/* 东莞市蓝盛贸易有限公司 官网样式
   纯静态，无外部字体/图片依赖 */

:root {
  --blue-900: #062166;
  --blue-800: #0b2f8f;
  --blue-700: #123b9e;
  --blue-600: #1b4fff;
  --blue-500: #2f6bff;
  --blue-300: #7aa5ff;
  --blue-050: #f2f6ff;
  --ink: #101828;
  --ink-2: #344054;
  --ink-3: #667085;
  --line: #e4e9f2;
  --white: #ffffff;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 2px rgba(16, 24, 40, .06), 0 4px 12px rgba(16, 24, 40, .06);
  --shadow-md: 0 8px 30px rgba(11, 47, 143, .10);
  --container: 1160px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC",
    "Noto Sans CJK SC", "WenQuanYi Micro Hei", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; }
a { color: var(--blue-600); text-decoration: none; }
a:hover { color: var(--blue-700); }

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

/* ---------- 头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.site-header.is-scrolled { border-bottom-color: var(--line); box-shadow: 0 4px 20px rgba(16, 24, 40, .05); }

.header-inner { display: flex; align-items: center; gap: 16px; min-height: 72px; }

.brand { display: flex; align-items: center; gap: 12px; color: var(--ink); }
.brand:hover { color: var(--ink); }
.brand-mark { display: inline-flex; color: var(--blue-600); }
.brand-text { display: flex; flex-direction: column; line-height: 1.3; }
.brand-text strong { font-size: 17px; letter-spacing: .2px; }
.brand-text em { font-style: normal; font-size: 12px; color: var(--ink-3); }

.site-nav { margin-left: auto; display: flex; align-items: center; gap: 6px; }
.site-nav a {
  color: var(--ink-2);
  font-size: 15px;
  padding: 9px 14px;
  border-radius: 999px;
  transition: background .18s ease, color .18s ease;
}
.site-nav a:hover { background: var(--blue-050); color: var(--blue-700); }
.site-nav a.nav-cta { background: var(--blue-600); color: var(--white); }
.site-nav a.nav-cta:hover { background: var(--blue-700); color: var(--white); }

.nav-toggle {
  display: none;
  margin-left: auto;
  width: 42px; height: 42px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--white);
  cursor: pointer;
  padding: 11px 10px;
  flex-direction: column;
  justify-content: space-between;
}
.nav-toggle span { display: block; height: 2px; background: var(--ink-2); border-radius: 2px; }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; background: var(--white); }
.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(900px 420px at 88% -10%, rgba(47, 107, 255, .16), transparent 70%),
    radial-gradient(700px 420px at 8% 110%, rgba(27, 79, 255, .10), transparent 70%);
  pointer-events: none;
}
.hero-inner { position: relative; padding: 84px 24px 72px; }

.hero-eyebrow {
  display: inline-block;
  margin: 0 0 18px;
  padding: 6px 14px;
  font-size: 13px;
  letter-spacing: 1px;
  color: var(--blue-700);
  background: var(--blue-050);
  border: 1px solid rgba(27, 79, 255, .16);
  border-radius: 999px;
}
.hero h1 {
  margin: 0 0 20px;
  font-size: clamp(30px, 5vw, 52px);
  line-height: 1.22;
  letter-spacing: -.5px;
}
.hero h1 .accent { color: var(--blue-600); }
.hero-sub { max-width: 720px; margin: 0 0 32px; color: var(--ink-2); font-size: 17px; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 52px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  transition: transform .16s ease, box-shadow .16s ease, background .16s ease;
}
.btn-primary { background: var(--blue-600); color: var(--white); box-shadow: 0 8px 22px rgba(27, 79, 255, .28); }
.btn-primary:hover { background: var(--blue-700); color: var(--white); transform: translateY(-1px); }
.btn-ghost { background: var(--white); color: var(--blue-700); border: 1px solid rgba(27, 79, 255, .28); }
.btn-ghost:hover { background: var(--blue-050); color: var(--blue-700); }
.btn-block { width: 100%; margin-top: 12px; }

.hero-points {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin: 0; padding: 0;
  list-style: none;
}
.hero-points li {
  padding: 20px 22px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.hero-points b { display: block; font-size: 16px; margin-bottom: 4px; }
.hero-points span { font-size: 14px; color: var(--ink-3); }

/* ---------- 通用区块 ---------- */
.section { padding: 84px 0; }
.section-alt { background: var(--blue-050); }

.section-head { max-width: 720px; margin-bottom: 48px; }
.section-eyebrow {
  margin: 0 0 10px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--blue-600);
}
.section-head h2 { margin: 0 0 14px; font-size: clamp(26px, 3.4vw, 38px); line-height: 1.3; }
.section-desc { margin: 0; color: var(--ink-3); }

