*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;line-height:1.7;color:#333;background:#fff;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none;transition:color .2s}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.3}
:root{
  --primary:#ed513a;
  --primary-dark:#d4432e;
  --primary-light:#fff0ed;
  --accent:#ff7b5f;
  --dark:#1a1a2e;
  --gray-900:#222;
  --gray-700:#555;
  --gray-500:#888;
  --gray-300:#d0d0d0;
  --gray-100:#f5f5f5;
  --white:#fff;
  --shadow:0 4px 24px rgba(0,0,0,.08);
  --shadow-lg:0 12px 48px rgba(0,0,0,.12);
  --radius:12px;
  --radius-sm:8px;
  --max-w:1200px;
}
.container{max-width:var(--max-w);margin:0 auto;padding:0 20px}
.section{padding:80px 0}
.section-alt{background:var(--gray-100)}
.section-primary{background:linear-gradient(135deg,var(--primary),var(--accent));color:var(--white)}
.text-center{text-align:center}
.text-primary{color:var(--primary)}
.section-title{font-size:2rem;margin-bottom:12px;position:relative}
.section-title::after{content:'';display:block;width:48px;height:4px;background:var(--primary);margin:12px auto 0;border-radius:2px}
.section-subtitle{color:var(--gray-500);font-size:1rem;margin-bottom:40px}
.btn{display:inline-block;padding:14px 36px;border-radius:50px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s;border:none;text-align:center}
.btn-primary{background:var(--primary);color:var(--white);box-shadow:0 4px 16px rgba(237,81,58,.3)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 8px 24px rgba(237,81,58,.4)}
.btn-outline{background:transparent;color:var(--primary);border:2px solid var(--primary)}
.btn-outline:hover{background:var(--primary);color:var(--white)}
.btn-outline-light{border-color:rgba(255,255,255,.6);color:var(--white)}
.btn-white{background:var(--white);color:var(--primary);box-shadow:0 4px 16px rgba(0,0,0,.1)}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,.15)}
.btn-sm{padding:10px 24px;font-size:.875rem}
.btn-lg{padding:16px 48px;font-size:1.125rem}
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.sec-cta{text-align:center;margin-top:40px}
.sec-cta--sm{margin-top:24px}
.header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,.95);backdrop-filter:blur(12px);box-shadow:0 1px 8px rgba(0,0,0,.06);transition:all .3s}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:8px}
.logo img{display:block;height:42px;width:auto}
.nav{display:flex;align-items:center;gap:28px}
.nav a{font-size:.9375rem;color:var(--gray-700);font-weight:500;position:relative;padding:4px 0}
.nav a:hover{color:var(--primary)}
.nav a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--primary);transition:width .3s}
.nav a:hover::after{width:100%}
.header-cta{display:flex;align-items:center;gap:12px}
.mobile-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px}
.mobile-toggle span{display:block;width:24px;height:2px;background:var(--gray-900);margin:5px 0;transition:all .3s}
.hero{padding-top:72px;min-height:100vh;display:flex;align-items:center;background:linear-gradient(135deg,#fff5f3 0%,#ffe8e2 30%,#fff 70%);position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:-100px;right:-200px;width:600px;height:600px;background:radial-gradient(circle,rgba(237,81,58,.08) 0%,transparent 70%);border-radius:50%}
.hero::after{content:'';position:absolute;bottom:-150px;left:-100px;width:400px;height:400px;background:radial-gradient(circle,rgba(255,123,95,.06) 0%,transparent 70%);border-radius:50%}
.hero-inner{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;position:relative;z-index:1}
.hero-content h1{font-size:2.75rem;line-height:1.2;margin-bottom:20px;color:var(--gray-900)}
.hero-content h1 .highlight{color:var(--primary);position:relative}
.hero-content h1 .highlight::after{content:'';position:absolute;bottom:4px;left:0;right:0;height:8px;background:rgba(237,81,58,.15);z-index:-1;border-radius:4px}
.hero-desc{font-size:1.125rem;color:var(--gray-700);margin-bottom:32px;line-height:1.8}
.hero-stats{display:flex;gap:32px;margin-bottom:36px}
.hero-stat{text-align:center}
.hero-stat-num{font-size:2rem;font-weight:800;color:var(--primary)}
.hero-stat-label{font-size:.8125rem;color:var(--gray-500);margin-top:4px}
.hero-buttons{display:flex;gap:16px;flex-wrap:wrap}
.hero-image{position:relative}
.hero-image img{border-radius:var(--radius);box-shadow:var(--shadow-lg);aspect-ratio:3/2;object-fit:cover;background:var(--gray-100)}
