:root{--bg:#f4f7fb;--surface:#fff;--ink:#172033;--muted:#5f6f86;--line:#dfe6f1;--primary:#2453c5;--primary-dark:#163d91;--accent:#0f8f82;--warm:#d4951f;--warm-soft:#fff4d8;--mint-soft:#e9f7f5;--blue-soft:#eaf0ff;--shadow:0 18px 45px #18264a17;--radius:8px;color:var(--ink);background:var(--bg);scroll-behavior:smooth;font-family:Microsoft YaHei,PingFang SC,Arial,sans-serif}*{box-sizing:border-box}body{background:linear-gradient(180deg, #f9fbff 0, var(--bg) 520px, #fff 100%);margin:0}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.site-header{z-index:10;border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#ffffffeb;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:20px;padding:12px clamp(18px,5vw,56px);display:grid;position:sticky;top:0}.brand{gap:2px;min-width:0;font-weight:800;display:grid}.brand span{color:var(--primary);font-size:20px}.brand small{color:var(--muted);font-size:12px}nav{color:var(--muted);white-space:nowrap;scrollbar-width:none;justify-content:center;gap:18px;font-size:14px;display:flex;overflow-x:auto}nav::-webkit-scrollbar{display:none}nav a:hover,nav a:focus{color:var(--primary)}.nav-cta,.button{min-height:42px;font:inherit;cursor:pointer;white-space:nowrap;border:0;border-radius:6px;justify-content:center;align-items:center;padding:0 18px;font-weight:700;display:inline-flex}.nav-cta,.button.primary{background:var(--primary);color:#fff;box-shadow:0 10px 24px #2453c52e}.button.primary:hover,.nav-cta:hover{background:var(--primary-dark)}.button.secondary{color:var(--primary);background:var(--blue-soft)}.section,.section-band{padding:clamp(52px,8vw,92px) clamp(18px,5vw,56px)}.section{background:var(--surface)}.section-band{background:var(--bg)}.hero{border-bottom:1px solid var(--line);background:linear-gradient(135deg,#f9fbff 0%,#eef8f5 58%,#fff8ea 100%);grid-template-columns:minmax(0,1fr) minmax(320px,520px);align-items:center;gap:clamp(26px,5vw,64px);min-height:calc(100vh - 72px);padding-bottom:clamp(42px,7vw,76px);display:grid}.hero h1,.section-heading h2,.split-section h2{letter-spacing:0;margin:0;line-height:1.18}.hero h1{max-width:760px;font-size:clamp(36px,6vw,64px)}.hero p,.split-section p{max-width:680px;color:var(--muted);font-size:17px;line-height:1.85}.hero-media{position:relative}.hero-image{aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius);border:1px solid var(--line);background:#dfe6f1;width:100%;box-shadow:0 24px 58px #18264a2e}.hero-ribbon{color:#fff;border-radius:var(--radius);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#10234fe6;border:1px solid #ffffff38;gap:4px;width:min(320px,100% - 36px);padding:14px 16px;display:grid;position:absolute;bottom:18px;right:18px}.hero-ribbon strong{font-size:16px}.hero-ribbon span{color:#dbe6ff;font-size:13px;line-height:1.6}.hero-proof{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;max-width:720px;margin-top:24px;display:grid}.hero-proof>div{border:1px solid #dfe6f1d1;border-left:4px solid var(--accent);border-radius:var(--radius);background:#ffffffad;gap:4px;min-height:74px;padding:12px 14px;display:grid}.hero-proof>div:nth-child(2){border-left-color:var(--primary)}.hero-proof>div:nth-child(3){border-left-color:var(--warm)}.hero-proof strong{color:var(--ink);font-size:22px}.hero-proof span{color:var(--muted);overflow-wrap:anywhere;line-height:1.5}.eyebrow{color:var(--accent);margin:0 0 10px;font-size:13px;font-weight:800}.actions,.process{flex-wrap:wrap;gap:12px;margin-top:24px;display:flex}.section-heading{text-align:center;max-width:760px;margin:0 auto 28px}.section-heading>p:not(.eyebrow){max-width:680px;color:var(--muted);margin:12px auto 0;line-height:1.8}.section-heading h2,.split-section h2{font-size:clamp(28px,4vw,42px)}.service-grid,.cards-grid,.contact-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;max-width:1180px;margin:0 auto;display:grid}.cards-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.cards-grid .card img{aspect-ratio:4/3}.service-item,.card,.about-card,.contact-grid>div{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 