:root{--gold:#c9a24b;--gold-light:#e0c074;--brown:#5a3a1f;--brown-deep:#3d2714;--cream:#faf6ee;--ink:#333;--line:#eadfc4}
*{box-sizing:border-box;margin:0;padding:0}
html,body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Hiragino Sans GB","Heiti SC",sans-serif;color:var(--ink);background:var(--cream);line-height:1.6}
a{color:var(--brown);text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:1100px;margin:0 auto;padding:0 18px}
.btn-gold{display:inline-block;background:linear-gradient(135deg,var(--gold),var(--gold-light));color:#fff;padding:12px 30px;border-radius:30px;font-weight:600;letter-spacing:1px;border:none;cursor:pointer;transition:.25s;box-shadow:0 4px 14px rgba(201,162,75,.35)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 6px 18px rgba(201,162,75,.5);color:#fff}
.btn-gold.block{width:100%;text-align:center}
.btn-ghost{display:inline-block;color:#fff;padding:12px 28px;border-radius:30px;border:1px solid rgba(255,255,255,.6);font-weight:500;letter-spacing:1px;transition:.25s;background:transparent}
.btn-ghost:hover{border-color:var(--gold-light);color:var(--gold-light);background:rgba(255,255,255,.06)}

/* ===== 顶部导航 ===== */
.site-header{background:rgba(61,39,20,.92);backdrop-filter:blur(6px);position:sticky;top:0;z-index:50;box-shadow:0 2px 12px rgba(0,0,0,.15)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;flex-direction:column;line-height:1.1;color:#fff}
.brand-cn{font-size:18px;font-weight:700;letter-spacing:2px}
.brand-en{font-size:11px;color:var(--gold-light);letter-spacing:3px;text-transform:uppercase}
.main-nav{display:flex;gap:8px}
.main-nav a{padding:8px 14px;color:rgba(255,255,255,.9);border-radius:20px;font-size:15px;transition:.2s}
.main-nav a:hover,.main-nav a.active{background:var(--gold);color:#fff}
.nav-cta{background:var(--gold)!important;color:#fff!important}
.menu-toggle{display:none;background:none;border:none;color:#fff;font-size:26px;cursor:pointer}

/* ===== 首页 · 全屏主视觉（图一风格）===== */
.hero{position:relative;min-height:100vh;color:#fff;overflow:hidden;display:flex;align-items:center}
.hero-bg{position:absolute;inset:0;background:center/cover no-repeat;background-image:url('../assets/images/placeholder.svg');z-index:0}
.hero-veil{position:absolute;inset:0;background:linear-gradient(100deg,rgba(20,12,6,.72) 0%,rgba(61,39,20,.55) 45%,rgba(90,58,31,.35) 100%);z-index:1}

.side-menu{position:relative;z-index:2;width:300px;flex-shrink:0;padding:46px 30px;background:rgba(30,18,8,.42);backdrop-filter:blur(4px);border-right:1px solid rgba(255,255,255,.08);align-self:stretch;display:flex;flex-direction:column;justify-content:center}
.side-brand{margin-bottom:34px}
.side-cn{display:block;font-size:20px;font-weight:700;letter-spacing:3px;color:#fff}
.side-en{display:block;font-size:10px;color:var(--gold-light);letter-spacing:4px;margin-top:6px;text-transform:uppercase}
.side-nav{display:flex;flex-direction:column;gap:4px}
.side-link{display:flex;align-items:center;gap:12px;padding:12px 6px;color:rgba(255,255,255,.9);font-size:17px;letter-spacing:2px;border-bottom:1px solid rgba(255,255,255,.08);transition:.2s}
.side-link:hover{color:var(--gold-light);padding-left:14px}
.side-dot{width:7px;height:7px;border-radius:50%;background:var(--gold);flex-shrink:0;opacity:.7}
.side-link:hover .side-dot{opacity:1;box-shadow:0 0 8px var(--gold-light)}
.side-cta{color:var(--gold-light)!important;font-weight:600}
.side-foot{margin-top:34px;font-size:12px;color:rgba(255,255,255,.5);letter-spacing:2px}

.hero-main{position:relative;z-index:2;flex:1;padding:40px 56px;text-align:left;display:flex;flex-direction:column;justify-content:center;align-items:flex-start}
.hero-eyebrow{letter-spacing:6px;color:var(--gold-light);font-size:13px;margin-bottom:18px}
.hero-title{font-size:58px;line-height:1.15;letter-spacing:3px;font-weight:700;margin-bottom:20px;text-shadow:0 2px 16px rgba(0,0,0,.35)}
.hero-desc{font-size:17px;opacity:.95;margin-bottom:32px;line-height:1.9}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.scroll-hint{position:absolute;right:26px;bottom:22px;z-index:2;font-size:10px;letter-spacing:3px;color:rgba(255,255,255,.5);display:flex;flex-direction:column;align-items:center;gap:8px}
.scroll-hint span{width:1px;height:34px;background:linear-gradient(rgba(255,255,255,.5),transparent)}

