/* site21 - 香港催情药品 H5 模板 | 配色: #8B5CF6 / #EC4899 / #F59E0B | 布局: 3列瀑布流 */
:root{
  --p:#8B5CF6;--s:#EC4899;--a:#F59E0B;--bg:#0F0A1E;--card:#1A1030;--tx:#F5F3FF;
  --r:16px;--gap:24px;--shadow:0 20px 60px -20px rgba(0,0,0,.4);
}
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;background:var(--bg);color:var(--tx);line-height:1.7;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{width:min(1180px,92%);margin:0 auto}

/* 年龄提示条 */
.age-bar{position:fixed;inset:0;z-index:99999;background:rgba(0,0,0,.92);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:30px;text-align:center;backdrop-filter:blur(10px)}
.age-bar p{max-width:560px;font-size:15px;line-height:2;margin-bottom:28px;color:#fff}
.age-bar button{padding:14px 42px;border:none;border-radius:999px;background:linear-gradient(135deg,var(--p),var(--s));color:#fff;font-size:16px;font-weight:700;cursor:pointer}
.age-bar.hide{opacity:0;pointer-events:none;transition:opacity .3s}

/* 导航 */
.site-header{position:sticky;top:0;z-index:1000;background:#0F0A1Ee6;backdrop-filter:blur(12px);border-bottom:1px solid #8B5CF622}
.header-inner{width:min(1180px,92%);margin:0 auto;display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:10px}
.logo-mark{width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:900;font-size:20px;box-shadow:var(--shadow)}
.logo-mark.sm{width:36px;height:36px;font-size:18px}
.logo-text b{display:block;font-size:17px}
.logo-text small{font-size:10px;letter-spacing:.3em;color:var(--p);opacity:.8}
.main-nav ul{display:flex;gap:6px;list-style:none}
.main-nav a{display:block;padding:8px 14px;border-radius:8px;font-size:14px;transition:all .2s}
.main-nav a:hover{background:#8B5CF61a;color:var(--p)}
.hamburger{display:none;width:40px;height:40px;border:none;background:transparent;cursor:pointer;flex-direction:column;justify-content:center;gap:5px}
.hamburger span{display:block;height:2px;background:var(--tx);border-radius:2px;transition:all .3s}
.hamburger.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.active span:nth-child(2){opacity:0}
.hamburger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 轮播 */
.hero{position:relative;height:100vh;min-height:520px;overflow:hidden}
.carousel{width:100%;height:100%;position:relative}
.slide{position:absolute;inset:0;opacity:0;transition:opacity .8s ease}
.slide.active{opacity:1}
.slide img{width:100%;height:100%;object-fit:cover}
.slide-overlay{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:24px}
.slide-overlay h1,.slide-overlay h2{font-size:clamp(26px,7vw,52px);margin-bottom:16px;text-shadow:0 4px 20px rgba(0,0,0,.5)}
.slide-overlay p{font-size:clamp(14px,3.5vw,18px);margin-bottom:28px;max-width:560px;opacity:.95}
.btn-primary{display:inline-block;padding:13px 36px;border-radius:999px;background:linear-gradient(135deg,var(--p),var(--s));color:#fff;font-weight:700;box-shadow:var(--shadow);transition:transform .2s}
.btn-primary:active{transform:scale(.96)}
.carousel-btn{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;border-radius:50%;border:none;background:rgba(255,255,255,.2);color:#fff;font-size:28px;cursor:pointer;backdrop-filter:blur(6px);z-index:10}
.carousel-btn.prev{left:16px}.carousel-btn.next{right:16px}
.carousel-dots{position:absolute;bottom:28px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:10}
.carousel-dots button{width:10px;height:10px;border-radius:50%;border:none;background:rgba(255,255,255,.5);cursor:pointer;transition:all .3s}
.carousel-dots button.active{background:#fff;width:28px;border-radius:5px}

/* section 通用 */
.section{padding:80px 0}
.section-head{text-align:center;margin-bottom:56px}
.eyebrow{font-size:12px;letter-spacing:.3em;color:var(--p);font-weight:700}
.section-head h2{font-size:clamp(26px,5vw,38px);margin:12px 0}
.divider{width:60px;height:4px;border-radius:2px;margin:16px auto 0}
.section-head .sub{color:#F5F3FFaa;margin-top:16px;font-size:15px}

/* 瀑布流 grid */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.grid .case-tall{grid-row:span 2}

/* 关于我们 */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;margin-bottom:56px}
.about-text .lead{font-size:20px;font-weight:700;margin-bottom:16px;color:var(--p)}
.about-text p{margin-bottom:14px;color:#F5F3FFdd}
.about-img img{border-radius:var(--r);box-shadow:var(--shadow)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat{text-align:center;padding:32px 16px;background:var(--card);border-radius:var(--r);box-shadow:var(--shadow)}
.stat b{font-size:42px;background:linear-gradient(135deg,var(--p),var(--s));-webkit-background-clip:text;background-clip:text;color:transparent;display:inline-block}
.stat span{font-size:24px;color:var(--p);font-weight:700}
.stat p{margin-top:8px;font-size:14px;color:#F5F3FFaa}

