/* ===== Reset & Variables ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --primary:#2563eb;
  --primary-dark:#1e40af;
  --primary-light:#3b82f6;
  --primary-bg:#eff6ff;
  --primary-bg-strong:#dbeafe;
  --accent:#0ea5e9;
  --white:#ffffff;
  --bg-light:#f8fafc;
  --bg-gray:#f1f5f9;
  --text-primary:#1e293b;
  --text-secondary:#64748b;
  --text-light:#94a3b8;
  --border:#e2e8f0;
  --border-light:#f1f5f9;
  --shadow-sm:0 1px 3px rgba(0,0,0,0.06),0 1px 2px rgba(0,0,0,0.04);
  --shadow-md:0 4px 12px rgba(0,0,0,0.06),0 2px 4px rgba(0,0,0,0.04);
  --shadow-lg:0 12px 32px rgba(0,0,0,0.08),0 4px 8px rgba(0,0,0,0.04);
  --shadow-xl:0 20px 48px rgba(0,0,0,0.1),0 8px 16px rgba(0,0,0,0.04);
  --radius-sm:6px;
  --radius-md:12px;
  --radius-lg:20px;
  --radius-xl:28px;
  --max-width:1200px;
  --nav-height:68px;
  --transition:0.3s cubic-bezier(0.4,0,0.2,1);
}
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:'Segoe UI',system-ui,-apple-system,sans-serif;
  background:var(--white);
  color:var(--text-primary);
  line-height:1.7;
  text-align:justify;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  padding-top:var(--nav-height)
}

/* ===== Navigation ===== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  height:var(--nav-height);
  background:rgba(255,255,255,0.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  transition:box-shadow var(--transition)
}
.nav.scrolled{box-shadow:var(--shadow-md)}
.nav-inner{
  max-width:var(--max-width);
  margin:0 auto;
  height:100%;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 24px
}
.nav-logo{
  display:flex;align-items:center;gap:10px;
  font-size:1.25rem;font-weight:800;color:var(--primary);
  text-decoration:none
}
.nav-logo-icon{
  width:36px;height:36px;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  border-radius:var(--radius-sm);
  display:flex;align-items:center;justify-content:center;
  color:white;font-size:1.1rem
}
.nav-links{
  display:flex;align-items:center;gap:4px;
  list-style:none
}
.nav-links a{
  display:block;padding:8px 18px;
  font-size:0.9rem;font-weight:500;
  color:var(--text-secondary);
  text-decoration:none;
  border-radius:var(--radius-sm);
  transition:all var(--transition)
}
.nav-links a:hover{color:var(--primary);background:var(--primary-bg)}
.nav-links a.active{color:var(--primary);font-weight:600}
.nav-cta{
  padding:8px 20px !important;
  background:var(--primary) !important;
  color:white !important;
  border-radius:var(--radius-xl) !important;
  font-weight:600 !important
}
.nav-cta:hover{background:var(--primary-dark) !important;box-shadow:var(--shadow-md) !important}
.nav-toggle{
  display:none;
  flex-direction:column;gap:5px;
  background:none;border:none;cursor:pointer;
  padding:8px
}
.nav-toggle span{
  display:block;width:24px;height:2px;
  background:var(--text-primary);
  border-radius:2px;
  transition:all var(--transition)
}
.nav-toggle.open span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}

/* ===== Hero ===== */
.hero{
  position:relative;
  background:linear-gradient(160deg,var(--primary-bg) 0%,var(--primary-bg-strong) 30%,var(--white) 70%);
  padding:80px 24px 64px;
  overflow:hidden
}
.hero::before{
  content:'';position:absolute;
  top:-120px;right:-120px;
  width:400px;height:400px;
  background:radial-gradient(circle,rgba(37,99,235,0.08) 0%,transparent 60%);
  border-radius:50%
}
.hero::after{
  content:'';position:absolute;
  bottom:-80px;left:-80px;
  width:300px;height:300px;
  background:radial-gradient(circle,rgba(14,165,233,0.06) 0%,transparent 60%);
  border-radius:50%
}
.hero-inner{
  max-width:var(--max-width);
  margin:0 auto;
  display:grid;grid-template-columns:1fr 1fr;
  gap:48px;align-items:center;
  position:relative;z-index:1
}
.hero-content{max-width:560px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:0.85rem;font-weight:600;
  color:var(--primary);
  padding:6px 16px;
  background:var(--primary-bg);
  border-radius:20px;
  margin-bottom:24px
}
.hero-badge-dot{
  width:8px;height:8px;
  border-radius:50%;
  background:var(--primary);
  animation:pulse 2s infinite
}
.hero h1{
  font-size:clamp(2rem,4.5vw,3.2rem);
  font-weight:800;
  line-height:1.2;
  letter-spacing:-0.02em;
  margin-bottom:16px;
  color:var(--text-primary)
}
.hero h1 .highlight{
  background:linear-gradient(135deg,var(--primary),var(--accent));
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text
}
.hero p{
  font-size:1.1rem;
  color:var(--text-secondary);
  margin-bottom:32px;
  line-height:1.7
}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:15px 32px;
  border-radius:var(--radius-xl);
  font-size:0.95rem;font-weight:700;
  text-decoration:none;
  cursor:pointer;border:none;
  transition:all var(--transition);
  letter-spacing:0.02em
}
.btn-icon{
  width:30px;height:30px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:0.85rem;flex-shrink:0;
  transition:all var(--transition)
}
.btn-admin{
  background:#2563eb;
  color:white;
  box-shadow:0 4px 20px rgba(37,99,235,0.3)
}
.btn-admin .btn-icon{background:rgba(255,255,255,0.2);color:white}
.btn-admin:hover{background:#1d4ed8;transform:translateY(-3px);box-shadow:0 8px 32px rgba(37,99,235,0.4)}
.btn-candidate{
  background:#0d9488;
  color:white;
  box-shadow:0 4px 20px rgba(13,148,136,0.3)
}
.btn-candidate .btn-icon{background:rgba(255,255,255,0.2);color:white}
.btn-candidate:hover{background:#0f766e;transform:translateY(-3px);box-shadow:0 8px 32px rgba(13,148,136,0.4)}
.hero-visual{
  display:flex;align-items:center;justify-content:center
}