/* ===== 服务板块卡片 ===== */
.section-cards{padding:64px 18px}
.sec-title{text-align:center;font-size:26px;color:var(--brown-deep);margin-bottom:34px;position:relative;letter-spacing:2px}
.sec-title:after{content:"";display:block;width:56px;height:3px;background:var(--gold);margin:12px auto 0;border-radius:2px}
.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.card{background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 6px 22px rgba(90,58,31,.08);transition:.35s;display:flex;flex-direction:row;min-height:150px}
.card:hover{transform:translateY(-6px);box-shadow:0 14px 32px rgba(201,162,75,.28)}
.card-icon-wrap{width:150px;flex-shrink:0;background:linear-gradient(135deg,var(--brown),var(--brown-deep));display:flex;align-items:center;justify-content:center;color:var(--gold-light);overflow:hidden}
.card-icon-wrap img{width:100%;height:100%;object-fit:cover}
.svc-svg{width:52px;height:52px}
.card-body{padding:20px 22px;flex:1;display:flex;flex-direction:column;justify-content:center}
.card-body h3{color:var(--brown-deep);margin-bottom:8px;font-size:19px;letter-spacing:1px}
.card-body p{font-size:14px;color:#777;flex:1;line-height:1.7}
.card-more{color:var(--gold);font-size:13px;margin-top:12px;font-weight:600}

/* ===== 联系横幅 ===== */
.contact-banner{padding:0 18px 60px}
.contact-banner-inner{background:linear-gradient(135deg,var(--brown),var(--brown-deep));color:#fff;border-radius:18px;padding:46px 24px;text-align:center}
.contact-banner-inner h2{font-size:24px;margin-bottom:10px;letter-spacing:1px}
.contact-banner-inner p{opacity:.9;margin-bottom:22px}

/* ===== 板块详情 ===== */
.section-detail{padding:36px 18px 56px}
.detail-head{height:260px;border-radius:16px;background:center/cover no-repeat #ddd;position:relative;overflow:hidden;display:flex;align-items:flex-end}
.detail-head-mask{background:linear-gradient(transparent,rgba(61,39,20,.85));width:100%;padding:30px 24px 20px;color:#fff}
.detail-head-mask h1{font-size:28px;margin-bottom:6px;letter-spacing:2px}
.detail-head-mask p{opacity:.95;font-size:15px}
.detail-body{background:#fff;border-radius:0 0 16px 16px;padding:30px;box-shadow:0 6px 20px rgba(90,58,31,.06)}
.detail-body .doc{line-height:1.9;color:#444}
.detail-body .doc img{max-width:100%}
.empty-tip{color:#888;background:var(--cream);padding:24px;border-radius:10px;text-align:center}
.empty-tip a{color:var(--gold)}
.detail-cta{text-align:center;margin-top:26px}

/* ===== 联系页面 ===== */
.contact-page{padding:40px 18px 60px}
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:36px;align-items:start}
.contact-qr{text-align:center;background:#fff;border-radius:16px;padding:30px;box-shadow:0 6px 20px rgba(90,58,31,.06)}
.qr-box{width:220px;height:220px;margin:0 auto 16px;border:4px solid var(--gold);border-radius:12px;display:flex;align-items:center;justify-content:center;background:var(--cream);overflow:hidden}
.qr-box img{width:100%;height:100%;object-fit:cover}
.qr-placeholder{color:#b08d4a;font-size:14px;line-height:1.8}
.qr-tip{color:var(--brown-deep);font-weight:600;margin-bottom:6px;letter-spacing:1px}
.wx-id{color:#777;font-size:14px}
.inquiry-form{background:#fff;border-radius:16px;padding:28px;box-shadow:0 6px 20px rgba(90,58,31,.06);display:flex;flex-direction:column;gap:12px}
.inquiry-form h3{color:var(--brown-deep);font-size:20px;letter-spacing:1px}
.form-tip{font-size:13px;color:#999}
.inquiry-form label{display:flex;flex-direction:column;font-size:14px;color:#555;gap:5px}
.inquiry-form input,.inquiry-form select,.inquiry-form textarea{font:inherit;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--cream);transition:.2s}
.inquiry-form input:focus,.inquiry-form select:focus,.inquiry-form textarea:focus{border-color:var(--gold);outline:none;background:#fff}
.form-msg{margin-top:10px;font-size:14px}.form-msg.success{color:#2e7d32}.form-msg.error{color:#c62828}.form-msg.info{color:#8a6d3b}

/* ===== 页脚 ===== */
.site-footer{background:var(--brown-deep);color:rgba(255,255,255,.8);text-align:center;padding:26px 18px;font-size:14px;margin-top:30px}
.site-footer a{color:var(--gold-light)}
.foot-contact{margin-top:6px;font-size:13px}

/* ===== 响应式 ===== */
@media(max-width:900px){
  .hero-title{font-size:44px}
  .side-menu{width:240px;padding:30px 20px}
}
@media(max-width:720px){
  .hero{flex-direction:column;min-height:auto}
  .side-menu{width:100%;flex-direction:row;flex-wrap:wrap;align-items:center;padding:16px 18px;gap:8px;border-right:none;border-bottom:1px solid rgba(255,255,255,.08)}
  .side-brand{margin-bottom:0;margin-right:auto}
  .side-foot{display:none}
  .side-nav{flex-direction:row;flex-wrap:wrap;gap:4px;width:100%;margin-top:8px}
  .side-link{padding:8px 10px;font-size:14px;border-bottom:none;border-radius:16px;background:rgba(255,255,255,.06)}
  .hero-main{padding:40px 22px;align-items:center;text-align:center}
  .hero-title{font-size:34px}
  .cards{grid-template-columns:repeat(2,1fr);gap:12px}
  .card{flex-direction:column;min-height:auto}
  .card-icon-wrap{width:100%;height:110px}
  .svc-svg{width:40px;height:40px}
}
@media(max-width:480px){
  .menu-toggle{display:block}
  .main-nav{display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;background:rgba(61,39,20,.98);padding:14px}
  .main-nav.open{display:flex}
  .main-nav a{width:100%;text-align:center;padding:12px}
  .cards{grid-template-columns:1fr}
  .hero-title{font-size:28px}
  .contact-grid{grid-template-columns:1fr}
}