/* ============================================================
   site17 — 专业商务风（藏青 + 米金 · 分栏企业框架）
   ============================================================ */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;background:#fff;color:#20242e;line-height:1.75}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
.wrap{width:min(1140px,92%);margin:0 auto}
.section{padding:70px 0}
.section.alt{background:#f4f6fa}
.kicker{font-size:12px;letter-spacing:.26em;color:#b08b4a;font-weight:700;margin-bottom:10px}
.section h2{font-size:30px;margin-bottom:16px}
.note{font-size:13px;color:#7c828e}

/* 年龄提示条 */
.age-bar{position:sticky;top:0;z-index:60;display:flex;gap:14px;align-items:center;justify-content:center;flex-wrap:wrap;background:#101a2e;color:#e7ecf4;font-size:13px;padding:9px 14px;text-align:center}
.age-bar button{border:none;cursor:pointer;background:#c9a25e;color:#16233f;font-weight:700;font-size:13px;padding:5px 14px;border-radius:6px}

/* 顶部信息条 */
.topbar{background:#16233f;color:#c8d0de;font-size:12px}
.topbar .wrap{display:flex;justify-content:space-between;gap:12px;padding:8px 0;flex-wrap:wrap}

/* 头部导航 */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);border-bottom:1px solid #e7eaf0;backdrop-filter:blur(8px)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 0}
.brand{display:flex;align-items:baseline;gap:10px}
.brand b{font-size:22px;color:#16233f}
.brand span{font-size:13px;color:#6b7280;display:flex;flex-direction:column;line-height:1.25}
.brand small{font-size:10px;letter-spacing:.26em;color:#c9a25e}
.menu-toggle{display:none;background:none;border:1px solid #d8dde6;border-radius:8px;font-size:18px;padding:4px 10px;cursor:pointer}
.site-header nav{display:flex;gap:20px;font-size:14px}
.site-header nav a{color:#3a4150;padding:6px 2px;border-bottom:2px solid transparent}
.site-header nav a:hover{color:#c9a25e;border-color:#c9a25e}

/* 面包屑 */
.breadcrumb{padding:16px 0 0;font-size:13px;color:#7c828e;display:flex;gap:8px}
.breadcrumb a:hover{color:#c9a25e}

/* Hero 分栏 */
.hero{background:linear-gradient(135deg,#16233f 0%,#1f3257 100%);color:#fff}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;padding:64px 0}
.hero .kicker{color:#e6c687}
.hero h1{font-size:36px;line-height:1.3;margin-bottom:14px}
.hero .lead{color:#d7deea;font-size:15px}
.hero .sub{color:#aeb9cc;font-size:13px;margin-top:10px}
.hero-actions{display:flex;gap:14px;margin-top:24px;flex-wrap:wrap}
.btn{display:inline-block;padding:12px 26px;border-radius:8px;font-size:14px;transition:.25s;border:1px solid transparent;cursor:pointer}
.btn.primary{background:#c9a25e;color:#16233f;font-weight:700}
.btn.primary:hover{background:#dbb678}
.btn.ghost{border-color:#4a5c7d;color:#e7ecf4}
.btn.ghost:hover{border-color:#c9a25e;color:#e6c687}
.hero-panel img{border-radius:12px;box-shadow:0 30px 70px -30px rgba(0,0,0,.55)}

/* 企业数据 */
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;background:#fff;border:1px solid #e7eaf0;border-radius:14px;padding:28px;box-shadow:0 20px 50px -35px rgba(22,35,63,.5);margin-bottom:12px}
.stat{text-align:center}
.stat b{display:block;font-size:30px;color:#16233f}
.stat span{font-size:13px;color:#7c828e}

/* 产品线行式列表 */
.prod-list{display:grid;gap:14px;margin-top:8px}
.prod-row{display:grid;grid-template-columns:64px 1fr auto;gap:18px;align-items:center;background:#fff;border:1px solid #e7eaf0;border-radius:12px;padding:20px 24px}
.prod-row .no{font-size:26px;font-weight:800;color:#c9a25e}
.prod-row h3{font-size:17px}
.prod-row p{font-size:14px;color:#6b7280}
.prod-row a{font-size:13px;color:#16233f;border:1px solid #d8dde6;padding:8px 16px;border-radius:8px;white-space:nowrap}
.prod-row a:hover{background:#16233f;color:#fff;border-color:#16233f}

