/* ============ 基础 ============ */
:root{
  --brand:#2B6CF7;
  --brand-2:#5B8DEF;
  --brand-dark:#1A4FD6;
  --brand-deep:#0E3AAE;
  --brand-light:#EAF1FF;
  --brand-lighter:#F5F8FF;
  --ink:#0D1B33;
  --ink-2:#48566E;
  --ink-3:#8794AB;
  --bg:#FFFFFF;
  --bg-2:#F6F9FE;
  --line:#E6EDF9;
  --ok:#00B98D;
  --warn:#FF8A3D;
  --radius:16px;
  --radius-lg:24px;
  --shadow-sm:0 2px 8px rgba(13,27,51,.05);
  --shadow:0 8px 28px rgba(13,27,51,.08);
  --shadow-lg:0 20px 60px rgba(13,27,51,.12);
  --maxw:1200px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",Roboto,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.center{text-align:center}

/* ============ 通用组件 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 30px;border-radius:999px;font-size:16px;font-weight:600;
  cursor:pointer;border:none;transition:all .25s ease;white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#fff;box-shadow:0 8px 22px rgba(43,108,247,.32);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(43,108,247,.42)}
.btn-ghost{background:#fff;color:var(--brand);border:1.5px solid var(--line)}
.btn-ghost:hover{border-color:var(--brand);background:var(--brand-lighter)}
.btn-white{background:#fff;color:var(--brand);box-shadow:var(--shadow)}
.btn-white:hover{transform:translateY(-2px)}
.btn-outline-white{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.5)}
.btn-outline-white:hover{background:rgba(255,255,255,.12);border-color:#fff}

.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--brand);background:var(--brand-light);
  padding:6px 16px;border-radius:999px;margin-bottom:18px;
}
.sec{padding:96px 0}
.sec-sm{padding:64px 0}
.sec-bg{background:var(--bg-2)}
.sec-title{font-size:40px;font-weight:800;letter-spacing:-.02em;line-height:1.25;margin-bottom:16px}
.sec-sub{font-size:17px;color:var(--ink-2);max-width:720px;margin:0 auto}
.sec-head{margin-bottom:56px}
/* 锚点定位时给固定导航留出空间 */
section[id],header[id]{scroll-margin-top:88px}

/* ============ 咨询弹窗 ============ */
#agentMask{position:fixed;inset:0;z-index:9999;background:rgba(10,20,40,.55);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);display:none;align-items:center;justify-content:center;padding:20px}
#agentMask.on{display:flex;animation:agFade .22s ease}
@keyframes agFade{from{opacity:0}}
#agentCard{background:#fff;border-radius:20px;width:100%;max-width:380px;box-shadow:0 30px 80px rgba(0,0,0,.32);position:relative;overflow:hidden;animation:agUp .3s cubic-bezier(.2,.9,.3,1)}
@keyframes agUp{from{transform:translateY(20px);opacity:0}}
#agentCard .ag-top{background:linear-gradient(135deg,var(--brand),var(--brand-2));padding:24px 58px 20px 24px;color:#fff}
#agentCard .ag-top h3{font-size:19px;font-weight:800;margin:0 0 6px;color:#fff;line-height:1.4}
#agentCard .ag-top p{font-size:13.5px;margin:0;color:rgba(255,255,255,.9);line-height:1.5}
#agentCard .ag-close{position:absolute;top:16px;right:16px;width:28px;height:28px;border-radius:50%;background:rgba(255,255,255,.22);color:#fff;border:0;cursor:pointer;font-size:16px;line-height:1;display:flex;align-items:center;justify-content:center;padding:0}
#agentCard .ag-close:hover{background:rgba(255,255,255,.36)}
#agentCard .ag-body{padding:22px 24px 24px;text-align:center}
#agentCard .ag-qr{width:210px;height:210px;margin:0 auto 14px;border-radius:14px;border:1px solid var(--line);display:block;object-fit:contain;background:#F7F9FC}
#agentCard .ag-hint{font-size:12.5px;color:var(--ink-3);line-height:1.6}

