/* ===== 清远凡讯信息科技有限公司 · 官网样式(蓝色品牌色,对齐 logo) ===== */
:root {
  --blue: #0a6cb4;        /* 主蓝(取自 logo) */
  --blue-bright: #2f8fd8; /* 渐变亮端 */
  --blue-deep: #143a8f;   /* 渐变深端 / 深蓝 */
  --ink: #102a52;         /* 标题/导航 深海军蓝 */
  --text: #33414f;
  --muted: #6a7c8c;
  --line: #e4ecf5;
  --bg: #ffffff;
  --bg-alt: #f4f8fc;
  --soft: #e9f3fc;        /* 浅蓝底(标签/图标底) */
  --soft-border: #cfe3f7;
  --radius: 16px;
  --shadow: 0 10px 30px rgba(10, 108, 180, 0.10);
  --maxw: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

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

.mono { font-family: "SF Mono", ui-monospace, Menlo, Consolas, monospace; letter-spacing: 0.3px; }
.muted { color: var(--muted); }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 66px; }
.brand { display: flex; align-items: center; gap: 12px; color: var(--ink); }
.brand:hover { text-decoration: none; }
.brand-logo { height: 34px; width: auto; display: block; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-size: 17px; letter-spacing: 0.5px; }
.brand-text em { font-style: normal; font-size: 11px; color: var(--muted); letter-spacing: 1px; }
.site-nav { display: flex; gap: 28px; }
.site-nav a { color: var(--text); font-size: 15px; }
.site-nav a:hover { color: var(--blue); text-decoration: none; }

/* ===== Hero ===== */
.hero {
  background:
    radial-gradient(900px 400px at 85% -10%, rgba(47, 143, 216, 0.20), transparent 60%),
    linear-gradient(180deg, #f2f8fe 0%, #ffffff 100%);
  border-bottom: 1px solid var(--line);
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: 48px;
  align-items: center;
  padding: 78px 24px 84px;
}
.eyebrow {
  display: inline-block;
  margin: 0 0 14px;
  padding: 5px 14px;
  font-size: 13px;
  color: var(--blue);
  background: var(--soft);
  border: 1px solid var(--soft-border);
  border-radius: 999px;
}
.hero h1 { margin: 0 0 8px; font-size: 38px; line-height: 1.25; color: var(--ink); letter-spacing: 0.5px; }
.hero-en { margin: 0 0 22px; font-size: 16px; color: var(--muted); letter-spacing: 0.5px; }
.hero-lead { margin: 0 0 14px; font-size: 16.5px; max-width: 560px; }
.hero-lead-en { font-size: 14px; color: var(--muted); }
.hero-actions { margin-top: 30px; display: flex; gap: 14px; flex-wrap: wrap; }
.hero-art { display: flex; justify-content: center; }
.hero-logo {
  width: 100%;
  max-width: 470px;
  height: auto;
  display: block;
  filter: drop-shadow(0 14px 34px rgba(16, 42, 82, 0.14));
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 24px; border-radius: 999px; font-size: 15px; font-weight: 500;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { color: #fff; background: linear-gradient(135deg, var(--blue-bright), var(--blue-deep)); box-shadow: var(--shadow); }
.btn-primary:hover { box-shadow: 0 14px 34px rgba(10, 108, 180, 0.26); }
.btn-ghost { color: var(--blue); background: #fff; border: 1px solid var(--soft-border); }
.btn-ghost:hover { background: var(--soft); }

/* ===== Sections ===== */
.section { padding: 76px 0; }
.section-alt { background: var(--bg-alt); }
.section-head { margin-bottom: 40px; }
.section-head h2 { margin: 0; font-size: 28px; color: var(--ink); letter-spacing: 0.5px; }
.section-en { display: inline-block; margin-top: 6px; font-size: 13px; color: var(--muted); letter-spacing: 2px; text-transform: uppercase; }