10px 30px #18264a0f}.service-item{border-top:4px solid var(--blue-soft);padding:22px}.service-item:nth-child(3n+2){border-top-color:var(--mint-soft)}.service-item:nth-child(3n){border-top-color:var(--warm-soft)}.service-item h3,.card h3{margin:0 0 10px}.service-item p,.card p{color:var(--muted);line-height:1.7}.card{overflow:hidden}.card:hover,.pricing-card:hover,.cooperation-note:hover{box-shadow:var(--shadow);transform:translateY(-2px)}.card,.pricing-card,.cooperation-note{transition:transform .18s,box-shadow .18s}.card img{aspect-ratio:16/10;object-fit:contain;background:#eaf0ff;width:100%}.card-body{padding:20px}.card-category,.price{color:var(--primary);font-weight:800}.card ul,.about-card ul{color:var(--muted);margin:14px 0 0;padding-left:18px;line-height:1.8}.price{margin-top:12px;display:inline-block}.card-actions{gap:10px;margin-top:18px;display:flex}.detail-dialog{width:min(780px,100vw - 32px);max-width:780px;max-height:calc(100vh - 32px);color:var(--ink);border:1px solid var(--line);border-radius:var(--radius);padding:0;overflow:hidden;box-shadow:0 28px 80px #10234f3d}.detail-dialog::backdrop{background:#10234f75}.detail-layout{grid-template-columns:minmax(220px,.82fr) minmax(0,1.18fr);max-height:calc(100vh - 32px);display:grid}.detail-layout>img{object-fit:contain;background:var(--bg);width:100%;height:100%;min-height:420px}.detail-copy{padding:28px;overflow-y:auto}.detail-copy h2{margin:0;font-size:clamp(26px,4vw,38px);line-height:1.2}.detail-copy>p:not(.eyebrow){color:var(--muted);line-height:1.75}.detail-facts{gap:10px;margin-top:20px;display:grid}.detail-fact{border:1px solid var(--line);background:var(--bg);border-radius:6px;gap:5px;padding:12px;display:grid}.detail-fact span,.detail-label{color:var(--muted);margin:0;font-size:13px;font-weight:700}.detail-fact strong{line-height:1.6}.detail-highlights{margin-top:20px}.detail-highlights ul{color:var(--muted);margin:8px 0 0;padding-left:18px;line-height:1.8}.dialog-actions{flex-wrap:wrap;align-items:center;gap:10px;margin-top:24px;display:flex}.dialog-actions form{margin:0}.split-section{grid-template-columns:minmax(0,.95fr) minmax(320px,.75fr);align-items:start;gap:clamp(24px,5vw,60px);display:grid}.trust-strip{background:#10234f;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;padding:0 clamp(18px,5vw,56px);display:grid}.trust-strip article{color:#fff;border-right:1px solid #ffffff1f;gap:8px;min-height:120px;padding:26px clamp(18px,3vw,36px);display:grid}.trust-strip article:last-child{border-right:0}.trust-strip strong{font-size:20px}.trust-strip span{color:#b9c8e8;line-height:1.7}.pricing-section{background:#f7f8f2}.pricing-layout,.cooperation-flow,.cooperation-grid,.faq-list{max-width:1180px;margin:0 auto}.pricing-layout{grid-template-columns:minmax(0,1fr) minmax(300px,.34fr);gap:18px;display:grid}.pricing-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;display:grid}.pricing-card,.pricing-notes,.cooperation-note,.faq-item{border:1px solid var(--line);border-radius:var(--radius)}.pricing-card{border-top:4px solid var(--primary);background:#fff;align-content:start;gap:14px;min-height:360px;padding:22px;display:grid}.pricing-card:nth-child(2){border-top-color:var(--accent)}.pricing-card:nth-child(3){border-top-color:var(--warm)}.pricing-card h3,.pricing-notes h3,.cooperation-note h3,.flow-step h3{margin:0}.pricing-card p,.pricing-notes li,.cooperation-note p,.flow-step p,.faq-item p{color:var(--muted);line-height:1.75}.price-label{min-height:32px;color:var(--primary);background:var(--blue-soft);border-radius:6px;justify-self:start;align-items:center;margin:0;padding:0 10px;font-weight:800;display:inline-flex}.pricing-card ul{margin:0;padding-left:18px;line-height:1.8}.pricing-card .button{align-self:end;margin-top:8px}.pricing-notes{color:#fff;background:#10234f;align-content:start;gap:14px;padding:24px;display:grid}.pricing-notes h3{color:#fff}.pricing-notes ul{margin:0;padding-left:18px}.pricing-notes li{color:#c8d6f2}.cooperation-intro{text-align:center;max-width:760px;margin:clamp(42px,6vw,70px) auto 