/* ============ 代理商身份公告条 ============ */
/* ============ 导航 ============ */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(255,255,255,.85);backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;transition:all .3s;
}
.nav.scrolled{border-bottom-color:var(--line);box-shadow:0 2px 20px rgba(13,27,51,.06)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:8px;font-size:17px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.logo-mark{
  width:36px;height:36px;border-radius:11px;flex-shrink:0;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:17px;font-weight:900;
  box-shadow:0 4px 12px rgba(43,108,247,.3);
}
.logo-tag{
  font-size:11px;font-weight:600;color:var(--brand);
  background:var(--brand-light);padding:2px 8px;border-radius:6px;
}
.nav-menu{display:flex;gap:18px;align-items:center}
.nav-menu a{font-size:14px;font-weight:500;color:var(--ink-2);transition:color .2s;white-space:nowrap}
.nav-menu a:hover{color:var(--brand)}
.nav-cta{display:flex;gap:12px;align-items:center}
.nav-cta .btn{padding:10px 22px;font-size:15px}
.menu-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px}
.menu-toggle span{display:block;width:22px;height:2px;background:var(--ink);margin:5px 0;border-radius:2px;transition:.3s}

/* ============ Hero ============ */
.hero{
  padding:150px 0 90px;
  background:
    radial-gradient(900px 500px at 80% -10%,rgba(91,141,239,.16),transparent 60%),
    radial-gradient(700px 400px at 5% 10%,rgba(43,108,247,.10),transparent 55%),
    #fff;
  position:relative;overflow:hidden;
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}
.hero h1{
  font-size:54px;font-weight:900;line-height:1.16;letter-spacing:-.03em;margin-bottom:22px;
}
.hero h1 .grad{
  background:linear-gradient(120deg,var(--brand),var(--brand-2) 55%,#8B6BFF);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.hero p.lead{font-size:19px;color:var(--ink-2);margin-bottom:34px;max-width:540px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:36px}
.hero-note{font-size:13.5px;color:var(--ink-3);display:flex;align-items:center;gap:8px}
.hero-note b{color:var(--ok);font-weight:700}

/* Hero 右侧：产品界面模拟 */
.mock{
  background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);
  border:1px solid var(--line);overflow:hidden;transform:perspective(1400px) rotateY(-7deg) rotateX(3deg);
  transition:transform .6s ease;
}
.mock:hover{transform:perspective(1400px) rotateY(-3deg) rotateX(1deg)}
.mock-bar{display:flex;align-items:center;gap:7px;padding:14px 18px;border-bottom:1px solid var(--line);background:#FBFCFE}
.mock-dot{width:10px;height:10px;border-radius:50%}
.mock-dot:nth-child(1){background:#FF5F57}
.mock-dot:nth-child(2){background:#FEBC2E}
.mock-dot:nth-child(3){background:#28C840}
.mock-title{margin-left:10px;font-size:12px;color:var(--ink-3);font-weight:600}
.mock-body{padding:22px}
.mock-row{display:flex;gap:14px;margin-bottom:16px}
.mock-stat{
  flex:1;background:var(--brand-lighter);border-radius:12px;padding:16px;border:1px solid #E2EBFD;
}
.mock-stat .n{font-size:24px;font-weight:800;color:var(--brand);letter-spacing:-.02em}
.mock-stat .l{font-size:12px;color:var(--ink-3);margin-top:2px}
.mock-chart{
  height:120px;border-radius:12px;border:1px solid var(--line);
  background:linear-gradient(180deg,#F7FAFF,#fff);padding:16px;
  display:flex;align-items:flex-end;gap:8px;
}
.mock-bar-item{
  flex:1;border-radius:6px 6px 3px 3px;
  background:linear-gradient(180deg,var(--brand-2),var(--brand));
  animation:grow 1.1s cubic-bezier(.2,.8,.2,1) backwards;
}
@keyframes grow{from{height:8%!important;opacity:.3}}
.mock-list{margin-top:16px;display:flex;flex-direction:column;gap:10px}
.mock-item{display:flex;align-items:center;gap:11px;font-size:13px;color:var(--ink-2)}
.mock-ic{width:26px;height:26px;border-radius:8px;background:var(--brand-light);flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:13px}
.mock-badge{margin-left:auto;font-size:11px;font-weight:700;color:var(--ok);background:#E6F9F3;padding:3px 9px;border-radius:6px}

/* ============ 数据条 ============ */
.stats{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff}
.stats-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:44px 0}
.stat{text-align:center;position:relative}
.stat+.stat::before{content:"";position:absolute;left:0;top:12%;height:76%;width:1px;background:var(--line)}
.stat .num{font-size:42px;font-weight:900;letter-spacing:-.03em;background:linear-gradient(135deg,var(--brand),var(--brand-2));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;line-height:1.1}
.stat .num small{font-size:20px}
.stat .lab{font-size:14px;color:var(--ink-3);margin-top:6px}

