:root{
  --navy:#0B1F3A;--navy-2:#0E2A4D;--blue:#1E5EFF;--gold:#DFB43F;--gold-soft:#E8C766;
  --paper:#F5F7FA;--paper-2:#EDF1F7;--line:rgba(16,35,63,.10);
  --ink:#10233F;--ink-2:#5A6B85;--ink-3:#8A97AC;
  --serif:'Noto Serif SC',Georgia,'Songti SC','SimSun',serif;
  --sans:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:var(--sans);color:var(--ink);background:#fff;line-height:1.6;-webkit-font-smoothing:antialiased;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
.wrap{max-width:1160px;margin:0 auto;padding:0 24px;}
section{position:relative;}
.sign-stroke{display:inline-block;width:22px;height:22px;vertical-align:middle;}

/* 导航 */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(11,31,58,.94);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.08);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px;}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;letter-spacing:.5px;}
.brand .brand-cn{font-family:var(--serif);}
.brand .brand-tag{font-size:10px;font-weight:400;color:var(--gold-soft);border:1px solid rgba(232,199,102,.5);border-radius:999px;padding:1px 8px;letter-spacing:1px;}
.nav-links{display:flex;align-items:center;gap:20px;}
.nav-links a{color:rgba(255,255,255,.82);font-size:14px;transition:color .2s;}
.nav-links a:hover{color:#fff;}
.nav-links a.cur{color:var(--gold-soft);}
.nav-links .has-sub{position:relative;}
.nav-links .sub{display:none;position:absolute;top:calc(100% + 10px);left:50%;transform:translateX(-50%);background:#fff;border-radius:10px;box-shadow:0 14px 36px rgba(11,31,58,.16);padding:0;min-width:176px;z-index:50;}
.nav-links .has-sub:hover .sub{display:block;}
.nav-links .sub a{display:block;color:var(--ink);font-size:13px;padding:9px 12px;border-radius:7px;}
.nav-links .sub a:hover{color:var(--blue);}
.nav-links .sub a .en{color:var(--ink-3);font-size:11px;display:block;margin-top:1px;}
    .nav-ctas{display:flex;align-items:center;gap:8px;}
    .nav-cta{background:var(--gold);color:#1a1403!important;font-weight:700;padding:8px 14px;border-radius:6px;font-size:13px;white-space:nowrap;transition:background .2s;}
    .nav-cta:hover{background:var(--gold-soft);color:#1a1403!important;}
    .nav-cta.ghost{background:transparent;border:1px solid rgba(232,199,102,.55);color:var(--gold-soft)!important;}
    .nav-cta.ghost:hover{background:rgba(232,199,102,.14);color:#fff!important;}
.nav-cta:hover{background:var(--gold-soft);color:#1a1403!important;}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:0;}
.nav-toggle span{display:block;width:22px;height:2px;background:#fff;margin:5px 0;border-radius:2px;}

/* Hero */
.hero{min-height:420px;display:flex;align-items:center;background:linear-gradient(135deg,rgba(11,31,58,.94) 0%,rgba(14,42,77,.88) 55%,rgba(20,53,94,.76) 100%),url('../images/hero-about.jpg') center/cover no-repeat;color:#fff;overflow:hidden;}
.hero-deco{position:absolute;right:-60px;top:50%;transform:translateY(-50%);opacity:.12;}
.hero-deco svg{width:520px;height:520px;}
.hero .wrap{width:100%;position:relative;z-index:2;padding-top:110px;padding-bottom:80px;}
.hero .crumb{font-size:13px;color:rgba(255,255,255,.6);margin-bottom:26px;}
.hero .crumb a{color:rgba(255,255,255,.6);}
.hero .crumb a:hover{color:#fff;}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:13px;letter-spacing:3px;color:var(--gold-soft);margin-bottom:20px;}
.hero h1{font-family:var(--serif);font-size:44px;font-weight:900;line-height:1.25;}
.hero h1 .gold{color:var(--gold-soft);}
.hero .sub{font-size:16.5px;color:rgba(255,255,255,.82);max-width:680px;margin-top:18px;font-weight:300;}
.hero .sub b{color:#fff;font-weight:700;}

