:root{--blue:#0047FF;--blue2:#006CFF;--deep:#071A45;--ink:#24304A;--muted:#667085;--soft:#EEF4FF;--light:#F7FAFF;--line:#D9E4FF;--gold:#F5B544;--white:#fff;--shadow:0 18px 50px rgba(7,26,69,.12);--radius:24px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);line-height:1.72;background:#fff}a{text-decoration:none;color:inherit}.container{width:1180px;max-width:calc(100% - 48px);margin:0 auto}
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.nav-inner{height:82px;display:flex;align-items:center;justify-content:space-between;gap:28px}.brand{display:flex;align-items:center;gap:14px;color:var(--deep);font-size:25px;font-weight:1000;white-space:nowrap}.logo{width:60px;height:60px;border-radius:18px;background:linear-gradient(135deg,var(--blue),#00A3FF);display:grid;place-items:center;color:#fff;font-size:36px;font-weight:1000;box-shadow:0 14px 30px rgba(0,71,255,.25)}.nav-links{display:flex;align-items:center;gap:18px;font-size:19px;font-weight:1000;color:#15244A;white-space:nowrap}.nav-item{position:relative}.nav-main{display:inline-flex;align-items:center;gap:7px;padding:16px 9px;position:relative;letter-spacing:.01em}.nav-main:after{content:"";position:absolute;left:8px;right:8px;bottom:8px;height:3px;border-radius:999px;background:var(--blue);transform:scaleX(0);transition:.22s}.nav-main:before{content:"▾";font-size:12px;color:var(--blue);order:2;transform:translateY(1px);transition:.22s}.nav-item:hover .nav-main{color:var(--blue)}.nav-item:hover .nav-main:after{transform:scaleX(1)}.nav-item:hover .nav-main:before{transform:translateY(1px) rotate(180deg)}.dropdown{position:absolute;left:50%;top:100%;transform:translateX(-50%) translateY(12px);min-width:258px;background:#fff;border:1px solid var(--line);border-radius:20px;padding:12px;box-shadow:0 22px 60px rgba(7,26,69,.16);opacity:0;visibility:hidden;pointer-events:none;transition:.2s;z-index:80}.nav-item:hover .dropdown{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0)}.dropdown:before{content:"";position:absolute;top:-8px;left:50%;width:16px;height:16px;background:#fff;border-left:1px solid var(--line);border-top:1px solid var(--line);transform:translateX(-50%) rotate(45deg)}.dropdown a{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px 14px;border-radius:14px;color:#263A63;font-size:15px;font-weight:850;line-height:1.35}.dropdown a:hover{background:var(--soft);color:var(--blue)}.dropdown a:after{content:"→";color:#99A7C2;font-weight:900}.nav-cta{padding:13px 22px;border-radius:999px;background:var(--blue);color:#fff;font-size:17px;font-weight:950;box-shadow:0 12px 28px rgba(0,71,255,.22)}
.hero{position:relative;overflow:hidden;background:radial-gradient(circle at 22% 8%,#2D6BFF 0,#0047FF 30%,#071A45 78%);color:#fff;padding:96px 0 92px}.hero:before{content:"";position:absolute;right:-180px;top:-160px;width:620px;height:620px;border-radius:50%;background:rgba(255,255,255,.08)}.hero:after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:80px;background:linear-gradient(to top,#fff,rgba(255,255,255,0))}.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.08fr .92fr;gap:58px;align-items:center}.eyebrow{display:inline-flex;padding:9px 16px;border-radius:999px;border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.12);font-size:15px;margin-bottom:22px}.hero h1{font-size:28px;letter-spacing:.08em;margin:0 0 12px;font-weight:950;color:rgba(255,255,255,.92)}.hero .brand-title{font-size:76px;line-height:1.02;font-weight:1000;letter-spacing:-.04em;margin:0 0 22px;color:#fff}.hero .lead{font-size:22px;line-height:1.78;color:rgba(255,255,255,.92);margin:0 0 28px;max-width:760px}.