.saiwei-page {--blue-950:#0B0D10;--blue-900:#0D0D0D;--blue-850:#0D0D0D;--blue-800:#272727;--blue-700:#C7FF2E;--blue-600:#D7FF66;--blue-300:#C7FF2E;--blue-100:#F2FFDE; --cream:#FFFFFF;--cream-2:#F4F6F8;--cream-3:#E5E7EB; --silver-50:#FFFFFF;--silver-100:#F4F6F8;--silver-200:#E5E7EB;--silver-300:#DBDBDB;--silver-400:#9F9F9F;--silver-500:#505050;--silver-600:#555555;--silver-700:#424242; --ink:#0D0D0D;--muted:#505050;--line:rgba(17,24,39,.10);--line-soft:rgba(17,24,39,.065); --shadow:0 24px 70px rgba(17,24,39,.08);--shadow-sm:0 12px 34px rgba(17,24,39,.055); --content:min(calc(100% - 36px),1350px); width:100%;overflow:hidden;background:var(--cream);color:var(--ink); font-family:"Outfit",Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;line-height:1.62;-webkit-font-smoothing:antialiased}

.saiwei-page button {font:inherit}

.saiwei-page img {display:block;max-width:100%}

.saiwei-page .kicker::before {content:"";width:30px;height:2px;border-radius:999px;background:#C7FF2E}

.saiwei-page .display {margin:0;font-size:clamp(2.4rem,6.6vw,5rem);line-height:.9;letter-spacing:-.063em;font-weight:950}

.saiwei-page .section-title {margin:0;font-size:clamp(2.15rem,4vw,3.3rem);line-height:.96;letter-spacing:-.048em;font-weight:930}

.saiwei-page .btn {min-height:50px;display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:13px 21px;border:1px solid transparent;border-radius:999px;font-size:.76rem;font-weight:900;letter-spacing:.085em;text-transform:uppercase;transition:.2s ease;cursor:pointer}

.saiwei-page .btn-outline {border-color:var(--silver-300);background:rgba(255,255,255,.42);color:var(--blue-900)}

.saiwei-page .btn-cream {background:var(--cream);color:var(--blue-900);border-color:rgba(255,255,255,.36)}

.saiwei-page .text-link {display:inline-flex;align-items:center;gap:8px;margin-top:16px;color:#2563EB;font-size:.75rem;font-weight:900;letter-spacing:.035em;text-transform:uppercase}

.saiwei-page .text-link::after {content:"→"}

.saiwei-page .header-inner {width:var(--content);min-height:76px;margin:auto;display:grid;grid-template-columns:auto 1fr auto;gap:24px;align-items:center}

.saiwei-page .brand {display:flex;align-items:center;gap:11px;color:var(--blue-900);font-size:.94rem;font-weight:950;letter-spacing:.07em;text-transform:uppercase}

.saiwei-page .brand-mark {width:34px;height:34px;display:grid;place-items:center;border-radius:12px;background:var(--blue-700);color:#0B0D10}

.saiwei-page .desktop-nav {display:flex;justify-content:center;gap:22px}

.saiwei-page .desktop-nav a {font-size:.79rem;font-weight:760;color:#424242}

.saiwei-page .menu-btn {display:none;width:46px;height:46px;border:1px solid var(--silver-300);border-radius:14px;background:var(--cream);color:var(--blue-900);cursor:pointer}

.saiwei-page .mobile-menu {position:absolute;top:76px;left:18px;right:18px;padding:10px;border:1px solid var(--silver-300);border-radius:18px;background:var(--cream);box-shadow:var(--shadow);overflow:hidden}

.saiwei-page .breadcrumb {width:var(--content);margin:auto;min-height:48px;display:flex;align-items:center;gap:9px;font-size:.72rem;color:var(--muted)}

.saiwei-page .breadcrumb a:hover {color:#2563EB}

.saiwei-page .hero {padding:50px 0 78px;background:radial-gradient(circle at 83% 10%,rgba(199,255,46,.1360),transparent 28%),linear-gradient(180deg,var(--cream),var(--cream-2))}

.saiwei-page .hero-grid {width:var(--content);margin:auto;display:grid;grid-template-columns:minmax(0,1.04fr) minmax(430px,.96fr);gap:48px;align-items:center}

.saiwei-page .hero-copy {padding:50px 0}

.saiwei-page .hero h1 {color:var(--blue-950)}

.saiwei-page .hero-lead {max-width:780px;margin:28px 0 0;color:#555555;font-size:clamp(1.05rem,1.5vw,1.23rem);line-height:1.7}

