/* Little Hero - 企业官网样式 · 温暖·时尚·科技·童趣 */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;600;700;800&display=swap');

:root {
  --blue:#0099FF; --blue-warm:#1A8CFF; --blue-dark:#0077CC; --blue-bg:#F0F8FF; --blue-light:#E6F4FF;
  --orange:#FF6D00; --orange-light:#FFF0E0; --orange-soft:#FF9A3C;
  --pink-soft:#FFE8EC;
  --black:#000; --white:#FFF;
  --g9:#1A1A2E; --g8:#2D3748; --g7:#4A5568; --g6:#64748B; --g5:#94A3B8;
  --g4:#CBD5E1; --g3:#E2E8F0; --g2:#EDF2F7; --g1:#F7FAFC;
  --font-en:'Montserrat',sans-serif; --font-zh:'Source Han Sans CN','Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --radius-btn:14px; --radius-card:20px; --radius-input:14px; --radius-badge:50px;
  --shadow-card:0 4px 20px rgba(0,0,0,.04); --shadow-hover:0 12px 40px rgba(0,0,0,.08);
  --shadow-btn:0 6px 20px rgba(0,153,255,.25);
  --max-w:1200px; --nav-h:72px; --t-fast:.25s cubic-bezier(.4,0,.2,1); --t-base:.35s cubic-bezier(.4,0,.2,1); --t-slow:.5s cubic-bezier(.4,0,.2,1); --t-bounce:.4s cubic-bezier(.34,1.56,.64,1);
  --z-nav:20;
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;font-size:16px}
body{font-family:var(--font-zh);font-size:18px;line-height:1.6;color:var(--g8);background:var(--white);overflow-x:hidden}
h1,h2,h3{font-family:var(--font-en);color:var(--g9);line-height:1.2}
h1{font-size:clamp(2.4rem,5vw,3.75rem);font-weight:800}
h2{font-size:clamp(1.8rem,3vw,2.25rem);font-weight:700}
h3{font-size:clamp(1.4rem,2vw,2rem);font-weight:600}
p{font-family:var(--font-zh);color:var(--g7);margin-bottom:16px;line-height:1.8}
a{color:var(--blue);text-decoration:none;transition:color var(--t-fast)} a:hover{color:var(--blue-dark)}
img{max-width:100%;display:block}
.container{max-width:var(--max-w);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-header{text-align:center;margin-bottom:64px}
.section-header .label{display:inline-block;font-family:var(--font-en);font-size:.875rem;font-weight:600;color:var(--blue);text-transform:uppercase;letter-spacing:2px;margin-bottom:8px}
.section-header h2{margin-bottom:16px}
.section-header .desc{font-size:1.125rem;color:var(--g6);max-width:640px;margin:0 auto}
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-en);font-size:1rem;font-weight:600;padding:14px 32px;border-radius:var(--radius-btn);border:none;cursor:pointer;transition:all var(--t-bounce);text-decoration:none;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,var(--blue) 0%,var(--blue-warm) 100%);color:var(--white);box-shadow:var(--shadow-btn)}
.btn-primary:hover{background:linear-gradient(135deg,var(--blue-dark) 0%,var(--blue) 100%);transform:translateY(-3px) scale(1.03);box-shadow:0 10px 30px rgba(0,153,255,.35);color:var(--white)}
.btn-secondary{background:transparent;color:var(--blue);border:2px solid var(--blue);border-radius:var(--radius-btn)}
.btn-secondary:hover{background:var(--blue);color:var(--white);transform:translateY(-3px) scale(1.03)}
.btn-lg{padding:18px 40px;font-size:1.125rem;border-radius:16px}

/* ====== 全局装饰元素 ====== */
/* 温暖浮动圆点 - body 全局 */
body::before{content:'';position:fixed;width:500px;height:500px;border-radius:50%;background:radial-gradient(circle,rgba(255,109,0,.04) 0%,transparent 70%);top:-100px;right:-100px;z-index:-1;pointer-events:none;animation:warmFloat 15s ease-in-out infinite}
body::after{content:'';position:fixed;width:400px;height:400px;border-radius:50%;background:radial-gradient(circle,rgba(255,109,0,.03) 0%,transparent 70%);bottom:-80px;left:-80px;z-index:-1;pointer-events:none;animation:warmFloat 18s ease-in-out infinite reverse}
@keyframes warmFloat{0%,100%{transform:translate(0,0) scale(1)}33%{transform:translate(30px,-30px) scale(1.1)}66%{transform:translate(-20px,20px) scale(.95)}}

