/* 途鹿官网 · 全站共享（2026-09 色系收口）
   语义：brand 品牌红 / accent·success 成功绿 / ink·gray 中性
   CTA 与强调用品牌红；绿色只表示「完成、可、正向」 */
:root {
  /* type scale */
  --font-hero: 48px;
  --font-h2: 28px;
  --font-h3: 20px;
  --font-card: 18px;
  --font-body: 15px;
  --font-lead: 16px;
  --font-small: 13px;
  --font-xs: 12px;
  /* radius */
  --r-btn: 10px;
  --r-card: 14px;
  --r-media: 18px;
  --r-pill: 999px;
  /* space */
  --sp-section: 72px;
  --sp-card: 24px;
  /* 品牌 */
  --primary: #A63440;
  --primary-dark: #7E2833;
  --primary-soft: #F3D8DB;
  --primary-wash: #F8EFF0;
  --primary-on-dark: #E8A8AE;
  --accent: #2F9E5F;
  --success: #2F9E5F;
  /* 中性 */
  --ink: #1B2430;
  --dark: #1B2430;
  --gray: #6E7C91;
  --gray-soft: #8B97A8;
  --light: #F7F9FB;
  --card: #FFFFFF;
  --border: #E3E8EF;
  --radius: 14px;
  --nav-h: 64px;
  --shadow: 0 10px 30px rgba(27, 36, 48, 0.08);
}
*, *::before, *::after { box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  color: var(--dark);
  background: var(--light);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
.zh { display: inline; }
.en { display: none; }
body.lang-en .zh { display: none; }
body.lang-en .en { display: inline; }

.lang-switch {
  background: transparent;
  border: 1.5px solid var(--border);
  color: var(--gray);
  font-size: 14px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 8px;
  cursor: pointer;
  transition: all .2s;
  margin-left: 12px;
  white-space: nowrap;
}
.lang-switch:hover { border-color: var(--primary); color: var(--primary); }

.navbar {
  position: fixed; top: 0; left: 0; right: 0;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(27,36,48,0.06);
  z-index: 1000;
  padding: 0 40px;
}
.navbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
}
.nav-logo {
  font-size: 20px; font-weight: 800; color: var(--dark);
  display: flex; align-items: center; gap: 8px; text-decoration: none;
}
.nav-logo:hover { text-decoration: none; }
.nav-logo img { width: 34px; height: 34px; object-fit: contain; }
.nav-right { display: flex; align-items: center; }
.nav-toggle {
  display: none;
  background: none; border: none; font-size: 22px;
  color: var(--dark); cursor: pointer;
}
.nav-links {
  display: flex; gap: 22px; list-style: none; align-items: center; margin: 0; padding: 0;
}
.nav-links a {
  color: var(--gray); font-size: 15px; font-weight: 500;
  transition: color .2s;
}
.nav-links a:hover,
.nav-links a.on { color: var(--primary); text-decoration: none; }
.nav-cta {
  background: var(--primary) !important;
  color: #fff !important;
  padding: 8px 16px;
  border-radius: 8px;
}
.nav-cta:hover { background: var(--primary-dark) !important; text-decoration: none; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 22px; border-radius: 8px;
  font-weight: 700; font-size: 15px;
  margin: 0 8px 8px 0;
}
.btn-accent { background: var(--primary); color: #fff; }
.btn-accent:hover { background: var(--primary-dark); text-decoration: none; color: #fff; }
.btn-outline { border: 1.5px solid var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; text-decoration: none; }

.page {
  padding-top: calc(var(--nav-h) + 28px);
  max-width: 1120px;
  margin: 0 auto;
  padding-left: 24px; padding-right: 24px;
  padding-bottom: 64px;
}

@media (max-width: 900px) {
  .navbar { padding: 0 16px; }
  .nav-toggle { display: block; }
  .nav-links {
    display: none;
    position: absolute; top: var(--nav-h); left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--border);
    flex-direction: column; align-items: stretch;
    gap: 0; padding: 8px 16px 16px;
  }
  .nav-links.open { display: flex; }
  .nav-links a { display: block; padding: 12px 8px; }
  .page { padding-top: calc(var(--nav-h) + 16px); }
}

/* ── 移动端通用 ───────────────────────────── */
img { max-width: 100%; height: auto; }
table { display: block; width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }
.spec, .spec table { min-width: 520px; }

.hero-grid,
.tabs,
.scenes,
.related,
.combo,
.biz,
.case-row,
.team-grid,
.scope-grid,
.featured-products,
.pricing-tiers,
.case-gallery,
.gal-grid {
  grid-template-columns: 1fr !important;
}

@media (min-width: 640px) and (max-width: 900px) {
  .featured-products,
  .pricing-tiers,
  .scenes,
  .related,
  .combo,
  .team-grid,
  .gal-grid,
  .case-gallery {
    grid-template-columns: repeat(2, 1fr) !important;
  }
}