/* ===== Hero Demo Dashboard ===== */
.hero-demo{
  background:white;
  border-radius:var(--radius-lg);
  box-shadow:0 20px 60px rgba(0,0,0,0.12);
  overflow:hidden;
  width:100%;max-width:520px;
  font-family:'Segoe UI',system-ui,sans-serif
}
.demo-topbar{
  background:var(--primary);
  color:white;padding:10px 16px;
  display:flex;align-items:center;justify-content:space-between;
  font-size:0.72rem
}
.demo-topbar-left{display:flex;align-items:center;gap:10px}
.demo-topbar-dot{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,0.5)}
.demo-topbar-dot.active{background:white}
.demo-topbar-title{font-weight:600;font-size:0.75rem}
.demo-topbar-user{display:flex;align-items:center;gap:6px}
.demo-avatar{width:22px;height:22px;border-radius:50%;background:rgba(255,255,255,0.25);display:flex;align-items:center;justify-content:center;font-size:0.6rem}
.demo-layout{display:flex;min-height:280px}
.demo-sidebar{
  width:80px;background:var(--bg-light);
  border-right:1px solid var(--border);
  display:flex;flex-direction:column;gap:2px;padding:10px 6px
}
.demo-side-item{
  display:flex;flex-direction:column;align-items:center;gap:3px;
  padding:8px 4px;border-radius:var(--radius-sm);
  font-size:0.55rem;color:var(--text-secondary);cursor:default;
  transition:all var(--transition)
}
.demo-side-item.active{background:var(--primary);color:white}
.demo-side-icon{font-size:0.8rem}
.demo-main{flex:1;padding:14px 16px;overflow:hidden}
.demo-stats{display:flex;gap:8px;margin-bottom:14px}
.demo-stat{
  flex:1;padding:10px 8px;border-radius:var(--radius-sm);
  text-align:center;border:1px solid var(--border)
}
.demo-stat:nth-child(1){background:var(--primary-bg);border-color:var(--primary-bg-strong)}
.demo-stat:nth-child(2){background:#f0fdfa;border-color:#ccfbf1}
.demo-stat:nth-child(3){background:#fffbeb;border-color:#fef3c7}
.demo-stat-num{font-size:1rem;font-weight:800}
.demo-stat:nth-child(1) .demo-stat-num{color:var(--primary)}
.demo-stat:nth-child(2) .demo-stat-num{color:#0d9488}
.demo-stat:nth-child(3) .demo-stat-num{color:#d97706}
.demo-stat-label{font-size:0.55rem;color:var(--text-light);margin-top:2px}
.demo-table-header{
  display:flex;align-items:center;gap:6px;
  font-size:0.65rem;font-weight:600;margin-bottom:8px;
  padding-bottom:8px;border-bottom:1px solid var(--border-light)
}
.demo-table-header span{color:var(--text-light)}
.demo-table-row{
  display:flex;align-items:center;gap:6px;
  padding:6px 0;font-size:0.62rem;
  border-bottom:1px solid var(--border-light)
}
.demo-table-row:last-child{border:none}
.demo-tag{
  padding:2px 8px;border-radius:10px;
  font-size:0.55rem;font-weight:600;
  white-space:nowrap
}
.demo-tag.blue{background:var(--primary-bg);color:var(--primary)}
.demo-tag.green{background:#f0fdfa;color:#0d9488}
.demo-tag.orange{background:#fffbeb;color:#d97706}
.demo-progress{
  flex:1;height:4px;background:var(--border);
  border-radius:2px;overflow:hidden;min-width:30px
}
.demo-progress-bar{height:100%;border-radius:2px}
.demo-progress-bar.blue{background:var(--primary)}
.demo-progress-bar.green{background:#0d9488}
.demo-progress-bar.orange{background:#d97706}
.demo-percent{font-size:0.58rem;color:var(--text-light);min-width:28px;text-align:right}

/* ===== Page Banner (sub-pages) ===== */
.page-banner{background:linear-gradient(160deg,var(--primary-bg) 0%,var(--primary-bg-strong) 40%,var(--white) 100%);padding:72px 24px 56px;text-align:center;position:relative;overflow:hidden}
.page-banner::after{content:'';position:absolute;top:-80px;right:-100px;width:300px;height:300px;background:radial-gradient(circle,rgba(37,99,235,0.07) 0%,transparent 60%);border-radius:50%}
.page-banner-inner{max-width:800px;margin:0 auto;position:relative;z-index:1}
.page-banner .section-tag{display:inline-block;font-size:0.8rem;font-weight:600;color:var(--primary);padding:4px 14px;background:var(--primary-bg);border-radius:20px;margin-bottom:16px;letter-spacing:0.05em}
.page-banner h1{font-size:clamp(1.8rem,4vw,2.6rem);font-weight:800;letter-spacing:-0.02em;margin-bottom:12px}
.page-banner h1 span{background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.page-banner p{font-size:1.08rem;color:var(--text-secondary);max-width:600px;margin:0 auto}

/* ===== Section Common ===== */
.section{padding:80px 24px}
.section-inner{max-width:var(--max-width);margin:0 auto}
.section-gray{background:var(--bg-light)}
.section-tag{display:inline-block;font-size:0.8rem;font-weight:600;color:var(--primary);padding:4px 14px;background:var(--primary-bg);border-radius:20px;margin-bottom:12px;letter-spacing:0.05em}
.section-title{font-size:clamp(1.6rem,3vw,2.2rem);font-weight:700;letter-spacing:-0.02em;margin-bottom:12px}
.section-desc{font-size:1.05rem;color:var(--text-secondary);max-width:640px;margin-bottom:48px}

/* ===== Feature Overview Grid (index) ===== */
.overview-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px
}
.overview-card{
  background:white;
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:36px 28px;
  text-decoration:none;
  color:inherit;
  transition:all var(--transition);
  position:relative;
  overflow:hidden
}
.overview-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-lg);
  border-color:var(--primary-light)
}
.overview-card::before{
  content:'';position:absolute;
  top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  opacity:0;transition:opacity var(--transition)
}
.overview-card:hover::before{opacity:1}
.overview-card-icon{
  width:56px;height:56px;
  background:var(--primary-bg);
  border-radius:var(--radius-md);
  display:flex;align-items:center;justify-content:center;
  font-size:1.5rem;margin-bottom:20px;
  transition:all var(--transition)
}
.overview-card:hover .overview-card-icon{
  background:var(--primary);
  color:white
}
.overview-card h3{
  font-size:1.1rem;font-weight:700;margin-bottom:8px
}
.overview-card p{
  font-size:0.9rem;color:var(--text-secondary);line-height:1.6
}

/* ===== Stats ===== */
.stats-section{
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:white
}
.stats-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:32px;text-align:center
}
.stat-item .stat-num{
  font-size:2.8rem;
  font-weight:800;
  letter-spacing:-0.02em
}
.stat-item .stat-label{
  font-size:0.9rem;
  opacity:0.85;
  margin-top:4px
}