/* ============ 解决方案卡片 ============ */
.sol-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.sol-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:32px 28px;transition:all .3s ease;position:relative;overflow:hidden;
}
.sol-card::after{
  content:"";position:absolute;inset:0;border-radius:var(--radius);
  background:linear-gradient(135deg,rgba(43,108,247,.04),transparent 60%);
  opacity:0;transition:opacity .3s;
}
.sol-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#D3E1FB}
.sol-card:hover::after{opacity:1}
.sol-ic{
  width:52px;height:52px;border-radius:14px;margin-bottom:20px;
  display:flex;align-items:center;justify-content:center;font-size:24px;
  background:linear-gradient(135deg,var(--brand-light),#DDE9FF);
  color:var(--brand);position:relative;z-index:1;
}
.sol-card h3{font-size:20px;font-weight:800;margin-bottom:10px;position:relative;z-index:1}
.sol-card p{font-size:14.5px;color:var(--ink-2);line-height:1.75;position:relative;z-index:1}
.sol-card .more{
  margin-top:18px;font-size:14px;font-weight:600;color:var(--brand);
  display:inline-flex;align-items:center;gap:5px;position:relative;z-index:1;
}
.sol-card:hover .more{gap:9px}

/* ============ 产品能力 Tab ============ */
.cap-tabs{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-bottom:40px}
.cap-tab{
  padding:11px 24px;border-radius:999px;font-size:15px;font-weight:600;
  background:#fff;border:1.5px solid var(--line);color:var(--ink-2);
  cursor:pointer;transition:all .22s;
}
.cap-tab:hover{border-color:var(--brand-2);color:var(--brand)}
.cap-tab.active{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(43,108,247,.3)}
.cap-panel{display:none;animation:fadeUp .45s ease}
.cap-panel.active{display:block}
@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}}
.cap-inner{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:48px;box-shadow:var(--shadow-sm);
}
.cap-inner h3{font-size:28px;font-weight:800;margin-bottom:14px;letter-spacing:-.02em}
.cap-inner .desc{font-size:16px;color:var(--ink-2);margin-bottom:26px}
.cap-list{display:flex;flex-direction:column;gap:16px}
.cap-li{display:flex;gap:13px;align-items:flex-start}
.cap-li .ck{
  width:22px;height:22px;border-radius:50%;flex-shrink:0;margin-top:2px;
  background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;
}
.cap-li .txt strong{display:block;font-size:15px;font-weight:700;margin-bottom:2px}
.cap-li .txt span{font-size:14px;color:var(--ink-3)}
.cap-visual{
  border-radius:var(--radius);min-height:280px;
  background:
    linear-gradient(135deg,rgba(43,108,247,.08),rgba(139,107,255,.06)),
    var(--brand-lighter);
  border:1px solid #E2EBFD;
  display:flex;align-items:center;justify-content:center;padding:32px;
}
.cap-visual .vs-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;width:100%}
.vs-card{background:#fff;border-radius:12px;padding:18px;box-shadow:var(--shadow-sm);border:1px solid var(--line)}
.vs-card .t{font-size:12px;color:var(--ink-3);margin-bottom:8px}
.vs-card .v{font-size:19px;font-weight:800;color:var(--brand)}
.vs-card .bar{height:6px;border-radius:4px;background:var(--line);margin-top:10px;overflow:hidden}
.vs-card .bar i{display:block;height:100%;border-radius:4px;background:linear-gradient(90deg,var(--brand),var(--brand-2))}

/* ============ 行业方案 ============ */
.ind-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.ind-card{
  position:relative;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:26px 22px;text-align:center;transition:all .28s;
}
.ind-card:hover{border-color:var(--brand-2);transform:translateY(-4px);box-shadow:var(--shadow)}
.ind-ic{
  width:48px;height:48px;margin:0 auto 14px;border-radius:13px;
  display:flex;align-items:center;justify-content:center;font-size:22px;
  background:var(--brand-light);
}
.ind-ic img{width:28px;height:28px;object-fit:contain;display:block}
.ind-card h4{font-size:16px;font-weight:700;margin-bottom:6px}
.ind-card p{font-size:13px;color:var(--ink-3);line-height:1.6}
.ind-tag{
  position:absolute;top:12px;right:12px;
  font-size:10.5px;font-weight:700;color:#fff;letter-spacing:.02em;
  background:linear-gradient(135deg,#FF6B35,#FF8A3D);
  padding:3px 9px;border-radius:999px;box-shadow:0 3px 10px rgba(255,107,53,.3);
}