/* 章节 */
.sec{padding:86px 0;}
#company.sec,#certum.sec,#authority.sec,#timeline.sec{padding-bottom:0;}
.sec-head{max-width:740px;margin-bottom:46px;}
.sec-kicker{display:flex;align-items:center;gap:12px;font-size:13px;letter-spacing:3px;color:var(--blue);font-weight:700;margin-bottom:16px;}
.sec-head h2{font-family:var(--serif);font-size:31px;font-weight:900;line-height:1.35;}
.sec-head .lead{font-size:15px;color:var(--ink-2);margin-top:12px;}
.bg-paper{}
.center{text-align:center;}

/* 公司介绍 */
.co-intro{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center;}
.co-intro .co-text p{font-size:15px;color:var(--ink-2);margin-bottom:14px;}
.co-intro .co-text p b{color:var(--ink);}
.co-facts{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;}
.co-fact{border:1px solid var(--line);border-radius:12px;padding:18px 16px;text-align:center;}
.co-fact .n{font-family:var(--serif);font-size:24px;font-weight:900;color:var(--blue);}
.co-fact .l{font-size:12px;color:var(--ink-2);margin-top:4px;}

/* 介绍卡 */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:28px;transition:transform .2s,box-shadow .2s;}
.card:hover{transform:translateY(-3px);box-shadow:0 14px 34px rgba(16,35,63,.08);}
.card .c-ic{width:48px;height:48px;border-radius:12px;background:linear-gradient(135deg,#0E2A4D,#1E5EFF);display:flex;align-items:center;justify-content:center;margin-bottom:16px;}
.card .c-ic svg{width:26px;height:26px;color:#fff;}
.card h3{font-size:16px;font-weight:700;}
.card .en{font-size:12px;color:var(--ink-3);letter-spacing:1px;margin-top:2px;}
.card p{font-size:13px;color:var(--ink-2);margin-top:10px;}

/* 权威性 */
.authority{background:linear-gradient(135deg,#0B1F3A 0%,#14355E 100%);border-radius:20px;color:#fff;padding:52px 46px;overflow:hidden;position:relative;}
.authority::after{content:"";position:absolute;right:-70px;top:-70px;width:280px;height:280px;border:2px solid rgba(232,199,102,.25);border-radius:50%;}
.authority .a-badge{display:inline-flex;align-items:center;gap:12px;background:rgba(223,180,63,.16);border:1px solid rgba(232,199,102,.45);color:var(--gold-soft);font-size:13px;font-weight:700;letter-spacing:2px;border-radius:999px;padding:8px 20px;margin-bottom:22px;}
.authority .a-badge svg{width:18px;height:18px;}
.authority h3{font-family:var(--serif);font-size:29px;font-weight:900;line-height:1.4;}
.authority h3 .hl{color:var(--gold-soft);}
.authority p{font-size:15px;color:rgba(255,255,255,.82);max-width:820px;margin-top:16px;}
.authority .a-points{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px;margin-top:30px;}
.authority .a-p{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:18px 18px;display:flex;gap:12px;align-items:flex-start;}
.authority .a-p svg{width:20px;height:20px;flex:none;color:var(--gold-soft);margin-top:2px;}
.authority .a-p b{display:block;font-size:14px;margin-bottom:3px;}
.authority .a-p span{font-size:12px;color:rgba(255,255,255,.68);}

/* 时间线 */
.tl{position:relative;padding-left:34px;}
.tl::before{content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,var(--gold),rgba(223,180,63,.15));}
.tl-item{position:relative;padding:0 0 34px 0;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{content:"";position:absolute;left:-31px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--navy);border:3px solid var(--gold-soft);}
.tl-item .y{font-family:var(--serif);font-size:17px;font-weight:900;color:var(--blue);}
.tl-item .y .ph{color:var(--gold);}
.tl-item h4{font-size:16px;font-weight:700;margin-top:3px;}
.tl-item p{font-size:13px;color:var(--ink-2);margin-top:5px;max-width:640px;}
.tl-item .tag{display:inline-block;font-size:11px;color:var(--gold);border:1px solid rgba(223,180,63,.5);border-radius:999px;padding:1px 10px;margin-bottom:6px;letter-spacing:1px;}
.tl-col{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:40px;}