/* ===== SEO Content ===== */
.seo-section{background:var(--bg-light)}
.seo-content{
  max-width:var(--max-width);
  margin:0 auto;
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:24px
}
.seo-card{
  background:white;border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:0 0 28px 0;
  transition:all var(--transition);overflow:hidden
}
.seo-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.seo-card-header{
  padding:32px 28px 20px;
  position:relative;overflow:hidden
}
.seo-card-header::before{
  content:'';position:absolute;
  top:-40px;right:-40px;width:120px;height:120px;
  border-radius:50%;opacity:0.08
}
.seo-card:nth-child(1) .seo-card-header::before{background:var(--primary)}
.seo-card:nth-child(2) .seo-card-header::before{background:#0d9488}
.seo-card:nth-child(3) .seo-card-header::before{background:#d97706}
.seo-card-icon{
  width:56px;height:56px;border-radius:var(--radius-md);
  display:flex;align-items:center;justify-content:center;
  font-size:1.5rem;margin-bottom:16px
}
.seo-card:nth-child(1) .seo-card-icon{background:var(--primary-bg);color:var(--primary)}
.seo-card:nth-child(2) .seo-card-icon{background:#f0fdfa;color:#0d9488}
.seo-card:nth-child(3) .seo-card-icon{background:#fffbeb;color:#d97706}
.seo-card h3{font-size:1.1rem;font-weight:700;margin-bottom:10px;position:relative;z-index:1}
.seo-card:nth-child(1) h3{color:var(--primary)}
.seo-card:nth-child(2) h3{color:#0d9488}
.seo-card:nth-child(3) h3{color:#d97706}
.seo-card-header p{font-size:0.87rem;color:var(--text-secondary);line-height:1.6;position:relative;z-index:1}
.seo-card-features{
  padding:20px 28px;
  border-top:1px solid var(--border-light);
  display:flex;flex-direction:column;gap:10px
}
.seo-feature{
  display:flex;align-items:center;gap:10px;
  font-size:0.85rem;color:var(--text-secondary);line-height:1.5
}
.seo-feature-icon{
  width:24px;height:24px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:0.6rem;flex-shrink:0;
  color:white
}
.seo-card:nth-child(1) .seo-feature-icon{background:var(--primary)}
.seo-card:nth-child(2) .seo-feature-icon{background:#0d9488}
.seo-card:nth-child(3) .seo-feature-icon{background:#d97706}

/* ===== Deployment Section ===== */
.deploy-grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:24px;margin-top:40px
}
.deploy-card{
  background:white;border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:36px 28px 28px;
  text-align:center;transition:all var(--transition)
}
.deploy-card:hover{border-color:var(--primary-light);box-shadow:var(--shadow-md)}
.deploy-card h3{font-size:1.05rem;font-weight:700;margin-bottom:8px;color:var(--primary)}
.deploy-card .deploy-desc{font-size:0.87rem;color:var(--text-secondary);line-height:1.6;margin-bottom:20px}
.deploy-diagram{
  background:var(--bg-light);border:1px solid var(--border);
  border-radius:var(--radius-md);padding:20px;
  position:relative;min-height:160px;
  display:flex;align-items:center;justify-content:center
}
.deploy-lan{display:flex;align-items:center;gap:16px}
.deploy-server{
  width:48px;height:64px;
  background:linear-gradient(180deg,var(--primary),var(--primary-dark));
  border-radius:4px;position:relative;
  display:flex;flex-direction:column;align-items:center;gap:3px;padding:4px 0
}
.deploy-server::after{
  content:'SVR';
  position:absolute;top:-18px;left:50%;transform:translateX(-50%);
  font-size:0.6rem;font-weight:700;color:var(--text-secondary)
}
.deploy-slot{width:24px;height:2px;background:rgba(255,255,255,0.5);border-radius:1px}
.deploy-switch{
  width:56px;height:28px;
  background:var(--primary-bg);border:2px solid var(--primary);
  border-radius:4px;display:flex;align-items:center;justify-content:center;
  gap:3px;position:relative
}
.deploy-switch::after{
  content:'SW';
  position:absolute;bottom:-16px;left:50%;transform:translateX(-50%);
  font-size:0.6rem;font-weight:700;color:var(--text-secondary)
}
.deploy-switch-port{width:4px;height:8px;background:var(--primary);border-radius:1px}
.deploy-devices{display:flex;flex-direction:column;gap:8px}
.deploy-device{
  display:flex;align-items:center;gap:6px;
  padding:6px 10px;background:white;border:1px solid var(--border);
  border-radius:4px;font-size:0.65rem;color:var(--text-secondary)
}
.deploy-device-icon{
  width:20px;height:20px;
  background:var(--primary-bg);border-radius:3px;
  display:flex;align-items:center;justify-content:center;font-size:0.55rem
}
.deploy-lines{width:2px;height:20px;background:var(--border);margin:0 auto}
.deploy-intranet{display:flex;align-items:center;gap:12px}
.deploy-building{
  width:60px;height:80px;
  background:var(--primary-bg);border:2px solid var(--primary);
  border-radius:4px;position:relative;
  display:flex;flex-direction:column;justify-content:flex-end;gap:4px;
  padding:6px 4px
}
.deploy-building::after{
  content:'内网';
  position:absolute;top:-18px;left:50%;transform:translateX(-50%);
  font-size:0.6rem;font-weight:700;color:var(--text-secondary)
}
.deploy-floor{height:6px;background:var(--primary);opacity:0.3;border-radius:1px}
.deploy-floor.active{opacity:1}
.deploy-wan-server{
  width:48px;height:64px;
  background:linear-gradient(180deg,var(--primary),var(--primary-dark));
  border-radius:4px;position:relative;
  display:flex;flex-direction:column;align-items:center;gap:3px;padding:4px 0
}
.deploy-wan-server::after{
  content:'服务器';
  position:absolute;top:-18px;left:50%;transform:translateX(-50%);
  font-size:0.6rem;font-weight:700;color:var(--text-secondary)
}
.deploy-inner-clients{display:flex;gap:4px;flex-wrap:wrap;justify-content:center;margin-top:8px}
.deploy-client{
  width:28px;height:32px;background:white;border:1.5px solid var(--primary-light);
  border-radius:3px;position:relative;
  display:flex;align-items:center;justify-content:center;
  font-size:0.5rem;color:var(--primary)
}
.deploy-client::after{content:'PC';position:absolute;bottom:-14px;font-size:0.55rem;color:var(--text-light)}
.deploy-vpn{display:flex;align-items:center;gap:10px}
.deploy-site{display:flex;flex-direction:column;align-items:center;gap:6px}
.deploy-site-building{
  width:48px;height:56px;background:var(--primary-bg);border:2px solid var(--primary);
  border-radius:4px;display:flex;flex-direction:column;justify-content:flex-end;gap:3px;
  padding:4px 3px;position:relative
}
.deploy-site-building::after{
  content:attr(data-label);position:absolute;bottom:-16px;left:50%;transform:translateX(-50%);
  font-size:0.55rem;font-weight:700;color:var(--text-secondary);white-space:nowrap
}
.deploy-site-floor{height:5px;background:var(--primary);opacity:0.3;border-radius:1px}
.deploy-site-floor.active{opacity:1}
.deploy-vpn-tunnel{
  flex:1;height:2px;background:repeating-linear-gradient(90deg,var(--primary) 0,var(--primary) 6px,transparent 6px,transparent 12px);
  position:relative;min-width:40px
}
.deploy-vpn-label{
  position:absolute;top:-14px;left:50%;transform:translateX(-50%);
  font-size:0.55rem;font-weight:700;color:var(--primary);white-space:nowrap
}

