@charset "UTF-8";:root{--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-primary-active: #1e40af;--color-primary-text: #0f172a;--color-brand-accent: #2563eb;--color-accent-on-dark: #93c5fd;--color-text-muted: #64748b;--color-on-dark-muted: rgba(255, 255, 255, .78);--color-link: #2563eb;--color-page-bg: #fafafa;--color-band-muted: #f5f7fa;--color-bg: var(--color-page-bg);--color-surface: #ffffff;--color-border: #e2e8f0;--color-tint: #0f172a;--color-field: #eff6ff;--color-hover-bg: #f1f5f9;--color-border-accent: #cbd5e1;--color-cta-band: #2563eb;--color-cta-band-hover: #1d4ed8;--color-cta: #ff6a00;--color-cta-hover: #e85d00;--color-hero-from: #0b2a6f;--color-hero-to: #1d4ed8;--color-footer-bg: #18202e;--color-footer-text: #a3acb9;--topbar-height: 36px;--radius-lg: 12px;--radius-md: 8px;--radius-btn: 6px;--radius-pill: 999px;--shadow-card: 0 2px 8px rgba(15, 23, 42, .06);--shadow-elevated: 0 12px 32px rgba(37, 99, 235, .1);--font-sans: "PingFang SC", -apple-system, "Segoe UI", Roboto, "Microsoft YaHei", sans-serif;--content-width: 1320px;--header-height: 68px}*,*:before,*:after{box-sizing:border-box}html,body{margin:0;padding:0;font-family:var(--font-sans);color:var(--color-primary-text);background:var(--color-page-bg)}html{scroll-behavior:smooth}[id]{scroll-margin-top:calc(var(--header-height) + 12px)}a{color:var(--color-link)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:var(--radius-btn);font-weight:600;font-size:15px;text-decoration:none;border:1px solid transparent;cursor:pointer;transition:background .15s ease,color .15s ease,border-color .15s ease}.btn-primary{background:var(--color-primary);color:var(--color-surface)}.btn-primary:hover{background:var(--color-primary-hover)}.btn-outline{background:var(--color-surface);border-color:var(--color-primary);color:var(--color-primary)}.btn-outline:hover{background:var(--color-field)}.btn-dark{background:var(--color-tint);color:var(--color-surface)}.btn-dark:hover{background:#1e293b}.btn-sem{border-radius:var(--radius-btn);padding:14px 32px;font-size:16px;font-weight:600}.btn-sem.btn-outline{background:var(--color-surface);border-color:var(--color-primary);color:var(--color-primary)}.btn-sem.btn-outline:hover{background:var(--color-field)}.btn-pill{border-radius:var(--radius-pill);padding:14px 28px}.section-eyebrow{font-size:13px;font-weight:600;letter-spacing:.04em;color:var(--color-text-muted);margin:0}.section-title{margin:12px 0 0;font-size:clamp(1.75rem,3.4vw,2.375rem);line-height:1.25;font-weight:700;letter-spacing:-.02em}.section-lead{margin:16px 0 0;max-width:40rem;color:var(--color-text-muted);line-height:1.75}.band{width:100%;border-bottom:1px solid var(--color-border)}.band-page{background:var(--color-band-muted)}.band-white{background:var(--color-surface)}.band-inner{max-width:var(--content-width);margin:0 auto;padding:56px 16px}@media(min-width:1024px){.band-inner{padding:72px 32px}}.band-inner--center{text-align:center}.band-inner--center .section-lead{margin-left:auto;margin-right:auto}.band-inner--center .platform-grid,.band-inner--center .capability-grid,.band-inner--center .why-grid,.band-inner--center .arch-grid,.band-inner--center .compliance-grid,.band-inner--center .stat-row,.band-inner--center .coming-grid,.band-inner--center .product-line-grid,.band-inner--center .scene-grid{text-align:left}.hero-dataify{position:relative;overflow:hidden;border-bottom:1px solid var(--color-border);min-height:clamp(420px,36vw,520px);display:flex;align-items:center}.hero-bg{position:absolute;inset:0;background-color:#f4f8fc;background-image:url(/images/hero-sjsj-banner.jpg);background-size:cover;background-position:72% center;background-repeat:no-repeat}.hero-dataify:after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(105deg,rgba(255,255,255,.94) 0%,rgba(255,255,255,.88) 28%,rgba(255,255,255,.45) 48%,rgba(255,255,255,.08) 