/* ===== 知亘科技 GEO官网 - 完整样式表 ===== */
/* 基于V18 React版本严格还原 */

/* @import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap'); */

/* === Reset & Base === */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:'Inter',-apple-system,"PingFang SC","Noto Sans SC",sans-serif;
  color:#1A1A1E;background:#fff;line-height:1.6;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale
}
a{text-decoration:none;color:inherit}
button{cursor:pointer;font-family:inherit;background:none}
img{max-width:100%;display:block}
input,select,textarea{font-family:inherit;font-size:100%;color:inherit}
ul,ol{list-style:none}

/* === Font === */
.font-mono-data{font-family:"SF Mono","Fira Code","JetBrains Mono",monospace}

/* === Keyframes === */
@keyframes bounce-slow{
  0%,100%{transform:translateY(0)}
  50%{transform:translateY(8px)}
}
@keyframes fadeInUp{
  from{opacity:0;transform:translateY(20px)}
  to{opacity:1;transform:translateY(0)}
}
@keyframes spin{
  to{transform:rotate(360deg)}
}

.animate-bounce-slow{animation:bounce-slow 2s ease-in-out infinite}
.animate-fade-in{animation:fadeInUp .6s ease-out forwards}
.animate-spin{animation:spin 1s linear infinite}

/* === Layout === */
.container{
  width:100%;max-width:1200px;margin:0 auto;
  padding-left:24px;padding-right:24px
}
@media(min-width:1024px){
  .container{padding-left:48px;padding-right:48px}
}

/* === Navbar === */
.navbar{
  position:fixed;top:0;left:0;right:0;z-index:50;
  height:64px;display:flex;align-items:center;
  transition:all .3s ease
}
.navbar-transparent{background:transparent}
.navbar-solid{
  background:rgba(247,248,250,.85);
  border-bottom:1px solid #E5E7EB;
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px)
}
.navbar-inner{
  width:100%;max-width:1200px;margin:0 auto;
  padding-left:24px;padding-right:24px;
  display:flex;align-items:center;justify-content:space-between
}
@media(min-width:1024px){
  .navbar-inner{padding-left:48px;padding-right:48px}
}
.logo{
  display:flex;align-items:center;gap:8px
}
.logo svg{width:32px;height:32px}
.logo-text{
  font-size:18px;font-weight:600;transition:color .3s
}
.logo-text-white{color:#fff}
.logo-text-dark{color:#1A1A1E}

.nav-links{
  display:none;align-items:center;gap:32px
}
@media(min-width:768px){
  .nav-links{display:flex}
}
.nav-link{
  position:relative;font-size:15px;font-weight:500;
  transition:color .2s;padding-bottom:2px
}
.nav-link-white{color:#8A8B90}
.nav-link-white:hover{color:#fff}
.nav-link-dark{color:#6B7280}
.nav-link-dark:hover{color:#1A1A1E}
.nav-link::after{
  content:'';position:absolute;bottom:-2px;left:0;
  width:0;height:2px;background:#E85D24;
  transition:width .2s ease
}
.nav-link:hover::after{width:100%}

.nav-cta{
  display:none
}
@media(min-width:768px){
  .nav-cta{display:block}
}
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;
  background:#E85D24;color:#fff;font-size:15px;font-weight:600;
  padding:10px 20px;border-radius:8px;
  transition:all .2s ease;border:none
}
.btn-primary:hover{background:#D14F1A;transform:scale(1.02)}
.btn-primary-rounded{
  border-radius:9999px;padding:12px 28px
}
.btn-outline-white{
  display:inline-flex;align-items:center;justify-content:center;
  background:transparent;color:#fff;font-size:15px;font-weight:500;
  padding:12px 28px;border-radius:9999px;
  border:1px solid rgba(255,255,255,.3);
  transition:all .2s ease
}
.btn-outline-white:hover{background:rgba(255,255,255,.1)}

