:root{--navy:#123b5d;--navy-deep:#082941;--teal:#087e8b;--teal-soft:#e8f6f7;--orange:#f18f4e;--orange-soft:#fff1e6;--ink:#15354d;--muted:#667b8a;--line:#dbe8ee;--paper:#f6fafc;--white:#fff;--shadow:0 24px 70px rgba(18,59,93,.12);--max:1220px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;line-height:1.65;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,input,textarea{font:inherit}.container{width:min(var(--max),calc(100% - 48px));margin:0 auto}.nav-wrap{position:sticky;top:0;z-index:30;background:rgba(246,250,252,.9);border-bottom:1px solid rgba(219,232,238,.8);backdrop-filter:blur(18px)}.nav{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:inline-flex;align-items:center;gap:12px;font-weight:900;letter-spacing:.03em}.brand-mark{width:38px;height:38px;display:grid;place-items:center;border-radius:12px;color:#fff;background:linear-gradient(135deg,var(--navy),var(--teal));box-shadow:0 8px 20px rgba(8,126,139,.22)}.brand-name{font-size:17px;color:var(--navy)}.nav-links{display:flex;align-items:center;gap:28px;color:var(--muted);font-size:14px;font-weight:800}.nav-links a:hover{color:var(--teal)}.nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:999px;font-weight:900;transition:transform .2s ease,box-shadow .2s ease}.nav-cta{padding:11px 18px;background:var(--navy);color:#fff;font-size:14px}.btn{min-height:50px;padding:0 22px;font-size:15px;border:1px solid transparent;cursor:pointer}.btn:hover,.nav-cta:hover{transform:translateY(-2px)}.btn-primary{background:var(--orange);color:#fff;box-shadow:0 12px 26px rgba(241,143,78,.22)}.btn-secondary{background:rgba(255,255,255,.78);border-color:var(--line);color:var(--navy)}.eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--teal);font-size:13px;font-weight:900;letter-spacing:.13em;text-transform:uppercase}.eyebrow:before{content:"";width:24px;height:2px;background:var(--orange);border-radius:2px}.hero{position:relative;overflow:hidden;padding:72px 0 84px;background:radial-gradient(circle at 95% 8%,rgba(221,242,243,.95),transparent 28%),radial-gradient(circle at 3% 82%,rgba(227,240,250,.85),transparent 30%),var(--paper)}.hero:after{content:"";position:absolute;right:-150px;top:80px;width:360px;height:360px;border:1px solid rgba(8,126,139,.12);border-radius:50%;box-shadow:0 0 0 38px rgba(8,126,139,.04),0 0 0 78px rgba(8,126,139,.035)}.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr .9fr;align-items:center;gap:64px}.hero h1{max-width:720px;margin:18px 0 20px;color:var(--navy);font-size:clamp(42px,5.4vw,72px);line-height:1.08;letter-spacing:-.065em}.hero h1 em,.section-head em{font-style:normal;color:var(--teal)}.hero-copy>p{max-width:650px;margin:0;color:var(--muted);font-size:19px}.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}.hero-visual{position:relative;padding:16px;border:1px solid rgba(255,255,255,.9);border-radius:34px;background:rgba(255,255,255,.58);box-shadow:var(--shadow)}.hero-visual img{width:100%;border-radius:24px}.hero-note{display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:26px;color:#6d8190;font-size:13px;font-weight:800}.hero-note span:before{content:"✓";display:inline-grid;place-items:center;width:18px;height:18px;margin-right:7px;border-radius:50%;color:var(--teal);background:var(--teal-soft);font-size:12px}.breadcrumb{padding:24px 0 0;color:var(--muted);font-size:13px;font-weight:800}.section{padding:104px 0}.section-head{max-width:780px;margin-bottom:42px}.section-head h2{margin:13px 0 12px;color:var(--navy);font-size:clamp(32px,4.3vw,52px);line-height:1.15;letter-spacing:-.045em}.section-head p{margin:0;color:var(--muted);font-size:18px}.soft{background:#edf7f8}.dark{background:var(--navy-deep);color:#fff}.dark .section-head h2,.dark h2,.dark h3{color:#fff}.dark .section-head p,.dark p{color:#b9d1d9}.intro-band{padding:25px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff}.intro-band-grid{display:flex;align-items:center;justify-content:space-between;gap:22px;flex-wrap:wrap}.intro-band strong{color:var(--navy);font-size:17px}.problem-grid,.case-grid,.solution-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.problem-card,.case-card,.solution-card{padding:27px;border:1px solid var(--line);border-radius:22px;background:#fff;box-shadow:0 10px 30px rgba(18,59,93,.04)}.problem-card h3,.case-card h3,.solution-card h3{margin:0 0 9px;color:var(--navy);font-size:21px;line-height:1.3}.problem-card p,.case-card p,.solution-card p{margin:0;color:var(--muted);font-size:15px}.case-card{display:flex;flex-direction:column;min-height:300px}.case-card.featured{color:#fff;border-color:transparent;background:linear-gradient(145deg,var(--navy),var(--teal))}.case-card.featured h3{color:#fff;font-size:26px}.case-card.featured p{color:#c7dce3}.case-top,.card-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:25px;color:var(--muted);font-size:12px;font-weight:900}.case-card.featured .case-top{color:#bfe5e5}.status{padding:6px 9px;border-radius:999px;color:var(--teal);background:var(--teal-soft)}.case-card.featured .status{color:var(--navy);background:#86d2d1}.card-link{margin-top:auto;padding-top:22px;color:var(--teal);font-size:14px;font-weight:900}.case-card.featured .card-link{color:#a9e3e1}.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 28px}.filter-bar button{padding:10px 16px;border:1px solid var(--line);border-radius:999px;color:var(--muted);background:transparent;font-weight:900;cursor:pointer}.filter-bar button.active,.filter-bar button:hover{color:#fff;border-color:var(--navy);background:var(--navy)}.filter-empty{display:none;padding:28px;border:1px dashed #b7cbd4;border-radius:20px;color:var(--muted);background:rgba(255,255,255,.55)}.filter-empty.show{display:block}.case-card[data-hidden="true"]{display:none}.case-card .bullets{display:grid;gap:8px;margin:20px 0 0;padding:0;list-style:none;color:var(--muted);font-size:14px}.case-card .bullets li:before{content:"✓";margin-right:7px;color:var(--teal);font-weight:900}.status-legend{display:flex;flex-wrap:wrap;gap:18px;color:var(--muted);font-size:13px;font-weight:800}.status-legend span:before{content:"";display:inline-block;width:9px;height:9px;margin-right:7px;border-radius:50%;background:var(--teal)}.status-legend span:nth-child(2):before{background:var(--orange)}.status-legend span:nth-child(3):before{background:#9caeb7}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.step-card{position:relative;padding:24px;border-top:2px solid var(--teal);background:#fff}.step-no{display:block;margin-bottom:20px;color:var(--teal);font-weight:900;letter-spacing:.1em}.step-card h3{margin:0 0 8px;color:var(--navy);font-size:19px}.step-card p{margin:0;color:var(--muted);font-size:14px}.solution-card{display:flex;flex-direction:column;min-height:230px}.solution-card .solution-kicker{color:var(--teal);font-size:12px;font-weight:900;letter-spacing:.09em}.solution-card h3{margin-top:12px}.solution-card .card-link{margin-top:auto}.dept-flow{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;gap:14px;align-items:center}.dept-flow div{padding:22px;border:1px solid var(--line);border-radius:18px;background:#fff;text-align:center;color:var(--navy);font-weight:900}.dept-flow i{color:var(--orange);font-style:normal;font-size:24px;font-weight:900}.department-list{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.department{padding:22px;border:1px solid var(--line);border-radius:18px;background:#fff}.department strong{display:block;margin-bottom:6px;color:var(--navy);font-size:17px}.department