/* 波浪分隔装饰 */
.wave-divider{position:relative;height:60px;overflow:hidden;pointer-events:none}
.wave-divider::before{content:'';position:absolute;bottom:0;left:0;right:0;height:40px;background:repeating-linear-gradient(180deg,transparent,transparent 8px,rgba(0,153,255,.04) 8px,rgba(0,153,255,.04) 16px);border-radius:50% 50% 0 0/100% 100% 0 0}

/* Nav */
.nav{position:fixed;top:0;left:0;right:0;z-index:var(--z-nav);height:var(--nav-h);background:rgba(255,255,255,.88);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);border-bottom:1px solid transparent;transition:all var(--t-base)}
.nav.scrolled{border-bottom-color:var(--g3);box-shadow:0 2px 20px rgba(0,0,0,.04)}
.nav .container{display:flex;align-items:center;justify-content:space-between;height:100%}
.nav-logo{display:flex;align-items:center;gap:8px;text-decoration:none;transition:transform var(--t-bounce)}
.nav-logo:hover{transform:scale(1.04)}
.nav-logo-img{height:56px;width:auto;object-fit:contain}
.nav-logo .li{width:40px;height:40px}
.nav-logo .lt{display:flex;flex-direction:column;line-height:1.1}
.nav-logo .be{font-family:var(--font-en);font-size:1.125rem;font-weight:800;color:var(--blue)}
.nav-logo .bz{font-size:.75rem;color:var(--g6);font-weight:500;letter-spacing:.1em}
.nav-links{display:flex;align-items:center;gap:32px;list-style:none}
.nav-links a{font-family:var(--font-en);font-size:.9375rem;font-weight:500;color:var(--g7);padding:8px 0;position:relative;transition:color var(--t-fast)}
.nav-links a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:3px;background:linear-gradient(90deg,var(--blue),var(--orange-soft));border-radius:2px;transition:width var(--t-base)}
.nav-links a:hover,.nav-links a.active{color:var(--blue)}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.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:2.5px;background:var(--g8);border-radius:2px;transition:all var(--t-base)}
.nav-toggle.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}
.nav-cta{margin-left:24px}

/* ====== Hero - 温暖渐变 ====== */
.hero{min-height:100vh;display:flex;align-items:center;position:relative;overflow:hidden;background:linear-gradient(180deg,#FFF8F5 0%,#E8F4FF 35%,var(--white) 100%);padding-top:var(--nav-h)}
.hero-bg{position:absolute;inset:0;z-index:0;pointer-events:none}
.hero-bg .c1{position:absolute;width:600px;height:600px;border-radius:50%;background:radial-gradient(circle,rgba(0,153,255,.06),transparent 70%);top:-100px;right:-100px;animation:floatBubble 16s ease-in-out infinite}
.hero-bg .c2{position:absolute;width:300px;height:300px;border-radius:50%;background:radial-gradient(circle,rgba(255,109,0,.08),transparent 70%);bottom:10%;left:-60px;animation:floatBubble 20s ease-in-out infinite reverse}
.hero-bg .c3{position:absolute;width:150px;height:150px;border-radius:50%;background:radial-gradient(circle,rgba(0,153,255,.05),transparent 70%);top:50%;left:60%;animation:floatBubble 12s ease-in-out infinite}
/* 童趣装饰小圆点 */
.hero-bg .dot1,.hero-bg .dot2,.hero-bg .dot3,.hero-bg .dot4,.hero-bg .dot5{position:absolute;width:12px;height:12px;border-radius:50%}
.hero-bg .dot1{background:rgba(255,154,60,.15);top:20%;left:15%;animation:bounceDot 3s ease-in-out infinite}
.hero-bg .dot2{background:rgba(0,153,255,.12);top:65%;left:75%;animation:bounceDot 3.5s ease-in-out .5s infinite}
.hero-bg .dot3{background:rgba(255,109,0,.1);top:30%;left:80%;animation:bounceDot 4s ease-in-out 1s infinite}
.hero-bg .dot4{background:rgba(0,153,255,.1);top:75%;left:25%;animation:bounceDot 3.2s ease-in-out .8s infinite}
.hero-bg .dot5{background:rgba(255,154,60,.12);top:50%;left:45%;animation:bounceDot 3.8s ease-in-out 1.5s infinite}
@keyframes floatBubble{0%,100%{transform:translate(0,0) scale(1)}33%{transform:translate(25px,-25px) scale(1.08)}66%{transform:translate(-15px,15px) scale(.94)}}
@keyframes bounceDot{0%,100%{transform:translateY(0)}50%{transform:translateY(-16px)}}
.hero-content{position:relative;z-index:1;max-width:720px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-en);font-size:.8125rem;font-weight:600;color:var(--blue);background:rgba(0,153,255,.06);padding:8px 20px;border-radius:var(--radius-badge);margin-bottom:32px;letter-spacing:.05em;border:1px solid rgba(0,153,255,.1)}
.hero-badge .dot{width:8px;height:8px;background:var(--orange-soft);border-radius:50%;animation:pulse 2s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.3;transform:scale(1.8)}}
.hero-title{font-size:clamp(2.5rem,5.5vw,4rem);font-weight:800;line-height:1.12;margin-bottom:24px;color:var(--g9)}
.hero-title .hl{display:block}
.hero-title .hl:last-child{background:linear-gradient(135deg,var(--blue) 0%,var(--orange-soft) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-desc{font-size:1.2rem;color:var(--g6);max-width:520px;margin-bottom:40px;line-height:1.85}
.hero-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.hero-visual{position:absolute;right:-60px;top:50%;transform:translateY(-50%);z-index:1;width:48%;max-width:620px;pointer-events:none;opacity:.7}
.hero-logo-img{width:100%;height:auto;opacity:.45;filter:drop-shadow(0 20px 40px rgba(0,153,255,.12))}
.hero-visual svg{width:100%;height:auto}

