/* 全局重置与变量 */
*{margin:0;padding:0;box-sizing:border-box}
:root{--bg:#f8f9fa;--bg2:#ffffff;--text:#1a1a2e;--text2:#4a4a6a;--primary:#e94560;--primary2:#c23152;--accent:#0f3460;--grad1:#1a1a2e;--grad2:#16213e;--card-shadow:0 8px 32px rgba(0,0,0,0.08);--glass:rgba(255,255,255,0.7);--glass-border:rgba(255,255,255,0.3);--radius:16px;--transition:0.3s ease;--font:'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif}
[data-theme="dark"]{--bg:#0f0f1a;--bg2:#1a1a2e;--text:#e0e0e0;--text2:#a0a0b0;--card-shadow:0 8px 32px rgba(0,0,0,0.4);--glass:rgba(26,26,46,0.8);--glass-border:rgba(255,255,255,0.1)}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.7;transition:background var(--transition),color var(--transition);overflow-x:hidden}
a{color:var(--primary);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--primary2)}
img{max-width:100%;height:auto;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
/* 面包屑 */
.breadcrumb{background:var(--glass);backdrop-filter:blur(10px);padding:12px 0;border-bottom:1px solid var(--glass-border);font-size:14px}
.breadcrumb .container{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.breadcrumb a{color:var(--text2)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span{color:var(--text2)}
/* 头部 */
header{position:sticky;top:0;z-index:1000;background:var(--glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--glass-border);transition:background var(--transition)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:12px 0;flex-wrap:wrap;gap:12px}
.logo{display:flex;align-items:center;gap:8px;font-size:24px;font-weight:800;background:linear-gradient(135deg,var(--primary),#ff6b6b);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.logo svg{width:40px;height:40px}
nav{display:flex;gap:6px;flex-wrap:wrap}
nav a{padding:8px 16px;border-radius:30px;color:var(--text);font-weight:500;font-size:15px;transition:all var(--transition);position:relative}
nav a:hover,nav a.active{background:var(--primary);color:#fff}
.nav-actions{display:flex;gap:10px;align-items:center}
.search-box{display:flex;align-items:center;background:var(--bg2);border-radius:30px;padding:4px 12px;border:1px solid var(--glass-border);transition:border var(--transition)}
.search-box input{background:transparent;border:none;outline:none;padding:6px 8px;font-size:14px;color:var(--text);width:120px}
.search-box input::placeholder{color:var(--text2)}
.search-box button{background:transparent;border:none;cursor:pointer;color:var(--text2);font-size:16px;padding:4px}
.dark-toggle,.menu-toggle{background:transparent;border:none;cursor:pointer;font-size:22px;color:var(--text);padding:6px 10px;border-radius:30px;transition:background var(--transition)}
.dark-toggle:hover,.menu-toggle:hover{background:var(--glass)}
.menu-toggle{display:none}
/* 移动菜单 */
@media(max-width:768px){
    .menu-toggle{display:block}
    nav{display:none;width:100%;flex-direction:column;background:var(--bg2);border-radius:var(--radius);padding:12px;box-shadow:var(--card-shadow);margin-top:8px}
    nav.open{display:flex}
    .search-box input{width:80px}
    .header-inner{position:relative}
}
/* 按钮 */
.btn{display:inline-block;padding:12px 28px;border-radius:30px;font-weight:600;font-size:16px;border:none;cursor:pointer;transition:all var(--transition);background:var(--primary);color:#fff;text-align:center}
.btn:hover{background:var(--primary2);transform:translateY(-2px);box-shadow:0 8px 24px rgba(233,69,96,0.3)}
.btn-outline{background:transparent;border:2px solid var(--primary);color:var(--primary)}
.btn-outline:hover{background:var(--primary);color:#fff}
/* Hero */