/* Mobile menu */
.mobile-menu-btn{
  display:block;padding:8px;background:none;border:none
}
@media(min-width:768px){
  .mobile-menu-btn{display:none}
}
.mobile-menu-btn svg{width:24px;height:24px}
.mobile-menu-btn-white{color:#fff}
.mobile-menu-btn-dark{color:#1A1A1E}

.mobile-overlay{
  position:fixed;inset:0;z-index:60;background:#F7F8FA;
  display:none;flex-direction:column;padding:24px
}
.mobile-overlay.active{display:flex}
.mobile-overlay-header{
  display:flex;justify-content:space-between;align-items:center;margin-bottom:48px
}
.mobile-overlay-links{
  display:flex;flex-direction:column;gap:24px;flex:1
}
.mobile-overlay-links a{
  font-size:24px;font-weight:600;color:#1A1A1E
}

/* === Hero Section === */
.hero{
  position:relative;width:100%;height:100vh;
  background:#0A0A0C;overflow:hidden;
  display:flex;align-items:center;justify-content:center
}
.hero-canvas{
  position:absolute;inset:0;z-index:0
}
.hero-canvas canvas{
  width:100%;height:100%;display:block
}
.hero-content{
  position:relative;z-index:10;text-align:center;
  padding:0 24px;max-width:800px
}
.hero-title{
  font-size:30px;font-weight:700;color:#fff;
  line-height:1.1;letter-spacing:-0.025em;
  text-shadow:0 2px 20px rgba(0,0,0,.5)
}
@media(min-width:640px){
  .hero-title{font-size:36px}
}
@media(min-width:768px){
  .hero-title{font-size:52px}
}
.hero-subtitle{
  margin-top:24px;font-size:14px;color:#8A8B90;
  max-width:560px;margin-left:auto;margin-right:auto;
  line-height:1.625
}
@media(min-width:640px){
  .hero-subtitle{font-size:16px}
}
.hero-buttons{
  margin-top:40px;display:flex;flex-direction:column;
  align-items:center;gap:16px
}
@media(min-width:640px){
  .hero-buttons{flex-direction:row;justify-content:center}
}
.hero-scroll{
  position:absolute;bottom:40px;left:50%;
  transform:translateX(-50%)
}
.hero-scroll svg{
  width:24px;height:24px;color:#8A8B90
}

/* === Section Spacing === */
.section-dark{background:#0A0A0C}
.section-light{background:#F7F8FA}
.section-white{background:#fff}
.py-10{padding-top:40px;padding-bottom:40px}
.py-14{padding-top:56px;padding-bottom:56px}
.py-16{padding-top:64px;padding-bottom:64px}
.py-20{padding-top:80px;padding-bottom:80px}
@media(min-width:640px){
  .sm\:py-24{padding-top:96px;padding-bottom:96px}
  .sm\:py-32{padding-top:128px;padding-bottom:128px}
}

/* === Platform Logos === */
.platform-bar{
  background:#0A0A0C;padding:40px 0;
  border-top:1px solid #2A2A2E
}
.platform-label{
  text-align:center;margin-bottom:24px;
  font-size:13px;color:#8A8B90;letter-spacing:0.025em
}
.platform-list{
  display:flex;flex-wrap:wrap;
  align-items:center;justify-content:center;gap:16px
}
@media(min-width:640px){
  .platform-list{gap:24px}
}
.platform-item{
  display:flex;align-items:center;gap:8px;
  padding:10px 16px;border-radius:8px;
  background:#141418;border:1px solid #2A2A2E;
  transition:border-color .2s
}
.platform-item:hover{border-color:rgba(232,93,36,.3)}
.platform-icon{
  width:28px;height:28px;border-radius:6px;
  background:rgba(232,93,36,.1);
  display:flex;align-items:center;justify-content:center
}
.platform-icon span{
  font-size:10px;font-weight:700;color:#E85D24
}
.platform-name{font-size:14px;color:#E5E5E7;font-weight:500}

