/* 伯跃官网内页共享样式：变量、导航、页脚照抄首页，其后为内页专用组件 */
@font-face{font-family:"Saira";src:url(fonts/saira-latin.woff2) format("woff2");font-weight:300 700;font-display:swap}
:root{
  --ink:#0B1B33;--ink2:#334155;--muted:#64748B;--faint:#94A3B8;
  --line:#E3EAF3;--bg:#F5F8FC;--panel:#EEF3F9;
  --brand:#17499D;--action:#2563EB;--cyan:#5FC2D3;--cyan-soft:#DDF3F7;
  --deep:#071631;
  --cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  --en:"Saira",var(--cn);
  --wrap:1320px;--nav:76px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:var(--nav)}
body{font-family:var(--cn);color:var(--ink);background:#fff;-webkit-font-smoothing:antialiased;line-height:1.6;overflow-x:hidden}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
img{display:block;max-width:100%}
.wrap{max-width:var(--wrap);margin:0 auto;padding-left:40px;padding-right:40px}
.eyebrow{font-family:var(--en);font-size:12px;letter-spacing:.28em;text-transform:uppercase;color:var(--action);display:flex;align-items:center;gap:10px;font-weight:500}
.eyebrow::before{content:"";width:18px;height:1px;background:currentColor}
.eyebrow.light{color:#BFE9F1}
.h2{font-size:clamp(26px,2.6vw,42px);font-weight:600;letter-spacing:.03em;line-height:1.25;margin-top:14px}
.hl{background:linear-gradient(100deg,var(--brand) 10%,var(--action) 45%,var(--cyan) 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:clamp(14px,1.1vw,16px);line-height:1.9;color:var(--muted);max-width:520px}
.btn{display:inline-flex;align-items:center;gap:16px;height:46px;padding:0 22px;font-size:15px;border-radius:2px;transition:.35s var(--ease);white-space:nowrap}
.btn svg{width:12px;height:12px;transition:transform .35s var(--ease)}
.btn:hover svg{transform:translate(2px,-2px)}
.btn-solid{background:var(--action);color:#fff;box-shadow:0 12px 26px -12px rgba(37,99,235,.7)}
.btn-solid:hover{background:var(--brand)}
.btn-line{border:1px solid var(--action);color:var(--action)}
.btn-line:hover{background:var(--action);color:#fff}
.btn-ghost{border:1px solid rgba(255,255,255,.75);color:#fff}
.btn-ghost:hover{background:#fff;color:var(--brand)}
[data-rv]{opacity:0;transform:translateY(26px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
[data-rv].in{opacity:1;transform:none}
[data-rv="2"]{transition-delay:.12s}[data-rv="3"]{transition-delay:.24s}[data-rv="4"]{transition-delay:.36s}

/* ---------- 导航 ---------- */
.nav{position:fixed;inset:0 0 auto;height:var(--nav);z-index:50;background:rgba(255,255,255,.84);backdrop-filter:saturate(1.4) blur(14px);-webkit-backdrop-filter:saturate(1.4) blur(14px);border-bottom:1px solid rgba(227,234,243,.9);transition:box-shadow .3s}
.nav.scrolled{box-shadow:0 8px 30px -18px rgba(11,27,51,.25)}
.nav-in{max-width:calc(var(--wrap) + 120px);margin:0 auto;height:100%;padding:0 40px;display:flex;align-items:center;gap:40px}
.logo{display:flex;align-items:center;gap:10px;flex:none}
.logo-mark{height:38px;width:auto}
.logo-words{display:flex;flex-direction:column;gap:5px}
.logo-words img:first-child{width:98px}
.logo-words img:last-child{width:98px}
.menu{display:flex;margin-left:auto;height:100%}
.menu a{position:relative;display:flex;align-items:center;padding:0 20px;font-size:15px;color:var(--ink2);transition:color .25s}
.menu a::after{content:"";position:absolute;left:20px;right:20px;bottom:-1px;height:2px;background:var(--action);transform:scaleX(0);transition:transform .35s var(--ease)}
.menu a:hover,.menu a.on{color:var(--action)}
.menu a.on::after,.menu a:hover::after{transform:scaleX(1)}
.nav-act{display:flex;align-items:center;gap:12px}
.nav-act .btn{height:38px;padding:0 18px;font-size:14px}
.burger{display:none;width:40px;height:40px;position:relative}
.burger i{position:absolute;left:10px;right:10px;height:1.5px;background:var(--ink)}
.burger i{transition:transform .3s var(--ease),opacity .3s}
.burger i:nth-child(1){top:14px}.burger i:nth-child(2){top:20px}.burger i:nth-child(3){top:26px}
.nav.open .burger i:nth-child(1){transform:translateY(6px) rotate(45deg)}.nav.open .burger i:nth-child(2){opacity:0}.nav.open .burger i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.m-only{display:none!important}