.hero-badge{position:absolute;background:var(--white);border-radius:var(--radius-sm);padding:12px 16px;box-shadow:var(--shadow);font-size:.875rem;font-weight:600}
.hero-badge-1{top:20px;left:-20px;color:var(--primary)}
.hero-badge-2{bottom:30px;right:-10px;color:var(--dark)}
.hero-badge-2 span{color:var(--primary)}
.trust-bar{padding:24px 0;background:var(--white);border-bottom:1px solid var(--gray-300)}
.trust-items{display:flex;justify-content:center;gap:48px;flex-wrap:wrap;align-items:center}
.trust-item{display:flex;align-items:center;gap:8px;color:var(--gray-700);font-size:.9375rem}
.trust-icon{width:24px;height:24px;background:var(--primary-light);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:.75rem}
.service-card{background:var(--white);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow);transition:all .3s;position:relative;overflow:hidden}
.service-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.service-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:var(--primary);transform:scaleX(0);transition:transform .3s;transform-origin:left}
.service-card:hover::before{transform:scaleX(1)}
.service-icon{width:56px;height:56px;background:var(--primary-light);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin-bottom:20px}
.service-card h3{font-size:1.25rem;margin-bottom:12px;color:var(--gray-900)}
.service-card p{color:var(--gray-700);font-size:.9375rem;line-height:1.7;margin-bottom:16px}
.service-tags{display:flex;flex-wrap:wrap;gap:8px}
.service-tag{background:var(--gray-100);color:var(--gray-700);font-size:.75rem;padding:4px 12px;border-radius:20px}
.method-card{background:var(--white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:all .3s}
.method-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.method-header{padding:24px;background:linear-gradient(135deg,var(--primary-light),#fff);text-align:center;border-bottom:1px solid var(--gray-300)}
.method-header h3{font-size:1.25rem;color:var(--primary);margin-bottom:4px}
.method-header p{color:var(--gray-500);font-size:.8125rem}
.method-body{padding:24px}
.method-body li{display:flex;align-items:flex-start;gap:10px;padding:10px 0;border-bottom:1px solid var(--gray-100);font-size:.9375rem;color:var(--gray-700)}
.method-body li::before{content:'';flex-shrink:0;width:6px;height:6px;background:var(--primary);border-radius:50%;margin-top:8px}
.method-badge{display:inline-block;background:var(--primary);color:var(--white);font-size:.75rem;padding:2px 10px;border-radius:12px;margin-bottom:8px}
.method-price{font-size:1.5rem;font-weight:800;color:var(--primary);text-align:center;padding:16px;background:var(--primary-light);margin:0 24px 24px;border-radius:var(--radius-sm)}
.method-price small{font-size:.75rem;color:var(--gray-500);font-weight:400}
.table-wrap{overflow-x:auto}
.price-table{width:100%;border-collapse:collapse;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.price-table thead{background:var(--primary);color:var(--white)}
.price-table th{padding:16px 20px;font-size:.9375rem;font-weight:600;text-align:left}
.price-table td{padding:14px 20px;font-size:.875rem;border-bottom:1px solid var(--gray-100)}
.price-table tbody tr:hover{background:var(--primary-light)}
.price-table tbody tr:nth-child(even){background:var(--gray-100)}
.price-table tbody tr:nth-child(even):hover{background:var(--primary-light)}
.price-tag{color:var(--primary);font-weight:700}
.price-note{text-align:center;margin-top:16px;color:var(--gray-500);font-size:.8125rem}
.knowledge-card{background:var(--white);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);border-left:4px solid var(--primary);transition:all .3s}
.knowledge-card:hover{transform:translateX(4px);box-shadow:var(--shadow-lg)}
.knowledge-card h3{font-size:1.125rem;margin-bottom:12px;color:var(--gray-900)}
.knowledge-card p{color:var(--gray-700);font-size:.9375rem;line-height:1.7}
.knowledge-card .tag{display:inline-block;background:var(--primary-light);color:var(--primary);font-size:.75rem;padding:3px 10px;border-radius:12px;margin-top:12px}
.faq-wrap{max-width:800px;margin:0 auto}
.faq-note{color:var(--gray-500);margin-bottom:16px}
.faq-item{background:var(--white);border-radius:var(--radius-sm);margin-bottom:12px;box-shadow:0 2px 8px rgba(0,0,0,.04);overflow:hidden;border:1px solid var(--gray-300)}