@media (max-width: 640px) {
  h1, .page-title { font-size: 26px !important; }
  .lead, .page-lead { font-size: 15px !important; }
  .block, .case-block { padding: 20px 16px !important; }
  .hero-grid, .tabs, .scenes, .related, .combo, .biz, .case-row,
  .team-grid, .scope-grid, .featured-products, .pricing-tiers,
  .case-gallery, .gal-grid { grid-template-columns: 1fr !important; }
  .btn { width: 100%; margin-right: 0; }
  .bottom-cta .btn, .cta .btn, .case-cta .btn { width: auto; min-width: 200px; }
  .navbar-inner { height: 56px; }
  :root, .page { --nav-h: 56px; }
  .page { padding-top: calc(56px + 16px) !important; padding-left: 16px; padding-right: 16px; }
  .pricing-strip { padding: 22px 14px !important; }
  .price-amount { font-size: 18px !important; }
  .case-featured { grid-template-columns: 1fr !important; }
  .case-featured-visual { min-height: 180px; }
  .hero-art img, .hero-art { min-height: 200px !important; }
  .footer { padding: 32px 16px 24px !important; }
}

/* lang-visibility: never show both languages at once */
.zh { display: inline !important; }
.en { display: none !important; }
body.lang-en .zh { display: none !important; }
body.lang-en .en { display: inline !important; }

/* bottom-visibility: 深色底 + 高对比，保证底部文字可读 */
.bottom-cta,
.case-cta,
.cta {
  background: #1B2430 !important;
  color: #FFFFFF !important;
}
.bottom-cta h2,
.case-cta h2,
.cta h2 { color: #FFFFFF !important; }
.bottom-cta p,
.case-cta p,
.cta p {
  color: rgba(255,255,255,0.92) !important;
  opacity: 1 !important;
  font-size: 16px !important;
}
.bottom-cta .btn,
.cta .btn,
.case-cta .btn,
.bottom-cta .btn-cta-white,
.cta .btn-cta-white {
  background: #FFFFFF !important;
  color: #A63440 !important;
  font-size: 15px !important;
  font-weight: 700 !important;
}
.bottom-cta .btn:hover,
.cta .btn:hover,
.case-cta .btn:hover { background: #F3D8DB !important; color: #7E2833 !important; }
.page-footer {
  color: #5F6E86 !important;
  font-size: 14px !important;
  background: var(--light);
}
.page-footer a { color: #5F6E86; }
.phone a, .bottom-cta .phone a { color: #FFFFFF !important; }

/* contrast-fix: 页脚/表单按钮（防止白底白字） */
.footer {
  background: #1B2430 !important;
  color: rgba(255,255,255,0.88) !important;
}
.footer h4,
.footer .brand-name { color: #FFFFFF !important; }
.footer a { color: rgba(255,255,255,0.88) !important; }
.footer a:hover { color: #FFFFFF !important; }
.footer-bottom { color: rgba(255,255,255,0.55) !important; }

.form-submit {
  background: #A63440 !important;
  color: #FFFFFF !important;
  border: none !important;
}
.form-submit span,
.form-submit .zh,
.form-submit .en { color: #FFFFFF !important; }
.form-submit:hover { background: #7E2833 !important; color: #FFFFFF !important; }

/* 深色区里的输入框可读 */
.cta-banner .form-input,
.cta-banner .form-textarea {
  background: rgba(255,255,255,0.12) !important;
  color: #FFFFFF !important;
  border-color: rgba(255,255,255,0.35) !important;
}
.cta-banner .form-input::placeholder,
.cta-banner .form-textarea::placeholder { color: rgba(255,255,255,0.55) !important; }

/* button hierarchy */
.btn-accent, .nav-cta, .form-submit {
  background: var(--primary) !important;
  color: #fff !important;
  border-radius: var(--r-btn) !important;
  border: none !important;
}
.btn-outline {
  background: transparent !important;
  color: var(--primary) !important;
  border: 1.5px solid var(--primary) !important;
  border-radius: var(--r-btn) !important;
}
.btn-ghost {
  background: transparent !important;
  color: var(--primary) !important;
  border: none !important;
  text-decoration: underline;
  padding-left: 8px !important;
  padding-right: 8px !important;
}

/* unified cards */
.product-card, .solution-card, .p-card, .rel-card, .case-card, .testimonial-card, .block {
  border-radius: var(--r-card) !important;
}
.product-card, .solution-card, .p-card, .rel-card {
  border: 1px solid var(--border) !important;
  background: var(--card) !important;
}
.product-card:hover, .solution-card:hover, .p-card:hover, .rel-card:hover {
  box-shadow: var(--shadow) !important;
}

/* milestone strip */
.milestone-strip {
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap:12px;
  margin: 28px 0 8px;
}
.ms-item {
  background: var(--light);
  border:1px solid var(--border);
  border-radius: var(--r-card);
  padding: 14px 16px;
  font-size: var(--font-small);
  color: var(--gray);
}
.ms-item b {
  display:block;
  color: var(--primary);
  font-size: var(--font-h3);
  margin-bottom:4px;
}
@media (max-width: 800px) {
  .milestone-strip { grid-template-columns: repeat(2,1fr); }
}

/* mobile sticky CTA */
.sticky-cta {
  display: none;
  position: fixed;
  left: 12px; right: 12px; bottom: 12px;
  z-index: 999;
  background: var(--primary);
  color: #fff !important;
  text-align: center;
  padding: 14px 16px;
  border-radius: var(--r-btn);
  font-weight: 700;
  font-size: var(--font-body);
  box-shadow: 0 10px 30px rgba(27,36,48,.18);
}
.sticky-cta:hover { background: var(--primary-dark); text-decoration:none; }
@media (max-width: 900px) {
  .sticky-cta { display: block; }
  body { padding-bottom: 72px; }
}