/* ---------- 页脚 ---------- */
.foot{background:var(--deep);color:rgba(255,255,255,.62);font-size:14px}
.f-top{display:grid;grid-template-columns:200px 1fr;gap:56px;padding:72px 0 56px}
.f-brand .logo-mark,.f-brand .logo-words img{filter:brightness(0) invert(1)}
.f-brand .slogan{margin-top:26px;font-size:13px;letter-spacing:.3em;color:rgba(255,255,255,.5)}
.f-cols{display:flex;justify-content:space-between;gap:24px}
.f-cols h4{color:#fff;font-size:15px;font-weight:500;margin-bottom:14px}
.f-cols h4::after{content:"";display:block;width:14px;height:1px;background:rgba(255,255,255,.4);margin-top:12px}
.f-cols a{display:block;line-height:2.25;transition:color .25s;white-space:nowrap}
.f-cols a:hover{color:#fff}
.f-qr{display:flex;gap:12px;margin-top:16px}
.f-qr img{width:86px;height:86px;display:block;border-radius:6px;background:#fff}
.f-bot{border-top:1px solid rgba(255,255,255,.1);padding:22px 0;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:12px;color:rgba(255,255,255,.45)}
.f-bot .icp{margin-left:14px;transition:color .25s}
.f-bot .icp:hover{color:#fff}

/* ---------- 页头 ---------- */
.page-head{position:relative;padding:calc(var(--nav) + 84px) 0 84px;background:linear-gradient(180deg,#FAFCFF 0%,#EEF4FB 100%);overflow:hidden}
.page-head::before{content:"";position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(23,73,157,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(23,73,157,.055) 1px,transparent 1px);background-size:72px 72px;-webkit-mask-image:radial-gradient(ellipse 70% 90% at 70% 50%,#000 20%,transparent 75%);mask-image:radial-gradient(ellipse 70% 90% at 70% 50%,#000 20%,transparent 75%)}
.page-head::after{content:"";position:absolute;width:640px;height:640px;right:-80px;top:-120px;pointer-events:none;background:radial-gradient(circle,rgba(95,194,211,.26) 0%,rgba(95,194,211,.08) 38%,transparent 66%);filter:blur(10px)}
.ph-in{position:relative;z-index:1}
.page-head h1{font-size:clamp(34px,3.6vw,56px);font-weight:600;letter-spacing:.05em;line-height:1.2;margin-top:20px}
.page-head h1::after{content:"";display:block;width:56px;height:3px;margin-top:24px;background:linear-gradient(90deg,var(--action),var(--cyan))}
.page-head .lead{margin-top:24px;max-width:640px;font-size:clamp(15px,1.2vw,18px)}

/* ---------- 通用区块 ---------- */
.sec{padding:112px 0}
.sec.alt{background:var(--bg)}
.ico{width:48px;height:48px;border-radius:50%;border:1px solid #CFDBEA;background:rgba(255,255,255,.75);display:grid;place-items:center;flex:none;transition:.35s var(--ease)}
.ico svg{width:22px;height:22px;stroke:var(--action);fill:none;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round}
.chips{list-style:none;display:flex;flex-wrap:wrap;gap:10px}
.chips li{font-size:14px;padding:6px 14px;border:1px solid var(--line);background:#F8FAFD;border-radius:2px;color:var(--ink2);letter-spacing:.02em}
.chips li small{margin-left:8px;font-size:12px;color:var(--action)}
.points{list-style:none;display:grid;gap:10px;margin-top:18px}
.points li{position:relative;padding-left:20px;font-size:14px;line-height:1.8;color:var(--ink2)}
.points li::before{content:"";position:absolute;left:0;top:.95em;width:10px;height:1px;background:var(--action)}
.cap-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:56px}
.cap-card{background:#fff;border:1px solid var(--line);border-radius:6px;padding:32px 30px 34px;transition:transform .45s var(--ease),box-shadow .45s var(--ease),border-color .45s}
.cap-card:hover{transform:translateY(-6px);box-shadow:0 30px 60px -30px rgba(23,73,157,.35);border-color:#C9D8EC}
.cap-card:hover .ico{border-color:var(--action);box-shadow:0 0 0 6px rgba(37,99,235,.08)}
.cap-card h3{font-size:19px;font-weight:600;margin-top:22px;letter-spacing:.03em}
.cap-card p{font-size:14px;color:var(--muted);line-height:1.85;margin-top:10px}