/* 底部 */
.foot{background:var(--navy);color:rgba(255,255,255,.75);}
.foot-cta{text-align:center;padding:70px 0 54px;border-bottom:1px solid rgba(255,255,255,.08);}
.foot-cta h2{font-family:var(--serif);font-size:29px;font-weight:900;color:#fff;}
.foot-cta p{font-size:15px;color:rgba(255,255,255,.72);margin-top:14px;max-width:640px;margin-left:auto;margin-right:auto;}
.foot-cta .btn{margin-top:30px;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:700;padding:14px 30px;border-radius:8px;cursor:pointer;border:0;transition:transform .15s,background .2s,box-shadow .2s;}
.btn-gold{background:var(--gold);color:#1a1403;}
.btn-gold:hover{background:var(--gold-soft);transform:translateY(-1px);box-shadow:0 8px 22px rgba(223,180,63,.35);}
.btn-ghost{background:rgba(255,255,255,.06);color:#fff;border:1px solid rgba(255,255,255,.35);}
.btn-ghost:hover{background:rgba(255,255,255,.14);}
.foot-main{padding:46px 0 34px;display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:34px;}
.foot h4{color:#fff;font-size:14px;font-weight:700;letter-spacing:1px;margin-bottom:16px;}
.foot ul{list-style:none;display:flex;flex-direction:column;gap:9px;font-size:13px;}
.foot a:hover{color:#fff;}
.foot .f-brand{font-family:var(--serif);font-size:19px;font-weight:900;color:#fff;}
.foot .f-desc{font-size:13px;color:rgba(255,255,255,.62);margin-top:12px;max-width:300px;}
.foot .f-tel{font-family:var(--serif);font-size:24px;font-weight:900;color:var(--gold-soft);margin-top:16px;}
.foot-bottom{text-align:center;padding:20px 0;font-size:12px;color:rgba(255,255,255,.45);border-top:1px solid rgba(255,255,255,.08);}

/* 悬浮按钮 */
.float-bar{position:fixed;right:18px;top:50%;transform:translateY(-50%);z-index:300;display:flex;flex-direction:column;gap:10px;}
.fbtn{position:relative;width:46px;height:46px;border-radius:14px;background:linear-gradient(145deg,#12294A,#0B1F3A);border:1px solid rgba(232,199,102,.4);color:var(--gold-soft);display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 8px 22px rgba(11,31,58,.4),inset 0 1px 0 rgba(255,255,255,.08);transition:transform .18s,background .2s,box-shadow .2s,color .2s;padding:0;}
.fbtn svg{width:24px;height:24px;}
.fbtn:hover{background:linear-gradient(145deg,#E8C766,#DFB43F);border-color:transparent;color:#1a1403;transform:translateX(-5px);box-shadow:0 12px 26px rgba(223,180,63,.35);}
.fbtn.gold{background:linear-gradient(145deg,#E8C766,#DFB43F);border-color:transparent;color:#1a1403;}
.fbtn.gold:hover{background:linear-gradient(145deg,#F2D88C,#E8C766);box-shadow:0 12px 26px rgba(223,180,63,.4);transform:translateX(-5px);}
.fbtn .tip{position:absolute;right:58px;top:50%;transform:translateY(-50%);white-space:nowrap;background:#fff;color:var(--ink);font-size:12px;font-weight:600;border:1px solid var(--line);border-radius:8px;padding:6px 12px;opacity:0;pointer-events:none;transition:opacity .2s;box-shadow:0 8px 20px rgba(11,31,58,.14);}
.fbtn .tip::after{content:"";position:absolute;left:100%;top:50%;transform:translateY(-50%);border:5px solid transparent;border-left-color:#fff;}
.fbtn:hover .tip{opacity:1;}
.float-pop{position:fixed;right:74px;top:50%;transform:translateY(-50%);z-index:310;width:230px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:0 18px 44px rgba(11,31,58,.2);padding:20px;display:none;}
.float-pop.open{display:block;}
.float-pop .p-t{font-size:14px;font-weight:700;display:flex;align-items:center;gap:8px;margin-bottom:10px;}
.float-pop .p-t svg{width:18px;height:18px;color:var(--gold);}
.float-pop .p-c{font-size:13px;color:var(--ink-2);line-height:1.7;text-align:center;}
.float-pop .p-c b{color:var(--ink);font-size:15px;display:block;margin-top:4px;}
.float-pop .p-close{position:absolute;top:10px;right:12px;background:none;border:0;cursor:pointer;color:var(--ink-3);font-size:16px;line-height:1;padding:4px;}
.float-pop .p-qr{width:150px;height:150px;margin:12px auto 2px;border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--ink-3);font-size:12px;text-align:center;padding:0;}
.float-pop .p-qr img{width:100%;height:100%;object-fit:contain;border-radius:10px;display:block;}

