/* ===== Reset & Base ===== */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;color:#e8dcc8;overflow-x:hidden;background:#28201a;line-height:1.7}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
ul{list-style:none}

/* ===== Variables ===== */
:root{
  --gold:#c9a870;
  --gold-dim:#9a8570;
  --gold-bright:#e8dcc8;
  --bg-dark:#28201a;
  --bg-mid:#322820;
  --bg-light:#3a3025;
  --bg-card:rgba(201,168,112,0.04);
  --border:rgba(201,168,112,0.15);
  --border-hover:rgba(201,168,112,0.4);
  --text:#e8dcc8;
  --text-normal:#c8c0b0;
  --text-muted:#b0a898;
  --text-dim:#9a8a70;
}

/* ===== Navigation ===== */
.nav{position:fixed;top:0;left:0;right:0;z-index:1000;padding:18px 0;transition:all 0.4s ease;background:transparent}
.nav.scrolled{background:rgba(40,32,26,0.95);backdrop-filter:blur(12px);padding:12px 0;border-bottom:1px solid var(--border)}
.nav-inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:0 24px}
.nav-logo{font-size:22px;font-weight:700;color:var(--gold);letter-spacing:4px}
.nav-menu{display:flex;align-items:center;gap:32px}
.nav-link{font-size:14px;color:var(--text-normal);letter-spacing:2px;transition:color 0.3s;position:relative}
.nav-link::after{content:"";position:absolute;bottom:-4px;left:0;width:0;height:2px;background:var(--gold);transition:width 0.3s}
.nav-link:hover,.nav-link.active{color:var(--gold)}
.nav-link:hover::after,.nav-link.active::after{width:100%}
.nav-cta{padding:8px 24px;border:1px solid var(--gold);border-radius:25px;color:var(--gold);font-size:13px;letter-spacing:2px;transition:all 0.3s}
.nav-cta:hover{background:var(--gold);color:var(--bg-dark)}
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:4px}
.nav-toggle span{width:24px;height:2px;background:var(--gold);transition:all 0.3s}
.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)}

/* ===== Hero (shared) ===== */
.hero{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:40px 20px;position:relative;background:linear-gradient(135deg,var(--bg-light) 0%,#322820 40%,var(--bg-light) 100%);overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 50% 30%,rgba(201,168,112,0.12) 0%,transparent 60%);pointer-events:none}
.hero-logo{font-size:42px;font-weight:700;letter-spacing:12px;color:var(--gold);text-shadow:0 0 40px rgba(201,168,112,0.3);margin-bottom:8px}
.hero-en{font-size:11px;letter-spacing:6px;color:var(--gold-dim);margin-bottom:40px;text-transform:uppercase}
.hero-slogan{font-size:22px;letter-spacing:4px;line-height:2.2;color:var(--gold-bright);margin-bottom:8px;font-weight:300}
.hero-slogan-sub{font-size:15px;letter-spacing:3px;color:var(--gold-dim);margin-bottom:50px}
.hero-tag{display:inline-block;padding:8px 28px;border:1px solid rgba(201,168,112,0.4);border-radius:30px;font-size:13px;color:var(--gold);letter-spacing:2px;backdrop-filter:blur(10px)}
.hero-scroll{position:absolute;bottom:30px;left:50%;transform:translateX(-50%);color:var(--gold-dim);font-size:12px;letter-spacing:2px;animation:bounce 2s infinite}
@keyframes bounce{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(-8px)}}

/* Page hero (smaller) */
.page-hero{min-height:50vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:120px 20px 60px;background:linear-gradient(135deg,var(--bg-light) 0%,#322820 50%,var(--bg-light) 100%);position:relative;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 50% 40%,rgba(201,168,112,0.1) 0%,transparent 60%)}
.page-hero-title{font-size:36px;color:var(--gold);letter-spacing:8px;font-weight:700;margin-bottom:10px;position:relative;z-index:1}
.page-hero-sub{font-size:13px;color:var(--gold-dim);letter-spacing:4px;text-transform:uppercase;position:relative;z-index:1}

/* ===== Section ===== */
.section{padding:80px 20px;position:relative}
.section-alt{background:var(--bg-mid)}
.container{max-width:1200px;margin:0 auto}
.container-narrow{max-width:760px;margin:0 auto}
.section-title{text-align:center;font-size:28px;color:var(--gold);letter-spacing:6px;margin-bottom:10px;font-weight:600}
.section-sub{text-align:center;font-size:12px;color:var(--gold-dim);letter-spacing:4px;text-transform:uppercase;margin-bottom:50px}