/* === Services Section === */
.section-label{
  font-size:13px;font-weight:500;color:#E85D24;
  letter-spacing:0.05em;text-transform:uppercase
}
.section-title{
  margin-top:12px;font-size:24px;font-weight:700;
  color:#1A1A1E;line-height:1.25
}
@media(min-width:640px){
  .section-title{font-size:40px}
}
.section-title-md{
  margin-top:12px;font-size:24px;font-weight:600;
  color:#1A1A1E;line-height:1.25
}
@media(min-width:640px){
  .section-title-md{font-size:32px}
}
.section-desc{
  margin-top:16px;font-size:15px;color:#6B7280;
  line-height:1.625;
  /* max-width:640px */
}

.services-grid{
  margin-top:48px;display:grid;
  grid-template-columns:1fr;gap:24px
}
@media(min-width:640px){
  .services-grid{grid-template-columns:repeat(2,1fr)}
}
@media(min-width:1024px){
  .services-grid{grid-template-columns:repeat(4,1fr);margin-top:64px}
}
.service-card{
  display:block;background:#fff;border-radius:12px;
  padding:32px;border:1px solid #E5E7EB;
  transition:all .3s ease
}
.service-card:hover{
  border-color:#E85D24;
  box-shadow:0 4px 24px rgba(0,0,0,.06);
  transform:translateY(-2px)
}
.service-icon{
  width:48px;height:48px;border-radius:8px;
  background:#FFF4EF;display:flex;
  align-items:center;justify-content:center
}
.service-icon svg{width:24px;height:24px;color:#E85D24}
.service-card h3{
  margin-top:20px;font-size:18px;font-weight:600;color:#1A1A1E
}
.service-card p{
  margin-top:8px;font-size:14px;color:#6B7280;line-height:1.625
}
.service-link{
  margin-top:16px;display:inline-flex;align-items:center;
  gap:4px;font-size:13px;font-weight:500;color:#E85D24;
  transition:gap .2s
}
.service-link:hover{gap:8px}
.service-link svg{width:14px;height:14px}

/* === Data Stats === */
.stats-layout{
  display:flex;flex-direction:column;gap:48px
}
@media(min-width:1024px){
  .stats-layout{flex-direction:row;gap:64px}
}
.stats-left{flex:0 0 auto}
@media(min-width:1024px){
  .stats-left{width:40%}
}
.stats-right{flex:1}
@media(min-width:1024px){
  .stats-right{width:60%}
}
.stats-grid{
  display:grid;grid-template-columns:1fr;gap:24px
}
@media(min-width:640px){
  .stats-grid{grid-template-columns:repeat(2,1fr)}
}
.stat-card{
  background:#F7F8FA;border-radius:12px;padding:24px;
  border-left:3px solid #E85D24
}
.stat-value-row{
  display:flex;align-items:center;gap:8px
}
.stat-value{
  font-size:28px;font-weight:700;color:#1A1A1E;
  font-family:"SF Mono","Fira Code","JetBrains Mono",monospace;
  letter-spacing:-0.025em
}
@media(min-width:640px){
  .stat-value{font-size:36px}
}
.stat-trend{
  display:inline-flex;align-items:center;gap:2px;
  background:rgba(34,197,94,.1);color:#22C55E;
  font-size:11px;font-weight:500;
  padding:2px 8px;border-radius:9999px
}
.stat-trend svg{width:12px;height:12px}
.stat-label{
  margin-top:4px;font-size:13px;font-weight:500;color:#6B7280
}
.stat-detail{
  margin-top:4px;font-size:12px;color:#8A8B90
}