/* 电话弹层：与电话按钮水平对齐 + 图标+号码 */
.float-pop .p-tel{display:flex;flex-direction:column;align-items:center;gap:10px;padding:6px 0 2px;}
.float-pop .p-tel svg{width:38px;height:38px;color:var(--gold);}
.float-pop .p-tel b{font-size:17px;letter-spacing:.5px;}
#popTel{top:calc(50% - 84px);transform:translateY(-50%);}

  .qa-shot{position:relative;height:300px;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:16px;margin-bottom:20px;cursor:zoom-in;}
.qa-shot img{width:100%;height:unset;object-fit:cover;object-position:center;display:block;transition:transform .28s;}
.qa-shot:hover img{transform:scale(1.045);}
.qa-shot::after{content:"点击查看大图";position:absolute;right:8px;bottom:8px;font-size:11px;color:#fff;background:rgba(11,31,58,.55);border:1px solid rgba(255,255,255,.22);border-radius:999px;padding:3px 10px;letter-spacing:.5px;opacity:.92;pointer-events:none;}
.addr-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.addr-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px 22px;text-align:center;transition:transform .2s,box-shadow .2s;}
.addr-card:hover{transform:translateY(-3px);box-shadow:0 14px 34px rgba(16,35,63,.08);}
.addr-card .a-ic{width:46px;height:46px;margin:0 auto 14px;border-radius:12px;background:rgba(223,180,63,.14);display:flex;align-items:center;justify-content:center;}
.addr-card .a-ic svg{width:23px;height:23px;color:var(--gold);}
.addr-card .a-t{font-size:12px;color:var(--ink-2);letter-spacing:1px;}
.addr-card .a-v{font-size:14px;font-weight:700;color:var(--ink);margin-top:6px;line-height:1.6;}
.addr-note{margin-top:20px;text-align:center;font-size:13px;color:var(--ink-2);background:var(--paper-2);border:1px dashed var(--line);border-radius:12px;padding:14px 20px;}

@media (max-width:768px){
  .nav-links{position:fixed;top:64px;left:0;right:0;background:var(--navy);flex-direction:column;align-items:stretch;padding:18px 24px 26px;gap:16px;display:none;border-bottom:1px solid rgba(255,255,255,.1);}
  .nav-links.open{display:flex;}
  .nav-links .sub{position:static;transform:none;box-shadow:none;background:rgba(255,255,255,.06);min-width:0;margin-top:8px;}
  .nav-links .sub a{color:rgba(255,255,255,.85);}
  .nav-links .sub a .en{color:rgba(255,255,255,.5);}    .nav-ctas{flex-wrap:wrap;justify-content:center;width:100%;}
    .nav-cta{text-align:center;}
  .nav-toggle{display:block;}
  .hero h1{font-size:30px;}
  .hero .sub{font-size:15px;}
  .sec{padding:58px 0;}
  .sec-head h2{font-size:20px;}
  .co-intro{grid-template-columns:1fr;gap:28px;}
  .cards{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;}
  .qa-shot{position:relative;height:300px;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:16px;margin-bottom:20px;cursor:zoom-in;}
.qa-shot img{width:100%;height:unset;object-fit:cover;object-position:center;display:block;transition:transform .28s;}
.qa-shot:hover img{transform:scale(1.045);}
.qa-shot::after{content:"点击查看大图";position:absolute;right:8px;bottom:8px;font-size:11px;color:#fff;background:rgba(11,31,58,.55);border:1px solid rgba(255,255,255,.22);border-radius:999px;padding:3px 10px;letter-spacing:.5px;opacity:.92;pointer-events:none;}
.addr-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.addr-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px 22px;text-align:center;transition:transform .2s,box-shadow .2s;}
.addr-card:hover{transform:translateY(-3px);box-shadow:0 14px 34px rgba(16,35,63,.08);}
.addr-card .a-ic{width:46px;height:46px;margin:0 auto 14px;border-radius:12px;background:rgba(223,180,63,.14);display:flex;align-items:center;justify-content:center;}
.addr-card .a-ic svg{width:23px;height:23px;color:var(--gold);}
.addr-card .a-t{font-size:12px;color:var(--ink-2);letter-spacing:1px;}
.addr-card .a-v{font-size:14px;font-weight:700;color:var(--ink);margin-top:6px;line-height:1.6;}
.addr-note{margin-top:20px;text-align:center;font-size:13px;color:var(--ink-2);background:var(--paper-2);border:1px dashed var(--line);border-radius:12px;padding:14px 20px;}