/* ============ 差异化优势 ============ */
.why{
  background:linear-gradient(155deg,#0E2A66 0%,#143C96 48%,#1E52C4 100%);
  color:#fff;position:relative;overflow:hidden;
}
.why::before{
  content:"";position:absolute;width:800px;height:800px;border-radius:50%;
  background:radial-gradient(circle,rgba(91,141,239,.28),transparent 68%);
  top:-320px;right:-260px;
}
.why .sec-title,.why .sec-sub{color:#fff}
.why .sec-sub{color:rgba(255,255,255,.76)}
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;position:relative;z-index:1}
.why-card{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius);padding:30px 26px;transition:all .3s;
  backdrop-filter:blur(6px);
}
.why-card:hover{background:rgba(255,255,255,.13);transform:translateY(-5px)}
.why-card .w-ic{
  width:46px;height:46px;border-radius:13px;margin-bottom:18px;
  background:rgba(255,255,255,.16);display:flex;align-items:center;justify-content:center;font-size:21px;
}
.why-card h4{font-size:18px;font-weight:700;margin-bottom:9px}
.why-card p{font-size:14.5px;color:rgba(255,255,255,.74);line-height:1.72}

/* ============ 交付流程 ============ */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative;margin-top:20px}
.flow-item{text-align:center;padding:0 18px;position:relative}
.flow-item:not(:last-child)::after{
  content:"";position:absolute;top:26px;right:-12px;width:24px;height:2px;
  background:linear-gradient(90deg,var(--brand-2),var(--line));
}
.flow-num{
  width:54px;height:54px;margin:0 auto 18px;border-radius:50%;
  background:#fff;border:2px solid var(--brand);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:19px;font-weight:800;
  position:relative;z-index:1;box-shadow:0 0 0 8px rgba(43,108,247,.07);
}
.flow-item h4{font-size:16.5px;font-weight:700;margin-bottom:8px}
.flow-item p{font-size:13.5px;color:var(--ink-2);line-height:1.7}

/* ============ 案例 ============ */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 28px;transition:all .3s;
}
.case-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#D3E1FB}
.case-logo{
  width:54px;height:54px;border-radius:14px;margin-bottom:18px;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:19px;
}
.case-card h4{font-size:17.5px;font-weight:800;margin-bottom:10px}
.case-card p{font-size:14px;color:var(--ink-2);line-height:1.75;margin-bottom:18px}
.case-tags{display:flex;gap:8px;flex-wrap:wrap}
.case-tags span{
  font-size:12px;font-weight:600;color:var(--brand);background:var(--brand-light);
  padding:4px 11px;border-radius:7px;
}

/* ============ FAQ ============ */
.faq{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  overflow:hidden;transition:all .28s;
}
.faq-item.open{border-color:#D3E1FB;box-shadow:var(--shadow-sm)}
.faq-q{
  padding:22px 26px;font-size:16.5px;font-weight:700;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-q .plus{
  width:26px;height:26px;border-radius:50%;flex-shrink:0;
  background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;
  transition:transform .3s;
}
.faq-item.open .plus{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a-inner{padding:0 26px 24px;font-size:15px;color:var(--ink-2);line-height:1.8}

/* ============ 底部 CTA ============ */
.cta-band{
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-dark) 55%,#0E3AAE 100%);
  border-radius:var(--radius-lg);padding:64px 56px;color:#fff;
  display:grid;grid-template-columns:1.3fr .7fr;gap:48px;align-items:center;
  position:relative;overflow:hidden;box-shadow:0 24px 60px rgba(26,79,214,.28);
}
.cta-band::before{
  content:"";position:absolute;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.16),transparent 66%);
  top:-200px;right:-140px;
}
.cta-band h3{font-size:34px;font-weight:900;letter-spacing:-.02em;margin-bottom:14px;position:relative;z-index:1}
.cta-band p{font-size:16.5px;color:rgba(255,255,255,.82);margin-bottom:28px;position:relative;z-index:1}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1}
.qr-box{
  background:#fff;border-radius:18px;padding:22px;text-align:center;
  position:relative;z-index:1;box-shadow:0 16px 44px rgba(0,0,0,.18);
}
.qr-ph{
  width:150px;height:150px;margin:0 auto 14px;border-radius:12px;
  background:
    repeating-conic-gradient(#0D1B33 0% 25%,#fff 0% 50%) 50%/16px 16px;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
}
.qr-box .t{font-size:15px;font-weight:700;color:var(--ink)}
.qr-box .s{font-size:12.5px;color:var(--ink-3);margin-top:4px}