/* ---------- 平台定位 ---------- */
.pos{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:72px;margin-top:56px;align-items:start}
.pos-line{font-size:clamp(22px,2.1vw,32px);font-weight:600;line-height:1.5;letter-spacing:.03em}
.pos-text{margin-top:22px;font-size:15px;line-height:1.95;color:var(--muted);max-width:560px}
.tags{list-style:none;border-top:1px solid var(--line)}
.tags li{display:grid;grid-template-columns:48px minmax(0,1fr);gap:20px;padding:26px 0;border-bottom:1px solid var(--line);align-items:start}
.tags li:hover .ico{border-color:var(--action);box-shadow:0 0 0 6px rgba(37,99,235,.08)}
.tags h3{font-size:18px;font-weight:600;letter-spacing:.04em;line-height:48px}
.tags p{font-size:14px;color:var(--muted);line-height:1.8;margin-top:2px}

/* ---------- 产业链位置 ---------- */
.chain{display:grid;grid-template-columns:minmax(0,1.25fr) 56px minmax(0,1fr) 56px minmax(0,.9fr);align-items:stretch;margin-top:56px}
.ch-col{border:1px solid var(--line);background:#fff;border-radius:6px;padding:32px 30px}
.ch-col h3{font-size:18px;font-weight:600;letter-spacing:.04em;display:flex;align-items:baseline;gap:10px}
.ch-col h3 span{font-size:12px;font-weight:400;color:var(--action);letter-spacing:.1em}
.ch-col .chips{margin-top:22px}
.ch-mid{background:linear-gradient(160deg,#F6F9FD,#E6EEF8);border-color:#C9D8EC;display:flex;flex-direction:column;align-items:flex-start}
.ch-mid img{height:44px;width:auto;margin-bottom:20px}
.ch-tag{display:inline-block;margin-top:10px;font-size:12px;color:var(--action);border:1px solid rgba(37,99,235,.35);padding:1px 8px;border-radius:2px;letter-spacing:.1em}
.ch-mid p.ch-text{font-size:14px;color:var(--ink2);line-height:1.85;margin-top:16px}
.ch-arrow{position:relative}
.ch-arrow::before{content:"";position:absolute;left:8px;right:8px;top:50%;height:1px;background:var(--faint)}
.ch-arrow::after{content:"";position:absolute;right:8px;top:50%;width:8px;height:8px;border-top:1px solid var(--faint);border-right:1px solid var(--faint);transform:translateY(-50%) rotate(45deg)}

/* ---------- 平台架构四层 ---------- */
.layers{display:grid;gap:14px;margin-top:56px}
.layer{display:grid;grid-template-columns:220px minmax(0,1fr);border:1px solid var(--line);border-radius:6px;background:#fff;overflow:hidden}
.ly-name{padding:28px;background:linear-gradient(160deg,#F6F9FD,#E6EEF8);border-right:1px solid var(--line);display:flex;flex-direction:column;gap:6px;justify-content:center}
.ly-no{font-family:var(--en);font-size:13px;color:var(--faint);letter-spacing:.2em}
.ly-name h3{font-size:20px;font-weight:600;letter-spacing:.04em}
.ly-body{padding:26px 30px;display:flex;flex-direction:column;gap:14px;justify-content:center}
.ly-body p{font-size:14px;color:var(--muted);line-height:1.85}

