/* ===== 全局 梦幻气泡玻璃风 ===== */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"Nunito","PingFang SC","Microsoft YaHei",sans-serif;
  background:linear-gradient(135deg,#fce7f3 0%,#ede9fe 50%,#dbeafe 100%);
  background-attachment:fixed;
  color:#1e1b4b;line-height:1.7;
  overflow-x:hidden;position:relative;min-height:100vh;
}
a{text-decoration:none;color:inherit}
ul{list-style:none}
img{max-width:100%;display:block}

/* 漂浮气泡背景 */
.bubbles-bg{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.bubble{position:absolute;border-radius:50%;background:radial-gradient(circle at 30% 30%,rgba(255,255,255,0.8),rgba(255,255,255,0.1));border:1px solid rgba(255,255,255,0.3);animation:bubbleFloat linear infinite}
.b1{width:80px;height:80px;left:10%;bottom:-100px;animation-duration:20s}
.b2{width:50px;height:50px;left:25%;bottom:-80px;animation-duration:15s;animation-delay:2s}
.b3{width:100px;height:100px;left:45%;bottom:-120px;animation-duration:25s;animation-delay:4s}
.b4{width:60px;height:60px;left:65%;bottom:-90px;animation-duration:18s;animation-delay:1s}
.b5{width:90px;height:90px;left:80%;bottom:-110px;animation-duration:22s;animation-delay:3s}
.b6{width:40px;height:40px;left:15%;bottom:-70px;animation-duration:12s;animation-delay:5s}
.b7{width:70px;height:70px;left:55%;bottom:-100px;animation-duration:19s;animation-delay:6s}
.b8{width:55px;height:55px;left:90%;bottom:-85px;animation-duration:16s;animation-delay:7s}
@keyframes bubbleFloat{0%{transform:translateY(0) rotate(0deg);opacity:0}10%{opacity:0.6}90%{opacity:0.6}100%{transform:translateY(-110vh) rotate(360deg);opacity:0}}

/* ===== 导航栏 ===== */
.navbar{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  padding:14px 0;transition:all .3s;
  background:rgba(255,255,255,0.6);backdrop-filter:blur(20px);
  border-bottom:1px solid rgba(255,255,255,0.3);
}
.navbar.scrolled{background:rgba(255,255,255,0.85);box-shadow:0 4px 30px rgba(236,72,153,0.1)}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between}
.nav-brand{display:flex;align-items:center;gap:10px}
.nav-logo{width:38px;height:38px;border-radius:10px;box-shadow:0 3px 10px rgba(236,72,153,0.2)}
.nav-name{font-size:20px;font-weight:800;background:linear-gradient(135deg,#ec4899,#8b5cf6);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.nav-links{display:flex;gap:4px}
.nav-links a{font-size:14px;color:#64748b;padding:8px 16px;border-radius:12px;transition:all .3s;font-weight:600}
.nav-links a:hover{color:#ec4899;background:rgba(236,72,153,0.1)}
.nav-cta{
  padding:10px 24px;background:linear-gradient(135deg,#ec4899,#8b5cf6);
  color:#fff;border-radius:14px;font-size:14px;font-weight:700;
  box-shadow:0 4px 15px rgba(236,72,153,0.3);transition:all .3s;
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(236,72,153,0.4)}
.nav-toggle{display:none;flex-direction:column;gap:4px;background:none;border:none;cursor:pointer;padding:6px}
.nav-toggle span{width:22px;height:3px;background:#ec4899;border-radius:3px}