62%,transparent 78%)}@media(max-width:767px){.hero-bg{background-position:65% center}.hero-dataify:after{background:linear-gradient(180deg,#ffffffeb,#ffffffc7 45%,#ffffff59)}}.hero-inner{position:relative;z-index:1;width:100%;max-width:var(--content-width);margin:0 auto;padding:72px 16px 80px;text-align:left}@media(min-width:1024px){.hero-inner{padding:88px 32px 96px;max-width:min(var(--content-width),100%)}.hero-inner .hero-title,.hero-lead,.hero-actions{max-width:40rem}}@media(max-width:767px){.hero-inner{text-align:center}.hero-inner .hero-title,.hero-lead{margin-left:auto;margin-right:auto}.hero-actions{justify-content:center}}.hero-badge{display:inline-flex;padding:8px 16px;border-radius:var(--radius-pill);background:var(--color-field);color:var(--color-primary-text);font-size:13px;font-weight:600}.hero-inner .hero-title{margin:0;max-width:100%;padding:0;font-weight:700;line-height:1.35;color:var(--color-primary-text)}.hero-title-line{display:inline-block;white-space:nowrap;font-size:clamp(1.0625rem,.75rem + 2.4vw,2.875rem);letter-spacing:-.025em}@media(min-width:1024px){.hero-title-line{font-size:clamp(2rem,1.5rem + 1.75vw,3rem)}}.hero-title-accent{color:var(--color-primary);font-weight:800}.hero-lead{color:var(--color-text-muted);line-height:1.75;font-size:clamp(1rem,.9375rem + .45vw,1.25rem);max-width:34rem;margin:24px 0 0}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:36px;justify-content:flex-start}.hero-trust{margin:14px 0 0;font-size:13px;font-weight:500;color:var(--color-text-muted);letter-spacing:.02em}@media(max-width:767px){.hero-trust{text-align:center}}.band-inner--center .coming-grid{text-align:left}.product-line-grid{display:grid;gap:20px;margin-top:36px;text-align:left}@media(min-width:768px){.product-line-grid{grid-template-columns:repeat(3,1fr)}}.product-line-card{display:flex;flex-direction:column;padding:28px 24px;border-radius:var(--radius-md);background:var(--color-surface);border:1px solid var(--color-border);box-shadow:var(--shadow-card);min-height:240px}.product-line-card.featured{border-color:#2563eb66;background:linear-gradient(180deg,#eff6ff,#fff 55%)}.product-line-card h3{margin:0;font-size:1.25rem;font-weight:700}.product-line-card p{margin:14px 0 24px;flex:1;font-size:14px;line-height:1.65;color:var(--color-text-muted)}.product-line-card .btn{align-self:flex-start}.products-intro{padding-bottom:24px!important}.product-strip{border-top:1px solid var(--color-border);background:var(--color-surface)}.product-strip--muted{background:var(--color-band-muted)}.product-strip--dark{background:linear-gradient(135deg,#0f172a,#1e3a5f);color:#fff;border-top-color:transparent}.product-strip-inner{max-width:var(--content-width);margin:0 auto;padding:48px 16px;display:grid;gap:32px;align-items:center}@media(min-width:1024px){.product-strip-inner{grid-template-columns:1.1fr .9fr;padding:64px 32px;gap:48px}.product-strip--reverse .product-strip-inner{direction:rtl}.product-strip--reverse .product-strip-copy,.product-strip--reverse .product-strip-panel{direction:ltr}}.product-strip-eyebrow{margin:0;font-size:13px;font-weight:600;letter-spacing:.04em;color:var(--color-primary)}.product-strip--dark .product-strip-eyebrow{color:#93c5fd}.product-strip-copy h3{margin:10px 0 0;font-size:clamp(1.5rem,2.5vw,2rem);font-weight:700;line-height:1.25}.product-strip-desc{margin:14px 0 0;font-size:15px;line-height:1.7;color:var(--color-text-muted);max-width:34rem}.product-strip--dark .product-strip-desc{color:#ffffffc7}.product-strip-bullets{margin:18px 0 28px;padding:0;list-style:none;display:grid;gap:10px}.product-strip-bullets li{position:relative;padding-left:18px;font-size:14px;line-height:1.5;color:var(--color-primary-text)}.product-strip-bullets li:before{content:"";position:absolute;left:0;top:.55em;width:7px;height:7px;border-radius:50%;background:var(--color-primary)}.product-strip--dark .product-strip-bullets li{color:#ffffffeb}.product-strip--dark .product-strip-bullets li:before{background:#60a5fa}.product-strip-panel{border-radius:var(--radius-md);border:1px solid var(--color-border);background:#fff;padding:24px;box-shadow:var(--shadow-card);display:grid;gap:10px}.product-strip--dark .product-strip-panel{background:#ffffff14;border-color:#ffffff29;box-shadow:none}.product-strip-panel-title{font-size:13px;font-weight:600;color:var(--color-text-muted);margin-bottom:4px}.product-strip--dark .product-strip-panel-title{color:#ffffffa6}.product-strip-chip{padding:12px 14px;border-radius:var(--radius-btn);background:var(--color-field);font-size:14px;font-weight:500;color:var(--color-primary-text)}.product-strip--dark .product-strip-chip{background:#ffffff1a;color:#fff}.platform-pill-row{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:32px}.platform-pill{display:inline-flex;flex-direction:column;align-items:flex-start;gap:4px;min-width:7.5rem;padding:14px 16px;border-radius:var(--radius-md);border:1px solid var(--color-border);background:var(--color-surface);text-decoration:none;color:inherit;box-shadow:var(--shadow-card);transition:border-color .15s ease,box-shadow .15s ease}.platform-pill:hover{border-color:#93c5fd;box-shadow:var(--shadow-elevated)}.platform-pill.featured{border-color:#2563eb66;background:linear-gradient(180deg,#eff6ff,#fff)}.platform-pill-name{font-size:15px;font-weight:700}.platform-pill-hint{font-size:12px;color:var(--color-text-muted)}.scene-grid{display:grid;gap:16px;margin-top:32px;text-align:left}@media(min-width:768px){.scene-grid{grid-template-columns:repeat(4,1fr)}.scene-grid--large{grid-template-columns:repeat(2,1fr);gap:20px}}.scene-card{padding:22px 20px;border-radius:var(--radius-md);background:var(--color-surface);border:1px solid var(--color-border);box-shadow:var(--shadow-card)}.scene-card--large{padding:28px 24px;min-height:160px}.scene-index{display:block;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--color-primary);margin-bottom:12px}.scene-card h3{margin:0;font-size:1.05rem}.scene-card--large h3{font-size:1.25rem}.scene-card p{margin:10px 0 0;font-size:13px;line-height:1.55;color:var(--color-text-muted)}.scene-card--large p{font-size:14px;line-height:1.65}.band-trust-strip .band-inner{padding-top:40px;padding-bottom:40px}.section-more{margin:28px 0 0;font-size:15px;font-weight:600}.section-more a{text-decoration:none}.section-more a:hover{text-decoration:underline}.band-preview .section-title{text-align:left}.code-preview-light{background:var(--color-surface);color:var(--color-primary-text);border:1px solid var(--color-border);box-shadow:var(--shadow-elevated);margin-top:24px}.code-preview-light .code-preview-head{border-bottom:1px solid var(--color-border);color:var(--color-text-muted)}.code-preview-light .code-preview-tabs span{background:var(--color-hover-bg);color:var(--color-text-muted)}.code-preview-light .code-preview-tabs span.active{background:var(--color-field);color:var(--color-primary);font-weight:600}.code-preview-light pre{background:#f8fafc;color:#334155}.stat-row{display:grid;gap:16px}@media(min-width:768px){.stat-row{grid-template-columns:repeat(3,1fr)}}.stat-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:24px;box-shadow:var(--shadow-card)}@media(min-width:768px){.band-page .stat-row .stat-card{background:var(--color-surface)}}.stat-card strong{display:block;font-size:1.125rem}.stat-card p{margin:8px 0 0;font-size:14px;color:var(--color-text-muted);line-height:1.55}.platform-grid{display:grid;gap:12px;grid-template-columns:repeat(2,1fr);margin-top:32px}@media(min-width:640px){.platform-grid{grid-template-columns:repeat(4,1fr)}}.platform-grid-matrix{grid-template-columns:repeat(2,1fr)}@media(min-width:768px){.platform-grid-matrix{grid-template-columns:repeat(4,1fr)}}.product-card{display:block;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:24px 