/* ---------- 产品体系详细版 ---------- */
.prods{margin-top:56px;border-top:1px solid var(--line)}
.prod{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:64px;padding:64px 0;border-bottom:1px solid var(--line);align-items:center}
.prod-art{position:relative;height:260px;border-radius:6px;border:1px solid var(--line);background:linear-gradient(160deg,#F6F9FD,#E6EEF8);overflow:hidden}
.prod-art svg{position:absolute;inset:0;width:100%;height:100%}
.prod-art path,.prod-art line,.prod-art circle,.prod-art rect,.prod-art ellipse{transition:stroke .5s,opacity .5s}
.prod:hover .prod-art .hot{stroke:var(--action)}
.prod .no{font-family:var(--en);font-size:13px;color:var(--faint);letter-spacing:.2em}
.prod h3{font-size:clamp(22px,1.8vw,28px);font-weight:600;margin-top:10px;letter-spacing:.03em}
.prod .who{display:block;font-size:13px;color:var(--action);margin-top:8px;letter-spacing:.06em}
.prod-lead{font-size:16px;color:var(--ink2);line-height:1.9;margin-top:20px}
.prod-more{font-size:15px;color:var(--muted);line-height:1.9;margin-top:12px}

/* ---------- 接入四步 ---------- */
.steps{list-style:none;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));margin-top:56px;border-top:1px solid var(--line)}
.step{padding:36px 28px 6px 0}
.step+.step{padding-left:28px;border-left:1px solid var(--line)}
.step .no{font-family:var(--en);font-size:44px;font-weight:400;line-height:1;color:var(--ink);letter-spacing:-.01em}
.step h3{font-size:18px;font-weight:600;margin-top:22px;letter-spacing:.04em}
.step p{font-size:14px;color:var(--muted);margin-top:10px;line-height:1.85}

/* ---------- 资质证照 ---------- */
.cert-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,520px),1fr));gap:24px;margin-top:56px}
.cert-card{display:grid;grid-template-columns:minmax(0,260px) minmax(0,1fr);gap:28px;padding:28px;border:1px solid var(--line);border-radius:6px;background:#fff;align-items:start}
.cert-thumb{position:relative;display:block;width:100%;border:1px solid var(--line);border-radius:4px;overflow:hidden;background:var(--panel);cursor:zoom-in;transition:border-color .3s,box-shadow .3s}
.cert-thumb:hover,.cert-thumb:focus-visible{border-color:var(--action);box-shadow:0 14px 30px -18px rgba(23,73,157,.5)}
.cert-thumb img{width:100%;height:auto}
.cert-thumb.broken{aspect-ratio:480/339}
.cert-thumb.broken img{display:none}
.cert-zoom{position:absolute;right:10px;bottom:10px;width:34px;height:34px;border-radius:50%;background:rgba(255,255,255,.92);display:grid;place-items:center;box-shadow:0 6px 16px -8px rgba(11,27,51,.5)}
.cert-zoom svg{width:16px;height:16px;stroke:var(--brand);fill:none;stroke-width:1.5;stroke-linecap:round}
.cert-info h3{font-size:20px;font-weight:600;letter-spacing:.04em}
.cert-dl{margin-top:16px;display:grid;grid-template-columns:auto minmax(0,1fr);gap:10px 18px;font-size:14px;line-height:1.7}
.cert-dl dt{color:var(--faint);white-space:nowrap}
.cert-dl dd{color:var(--ink2)}
.cert-dl dd.code{font-family:var(--en);letter-spacing:.02em;word-break:break-all}
.cert-tip{margin-top:16px;font-size:12px;line-height:1.7;color:var(--faint)}
.lightbox{position:fixed;inset:0;z-index:100;display:grid;place-items:center;padding:56px 24px 24px;background:rgba(7,22,49,.84);opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s}
.lightbox[aria-hidden="false"]{opacity:1;visibility:visible}
.lightbox[aria-hidden="true"]{pointer-events:none}
.lightbox img{max-width:min(94vw,1600px);max-height:calc(100vh - 96px);width:auto;height:auto;border-radius:4px;box-shadow:0 30px 80px -20px rgba(0,0,0,.6);background:#fff}
.lb-close{position:absolute;top:8px;right:12px;width:44px;height:44px;border-radius:50%;display:grid;place-items:center;color:#fff;transition:background .25s}
.lb-close:hover,.lb-close:focus-visible{background:rgba(255,255,255,.16)}
.lb-close svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round}
html.lb-open,html.lb-open body{overflow:hidden}