/* ============ 页脚 ============ */
.footer{background:#0A1428;color:rgba(255,255,255,.62);padding:56px 0 32px;font-size:14px}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.09)}
.footer .logo{color:#fff;margin-bottom:16px}
.footer-desc{font-size:13.5px;line-height:1.8;max-width:320px;color:rgba(255,255,255,.55)}
.footer h5{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.footer ul{list-style:none;display:flex;flex-direction:column;gap:11px}
.footer ul a{font-size:13.5px;color:rgba(255,255,255,.55);transition:color .2s}
.footer ul a:hover{color:#fff}
.qr-box .qr-img{width:150px;height:150px;margin:0 auto 14px;border-radius:12px;object-fit:contain;border:1px solid var(--line);background:#fff;display:block}
.footer-legal{
  padding:26px 0 4px;border-top:1px solid rgba(255,255,255,.09);
  display:flex;flex-direction:column;gap:9px;
}
.footer-legal p{font-size:12.5px;line-height:1.75;color:rgba(255,255,255,.46);margin:0}
.footer-legal b{color:rgba(255,255,255,.72);font-weight:600}
.footer-bottom{padding-top:26px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.42)}

/* ============ 滚动动画 ============ */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ============ 无障碍：减少动画 ============ */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .mock-bar-item{animation:none}
  .cap-panel{animation:none}
  .btn,.sol-card,.ind-card,.why-card,.case-card,.mock{transition:none}
}

/* ============ 响应式 ============ */
@media(max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:48px}
  .hero h1{font-size:42px}
  .mock{transform:none}
  .sol-grid,.why-grid,.case-grid{grid-template-columns:repeat(2,1fr)}
  .ind-grid{grid-template-columns:repeat(2,1fr)}
  .cap-inner{grid-template-columns:1fr;gap:36px;padding:36px}
  .flow{grid-template-columns:repeat(2,1fr);gap:36px}
  .flow-item::after{display:none}
  .cta-band{grid-template-columns:1fr;padding:44px 32px;gap:32px}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:720px){
  .wrap{padding:0 18px}
  .sec{padding:64px 0}
  .sec-title{font-size:28px}
  .hero{padding:120px 0 60px}
  .hero h1{font-size:33px}
  .hero p.lead{font-size:16.5px}
  .stats-inner{grid-template-columns:1fr 1fr;gap:28px}
  .stat+.stat::before{display:none}
  .stat .num{font-size:32px}
  .sol-grid,.why-grid,.case-grid,.ind-grid{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr;gap:30px}
  .nav-menu{display:none}
  .nav-menu.show{
    display:flex;position:absolute;top:72px;left:0;right:0;
    flex-direction:column;background:#fff;padding:20px 24px;gap:18px;
    border-bottom:1px solid var(--line);box-shadow:var(--shadow);
  }
  .menu-toggle{display:block}
  .nav-cta .btn-ghost{display:none}
  .cta-band h3{font-size:25px}
  .footer-top{grid-template-columns:1fr}
}

/* ============ 官方产品实拍 ============ */
.preview-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.preview-card{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  background:#fff;box-shadow:var(--shadow-sm);
  transition:transform .35s cubic-bezier(.2,.9,.3,1),box-shadow .35s ease;
  border:1px solid var(--line);
}
.preview-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.preview-card .pv-img{
  position:relative;aspect-ratio:4/3;overflow:hidden;background:#F2F5FB;
}
.preview-card .pv-img img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .5s ease}
.preview-card:hover .pv-img img{transform:scale(1.04)}
.preview-card .pv-tag{
  position:absolute;top:14px;left:14px;z-index:2;
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(255,255,255,.96);color:var(--brand);
  font-size:12px;font-weight:700;padding:5px 11px;border-radius:999px;
  box-shadow:0 4px 12px rgba(13,27,51,.08);backdrop-filter:blur(8px);
}
.preview-card .pv-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand)}
.preview-card .pv-meta{padding:18px 20px 20px}
.preview-card .pv-meta h4{font-size:16.5px;font-weight:700;color:var(--ink);margin-bottom:6px;line-height:1.4}
.preview-card .pv-meta p{font-size:13.5px;color:var(--ink-3);line-height:1.65;margin:0}
.preview-foot{
  margin-top:32px;display:flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 22px;background:var(--brand-lighter);border-radius:14px;
  font-size:13.5px;color:var(--ink-2);line-height:1.6;
}
.preview-foot svg{flex-shrink:0;color:var(--brand)}
@media (max-width:900px){.preview-grid{grid-template-columns:1fr 1fr;gap:16px}}
@media (max-width:600px){.preview-grid{grid-template-columns:1fr}}