.saiwei-page .hero-actions {display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}

.saiwei-page .entity-board {padding:28px;border:1px solid var(--line);border-radius:32px;background:linear-gradient(145deg,#fff,var(--silver-100));box-shadow:var(--shadow)}

.saiwei-page .entity-head {display:flex;justify-content:space-between;gap:16px;align-items:center;padding-bottom:20px;border-bottom:1px solid var(--line)}

.saiwei-page .entity-head strong {font-size:.76rem;letter-spacing:.11em;text-transform:uppercase;color:var(--blue-900)}

.saiwei-page .entity-pill {padding:8px 11px;border-radius:999px;background:var(--blue-100);color:#0B0D10;font-size:.62rem;font-weight:900;letter-spacing:.08em;text-transform:uppercase}

.saiwei-page .entity-list {display:grid;gap:12px;margin-top:22px}

.saiwei-page .entity-line {display:grid;grid-template-columns:105px 1fr;gap:16px;padding:15px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.74)}

.saiwei-page .entity-line span {color:var(--silver-600);font-size:.66rem;font-weight:900;letter-spacing:.07em;text-transform:uppercase}

.saiwei-page .entity-line strong {color:var(--blue-950);font-size:.83rem}

.saiwei-page .entity-line strong a {color:inherit;border-bottom:1px solid rgba(11,13,16,.28);transition:.2s ease}

.saiwei-page .entity-line strong a:hover {color:inherit;border-bottom-color:var(--blue-950)}

.saiwei-page .entity-note {margin-top:18px;padding:16px 17px;border-radius:18px;background:var(--blue-900);color:rgba(255,255,255,.82);font-size:.81rem}

.saiwei-page .entity-note b {color:var(--blue-300)}

.saiwei-page .quick {padding:82px 0;background:var(--cream)}

.saiwei-page .quick-card {padding:30px 34px;border:1px solid var(--line);border-radius:28px;background:#fff;box-shadow:var(--shadow-sm);display:grid;grid-template-columns:220px 1fr;gap:28px}

.saiwei-page .quick-card p {margin:0;color:#555555;font-size:1.04rem;line-height:1.72}

.saiwei-page .make {padding:98px 0;background:var(--cream-2)}

.saiwei-page .make-grid {display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:32px}

.saiwei-page .make-card {padding:30px;border:1px solid var(--line);border-radius:28px;background:#fff;box-shadow:var(--shadow-sm)}

.saiwei-page .make-card.carbon {background:linear-gradient(145deg,#fff,var(--blue-100))}

.saiwei-page .make-card.plastic {background:linear-gradient(145deg,#fff,var(--silver-100))}

.saiwei-page .make-card span {font-size:.63rem;font-weight:900;letter-spacing:.09em;text-transform:uppercase;color:var(--silver-600)}

.saiwei-page .make-card h3 {margin:13px 0 0;color:var(--blue-950);font-size:1.6rem}

.saiwei-page .make-card p {margin:13px 0 0;color:var(--muted);font-size:.88rem}

.saiwei-page .capabilities {display:flex;flex-wrap:wrap;gap:9px;margin-top:24px}

.saiwei-page .capabilities span {padding:8px 11px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#636363;font-size:.69rem;font-weight:800}

.saiwei-page .custom {padding:98px 0;background:var(--cream)}

.saiwei-page .custom-layout {display:grid;grid-template-columns:.82fr 1.18fr;gap:44px;align-items:start}

.saiwei-page .custom-panel {padding:30px;border:1px solid var(--line);border-radius:30px;background:#fff;box-shadow:var(--shadow-sm)}

.saiwei-page .custom-panel h3 {margin:0;color:var(--blue-950);font-size:1.45rem}

.saiwei-page .custom-steps {display:grid;gap:10px;margin-top:20px}

.saiwei-page .custom-step {display:grid;grid-template-columns:38px 1fr;gap:13px;align-items:start;padding:13px 0;border-bottom:1px solid var(--line-soft)}

.saiwei-page .custom-step:last-child {border-bottom:0}

.saiwei-page .custom-step span {display:grid;place-items:center;width:32px;height:32px;border-radius:10px;background:var(--blue-100);color:#0B0D10;font-size:.64rem;font-weight:950}

.saiwei-page .custom-step strong {display:block;color:var(--blue-950);font-size:.84rem}