/* 时间轴 */
.timeline{margin-top:8px;border-left:2px solid #e8ddc4;padding-left:26px;display:grid;gap:22px}
.tl-item{position:relative}
.tl-item::before{content:"";position:absolute;left:-33px;top:7px;width:12px;height:12px;border-radius:50%;background:#c9a25e;box-shadow:0 0 0 4px #f6efdd}
.tl-item h3{font-size:16px}
.tl-item p{font-size:14px;color:#6b7280}

/* 评价轮播 */
.reviews-viewport{overflow:hidden;margin-top:14px}
.reviews-track{display:flex;transition:transform .5s ease}
.rev-slide{min-width:100%;background:#fff;border:1px solid #e7eaf0;border-radius:14px;padding:30px}
.rev-slide p{font-size:15px;color:#3a4150}
.rev-slide footer{margin-top:14px;font-size:13px;color:#7c828e}
.reviews-dots{display:flex;gap:8px;justify-content:center;margin-top:16px}
.reviews-dots button{width:9px;height:9px;border-radius:50%;border:none;background:#d5dae3;cursor:pointer}
.reviews-dots button.on{background:#c9a25e}

/* FAQ 两栏 */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:8px}
.faq-item{background:#fff;border:1px solid #e7eaf0;border-radius:12px;padding:16px 20px;cursor:pointer}
.faq-item h3{font-size:15px;display:flex;justify-content:space-between;align-items:center}
.faq-item h3::after{content:"+";color:#c9a25e;font-weight:700}
.faq-item p{font-size:14px;color:#6b7280;max-height:0;overflow:hidden;transition:max-height .3s,padding .3s}
.faq-item.open p{max-height:220px;padding-top:10px}
.faq-item.open h3::after{content:"−"}

/* 商务联系深色盒 */
.contact-box{background:#16233f;color:#e7ecf4;border-radius:16px;padding:40px;display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:start}
.contact-box h2{color:#fff}
.contact-box .kicker{color:#e6c687}
.contact-info{list-style:none;margin:12px 0}
.contact-info li{font-size:14px;color:#c2cbdb;margin-bottom:8px}
.contact-form{display:grid;gap:14px}
.contact-form label{font-size:13px;color:#c2cbdb;display:grid;gap:6px}
.contact-form input,.contact-form textarea{border:1px solid #35496e;background:#1f3257;border-radius:8px;padding:11px 12px;font-size:14px;font-family:inherit;color:#fff;outline:none;resize:vertical}
.contact-form input:focus,.contact-form textarea:focus{border-color:#c9a25e}
.contact-form .err{border-color:#e15b7d!important}
.form-tip{font-size:13px;color:#8fd6ae}

/* 页脚四栏 */
.site-footer{background:#101a2e;color:#8d97a8;padding:46px 0 26px;font-size:13px}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:28px}
.foot-grid h4{color:#d9e0ea;font-size:14px;margin-bottom:10px}
.foot-grid p{font-size:13px}
.foot-grid a{display:block;margin-bottom:7px}
.foot-grid a:hover{color:#c9a25e}
.site-footer .legal{border-top:1px solid #22304b;margin-top:26px;padding-top:16px;font-size:12px;color:#66718a;text-align:center}

/* 响应式 */
@media (max-width:980px){
  .hero .wrap{grid-template-columns:1fr;padding:48px 0}
  .stats-row{grid-template-columns:repeat(2,1fr)}
  .faq-grid{grid-template-columns:1fr}
  .contact-box{grid-template-columns:1fr;padding:28px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .prod-row{grid-template-columns:48px 1fr;grid-auto-rows:auto}
  .prod-row a{grid-column:2;justify-self:start}
}
@media (max-width:720px){
  .menu-toggle{display:block}
  .site-header nav{position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;gap:0;padding:8px 4%;border-bottom:1px solid #e7eaf0;display:none}
  .site-header nav.open{display:flex}
  .site-header nav a{padding:12px 0;border-bottom:1px solid #f0f2f6}
  .section{padding:52px 0}
  .hero h1{font-size:27px}
  .stats-row{grid-template-columns:1fr 1fr;padding:20px}
  .foot-grid{grid-template-columns:1fr}
}