/* === Client Logos === */
.client-list{
  display:flex;flex-wrap:wrap;
  align-items:center;justify-content:center;
  gap:24px
}
@media(min-width:640px){
  .client-list{gap:40px}
}
.client-item{
  display:flex;align-items:center;gap:12px;
  padding:12px 24px;border-radius:8px;
  border:1px solid #E5E7EB;
  transition:all .2s;cursor:default
}
.client-item:hover{border-color:rgba(232,93,36,.3)}
.client-avatar{
  width:36px;height:36px;border-radius:6px;
  background:#F7F8FA;display:flex;
  align-items:center;justify-content:center;
  transition:background .2s
}
.client-item:hover .client-avatar{background:#FFF4EF}
.client-avatar span{
  font-size:12px;font-weight:700;color:#6B7280;
  transition:color .2s
}
.client-item:hover .client-avatar span{color:#E85D24}
.client-name{font-size:14px;font-weight:500;color:#1A1A1E}
.client-item:hover .client-name{color:#E85D24}
.client-industry{font-size:11px;color:#8A8B90}
.client-placeholder{
  display:flex;align-items:center;gap:8px;
  padding:12px 24px;border-radius:8px;
  border:1px dashed #E5E7EB
}
.client-placeholder span{font-size:13px;color:#8A8B90}

/* === Cases Section === */
.cases-list{display:flex;flex-direction:column;gap:48px}
.case-card{
  background:#fff;border-radius:16px;overflow:hidden;
  border:1px solid #E5E7EB;display:flex;flex-direction:column
}
@media(min-width:1024px){
  .case-card{flex-direction:row}
}
.case-img{
  width:100%;height:224px;background:#F7F8FA;
  display:flex;align-items:center;justify-content:center;
  overflow:hidden
}
@media(min-width:640px){
  .case-img{height:256px}
}
@media(min-width:1024px){
  .case-img{width:45%;height:auto}
}
.case-img img{width:100%;height:100%;object-fit:cover}
.case-img .img-placeholder{
  width:100%;height:100%;
  background:linear-gradient(135deg,#FFF4EF 0%,#F7F8FA 50%,#FFF4EF 100%);
  display:flex;align-items:center;justify-content:center;
  font-size:48px;font-weight:700;color:#E85D24;
  opacity:.8
}
.case-body{
  padding:24px;display:flex;flex-direction:column;justify-content:center
}
@media(min-width:640px){
  .case-body{padding:40px}
}
@media(min-width:1024px){
  .case-body{width:55%;padding:48px}
}
/* Case tags row (industry + tag taxonomy pills) */
.case-tags{
  display:flex;flex-wrap:wrap;align-items:center;
  gap:8px;margin-bottom:16px
}
.case-tag-pill{
  background:#F0F0F1;color:#6B7280;
  font-size:12px;font-weight:500;
  padding:4px 10px;border-radius:9999px
}
/* Visual parity: case 1 uses 提及优化 (background #E5E7EB), cases 2-4 use 排名优化 — but both use same pill style. */

/* Homepage alternation via CSS (replaces PHP flip arg) */
@media(min-width:1024px){
  .cases-list .case-card:nth-child(even){
    flex-direction:row-reverse
  }
}
.case-body h3{
  margin-top:16px;font-size:20px;font-weight:600;
  color:#1A1A1E;line-height:1.375
}
@media(min-width:640px){
  .case-body h3{font-size:24px}
}
.case-body > p{
  margin-top:12px;font-size:15px;color:#6B7280;line-height:1.625
}
.case-metrics{
  margin-top:24px;display:flex;flex-wrap:wrap;gap:24px
}
.case-metrics > div{display:flex;flex-direction:column}
.case-metrics .val{
  font-size:20px;font-weight:700;color:#1A1A1E;
  font-family:"SF Mono","Fira Code","JetBrains Mono",monospace
}
.case-metrics .lab{
  font-size:13px;color:#6B7280;margin-top:2px
}
.case-link{
  margin-top:24px;display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:500;color:#E85D24;align-self:flex-start;
  transition:gap .2s, color .2s
}
.case-link:hover{
  gap:12px;color:#C94818
}
.case-link svg{width:16px;height:16px}

