/* ============ 数据条 ============ */
.stats-strip { position: relative; background: var(--brand-dark); overflow: hidden; }
.stats-strip::before { content: ""; position: absolute; inset: 0; background-image: radial-gradient(rgba(255,255,255,0.12) 1px, transparent 1px); background-size: 22px 22px; opacity: 0.25; }
.stats-grid { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; padding: 38px 0; }
.stat { text-align: center; color: #fff; background: rgba(255, 255, 255, 0.06); border: 1px solid rgba(255, 255, 255, 0.12); border-radius: 14px; padding: 20px 12px; backdrop-filter: blur(4px); transition: transform 0.25s ease, background 0.25s ease; }
.stat:hover { transform: translateY(-4px); background: rgba(255, 255, 255, 0.1); }
.stat strong { display: block; font-size: 1.9rem; font-weight: 800; background: linear-gradient(120deg, var(--accent-2), var(--accent)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.stat span { font-size: 0.9rem; color: rgba(255, 255, 255, 0.85); }

/* ============ 卡片 ============ */
.card-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.card { position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 26px; box-shadow: var(--shadow-sm); transition: transform 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease; overflow: hidden; }
.card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: var(--grad); transform: scaleX(0); transform-origin: left; transition: transform 0.3s ease; }
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(26, 111, 224, 0.35); }
.card:hover::before { transform: scaleX(1); }
.card-icon { width: 58px; height: 58px; padding: 13px; margin-bottom: 18px; border-radius: 16px; background: linear-gradient(135deg, var(--brand-light), var(--brand-lighter)); box-shadow: inset 0 0 0 1px rgba(10, 61, 145, 0.06); transition: transform 0.28s ease; }
.card:hover .card-icon { transform: scale(1.08) rotate(-4deg); }
.card h3 { margin-bottom: 10px; }
.card h3 a { color: var(--ink); }
.card h3 a:hover { color: var(--brand-2); text-decoration: none; }
.card p { color: var(--muted); font-size: 0.95rem; }
.card-link { display: inline-flex; align-items: center; gap: 6px; margin-top: 14px; font-weight: 700; color: var(--brand-2); font-size: 0.94rem; }
.card-link:hover { color: var(--brand); text-decoration: none; gap: 10px; }
.card-link { transition: gap 0.2s ease; }

/* ============ 特性网格 ============ */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.feature { position: relative; background: #fff; border-radius: var(--radius); padding: 30px; border: 1px solid var(--line); box-shadow: var(--shadow-sm); transition: transform 0.28s ease, box-shadow 0.28s ease; }
.feature:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.feature h3 { color: var(--brand-dark); margin-bottom: 10px; position: relative; padding-left: 24px; }
.feature h3::before { content: ""; position: absolute; left: 0; top: 7px; width: 12px; height: 12px; border-radius: 50%; background: var(--grad-accent); box-shadow: 0 0 0 4px rgba(245, 166, 35, 0.16); }
.feature p { color: var(--muted); font-size: 0.95rem; }

/* ============ 客户评价/应用领域 ============ */
.quote-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.quote { position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 26px 24px; box-shadow: var(--shadow-sm); transition: transform 0.28s ease, box-shadow 0.28s ease; }
.quote:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.quote::before { content: "“"; position: absolute; top: -6px; left: 18px; font-size: 3.4rem; line-height: 1; color: var(--accent); opacity: 0.55; font-family: Georgia, serif; }
.quote p { color: var(--ink); margin-bottom: 14px; padding-top: 14px; }
.quote footer { color: var(--muted); font-size: 0.9rem; font-weight: 600; }