/* ===== Cards ===== */
.card{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:28px 24px;transition:all 0.4s ease;position:relative;overflow:hidden}
.card:hover{border-color:var(--border-hover);transform:translateY(-4px);box-shadow:0 12px 40px rgba(201,168,112,0.08)}
.card-accent::before{content:"";position:absolute;top:0;left:0;width:4px;height:100%;background:linear-gradient(180deg,var(--gold),var(--gold-dim));opacity:0;transition:opacity 0.4s}
.card-accent:hover::before{opacity:1}

/* Grid */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}

/* Tags */
.tag{display:inline-block;padding:4px 14px;background:rgba(201,168,112,0.08);border:1px solid rgba(201,168,112,0.15);border-radius:20px;font-size:12px;color:var(--gold-dim);margin:4px 4px 0 0}
.tag-sm{font-size:11px;padding:3px 10px;border-radius:12px}

/* ===== Business Card ===== */
.biz-num{font-size:13px;color:var(--gold-dim);letter-spacing:2px;margin-bottom:6px}
.biz-name{font-size:18px;color:var(--gold);font-weight:600;margin-bottom:10px;letter-spacing:1px}
.biz-desc{font-size:13px;color:var(--text-muted);line-height:1.9}
.biz-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}

/* ===== Buttons ===== */
.btn{display:inline-block;padding:12px 36px;border-radius:30px;font-size:14px;letter-spacing:2px;transition:all 0.3s;cursor:pointer;border:none}
.btn-gold{background:linear-gradient(135deg,var(--gold),#8a7558);color:var(--bg-dark);font-weight:600}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(201,168,112,0.3)}
.btn-outline{border:1px solid var(--gold);color:var(--gold);background:transparent}
.btn-outline:hover{background:var(--gold);color:var(--bg-dark)}

/* ===== Culture ===== */
.culture-card{text-align:center;padding:32px 24px}
.culture-label{font-size:12px;color:var(--gold-dim);letter-spacing:3px;margin-bottom:14px}
.culture-value{font-size:16px;color:var(--gold);line-height:2;font-weight:500}

/* ===== Team ===== */
.team-card{text-align:center;padding:24px 20px}
.team-avatar{width:72px;height:72px;border-radius:50%;background:linear-gradient(135deg,rgba(201,168,112,0.2),rgba(201,168,112,0.05));display:flex;align-items:center;justify-content:center;margin:0 auto 14px;font-size:28px;color:var(--gold);border:2px solid var(--border);overflow:hidden}
.team-avatar img{width:100%;height:100%;object-fit:cover;border-radius:50%}
.team-name{font-size:17px;color:var(--gold);font-weight:600;margin-bottom:4px}
.team-role{font-size:12px;color:var(--gold-dim);margin-bottom:10px;letter-spacing:1px}
.team-desc{font-size:12px;color:var(--text-muted);line-height:1.8}

/* ===== Advantage ===== */
.adv-card{display:flex;align-items:flex-start;gap:16px;padding:24px 20px}
.adv-icon{flex-shrink:0;width:48px;height:48px;border-radius:12px;background:linear-gradient(135deg,rgba(201,168,112,0.15),rgba(201,168,112,0.05));display:flex;align-items:center;justify-content:center;font-size:22px}
.adv-icon svg{display:block;flex-shrink:0}
.adv-title{font-size:15px;color:var(--gold);font-weight:600;margin-bottom:6px}
.adv-desc{font-size:13px;color:var(--text-muted);line-height:1.8}

/* ===== Contact ===== */
.contact-card{max-width:560px;margin:0 auto;background:rgba(201,168,112,0.06);border:1px solid var(--border-hover);border-radius:20px;padding:40px 30px;text-align:center;backdrop-filter:blur(10px)}
.contact-row{display:flex;align-items:center;justify-content:center;gap:12px;margin:14px 0;font-size:15px;color:var(--gold-bright)}
.contact-row-label{font-size:12px;color:var(--gold-dim);min-width:40px;text-align:right}

/* Form */
.form-group{margin-bottom:20px;text-align:left}
.form-label{display:block;font-size:13px;color:var(--gold);margin-bottom:6px;letter-spacing:1px}
.form-input,.form-select,.form-textarea{width:100%;padding:12px 16px;background:rgba(201,168,112,0.04);border:1px solid var(--border);border-radius:10px;color:var(--text);font-size:14px;font-family:inherit;transition:border-color 0.3s}
.form-input:focus,.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--gold)}
.form-textarea{min-height:120px;resize:vertical}
.form-input::placeholder,.form-textarea::placeholder{color:var(--gold-dim);opacity:0.6}

