:root{--color-primary: #0B2545;--color-primary-hover: #163966;--color-secondary: #1E4E8C;--color-accent: #2563EB;--color-accent-hover: #1D4ED8;--color-accent-purple: #7C3AED;--color-success: #059669;--color-warning: #D97706;--color-dark-bg: #0F172A;--color-dark-surface: #1E293B;--color-dark-border: rgba(255,255,255,.08);--color-bg: #FFFFFF;--color-bg-alt: #F5F8FF;--color-surface: #F8FAFC;--color-surface-hover: #F1F5F9;--color-ink: #0F172A;--color-text: #334155;--color-muted: #64748B;--color-faint: #94A3B8;--color-border: #E2E8F0;--color-border-light: #F1F5F9;--font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, "Source Han Sans CN", "Noto Sans CJK SC", sans-serif;--font-mono: "JetBrains Mono", "SF Mono", Consolas, Menlo, monospace;--fs-h1: clamp(2.5rem, 5vw, 3.75rem);--fs-h2: clamp(1.875rem, 3vw, 2.75rem);--fs-h3: clamp(1.375rem, 2vw, 1.875rem);--fs-h4: 1.25rem;--fs-body-lg: 1.125rem;--fs-body: 1rem;--fs-sm: .875rem;--fs-xs: .75rem;--fs-mono: .875rem;--lh-tight: 1.2;--lh-snug: 1.35;--lh-normal: 1.6;--lh-loose: 1.75;--fw-bold: 700;--fw-semibold: 600;--fw-medium: 500;--fw-regular: 400;--sp-1: 4px;--sp-2: 8px;--sp-3: 12px;--sp-4: 16px;--sp-5: 20px;--sp-6: 24px;--sp-8: 32px;--sp-10: 40px;--sp-12: 48px;--sp-16: 64px;--sp-20: 80px;--sp-24: 96px;--container-max: 1200px;--container-narrow: 880px;--container-text: 720px;--gutter: 24px;--gutter-mobile: 16px;--nav-height: 72px;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 24px;--radius-full: 9999px;--shadow-sm: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);--shadow-md: 0 4px 12px rgba(0,0,0,.08), 0 2px 4px rgba(0,0,0,.04);--shadow-lg: 0 10px 40px rgba(0,0,0,.1), 0 4px 12px rgba(0,0,0,.05);--shadow-xl: 0 20px 60px rgba(0,0,0,.12);--shadow-card: 0 1px 3px rgba(0,0,0,.04), 0 4px 16px rgba(0,0,0,.06);--shadow-accent: 0 4px 16px rgba(37,99,235,.25);--ease-out: cubic-bezier(.16, 1, .3, 1);--ease-in-out: cubic-bezier(.45, 0, .55, 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fadeIn{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeInLeft{0%{opacity:0;transform:translate(-20px)}to{opacity:1;transform:translate(0)}}@keyframes fadeInRight{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}@keyframes scaleIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.animate{opacity:0}.animate.is-visible{animation:fadeIn .6s var(--ease-out) forwards}.animate-left{opacity:0}.animate-left.is-visible{animation:fadeInLeft .6s var(--ease-out) forwards}.animate-right{opacity:0}.animate-right.is-visible{animation:fadeInRight .6s var(--ease-out) forwards}.stagger>*:nth-child(1){animation-delay:0ms}.stagger>*:nth-child(2){animation-delay:80ms}.stagger>*:nth-child(3){animation-delay:.16s}.stagger>*:nth-child(4){animation-delay:.24s}.stagger>*:nth-child(5){animation-delay:.32s}.stagger>*:nth-child(6){animation-delay:.4s}@media (max-width: 768px){.container{padding:0 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var(--gutter)}.nav__logo{display:flex;align-items:center;gap:10px;font-size:1.125rem;font-weight:var(--fw-bold);color:#f1f5f9;letter-spacing:-.01em}.nav__logo-mark{width:34px;height:34px;background:linear-gradient(135deg,var(--color-accent) 0%,var(--color-accent-purple) 100%);border-radius:8px;display:grid;place-items:center;font-size:.875rem;color:#fff;font-weight:var(--fw-bold)}.nav__logo-text{display:flex;flex-direction:column;line-height:1.1}.nav__logo-text span{font-size:.7rem;font-weight:var(--fw-regular);color:#94a3b8;letter-spacing:.06em}.nav__link{font-size:.9rem;font-weight:var(--fw-medium);color:#ffffffbf;padding:6px 0;position:relative;transition:color var(--t-fast) var(--ease-out)}.nav__link:after{content:"";position:absolute;bottom:0;left:0;right:0;height:2px;background:var(--color-accent);transform:scaleX(0);transform-origin:left;transition:transform var(--t-base) var(--ease-out)}.nav__link:hover,.nav__link.is-active{color:#fff}.nav__link:hover:after,.nav__link.is-active:after{transform:scaleX(1)}.nav__actions{display:flex;align-items:center;gap:var(--sp-3)}.nav__hamburger{display:none;flex-direction:column;gap:5px;padding:8px;cursor:pointer}.nav__hamburger span{display:block;width:22px;height:2px;background:#f1f5f9;border-radius:2px;transition:all var(--t-base) var(--ease-out)}@media (max-width: 768px){.nav__menu{display:none}.nav__hamburger{display:flex}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;font-size:.9rem;font-weight:var(--fw-semibold);border-radius:var(--radius-md);transition:all