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin:30px 0 22px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:15px 26px;border-radius:999px;font-weight:950;transition:.22s;border:1px solid transparent}.btn-primary{background:#fff;color:var(--blue);box-shadow:0 16px 40px rgba(0,0,0,.18)}.btn-outline{border-color:rgba(255,255,255,.42);color:#fff;background:rgba(255,255,255,.08)}.btn-blue{background:var(--blue);color:#fff;box-shadow:0 14px 32px rgba(0,71,255,.22)}.btn:hover{transform:translateY(-3px)}.hero-tags{display:flex;flex-wrap:wrap;gap:10px}.hero-tag{padding:8px 13px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.16);font-size:14px;color:rgba(255,255,255,.9)}.hero-panel{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);border-radius:32px;padding:30px;box-shadow:0 30px 80px rgba(0,0,0,.20);backdrop-filter:blur(10px)}.hero-panel h2{margin:0 0 20px;font-size:24px;color:#fff}.hero-metrics{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.hero-metric{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.16);border-radius:20px;padding:22px}.hero-metric strong{display:block;font-size:34px;line-height:1;color:#fff;margin-bottom:8px}.hero-metric span{font-size:14px;color:rgba(255,255,255,.78)}.hero-note{margin-top:18px;background:#fff;color:var(--deep);border-radius:22px;padding:20px;border-left:5px solid var(--gold);font-size:16px}
section{padding:82px 0}.bg-light{background:linear-gradient(180deg,#F8FBFF 0,#fff 100%)}.bg-blue-soft{background:linear-gradient(180deg,#EEF4FF 0,#fff 100%)}.section-head{margin-bottom:36px}.section-kicker{font-size:13px;letter-spacing:.09em;text-transform:uppercase;color:var(--blue);font-weight:950;margin-bottom:10px}h2{font-size:38px;line-height:1.22;margin:0;color:var(--deep);letter-spacing:-.02em}.section-desc{font-size:18px;color:var(--muted);max-width:960px;margin:12px 0 0}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.card,.service-card,.case-card,.office-item,.proof-card,.value-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:0 12px 34px rgba(7,26,69,.06);transition:.22s}.card:hover,.service-card:hover,.case-card:hover,.office-item:hover,.proof-card:hover,.value-card:hover{transform:translateY(-5px);box-shadow:0 20px 48px rgba(7,26,69,.12);border-color:#BBD0FF}.card h3,.service-card h3,.case-card h3,.proof-card h3,.value-card h3{font-size:21px;margin:0 0 10px;color:var(--deep)}.card p,.service-card p,.case-card p,.proof-card p,.value-card p{margin:0;color:var(--muted)}.answer-box{background:#fff;border:1px solid var(--line);border-left:6px solid var(--blue);border-radius:30px;padding:34px 38px;box-shadow:var(--shadow);font-size:19px;color:#2E3B56}.answer-box strong{color:var(--deep)}
.value-band{display:grid;grid-template-columns:1.05fr .95fr;gap:26px;align-items:stretch}.blue-panel{background:linear-gradient(135deg,#071A45,#0047FF);color:#fff;border-radius:32px;padding:34px;box-shadow:0 28px 70px rgba(0,71,255,.2)}.blue-panel h3{font-size:30px;margin:0 0 14px;color:#fff}.blue-panel p{color:rgba(255,255,255,.86);margin:0 0 20px}.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.stat{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.14);border-radius:20px;padding:20px}.stat strong{display:block;font-size:32px;color:#fff;line-height:1}.stat span{color:rgba(255,255,255,.76);font-size:14px}.rich-list{display:grid;gap:14px}.rich-item{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px}.rich-item:before{content:"✓";width:28px;height:28px;border-radius:50%;background:var(--blue);color:#fff;display:grid;place-items:center;flex:0 0 28px;font-weight:950}.rich-item strong{display:block;color:var(--deep);margin-bottom:3px}.rich-item span{color:var(--muted)}
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.service-card{min-height:180px}.service-card h3{display:flex;align-items:center;gap:10px}.service-card h3:before{content:"";width:10px;height:10px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 6px var(--soft)}
.process-wrap{display:grid;gap:18px}.process-step{display:grid;grid-template-columns:76px 1fr;gap:20px;align-items:start;background:#fff;border:1px solid var(--line);border-radius:24px;padding:24px;box-shadow:0 12px 34px rgba(7,26,69,.06)}.process-step b{width:56px;height:56px;border-radius:18px;background:var(--blue);color:#fff;display:grid;place-items:center;font-size:20px;box-shadow:0 12px 26px rgba(0,71,255,.22)}.process-step h3{margin:0 0 6px;color:var(--deep);font-size:22px}.process-step p{margin:0;color:var(--muted)}