/* 服务卡片 */
.service-card{background:var(--card);padding:32px 24px;border-radius:var(--r);text-align:center;box-shadow:var(--shadow);transition:transform .3s}
.service-card:hover{transform:translateY(-6px)}
.svc-icon{width:56px;height:56px;border-radius:16px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:24px;font-weight:900;margin:0 auto 18px}
.service-card h3{margin-bottom:12px;font-size:18px}
.service-card p{font-size:14px;color:#F5F3FFaa}

/* 案例瀑布流 */
.cases-waterfall{align-items:start}
.case-card{background:var(--card);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);break-inside:avoid}
.case-card img{width:100%;aspect-ratio:4/3;object-fit:cover}
.case-card.case-tall img{aspect-ratio:4/5}
.case-body{padding:20px}
.case-body h3{font-size:16px;margin-bottom:10px}
.case-body p{font-size:13px;color:#F5F3FFaa;margin-bottom:12px}
.case-tag{display:inline-block;padding:4px 12px;border-radius:999px;font-size:12px;font-weight:700}

/* 新闻 */
.news-card{background:var(--card);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);transition:transform .3s}
.news-card:hover{transform:translateY(-6px)}
.news-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.news-body{padding:20px}
.news-body time{font-size:12px;color:var(--p)}
.news-body h3{font-size:16px;margin:8px 0;line-height:1.5}
.news-body p{font-size:13px;color:#F5F3FFaa;margin-bottom:12px}
.read-more{font-size:13px;color:var(--p);font-weight:700}

/* FAQ */
.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{background:var(--card);border-radius:var(--r);padding:4px 20px;box-shadow:var(--shadow)}
.faq-item summary{display:flex;justify-content:space-between;align-items:center;padding:18px 0;cursor:pointer;font-weight:700;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{width:28px;height:28px;border-radius:50%;background:#8B5CF622;color:var(--p);display:flex;align-items:center;justify-content:center;font-size:18px;transition:transform .3s}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-item p{padding:0 0 18px;color:#F5F3FFaa;font-size:14px}

/* 联系 */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:48px}
.contact-info{display:flex;flex-direction:column;gap:20px}
.info-item{display:flex;gap:14px;align-items:flex-start}
.info-icon{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;flex:none;font-size:18px}
.info-item b{display:block;font-size:15px}
.info-item p{font-size:13px;color:#F5F3FFaa}
.contact-form{display:flex;flex-direction:column;gap:14px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.contact-form input,.contact-form textarea{width:100%;padding:14px 16px;border:1px solid #F5F3FF22;border-radius:12px;background:var(--card);color:var(--tx);font-size:14px;font-family:inherit}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--p)}
.contact-form textarea{resize:vertical}
.btn-submit{padding:14px;border:none;border-radius:12px;color:#fff;font-size:15px;font-weight:700;cursor:pointer;box-shadow:var(--shadow)}
.btn-submit:active{transform:scale(.98)}
.form-tip{font-size:13px;min-height:20px}
.form-tip.ok{color:#22c55e}
.form-tip.err{color:#ef4444}

/* 友情链接 */
.friend-links{padding:32px 0;background:var(--card)}
.friend-links .container{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.fl-label{font-weight:700;color:var(--p);font-size:14px}
.fl-list{display:flex;flex-wrap:wrap;gap:8px 18px}
.fl-list a{font-size:13px;color:#F5F3FFaa;transition:color .2s}
.fl-list a:hover{color:var(--p)}

/* 页脚 */
.site-footer{background:#000;padding:48px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;margin-bottom:32px}
.footer-brand p{margin-top:8px;font-size:14px}
.footer-brand .muted{color:#666;font-size:12px}
.footer-links h4{margin-bottom:16px;font-size:15px}
.footer-links a{display:block;color:#888;font-size:13px;padding:4px 0;transition:color .2s}
.footer-links a:hover{color:var(--p)}
.footer-bottom{border-top:1px solid #222;padding:20px 0;text-align:center;color:#666;font-size:12px}

/* 入场动画 reveal */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:translateY(0)}
.reveal:nth-child(2){transition-delay:.1s}
.reveal:nth-child(3){transition-delay:.2s}
.reveal:nth-child(4){transition-delay:.3s}

/* 响应式 - 移动优先 */
@media(max-width:900px){
  .main-nav{position:fixed;top:64px;left:0;right:0;background:var(--bg);flex-direction:column;padding:16px;gap:8px;transform:translateY(-120%);transition:transform .3s;border-bottom:1px solid #8B5CF622}
  .main-nav.open{transform:translateY(0)}
  .main-nav ul{flex-direction:column;width:100%}
  .main-nav a{padding:14px}
  .hamburger{display:flex}
  .about-grid,.contact-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .grid{grid-template-columns:repeat(2,1fr)}
  .grid .case-tall{grid-row:auto}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:520px){
  .section{padding:56px 0}
  .hero{min-height:440px}
  .stats{grid-template-columns:repeat(2,1fr);gap:12px}
  .stat{padding:20px 8px}
  .stat b{font-size:30px}
  .grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .carousel-btn{width:36px;height:36px;font-size:22px}
  .footer-grid{grid-template-columns:1fr}
}