:root{--canvas:#fff;--surface:#f7fafd;--surface-alt:#f1f5fb;--ink:#041a38;--ink-secondary:#5f6b7c;--ink-tertiary:#8fa0b5;--accent:#1269ff;--accent-dark:#0d5be0;--accent-light:#eaf3ff;--accent-glow:#1269ff14;--success:#08796a;--success-light:#e6f5f2;--violet:#7b5cff;--violet-light:#efecff;--cyan:#14c0cc;--gradient-brand:linear-gradient(135deg, #1269ff 0%, #14c0cc 100%);--gradient-dark:linear-gradient(135deg, #092e58 0%, #041a38 72%, #071d42 100%);--border:#d8e4f2;--border-light:#e9f0f9;--shadow-sm:0 1px 3px #041a380d;--shadow-md:0 4px 12px #041a3814;--shadow-lg:0 8px 30px #041a381a;--radius:8px;--radius-lg:12px;--radius-xl:16px;--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--max-w:1200px;--section-gap:clamp(64px, 8vw, 96px)}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-sans);color:var(--ink);background:var(--canvas);-webkit-font-smoothing:antialiased;font-size:16px;line-height:1.6;overflow-x:hidden}a{color:var(--accent);text-decoration:none}a:hover{color:var(--accent-dark)}img{max-width:100%;height:auto}.nav{z-index:100;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border-light);background:#ffffffeb;position:sticky;top:0}.nav-inner{max-width:var(--max-w);justify-content:space-between;align-items:center;height:64px;margin:0 auto;padding:0 24px;display:flex}.nav-brand{color:var(--ink);align-items:center;gap:8px;font-size:18px;font-weight:700;display:flex}.nav-brand span{color:var(--accent)}.nav-links{align-items:center;gap:32px;display:flex}.nav-links a{color:var(--ink-secondary);font-size:14px;font-weight:500;transition:color .2s}.nav-links a:hover{color:var(--accent)}.nav-cta{background:var(--accent);border-radius:6px;align-items:center;gap:6px;padding:8px 18px;font-size:14px;font-weight:600;transition:background .2s,transform .15s;display:inline-flex;color:#fff!important}.nav-cta:hover{background:var(--accent-dark);transform:translateY(-1px)}.hero{text-align:center;background:linear-gradient(180deg, var(--canvas) 0%, var(--surface) 100%);padding:clamp(48px,6vw,72px) 24px clamp(40px,5vw,56px);position:relative;overflow:hidden}.hero:before{content:"";background:radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);pointer-events:none;width:800px;height:800px;position:absolute;top:-200px;left:50%;transform:translate(-50%)}.hero-badge{background:var(--accent-light);color:var(--accent);border-radius:20px;align-items:center;gap:6px;margin-bottom:24px;padding:6px 14px;font-size:13px;font-weight:600;display:inline-flex}.hero h1{letter-spacing:-.02em;color:var(--ink);margin-bottom:20px;font-size:clamp(32px,5vw,52px);font-weight:800;line-height:1.15}.hero-sub{color:var(--ink-secondary);max-width:620px;margin:0 auto;font-size:clamp(16px,2vw,19px);line-height:1.65}.btn-primary{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:8px;align-items:center;gap:6px;padding:14px 28px;font-size:16px;font-weight:600;transition:all .2s;display:inline-flex;box-shadow:0 4px 14px #2563eb40}.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 6px 20px #2563eb4d}.btn-secondary{background:var(--canvas);color:var(--ink);border:1px solid var(--border);cursor:pointer;border-radius:8px;align-items:center;gap:6px;padding:14px 28px;font-size:16px;font-weight:600;transition:all .2s;display:inline-flex}.btn-secondary:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}.case-library{padding:clamp(48px,6vw,72px) 24px}.case-library-inner{flex-direction:column;gap:28px;max-width:960px;margin:0 auto;display:flex}.case-study-card{border-radius:var(--radius-lg);border:1px solid var(--border);background:var(--canvas);box-shadow:var(--shadow-sm);grid-template-columns:1fr auto;align-items:center;gap:40px;padding:36px 40px;transition:all .25s;display:grid}.case-study-card:hover{border-color:var(--accent);transform:translateY(-3px);box-shadow:0 10px 32px #2563eb1f}.case-main{min-width:0}.case-tag{background:var(--accent-light);color:var(--accent);border-radius:4px;margin-bottom:14px;padding:4px 10px;font-size:12px;font-weight:600;display:inline-block}.case-study-card h3{color:var(--ink);margin-bottom:12px;font-size:21px;font-weight:700;line-height:1.35}.case-study-card .case-summary{color:var(--ink-secondary);margin-bottom:18px;font-size:14.5px;line-height:1.7}.case-more{color:var(--accent);align-items:center;gap:6px;font-size:14px;font-weight:600;transition:gap .2s;display:inline-flex}.case-study-card:hover .case-more{gap:10px}.case-key-metrics{border-left:1px solid var(--border-light);flex-direction:column;gap:18px;padding-left:36px;display:flex}.case-key-metric .metric-value{color:var(--accent);white-space:nowrap;font-size:22px;font-weight:800;line-height:1.2}.case-key-metric .metric-label{color:var(--ink-tertiary);white-space:nowrap;margin-top:2px;font-size:12.5px}.cta-section{padding:var(--section-gap) 24px;text-align:center;background:linear-gradient(180deg, var(--surface) 0%, var(--canvas) 100%)}.cta-section h2{margin-bottom:16px;font-size:clamp(24px,3.5vw,36px);font-weight:800}.cta-section p{color:var(--ink-secondary);max-width:480px;margin:0 auto 32px;font-size:16px;line-height:1.6}.hero-actions{flex-wrap:wrap;justify-content:center;gap:14px;display:flex}.footer{background:var(--ink);color:#ffffffb3;padding:48px 24px 32px}.footer-inner{max-width:var(--max-w);grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;margin:0 auto;display:grid}.footer-brand{color:#fff;margin-bottom:12px;font-size:18px;font-weight:700}.footer-desc{max-width:280px;font-size:14px;line-height:1.6}.footer h4{color:#fff;margin-bottom:16px;font-size:14px;font-weight:600}.footer-links{flex-direction:column;gap:10px;list-style:none;display:flex}.footer-links a{color:#fff9;font-size:14px;transition:color .2s}.footer-links a:hover{color:#fff}.footer-bottom{max-width:var(--max-w);border-top:1px solid #ffffff1a;justify-content:space-between;align-items:center;margin:32px auto 0;padding-top:24px;font-size:13px;display:flex}@media (max-width:1024px){.footer-inner{grid-template-columns:1fr 1fr}}@media (max-width:768px){.nav-links{display:none}.case-study-card{grid-template-columns:1fr;gap:28px;padding:28px 24px}.case-key-metrics{border-left:none;border-top:1px solid var(--border-light);flex-flow:wrap;gap:24px;padding-top:24px;padding-left:0}.case-key-metric{flex:30%}.footer-inner{grid-template-columns:1fr;gap:32px}.footer-bottom{text-align:center;flex-direction:column;gap:12px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}a:focus-visible,button:focus-visible,summary:focus-visible,details:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}@media print{.nav,.hero:before{display:none}.case-study-card{break-inside:avoid;box-shadow:none}}