/* ===== Split Layout ===== */
.split-layout{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;margin-top:40px}
.split-layout.reverse{direction:rtl}
.split-layout.reverse>*{direction:ltr}

/* ===== Feature Detail Card ===== */
.feature-detail{background:white;border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px;transition:all var(--transition)}
.feature-detail:hover{box-shadow:var(--shadow-md);border-color:var(--primary-light)}
.feature-detail-icon{width:48px;height:48px;background:var(--primary-bg);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:1.3rem;margin-bottom:16px}
.feature-detail h3{font-size:1.15rem;font-weight:700;margin-bottom:8px}
.feature-detail p{font-size:0.92rem;color:var(--text-secondary);line-height:1.7}
.feature-detail ul{margin-top:12px;padding-left:18px}
.feature-detail ul li{font-size:0.88rem;color:var(--text-secondary);margin-bottom:6px;line-height:1.6}

/* ===== Visual Illustration ===== */
.visual-illustration{background:white;border:1px solid var(--border);border-radius:var(--radius-lg);padding:40px;min-height:380px;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;box-shadow:var(--shadow-sm)}
.visual-illustration::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent))}

/* ===== Typing Demo ===== */
.typing-demo{width:100%;position:relative;z-index:1}
.typing-doc{background:var(--bg-light);border:1px solid var(--border);border-radius:var(--radius-md);padding:24px;margin-bottom:20px}
.typing-doc-line{height:5px;background:var(--border);border-radius:3px;margin-bottom:10px}
.typing-doc-line.short{width:60%}
.typing-doc-line.cursor{width:28px;background:var(--primary);animation:blink 1s infinite}
.typing-audio{display:flex;align-items:flex-end;gap:3px;justify-content:center;height:44px;margin-bottom:16px}
.typing-audio .bar{width:4px;border-radius:2px;background:var(--primary);animation:audioAnim 0.6s ease-in-out infinite alternate}
.typing-audio .bar:nth-child(odd){animation-delay:0.15s}
.typing-audio .bar:nth-child(3n){animation-delay:0.3s;animation-duration:0.8s}
.typing-audio .bar:nth-child(4n+1){animation-delay:0.45s;animation-duration:0.5s}
.typing-keys{display:flex;gap:6px;justify-content:center;flex-wrap:wrap}
.typing-key{width:36px;height:36px;background:var(--bg-light);border:1px solid var(--border);border-radius:5px;display:flex;align-items:center;justify-content:center;font-size:0.7rem;color:var(--text-secondary);transition:all 0.15s}
.typing-key.active{background:var(--primary-bg);border-color:var(--primary);color:var(--primary);box-shadow:0 0 8px rgba(37,99,235,0.15)}

/* ===== Func Grid ===== */
.func-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:40px}

/* ===== SEO Feature Grid & Card ===== */
.seo-feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:40px}
.seo-feature-card{background:white;border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;transition:all var(--transition)}
.seo-feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.seo-feature-card-top{height:6px}
.seo-feature-card-body{padding:24px 22px 22px}
.seo-feature-card-icon{font-size:1.6rem;margin-bottom:12px;line-height:1}
.seo-feature-card-body h4{font-size:0.95rem;font-weight:700;margin-bottom:8px}
.seo-feature-card-body p{font-size:0.83rem;color:var(--text-secondary);line-height:1.6}

/* ===== Flow Architecture ===== */
.flow-section{background:linear-gradient(180deg,var(--white) 0%,var(--bg-light) 100%)}
.flow-arch{display:flex;flex-direction:column;gap:24px;margin-top:40px}
.flow-phase{position:relative}
.flow-phase-label{display:flex;align-items:center;gap:8px;margin-bottom:16px;font-size:0.82rem;font-weight:700;color:var(--primary);letter-spacing:0.05em}
.flow-phase-label::before{content:'';width:8px;height:8px;border-radius:2px;background:var(--primary)}
.flow-phase-label::after{content:'';flex:1;height:1px;background:var(--border)}
.flow-phase-cards{display:flex;gap:0;align-items:stretch;position:relative}
.flow-card{flex:1;min-width:0;background:white;border:1px solid var(--border);border-radius:var(--radius-md);padding:24px 18px 20px;position:relative;transition:all var(--transition);display:flex;flex-direction:column;align-items:center;text-align:center}
.flow-card:hover{border-color:var(--primary-light);box-shadow:var(--shadow-lg);transform:translateY(-3px);z-index:2}
.flow-card::after{content:'';position:absolute;top:0;left:0;right:0;height:3px;border-radius:var(--radius-md) var(--radius-md) 0 0}
.flow-card-icon{width:48px;height:48px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:1.3rem;margin-bottom:12px;background:var(--primary-bg);color:var(--primary);transition:all var(--transition)}
.flow-card:hover .flow-card-icon{background:var(--primary);color:white}
.flow-card-num{position:absolute;top:-12px;left:50%;transform:translateX(-50%);width:24px;height:24px;border-radius:50%;background:var(--primary);color:white;font-size:0.7rem;font-weight:800;display:flex;align-items:center;justify-content:center;border:2px solid white;box-shadow:var(--shadow-sm)}
.flow-card h4{font-size:0.92rem;font-weight:700;margin-bottom:6px}
.flow-card p{font-size:0.78rem;color:var(--text-secondary);line-height:1.5}
.phase-prepare .flow-card::after{background:linear-gradient(90deg,var(--primary),var(--primary-light))}
.phase-prepare .flow-card-num{background:var(--primary)}
.phase-resource .flow-card::after{background:linear-gradient(90deg,#0d9488,#14b8a6)}
.phase-resource .flow-card-num{background:#0d9488}
.phase-resource .flow-card-icon{background:#f0fdfa;color:#0d9488}
.phase-resource .flow-card:hover .flow-card-icon{background:#0d9488;color:white}
.phase-resource .flow-phase-label{color:#0d9488}
.phase-resource .flow-phase-label::before{background:#0d9488}
.phase-dispatch .flow-card::after{background:linear-gradient(90deg,#d97706,#f59e0b)}
.phase-dispatch .flow-card-num{background:#d97706}
.phase-dispatch .flow-card-icon{background:#fffbeb;color:#d97706}
.phase-dispatch .flow-card:hover .flow-card-icon{background:#d97706;color:white}
.phase-dispatch .flow-phase-label{color:#d97706}
.phase-dispatch .flow-phase-label::before{background:#d97706}
.flow-card-arrow{width:36px;display:flex;align-items:center;justify-content:center;flex-shrink:0;color:var(--border);font-size:1.2rem;position:relative;z-index:0}
.flow-card-arrow::after{content:'';position:absolute;left:0;right:0;top:50%;height:2px;background:var(--border)}
.flow-card-arrow span{position:relative;z-index:1;background:var(--bg-light);padding:0 4px}
.flow-control-bar{display:flex;align-items:center;justify-content:center;gap:16px;padding:20px 40px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));border-radius:var(--radius-xl);color:white;margin-top:8px;box-shadow:0 8px 24px rgba(37,99,235,0.25)}
.flow-control-bar .flow-control-icon{width:44px;height:44px;border-radius:50%;background:rgba(255,255,255,0.2);display:flex;align-items:center;justify-content:center;font-size:1.2rem}
.flow-control-bar .flow-control-text{font-size:0.95rem;font-weight:700}
.flow-control-bar .flow-control-sub{font-size:0.78rem;opacity:0.85;margin-top:2px}
.flow-legend{display:flex;gap:20px;justify-content:center;margin-top:28px;flex-wrap:wrap}
.flow-legend-item{display:flex;align-items:center;gap:6px;font-size:0.78rem;color:var(--text-secondary)}
.flow-legend-dot{width:10px;height:10px;border-radius:2px}