/* Stats - 柔和 */
.stats{padding:64px 0;background:linear-gradient(180deg,var(--white),rgba(240,248,255,.5),var(--white));border-top:1px solid rgba(0,153,255,.08);border-bottom:1px solid rgba(0,153,255,.08)}
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stat-item{padding:24px;transition:transform var(--t-bounce)}
.stat-item:hover{transform:scale(1.06)}
.stat-number{font-family:var(--font-en);font-size:2.75rem;font-weight:800;background:linear-gradient(135deg,var(--blue),var(--orange-soft));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1.2}
.stat-label{font-size:.9375rem;color:var(--g6);font-weight:500}

/* About Preview */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.about-image{position:relative;border-radius:var(--radius-card);overflow:hidden;aspect-ratio:4/3;background:linear-gradient(135deg,#E8F4FF 0%,#D4EAFF 25%,#FFE8EC 55%,#FFF0E0 80%,#FFE0D0 100%);display:flex;align-items:center;justify-content:center;box-shadow:0 8px 40px rgba(0,153,255,.06)}
.about-image::after{content:'';position:absolute;inset:0;background:radial-gradient(circle at 70% 30%,rgba(255,154,60,.1) 0%,transparent 60%);pointer-events:none}
.about-image .ai-placeholder{text-align:center;padding:48px}
.about-text h3{font-family:var(--font-zh);font-weight:700;font-size:2rem;margin-bottom:24px}
.about-text h3 span{color:var(--blue)}
.about-text p{font-size:1.0625rem;line-height:1.9}
.about-text .btn{margin-top:24px}

/* Features */
.features{background:linear-gradient(180deg,var(--white),rgba(240,248,255,.6),var(--white))}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{background:var(--white);border:1.5px solid var(--g3);border-radius:var(--radius-card);padding:36px;transition:all var(--t-bounce);position:relative;overflow:hidden;cursor:default}
.feature-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--blue),var(--orange-soft),var(--orange));transform:scaleX(0);transform-origin:left;transition:transform var(--t-slow)}
.feature-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-6px) scale(1.02);border-color:var(--blue)}
.feature-card:hover::before{transform:scaleX(1)}
.feature-icon{width:60px;height:60px;border-radius:16px;display:flex;align-items:center;justify-content:center;margin-bottom:24px;background:linear-gradient(135deg,var(--blue-light),rgba(255,109,0,.06))}
.feature-icon svg{transition:transform var(--t-bounce)}
.feature-card:hover .feature-icon svg{transform:scale(1.15) rotate(-5deg)}
.feature-card h4{font-family:var(--font-zh);font-size:1.125rem;font-weight:600;margin-bottom:8px;color:var(--g9)}
.feature-card p{font-size:.9375rem;color:var(--g6);line-height:1.7;margin:0}