span{color:var(--muted);font-size:13px}.contact-band{padding:86px 0 98px;background:linear-gradient(135deg,var(--navy),#0c526b);color:#fff}.contact-grid{display:grid;grid-template-columns:1fr .85fr;gap:60px;align-items:center}.contact-grid h2{margin:13px 0 14px;color:#fff;font-size:clamp(35px,4vw,54px);line-height:1.1;letter-spacing:-.04em}.contact-grid p{max-width:560px;margin:0;color:#c3dbe1;font-size:17px}.contact-form{padding:25px;border:1px solid rgba(255,255,255,.15);border-radius:22px;background:rgba(255,255,255,.1)}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.field{margin-bottom:12px}.field label{display:block;margin-bottom:6px;color:#d7e9ed;font-size:12px;font-weight:900}.field input,.field textarea{width:100%;padding:12px 13px;border:1px solid rgba(255,255,255,.2);border-radius:11px;outline:none;color:#fff;background:rgba(0,0,0,.12)}.field textarea{min-height:90px;resize:vertical}.field input::placeholder,.field textarea::placeholder{color:#aac6cd}.contact-form .btn{width:100%;border:0}.form-message{min-height:22px;margin:10px 0 0;color:#aee4db;font-size:13px;text-align:center}.form-footnote{margin-top:13px;color:#a9c8d0;font-size:11px;line-height:1.5;text-align:center}footer{padding:28px 0;color:#8ca4b0;background:#0b273d;font-size:12px}.footer-inner{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}.footer-brand{color:#dcecef;font-weight:900}@media(max-width:1050px){.hero-grid,.contact-grid{grid-template-columns:1fr}.hero-copy{max-width:800px}.hero-visual{max-width:820px}.department-list{grid-template-columns:repeat(2,1fr)}}@media(max-width:760px){.container{width:min(var(--max),calc(100% - 30px))}.nav{min-height:68px}.nav-links,.nav-cta{display:none}.brand-name{font-size:15px;white-space:nowrap}.hero{padding:50px 0 60px}.hero h1{font-size:43px;overflow-wrap:anywhere}.hero-copy>p{font-size:16px}.hero-actions{align-items:stretch;flex-direction:column}.hero-actions .btn{width:100%}.hero-note{display:grid}.section{padding:72px 0}.section-head{margin-bottom:30px}.section-head p{font-size:16px}.problem-grid,.case-grid,.solution-grid,.steps,.department-list{grid-template-columns:1fr}.dept-flow{grid-template-columns:1fr}.dept-flow i{transform:rotate(90deg);justify-self:center}.form-row{grid-template-columns:1fr;gap:0}.intro-band-grid{align-items:flex-start;flex-direction:column}.filter-bar{gap:8px}.filter-bar button{flex:1 1 auto}.case-card{min-height:0}}

/* High-end visual pass: cases index */
.nav-wrap{position:relative;top:auto;padding:18px 0 0;border:0;background:transparent;backdrop-filter:none}
.nav{min-height:62px;padding:0 18px;border:1px solid rgba(214,227,233,.95);border-radius:999px;background:rgba(255,255,255,.78);box-shadow:0 16px 40px rgba(18,59,93,.08)}
.nav-links{gap:24px;font-size:13px}.hero{padding:108px 0 126px}.hero-grid{gap:78px}.hero-visual{border-radius:30px;box-shadow:0 24px 80px rgba(18,59,93,.10)}.section{padding:126px 0}.case-grid{grid-template-columns:repeat(12,1fr);gap:28px}.case-card{grid-column:span 4;min-height:330px;padding:32px 0;border:0;border-top:1px solid var(--line);border-radius:0;box-shadow:none;background:transparent}.case-card.featured{grid-column:span 7;min-height:360px;padding:34px;border:0;border-radius:28px;background:linear-gradient(145deg,var(--navy),var(--teal));box-shadow:0 24px 70px rgba(18,59,93,.18)}.case-card:nth-child(2){grid-column:span 5;padding-left:28px;border-left:1px solid var(--line);border-top:0}.case-card:nth-child(n+3){margin-top:24px}.filter-bar{gap:8px}.filter-bar button{transition:transform .7s cubic-bezier(.32,.72,0,1),background .7s cubic-bezier(.32,.72,0,1)}.filter-bar button:hover{transform:translateY(-2px)}.problem-card,.solution-card{border:0;border-top:1px solid var(--line);border-radius:0;box-shadow:none;background:transparent}.step-card{padding:28px 0;background:transparent}.contact-band{padding:120px 0 132px}.case-card,.problem-card,.step-card{animation:premium-rise .8s cubic-bezier(.32,.72,0,1) both}@keyframes premium-rise{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}