/* ===== About ===== */
.about-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; align-items: start; }
.about-text p { margin: 0 0 16px; font-size: 16px; }
.about-en { color: var(--muted); font-size: 14px; }
.value-list { list-style: none; margin: 26px 0 0; padding: 0; display: grid; gap: 14px; }
.value-list li { display: flex; align-items: flex-start; gap: 14px; }
.value-list .vi {
  flex: 0 0 auto; width: 38px; height: 38px; border-radius: 11px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--soft); color: var(--blue); font-size: 18px;
}
.value-list li div { display: flex; flex-direction: column; }
.value-list li strong { color: var(--ink); font-size: 15.5px; }
.value-list li em { font-style: normal; font-size: 12.5px; color: var(--muted); }

.about-facts {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 28px; box-shadow: var(--shadow);
}
.about-facts h3 { margin: 0 0 18px; font-size: 17px; color: var(--ink); }
.about-facts h3 span { font-size: 12px; color: var(--muted); font-weight: 400; letter-spacing: 1px; }
.about-facts dl { margin: 0; }
.about-facts dt { font-size: 12.5px; color: var(--muted); margin-top: 16px; letter-spacing: 0.3px; }
.about-facts dt:first-child { margin-top: 0; }
.about-facts dd { margin: 5px 0 0; font-size: 15px; color: var(--ink); }
.about-facts dd .muted { font-size: 13px; }

/* ===== Cards ===== */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 26px; transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.card-feature { border-color: var(--soft-border); background: linear-gradient(180deg, #ffffff, #f2f8fe); }
.card-icon { margin-bottom: 16px; }
.card h3 { margin: 0 0 4px; font-size: 18px; color: var(--ink); }
.card-en { margin: 0 0 12px; font-size: 12.5px; color: var(--muted); letter-spacing: 0.5px; }
.card p { margin: 0; font-size: 14.5px; }

/* ===== Scope ===== */
.scope-box {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 32px; box-shadow: var(--shadow);
}
.scope-sub { margin: 0 0 10px; font-size: 16px; color: var(--blue); }
.scope-sub span { font-size: 12px; color: var(--muted); font-weight: 400; letter-spacing: 1px; margin-left: 6px; }
.scope-box p { margin: 0 0 22px; font-size: 15px; }
.tags { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 14px; }
.tags span {
  display: inline-block; padding: 7px 15px; font-size: 14px; color: var(--ink);
  background: var(--soft); border: 1px solid var(--soft-border); border-radius: 999px;
}
.scope-note { color: var(--muted); font-size: 13.5px; margin: 6px 0 0 !important; }

/* ===== Contact ===== */
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.contact-item {
  display: flex; gap: 16px; align-items: flex-start;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px 24px; box-shadow: var(--shadow);
}
.contact-ic {
  flex: 0 0 auto; width: 44px; height: 44px; border-radius: 12px;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 20px; color: #fff;
  background: linear-gradient(135deg, var(--blue-bright), var(--blue-deep));
}
.contact-item h4 { margin: 0 0 6px; font-size: 14px; color: var(--muted); font-weight: 500; }
.contact-item p, .contact-item a { margin: 0; font-size: 15px; color: var(--ink); word-break: break-word; }

/* ===== Footer ===== */
.site-footer { background: var(--ink); color: #c8d8ec; padding: 40px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.footer-brand { display: flex; flex-direction: column; gap: 3px; }
.footer-brand strong { color: #fff; font-size: 16px; }
.footer-brand span { font-size: 12px; color: #93accb; }
.footer-meta { text-align: right; font-size: 13px; }
.footer-meta p { margin: 2px 0; }
.footer-meta a { color: #9ec5ee; }
.icp a { color: #93accb; }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 32px; padding: 56px 24px 60px; }
  .hero-art { order: -1; }
  .hero-logo { max-width: 380px; }
  .hero h1 { font-size: 30px; }
  .about-grid { grid-template-columns: 1fr; gap: 28px; }
  .cards, .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .site-nav { display: none; }
  .section { padding: 52px 0; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .footer-meta { text-align: left; }
}