.faq-question{padding:20px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;font-size:1rem;color:var(--gray-900);transition:background .3s}
.faq-question:hover{background:var(--primary-light)}
.faq-question::after{content:'+';font-size:1.5rem;color:var(--primary);transition:transform .3s;flex-shrink:0;margin-left:16px}
.faq-item.active .faq-question::after{content:'-'}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s ease}
.faq-answer-inner{padding:0 24px 20px;color:var(--gray-700);font-size:.9375rem;line-height:1.8}
.faq-item.active .faq-answer{max-height:500px}
.city-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px}
.city-item{padding:12px 16px;background:var(--white);border-radius:var(--radius-sm);text-align:center;font-size:.875rem;color:var(--gray-700);box-shadow:0 2px 6px rgba(0,0,0,.04);transition:all .2s;cursor:pointer;border:1px solid var(--gray-300)}
.city-item:hover{color:var(--primary);border-color:var(--primary);background:var(--primary-light)}
.cta-section{background:linear-gradient(135deg,var(--primary),#e8432e);padding:80px 0;text-align:center;color:var(--white);position:relative;overflow:hidden}
.cta-section::before{content:'';position:absolute;top:-50%;right:-20%;width:400px;height:400px;background:rgba(255,255,255,.08);border-radius:50%}
.cta-inner{position:relative;z-index:1}
.cta-section h2{font-size:2rem;margin-bottom:16px}
.cta-section p{font-size:1.125rem;opacity:.9;margin-bottom:32px;max-width:600px;margin-left:auto;margin-right:auto}
.cta-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.testimonial-card{background:var(--white);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);position:relative}
.testimonial-card::before{content:'"';position:absolute;top:12px;left:20px;font-size:3rem;color:var(--primary-light);font-family:serif;line-height:1}
.testimonial-text{font-size:.9375rem;color:var(--gray-700);line-height:1.8;margin-bottom:16px;position:relative;z-index:1}
.testimonial-author{display:flex;align-items:center;gap:12px}
.testimonial-avatar{width:44px;height:44px;border-radius:50%;background:var(--primary-light);display:flex;align-items:center;justify-content:center;color:var(--primary);font-weight:700;font-size:.875rem}
.testimonial-info h4{font-size:.875rem;color:var(--gray-900)}
.testimonial-info p{font-size:.75rem;color:var(--gray-500)}
.expert-card{background:var(--white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);text-align:center;transition:all .3s}
.expert-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.expert-avatar{width:80px;height:80px;border-radius:50%;background:linear-gradient(135deg,var(--primary-light),#ffd5cc);margin:24px auto 16px;display:flex;align-items:center;justify-content:center;font-size:2rem;color:var(--primary)}
.expert-card h3{font-size:1.125rem;color:var(--gray-900);margin-bottom:4px}
.expert-card .title{font-size:.8125rem;color:var(--primary);margin-bottom:12px}
.expert-card .desc{font-size:.875rem;color:var(--gray-700);padding:0 20px 20px;line-height:1.7}
.expert-tags{display:flex;justify-content:center;flex-wrap:wrap;gap:6px;padding:0 16px 20px}
.expert-tag{background:var(--gray-100);color:var(--gray-700);font-size:.75rem;padding:4px 10px;border-radius:12px}
.footer{background:var(--dark);color:rgba(255,255,255,.7);padding:60px 0 30px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr 160px;gap:40px;margin-bottom:40px}
.ft-logo{margin-bottom:16px}
.ft-logo img{display:block;height:44px;width:auto}
.ft-qr{text-align:center}
.ft-qr img{display:block;width:120px;height:120px;margin:0 auto 10px;border-radius:10px;background:#fff;padding:5px}
.ft-qr p{font-size:.8125rem;line-height:1.6}
.footer h4{color:var(--white);font-size:1rem;margin-bottom:16px}
.footer p,.footer a{font-size:.875rem;line-height:1.8}
.footer a:hover{color:var(--primary)}
.footer-links li{margin-bottom:8px}
.footer-desc{margin-bottom:16px}
.footer-note{font-size:.8125rem;color:rgba(255,255,255,.5)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:24px;text-align:center;font-size:.8125rem}
.float-cta{position:fixed;bottom:24px;right:24px;z-index:999;display:flex;flex-direction:column;gap:12px}
.float-btn{width:56px;height:56px;border-radius:50%;background:var(--primary);color:var(--white);display:flex;align-items:center;justify-content:center;box-shadow:0 4px 20px rgba(237,81,58,.4);cursor:pointer;transition:all .3s;border:none;font-size:1.2rem}