/* ---------- 四项承诺详细版 ---------- */
.commit-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));margin-top:56px;border-top:1px solid var(--line)}
.commit{position:relative;padding:44px 44px 48px 0;border-bottom:1px solid var(--line)}
.commit:nth-child(2n){padding-left:44px;padding-right:0;border-left:1px solid var(--line)}
.commit .dots{position:absolute;top:40px;right:44px}
.commit:nth-child(2n) .dots{right:0}
.commit .dots circle{fill:#E3EAF3;transition:fill .4s}
.commit .dots circle.x{fill:#7F9CC6}
.commit:hover .dots circle.x{fill:var(--action)}
.commit .no{font-family:var(--en);font-size:14px;color:var(--action);letter-spacing:.2em}
.commit h3{font-size:22px;font-weight:600;margin-top:36px;padding-right:90px;letter-spacing:.03em}
.commit .sum{font-size:15px;color:var(--muted);margin-top:14px;line-height:1.85;max-width:480px}
.commit .points{max-width:480px}

/* ---------- 响应式 ---------- */
@media (min-width:1800px){
  :root{--wrap:1440px}
}
@media (min-width:2200px){
  :root{--wrap:1720px;--nav:88px}
  body{font-size:17px}
  .h2{font-size:52px}
  .lead{font-size:18px}
  .menu a{font-size:17px}
  .logo-mark{height:44px}.logo-words img:first-child,.logo-words img:last-child{width:112px}
  .btn{height:52px;font-size:16px}
  .page-head h1{font-size:72px}
  .page-head .lead{font-size:22px;max-width:760px}
  .pos-line{font-size:40px}
  .pos-text,.prod-more,.cap-card p,.ly-body p,.step p,.commit .sum{font-size:17px}
  .tags p,.points li,.cert-dl{font-size:16px}
}
@media (max-width:1280px){
  .nav-in{gap:24px}
  .menu a{padding:0 13px}
  .menu a::after{left:13px;right:13px}
  .pos{gap:48px}
  .prod{gap:40px}
}
@media (max-width:1024px){
  :root{--nav:64px}
  .wrap,.nav-in{padding-left:24px;padding-right:24px}
  .logo-mark{height:34px}
  .logo-words img:first-child,.logo-words img:last-child{width:88px}
  .menu,.nav-act{display:none}
  .burger{display:block;margin-left:auto}
  .m-only{display:flex!important}
  .nav.open .menu{display:flex;position:fixed;top:var(--nav);left:0;right:0;bottom:0;flex-direction:column;height:calc(100vh - var(--nav));height:calc(100dvh - var(--nav));margin:0;padding:12px 0 32px;background:rgba(255,255,255,.98);overflow-y:auto}
  .nav.open .menu a{height:auto;padding:16px 24px;font-size:16px;border-bottom:1px solid var(--line)}
  .nav.open .menu a::after{display:none}
  .nav.open .menu .menu-cta{margin:24px 24px 0;justify-content:center;background:var(--action);color:#fff;border:0;border-radius:2px}
  .f-top{grid-template-columns:1fr;gap:40px;padding:56px 0 40px}
  .f-cols{display:grid;grid-template-columns:repeat(3,auto);justify-content:space-between;gap:28px 16px}
  .f-bot{flex-direction:column;gap:6px}
  .f-cols>div:last-child{grid-column:1/-1}