/* ============ 子页面通用 ============ */
.page-hero{
  padding:150px 0 60px;
  background:
    radial-gradient(800px 300px at 88% -20%, rgba(43,108,247,.13), transparent 62%),
    linear-gradient(180deg,#F5F8FF 0%,#FFFFFF 100%);
  border-bottom:1px solid var(--line);
}
.page-hero h1{font-size:38px;font-weight:900;letter-spacing:-.02em;margin-bottom:14px;line-height:1.3}
.page-hero .lead{font-size:17px;color:var(--ink-2);max-width:780px;line-height:1.8}
.crumbs{font-size:13px;color:var(--ink-3);margin-bottom:20px}
.crumbs a{color:var(--ink-3)}
.crumbs a:hover{color:var(--brand)}
.crumbs span.sep{margin:0 8px;opacity:.5}
.nav-menu a.active{color:var(--brand);font-weight:700}

/* 方案详情行（solutions 页） */
.sol-detail{
  display:grid;grid-template-columns:290px 1fr;gap:36px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:38px 40px;margin-bottom:22px;transition:all .28s;
}
.sol-detail:hover{border-color:var(--brand-2);box-shadow:var(--shadow)}
.sol-detail .sd-head .sol-ic{width:54px;height:54px;border-radius:14px;background:var(--brand-light);display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:16px}
.sol-detail h3{font-size:21px;font-weight:800;margin-bottom:10px}
.sol-detail .sd-head p{font-size:14px;color:var(--ink-2);line-height:1.75;margin-bottom:14px}
.sd-fit{font-size:12.5px;font-weight:600;color:var(--brand);background:var(--brand-light);display:inline-block;padding:5px 13px;border-radius:999px}
.sd-block{margin-bottom:20px}
.sd-block:last-child{margin-bottom:0}
.sd-block h5{font-size:13px;font-weight:800;letter-spacing:.06em;color:var(--ink-3);margin-bottom:12px}
.cap-list{display:grid;grid-template-columns:1fr 1fr;gap:12px 20px}
.cap-li{display:flex;gap:10px;align-items:flex-start}
.cap-li .ck{flex-shrink:0;width:18px;height:18px;border-radius:50%;background:var(--brand-light);color:var(--brand);font-size:11px;display:flex;align-items:center;justify-content:center;font-weight:800;margin-top:3px}
.cap-li .txt strong{display:block;font-size:14.5px;font-weight:700;color:var(--ink);margin-bottom:2px}
.cap-li .txt span{font-size:13px;color:var(--ink-3);line-height:1.65}

/* 对比表（why 页） */
.cmp-wrap{overflow-x:auto;border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);border:1px solid var(--line)}
.cmp{width:100%;border-collapse:collapse;background:#fff;min-width:640px}
.cmp th,.cmp td{padding:15px 22px;font-size:14.5px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.cmp thead th{background:var(--brand-lighter);font-weight:800;color:var(--ink);font-size:15px}
.cmp thead th.hl{background:var(--brand);color:#fff}
.cmp tbody tr:last-child td{border-bottom:none}
.cmp td:first-child{font-weight:600;color:var(--ink);width:26%}
.cmp td.hl{background:#F8FAFF;color:var(--ink)}
.cmp .no{color:var(--ink-3)}
.cmp .yes{color:var(--ok);font-weight:600}

/* 案例详情（cases 页） */
.case-detail{
  display:grid;grid-template-columns:auto 1fr;gap:30px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:38px 40px;margin-bottom:22px;transition:all .28s;
}
.case-detail:hover{border-color:var(--brand-2);box-shadow:var(--shadow)}
.case-detail .case-logo{width:64px;height:64px;border-radius:18px;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;font-size:26px;font-weight:800;display:flex;align-items:center;justify-content:center}
.case-detail h3{font-size:20px;font-weight:800;margin-bottom:4px}
.case-detail .case-sub{font-size:13px;color:var(--ink-3);margin-bottom:16px}
.case-detail .cap-list{grid-template-columns:1fr;margin-bottom:14px}
.case-tags{display:flex;gap:8px;flex-wrap:wrap}
.case-tags span{font-size:12px;font-weight:600;color:var(--brand);background:var(--brand-light);padding:4px 12px;border-radius:999px}

/* 子页响应式 */
@media(max-width:1024px){
  .sol-detail{grid-template-columns:1fr;gap:22px;padding:30px 26px}
  .sol-detail .cap-list{grid-template-columns:1fr}
  .case-detail{grid-template-columns:1fr;padding:30px 26px}
}