.float-btn:hover{transform:scale(1.1);box-shadow:0 8px 28px rgba(237,81,58,.5)}
.scroll-top{width:44px;height:44px;border-radius:50%;background:var(--white);color:var(--primary);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow);cursor:pointer;transition:all .3s;border:1px solid var(--gray-300);font-size:1rem;opacity:0;pointer-events:none}
.scroll-top.visible{opacity:1;pointer-events:auto}
.scroll-top:hover{background:var(--primary);color:var(--white)}
.keyword-cloud{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.keyword-tag{padding:8px 18px;background:var(--white);border:1px solid var(--gray-300);border-radius:20px;font-size:.875rem;color:var(--gray-700);transition:all .2s;cursor:pointer}
.keyword-tag:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light)}
.ba-card{background:var(--white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.ba-header{padding:16px 20px;background:var(--primary-light);font-weight:600;color:var(--primary);font-size:.9375rem}
.ba-body{padding:20px}
.ba-body p{font-size:.875rem;color:var(--gray-700);line-height:1.7;margin-bottom:12px}
.ba-result{display:flex;align-items:center;gap:12px;padding:12px;background:var(--gray-100);border-radius:var(--radius-sm);margin-bottom:8px}
.ba-result-icon{width:40px;height:40px;background:var(--primary-light);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:1.1rem;flex-shrink:0}
.ba-result-text{font-size:.875rem;color:var(--gray-700)}
.ba-result-text strong{color:var(--gray-900)}
.age-card{background:var(--white);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);text-align:center;transition:all .3s;border-top:4px solid var(--primary)}
.age-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.age-num{font-size:2.5rem;font-weight:900;color:var(--primary);margin-bottom:8px}
.age-card h3{font-size:1.125rem;color:var(--gray-900);margin-bottom:12px}
.age-card ul{text-align:left;margin-top:16px}
.age-card li{padding:8px 0;font-size:.875rem;color:var(--gray-700);border-bottom:1px solid var(--gray-100);display:flex;align-items:center;gap:8px}
.age-card li::before{content:'';width:6px;height:6px;background:var(--primary);border-radius:50%;flex-shrink:0}
@media(max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .hero-inner{grid-template-columns:1fr;text-align:center}
  .hero-content h1{font-size:2rem}
  .hero-stats{justify-content:center}
  .hero-buttons{justify-content:center}
  .hero-image{max-width:500px;margin:0 auto}
  .footer-grid{grid-template-columns:1fr 1fr}
  .ft-qr{grid-column:1/-1;justify-self:center}
}
@media(max-width:768px){
  .section{padding:56px 0}
  .section-title{font-size:1.5rem}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .nav{display:none}
  .mobile-toggle{display:block}
  .nav.open{display:flex;flex-direction:column;position:absolute;top:72px;left:0;right:0;background:var(--white);padding:20px;box-shadow:var(--shadow);gap:16px}
  .header-cta .btn{display:none}
  .hero{min-height:auto;padding-top:100px;padding-bottom:60px}
  .hero-content h1{font-size:1.75rem}
  .hero-stats{gap:20px}
  .hero-stat-num{font-size:1.5rem}
  .hero-badge{display:none}
  .trust-items{gap:20px}
  .trust-item{font-size:.8125rem}
  .footer-grid{grid-template-columns:repeat(3,1fr);gap:24px 16px}
  .footer-grid>div:first-child{grid-column:1/-1}
  .ft-qr{grid-column:1/-1;justify-self:center}
  .price-table{font-size:.8125rem;display:block;overflow-x:auto}
  .city-grid{grid-template-columns:repeat(3,1fr)}
  .float-cta{bottom:16px;right:16px}
  .float-btn{width:48px;height:48px}
  .cta-section h2{font-size:1.5rem}
}
@media(max-width:480px){
  .container{padding:0 16px}
  .footer p,.footer a{font-size:.8125rem}
  .hero-content h1{font-size:1.5rem}
  .hero-desc{font-size:.9375rem}
  .hero-stats{flex-wrap:wrap;gap:16px}
  .city-grid{grid-template-columns:repeat(2,1fr)}
}
@media(prefers-reduced-motion:no-preference){
  .service-card,.method-card,.knowledge-card,.testimonial-card,.expert-card,.age-card{opacity:0;transform:translateY(20px);transition:opacity .6s,transform .6s}
  .service-card.visible,.method-card.visible,.knowledge-card.visible,.testimonial-card.visible,.expert-card.visible,.age-card.visible{opacity:1;transform:translateY(0)}
}