var(--t-base) var(--ease-out);cursor:pointer;white-space:nowrap;border:none;text-decoration:none}.btn--primary{background:var(--color-accent);color:#fff;box-shadow:var(--shadow-accent)}.btn--primary:hover{background:var(--color-accent-hover);transform:translateY(-1px);box-shadow:0 6px 24px #2563eb59}.btn--primary:active{transform:translateY(0)}.btn--outline{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.25)}.btn--outline:hover{border-color:#fff9;background:#ffffff0f}.btn--outline-dark{background:transparent;color:var(--color-primary);border:1.5px solid var(--color-border)}.btn--outline-dark:hover{border-color:var(--color-accent);color:var(--color-accent)}.btn--sm{padding:7px 14px;font-size:var(--fs-sm)}.btn--lg{padding:14px 28px;font-size:var(--fs-body);border-radius:var(--radius-lg)}.card{background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--sp-6);transition:all var(--t-base) var(--ease-out)}.card:hover{box-shadow:var(--shadow-lg);border-color:transparent;transform:translateY(-2px)}.card--dark{background:var(--color-dark-surface);border-color:var(--color-dark-border)}.feature-card{padding:var(--sp-6);border-radius:var(--radius-lg);background:var(--color-dark-surface);border:1px solid 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var(--ease-out)}.ai-card:hover{background:#7c3aed1a;border-color:#7c3aed66;transform:translateY(-3px);box-shadow:0 12px 40px #7c3aed26}.ai-card__badge{display:inline-flex;align-items:center;gap:6px;font-size:var(--fs-xs);font-weight:var(--fw-semibold);color:var(--color-accent-purple);background:#7c3aed1f;padding:4px 10px;border-radius:var(--radius-full);margin-bottom:var(--sp-4);letter-spacing:.04em}.ai-card__title{font-size:var(--fs-h4);font-weight:var(--fw-semibold);color:#f1f5f9;margin-bottom:var(--sp-2)}.case-card{display:flex;flex-direction:column;background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden;transition:all var(--t-base) var(--ease-out)}.case-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px);border-color:transparent}.case-card__img{height:160px;background:var(--color-bg-alt);overflow:hidden;position:relative}.case-card:hover .case-card__img img{transform:scale(1.04)}.case-card__body{padding:var(--sp-5);flex:1;display:flex;flex-direction:column}.case-card__avatar{width:48px;height:48px;border-radius:50%;overflow:hidden;border:2px solid var(--color-border);margin-bottom:var(--sp-3);flex-shrink:0}.case-card__avatar img{width:100%;height:100%;object-fit:cover}.case-card__industry{font-size:var(--fs-xs);font-weight:var(--fw-semibold);color:var(--color-accent);text-transform:uppercase;letter-spacing:.08em;margin-bottom:var(--sp-2)}.case-card__title{font-size:var(--fs-body-lg);font-weight:var(--fw-semibold);color:var(--color-ink);margin-bottom:var(--sp-3);line-height:var(--lh-snug)}.case-card__stat{font-size:var(--fs-sm);color:var(--color-success);font-weight:var(--fw-semibold);margin-bottom:var(--sp-3)}.case-card__quote{font-size:var(--fs-sm);color:var(--color-muted);font-style:italic;line-height:var(--lh-loose);flex:1;border-left:2px solid var(--color-border);padding-left:var(--sp-3)}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--sp-6)}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-6)}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--sp-6)}.grid-6{display:grid;grid-template-columns:repeat(6,1fr);gap:var(--sp-4)}@media (max-width: 1024px){.grid-4{grid-template-columns:repeat(2,1fr)}.grid-6{grid-template-columns:repeat(3,1fr)}}@media (max-width: 768px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.grid-6{grid-template-columns:repeat(2,1fr)}}.cta-strip{padding:var(--sp-16) 0;text-align:center;background:linear-gradient(135deg,var(--color-primary) 0%,#1E40AF 100%);position:relative;overflow:hidden}.cta-strip:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(ellipse at 50% 0%,rgba(37,99,235,.3) 0%,transparent 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1fr;gap:var(--sp-12);margin-bottom:var(--sp-12)}.footer__brand-desc{font-size:var(--fs-sm);line-height:var(--lh-loose);margin-top:var(--sp-4);color:#64748b;max-width:260px}.footer__col-title{font-size:var(--fs-sm);font-weight:var(--fw-semibold);color:#e2e8f0;margin-bottom:var(--sp-4);text-transform:uppercase;letter-spacing:.06em}.footer__links{display:flex;flex-direction:column;gap:var(--sp-3)}.footer__link{font-size:var(--fs-sm);color:#64748b;transition:color