/* ===== Scenario Grid ===== */
.scenario-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px}
.scenario-card{background:white;border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px;text-align:center;transition:all var(--transition)}
.scenario-card:hover{box-shadow:var(--shadow-md);border-color:var(--primary-light);transform:translateY(-4px)}
.scenario-icon{width:56px;height:56px;background:var(--primary-bg);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin:0 auto 16px}
.scenario-card h4{font-size:1rem;font-weight:700;margin-bottom:8px}
.scenario-card p{font-size:0.85rem;color:var(--text-secondary);line-height:1.6}

/* ===== Exam Visual ===== */
.exam-visual{width:100%;position:relative;z-index:1}
.exam-paper{background:var(--bg-light);border:1px solid var(--border);border-radius:var(--radius-md);padding:24px;margin-bottom:16px}
.exam-q{display:flex;align-items:flex-start;gap:10px;margin-bottom:14px}
.exam-q-num{width:28px;height:28px;border-radius:50%;background:var(--primary-bg);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:0.8rem;font-weight:700;flex-shrink:0}
.exam-q-text{flex:1;height:8px;background:var(--border);border-radius:4px;margin-top:10px}
.exam-opts{display:grid;grid-template-columns:1fr 1fr;gap:8px;padding-left:38px}
.exam-opt{padding:10px 14px;background:white;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:0.8rem;color:var(--text-secondary)}
.exam-opt.selected{border-color:var(--primary);background:var(--primary-bg);color:var(--primary)}
.score-box{text-align:center;padding:24px;background:var(--primary-bg);border-radius:var(--radius-md)}
.score-num{font-size:2.8rem;font-weight:800;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.score-label{font-size:0.85rem;color:var(--text-secondary);margin-top:4px}

/* ===== Feature Row ===== */
.feature-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px}
.feature-item{background:white;border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px 28px;text-align:center;transition:all var(--transition)}
.feature-item:hover{box-shadow:var(--shadow-md);border-color:var(--primary-light);transform:translateY(-4px)}
.feature-item-icon{width:56px;height:56px;background:var(--primary-bg);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.4rem;margin:0 auto 16px}
.feature-item h4{font-size:1rem;font-weight:700;margin-bottom:8px}
.feature-item p{font-size:0.85rem;color:var(--text-secondary);line-height:1.6}

/* ===== Management Cards ===== */
.mgmt-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px}
.mgmt-card{background:white;border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px 24px;text-align:center;transition:all var(--transition);position:relative;overflow:hidden}
.mgmt-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--primary-light)}
.mgmt-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent));opacity:0;transition:opacity var(--transition)}
.mgmt-card:hover::before{opacity:1}
.mgmt-card-icon{width:64px;height:64px;margin:0 auto 18px;background:var(--primary-bg);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:1.6rem;transition:all var(--transition)}
.mgmt-card:hover .mgmt-card-icon{background:var(--primary);color:white}
.mgmt-card h3{font-size:1.05rem;font-weight:700;margin-bottom:8px}
.mgmt-card p{font-size:0.87rem;color:var(--text-secondary);line-height:1.6}

/* ===== Advantages ===== */
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px}
.adv-card{background:white;border:1px solid var(--border);border-radius:var(--radius-lg);padding:36px 28px;transition:all var(--transition)}
.adv-card:hover{box-shadow:var(--shadow-md);border-color:var(--primary-light)}
.adv-card .adv-icon{width:48px;height:48px;background:var(--primary-bg);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:1.3rem;margin-bottom:16px;color:var(--primary)}
.adv-card h4{font-size:1rem;font-weight:700;margin-bottom:8px}
.adv-card p{font-size:0.87rem;color:var(--text-secondary);line-height:1.6}

/* ===== Value Cards ===== */
.value-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:36px}
.value-card-item{background:white;border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px 28px 24px;transition:all var(--transition);position:relative;overflow:hidden}
.value-card-item:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);border-color:var(--primary-light)}
.value-card-item::before{content:'';position:absolute;top:0;left:0;right:0;height:4px}
.value-card-item:nth-child(1)::before{background:linear-gradient(90deg,var(--primary),var(--primary-light))}
.value-card-item:nth-child(2)::before{background:linear-gradient(90deg,#0d9488,#14b8a6)}
.value-card-item:nth-child(3)::before{background:linear-gradient(90deg,#d97706,#f59e0b)}
.value-card-icon{width:48px;height:48px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:1.3rem;margin-bottom:16px}
.value-card-item h4{font-size:1.05rem;font-weight:700;margin-bottom:8px}
.value-card-item p{font-size:0.85rem;color:var(--text-secondary);line-height:1.6;margin-bottom:12px}
.value-card-item ul{list-style:none;display:flex;flex-direction:column;gap:8px}
.value-card-item ul li{font-size:0.82rem;color:var(--text-secondary);padding-left:18px;position:relative;line-height:1.5}
.value-card-item ul li::before{content:'•';position:absolute;left:4px;font-weight:700}
.value-card-item:nth-child(1) ul li::before{color:var(--primary)}
.value-card-item:nth-child(2) ul li::before{color:#0d9488}
.value-card-item:nth-child(3) ul li::before{color:#d97706}