/* Product Teaser */
.product-teaser{background:linear-gradient(180deg,var(--white) 0%,rgba(240,248,255,.7) 50%,rgba(255,240,224,.3) 100%)}
.teaser-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.teaser-card{background:var(--white);border:1.5px solid var(--g3);border-radius:var(--radius-card);padding:40px 32px;text-align:center;transition:all var(--t-bounce);cursor:default}
.teaser-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-6px) scale(1.02);border-color:var(--blue)}
.teaser-visual{width:130px;height:130px;margin:0 auto 24px;border-radius:50%;background:linear-gradient(135deg,var(--blue-light),rgba(255,109,0,.08));display:flex;align-items:center;justify-content:center;transition:all var(--t-bounce);position:relative}
.teaser-visual::after{content:'';position:absolute;inset:-6px;border-radius:50%;border:2px dashed rgba(0,153,255,.12);animation:spinSlow 20s linear infinite}
@keyframes spinSlow{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}
.teaser-card:hover .teaser-visual{transform:scale(1.08);box-shadow:0 8px 28px rgba(0,153,255,.12)}
.teaser-visual svg{transition:transform var(--t-bounce)}
.teaser-card:hover .teaser-visual svg{transform:rotate(-3deg) scale(1.1)}
.teaser-card h4{font-size:1.125rem;font-weight:600;margin-bottom:8px}
.teaser-card p{font-size:.9375rem;color:var(--g6);margin-bottom:16px}
.teaser-tag{display:inline-block;font-family:var(--font-en);font-size:.75rem;font-weight:600;color:var(--orange);background:var(--orange-light);padding:6px 14px;border-radius:var(--radius-badge);letter-spacing:.05em;transition:all var(--t-bounce)}
.teaser-card:hover .teaser-tag{background:var(--orange);color:var(--white)}

/* CTA Banner */
.cta-banner{background:linear-gradient(135deg,var(--blue) 0%,#0055BB 100%);color:var(--white);text-align:center;padding:96px 0;position:relative;overflow:hidden}
.cta-banner::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 25% 40%,rgba(255,255,255,.08) 0%,transparent 50%),radial-gradient(circle at 75% 60%,rgba(255,109,0,.1) 0%,transparent 40%)}
/* CTA 装饰圆点 */
.cta-banner::after{content:'';position:absolute;width:20px;height:20px;background:rgba(255,255,255,.15);border-radius:50%;top:15%;left:10%;animation:bounceDot 4s ease-in-out infinite;pointer-events:none}
.cta-banner .container{position:relative;z-index:1}
.cta-banner h2{color:var(--white);font-size:2.5rem;margin-bottom:16px}
.cta-banner p{color:rgba(255,255,255,.8);font-size:1.125rem;max-width:560px;margin:0 auto 40px}
.cta-banner .btn{background:var(--white);color:var(--blue);font-weight:700;box-shadow:0 4px 24px rgba(0,0,0,.12);border-radius:16px}
.cta-banner .btn:hover{background:var(--blue-light);transform:translateY(-3px) scale(1.03);box-shadow:0 8px 30px rgba(255,255,255,.2)}

/* Subscription */
.subscribe-form{display:flex;gap:12px;max-width:480px;margin:0 auto;flex-wrap:wrap;justify-content:center}
.subscribe-form input{flex:1;min-width:240px;padding:14px 20px;border:2px solid rgba(255,255,255,.25);border-radius:var(--radius-input);background:rgba(255,255,255,.08);color:var(--white);font-size:1rem;outline:none;font-family:var(--font-zh);transition:all var(--t-fast)}
.subscribe-form input::placeholder{color:rgba(255,255,255,.45)}
.subscribe-form input:focus{border-color:rgba(255,255,255,.6);background:rgba(255,255,255,.12);box-shadow:0 0 0 4px rgba(255,255,255,.06)}