/* ===== Hero首屏 ===== */
.hero{min-height:100vh;display:flex;align-items:center;position:relative;padding:100px 0 60px;z-index:1}
.hero-inner{max-width:1200px;margin:0 auto;padding:0 24px;display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center;width:100%}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:8px 16px;
  background:rgba(255,255,255,0.7);backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,0.5);border-radius:20px;
  font-size:12px;color:#ec4899;font-weight:600;margin-bottom:24px;
  box-shadow:0 4px 15px rgba(236,72,153,0.1);
}
.badge-dot{width:6px;height:6px;border-radius:50%;background:#10b981;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:0.4}}
.hero-title{font-size:44px;font-weight:900;color:#1e1b4b;line-height:1.25;margin-bottom:20px}
.title-gradient{background:linear-gradient(135deg,#ec4899 0%,#8b5cf6 50%,#3b82f6 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.hero-desc{font-size:16px;color:#64748b;margin-bottom:32px;max-width:480px;line-height:1.8}
.hero-actions{display:flex;gap:14px;margin-bottom:36px;flex-wrap:wrap}
.btn-primary{
  display:inline-flex;align-items:center;gap:8px;padding:14px 32px;
  background:linear-gradient(135deg,#ec4899,#8b5cf6);color:#fff;
  border-radius:16px;font-size:16px;font-weight:700;
  box-shadow:0 6px 20px rgba(236,72,153,0.35);transition:all .3s;
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 10px 30px rgba(236,72,153,0.45)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;padding:14px 32px;
  background:rgba(255,255,255,0.6);backdrop-filter:blur(10px);
  color:#1e1b4b;border:2px solid rgba(255,255,255,0.8);
  border-radius:16px;font-size:16px;font-weight:600;transition:all .3s;
}
.btn-ghost:hover{background:rgba(255,255,255,0.8);border-color:#ec4899;color:#ec4899}
.hero-stats{display:flex;gap:28px}
.stat{display:flex;flex-direction:column}
.stat strong{font-size:26px;font-weight:900;background:linear-gradient(135deg,#ec4899,#8b5cf6);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.stat span{font-size:13px;color:#94a3b8}

/* Hero手机 */
.hero-phone{display:flex;justify-content:center;align-items:center;position:relative;min-height:500px}
.phone-wrap{position:relative;animation:phoneFloat 5s ease-in-out infinite}
@keyframes phoneFloat{0%,100%{transform:translateY(0) rotate(-2deg)}50%{transform:translateY(-12px) rotate(2deg)}}
.phone-frame{
  width:260px;height:520px;background:#fff;border-radius:36px;
  border:4px solid rgba(255,255,255,0.8);overflow:hidden;position:relative;
  box-shadow:0 25px 60px rgba(236,72,153,0.2);
}
.phone-notch{position:absolute;top:0;left:50%;transform:translateX(-50%);width:100px;height:24px;background:#fff;border-radius:0 0 16px 16px;z-index:2}
.phone-screen{width:100%;height:100%;object-fit:cover;object-position:top}
.phone-glow{position:absolute;inset:-20px;border-radius:46px;background:linear-gradient(135deg,rgba(236,72,153,0.2),rgba(139,92,246,0.15));filter:blur(30px);z-index:-1}
.float-bubble{
  position:absolute;padding:10px 16px;background:rgba(255,255,255,0.85);
  backdrop-filter:blur(10px);border-radius:20px;border:1px solid rgba(255,255,255,0.6);
  display:flex;align-items:center;gap:8px;
  box-shadow:0 8px 25px rgba(236,72,153,0.15);
  animation:bubbleCard 4s ease-in-out infinite;
}
.fb-1{top:80px;left:-20px}
.fb-2{bottom:100px;right:-10px;animation-delay:1s}
@keyframes bubbleCard{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
.fb-emoji{font-size:18px}
.fb-text{font-size:12px;color:#64748b;font-weight:600}

/* ===== 通用区块 ===== */
section{padding:90px 0;position:relative;z-index:1}
.section-head{text-align:center;margin-bottom:50px;padding:0 24px}
.section-tag{display:inline-block;font-size:12px;letter-spacing:2px;color:#ec4899;font-weight:700;margin-bottom:12px;background:rgba(255,255,255,0.7);padding:5px 14px;border-radius:10px;backdrop-filter:blur(10px)}
.section-title{font-size:36px;font-weight:900;color:#1e1b4b;margin-bottom:10px}
.section-title.left{text-align:left}
.section-desc{font-size:15px;color:#94a3b8}
.section-desc.left{text-align:left}