/* ============ 新闻列表 ============ */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-item { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow-sm); transition: transform 0.28s ease, box-shadow 0.28s ease; }
.news-item:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.news-item time { display: inline-block; background: var(--brand-light); color: var(--brand-2); font-size: 0.8rem; font-weight: 700; border-radius: 999px; padding: 3px 12px; margin-bottom: 12px; }
.news-item h3 { margin-bottom: 10px; font-size: 1.05rem; line-height: 1.5; }
.news-item h3 a { color: var(--ink); }
.news-item h3 a:hover { color: var(--brand-2); text-decoration: none; }
.news-item p { color: var(--muted); font-size: 0.93rem; }
.news-full { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; margin-bottom: 24px; box-shadow: var(--shadow-sm); transition: box-shadow 0.28s ease, transform 0.28s ease; }
.news-full:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.news-full time { color: var(--brand-2); font-size: 0.86rem; font-weight: 700; display: block; margin-bottom: 10px; }
.news-full h2 { margin-bottom: 10px; }
.news-full h2 a { color: var(--ink); }
.news-full h2 a:hover { color: var(--brand-2); text-decoration: none; }
.news-full p { color: var(--muted); }

/* ============ CTA 横幅 ============ */
.cta-band { position: relative; background: linear-gradient(135deg, var(--brand-dark) 0%, var(--brand) 55%, var(--brand-2) 100%); color: #fff; padding: 76px 0; overflow: hidden; }
.cta-band::before { content: ""; position: absolute; width: 480px; height: 480px; border-radius: 50%; left: -140px; bottom: -200px; background: radial-gradient(circle, rgba(255, 255, 255, 0.12), transparent 65%); }
.cta-band::after { content: ""; position: absolute; width: 420px; height: 420px; border-radius: 50%; right: -120px; top: -180px; background: radial-gradient(circle, rgba(245, 166, 35, 0.18), transparent 65%); }
.cta-inner { position: relative; text-align: center; max-width: 780px; }
.cta-inner h2 { color: #fff; margin-bottom: 12px; }
.cta-inner p { color: rgba(255, 255, 255, 0.92); margin-bottom: 28px; font-size: 1.05rem; }
.cta-inner .hero-actions { justify-content: center; margin-bottom: 0; }

/* ============ 页脚 ============ */
.site-footer { background: #0a1530; color: rgba(255, 255, 255, 0.72); position: relative; }
.site-footer::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--accent), var(--brand-2), var(--teal)); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1.2fr 1.3fr; gap: 40px; padding: 60px 0 40px; }
.footer-col h3 { color: #fff; font-size: 1rem; margin-bottom: 16px; position: relative; padding-bottom: 8px; }
.footer-col h3::after { content: ""; position: absolute; left: 0; bottom: 0; width: 26px; height: 2px; border-radius: 2px; background: var(--grad-accent); }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; font-size: 0.93rem; }
.footer-col a { color: rgba(255, 255, 255, 0.72); }
.footer-col a:hover { color: #fff; text-decoration: none; padding-left: 4px; }
.footer-col a { transition: padding-left 0.2s ease; }
.footer-about .brand { margin-bottom: 14px; }
.footer-about .brand-name { color: #fff; }
.footer-about .brand-sub { color: rgba(255, 255, 255, 0.5); }
.footer-about p { font-size: 0.93rem; margin-top: 6px; line-height: 1.8; }
.footer-contact li { display: flex; gap: 6px; align-items: baseline; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.1); padding: 18px 0; font-size: 0.85rem; }
.footer-bottom-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; }
.footer-bottom a { color: rgba(255, 255, 255, 0.6); }
.footer-bottom a:hover { color: #fff; }

/* ============ 内页 Hero ============ */
.page-hero { position: relative; background: linear-gradient(140deg, #072a63 0%, #0a3d91 45%, #1a6fe0 100%); color: #fff; padding: 60px 0 50px; overflow: hidden; }
.page-hero::before { content: ""; position: absolute; inset: 0; background-image: radial-gradient(rgba(255,255,255,0.12) 1.2px, transparent 1.2px); background-size: 26px 26px; opacity: 0.3; pointer-events: none; }
.page-hero-slim { padding: 44px 0 38px; }
.page-hero .container { position: relative; }
.page-hero h1 { color: #fff; margin: 12px 0 10px; }
.page-hero > .container > p { color: rgba(255, 255, 255, 0.92); font-size: 1.05rem; }
.page-hero time { color: rgba(255, 255, 255, 0.75); font-size: 0.9rem; }
.breadcrumb { display: inline-flex; align-items: center; gap: 8px; font-size: 0.88rem; color: rgba(255, 255, 255, 0.75); background: rgba(255, 255, 255, 0.1); padding: 5px 14px; border-radius: 999px; }
.breadcrumb a { color: rgba(255, 255, 255, 0.92); }
.breadcrumb a:hover { color: #fff; }
.article-summary { font-size: 1.06rem; margin-top: 6px; }