  .page-head{padding:calc(var(--nav) + 56px) 0 56px}
  .sec{padding:80px 0}
  .pos{grid-template-columns:1fr;gap:32px;margin-top:40px}
  .chain{grid-template-columns:1fr;margin-top:40px}
  .ch-arrow{height:44px}
  .ch-arrow::before{left:50%;right:auto;top:6px;bottom:6px;width:1px;height:auto}
  .ch-arrow::after{left:50%;right:auto;top:auto;bottom:6px;transform:translateX(-50%) rotate(135deg)}
  .layers,.cap-grid,.prods,.steps,.cert-grid,.commit-grid{margin-top:40px}
  .layer{grid-template-columns:1fr}
  .ly-name{border-right:0;border-bottom:1px solid var(--line);padding:20px 24px;flex-direction:row;align-items:baseline;gap:14px}
  .ly-body{padding:22px 24px}
  .cap-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
  .prod{grid-template-columns:1fr;gap:28px;padding:44px 0}
  .prod-art{height:220px}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .step,.step+.step{padding:28px 16px 4px 0;border-left:0}
  .step:nth-child(2n){padding-left:20px;border-left:1px solid var(--line)}
  .step:nth-child(n+3){border-top:1px solid var(--line)}
  .commit-grid{grid-template-columns:1fr}
  .commit,.commit:nth-child(2n){padding:32px 0 34px;border-left:0}
  .commit h3{margin-top:22px;font-size:20px}
  .commit .dots,.commit:nth-child(2n) .dots{right:0;top:28px;width:56px;height:56px}
}
@media (max-width:640px){
  .wrap,.nav-in{padding-left:20px;padding-right:20px}
  .btn{height:44px;padding:0 20px}
  .f-cols{grid-template-columns:repeat(2,1fr)}
  .page-head{padding:calc(var(--nav) + 40px) 0 44px}
  .cap-grid{grid-template-columns:1fr}
  .cap-card{padding:26px 24px 28px}
  .ch-col{padding:26px 22px}
  .steps{grid-template-columns:1fr}
  .step,.step+.step,.step:nth-child(2n){padding:26px 0 4px;border-left:0}
  .step+.step{border-top:1px solid var(--line)}
  .cert-card{grid-template-columns:1fr;gap:20px;padding:22px}
  .cert-thumb{max-width:340px}
  .cert-dl{grid-template-columns:1fr;gap:2px}
  .cert-dl dd+dt{margin-top:10px}
  .cert-dl dd.code{word-break:normal}
  .cert-grid{grid-template-columns:1fr}
  .lightbox{padding:56px 8px 8px}
  .lightbox img{max-width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  [data-rv]{opacity:1;transform:none}
}

/* ---------- 关于伯跃 ---------- */
.ab-split{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:80px;align-items:start}
.ab-lead{font-size:clamp(16px,1.45vw,21px);line-height:2;color:var(--ink2);letter-spacing:.02em;padding-top:6px}
.ab-slogan{margin-top:28px;font-size:clamp(22px,2.2vw,34px);font-weight:600;letter-spacing:.22em;line-height:1.4;background:linear-gradient(100deg,var(--brand) 10%,var(--action) 45%,var(--cyan) 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.ab-brand{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:72px;align-items:center;margin-top:56px}
.ab-logo{display:grid;place-items:center;min-height:360px;padding:48px;background:#fff;border:1px solid var(--line);border-radius:6px;background-image:linear-gradient(rgba(23,73,157,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(23,73,157,.04) 1px,transparent 1px);background-size:48px 48px}
.logo-big{height:clamp(160px,16vw,240px);width:auto;max-width:100%}
.ab-gloss{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.ab-gloss-item{padding:26px 28px 28px;background:#fff;border:1px solid var(--line);border-radius:6px;transition:transform .45s var(--ease),box-shadow .45s var(--ease),border-color .45s}
.ab-gloss-item:hover{transform:translateY(-6px);box-shadow:0 30px 60px -30px rgba(23,73,157,.35);border-color:#C9D8EC}
.ab-gloss-item h3{font-size:44px;font-weight:600;line-height:1.1;color:var(--brand)}
.ab-gloss-item p{margin-top:14px;font-size:14px;line-height:1.85;color:var(--muted)}
.ab-meaning{margin-top:32px;padding-left:22px;border-left:2px solid var(--cyan);font-size:clamp(15px,1.15vw,17px);line-height:2;color:var(--ink2)}
.ab-meaning em{font-style:normal;font-weight:600;color:var(--brand)}
.ab-vision{position:relative;overflow:hidden;background:var(--deep);color:#fff}
.ab-vision::before{content:"";position:absolute;width:720px;height:720px;right:-160px;top:-220px;pointer-events:none;background:radial-gradient(circle,rgba(95,194,211,.22) 0%,rgba(95,194,211,.06) 40%,transparent 68%)}
.ab-vision-in{position:relative;z-index:1}
.ab-vision .h2{color:#fff}
.ab-vision-main{margin-top:40px;max-width:900px;font-size:clamp(24px,2.8vw,44px);font-weight:600;line-height:1.45;letter-spacing:.04em}
.ab-vision-sub{margin-top:24px;max-width:720px;font-size:clamp(15px,1.2vw,18px);line-height:1.95;color:rgba(255,255,255,.66)}
.ab-sub{margin-top:56px;font-size:20px;font-weight:600;letter-spacing:.04em}
.ab-sub+.ab-bill,.ab-sub+.cap-grid{margin-top:24px}
.ab-bill{display:flex;align-items:center;gap:22px;padding:28px 32px;background:var(--bg);border:1px solid var(--line);border-radius:6px}
.ab-bill p{font-size:clamp(15px,1.2vw,18px);line-height:1.85;color:var(--ink2)}
.ab-contact-lead{margin-top:24px}
.ab-card{background:#fff;border:1px solid var(--line);border-radius:6px}
.ab-row{display:grid;grid-template-columns:120px minmax(0,1fr);gap:24px;align-items:baseline;padding:30px 36px}
.ab-row+.ab-row{border-top:1px solid var(--line)}
.ab-row dt{font-size:14px;letter-spacing:.08em;color:var(--muted)}
.ab-row dd{font-size:clamp(16px,1.3vw,19px);line-height:1.8;color:var(--ink);overflow-wrap:anywhere}
.ab-row dd a{color:var(--action);transition:color .25s}
.ab-row dd a:hover{color:var(--brand)}
@media (max-width:1024px){
  .ab-split{grid-template-columns:1fr;gap:28px}
  .ab-brand{grid-template-columns:1fr;gap:32px;margin-top:40px}
  .ab-logo{min-height:280px;padding:36px}
  .ab-sub{margin-top:44px}
}
@media (max-width:640px){
  .ab-slogan{letter-spacing:.14em}
  .ab-gloss{grid-template-columns:1fr}
  .ab-logo{min-height:220px;padding:28px 20px}
  .logo-big{height:150px}
  .ab-bill{flex-direction:column;align-items:flex-start;gap:16px;padding:24px 22px}
  .ab-row{grid-template-columns:1fr;gap:6px;padding:22px 22px}
}