/* FAQ */
.faq-item{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:border-color 0.3s}
.faq-item:hover{border-color:var(--border-hover)}
.faq-q{padding:20px 24px;font-size:15px;color:var(--gold);cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:500}
.faq-q::after{content:"+";font-size:20px;color:var(--gold-dim);transition:transform 0.3s}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 0.4s ease;padding:0 24px}
.faq-item.open .faq-a{max-height:300px;padding:0 24px 20px}
.faq-a p{font-size:13px;color:var(--text-muted);line-height:1.9}

/* Timeline */
.timeline{position:relative;padding-left:40px}
.timeline::before{content:"";position:absolute;left:12px;top:0;bottom:0;width:2px;background:linear-gradient(180deg,var(--gold),transparent)}
.timeline-item{position:relative;margin-bottom:32px}
.timeline-item::before{content:"";position:absolute;left:-34px;top:4px;width:14px;height:14px;border-radius:50%;background:var(--gold);border:2px solid var(--bg-dark);box-shadow:0 0 10px rgba(201,168,112,0.4)}
.timeline-date{font-size:12px;color:var(--gold-dim);letter-spacing:1px;margin-bottom:4px}
.timeline-title{font-size:16px;color:var(--gold);font-weight:600;margin-bottom:4px}
.timeline-desc{font-size:13px;color:var(--text-muted);line-height:1.8}

/* Case filter */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:40px}
.filter-btn{padding:8px 22px;border:1px solid var(--border);border-radius:25px;font-size:13px;color:var(--text-muted);cursor:pointer;transition:all 0.3s;background:transparent}
.filter-btn:hover{border-color:var(--border-hover);color:var(--gold)}
.filter-btn.active{background:var(--gold);color:var(--bg-dark);border-color:var(--gold)}

/* Case card */
.case-card{cursor:pointer}
.case-img{width:100%;height:200px;border-radius:12px;background:linear-gradient(135deg,rgba(201,168,112,0.1),rgba(201,168,112,0.03));display:flex;align-items:center;justify-content:center;font-size:40px;margin-bottom:16px;border:1px solid var(--border);overflow:hidden;position:relative}
.case-img img{width:100%;height:100%;object-fit:cover;border-radius:12px;transition:transform 0.5s ease}
.case-card:hover .case-img img{transform:scale(1.05)}
.case-category{font-size:11px;color:var(--gold-dim);letter-spacing:1px;margin-bottom:6px}
.case-title{font-size:16px;color:var(--gold);font-weight:600;margin-bottom:8px}
.case-desc{font-size:13px;color:var(--text-muted);line-height:1.8}

/* Job card */
.job-card{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px}
.job-info{flex:1;min-width:250px}
.job-title{font-size:17px;color:var(--gold);font-weight:600;margin-bottom:6px}
.job-meta{display:flex;flex-wrap:wrap;gap:12px;font-size:12px;color:var(--gold-dim)}
.job-meta span::before{content:"";display:inline-block;width:4px;height:4px;border-radius:50%;background:var(--gold-dim);margin-right:6px;vertical-align:middle}
.job-detail{font-size:13px;color:var(--text-muted);line-height:1.8;margin-top:10px;max-height:0;overflow:hidden;transition:max-height 0.4s}
.job-card.open .job-detail{max-height:500px;margin-top:10px}

/* CTA Section */
.cta-section{text-align:center;padding:80px 20px;background:linear-gradient(135deg,var(--bg-light) 0%,#322820 50%,var(--bg-light) 100%);position:relative;overflow:hidden}
.cta-section::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 50% 50%,rgba(201,168,112,0.1) 0%,transparent 60%)}
.cta-title{font-size:28px;color:var(--gold);letter-spacing:4px;margin-bottom:12px;font-weight:600;position:relative;z-index:1}
.cta-sub{font-size:14px;color:var(--text-muted);margin-bottom:32px;position:relative;z-index:1}
.cta-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;position:relative;z-index:1}