/* ============ 关于页 ============ */
.split { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 52px; align-items: center; }
.split-copy h2 { margin-bottom: 16px; }
.split-copy p { color: var(--muted); margin-bottom: 14px; }
.split-copy strong { color: var(--ink); }
.split-visual img { width: 100%; height: 360px; object-fit: cover; border-radius: var(--radius); box-shadow: var(--shadow); }
@media (max-width: 640px) { .split-visual img { height: 240px; } }
.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.value { background: #fff; border-radius: var(--radius); padding: 34px 28px; text-align: center; border: 1px solid var(--line); box-shadow: var(--shadow-sm); transition: transform 0.28s ease, box-shadow 0.28s ease; }
.value:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.value h3 { color: var(--brand-dark); margin-bottom: 10px; }
.value h3::after { content: ""; display: block; width: 34px; height: 3px; border-radius: 3px; background: var(--grad-accent); margin: 10px auto 0; }
.value p { color: var(--muted); font-size: 0.95rem; }
.timeline { list-style: none; max-width: 780px; margin: 0 auto; }
.timeline li { position: relative; padding: 0 0 36px 44px; border-left: 2px solid var(--line); }
.timeline li::before { content: ""; position: absolute; left: -8px; top: 2px; width: 14px; height: 14px; border-radius: 50%; background: var(--grad); box-shadow: 0 0 0 4px var(--brand-light); }
.timeline li:last-child { border-left-color: transparent; }
.timeline time { display: inline-block; background: linear-gradient(135deg, var(--brand-light), var(--brand-lighter)); color: var(--brand-2); font-weight: 800; border-radius: 8px; padding: 3px 12px; margin-bottom: 8px; box-shadow: inset 0 0 0 1px rgba(10, 61, 145, 0.08); }
.timeline h3 { margin-bottom: 6px; }
.timeline p { color: var(--muted); font-size: 0.95rem; }
.badge-list { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; max-width: 900px; margin: 0 auto; }
.badge-list li { position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 18px 20px; text-align: center; font-weight: 600; color: var(--brand-dark); box-shadow: var(--shadow-sm); transition: transform 0.25s ease, box-shadow 0.25s ease; }
.badge-list li::before { content: "✓"; display: inline-flex; width: 20px; height: 20px; margin-right: 8px; border-radius: 50%; background: var(--grad-accent); color: #fff; font-size: 0.72rem; align-items: center; justify-content: center; vertical-align: 2px; }
.badge-list li:hover { transform: translateY(-4px); box-shadow: var(--shadow); }