/* ===== 对话体验 ===== */
.chat-demo{max-width:1100px;margin:0 auto;padding:0 24px;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.chat-phone{
  background:rgba(255,255,255,0.7);backdrop-filter:blur(20px);
  border-radius:24px;border:1px solid rgba(255,255,255,0.6);
  padding:20px;box-shadow:0 20px 50px rgba(236,72,153,0.12);
}
.chat-header{display:flex;align-items:center;gap:12px;padding-bottom:14px;border-bottom:1px solid #f1f5f9;margin-bottom:16px}
.chat-avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#ec4899,#8b5cf6)}
.chat-info{display:flex;flex-direction:column}
.chat-name{font-size:15px;font-weight:700;color:#1e1b4b}
.chat-status{font-size:11px;color:#10b981}
.chat-messages{display:flex;flex-direction:column;gap:10px;margin-bottom:16px;min-height:280px}
.msg{max-width:75%;padding:10px 14px;border-radius:16px;font-size:13px;line-height:1.6}
.msg-ai{background:#f1f5f9;color:#334155;align-self:flex-start;border-bottom-left-radius:4px}
.msg-user{background:linear-gradient(135deg,#ec4899,#8b5cf6);color:#fff;align-self:flex-end;border-bottom-right-radius:4px}
.msg.typing{display:flex;gap:4px;align-items:center;padding:12px 16px}
.msg.typing span{width:6px;height:6px;border-radius:50%;background:#94a3b8;animation:typing 1.4s infinite}
.msg.typing span:nth-child(2){animation-delay:0.2s}
.msg.typing span:nth-child(3){animation-delay:0.4s}
@keyframes typing{0%,60%,100%{transform:translateY(0);opacity:0.4}30%{transform:translateY(-6px);opacity:1}}
.chat-input{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;background:#f8fafc;border-radius:14px}
.input-placeholder{font-size:13px;color:#94a3b8}
.input-icons{display:flex;gap:10px;font-size:16px}
.chat-features{display:flex;flex-direction:column;gap:16px}
.cf-item{
  display:flex;gap:14px;padding:18px;background:rgba(255,255,255,0.6);
  backdrop-filter:blur(10px);border-radius:16px;border:1px solid rgba(255,255,255,0.5);
  transition:all .3s;
}
.cf-item:hover{transform:translateX(6px);box-shadow:0 10px 30px rgba(236,72,153,0.1)}
.cf-icon{width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,#fce7f3,#ede9fe);display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0}
.cf-item h4{font-size:15px;font-weight:700;color:#1e1b4b;margin-bottom:4px}
.cf-item p{font-size:12px;color:#94a3b8;line-height:1.6}

/* ===== 核心能力 ===== */
.features-grid{max-width:1100px;margin:0 auto;padding:0 24px;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feature-card{
  padding:28px 22px;background:rgba(255,255,255,0.65);backdrop-filter:blur(15px);
  border-radius:20px;border:1px solid rgba(255,255,255,0.6);
  transition:all .4s;box-shadow:0 8px 30px rgba(236,72,153,0.08);
}
.feature-card:hover{transform:translateY(-8px);box-shadow:0 20px 50px rgba(236,72,153,0.15);border-color:rgba(236,72,153,0.3)}
.feature-icon{font-size:36px;margin-bottom:14px}
.feature-card h3{font-size:17px;font-weight:700;color:#1e1b4b;margin-bottom:10px}
.feature-card p{font-size:13px;color:#64748b;line-height:1.7}