/* === Trust Section === */
.trust-grid{
  margin-top:48px;display:grid;grid-template-columns:1fr;gap:20px
}
@media(min-width:640px){
  .trust-grid{grid-template-columns:repeat(2,1fr)}
}
@media(min-width:1024px){
  .trust-grid{grid-template-columns:repeat(3,1fr)}
}
.trust-card{
  background:#fff;border-radius:12px;padding:24px;
  border:1px solid #E5E7EB;transition:border-color .2s;
  height:100%
}
.trust-card:hover{border-color:rgba(232,93,36,.3)}
.trust-icon{
  width:40px;height:40px;border-radius:8px;
  background:#FFF4EF;display:flex;
  align-items:center;justify-content:center
}
.trust-icon svg{width:20px;height:20px;color:#E85D24}
.trust-card h3{
  margin-top:16px;font-size:16px;font-weight:600;color:#1A1A1E
}
.trust-card p{
  margin-top:8px;font-size:13px;color:#6B7280;line-height:1.625
}

/* === FAQ === */
.faq-container{
  max-width:800px;margin:0 auto
}
.faq-list{
  border:1px solid #E5E7EB;border-radius:12px;overflow:hidden
}
.faq-item{border-bottom:1px solid #E5E7EB}
.faq-item:last-child{border-bottom:none}
.faq-question{
  width:100%;display:flex;align-items:center;
  justify-content:space-between;padding:16px 24px;
  text-align:left;font-size:15px;font-weight:500;
  color:#1A1A1E;background:#fff;
  transition:background .2s;border:none
}
.faq-question:hover{background:#F7F8FA}
.faq-question svg{
  width:20px;height:20px;color:#8A8B90;
  flex-shrink:0;transition:transform .2s
}
.faq-question.active svg{transform:rotate(180deg)}
.faq-answer{
  max-height:0;overflow:hidden;
  transition:max-height .3s ease,padding .3s ease
}
.faq-answer.open{
  max-height:500px;padding:0 24px 16px
}
.faq-answer p{
  font-size:14px;color:#6B7280;line-height:1.625
}

/* === CTA Section === */
.cta-layout{
  display:flex;flex-direction:column;gap:48px
}
@media(min-width:1024px){
  .cta-layout{flex-direction:row;gap:64px}
}
.cta-left{flex:0 0 auto}
@media(min-width:1024px){
  .cta-left{width:45%}
}
.cta-right{flex:1}
@media(min-width:1024px){
  .cta-right{width:55%}
}
.cta-left h2{
  font-size:24px;font-weight:600;color:#fff;line-height:1.25
}
@media(min-width:640px){
  .cta-left h2{font-size:32px}
}
.cta-left > p{
  margin-top:16px;font-size:16px;color:#8A8B90;line-height:1.625
}
.cta-checks{
  margin-top:24px;display:flex;flex-wrap:wrap;gap:20px
}
.cta-checks > div{
  display:flex;align-items:center;gap:8px
}
.cta-checks svg{
  width:16px;height:16px;color:#22C55E;flex-shrink:0
}
.cta-checks span{
  font-size:13px;color:#8A8B90
}
.cta-form .form-row{
  display:grid;grid-template-columns:1fr;gap:16px
}
@media(min-width:640px){
  .cta-form .form-row{grid-template-columns:repeat(2,1fr)}
}
.cta-form .form-input{
  width:100%;background:#141418;border:1px solid #2A2A2E;
  border-radius:8px;padding:12px 16px;color:#E5E5E7;
  font-size:14px;transition:border-color .2s
}
.cta-form .form-input::placeholder{color:#8A8B90}
.cta-form .form-input:focus{
  outline:none;border-color:#E85D24
}
.cta-form .form-input option{
  background:#141418;color:#E5E5E7
}
select.form-input{-webkit-appearance:none;appearance:none}