.hero{position:relative;padding:80px 0 60px;background:linear-gradient(135deg,var(--grad1),var(--grad2));overflow:hidden;min-height:70vh;display:flex;align-items:center}
.hero::before{content:'';position:absolute;inset:0;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 800 800'%3E%3Ccircle cx='200' cy='200' r='180' fill='%23e94560' opacity='0.08'/%3E%3Ccircle cx='600' cy='500' r='250' fill='%230f3460' opacity='0.06'/%3E%3C/svg%3E") no-repeat center;background-size:cover}
.hero .container{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.hero-text{flex:1;min-width:280px}
.hero-text h1{font-size:clamp(2rem,5vw,3.2rem);color:#fff;line-height:1.2;margin-bottom:20px}
.hero-text h1 span{background:linear-gradient(135deg,var(--primary),#ff6b6b);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-text p{color:rgba(255,255,255,0.85);font-size:18px;margin-bottom:30px;max-width:600px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-visual{flex:1;min-width:280px;display:flex;justify-content:center}
.hero-visual svg{width:100%;max-width:500px;border-radius:var(--radius);box-shadow:0 20px 60px rgba(0,0,0,0.3)}
/* 轮播指示器 */
.hero-indicators{display:flex;gap:10px;justify-content:center;margin-top:30px}
.hero-indicators span{width:12px;height:12px;border-radius:50%;background:rgba(255,255,255,0.3);cursor:pointer;transition:all var(--transition)}
.hero-indicators span.active{background:var(--primary);transform:scale(1.2)}
/* 通用section */
section{padding:70px 0}
.section-title{font-size:clamp(1.6rem,3vw,2.2rem);font-weight:700;margin-bottom:12px;text-align:center}
.section-sub{text-align:center;color:var(--text2);margin-bottom:40px;font-size:16px;max-width:700px;margin-left:auto;margin-right:auto}
/* 卡片网格 */
.grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}
.card{background:var(--bg2);border-radius:var(--radius);padding:28px 24px;box-shadow:var(--card-shadow);transition:all var(--transition);border:1px solid transparent;position:relative;overflow:hidden}
.card:hover{transform:translateY(-6px);box-shadow:0 16px 48px rgba(0,0,0,0.12);border-color:var(--primary)}
.card-icon{font-size:40px;margin-bottom:16px;display:inline-block}
.card h3{font-size:20px;margin-bottom:10px}
.card p{color:var(--text2);font-size:15px}
/* 毛玻璃 */
.glass-card{background:var(--glass);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--glass-border);border-radius:var(--radius);padding:28px 24px;transition:all var(--transition)}
.glass-card:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(0,0,0,0.1)}
/* 团队 */
.team-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:24px}
.team-card{text-align:center;padding:24px;background:var(--bg2);border-radius:var(--radius);box-shadow:var(--card-shadow);transition:all var(--transition)}
.team-card:hover{transform:translateY(-6px)}
.team-card svg{border-radius:50%;margin:0 auto 16px;width:100px;height:100px;object-fit:cover}
.team-card h4{font-size:18px;margin-bottom:4px}
.team-card p{color:var(--text2);font-size:14px}
/* 评价 */
.testimonial-card{background:var(--bg2);border-radius:var(--radius);padding:28px 24px;box-shadow:var(--card-shadow);position:relative}
.testimonial-card::before{content:'"';font-size:60px;color:var(--primary);opacity:0.2;position:absolute;top:10px;left:20px;font-family:serif}
.testimonial-card p{font-style:italic;margin-bottom:16px;color:var(--text2)}
.testimonial-author{display:flex;align-items:center;gap:12px}
.testimonial-author svg{width:48px;height:48px;border-radius:50%}
/* 文章 */
.article-card{background:var(--bg2);border-radius:var(--radius);overflow:hidden;box-shadow:var(--card-shadow);transition:all var(--transition)}
.article-card:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(0,0,0,0.1)}