/* ===== 角色列表 ===== */
.characters{background:rgba(255,255,255,0.3)}
.char-inner{max-width:1100px;margin:0 auto;padding:0 24px;display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.char-tags{display:flex;gap:10px;flex-wrap:wrap;margin:24px 0}
.char-tag{font-size:13px;padding:8px 16px;background:rgba(255,255,255,0.7);backdrop-filter:blur(10px);border-radius:14px;color:#64748b;font-weight:500;border:1px solid rgba(255,255,255,0.5)}
.char-btn{margin-top:8px}
.char-visual{display:flex;justify-content:center}
.char-phone{position:relative;animation:phoneFloat 6s ease-in-out infinite}
.char-phone-frame{
  width:280px;height:560px;background:#fff;border-radius:36px;
  border:4px solid rgba(255,255,255,0.8);overflow:hidden;
  box-shadow:0 25px 60px rgba(139,92,246,0.2);
}
.char-screen{width:100%;height:100%;object-fit:cover;object-position:top}

/* ===== 模型支持 ===== */
.models-showcase{max-width:1100px;margin:0 auto;padding:0 24px;display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.models-phone{display:flex;justify-content:center}
.models-phone-frame{
  width:280px;height:560px;background:#fff;border-radius:36px;
  border:4px solid rgba(255,255,255,0.8);overflow:hidden;
  box-shadow:0 25px 60px rgba(59,130,246,0.2);
}
.models-screen{width:100%;height:100%;object-fit:cover;object-position:top}
.models-list{display:flex;flex-direction:column;gap:16px}
.model-item{display:flex;gap:14px;align-items:flex-start;padding:18px;background:rgba(255,255,255,0.6);backdrop-filter:blur(10px);border-radius:16px;border:1px solid rgba(255,255,255,0.5);transition:all .3s}
.model-item:hover{transform:translateX(6px)}
.model-dot{width:12px;height:12px;border-radius:50%;margin-top:6px;flex-shrink:0}
.md1{background:#ec4899;box-shadow:0 0 10px rgba(236,72,153,0.5)}
.md2{background:#8b5cf6;box-shadow:0 0 10px rgba(139,92,246,0.5)}
.md3{background:#3b82f6;box-shadow:0 0 10px rgba(59,130,246,0.5)}
.md4{background:#10b981;box-shadow:0 0 10px rgba(16,185,129,0.5)}
.model-item h4{font-size:15px;font-weight:700;color:#1e1b4b;margin-bottom:4px}
.model-item p{font-size:12px;color:#94a3b8}

/* ===== 用户评价 ===== */
.reviews-grid{max-width:1100px;margin:0 auto;padding:0 24px;display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.review-card{padding:28px 24px;background:rgba(255,255,255,0.7);backdrop-filter:blur(15px);border-radius:20px;border:1px solid rgba(255,255,255,0.6);transition:all .4s;box-shadow:0 8px 30px rgba(236,72,153,0.08)}
.review-card:hover{transform:translateY(-6px);box-shadow:0 20px 50px rgba(236,72,153,0.15)}
.review-stars{color:#fbbf24;font-size:16px;letter-spacing:2px;margin-bottom:14px}
.review-text{font-size:14px;color:#475569;line-height:1.8;margin-bottom:20px;font-style:italic}
.review-user{display:flex;align-items:center;gap:12px}
.ru-avatar{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;color:#fff}
.ru1{background:linear-gradient(135deg,#ec4899,#8b5cf6)}
.ru2{background:linear-gradient(135deg,#8b5cf6,#3b82f6)}
.ru3{background:linear-gradient(135deg,#3b82f6,#10b981)}
.review-user strong{display:block;font-size:14px;color:#1e1b4b}
.review-user span{font-size:12px;color:#94a3b8}