.saiwei-page .custom-step p {margin:4px 0 0;color:var(--muted);font-size:.85rem}

.saiwei-page .materials {padding:98px 0;background:var(--silver-50)}

.saiwei-page .material-grid {display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:30px}

.saiwei-page .material-card {padding:24px;border:1px solid var(--line);border-radius:24px;background:#fff;box-shadow:var(--shadow-sm)}

.saiwei-page .material-card h3 {margin:0;color:var(--blue-950);font-size:1.14rem}

.saiwei-page .material-card p {margin:10px 0 0;color:var(--muted);font-size:.89rem}

.saiwei-page .workflow {padding:98px 0;background:var(--cream)}

.saiwei-page .workflow-grid {display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:32px}

.saiwei-page .workflow-step {padding:22px;border:1px solid var(--line);border-radius:22px;background:#fff;box-shadow:var(--shadow-sm)}

.saiwei-page .workflow-step span {display:grid;place-items:center;width:34px;height:34px;border-radius:11px;background:var(--blue-100);color:#0B0D10;font-size:.66rem;font-weight:950}

.saiwei-page .workflow-step h3 {margin:24px 0 0;color:var(--blue-950);font-size:.98rem}

.saiwei-page .workflow-step p {margin:8px 0 0;color:var(--muted);font-size:.85rem}

.saiwei-page .timing-note {margin-top:22px;padding:18px;border-radius:18px;background:var(--cream-2);border:1px solid var(--line);color:#555555;font-size:.86rem}

.saiwei-page .timing-note strong {color:var(--blue-900)}

.saiwei-page .testing {padding:100px 0;background:var(--blue-900);color:#fff}

.saiwei-page .testing-grid {display:grid;grid-template-columns:.8fr 1.2fr;gap:48px;align-items:start}

.saiwei-page .testing .kicker {color:var(--blue-300)}

.saiwei-page .testing .section-copy {color:rgba(255,255,255,.72)}

.saiwei-page .testing-card {padding:30px;border-radius:30px;background:var(--cream);color:var(--ink);box-shadow:var(--shadow)}

.saiwei-page .testing-card h3 {margin:0;color:var(--blue-950);font-size:1.45rem}

.saiwei-page .testing-list {display:flex;flex-wrap:wrap;gap:9px;margin-top:18px}

.saiwei-page .testing-list span {padding:8px 11px;border-radius:999px;background:var(--blue-100);color:#0B0D10;font-size:.69rem;font-weight:850}

.saiwei-page .testing-state {margin-top:18px;padding:17px;border-radius:17px;background:var(--cream-2);color:#555555;font-size:.85rem}

.saiwei-page .testing-state strong {color:var(--blue-900)}

.saiwei-page .evidence {padding:98px 0;background:var(--cream-2)}

.saiwei-page .evidence-grid {display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-top:30px}

.saiwei-page .evidence-card {padding:22px;border:1px solid var(--line);border-radius:22px;background:#fff;box-shadow:var(--shadow-sm)}

.saiwei-page .evidence-card span {display:grid;place-items:center;width:32px;height:32px;border-radius:10px;background:var(--blue-100);color:#0B0D10;font-size:.63rem;font-weight:950}

.saiwei-page .evidence-card h3 {margin:22px 0 0;color:var(--blue-950);font-size:.94rem}

.saiwei-page .evidence-card p {margin:7px 0 0;color:var(--muted);font-size:.82rem}

.saiwei-page .evidence-boundary {margin-top:22px;padding:20px;border-radius:20px;background:#fff;border:1px solid var(--line);color:#555555;font-size:.88rem}

.saiwei-page .business {padding:98px 0;background:var(--cream)}

.saiwei-page .business-layout {display:grid;grid-template-columns:.76fr 1.24fr;gap:50px;align-items:start}

.saiwei-page .business-copy {position:sticky;top:24px}

.saiwei-page .facts-card {border:1px solid var(--line);border-radius:30px;background:#fff;box-shadow:var(--shadow-sm);overflow:hidden}

.saiwei-page .fact-row {display:grid;grid-template-columns:1fr 1.2fr;gap:20px;padding:18px 24px;border-bottom:1px solid var(--line-soft);font-size:.82rem}

.saiwei-page .fact-row:last-child {border-bottom:0}

.saiwei-page .fact-row span {color:var(--silver-600)}

.saiwei-page .fact-row strong {color:var(--blue-950)}

.saiwei-page .business-note {padding:20px 24px;background:var(--cream-2);border-top:1px solid var(--line);color:#555555;font-size:.85rem}