/* ===== Answer Grid ===== */
.answer-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px}

/* ===== Contact Section ===== */
#contact{scroll-margin-top:80px}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;margin-top:40px}
.contact-info{display:flex;flex-direction:column;gap:20px}
.contact-item{display:flex;align-items:flex-start;gap:16px;padding:20px;background:var(--bg-light);border-radius:var(--radius-md);transition:all var(--transition)}
.contact-item:hover{background:var(--primary-bg);box-shadow:var(--shadow-sm)}
.contact-item-icon{width:44px;height:44px;background:var(--primary-bg);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:1.1rem;flex-shrink:0;color:var(--primary)}
.contact-item h4{font-size:0.9rem;font-weight:700;margin-bottom:4px}
.contact-item p{font-size:0.85rem;color:var(--text-secondary)}
.contact-form{background:white;border:1px solid var(--border);border-radius:var(--radius-lg);padding:36px;box-shadow:var(--shadow-sm)}
.contact-form h3{font-size:1.2rem;font-weight:700;margin-bottom:20px}
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:0.85rem;font-weight:600;margin-bottom:6px;color:var(--text-primary)}
.form-group input,.form-group textarea{width:100%;padding:12px 16px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:0.9rem;font-family:inherit;transition:border-color var(--transition);outline:none}
.form-group input:focus,.form-group textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,0.1)}
.form-group textarea{resize:vertical;min-height:100px}
.form-submit{width:100%;padding:14px;background:var(--primary);color:white;border:none;border-radius:var(--radius-xl);font-size:0.95rem;font-weight:600;cursor:pointer;transition:all var(--transition)}
.form-submit:hover{background:var(--primary-dark);box-shadow:var(--shadow-md)}

/* ===== Simple Contact (contact.html) ===== */
.contact-info-simple{max-width:600px;margin:0 auto;display:flex;flex-direction:column;gap:20px}

/* ===== FAQ Section ===== */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:40px}
.faq-item{background:white;border:1px solid var(--border);border-radius:var(--radius-md);padding:28px;transition:all var(--transition)}
.faq-item:hover{border-color:var(--primary-light);box-shadow:var(--shadow-sm)}
.faq-item h4{font-size:1rem;font-weight:700;margin-bottom:10px;color:var(--primary)}
.faq-item p{font-size:0.88rem;color:var(--text-secondary);line-height:1.7}

/* ===== Service Highlight ===== */
.svc-highlight{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:40px}
.svc-card{background:white;border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px 28px;transition:all var(--transition);display:flex;gap:20px;align-items:flex-start}
.svc-card:hover{box-shadow:var(--shadow-md);border-color:var(--primary-light)}
.svc-card-icon{width:52px;height:52px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:1.4rem;flex-shrink:0;color:white}
.svc-card:nth-child(1) .svc-card-icon,.svc-card:nth-child(2) .svc-card-icon{background:linear-gradient(135deg,var(--primary),var(--primary-light))}
.svc-card:nth-child(3) .svc-card-icon,.svc-card:nth-child(4) .svc-card-icon{background:linear-gradient(135deg,#0d9488,#14b8a6)}
.svc-card h4{font-size:1rem;font-weight:700;margin-bottom:6px}
.svc-card p{font-size:0.85rem;color:var(--text-secondary);line-height:1.6}

/* ===== Custom Grid ===== */
.custom-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px}
.custom-card{background:white;border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px 24px;text-align:center;transition:all var(--transition);position:relative;overflow:hidden}
.custom-card:hover{box-shadow:var(--shadow-md);border-color:var(--primary-light);transform:translateY(-4px)}
.custom-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px}
.custom-card:nth-child(1)::before{background:linear-gradient(90deg,var(--primary),var(--primary-light))}
.custom-card:nth-child(2)::before{background:linear-gradient(90deg,#0d9488,#14b8a6)}
.custom-card:nth-child(3)::before{background:linear-gradient(90deg,#7c3aed,#a78bfa)}
.custom-icon{width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin:0 auto 16px}
.custom-card:nth-child(1) .custom-icon{background:var(--primary-bg);color:var(--primary)}
.custom-card:nth-child(2) .custom-icon{background:#f0fdfa;color:#0d9488}
.custom-card:nth-child(3) .custom-icon{background:#f5f3ff;color:#7c3aed}
.custom-card h4{font-size:1rem;font-weight:700;margin-bottom:8px}
.custom-card p{font-size:0.85rem;color:var(--text-secondary);line-height:1.6}

/* ===== Scoring Grid ===== */
.scoring-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:40px}
.scoring-card{background:white;border:1px solid var(--border);border-radius:var(--radius-md);padding:24px;transition:all var(--transition)}
.scoring-card:hover{border-color:var(--primary-light);box-shadow:var(--shadow-sm)}
.scoring-card h4{font-size:0.95rem;font-weight:700;margin-bottom:6px;color:var(--primary)}
.scoring-card p{font-size:0.83rem;color:var(--text-secondary);line-height:1.6}

/* ===== Case Grid ===== */
.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;margin-top:40px}
.case-card{background:white;border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;transition:all var(--transition)}
.case-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.case-card-header{padding:28px 28px 0;display:flex;align-items:flex-start;gap:16px}
.case-card-icon{width:52px;height:52px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:1.4rem;flex-shrink:0;color:white}
.case-card:nth-child(1) .case-card-icon,.case-card:nth-child(2) .case-card-icon{background:linear-gradient(135deg,var(--primary),var(--primary-light))}
.case-card:nth-child(3) .case-card-icon,.case-card:nth-child(4) .case-card-icon{background:linear-gradient(135deg,#0d9488,#14b8a6)}
.case-card:nth-child(5) .case-card-icon,.case-card:nth-child(6) .case-card-icon{background:linear-gradient(135deg,#d97706,#f59e0b)}
.case-card-tag{display:inline-block;font-size:0.72rem;font-weight:600;color:var(--primary);padding:2px 10px;background:var(--primary-bg);border-radius:12px;margin-bottom:8px}
.case-card h3{font-size:1.1rem;font-weight:700;margin-bottom:6px}
.case-card-meta{font-size:0.8rem;color:var(--text-light);margin-bottom:16px}
.case-card-body{padding:8px 28px 20px}
.case-card-body p{font-size:0.87rem;color:var(--text-secondary);line-height:1.7;margin-bottom:14px}
.case-highlights{display:flex;flex-wrap:wrap;gap:8px}
.case-highlight{display:flex;align-items:center;gap:6px;font-size:0.76rem;color:var(--text-secondary);padding:6px 12px;background:var(--bg-light);border-radius:20px}
.case-highlight-icon{color:var(--primary);font-size:0.7rem}