@media (max-width:768px){
  .addr-grid{grid-template-columns:repeat(2,1fr);gap:12px;}
  .addr-card{padding:20px 16px;}
}
.authority{padding:34px 24px;}
  .authority h3{font-size:23px;}
  .foot-cta h2{font-size:23px;}
  .float-bar{right:10px;gap:8px;}

  #popTel{top:calc(50% - 75px);}
  .fbtn{width:42px;height:42px;border-radius:12px;}
  .float-pop{right:60px;width:200px;}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto;}*{transition:none!important;}}

.cs-modal{position:fixed;inset:0;z-index:700;background:rgba(6,15,30,.9);display:flex;align-items:center;justify-content:center;padding:24px;opacity:0;pointer-events:none;transition:opacity .25s;}
.cs-modal.open{opacity:1;pointer-events:auto;}
.cs-box{position:relative;width:460px;max-width:100%;background:#fff;border-radius:18px;padding:32px 34px 28px;box-shadow:0 24px 80px rgba(0,0,0,.45);}
.cs-close{position:absolute;top:14px;right:16px;width:36px;height:36px;border-radius:50%;border:1px solid var(--line);color:var(--ink-2);font-size:20px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s,color .2s;}
.cs-close:hover{background:#FBE9C8;color:#8A6D14;}
.cs-head{text-align:center;}
.cs-head svg{width:40px;height:40px;background:rgba(223,180,63,.16);border-radius:12px;padding:9px;box-sizing:content-box;}
.cs-head h4{font-family:var(--serif);font-size:21px;font-weight:900;color:var(--ink);margin-top:12px;}
.cs-head p{font-size:13px;color:var(--ink-2);margin-top:6px;}
.cs-qrs{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:24px;}
.cs-qr{text-align:center;}
.qr-ph{aspect-ratio:1;border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--ink-3);font-size:13px;}
.qr-ph img{width:100%;height:100%;object-fit:contain;border-radius:10px;display:block;}
.cs-qr .qr-l{margin-top:8px;font-size:13px;color:var(--ink-2);}
.cs-tel{margin-top:22px;text-align:center;font-size:14px;color:var(--ink-2);border-radius:10px;padding:12px;}
.cs-tel a{color:var(--blue);font-weight:700;}

/* ===== 截图大图弹层（lightbox）===== */
.lightbox{position:fixed;top:0;left:0;right:0;bottom:0;z-index:600;background:rgba(6,15,30,.9);display:none;align-items:center;justify-content:center;padding:24px;}
.lightbox.open{display:flex;}
.lb-close{position:absolute;top:18px;right:24px;width:44px;height:44px;border-radius:50%;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);color:#fff;font-size:26px;line-height:1;cursor:pointer;z-index:2;display:flex;align-items:center;justify-content:center;transition:background .2s;}
.lb-close:hover{background:rgba(255,255,255,.22);}
.lightbox img{max-width:96%;max-height:92vh;border-radius:12px;box-shadow:0 24px 80px rgba(0,0,0,.5);object-fit:contain;background:#fff;}