@media (max-width:1050px){.case-card.featured,.case-card:nth-child(2),.case-card{grid-column:span 6}.case-card:nth-child(2){padding-left:0;border-left:0;border-top:1px solid var(--line)}}
@media (max-width:760px){.nav-wrap{padding-top:12px}.hero{padding:76px 0 94px}.section{padding:88px 0}.case-grid{display:grid;grid-template-columns:1fr;gap:0}.case-card.featured,.case-card:nth-child(2),.case-card{grid-column:span 1;margin-top:0;padding:28px 0;border:0;border-top:1px solid var(--line);border-radius:0;min-height:0}.case-card.featured{padding:28px;border-radius:24px}.contact-band{padding:88px 0 96px}}

/* Cases center direction reset: Precision Software / Cold Luxury */
:root{--navy:#0a1e2d;--teal:#53c5bd;--orange:#ff9361;--ink:#dce8ed;--muted:#9bb0bb;--line:rgba(213,235,240,.16);--paper:#07131e;--white:#f8fbfc}
body{color:var(--ink);background:var(--paper)}
.nav-wrap{background:transparent;border:0}.nav{border-color:rgba(213,235,240,.16);background:rgba(7,19,30,.82);box-shadow:0 18px 50px rgba(0,0,0,.22)}.brand-name{color:var(--white)}.nav-links{color:#a9c1c9}.nav-links a:hover{color:var(--teal)}.nav-cta{color:#07131e;background:var(--orange);box-shadow:0 12px 30px rgba(255,147,97,.2)}
.breadcrumb{color:#9fb5bf}.breadcrumb a:hover{color:var(--teal)}
.hero{background:radial-gradient(circle at 78% 22%,rgba(26,116,122,.24),transparent 29%),radial-gradient(circle at 8% 82%,rgba(255,147,97,.1),transparent 25%),#07131e}.hero:after{border-color:rgba(83,197,189,.16);box-shadow:0 0 0 46px rgba(83,197,189,.035),0 0 0 92px rgba(83,197,189,.02)}.hero h1{color:var(--white)}.hero-copy>p{color:var(--muted)}.hero-visual{border-color:rgba(255,255,255,.14);background:rgba(255,255,255,.055);box-shadow:0 30px 90px rgba(0,0,0,.28)}.hero-visual h2{color:var(--white)!important}.hero-visual p{color:var(--muted)!important}.hero-visual .dept-flow div{color:var(--white);border-color:var(--line);background:rgba(255,255,255,.06)}
.intro-band{border-color:var(--line);background:#0a1e2d}.intro-band strong{color:var(--white)}.status-legend{color:var(--muted)}
.section{background:#07131e}.section.soft{background:#0a1e2d}.section-head h2{color:var(--white)}.section-head p{color:var(--muted)}
.filter-bar button{border-color:var(--line);color:var(--muted);background:rgba(255,255,255,.035)}.filter-bar button.active,.filter-bar button:hover{color:#07131e;border-color:var(--orange);background:var(--orange)}.filter-empty{border-color:rgba(213,235,240,.2);color:var(--muted);background:rgba(255,255,255,.035)}
.case-card{border-color:var(--line);background:transparent}.case-card h3{color:var(--white)}.case-card p,.case-card .bullets{color:var(--muted)}.case-card .case-top{color:var(--muted)}.case-card.featured{border-color:transparent;background:linear-gradient(145deg,#102f40,#0d6367);box-shadow:0 26px 70px rgba(0,0,0,.28)}.case-card.featured p,.case-card.featured .case-top{color:#c4d9dc}.case-card .status{color:var(--teal);background:rgba(83,197,189,.12)}.case-card.featured .status{color:#07131e;background:var(--teal)}.card-link{color:var(--teal)}.case-card.featured .card-link{color:#b9eeea}
.step-card{border-color:var(--line);background:transparent}.step-card h3{color:var(--white)}.step-card p{color:var(--muted)}.step-no{color:var(--teal)}
.contact-band{background:linear-gradient(135deg,#102f40,#0a1e2d,#0d6367)}footer{background:#06131f;color:#78919c;border-top:1px solid rgba(255,255,255,.08)}.footer-brand{color:#e3f0f2}