/* ===== About Intro & Stats ===== */
.about-intro{display:grid;grid-template-columns:1.2fr 0.8fr;gap:48px;align-items:center;margin-top:32px}
.about-intro-text p{font-size:0.95rem;color:var(--text-secondary);line-height:1.8;margin-bottom:16px}
.about-stats{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.about-stat{background:var(--primary-bg);border-radius:var(--radius-md);padding:24px;text-align:center}
.about-stat-num{font-size:1.8rem;font-weight:800;color:var(--primary);line-height:1.2}
.about-stat-label{font-size:0.8rem;color:var(--text-secondary);margin-top:4px}

/* ===== Values Grid (about) ===== */
.values-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:40px}
.value-card{background:white;border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px 24px;text-align:center;transition:all var(--transition)}
.value-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--primary-light)}
.value-icon{width:56px;height:56px;background:var(--primary-bg);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.4rem;margin:0 auto 16px;color:var(--primary)}
.value-card h4{font-size:1rem;font-weight:700;margin-bottom:8px}
.value-card p{font-size:0.83rem;color:var(--text-secondary);line-height:1.6}

/* ===== Timeline ===== */
.timeline{margin-top:40px;position:relative;padding-left:40px}
.timeline::before{content:'';position:absolute;left:15px;top:0;bottom:0;width:2px;background:var(--border)}
.timeline-item{position:relative;margin-bottom:32px;padding-left:24px}
.timeline-item::before{content:'';position:absolute;left:-29px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--primary);border:3px solid var(--primary-bg);box-shadow:0 0 0 4px var(--primary-bg)}
.timeline-year{font-size:0.85rem;font-weight:700;color:var(--primary);margin-bottom:4px}
.timeline-item h4{font-size:1rem;font-weight:700;margin-bottom:4px}
.timeline-item p{font-size:0.87rem;color:var(--text-secondary);line-height:1.6}

/* ===== Team Grid ===== */
.team-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px}
.team-card{background:white;border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px 24px;text-align:center;transition:all var(--transition)}
.team-card:hover{box-shadow:var(--shadow-md);border-color:var(--primary-light)}
.team-avatar{width:72px;height:72px;border-radius:50%;background:var(--primary-bg);display:flex;align-items:center;justify-content:center;font-size:1.8rem;margin:0 auto 16px;color:var(--primary)}
.team-card h4{font-size:1rem;font-weight:700}
.team-role{font-size:0.82rem;color:var(--primary);font-weight:600;margin:4px 0 10px}
.team-card p{font-size:0.83rem;color:var(--text-secondary);line-height:1.5}

/* ===== Footer ===== */
.footer{background:var(--bg-light);border-top:1px solid var(--border);padding:56px 24px 28px}
.footer-grid{max-width:var(--max-width);margin:0 auto 40px;display:grid;grid-template-columns:2fr 1fr 1fr 0.9fr 0.9fr;gap:40px}
.footer-col h4{font-size:0.9rem;font-weight:700;margin-bottom:16px}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:8px}
.footer-col ul li{font-size:0.85rem;color:var(--text-secondary)}
.footer-col ul li a{color:var(--text-secondary);text-decoration:none;transition:color var(--transition)}
.footer-col ul li a:hover{color:var(--primary)}
.footer-logo-name{font-size:1.2rem;font-weight:800;color:var(--primary);margin-bottom:10px}
.footer-desc{font-size:0.85rem;color:var(--text-secondary);line-height:1.6}
.footer-bottom{max-width:var(--max-width);margin:0 auto;padding-top:20px;border-top:1px solid var(--border);display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;font-size:0.8rem;color:var(--text-light)}
.footer-qr{text-align:center}
.ft-qr-box{display:inline-block}
.ft-qr-img{width:80px;height:80px;border-radius:4px;border:1px solid var(--border)}
.ft-qr-text{font-size:0.75rem;color:var(--text-light);margin-top:6px}

/* ===== Reveal Animation ===== */
.reveal{opacity:0;transform:translateY(30px);transition:opacity 0.7s ease,transform 0.7s ease}
.reveal.visible{opacity:1;transform:translateY(0)}
.reveal-d1{transition-delay:0.1s}
.reveal-d2{transition-delay:0.2s}
.reveal-d3{transition-delay:0.3s}

/* ===== Keyframes ===== */
@keyframes pulse{0%,100%{opacity:1}50%{opacity:0.4}}
@keyframes blink{0%,100%{opacity:1}50%{opacity:0}}
@keyframes audioAnim{from{height:8px}to{height:36px}}

/* ===== Touch & Mobile Optimizations ===== */
@media(hover:none){
  .overview-card:hover,.mgmt-card:hover,.adv-card:hover,.feature-detail:hover,.feature-item:hover,.scenario-card:hover{transform:none}
  .overview-card:active,.mgmt-card:active,.adv-card:active,.feature-detail:active,.feature-item:active,.scenario-card:active{transform:scale(0.98)}
  .btn:hover{transform:none}
  .btn:active{transform:scale(0.96)}
  .btn-admin:hover{box-shadow:0 4px 16px rgba(37,99,235,0.25)}
  .btn-admin:active{box-shadow:0 2px 8px rgba(37,99,235,0.2)}
  .btn-candidate:hover{box-shadow:0 4px 16px rgba(13,148,136,0.25)}
  .btn-candidate:active{box-shadow:0 2px 8px rgba(13,148,136,0.2)}
  .contact-item:hover,.faq-item:hover{transform:none;background:var(--bg-light)}
  .contact-item:active,.faq-item:active{transform:scale(0.98);background:var(--primary-bg)}
}