.office-wrap{display:grid;grid-template-columns:.95fr 1.05fr;gap:28px;align-items:start}.office-photo{background:#fff;border:1px solid var(--line);border-radius:30px;overflow:hidden;box-shadow:var(--shadow)}.office-photo img{display:block;width:100%;height:430px;object-fit:cover}.office-caption{padding:18px 22px;color:var(--muted);font-size:15px}.office-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;max-height:560px;overflow:auto;padding-right:4px}.office-item{padding:18px;border-left:4px solid var(--blue)}.office-item.hq{border-left-color:var(--gold);background:linear-gradient(135deg,#fff,#FFF8EA)}.office-city{font-weight:950;color:var(--deep);font-size:17px;margin-bottom:6px;display:flex;align-items:center;gap:8px}.office-city span{font-size:12px;background:var(--gold);color:#402500;border-radius:999px;padding:3px 8px}.office-item p{margin:0;color:var(--muted);font-size:14px}
.case-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.case-tag{display:inline-flex;background:var(--soft);color:var(--blue);padding:6px 10px;border-radius:999px;font-weight:950;font-size:13px;margin-bottom:12px}.case-card a{display:inline-flex;margin-top:16px;color:var(--blue);font-weight:950}.case-card a:after{content:"→";margin-left:6px}.proof-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.proof-card{background:linear-gradient(180deg,#fff,#F8FBFF)}.qualification-text{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.qualification-text .value-card{min-height:210px}.faq{display:grid;gap:14px}.faq details{background:#fff;border:1px solid var(--line);border-radius:20px;padding:0;overflow:hidden}.faq summary{cursor:pointer;list-style:none;padding:22px 56px 22px 24px;font-size:19px;font-weight:950;color:var(--deep);position:relative}.faq summary:after{content:"+";position:absolute;right:24px;top:50%;transform:translateY(-50%);width:28px;height:28px;border-radius:50%;background:var(--soft);color:var(--blue);display:grid;place-items:center}.faq details[open] summary:after{content:"−";background:var(--blue);color:#fff}.faq p{margin:0;padding:0 24px 22px;color:var(--muted)}
.cta-section{background:linear-gradient(135deg,#071A45,#0047FF);color:#fff;padding:86px 0}.cta-wrap{display:grid;grid-template-columns:1fr 480px;gap:48px;align-items:center}.cta-section h2{color:#fff}.cta-section p{color:rgba(255,255,255,.86);font-size:18px}.form{background:#fff;border-radius:30px;padding:30px;box-shadow:0 30px 80px rgba(0,0,0,.22)}.form h3{color:var(--deep);margin:0 0 18px;font-size:23px}.input{width:100%;border:1px solid var(--line);border-radius:14px;padding:14px 15px;margin-bottom:12px;font:inherit}textarea.input{height:116px;resize:vertical}.submit{width:100%;border:0;border-radius:999px;background:var(--blue);color:#fff;font-size:17px;font-weight:950;padding:15px;cursor:pointer}.form-note{font-size:13px;color:var(--muted);margin-top:12px}footer{background:#06112F;color:rgba(255,255,255,.72);padding:28px 0}.footer-inner{display:flex;justify-content:space-between;gap:18px;align-items:center}.floating{position:fixed;right:22px;bottom:22px;z-index:60;display:flex;flex-direction:column;gap:10px}.float-btn{min-width:168px;text-align:center;background:var(--blue);color:#fff;border-radius:999px;padding:13px 20px;font-weight:950;box-shadow:0 12px 28px rgba(0,71,255,.28)}.float-phone{background:var(--deep)}
@media(max-width:1100px){.nav-links{display:none}.hero-grid,.value-band,.office-wrap,.cta-wrap{grid-template-columns:1fr}.service-grid,.grid-3,.case-grid,.proof-grid,.qualification-text{grid-template-columns:repeat(2,1fr)}.hero .brand-title{font-size:58px}}
@media(max-width:760px){.container{max-width:calc(100% - 32px)}.hero{padding:68px 0}.hero .brand-title{font-size:46px}.hero .lead{font-size:18px}h2{font-size:29px}section{padding:60px 0}.service-grid,.grid-2,.grid-3,.grid-4,.case-grid,.proof-grid,.qualification-text,.stats-row,.office-grid,.hero-metrics{grid-template-columns:1fr}.process-step{grid-template-columns:1fr}.office-photo img{height:260px}.footer-inner{flex-direction:column;align-items:flex-start}.floating{display:none}.btn{width:100%}}

/* dropdown navigation and advantages enhancement */
.qualification-text{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.qualification-text .value-card{min-height:210px}.qualification-text .value-card h3{font-size:21px}.qualification-text .value-card p{font-size:15.8px;line-height:1.78}@media(max-width:1100px){.nav-links{gap:10px;font-size:16px}.dropdown{display:none}.qualification-text{grid-template-columns:repeat(2,1fr)}}@media(max-width:760px){.nav-links{display:none}.qualification-text{grid-template-columns:1fr}}