/* ---------- 解决方案 ---------- */
.sol{padding:96px 0}
.sol .h2{text-wrap:balance;word-break:keep-all}
.sol-in{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:80px;align-items:center}
.sol.rev .sol-in{grid-template-columns:minmax(0,1fr) minmax(0,1.05fr)}
.sol.rev figure{order:2}
.sol figure{margin:0;aspect-ratio:3/2;overflow:hidden;border:1px solid var(--line);border-radius:6px;background:var(--panel);box-shadow:0 30px 60px -36px rgba(23,73,157,.35)}
.sol figure img{display:block;width:100%;height:100%;object-fit:cover}
.sol-desc{margin-top:18px;font-size:16px;line-height:1.9;color:var(--ink2)}
.sol-rec,.sol-use{margin-top:28px}
.sol-body h3{margin-bottom:12px;font-size:13px;font-weight:500;letter-spacing:.16em;color:var(--muted)}
.sol .points{margin-top:0}
.sol .chips li.is-link{padding:0}
.sol .chips li.is-link a{display:block;padding:6px 14px;color:var(--action);transition:color .25s}
.sol .chips li.is-link a::after{content:"→";margin-left:8px;display:inline-block;transition:transform .35s var(--ease)}
.sol .chips li.is-link a:hover{color:var(--brand)}
.sol .chips li.is-link a:hover::after{transform:translateX(4px)}
@media (max-width:1024px){
  .sol{padding:64px 0}
  .sol-in,.sol.rev .sol-in{grid-template-columns:1fr;gap:36px}
  .sol.rev figure{order:0}
}
@media (max-width:640px){
  .sol{padding:48px 0}
  .sol-in,.sol.rev .sol-in{gap:28px}
  .sol-desc{font-size:15px}
}