20px;text-decoration:none;color:inherit;transition:box-shadow .15s ease,border-color .15s ease}.product-card:hover{border-color:#93c5fd;box-shadow:var(--shadow-elevated)}.product-card.featured{border-color:#2563eb59;background:linear-gradient(180deg,#eff6ff,#fff)}.product-icon{width:40px;height:40px;border-radius:var(--radius-btn);background:var(--color-field);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;color:var(--color-primary)}.product-card h3{margin:16px 0 8px;font-size:1.05rem}.product-card p{margin:0;font-size:13px;line-height:1.5;color:var(--color-text-muted)}.capability-grid{display:grid;gap:16px;margin-top:32px}@media(min-width:640px){.capability-grid{grid-template-columns:repeat(2,1fr)}}@media(min-width:1024px){.capability-grid{grid-template-columns:repeat(3,1fr)}}.capability-card{padding:22px;border-radius:var(--radius-md);background:var(--color-surface);border:1px solid var(--color-border);box-shadow:var(--shadow-card)}.capability-method{font-size:11px;font-weight:700;letter-spacing:.08em;color:var(--color-primary)}.capability-card h3{margin:10px 0 8px;font-size:1rem;line-height:1.4}.capability-card code{font-size:11px;color:var(--color-text-muted);word-break:break-all}.compliance-grid{display:grid;gap:16px;margin-top:32px}@media(min-width:768px){.compliance-grid{grid-template-columns:repeat(3,1fr)}}.compliance-card{padding:24px;border-radius:var(--radius-md);background:var(--color-surface);border:1px solid var(--color-border);box-shadow:var(--shadow-card);text-align:left}.compliance-card h3{margin:0 0 10px;font-size:1.05rem}.compliance-card p{margin:0;font-size:13px;line-height:1.6;color:var(--color-text-muted)}.dual-steps{display:grid;gap:32px;margin-top:28px;text-align:left}@media(min-width:768px){.dual-steps{grid-template-columns:1fr 1fr;gap:40px}}.dual-steps-title{margin:0 0 16px;font-size:1.125rem}.how-steps-compact{margin-top:0}.how-steps-compact .how-step{padding:16px}.how-step h4{margin:10px 0 6px;font-size:1rem}.band-cta{background:transparent;border-bottom:none}.code-preview{border-radius:var(--radius-lg);overflow:hidden}.code-preview-head{display:flex;justify-content:space-between;align-items:center;padding:14px 18px;font-size:13px}.code-preview-tabs{display:flex;gap:8px}.code-preview-tabs span{padding:4px 10px;border-radius:8px;font-size:12px}.code-preview pre{margin:0;padding:18px;font-size:12px;line-height:1.55;overflow-x:auto;font-family:ui-monospace,Cascadia Code,Consolas,monospace}.why-grid{display:grid;gap:16px;margin-top:32px}@media(min-width:768px){.why-grid{grid-template-columns:repeat(4,1fr)}}.why-card{padding:20px;border-radius:var(--radius-md);background:var(--color-surface);border:1px solid var(--color-border);box-shadow:var(--shadow-card);text-align:left}.why-card h3{margin:0;font-size:1rem}.why-card p{margin:10px 0 0;font-size:13px;line-height:1.55;color:var(--color-text-muted)}.api-sample-list{display:grid;gap:10px;margin-top:28px}.api-sample{display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center;padding:14px 16px;border-radius:12px;background:var(--color-surface);border:1px solid var(--color-border);font-size:13px}.api-sample .method{font-weight:700;color:var(--color-primary);font-size:11px;letter-spacing:.06em}.api-sample code{font-family:ui-monospace,Consolas,monospace;font-size:12px;word-break:break-all}.api-sample .note{color:var(--color-text-muted);white-space:nowrap}@media(max-width:640px){.api-sample{grid-template-columns:1fr}.api-sample .note{white-space:normal}}.arch-grid{display:grid;gap:16px;margin-top:32px}@media(min-width:768px){.arch-grid{grid-template-columns:repeat(3,1fr)}}.arch-card{text-align:center;padding:28px 20px;border-radius:var(--radius-md);background:var(--color-surface);border:1px solid var(--color-border);box-shadow:var(--shadow-card)}.arch-num{width:40px;height:40px;margin:0 