/* === Footer === */
.footer{
  background:#0A0A0C;border-top:1px solid #2A2A2E
}
.footer-inner{
  max-width:1200px;margin:0 auto;
  padding:64px 24px 32px
}
@media(min-width:1024px){
  .footer-inner{padding:64px 48px 32px}
}
.footer-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:32px
}
@media(min-width:768px){
  .footer-grid{grid-template-columns:repeat(4,1fr);gap:32px}
}
@media(min-width:1024px){
  .footer-grid{gap:48px}
}
.footer-brand{
  grid-column:span 2
}
@media(min-width:768px){
  .footer-brand{grid-column:span 1}
}
.footer-brand .logo-text{color:#fff}
.footer-brand p{
  margin-top:12px;font-size:14px;color:#8A8B90;line-height:1.625
}
.footer h4{
  font-size:14px;font-weight:600;color:#E5E5E7;margin-bottom:16px
}
.footer-links li{margin-bottom:12px}
.footer-links a,.footer-links span{
  font-size:14px;color:#8A8B90;
  transition:color .2s;cursor:pointer
}
.footer-links a:hover,.footer-links span:hover{color:#fff}
.footer-qr{
  margin-top:16px;width:80px;height:80px;
  background:#1A1A1E;border-radius:8px;
  border:1px solid #2A2A2E;
  display:flex;align-items:center;justify-content:center
}
.footer-qr span{font-size:12px;color:#8A8B90}
.footer-bottom{
  margin-top:64px;padding-top:24px;
  border-top:1px solid #2A2A2E;
  display:flex;flex-direction:column;
  align-items:center;gap:16px
}
@media(min-width:640px){
  .footer-bottom{flex-direction:row;justify-content:space-between}
}
.footer-bottom p,.footer-bottom a,.footer-bottom span{
  font-size:13px;color:#8A8B90
}
.footer-bottom a:hover,.footer-bottom span:hover{color:#fff;cursor:pointer}
.footer-bottom-links{display:flex;gap:24px}

/* === Floating Contact === */
.fc-container{
  display:none;position:fixed;right:20px;bottom:20px;z-index:40
}
@media(min-width:1024px){
  .fc-container{display:block}
}
.fc-menu{
  margin-bottom:12px;background:#fff;border-radius:12px;
  box-shadow:0 4px 24px rgba(0,0,0,.12);
  border:1px solid #E5E7EB;overflow:hidden;width:200px;
  display:none
}
.fc-menu.open{display:block}
.fc-menu a,.fc-menu button{
  display:flex;align-items:center;gap:12px;
  padding:12px 16px;font-size:13px;font-weight:500;
  color:#1A1A1E;transition:background .2s;
  width:100%;text-align:left;border:none;
  border-bottom:1px solid #E5E7EB;background:#fff
}
.fc-menu a:last-child,.fc-menu button:last-child{border-bottom:none}
.fc-menu a:hover,.fc-menu button:hover{background:#F7F8FA}
.fc-icon{
  width:32px;height:32px;border-radius:9999px;
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0
}
.fc-icon-orange{background:#FFF4EF}
.fc-icon-green{background:#F0FDF4}
.fc-icon-blue{background:#EFF6FF}
.fc-icon svg{width:16px;height:16px}
.fc-toggle{
  width:48px;height:48px;border-radius:9999px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 12px rgba(0,0,0,.15);
  border:none;transition:all .3s
}
.fc-toggle-closed{background:#E85D24}
.fc-toggle-closed:hover{background:#D14F1A}
.fc-toggle-open{background:#1A1A1E}
.fc-toggle-open:hover{background:#2A2A2E}
.fc-toggle svg{width:20px;height:20px;color:#fff}