/* ---------- 关于我们 ---------- */
.about-grid { display: grid; grid-template-columns: 1.35fr 1fr; gap: 44px; align-items: start; }
.about-text p { margin: 0 0 18px; color: var(--ink-2); }
.about-list { margin: 26px 0 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.about-list li { display: flex; align-items: flex-start; gap: 10px; color: var(--ink-2); font-size: 15px; }
.tick {
  flex: none;
  width: 20px; height: 20px;
  margin-top: 4px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: rgba(27, 79, 255, .10);
  color: var(--blue-600);
  font-size: 12px; font-weight: 700;
}

.about-cards { display: grid; gap: 16px; }
.mini-card {
  padding: 22px 24px;
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 3px solid var(--blue-600);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}
.mini-card h3 { margin: 0 0 8px; font-size: 17px; }
.mini-card p { margin: 0; color: var(--ink-3); font-size: 15px; }

/* ---------- 核心服务 ---------- */
.service-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.service-card {
  display: flex; flex-direction: column;
  padding: 32px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: rgba(27, 79, 255, .28); }
.service-icon {
  width: 60px; height: 60px;
  display: inline-flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--blue-600), var(--blue-800));
  color: var(--white);
}
.service-card h3 { margin: 0 0 12px; font-size: 21px; }
.service-card h3 .en { display: block; margin-top: 4px; font-size: 12px; font-weight: 500; letter-spacing: 1px; color: var(--ink-3); }
.service-card p { margin: 0 0 20px; color: var(--ink-2); font-size: 15px; }

.tag-list { display: flex; flex-wrap: wrap; gap: 8px; margin: auto 0 0; padding: 0; list-style: none; }
.tag-list li {
  padding: 5px 12px;
  font-size: 13px;
  color: var(--blue-700);
  background: var(--blue-050);
  border: 1px solid rgba(27, 79, 255, .14);
  border-radius: 999px;
}

/* ---------- 案例展示 ---------- */
.case-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.case-card {
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: transform .2s ease, box-shadow .2s ease;
}
.case-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.case-cover { line-height: 0; }
.case-cover svg { display: block; width: 100%; height: auto; }
.case-body { padding: 22px 26px 26px; }
.case-body h3 { margin: 0 0 8px; font-size: 18px; }
.case-body p { margin: 0; color: var(--ink-3); font-size: 15px; }

/* ---------- 联系我们 ---------- */
.contact-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 22px; align-items: start; }
.contact-card {
  padding: 32px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.contact-card h3 { margin: 0 0 20px; font-size: 19px; }
.contact-list { margin: 0; padding: 0; list-style: none; }
.contact-list li {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--line);
}
.contact-list li:last-child { border-bottom: 0; }
.contact-label { color: var(--ink-3); font-size: 15px; }
.contact-value { color: var(--ink); font-size: 15px; word-break: break-all; }
.contact-value a { font-weight: 600; }

.step-list { margin: 0 0 22px; padding: 0; list-style: none; counter-reset: step; }
.step-list li { position: relative; padding: 0 0 18px 42px; }
.step-list li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute; left: 0; top: 2px;
  width: 26px; height: 26px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: var(--blue-600); color: var(--white);
  font-size: 13px; font-weight: 700;
}
.step-list b { display: block; font-size: 15px; }
.step-list span { font-size: 14px; color: var(--ink-3); }

/* ---------- 页脚 ---------- */
.site-footer { padding: 56px 0 34px; background: var(--blue-900); color: rgba(255, 255, 255, .76); }
.footer-inner {
  display: flex; flex-wrap: wrap; gap: 20px;
  align-items: center; justify-content: space-between;
  padding-bottom: 26px;
  border-bottom: 1px solid rgba(255, 255, 255, .14);
}
.footer-brand strong { display: block; font-size: 18px; color: var(--white); }
.footer-brand p { margin: 6px 0 0; font-size: 14px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 22px; }
.footer-links a { color: rgba(255, 255, 255, .82); font-size: 15px; }
.footer-links a:hover { color: var(--white); }

.footer-legal { padding-top: 22px; font-size: 14px; }
.footer-legal p { margin: 0 0 8px; }
.footer-legal a { color: var(--blue-300); }
.footer-legal a:hover { color: var(--white); }
.footer-copy { color: rgba(255, 255, 255, .55); }

/* ---------- 滚动进场 ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .btn, .service-card, .case-card { transition: none; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 28px; }
  .hero-points { grid-template-columns: 1fr; }
}

@media (max-width: 820px) {
  .brand-text em { display: none; }
  .nav-toggle { display: flex; }
  .site-nav {
    position: absolute;
    left: 16px; right: 16px; top: 76px;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 12px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    display: none;
  }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 12px 14px; border-radius: var(--radius-sm); }
  .site-nav a.nav-cta { text-align: center; }
  .header-inner { position: relative; }
}

@media (max-width: 640px) {
  body { font-size: 15px; }
  .section { padding: 60px 0; }
  .hero-inner { padding: 56px 24px 52px; }
  .service-grid, .case-grid { grid-template-columns: 1fr; }
  .about-list { grid-template-columns: 1fr; }
  .service-card, .contact-card, .mini-card { padding: 24px; }
  .contact-list li { grid-template-columns: 1fr; gap: 2px; }
}