/* ============ 工具下载页 ============ */
.tools-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.tool-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:30px 32px;transition:all .28s;
  display:flex;flex-direction:column;
}
.tool-card:hover{border-color:var(--brand-2);transform:translateY(-3px);box-shadow:var(--shadow)}
.tool-card.featured{
  grid-column:1/-1;
  background:linear-gradient(120deg,#F2F7FF 0%,#FFFFFF 58%);
  border-color:rgba(43,108,247,.30);
  position:relative;overflow:hidden;
}
.tool-card.featured::after{
  content:'';position:absolute;right:-70px;top:-70px;width:230px;height:230px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,108,247,.12),transparent 68%);pointer-events:none;
}
.tool-top{display:flex;gap:16px;align-items:flex-start;margin-bottom:14px}
.tool-logo{
  width:58px;height:58px;border-radius:16px;flex-shrink:0;
  background:var(--brand-lighter);border:1px solid var(--line);
  padding:8px;object-fit:contain;
}
.tool-name-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.tool-name{font-size:19px;font-weight:800;letter-spacing:-.01em}
.tool-role{
  font-size:11.5px;font-weight:700;color:var(--brand);
  background:var(--brand-light);padding:3px 11px;border-radius:999px;white-space:nowrap;
}
.tool-role.ai{color:#fff;background:linear-gradient(90deg,var(--brand),var(--brand-2))}
.tool-role.soon{color:var(--warn);background:#FFF2E9}
.tool-desc{font-size:14px;color:var(--ink-2);line-height:1.7;margin-bottom:20px}
.pf-grid{display:flex;flex-wrap:wrap;gap:10px;margin-top:auto}
.pf-tile{
  display:flex;flex-direction:column;align-items:center;gap:6px;
  min-width:76px;padding:13px 12px 11px;border:1px solid var(--line);border-radius:14px;
  background:#fff;transition:all .22s;text-decoration:none;cursor:pointer;font-family:inherit;
}
.pf-tile:hover{border-color:var(--brand-2);background:var(--brand-lighter);transform:translateY(-2px)}
.pf-tile img{width:22px;height:22px;object-fit:contain;display:block}
.pf-tile .pl{font-size:12.5px;font-weight:700;color:var(--ink);line-height:1.2;white-space:nowrap}
.pf-tile .ps{font-size:10.5px;color:var(--ink-3);line-height:1;letter-spacing:.02em}
.pf-tile.is-plain{cursor:default;opacity:.66}
.pf-tile.is-plain:hover{border-color:var(--line);background:#fff;transform:none}

/* 二维码灯箱 */
#qrMask{
  position:fixed;inset:0;background:rgba(10,22,45,.60);backdrop-filter:blur(5px);
  display:none;align-items:center;justify-content:center;z-index:200;padding:24px;
}
#qrMask.on{display:flex}
#qrCard{
  background:#fff;border-radius:20px;padding:30px 30px 24px;text-align:center;
  max-width:320px;width:100%;box-shadow:0 24px 70px rgba(10,25,60,.32);position:relative;
}
#qrCard h3{font-size:17px;font-weight:800;margin-bottom:2px;padding-right:20px}
#qrCard img{width:200px;height:200px;object-fit:contain;margin:16px auto 12px;display:block;border-radius:10px}
#qrCard p{font-size:12.5px;color:var(--ink-3)}
.qr-close{
  position:absolute;top:10px;right:12px;width:30px;height:30px;border:none;background:none;
  font-size:24px;line-height:1;color:var(--ink-3);cursor:pointer;
}
.qr-close:hover{color:var(--ink)}

/* 下载页「下载之后」价值区 */
.after-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.after-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 26px;display:flex;gap:14px;align-items:flex-start;transition:all .28s;
}
.after-card:hover{border-color:var(--brand-2);box-shadow:var(--shadow-sm)}
.after-ic{
  width:42px;height:42px;border-radius:12px;background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0;font-weight:800;
}
.after-card h4{font-size:15.5px;font-weight:800;margin-bottom:5px}
.after-card p{font-size:13.5px;color:var(--ink-2);line-height:1.7}

.dl-notice{
  display:flex;gap:12px;align-items:flex-start;
  background:var(--brand-lighter);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 22px;margin-top:26px;
}
.dl-notice svg{flex-shrink:0;margin-top:2px;color:var(--brand)}
.dl-notice p{font-size:13px;color:var(--ink-2);line-height:1.75}
.dl-notice b{color:var(--ink)}

@media(max-width:1024px){
  .tools-grid{grid-template-columns:1fr}
  .after-grid{grid-template-columns:1fr}
}
@media(max-width:560px){
  .pf-tile{min-width:calc(33.3% - 7px)}
}

