/* ===== 搜糯科技 官网样式 ===== */
:root {
  --blue: #4285F4;
  --red: #EA4335;
  --yellow: #FBBC05;
  --green: #34A853;
  --text: #202124;
  --text-secondary: #5f6368;
  --surface: #f8f9fa;
  --border: #e8eaed;
  --maxw: 1280px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: #fff;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }

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

/* ===== 导航 ===== */
.header {
  position: sticky; top: 0; z-index: 50;
  background: #fff; border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; }
.logo { width: 36px; height: 36px; border-radius: 8px; }
.brand-name { font-size: 18px; font-weight: 600; }
.nav-links { display: flex; gap: 28px; align-items: center; }
.nav-links a { color: var(--text-secondary); font-size: 15px; transition: color .2s; }
.nav-links a:hover { color: var(--text); }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 11px 24px; border-radius: 8px; font-size: 15px; font-weight: 500;
  transition: box-shadow .2s, background .2s, transform .1s;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { box-shadow: 0 6px 16px -4px rgba(66, 133, 244, .55); }
.btn-outline { border: 1px solid var(--border); color: var(--text); background: #fff; }
.btn-outline:hover { background: var(--surface); }
.nav-cta { padding: 8px 20px; font-size: 14px; }

/* ===== Hero ===== */
.hero {
  background: linear-gradient(180deg, #eaf2ff 0%, #ffffff 72%);
  padding: 72px 24px 0; text-align: center;
}
.hero-inner { max-width: 768px; margin: 0 auto; padding: 56px 0 64px; }
.badge {
  display: inline-block; font-size: 14px; color: var(--blue);
  background: rgba(66, 133, 244, .1); padding: 6px 16px; border-radius: 999px; margin-bottom: 24px;
}
.hero-title { font-size: clamp(34px, 6vw, 56px); font-weight: 700; line-height: 1.25; letter-spacing: -.01em; }
.hero-sub { margin: 20px auto 0; max-width: 560px; color: var(--text-secondary); font-size: 17px; }
.hero-cta { margin-top: 36px; display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.color-bar {
  height: 4px;
  background: linear-gradient(90deg, var(--blue) 0%, var(--red) 33%, var(--yellow) 66%, var(--green) 100%);
}

/* ===== 通用 section ===== */
.section { padding: 80px 24px; }
.section-surface { background: var(--surface); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.section-head h2 { font-size: 30px; font-weight: 600; }
.section-head p { margin-top: 12px; color: var(--text-secondary); font-size: 16px; }

/* ===== 卡片 ===== */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  background: #fff; border: 1px solid var(--border); border-radius: 14px;
  padding: 32px 28px; display: flex; flex-direction: column; transition: box-shadow .2s, transform .2s;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 16px 32px -12px rgba(0,0,0,.15); }
.card-icon {
  width: 48px; height: 48px; border-radius: 10px; color: #fff;
  display: flex; align-items: center; justify-content: center; margin-bottom: 20px;
}
.card-icon svg { width: 24px; height: 24px; }
.bg-blue { background: var(--blue); }
.bg-red { background: var(--red); }
.bg-green { background: var(--green); }
.card h3 { font-size: 19px; font-weight: 600; margin-bottom: 10px; }
.card p { color: var(--text-secondary); font-size: 14px; line-height: 1.7; margin-bottom: 18px; }
.link { font-size: 14px; font-weight: 500; }
.link-blue { color: var(--blue); }
.link-red { color: var(--red); }
.link-green { color: var(--green); }

/* ===== 卡片清单 ===== */
.card-list { list-style: none; margin-top: 16px; display: flex; flex-direction: column; gap: 8px; }
.card-list li { color: var(--text-secondary); font-size: 14px; padding-left: 16px; position: relative; }
.card-list li::before {
  content: ""; position: absolute; left: 0; top: 9px;
  width: 6px; height: 6px; border-radius: 50%; background: var(--blue);
}

/* ===== 技术能力 ===== */
.tech-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.tech-card {
  display: flex; align-items: center; gap: 12px;
  background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 18px 20px;
  transition: transform .2s, box-shadow .2s;
}
.tech-card:hover { transform: translateY(-3px); box-shadow: 0 10px 22px -10px rgba(0,0,0,.14); }
.tech-icon { font-size: 24px; }
.tech-card b { font-size: 15px; font-weight: 600; }

/* ===== 服务流程 ===== */
.steps { list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.steps li {
  background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 28px 24px;
  transition: transform .2s, box-shadow .2s;
}
.steps li:hover { transform: translateY(-3px); box-shadow: 0 12px 24px -10px rgba(0,0,0,.14); }
.step-no { font-size: 28px; font-weight: 700; color: var(--blue); display: block; margin-bottom: 8px; }
.steps h3 { font-size: 17px; font-weight: 600; margin-bottom: 6px; }
.steps p { color: var(--text-secondary); font-size: 14px; }

/* ===== 我们的优势 ===== */
.adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.adv-card {
  background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 28px 24px;
  text-align: center; transition: transform .2s, box-shadow .2s;
}
.adv-card:hover { transform: translateY(-3px); box-shadow: 0 12px 24px -10px rgba(0,0,0,.14); }
.adv-icon { font-size: 32px; display: block; margin-bottom: 14px; }
.adv-card h3 { font-size: 17px; font-weight: 600; margin-bottom: 6px; }
.adv-card p { color: var(--text-secondary); font-size: 14px; }

/* ===== 关于 ===== */
.about-inner { max-width: 800px; text-align: center; }
.about-body { text-align: left; }
.about-body p { color: var(--text-secondary); font-size: 16px; margin-bottom: 16px; }

/* ===== 联系我们 ===== */
.contact-inner { max-width: 720px; }
.contact-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.contact-card {
  background: #fff; border: 1px solid var(--border); border-radius: 12px;
  padding: 24px; display: flex; flex-direction: column; gap: 6px;
}
.contact-label { color: var(--text-secondary); font-size: 13px; }

/* ===== 页脚 ===== */
.footer { background: var(--surface); border-top: 1px solid var(--border); margin-top: auto; }
.footer-inner {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr; gap: 32px; padding: 56px 24px 40px;
}
.footer-brand p { color: var(--text-secondary); font-size: 14px; margin-top: 14px; max-width: 380px; }
.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-col h4 { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.footer-col a, .footer-col span { color: var(--text-secondary); font-size: 14px; }
.footer-col a:hover { color: var(--text); }
.footer-bottom { border-top: 1px solid var(--border); padding: 18px 24px; }
.footer-bottom .container {
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px;
}
.footer-bottom p, .footer-bottom a { color: var(--text-secondary); font-size: 13px; }

/* ===== 响应式 ===== */
@media (max-width: 900px) {
  .cards { grid-template-columns: 1fr; }
  .tech-grid, .steps, .adv-grid { grid-template-columns: 1fr 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
}
@media (max-width: 560px) {
  .tech-grid, .steps, .adv-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .contact-cards { grid-template-columns: 1fr; }
}