.article-card .card-body{padding:20px 24px 24px}
.article-card .card-body .date{font-size:13px;color:var(--text2);margin-bottom:6px}
.article-card .card-body h3{font-size:18px;margin-bottom:8px}
.article-card .card-body p{color:var(--text2);font-size:14px;margin-bottom:12px}
/* FAQ */
.faq-item{border-bottom:1px solid var(--glass-border);padding:16px 0;cursor:pointer}
.faq-question{display:flex;justify-content:space-between;align-items:center;font-weight:600;font-size:17px;padding:8px 0}
.faq-question span{transition:transform 0.3s}
.faq-answer{max-height:0;overflow:hidden;transition:max-height 0.4s ease, padding 0.3s;padding:0 12px;color:var(--text2);font-size:15px;line-height:1.8}
.faq-item.open .faq-answer{max-height:500px;padding:12px 12px 4px}
.faq-item.open .faq-question span{transform:rotate(45deg)}
/* HowTo */
.howto-steps{counter-reset:step;display:grid;gap:24px}
.howto-step{background:var(--bg2);border-radius:var(--radius);padding:24px 28px;box-shadow:var(--card-shadow);position:relative;padding-left:70px}
.howto-step::before{counter-increment:step;content:counter(step);position:absolute;left:20px;top:24px;width:36px;height:36px;background:var(--primary);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:18px}
.howto-step h4{font-size:18px;margin-bottom:6px}
.howto-step p{color:var(--text2);font-size:15px}
/* 友情链接 */
.friend-links{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;padding:20px 0}
.friend-links a{color:var(--text2);font-size:14px;padding:4px 12px;border-radius:20px;background:var(--glass);transition:all var(--transition)}
.friend-links a:hover{background:var(--primary);color:#fff}
/* 底部 */
footer{background:var(--grad1);color:rgba(255,255,255,0.85);padding:50px 0 20px}
footer .container{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:30px}
footer h4{color:#fff;margin-bottom:16px;font-size:18px}
footer p,footer a{color:rgba(255,255,255,0.7);font-size:14px;line-height:2}
footer a:hover{color:var(--primary)}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.1);margin-top:30px;padding-top:20px;text-align:center;font-size:13px;color:rgba(255,255,255,0.5)}
.footer-bottom .icp{color:rgba(255,255,255,0.6)}
/* 返回顶部 */
#backTop{position:fixed;bottom:30px;right:30px;width:50px;height:50px;border-radius:50%;background:var(--primary);color:#fff;border:none;font-size:24px;cursor:pointer;box-shadow:0 4px 20px rgba(233,69,96,0.4);display:flex;align-items:center;justify-content:center;transition:all var(--transition);z-index:999;opacity:0;visibility:hidden;transform:translateY(20px)}
#backTop.show{opacity:1;visibility:visible;transform:translateY(0)}
#backTop:hover{background:var(--primary2);transform:translateY(-4px)}
/* 动画类 */
.fade-up{opacity:0;transform:translateY(30px);transition:opacity 0.6s ease,transform 0.6s ease}
.fade-up.show{opacity:1;transform:translateY(0)}
.count-up{font-size:2.4rem;font-weight:700;color:var(--primary);display:inline-block}
/* 轮播 */
.carousel{overflow:hidden;position:relative;border-radius:var(--radius)}
.carousel-track{display:flex;transition:transform 0.5s ease}
.carousel-item{min-width:100%;padding:0 4px}
/* 响应式 */
@media(max-width:768px){
    .hero{padding:50px 0 40px;min-height:auto}
    .hero-actions .btn{width:100%}
    section{padding:50px 0}
    .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
    footer .container{grid-template-columns:1fr}
}
/* SVG占位图通用样式 */
.svg-placeholder{background:linear-gradient(135deg,var(--grad1),var(--grad2));border-radius:var(--radius);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-size:14px;text-align:center;padding:20px;min-height:180px;width:100%}
.svg-placeholder svg{width:100%;height:auto;max-height:300px}