/* ============ 行业详情页 ============ */
.pain-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:6px}
.pain-chip{
  display:flex;gap:12px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:16px 20px;font-size:14.5px;font-weight:600;color:var(--ink);
  line-height:1.65;transition:all .25s;
}
.pain-chip:hover{border-color:var(--brand-2);box-shadow:var(--shadow-sm);transform:translateY(-2px)}
.pain-chip::before{
  content:'';flex-shrink:0;width:8px;height:8px;border-radius:50%;
  background:var(--warn);margin-top:7px;
}
.ind-sec{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:34px 38px;margin-bottom:20px;transition:all .28s;
}
.ind-sec:hover{border-color:var(--brand-2);box-shadow:var(--shadow)}
.ind-sec h3{font-size:20px;font-weight:800;margin-bottom:4px;letter-spacing:-.01em}
.ind-sec .ind-sec-sub{font-size:13.5px;color:var(--ink-3);margin-bottom:20px;line-height:1.7}
.ind-sub{
  font-size:13px;font-weight:800;letter-spacing:.05em;color:var(--brand);
  margin:22px 0 12px;display:flex;align-items:center;gap:8px;
}
.ind-sub::before{content:'';width:14px;height:3px;border-radius:2px;background:var(--brand)}
.ind-sec .cap-list{margin-top:14px}
.ind-statement{
  background:var(--brand-lighter);border-left:4px solid var(--brand);
  padding:18px 26px;border-radius:12px;font-size:15.5px;font-weight:700;
  color:var(--ink);margin-bottom:20px;line-height:1.7;
}
a.ind-card{text-decoration:none;color:inherit;cursor:pointer}
.faq-only-list{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.faq-only-list .fq{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:16px 20px;font-size:14.5px;font-weight:600;color:var(--ink);
  display:flex;gap:10px;align-items:flex-start;line-height:1.6;
}
.faq-only-list .fq .ck{
  flex-shrink:0;width:20px;height:20px;border-radius:50%;background:var(--brand-light);
  color:var(--brand);font-size:11px;display:flex;align-items:center;justify-content:center;font-weight:800;margin-top:2px;
}
@media(max-width:720px){
  .pain-grid{grid-template-columns:1fr}
  .faq-only-list{grid-template-columns:1fr}
  .ind-sec{padding:26px 22px}
}

/* 主页精简：实拍区看更多 */
.preview-more{text-align:center;margin-top:32px}

/* ============ 关于我们 + 授权书 ============ */
.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.about-txt .sec-title{font-size:32px}
.about-lead{font-size:16px;color:var(--ink-2);line-height:1.85;margin-bottom:14px}
.about-txt>p{font-size:15px;color:var(--ink-2);line-height:1.85;margin-bottom:14px}
.about-cred{margin-top:24px;display:grid;gap:16px;list-style:none}
.about-cred li{display:flex;gap:12px;align-items:flex-start}
.about-cred .ck{flex-shrink:0;width:22px;height:22px;border-radius:50%;background:var(--brand-light);color:var(--brand);font-size:12px;font-weight:800;display:flex;align-items:center;justify-content:center;margin-top:2px}
.about-cred b{display:block;font-size:15px;margin-bottom:3px}
.about-cred li div{font-size:13.5px;color:var(--ink-3);line-height:1.7}
.about-cert{margin:0}
.cert-frame{display:block;width:100%;border:none;background:none;padding:0;cursor:zoom-in;position:relative;border-radius:18px}
.cert-frame img{width:100%;display:block;border-radius:18px;border:1px solid var(--line);background:#fff;box-shadow:0 24px 60px rgba(10,25,60,.14);transition:all .3s}
.cert-frame:hover img{box-shadow:0 30px 74px rgba(10,25,60,.26);transform:translateY(-3px)}
.cert-zoom{position:absolute;left:50%;bottom:18px;transform:translateX(-50%);background:rgba(10,25,60,.78);color:#fff;font-size:12.5px;font-weight:600;padding:8px 18px;border-radius:999px;backdrop-filter:blur(4px);white-space:nowrap}
.about-cert figcaption{text-align:center;font-size:12.5px;color:var(--ink-3);margin-top:14px}

/* 授权书大图灯箱模式 */
#qrCard.big{max-width:600px}
#qrCard.big img{width:auto;max-width:min(78vw,480px);height:auto;max-height:62vh;margin:16px auto 12px}
#qrCard.big p{font-size:13px;color:var(--ink-2)}

@media(max-width:1024px){
  .about-grid{grid-template-columns:1fr;gap:36px}
  .about-cert{max-width:440px;margin:0 auto;width:100%}
}