/* ============ 服务页 ============ */
.service-list { display: grid; gap: 26px; }
.service { position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 36px 32px; box-shadow: var(--shadow-sm); scroll-margin-top: 92px; transition: box-shadow 0.28s ease, transform 0.28s ease; }
.service:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.service::before { content: ""; position: absolute; left: 0; top: 24px; bottom: 24px; width: 4px; border-radius: 4px; background: var(--grad); }
.service h2 { color: var(--brand-dark); margin-bottom: 12px; }
.service p { color: var(--muted); margin-bottom: 16px; }
.service-points { list-style: none; display: flex; flex-wrap: wrap; gap: 10px; }
.service-points li { background: linear-gradient(135deg, var(--brand-light), var(--brand-lighter)); color: var(--brand-dark); font-size: 0.9rem; font-weight: 700; border-radius: 999px; padding: 7px 16px; box-shadow: inset 0 0 0 1px rgba(10, 61, 145, 0.08); }
.service-media { margin-bottom: 24px; }
.service-media img { display: block; width: 100%; height: 240px; object-fit: cover; border-radius: 14px; box-shadow: var(--shadow-sm); }
@media (max-width: 640px) { .service-media img { height: 200px; } }
.process { list-style: none; display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; position: relative; }
.process li { position: relative; background: #fff; border-radius: var(--radius); padding: 26px 18px 22px; text-align: center; border: 1px solid var(--line); box-shadow: var(--shadow-sm); transition: transform 0.28s ease, box-shadow 0.28s ease; }
.process li:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.process li:not(:last-child)::after { content: ""; position: absolute; right: -16px; top: 50%; width: 12px; height: 2px; background: var(--line); }
.process span { display: inline-flex; width: 46px; height: 46px; align-items: center; justify-content: center; border-radius: 50%; background: var(--grad); color: #fff; font-weight: 800; margin-bottom: 14px; box-shadow: 0 8px 18px rgba(26, 111, 224, 0.35); }
.process h3 { font-size: 1rem; margin-bottom: 8px; }
.process p { color: var(--muted); font-size: 0.88rem; }
.faq { display: grid; gap: 14px; }
.faq details { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 18px 22px; box-shadow: var(--shadow-sm); transition: border-color 0.25s ease, box-shadow 0.25s ease; }
.faq details[open] { border-color: rgba(26, 111, 224, 0.4); box-shadow: var(--shadow); }
.faq summary { font-weight: 700; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 1.4rem; font-weight: 400; color: var(--brand-2); transition: transform 0.25s ease; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq summary:hover { color: var(--brand-2); }
.faq p { color: var(--muted); margin-top: 12px; font-size: 0.95rem; }

/* ============ 文章 ============ */
.article { max-width: 780px; }
.article h2 { margin: 32px 0 14px; color: var(--brand-dark); position: relative; padding-left: 16px; }
.article h2::before { content: ""; position: absolute; left: 0; top: 8px; bottom: 8px; width: 5px; border-radius: 4px; background: var(--grad-accent); }
.article p { margin-bottom: 16px; color: #33415c; }
.article ol, .article ul { margin: 0 0 18px 24px; }
.article li { margin-bottom: 9px; }
.article strong { color: var(--ink); }
.article-end { margin-top: 28px; background: linear-gradient(135deg, var(--brand-light), var(--brand-lighter)); border-radius: var(--radius-sm); padding: 18px 22px; border-left: 4px solid var(--brand-2); }
.article-back { margin-top: 22px; }

/* ============ 联系页 ============ */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 44px; align-items: start; }
.contact-info h2 { color: var(--brand-dark); margin: 24px 0 12px; }
.contact-info h2:first-child { margin-top: 0; }
.contact-list { list-style: none; }
.contact-list li { padding: 11px 0; border-bottom: 1px dashed var(--line); font-size: 0.98rem; }
.contact-list li:last-child { border-bottom: 0; }
.contact-list strong { display: inline-block; width: 92px; color: var(--muted); font-weight: 700; }
.contact-form-wrap { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 36px; box-shadow: var(--shadow); }
.contact-form-wrap h2 { margin-bottom: 6px; }
.contact-form { margin-top: 22px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-field { margin-bottom: 16px; }
.form-field label { display: block; font-weight: 700; margin-bottom: 7px; font-size: 0.95rem; }
.form-field .req { color: #d64545; }
.form-field input, .form-field textarea { width: 100%; border: 1.5px solid var(--line); border-radius: var(--radius-sm); padding: 13px 15px; font-size: 1rem; font-family: inherit; background: var(--brand-lighter); transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease; }
.form-field input:focus, .form-field textarea:focus { outline: none; border-color: var(--brand-2); background: #fff; box-shadow: 0 0 0 4px rgba(26, 111, 224, 0.12); }
.form-field input::placeholder, .form-field textarea::placeholder { color: #9aa8bd; }
.form-note { margin-top: 14px; font-size: 0.82rem; color: var(--muted); }
.map-note { color: var(--muted); text-align: center; }