/* Footer */
.footer{background:var(--g9);color:rgba(255,255,255,.7);padding:64px 0 32px;position:relative}
.footer::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(0,153,255,.3),rgba(255,109,0,.15),transparent)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;margin-bottom:48px}
.footer-brand .fb{display:flex;align-items:center;gap:8px;margin-bottom:16px}
.footer-logo-img{height:36px;width:auto;object-fit:contain;opacity:.85;transition:opacity var(--t-fast)}
.footer-logo-img:hover{opacity:1}
.footer-brand .be{font-family:var(--font-en);font-size:1.25rem;font-weight:700;color:var(--white)}
.footer-brand .bz{font-size:.875rem;color:var(--blue)}
.footer-desc{font-size:.9375rem;line-height:1.8}
.footer-contact{margin-top:16px}
.fc-item{font-size:.8125rem;color:rgba(255,255,255,.4);line-height:1.8;margin-bottom:2px}
.footer h4{font-family:var(--font-en);font-size:.8125rem;font-weight:600;color:var(--white);margin-bottom:20px;letter-spacing:.05em;text-transform:uppercase}
.footer-links{list-style:none}
.footer-links li{margin-bottom:8px}
.footer-links a{font-size:.9375rem;color:rgba(255,255,255,.5);transition:all var(--t-fast)} .footer-links a:hover{color:var(--orange-soft);padding-left:4px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.06);padding-top:24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;font-size:.8125rem}
.footer-bottom span{color:rgba(255,255,255,.35)}

/* Page Hero (inner pages) */
.page-hero{min-height:45vh;display:flex;align-items:center;background:linear-gradient(180deg,rgba(255,248,245,.8) 0%,#E8F4FD 40%,var(--white) 100%);padding-top:var(--nav-h);text-align:center;position:relative;overflow:hidden}
.page-hero::after{content:'';position:absolute;width:200px;height:200px;border-radius:50%;background:radial-gradient(circle,rgba(255,109,0,.04),transparent 70%);bottom:-40px;right:10%;pointer-events:none;animation:floatBubble 18s ease-in-out infinite}
.page-hero h1{margin-bottom:16px;background:linear-gradient(135deg,var(--g9),var(--blue));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.page-hero .sub{font-size:1.125rem;color:var(--g6);max-width:800px;margin:0 auto;white-space:nowrap}

/* About - Story */
.story-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;margin-bottom:96px}
.story-grid:last-child{margin-bottom:0}
.story-grid.reverse .story-visual{order:2} .story-grid.reverse .story-text{order:1}
.story-visual{border-radius:var(--radius-card);overflow:hidden;aspect-ratio:4/3;background:linear-gradient(135deg,#E8F4FF 0%,#FFF0E0 50%,#FFE8EC 100%);display:flex;align-items:center;justify-content:center;box-shadow:0 8px 40px rgba(0,153,255,.05)}
.story-text h3{font-family:var(--font-zh);font-size:1.75rem;font-weight:700;margin-bottom:24px}
.story-text h3 span{color:var(--blue)}
.story-text p{font-size:1.0625rem;line-height:1.9}
.story-text .quote{font-family:var(--font-en);font-size:2.5rem;color:var(--orange-soft);opacity:.25;line-height:1;margin-bottom:16px}

/* Team */
.team-section{background:linear-gradient(180deg,var(--white),rgba(240,248,255,.5),var(--white))}
.team-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.team-card{background:var(--white);border-radius:var(--radius-card);padding:36px 28px;text-align:center;border:1.5px solid var(--g3);transition:all var(--t-bounce);cursor:default}
.team-card:hover{box-shadow:0 12px 40px rgba(0,153,255,.1);transform:translateY(-6px) scale(1.03);border-color:var(--blue-light)}
.team-avatar{width:88px;height:88px;border-radius:50%;margin:0 auto 20px;background:linear-gradient(135deg,#E0F0FF 0%,#FFE8EC 50%,#FFF0E0 100%);display:flex;align-items:center;justify-content:center;font-family:var(--font-en);font-size:2.2rem;font-weight:700;color:var(--blue);transition:all var(--t-bounce);position:relative}
.team-avatar::after{content:'';position:absolute;inset:-5px;border-radius:50%;border:2px dashed rgba(0,153,255,.1);animation:spinSlow 25s linear infinite}
.team-card:hover .team-avatar{transform:scale(1.08);box-shadow:0 8px 28px rgba(0,153,255,.15)}
.team-card .name{font-size:1rem;font-weight:600;color:var(--g9);margin-bottom:4px}
.team-card .role{font-size:.8125rem;color:var(--blue);font-weight:500;margin-bottom:12px}
.team-card .bio{font-size:.875rem;color:var(--g6);line-height:1.6}