/* ===== 下载CTA ===== */
.cta{padding:60px 24px}
.cta-card{max-width:700px;margin:0 auto;position:relative;border-radius:28px;overflow:hidden;background:rgba(255,255,255,0.8);backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,0.6);box-shadow:0 25px 60px rgba(236,72,153,0.15)}
.cta-bubbles{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.cta-bubble{position:absolute;border-radius:50%;background:radial-gradient(circle at 30% 30%,rgba(236,72,153,0.2),rgba(139,92,246,0.1));animation:ctaBubble 8s ease-in-out infinite}
.cb1{width:120px;height:120px;top:-40px;right:-40px}
.cb2{width:80px;height:80px;bottom:-20px;left:20%;animation-delay:2s}
.cb3{width:60px;height:60px;top:30%;left:-20px;animation-delay:4s}
@keyframes ctaBubble{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(20px,-20px) scale(1.1)}}
.cta-content{position:relative;z-index:1;padding:50px 40px;text-align:center}
.cta-logo{width:64px;height:64px;border-radius:16px;margin:0 auto 18px;box-shadow:0 8px 25px rgba(236,72,153,0.3)}
.cta-title{font-size:28px;font-weight:900;color:#1e1b4b;margin-bottom:10px}
.cta-desc{font-size:15px;color:#64748b;margin-bottom:28px}
.cta-btn{
  display:inline-flex;align-items:center;gap:8px;padding:16px 44px;
  background:linear-gradient(135deg,#ec4899,#8b5cf6);color:#fff;
  border-radius:18px;font-size:18px;font-weight:700;
  box-shadow:0 8px 25px rgba(236,72,153,0.4);transition:all .3s;
}
.cta-btn:hover{transform:translateY(-3px) scale(1.02);box-shadow:0 12px 35px rgba(236,72,153,0.5)}
.cta-meta{display:flex;gap:24px;justify-content:center;margin-top:22px;font-size:13px;color:#94a3b8;flex-wrap:wrap}
.cta-site{margin-top:14px;font-size:13px;color:#ec4899;font-weight:600}

/* ===== 页脚 ===== */
.footer{background:rgba(30,27,75,0.95);padding:50px 0 0;color:#94a3b8;position:relative;z-index:1}
.footer-inner{max-width:1200px;margin:0 auto;padding:0 24px 36px;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:36px}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-logo img{width:34px;height:34px;border-radius:8px}
.footer-logo span{font-size:17px;font-weight:800;color:#fff}
.footer-brand p{font-size:13px;line-height:1.8;margin-bottom:4px;color:#64748b}
.footer-url{color:#ec4899 !important;font-weight:600}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-col li{margin-bottom:8px}
.footer-col a{font-size:13px;color:#64748b;transition:color .3s}
.footer-col a:hover{color:#ec4899}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.08);padding:18px 24px;text-align:center}
.footer-bottom p{font-size:12px;color:#475569;line-height:1.8}

/* ===== 响应式 ===== */
@media(max-width:1024px){
  .hero-inner{grid-template-columns:1fr;text-align:center}
  .hero-text{order:2}
  .hero-phone{order:1;min-height:400px}
  .hero-desc,.hero-stats{margin-left:auto;margin-right:auto}
  .hero-actions{justify-content:center}
  .chat-demo{grid-template-columns:1fr}
  .features-grid{grid-template-columns:repeat(2,1fr)}
  .char-inner{grid-template-columns:1fr;gap:30px}
  .section-title.left,.section-desc.left{text-align:center}
  .char-tags{justify-content:center}
  .models-showcase{grid-template-columns:1fr;gap:30px}
  .reviews-grid{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr 1fr}
  .nav-links{display:none}
}
@media(max-width:640px){
  .nav-cta{display:none}
  .nav-toggle{display:flex}
  .nav-links.active{display:flex;position:absolute;top:100%;left:0;right:0;flex-direction:column;background:rgba(255,255,255,0.95);padding:16px 24px;gap:4px;border-bottom:1px solid rgba(236,72,153,0.2)}
  .hero-title{font-size:34px}
  .section-title{font-size:28px}
  .features-grid{grid-template-columns:1fr}
  .phone-frame{width:220px;height:440px}
  .char-phone-frame,.models-phone-frame{width:240px;height:480px}
  .float-bubble{display:none}
  .cta-meta{flex-direction:column;gap:6px}
  .footer-inner{grid-template-columns:1fr}
}