auto;border-radius:50%;background:var(--color-primary);color:var(--color-surface);display:flex;align-items:center;justify-content:center;font-weight:700}.arch-card h3{margin:16px 0 8px;font-size:1.05rem}.arch-card p{margin:0;font-size:13px;color:var(--color-text-muted);line-height:1.55}.how-steps{display:grid;gap:20px;margin-top:32px}@media(min-width:768px){.how-steps{grid-template-columns:repeat(3,1fr)}}.how-step{padding:20px;border-radius:14px;background:var(--color-surface);border:1px solid var(--color-border)}.how-num{font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--color-brand-accent)}.how-step h3{margin:12px 0 8px;font-size:1.05rem}.how-step p{margin:0;font-size:13px;color:var(--color-text-muted);line-height:1.55}.use-grid{display:grid;gap:12px;margin-top:28px}@media(min-width:768px){.use-grid{grid-template-columns:repeat(4,1fr)}}.use-card{padding:18px;border-radius:12px;background:var(--color-field);border:1px solid transparent}.use-card h3{margin:0;font-size:15px}.use-card p{margin:8px 0 0;font-size:12px;color:var(--color-text-muted);line-height:1.5}.delivery-grid{display:grid;gap:40px;align-items:center}@media(min-width:1024px){.delivery-grid{grid-template-columns:1fr 1fr}}.channel-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.channel-pill{padding:8px 14px;border-radius:var(--radius-pill);background:var(--color-surface);border:1px solid var(--color-border);font-size:13px;font-weight:500}.push-mock{background:var(--color-tint);color:var(--color-surface);border-radius:var(--radius-lg);padding:20px;min-height:220px}.push-msg{background:#ffffff14;border-radius:12px;padding:14px;margin-bottom:10px;font-size:13px}.push-msg strong{display:block;margin-bottom:4px}.enterprise-band{text-align:center;max-width:36rem;margin:0 auto}.enterprise-band .btn{margin-top:24px}.band-compliance .compliance-grid{text-align:left}.bottom-cta{text-align:center;padding:56px 16px;background:var(--color-cta-band);border-bottom:none;color:#fff}.bottom-cta h2{margin:0;font-size:clamp(1.375rem,2.5vw,1.75rem);color:#fff;font-weight:700}.bottom-cta p{margin:12px 0 28px;color:#ffffffe0}.bottom-cta .btn-sem-invert{background:#fff;color:var(--color-primary);border-color:#fff}.bottom-cta .btn-sem-invert:hover{background:#eff6ff;color:var(--color-primary-hover)}.btn-sem-invert{background:#fff;color:var(--color-primary);border-color:#fff}.btn-sem-invert:hover{background:#eff6ff;color:var(--color-primary-hover)}.contact-grid{display:grid;gap:32px}@media(min-width:768px){.contact-grid{grid-template-columns:1fr 1.1fr;align-items:start}}.contact-form{display:grid;gap:14px;padding:24px;border-radius:16px;background:var(--color-surface);border:1px solid var(--color-border)}.contact-form label{display:grid;gap:6px;font-size:13px;font-weight:600}.contact-form input,.contact-form select,.contact-form textarea{padding:10px 12px;border-radius:10px;border:1px solid var(--color-border);font:inherit;background:var(--color-page-bg)}.contact-form textarea{min-height:96px;resize:vertical}.form-msg{font-size:14px;margin:0}.form-msg.ok{color:var(--color-primary)}.form-msg.err{color:#c0392b}.coming-grid{display:grid;gap:12px;margin-top:24px}@media(min-width:640px){.coming-grid{grid-template-columns:repeat(2,1fr)}}.coming-card{padding:20px;border-radius:var(--radius-md);border:1px dashed var(--color-border-accent);background:var(--color-surface);text-align:left}.xm-wrap{max-width:var(--content-width);margin:0 auto;padding:0 16px}@media(min-width:1024px){.xm-wrap{padding:0 32px}}.xm-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:9px 20px;border-radius:4px;font-size:14px;font-weight:600;line-height:1.2;text-decoration:none;border:1px solid transparent;cursor:pointer;white-space:nowrap;transition:background .15s ease,color .15s ease,border-color .15s 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