/* Process steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.step{text-align:center;position:relative}
.step-num{width:60px;height:60px;border-radius:50%;background:linear-gradient(135deg,rgba(201,168,112,0.15),rgba(201,168,112,0.05));border:2px solid var(--border);display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:22px;color:var(--gold);font-weight:700;transition:all 0.3s}
.step:hover .step-num{border-color:var(--gold);box-shadow:0 0 20px rgba(201,168,112,0.2)}
.step-title{font-size:15px;color:var(--gold);font-weight:600;margin-bottom:6px}
.step-desc{font-size:12px;color:var(--text-muted);line-height:1.7}
.steps-line{position:absolute;top:30px;left:12%;right:12%;height:2px;background:linear-gradient(90deg,transparent,var(--border),var(--border),transparent);z-index:0}

/* Highlight text */
.highlight{color:var(--gold);font-weight:600}
.mission-lead{font-size:21px;line-height:1.9;color:var(--gold);text-align:center;font-weight:600;letter-spacing:2px;margin-bottom:24px}

/* Stat */
.stat{text-align:center;padding:24px 16px}
.stat-num{font-size:40px;color:var(--gold);font-weight:700;margin-bottom:6px}
.stat-label{font-size:13px;color:var(--text-muted);letter-spacing:2px}

/* ===== Footer ===== */
.footer{background:var(--bg-dark);padding:50px 20px 30px;border-top:1px solid var(--border)}
.footer-inner{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr 1fr;gap:32px;margin-bottom:30px}
.footer-brand{font-size:20px;color:var(--gold);font-weight:700;letter-spacing:4px;margin-bottom:12px}
.footer-desc{font-size:13px;color:var(--text-dim);line-height:1.8;margin-bottom:16px}
.footer-col-title{font-size:14px;color:var(--gold);margin-bottom:14px;letter-spacing:2px;font-weight:600}
.footer-col ul li{margin-bottom:8px}
.footer-col ul li a{font-size:13px;color:var(--text-dim);transition:color 0.3s}
.footer-col ul li a:hover{color:var(--gold)}
.footer-contact-item{font-size:13px;color:var(--text-dim);line-height:1.9}
.footer-bottom{text-align:center;padding-top:24px;border-top:1px solid var(--border)}
.footer-bottom p{font-size:12px;color:var(--text-dim);line-height:1.8}
.footer-icp{font-size:11px;color:var(--text-dim);margin-top:4px}
.footer-icp:first-of-type{margin-top:8px}
.footer-icp a{color:var(--text-dim);transition:color 0.3s}
.footer-icp a:hover{color:var(--gold)}
.footer-qr{text-align:center}
.footer-qr-img{width:92px;height:92px;background:#fff;padding:6px;border-radius:8px;border:1px solid var(--border);margin:0 auto 8px;display:block}
.footer-qr-tip{font-size:11px;color:var(--text-dim);line-height:1.5}
.contact-qr{max-width:480px;margin:26px auto 0;text-align:center;background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:26px 20px}
.contact-qr-img{width:140px;height:140px;background:#fff;padding:8px;border-radius:10px;border:1px solid var(--border);margin:0 auto 14px;display:block}
.contact-qr-title{font-size:16px;color:var(--gold);font-weight:600;margin-bottom:6px}
.contact-qr-tip{font-size:13px;color:var(--text-dim)}

/* ===== Animations ===== */
.fade-in{opacity:0;transform:translateY(30px);transition:all 0.8s ease}
.fade-in.visible{opacity:1;transform:translateY(0)}
.fade-in-left{opacity:0;transform:translateX(-30px);transition:all 0.8s ease}
.fade-in-left.visible{opacity:1;transform:translateX(0)}

/* ===== Responsive ===== */
@media(max-width:968px){
  .footer-inner{grid-template-columns:1fr 1fr;gap:30px}
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr);gap:30px}
  .steps-line{display:none}
  .hero-logo{font-size:34px;letter-spacing:8px}
  .hero-slogan{font-size:18px}
  .section-title{font-size:24px}
  .page-hero-title{font-size:28px}
}
@media(max-width:640px){
  .nav-menu{display:none;position:fixed;top:60px;left:0;right:0;background:rgba(40,32,26,0.98);flex-direction:column;padding:20px;gap:16px;border-bottom:1px solid var(--border)}
  .nav-menu.show{display:flex}
  .nav-toggle{display:flex}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .hero-logo{font-size:28px;letter-spacing:6px}
  .hero-slogan{font-size:16px;letter-spacing:2px}
  .section{padding:50px 16px}
  .section-title{font-size:22px;letter-spacing:4px}
  .page-hero-title{font-size:24px;letter-spacing:4px}
  .contact-row{flex-direction:column;gap:4px}
  .contact-row-label{text-align:center}
  .job-card{flex-direction:column;align-items:flex-start}
}