24px}.cooperation-intro h2{margin:0;font-size:clamp(28px,4vw,42px)}.cooperation-intro p:not(.eyebrow){color:var(--muted);line-height:1.8}.cooperation-flow{grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-bottom:18px;display:grid}.flow-step{border:1px solid var(--line);border-radius:var(--radius);background:#fff;gap:10px;padding:18px;display:grid}.flow-step span,.note-index{color:var(--warm);letter-spacing:0;font-weight:900}.cooperation-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;display:grid}.cooperation-note{background:#fff;gap:12px;min-height:260px;padding:22px;display:grid}.note-tags{flex-wrap:wrap;align-self:end;gap:8px;display:flex}.note-tags span{color:#22564f;background:var(--mint-soft);border-radius:6px;min-height:28px;padding:5px 9px;font-size:13px;font-weight:700}.process span,.solution-tags span{border:1px solid var(--line);min-height:34px;color:var(--muted);background:#fff;border-radius:999px;align-items:center;padding:0 12px;font-size:14px;font-weight:700;display:inline-flex}.lead-form{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);gap:14px;padding:22px;display:grid;box-shadow:0 10px 30px #18264a14}.lead-form label{color:var(--muted);gap:7px;font-size:14px;font-weight:700;display:grid}input,select,textarea{border:1px solid var(--line);width:100%;color:var(--ink);font:inherit;background:#fff;border-radius:6px;padding:12px 13px}textarea{resize:vertical}[aria-invalid=true]{border-color:#d93025}.form-status{min-height:24px;color:var(--primary);margin:0;font-weight:700}.solution-tags{flex-wrap:wrap;justify-content:center;gap:12px;max-width:940px;margin:0 auto;display:flex}.about-card{padding:24px}.faq-section{background:#fff}.faq-list{gap:12px;max-width:920px;display:grid}.faq-item{background:#fff;box-shadow:0 8px 24px #18264a0d}.faq-item summary{min-height:60px;color:var(--ink);cursor:pointer;padding:18px 20px;font-weight:800}.faq-item p{margin:0;padding:0 20px 20px}.contact-grid>div{gap:8px;padding:20px;display:grid}.wechat-card{grid-row:span 2}.wechat-card img,.footer-contact img{aspect-ratio:1;object-fit:cover;border:1px solid var(--line);background:#fff;border-radius:6px;width:120px}.contact-grid strong{color:var(--primary)}.contact-grid span{color:var(--muted);overflow-wrap:anywhere}.site-footer{color:#dbe6ff;background:#10234f;grid-template-columns:minmax(0,1fr) auto auto;align-items:center;gap:28px;padding:30px clamp(18px,5vw,56px);display:grid}.footer-brand,.footer-contact{gap:6px;display:grid}.footer-brand strong{color:#fff;font-size:20px}.footer-brand span,.footer-brand p,.footer-copy,.footer-contact span{color:#aebfe5;margin:0}.footer-links{color:#dbe6ff;justify-content:flex-start}.footer-links a:hover,.footer-links a:focus{color:#fff}.footer-contact{grid-template-columns:auto minmax(0,1fr);align-items:center}.footer-contact strong{color:#fff}.footer-copy{grid-column:1/-1;font-size:13px}@media (width<=980px){.site-header{grid-template-columns:1fr auto}nav{grid-column:1/-1;justify-content:flex-start;padding-bottom:4px}.hero,.split-section,.service-grid,.cards-grid,.contact-grid,.pricing-layout,.pricing-grid,.cooperation-flow,.cooperation-grid,.site-footer{grid-template-columns:1fr}.hero{min-height:auto}.trust-strip{grid-template-columns:1fr}.trust-strip article{border-bottom:1px solid #ffffff1f;border-right:0;min-height:auto}.trust-strip article:last-child{border-bottom:0}.pricing-card,.cooperation-note{min-height:auto}}@media (width<=560px){.site-header{gap:12px;position:static}.nav-cta{min-height:38px;padding:0 12px;font-size:13px}.hero h1{font-size:34px}.actions,.hero-proof{grid-template-columns:1fr;display:grid}.hero-ribbon{width:auto;color:var(--ink);border-color:var(--line);background:#fff;margin-top:12px;position:static}.hero-ribbon span{color:var(--muted)}.wechat-card img,.footer-contact img{width:104px}.cards-grid .card img{aspect-ratio:1}.detail-layout{max-height:calc(100vh - 32px);display:block;overflow-y:auto}.detail-layout>img{height:min(72vw,320px);min-height:0}.detail-copy{padding:22px}}