/* ---------- 模型矩阵 ---------- */
.vm-bar{display:flex;align-items:center;justify-content:space-between;gap:16px 24px;flex-wrap:wrap;margin-top:44px}
.vm-tabs{display:inline-flex;gap:4px;padding:4px;background:var(--bg);border:1px solid var(--line);border-radius:4px}
.vm-tab{height:40px;min-width:88px;padding:0 22px;font-size:15px;letter-spacing:.1em;color:var(--ink2);border-radius:2px;scroll-margin-top:24px;transition:background .3s var(--ease),color .3s var(--ease),box-shadow .3s var(--ease)}
.vm-tab:hover{color:var(--action)}
.vm-tab[aria-selected="true"]{background:var(--action);color:#fff;box-shadow:0 10px 22px -12px rgba(37,99,235,.7)}
.vm-tab:focus-visible{outline:2px solid var(--action);outline-offset:2px}
.vm-count{font-size:14px;color:var(--muted);letter-spacing:.06em}
.vm-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:24px}
.v-card{display:flex;flex-direction:column;gap:22px;padding:30px 30px 28px;background:#fff;border:1px solid var(--line);border-radius:6px;transition:transform .45s var(--ease),box-shadow .45s var(--ease),border-color .45s}
.v-card[hidden]{display:none!important}
.v-card:hover{transform:translateY(-6px);box-shadow:0 30px 60px -30px rgba(23,73,157,.35);border-color:#C9D8EC}
.v-card[data-kind="video"]{grid-column:1/-1;display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:22px 56px;align-items:start}
.v-top{display:flex;flex-direction:column;gap:18px}
.v-head{display:flex;align-items:center;gap:14px}
.v-mono{flex:none;width:52px;height:52px;border-radius:50%;border:1px solid #CFDBEA;background:rgba(255,255,255,.75);display:grid;place-items:center;font-family:var(--en);font-size:15px;font-weight:600;letter-spacing:.02em;color:var(--brand)}
.v-head h3{min-width:0;font-size:20px;font-weight:600;letter-spacing:.03em}
.v-kind{flex:none;margin-left:auto;font-size:12px;color:var(--action);border:1px solid rgba(37,99,235,.35);padding:1px 8px;border-radius:2px;letter-spacing:.1em}
.v-card .chips,.vm-table .chips{gap:8px}
.v-card .chips li,.vm-table .chips li{font-family:var(--en);font-size:13px;padding:5px 12px}
.v-body{display:flex;flex-direction:column;gap:22px;flex:1}
.v-desc{font-size:14px;line-height:1.85;color:var(--muted)}
.v-fit{margin-top:auto;padding-top:18px;border-top:1px solid var(--line)}
.v-fit h4{font-size:12px;font-weight:500;letter-spacing:.18em;color:var(--faint);margin-bottom:10px}
.v-fit ul{list-style:none;display:flex;flex-wrap:wrap;gap:8px}
.v-fit li{font-size:13px;line-height:1.6;padding:4px 12px;background:var(--cyan-soft);color:var(--brand);border-radius:2px}
.vm-guide{padding-bottom:48px}
.vm-table-wrap{margin-top:48px;background:#fff;border:1px solid var(--line);border-radius:6px;overflow:hidden}
.vm-table{width:100%;border-collapse:collapse;text-align:left}
.vm-table thead th{padding:18px 28px;font-size:13px;font-weight:500;letter-spacing:.14em;color:var(--muted);background:var(--bg);border-bottom:1px solid var(--line)}
.vm-table tbody tr{transition:background .25s}
.vm-table tbody tr:hover{background:#F8FAFD}
.vm-table tbody tr+tr{border-top:1px solid var(--line)}
.vm-table tbody th{width:18%;padding:26px 28px;vertical-align:top;font-size:17px;font-weight:600;letter-spacing:.03em;color:var(--ink)}
.vm-table td{padding:26px 28px;vertical-align:top;font-size:14px;line-height:1.9;color:var(--ink2)}
.vm-table td:nth-child(2){width:34%}
.vm-note-sec{padding:0 0 88px}
.vm-note{font-size:13px;line-height:1.8;letter-spacing:.04em;color:var(--faint)}
@media (max-width:1024px){
  .vm-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .v-card[data-kind="video"]{gap:22px 36px}
}
@media (max-width:720px){
  .vm-bar{margin-top:32px}
  .vm-tabs{width:100%}
  .vm-tab{flex:1;min-width:0;padding:0 8px}
  .vm-grid{grid-template-columns:1fr}
  .v-card{padding:26px 22px 24px}
  .v-head{gap:12px}
  .v-mono{width:44px;height:44px;font-size:14px}
  .v-head h3{font-size:18px}
  .v-card[data-kind="video"]{display:flex}
  .vm-guide{padding-bottom:32px}
  .vm-table-wrap{margin-top:36px}
  .vm-table thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
  .vm-table,.vm-table tbody,.vm-table tr,.vm-table th,.vm-table td{display:block}
  .vm-table tbody tr{padding:24px 22px 26px}
  .vm-table tbody th{width:auto;padding:0;font-size:18px}
  .vm-table td,.vm-table td:nth-child(2){width:auto;padding:0;margin-top:16px}
  .vm-table td::before{content:attr(data-label);display:block;margin-bottom:8px;font-size:12px;letter-spacing:.14em;color:var(--faint)}
  .vm-note-sec{padding-bottom:64px}
}