/* Values */
.values-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.value-card{text-align:center;padding:48px 32px;background:var(--white);border:1.5px solid var(--g3);border-radius:var(--radius-card);transition:all var(--t-bounce);cursor:default}
.value-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-6px) scale(1.02);border-color:var(--blue)}
.value-icon{width:80px;height:80px;margin:0 auto 24px;border-radius:20px;background:linear-gradient(135deg,var(--blue-light),rgba(255,109,0,.06));display:flex;align-items:center;justify-content:center;transition:all var(--t-bounce)}
.value-card:hover .value-icon{transform:scale(1.1) rotate(-5deg);box-shadow:0 8px 24px rgba(0,153,255,.12)}
.value-card h4{font-size:1.25rem;font-weight:600;margin-bottom:8px}
.value-card p{font-size:.9375rem;color:var(--g6);line-height:1.7}

/* Products */
.product-showcase{background:linear-gradient(180deg,var(--white),rgba(240,248,255,.5),var(--white))}
.showcase-item{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;background:var(--white);border-radius:var(--radius-card);padding:48px;border:1.5px solid var(--g3);margin-bottom:32px;transition:all var(--t-bounce)}
.showcase-item:last-child{margin-bottom:0}
.showcase-item:hover{box-shadow:0 12px 40px rgba(0,153,255,.08);transform:translateY(-4px)}
.showcase-visual{border-radius:var(--radius-card);aspect-ratio:1;background:linear-gradient(135deg,#E8F4FF,#D4EAFF,#FFF0E0,#FFE8D0);display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;box-shadow:0 6px 30px rgba(0,153,255,.05)}
.showcase-visual::after{content:'';position:absolute;inset:0;background:radial-gradient(circle at 60% 40%,rgba(255,109,0,.06),transparent 60%);pointer-events:none}
.showcase-badge{position:absolute;top:24px;right:24px;font-family:var(--font-en);font-size:.75rem;font-weight:600;background:linear-gradient(135deg,var(--orange),var(--orange-soft));color:var(--white);padding:6px 14px;border-radius:var(--radius-badge);box-shadow:0 4px 12px rgba(255,109,0,.2)}
.showcase-info h3{font-size:1.5rem;font-weight:700;margin-bottom:8px}
.showcase-info .sub{font-family:var(--font-en);font-size:.875rem;color:var(--blue);font-weight:600;text-transform:uppercase;letter-spacing:1px;margin-bottom:24px}
.showcase-info p{font-size:1rem;line-height:1.8;margin-bottom:24px}
.showcase-tags{display:flex;flex-wrap:wrap;gap:8px}
.showcase-tags .tag{font-size:.8125rem;font-weight:500;padding:6px 14px;border-radius:var(--radius-badge);background:var(--blue-light);color:var(--blue);transition:all var(--t-fast)}
.showcase-tags .tag:hover{background:var(--blue);color:var(--white)}