/* ============ 微信名片 ============ */
.wechat-card { position: relative; display: inline-block; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); text-align: center; }
.wechat-card::before { content: ""; position: absolute; inset: -2px; border-radius: 18px; background: var(--grad); opacity: 0.35; z-index: -1; filter: blur(8px); }
.wechat-card img { border-radius: var(--radius-sm); margin: 0 auto 14px; box-shadow: var(--shadow-sm); }
.wechat-card p { color: var(--muted); font-size: 0.95rem; max-width: 360px; margin: 0 auto; }
.contact-wechat { margin-top: 8px; text-align: center; }

/* ============ 404 ============ */
.error-page { text-align: center; padding: 100px 0; }
.error-code { font-size: 5.4rem; font-weight: 800; background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; line-height: 1; }
.error-page h1 { margin: 14px 0 10px; }
.error-page p { color: var(--muted); margin-bottom: 28px; }
.error-page .hero-actions { justify-content: center; }

/* ============ 返回顶部 ============ */
.to-top { position: fixed; right: 26px; bottom: 26px; z-index: 90; width: 46px; height: 46px; border-radius: 50%; border: 0; background: var(--grad); color: #fff; font-size: 1.2rem; cursor: pointer; box-shadow: 0 10px 24px rgba(10, 61, 145, 0.35); opacity: 0; visibility: hidden; transform: translateY(12px); transition: all 0.3s ease; }
.to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { transform: translateY(-3px); box-shadow: 0 14px 30px rgba(10, 61, 145, 0.45); }

/* ============ 响应式 ============ */
@media (max-width: 960px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .quote-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .split, .contact-grid, .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { order: -1; max-width: 500px; }
  .hero-chip { left: 10px; bottom: 14px; }
  .process { grid-template-columns: repeat(2, 1fr); }
  .process li:not(:last-child)::after { display: none; }
  .badge-list { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .section { padding: 56px 0; }
  .nav-toggle { display: flex; }
  .site-nav { position: fixed; inset: 70px 12px auto 12px; background: #fff; border: 1px solid var(--line); border-radius: 14px; flex-direction: column; gap: 0; padding: 12px 18px 18px; transform: translateY(-140%); transition: transform 0.3s ease; box-shadow: var(--shadow-lg); }
  .site-nav.open { transform: translateY(0); }
  .nav-list { flex-direction: column; width: 100%; gap: 0; }
  .nav-list a { display: block; padding: 13px 4px; border-bottom: 1px solid var(--line); }
  .nav-list a::after { display: none; }
  .nav-cta { margin-top: 14px; width: 100%; }
  .card-grid, .feature-grid, .value-grid, .stats-grid, .footer-grid, .process, .badge-list { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .hero { padding: 52px 0 48px; }
  .hero-inner { gap: 30px; }
  .hero-trust { gap: 14px; flex-direction: column; align-items: flex-start; }
  .footer-bottom-inner { flex-direction: column; text-align: center; }
  .to-top { right: 16px; bottom: 16px; }
}

/* ============ 顶栏联系方式 ============ */
.topbar { background: var(--brand-dark); color: rgba(255,255,255,0.92); font-size: 0.85rem; }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; gap: 12px 24px; padding: 9px 20px; flex-wrap: wrap; }
.topbar a { color: var(--accent-2); font-weight: 700; }
.topbar a:hover { color: #fff; }
.topbar .topbar-left::before { content: "✦ "; color: var(--accent-2); }