/* QR Modal */
.qr-modal{
  position:fixed;inset:0;z-index:50;
  display:none;align-items:center;justify-content:center;
  background:rgba(0,0,0,.5);padding:24px
}
.qr-modal.active{display:flex}
.qr-modal-box{
  background:#fff;border-radius:16px;padding:24px;
  max-width:320px;width:100%;text-align:center
}
.qr-modal-box h3{font-size:18px;font-weight:600;color:#1A1A1E}
.qr-modal-box > p{margin-top:4px;font-size:13px;color:#8A8B90}
.qr-area{
  margin:16px auto 0;width:200px;height:200px;
  background:#F7F8FA;border-radius:12px;
  border:1px solid #E5E7EB;
  display:flex;align-items:center;justify-content:center;
  overflow:hidden
}
.qr-close{
  margin-top:16px;width:100%;padding:10px 0;
  background:#F7F8FA;border:none;border-radius:8px;
  font-size:14px;font-weight:500;color:#1A1A1E;
  transition:background .2s
}
.qr-close:hover{background:#EFEFEF}

/* === Utility === */
.text-center{text-align:center}
.mx-auto{margin-left:auto;margin-right:auto}
.mb-4{margin-bottom:16px}
.mb-6{margin-bottom:24px}
.mb-8{margin-bottom:32px}
.mb-12{margin-bottom:48px}
.mt-3{margin-top:12px}
.mt-4{margin-top:16px}
.mt-6{margin-top:24px}
.mt-8{margin-top:32px}
.mt-10{margin-top:40px}
.mt-12{margin-top:48px}
.flex{display:flex}
.items-center{align-items:center}
.justify-center{justify-content:center}
.gap-2{gap:8px}
.gap-4{gap:16px}
.gap-6{gap:24px}
.hidden{display:none}
.pt-16{padding-top:64px}
.border-t{border-top:1px solid #E5E7EB}
.max-w-640{max-width:640px}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:500;color:#E85D24;
  transition:gap .2s
}
.link-arrow:hover{gap:12px}
.link-arrow svg{width:16px;height:16px}

/* Info box */
.info-box{
  background:#F7F8FA;border-radius:12px;padding:24px;
  border-left:3px solid #E85D24
}
.info-box p{font-size:14px;color:#6B7280;line-height:1.625}
.info-box strong{color:#1A1A1E}

/* Article content */
.article-content h2{
  font-size:22px;font-weight:700;color:#1A1A1A;
  margin-top:32px;margin-bottom:16px;line-height:1.35
}
.article-content h3{
  font-size:18px;font-weight:600;color:#1A1A1A;
  margin-top:24px;margin-bottom:12px
}
.article-content p{
  color:#374151;margin-bottom:16px;
  line-height:1.75;font-size:15px
}
.article-content ul,.article-content ol{
  padding-left:24px;margin-bottom:16px
}
.article-content ul{list-style:disc}
.article-content ol{list-style:decimal}
.article-content li{
  color:#374151;margin-bottom:8px;
  line-height:1.7;font-size:15px
}
.article-content a{color:#E85D24}
.article-content a:hover{text-decoration:underline}
.article-content table{
  width:100%;border-collapse:collapse;margin:20px 0;font-size:14px
}
.article-content th{
  padding:10px 16px;border-bottom:2px solid #E5E7EB;
  font-weight:600;text-align:left;background:#F7F8FA
}
.article-content td{
  padding:10px 16px;border-bottom:1px solid #F0F0F0;color:#374151
}

/* Case image/body ordering */
@media(min-width:1024px){
  .case-img-order-2{order:2}
  .case-body-order-1{order:1}
}

/* Tags */
.tag{
  display:inline-block;background:#F7F8FA;
  color:#6B7280;font-size:12px;
  padding:4px 10px;border-radius:6px
}

/* Related article */
.related-card{
  display:block;background:#F7F8FA;border-radius:8px;
  padding:16px;border:1px solid transparent;
  transition:border-color .2s
}
.related-card:hover{border-color:rgba(232,93,36,.3)}
.related-card p:first-child{
  font-size:14px;font-weight:500;color:#1A1A1E
}
.related-card p:last-child{
  font-size:12px;color:#6B7280;margin-top:4px
}