/* Technology */
.tech-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.tech-card{text-align:center;padding:48px 32px;background:var(--white);border:1.5px solid var(--g3);border-radius:var(--radius-card);transition:all var(--t-bounce);position:relative;overflow:hidden;cursor:default}
.tech-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-6px) scale(1.02);border-color:var(--blue)}
.tech-card .tn{font-family:var(--font-en);font-size:3.5rem;font-weight:800;color:var(--blue);opacity:.06;position:absolute;top:16px;right:16px;line-height:1;transition:all var(--t-slow)}
.tech-card:hover .tn{opacity:.12;transform:scale(1.2)}
.tech-icon{width:68px;height:68px;margin:0 auto 24px;border-radius:18px;background:linear-gradient(135deg,var(--blue-light),rgba(255,109,0,.06));display:flex;align-items:center;justify-content:center;transition:all var(--t-bounce)}
.tech-card:hover .tech-icon{transform:scale(1.1) rotate(-5deg);box-shadow:0 8px 24px rgba(0,153,255,.12)}
.tech-card h4{font-size:1.25rem;font-weight:600;margin-bottom:4px}
.tech-en{font-family:var(--font-en);font-size:.8125rem;font-weight:600;color:var(--blue);letter-spacing:.05em;display:block;margin-bottom:16px}
.tech-card p{font-size:.9375rem;color:var(--g6);line-height:1.7}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px}
.contact-info h3{font-family:var(--font-zh);font-size:1.5rem;font-weight:700;margin-bottom:24px}
.contact-item{display:flex;align-items:flex-start;gap:16px;margin-bottom:24px;padding:16px;border-radius:var(--radius-card);transition:all var(--t-bounce);cursor:default}
.contact-item:hover{background:var(--blue-bg)}
.contact-item .ci{width:52px;height:52px;border-radius:14px;background:linear-gradient(135deg,var(--blue-light),rgba(255,109,0,.06));display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:all var(--t-bounce)}
.contact-item:hover .ci{transform:scale(1.1)}
.contact-item h5{font-size:1rem;font-weight:600;margin-bottom:4px;color:var(--g9)}
.contact-item p{font-size:.9375rem;color:var(--g6);margin:0}
.contact-form{background:var(--white);border:1.5px solid var(--g3);border-radius:var(--radius-card);padding:40px;box-shadow:var(--shadow-card)}
.contact-form h3{font-family:var(--font-zh);font-size:1.5rem;font-weight:700;margin-bottom:24px}
.form-group{margin-bottom:20px}
.form-group label{display:block;font-size:.875rem;font-weight:600;color:var(--g8);margin-bottom:8px}
.form-group input,.form-group textarea,.form-group select{width:100%;padding:14px 18px;border:2px solid var(--g4);border-radius:var(--radius-input);font-size:1rem;font-family:var(--font-zh);color:var(--g8);background:var(--white);transition:all var(--t-fast);outline:none;resize:vertical}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(0,153,255,.08);background:var(--blue-bg)}
.form-group textarea{min-height:120px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.contact-map{height:300px;width:100%;background:linear-gradient(135deg,var(--g2),#E8F4FD);border-radius:var(--radius-card);display:flex;align-items:center;justify-content:center;color:var(--g5);font-size:.9375rem;margin-top:48px}
/* ====== AI 智能客服卡片 ====== */
.ai-chat-card{display:flex;flex-direction:column;gap:0}
.ai-header{display:flex;align-items:center;gap:16px;padding-bottom:24px;border-bottom:1.5px solid var(--g3);margin-bottom:0}
.ai-avatar{width:56px;height:56px;border-radius:16px;background:linear-gradient(135deg,var(--blue) 0%,var(--blue-warm) 100%);display:flex;align-items:center;justify-content:center;color:var(--white);flex-shrink:0;box-shadow:0 4px 16px rgba(0,153,255,.2)}
.ai-title-group h3{font-family:var(--font-zh);font-size:1.25rem;font-weight:700;margin-bottom:4px;color:var(--g9)}
.ai-status{display:flex;align-items:center;gap:6px;font-size:.8125rem;color:var(--g5);font-weight:500}
.ai-dot{display:inline-block;width:8px;height:8px;background:#22C55E;border-radius:50%;animation:pulse 2s ease-in-out infinite}
.ai-messages{padding:24px 0;display:flex;flex-direction:column;gap:16px;max-height:260px;overflow-y:auto}
.ai-msg{display:flex;align-items:flex-start;gap:10px}
.ai-msg-avatar{width:36px;height:36px;border-radius:12px;background:linear-gradient(135deg,var(--blue-light),rgba(255,109,0,.08));display:flex;align-items:center;justify-content:center;color:var(--blue);flex-shrink:0}
.ai-msg-bubble{background:var(--g1);border-radius:4px 16px 16px 16px;padding:14px 18px;max-width:85%}
.ai-msg-bubble p{font-size:.9375rem;color:var(--g7);margin:0;line-height:1.7}
.ai-msg.from-user .ai-msg-bubble{background:linear-gradient(135deg,var(--blue-light),rgba(0,153,255,.08));border-radius:16px 4px 16px 16px;color:var(--blue);margin-left:auto}
.ai-suggestions{padding:16px 0 20px;border-top:1.5px solid var(--g3)}
.ai-sug-label{font-size:.8125rem;font-weight:600;color:var(--g5);display:block;margin-bottom:12px}
.ai-sug-list{display:flex;flex-wrap:wrap;gap:8px}
.ai-sug-chip{font-family:var(--font-zh);font-size:.875rem;font-weight:500;color:var(--blue);background:var(--blue-light);border:1.5px solid transparent;padding:8px 16px;border-radius:var(--radius-badge);cursor:pointer;transition:all var(--t-bounce);white-space:nowrap}
.ai-sug-chip:hover{background:var(--blue);color:var(--white);transform:translateY(-2px);box-shadow:0 4px 12px rgba(0,153,255,.2);border-color:var(--blue)}
.ai-input-area{display:flex;align-items:center;gap:12px;padding:14px 18px;background:var(--g1);border:2px solid var(--g3);border-radius:var(--radius-input);transition:all var(--t-fast);margin-top:4px}
.ai-input-area:focus-within{border-color:var(--blue);box-shadow:0 0 0 4px rgba(0,153,255,.08);background:var(--white)}
.ai-input{flex:1;border:none;background:transparent;font-family:var(--font-zh);font-size:.9375rem;color:var(--g8);outline:none}
.ai-input::placeholder{color:var(--g5)}
.ai-send-btn{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,var(--blue),var(--blue-warm));border:none;color:var(--white);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--t-bounce);flex-shrink:0;box-shadow:0 4px 12px rgba(0,153,255,.2)}
.ai-send-btn:hover{transform:scale(1.1);box-shadow:0 6px 18px rgba(0,153,255,.3)}
.ai-send-btn svg{transition:transform var(--t-fast)}
.ai-send-btn:hover svg{transform:translateX(2px) translateY(-2px)}