/* ============ 首页联系名片（电话 + 微信二维码） ============ */
.hero-contact { background: rgba(255,255,255,0.97); color: var(--ink); border-radius: 22px; padding: 30px 28px; box-shadow: var(--shadow-lg); text-align: center; position: relative; }
.hero-contact-label { color: var(--brand-2); font-weight: 800; letter-spacing: 0.14em; font-size: 0.8rem; margin-bottom: 12px; }
.hero-phone { display: inline-block; font-size: 1.9rem; font-weight: 900; color: var(--brand-dark); letter-spacing: 0.02em; }
.hero-phone:hover { color: var(--brand-2); }
.hero-contact-sub { color: var(--muted); font-size: 0.88rem; margin: 6px 0 18px; }
.hero-qr { max-width: 216px; margin: 0 auto 18px; }
.hero-qr img { border-radius: 14px; border: 1px solid var(--line); box-shadow: var(--shadow-sm); }
.hero-qr p { font-size: 0.86rem; color: var(--muted); margin-top: 8px; }
@media (max-width: 720px) {
  .hero-phone { font-size: 1.6rem; }
  .topbar-inner { justify-content: center; text-align: center; }
}

/* ============ 首页 Hero 实景背景 ============ */
.hero {
  background:
    linear-gradient(100deg, rgba(7, 42, 99, 0.94) 0%, rgba(10, 61, 145, 0.84) 42%, rgba(14, 84, 196, 0.66) 72%, rgba(26, 111, 224, 0.45) 100%),
    url("../images/hero-bg.jpg") center / cover no-repeat;
}
.hero::before { opacity: 0.18; -webkit-mask-image: none; mask-image: none; }

/* ============ 首页实力展示（实景图） ============ */
.showcase-banner { position: relative; border-radius: 22px; overflow: hidden; box-shadow: var(--shadow); margin-bottom: 26px; }
.showcase-banner img { width: 100%; height: 340px; object-fit: cover; display: block; }
.showcase-banner::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(7, 42, 99, 0.82) 0%, rgba(7, 42, 99, 0.3) 55%, rgba(7, 42, 99, 0.05) 100%); pointer-events: none; }
.showcase-banner-cap { position: absolute; left: 36px; bottom: 32px; right: 36px; color: #fff; z-index: 2; max-width: 560px; }
.showcase-banner-cap strong { display: block; font-size: clamp(1.35rem, 2.6vw, 1.9rem); font-weight: 800; letter-spacing: 0.02em; margin-bottom: 10px; text-shadow: 0 2px 14px rgba(0, 0, 0, 0.35); }
.showcase-banner-cap span { font-size: 0.98rem; color: rgba(255, 255, 255, 0.94); text-shadow: 0 1px 8px rgba(0, 0, 0, 0.3); }
.gallery-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.gallery-item { position: relative; border-radius: 16px; overflow: hidden; margin: 0; box-shadow: var(--shadow-sm); transition: transform 0.3s ease, box-shadow 0.3s ease; }
.gallery-item:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.gallery-item img { width: 100%; height: 230px; object-fit: cover; transition: transform 0.5s ease; }
.gallery-item:hover img { transform: scale(1.06); }
.gallery-item figcaption { position: absolute; left: 0; right: 0; bottom: 0; padding: 30px 16px 13px; font-size: 0.95rem; font-weight: 700; color: #fff; background: linear-gradient(transparent, rgba(7, 42, 99, 0.85)); }

/* 首页竖版现场实拍 */
.real-more { display: grid; grid-template-columns: repeat(2, minmax(0, 460px)); gap: 26px; justify-content: center; }
.real-more-item { margin: 0; }
.real-more-item img { width: 100%; height: auto; border-radius: 16px; box-shadow: var(--shadow-sm); display: block; }
.real-more-item figcaption { text-align: center; margin-top: 12px; color: var(--muted); font-weight: 700; font-size: 0.95rem; }
@media (max-width: 640px) { .real-more { grid-template-columns: 1fr; } }
.showcase-cta { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; margin-top: 34px; }
.showcase-cta a { border-bottom: none !important; padding-bottom: 0 !important; }
@media (max-width: 960px) {
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .showcase-banner img { height: 270px; }
}
@media (max-width: 640px) {
  .gallery-grid { grid-template-columns: 1fr; }
  .showcase-banner img { height: 230px; }
  .showcase-banner-cap { left: 20px; right: 20px; bottom: 20px; }
  .gallery-item img { height: 210px; }
}