/* Contact form */
.contact-layout{
  display:flex;flex-direction:column;gap:48px
}
@media(min-width:1024px){
  .contact-layout{flex-direction:row;gap:64px}
}
.contact-info{
  background:#0A0A0C;border-radius:16px;
  padding:24px 32px;color:#fff
}
@media(min-width:640px){
  .contact-info{padding:32px}
}
@media(min-width:1024px){
  .contact-info{width:40%}
}
.contact-info h2{
  font-size:20px;font-weight:600
}
.contact-info-list{
  margin-top:24px;display:flex;flex-direction:column;gap:20px
}
.contact-info-item{
  display:flex;align-items:flex-start;gap:12px
}
.contact-info-item svg{
  width:20px;height:20px;color:#E85D24;flex-shrink:0;margin-top:2px
}
.contact-info-item p:first-child{
  font-size:14px;font-weight:500
}
.contact-info-item p:last-child{
  font-size:13px;color:#8A8B90;margin-top:4px
}
.contact-info-wechat{
  margin-top:32px;padding-top:24px;
  border-top:1px solid #2A2A2E
}
.contact-info-wechat p{font-size:13px;font-weight:500;color:#E5E5E7}
.contact-qr{
  margin-top:12px;width:96px;height:96px;
  background:#1A1A1E;border-radius:8px;
  border:1px solid #2A2A2E;
  display:flex;align-items:center;justify-content:center
}
.contact-qr span{font-size:11px;color:#8A8B90}
@media(min-width:1024px){
  .contact-form-wrap{width:60%}
}
.form-group{margin-bottom:20px}
.form-group label{
  display:block;font-size:14px;font-weight:500;
  color:#1A1A1E;margin-bottom:6px
}
.form-group label .required{color:#E85D24}
.form-input-light{
  width:100%;background:#fff;border:1px solid #E5E7EB;
  border-radius:8px;padding:12px 16px;color:#1A1A1E;
  font-size:14px;transition:border-color .2s
}
.form-input-light::placeholder{color:#8A8B90}
.form-input-light:focus{outline:none;border-color:#E85D24}
select.form-input-light{-webkit-appearance:none;appearance:none}

.problem-tags{
  display:flex;flex-wrap:wrap;gap:8px
}
.problem-tag{
  font-size:13px;padding:6px 12px;border-radius:8px;
  border:1px solid #E5E7EB;background:#fff;
  color:#6B7280;transition:all .2s;cursor:pointer
}
.problem-tag:hover{border-color:#8A8B90}
.problem-tag.active,
.problem-tag:has(input:checked){
  border-color:#E85D24;background:#FFF4EF;color:#E85D24
}

/* === Resources page === */
.eeat-bar{
  background:#F7F8FA;border-radius:12px;padding:16px;
  display:flex;flex-wrap:wrap;align-items:center;gap:16px;
  margin-bottom:32px;font-size:13px;color:#6B7280
}
.eeat-bar > span{
  display:flex;align-items:center;gap:6px
}
.eeat-bar svg{
  width:16px;height:16px;color:#22C55E
}

/* Breadcrumb */
.breadcrumb{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:#8A8B90;margin-bottom:16px
}
.breadcrumb a:hover{color:#E85D24}
.breadcrumb .sep{color:#D1D5DB}
.breadcrumb .current{color:#1A1A1E;font-weight:500}

/* === Responsive page header === */
.page-header{
  background:#F7F8FA;padding-top:48px;padding-bottom:48px
}
@media(min-width:768px){
  .page-header{padding-top:96px;padding-bottom:48px}
}



.article-detail-info {display:inline-block;background:#FFF4EF;color:#E85D24;font-size:11px;font-weight:500;padding:2px 10px;border-radius:9999px;margin-bottom:16px}


/* Scrollbar */
::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:#d1d5db;border-radius:3px}