/* Q&A */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.faq-item{background:var(--white);border:1.5px solid var(--g3);border-radius:var(--radius-card);padding:28px;transition:all var(--t-base);cursor:default}
.faq-item:hover{box-shadow:var(--shadow-hover);border-color:var(--blue-light);transform:translateY(-2px)}
.faq-item h5{font-size:1rem;font-weight:600;margin-bottom:8px;color:var(--g9)}
.faq-item h5::before{content:'Q. ';color:var(--blue);font-family:var(--font-en);font-weight:700}
.faq-item p{font-size:.9375rem;color:var(--g6);margin:0;line-height:1.7}
.faq-item p::before{content:'A. ';color:var(--orange-soft);font-family:var(--font-en);font-weight:600}

/* Animations */
.fade-up{opacity:0;transform:translateY(30px);transition:all .8s cubic-bezier(.4,0,.2,1)}
.fade-up.visible{opacity:1;transform:translateY(0)}


/* --- 页脚二维码样式 --- */
.footer-qrcodes {
  /* 限制最大宽度，防止过宽 */
  max-width: 200px;
  margin-right: auto;
}

.footer-qrcodes h4 {
  color: #fff;
  font-size: .8125rem;
  margin-bottom: 20px;
  font-weight: 600;
  letter-spacing: .05em; /* 与其他标题保持一致 */
  text-transform: uppercase; /* 与其他标题保持一致 */
  text-align: left; /* 保持左对齐 */
}

.qrcodes-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  justify-content: start; 
  align-items: start;
}

.qrcode-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.35rem;
}

.qrcode-item img {
  width: 70px;
  height: 70px;
  object-fit: cover;
  border-radius: 8px;
  background-color: #fff;
  padding: 4px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  display: block;
}

.qrcode-item img:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 16px rgba(0, 153, 255, 0.25);
}

.qrcode-item span {
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  font-weight: 400;
}

/* Responsive */
@media(max-width:1024px){
  .about-grid,.story-grid,.contact-grid,.showcase-item{grid-template-columns:1fr;gap:48px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .team-grid{grid-template-columns:repeat(2,1fr)}
  .story-grid.reverse .story-visual{order:0}
  .form-row{grid-template-columns:1fr}
  .page-hero .sub{white-space:normal;max-width:600px}
}
@media(max-width:768px){
  .section{padding:64px 0}
  .nav-links{display:none;position:fixed;top:var(--nav-h);left:0;right:0;background:var(--white);flex-direction:column;padding:24px;gap:0;border-bottom:1px solid var(--g3);box-shadow:var(--shadow-card)}
  .nav-links.open{display:flex}
  .nav-links a{font-size:1.125rem;padding:12px 0;border-bottom:1px solid var(--g2)}
  .nav-links a:last-child{border-bottom:none}
  .nav-links a::after{display:none}
  .nav-toggle{display:flex}
  .nav-cta{display:none}
  .ftr-cta{display:block;margin-top:8px}
  .features-grid,.teaser-grid,.tech-grid,.values-grid{grid-template-columns:1fr}
  .stats-row{grid-template-columns:repeat(2,1fr)}
  .hero-visual{display:none}
  .faq-grid{grid-template-columns:1fr}
  .team-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:480px){
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{justify-content:center}
  .subscribe-form{flex-direction:column}
  .team-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;text-align:center}
}