var(--t-fast)}.footer__link:hover{color:#e2e8f0}.footer__bottom{border-top:1px solid rgba(255,255,255,.06);padding-top:var(--sp-6);display:flex;justify-content:space-between;align-items:center;font-size:var(--fs-xs);color:#475569}@media (max-width: 768px){.footer__grid{grid-template-columns:1fr 1fr;gap:var(--sp-8)}.footer__bottom{flex-direction:column;gap:var(--sp-3);text-align:center}}.nav__menu{display:flex;align-items:center;gap:var(--sp-8)}.nav__hamburger.is-active span:nth-child(1){transform:translateY(7px) rotate(45deg)}.nav__hamburger.is-active span:nth-child(2){opacity:0;transform:scaleX(0)}.nav__hamburger.is-active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}@media (max-width: 768px){@keyframes slideDown{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.nav__menu{display:none!important;visibility:hidden}.nav__menu.is-open{display:flex!important;visibility:visible!important;flex-direction:column;align-items:flex-start;gap:0;position:fixed;top:0;left:0;right:0;width:100vw;height:100vh;height:100dvh;background:#0f172afa;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);padding:calc(var(--nav-height) + var(--sp-6)) var(--gutter) var(--sp-6);overflow-y:auto;z-index:1000;isolation:isolate;animation:slideDown .25s var(--ease-out) forwards}.nav__menu.is-open .nav__link{display:block!important;visibility:visible!important;width:100%;color:#94a3b8!important;font-size:1rem;padding:var(--sp-4) 0;border-bottom:1px solid 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scale(1);opacity:1}.modal__backdrop{position:absolute;top:0;right:0;bottom:0;left:0;background:#0b2545a6;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);cursor:pointer}.modal__panel{position:relative;width:100%;max-width:480px;background:var(--color-white, #fff);border-radius:var(--radius-xl);padding:var(--sp-8) var(--sp-8) var(--sp-6);box-shadow:var(--shadow-xl);transform:translateY(20px) scale(.96);opacity:0;transition:transform var(--t-base) var(--ease-out),opacity var(--t-base) var(--ease-out);max-height:calc(100vh - 2 * var(--sp-6));overflow-y:auto}.modal__close{position:absolute;top:14px;right:14px;width:32px;height:32px;display:grid;place-items:center;background:transparent;border:none;border-radius:50%;color:#94a3b8;cursor:pointer;transition:all var(--t-fast) var(--ease-out)}.modal__close:hover{background:#f1f5f9;color:#334155}.modal__close svg{width:18px;height:18px}.modal__close i,.modal__close [class^=ri-]{font-size:18px;line-height:1}.modal__icon{width:52px;height:52px;border-radius:var(--radius-lg);background:#2563eb14;display:grid;place-items:center;margin-bottom:var(--sp-5);color:var(--color-accent)}.modal__icon svg{width:28px;height:28px}.modal__icon i{font-size:28px;line-height:1}.modal__body-text{text-align:left;font-size:var(--fs-sm);color:#475569;line-height:1.7;max-height:400px;overflow-y:auto}.modal__body-text p{margin-bottom:var(--sp-4)}.modal__body-text h4{font-size:var(--fs-sm);font-weight:var(--fw-semibold);color:var(--color-ink);margin:var(--sp-4) 0 var(--sp-2)}.modal__title{font-size:1.25rem;font-weight:var(--fw-bold);color:var(--color-ink);margin-bottom:var(--sp-2)}.modal__sub{font-size:var(--fs-sm);color:var(--color-muted);line-height:var(--lh-loose);margin-bottom:var(--sp-6)}.modal__actions{display:flex;gap:var(--sp-3);margin-top:var(--sp-6)}.modal__actions .btn{flex:1;justify-content:center}.modal__tip{margin-top:var(--sp-4);font-size:var(--fs-xs);color:#94a3b8;text-align:center;line-height:var(--lh-loose)}body.modal-open{overflow:hidden}.back-to-top{position:fixed;bottom:24px;right:24px;width:44px;height:44px;border-radius:50%;background:var(--color-accent);color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transform:translateY(10px);transition:all .3s ease;box-shadow:0 4px 12px #2563eb4d;z-index:90}.back-to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}.back-to-top:hover{background:var(--color-accent-hover, #1D4ED8);transform:translateY(-2px);box-shadow:0 6px 16px #2563eb66}.back-to-top i{font-size:20px}@media (max-width: 480px){.modal{padding:var(--sp-4)}.modal__panel{padding:var(--sp-6) var(--sp-4) var(--sp-4)}.modal__actions{flex-direction:column}}.trial-info{background:#f8fafc;border:1px solid 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