/* ===== Responsive ===== */
@media(max-width:1024px){
  .hero-inner{grid-template-columns:1fr}
  .hero-visual{display:none}
  .overview-grid{grid-template-columns:repeat(2,1fr)}
  .deploy-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .seo-content{grid-template-columns:1fr 1fr;gap:20px}
  .seo-card-header{padding:28px 22px 16px}
  .seo-card-features{padding:16px 22px}
  .split-layout{grid-template-columns:1fr;gap:32px}
  .split-layout.reverse .visual-illustration{order:-1}
  .seo-feature-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .scenario-grid{grid-template-columns:repeat(2,1fr)}
  .feature-row{grid-template-columns:repeat(2,1fr)}
  .mgmt-grid{grid-template-columns:repeat(2,1fr)}
  .adv-grid{grid-template-columns:1fr}
  .value-cards{grid-template-columns:1fr}
  .answer-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .svc-highlight{grid-template-columns:1fr}
  .custom-grid{grid-template-columns:repeat(2,1fr)}
  .case-grid{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .about-intro{grid-template-columns:1fr}
  .values-grid{grid-template-columns:repeat(2,1fr)}
  .team-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr 1fr}
}
@media(max-width:768px){
  :root{--nav-height:56px;font-size:15px}
  .nav-links{display:none;position:fixed;top:var(--nav-height);left:0;right:0;bottom:0;flex-direction:column;background:white;padding:12px 16px;border-top:1px solid var(--border);box-shadow:var(--shadow-lg);gap:0;overflow-y:auto;z-index:999}
  .nav-links a{padding:14px 16px;font-size:1rem;border-radius:var(--radius-sm);width:100%}
  .nav-links.open{display:flex}
  .nav-toggle{display:flex}
  .nav-logo{font-size:1.05rem}
  .nav-logo-icon{width:30px;height:30px;font-size:0.9rem}
  .hero{padding:44px 16px 36px;min-height:auto}
  .hero h1{font-size:1.65rem}
  .hero p{font-size:0.92rem;margin-bottom:24px}
  .hero-btns{flex-direction:column;align-items:stretch}
  .hero-btns .btn{justify-content:center}
  .page-banner h1{font-size:1.6rem}
  .page-banner p{font-size:0.9rem}
  .page-banner{padding:44px 16px 36px}
  .section{padding:48px 16px}
  .section-title{font-size:1.4rem}
  .section-desc{font-size:0.9rem;margin-bottom:32px}
  .overview-grid{grid-template-columns:1fr;gap:16px}
  .deploy-grid{grid-template-columns:1fr;gap:16px}
  .overview-card{padding:28px 22px}
  .overview-card h3{font-size:1rem}
  .overview-card p{font-size:0.83rem}
  .stats-grid{grid-template-columns:1fr 1fr;gap:16px;padding:0}
  .stat-item .stat-num{font-size:2rem}
  .stat-item .stat-label{font-size:0.78rem}
  .seo-content{grid-template-columns:1fr;gap:20px}
  .seo-card h3{font-size:1rem}
  .seo-card-header p{font-size:0.82rem}
  .seo-feature{font-size:0.82rem}
  .func-grid,.feature-row{grid-template-columns:1fr;gap:16px}
  .seo-feature-grid{grid-template-columns:1fr;gap:14px}
  .seo-feature-card-body{padding:20px 18px 18px}
  .scenario-grid{grid-template-columns:1fr;gap:16px}
  .flow-phase-cards{flex-direction:column;gap:0}
  .flow-card{flex-direction:row;text-align:left;align-items:flex-start;padding:18px 16px 18px 42px}
  .flow-card-icon{width:38px;height:38px;margin:0 12px 0 0;font-size:1rem;flex-shrink:0}
  .flow-card h4{font-size:0.85rem;margin-bottom:4px}
  .flow-card p{font-size:0.76rem}
  .flow-card-num{top:50%;left:8px;transform:translateY(-50%)}
  .flow-card-arrow{width:100%;height:24px;justify-content:flex-start;padding-left:20px}
  .flow-card-arrow::after{left:0;right:auto;width:12px;top:50%;height:2px}
  .flow-card-arrow span{font-size:0.8rem}
  .flow-control-bar{flex-direction:column;text-align:center;padding:18px 24px}
  .flow-legend{gap:12px}
  .feature-detail{padding:24px}
  .feature-detail h3{font-size:1rem}
  .feature-detail p{font-size:0.85rem}
  .feature-detail ul li{font-size:0.82rem}
  .visual-illustration{padding:24px;min-height:280px}
  .typing-doc{padding:16px}
  .typing-key{width:30px;height:30px;font-size:0.62rem}
  .exam-paper{padding:18px}
  .exam-opts{grid-template-columns:1fr;padding-left:0}
  .score-num{font-size:2.2rem}
  .feature-item{padding:24px 20px}
  .feature-item-icon{width:44px;height:44px;font-size:1.2rem}
  .mgmt-grid{grid-template-columns:1fr;gap:16px}
  .mgmt-card{padding:28px 20px}
  .mgmt-card-icon{width:52px;height:52px;font-size:1.3rem}
  .mgmt-card h3{font-size:1rem}
  .mgmt-card p{font-size:0.83rem}
  .value-card-item{padding:24px 20px 20px}
  .adv-card{padding:28px 20px}
  .adv-card h4{font-size:0.95rem}
  .adv-card p{font-size:0.83rem}
  .contact-grid{gap:28px}
  .contact-form{padding:28px 20px}
  .contact-form h3{font-size:1.1rem}
  .form-group input,.form-group textarea{padding:14px;font-size:1rem}
  .form-submit{padding:16px;font-size:1rem}
  .contact-item{padding:16px}
  .custom-grid{grid-template-columns:1fr}
  .scoring-grid{grid-template-columns:1fr}
  .svc-card{flex-direction:column;gap:12px;padding:24px}
  .case-card-header{padding:22px 22px 0}
  .case-card-body{padding:8px 22px 18px}
  .faq-grid{gap:16px}
  .faq-item{padding:22px}
  .scenario-card{padding:22px}
  .scenario-icon{width:44px;height:44px;font-size:1.2rem}
  .values-grid{grid-template-columns:1fr}
  .team-grid{grid-template-columns:1fr}
  .about-stats{grid-template-columns:1fr}
  .timeline{padding-left:28px}
  .footer{padding:40px 16px 24px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;text-align:center;gap:6px}
}
@media(max-width:480px){
  .hero-badge{font-size:0.75rem;padding:5px 12px}
  .hero h1{font-size:1.4rem}
  .nav-logo{font-size:0.95rem}
  .stats-grid{gap:12px}
  .stat-item .stat-num{font-size:1.6rem}
  .page-banner h1{font-size:1.35rem}
  .page-banner{padding:36px 12px 32px}
  .section{padding:40px 12px}
  .mgmt-grid{gap:12px}
  .mgmt-card{padding:24px 16px}
  .adv-grid{gap:12px}
  .typing-keys{gap:4px}
  .typing-key{width:26px;height:26px;font-size:0.58rem}
  .typing-audio{gap:2px;height:36px}
  .exam-visual .exam-paper{font-size:0}
  .case-grid{gap:16px}
}