.saiwei-page .markets {padding:98px 0;background:var(--silver-100)}

.saiwei-page .market-grid {display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:30px}

.saiwei-page .market-card {padding:26px;border:1px solid var(--line);border-radius:24px;background:#fff;box-shadow:var(--shadow-sm)}

.saiwei-page .market-card span {font-size:.62rem;font-weight:900;letter-spacing:.09em;text-transform:uppercase;color:var(--silver-600)}

.saiwei-page .market-card h3 {margin:11px 0 0;color:var(--blue-950);font-size:1.25rem}

.saiwei-page .market-card p {margin:9px 0 0;color:var(--muted);font-size:.85rem}

.saiwei-page .principles {padding:98px 0;background:var(--cream)}

.saiwei-page .principle-grid {display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:30px}

.saiwei-page .principle {padding:24px;border:1px solid var(--line);border-radius:24px;background:#fff;box-shadow:var(--shadow-sm)}

.saiwei-page .principle span {display:grid;place-items:center;width:34px;height:34px;border-radius:11px;background:var(--blue-100);color:#0B0D10;font-size:.64rem;font-weight:950}

.saiwei-page .principle h3 {margin:24px 0 0;color:var(--blue-950);font-size:1rem}

.saiwei-page .principle p {margin:8px 0 0;color:var(--muted);font-size:.85rem}

.saiwei-page .faq {padding:98px 0;background:var(--cream-2)}

.saiwei-page .faq-side {position:sticky;top:24px}

.saiwei-page .faq-list {display:grid;gap:12px}

.saiwei-page details {border:1px solid var(--line);border-radius:20px;background:#fff;box-shadow:0 8px 25px rgba(17,24,39,.04);overflow:hidden}

.saiwei-page summary {position:relative;list-style:none;cursor:pointer;padding:20px 54px 20px 20px;color:var(--blue-950);font-weight:850}

.saiwei-page summary::-webkit-details-marker {display:none}

.saiwei-page summary::after {content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);width:26px;height:26px;display:grid;place-items:center;border-radius:50%;background:var(--silver-100);color:#0B0D10;font-size:1.1rem}

.saiwei-page details[open] summary::after {content:"–"}

.saiwei-page .faq-answer {padding:0 20px 20px;color:#636363;font-size:.9rem}

.saiwei-page .contact {padding:38px 0 90px;background:var(--cream)}

.saiwei-page .contact-panel {position:relative;padding:54px;border-radius:32px;background:linear-gradient(140deg,#0B0D10,#272727);color:#fff;overflow:hidden;box-shadow:var(--shadow)}

.saiwei-page .contact-panel::before {content:"";position:absolute;width:380px;height:380px;border-radius:50%;right:-125px;top:-165px;background:rgba(255,255,255,.07)}

.saiwei-page .contact-inner {position:relative;z-index:1;display:grid;grid-template-columns:1fr auto;gap:36px;align-items:end}

.saiwei-page .contact h2 {margin:0;max-width:760px;font-size:clamp(2.4rem,4.5vw,3.3rem);line-height:.96;letter-spacing:-.05em}

.saiwei-page .contact p {margin:18px 0 0;max-width:760px;color:rgba(255,255,255,.72)}

.saiwei-page .contact-actions {display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end}

.saiwei-page .page-note {padding:24px 0 54px;background:var(--cream);color:var(--muted);font-size:.75rem}

.saiwei-page .page-note-inner {width:var(--content);margin:auto;padding-top:20px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}

.saiwei-page .page-note strong {color:var(--blue-900)}

@media (max-width:1100px) { .saiwei-page .desktop-nav {display:none} }

@media (max-width:1100px) { .saiwei-page .menu-btn {display:grid;place-items:center} }

@media (max-width:1100px) { .saiwei-page .hero-grid,.saiwei-page .custom-layout,.saiwei-page .testing-grid,.saiwei-page .business-layout,.saiwei-page .faq-layout {grid-template-columns:1fr} }

@media (max-width:1100px) { .saiwei-page .business-copy,.saiwei-page .faq-side {position:static} }

@media (max-width:1100px) { .saiwei-page .workflow-grid,.saiwei-page .principle-grid {grid-template-columns:repeat(2,1fr)} }

@media (max-width:1100px) { .saiwei-page .evidence-grid {grid-template-columns:repeat(3,1fr)} }

@media (max-width:1100px) { .saiwei-page .contact-inner {grid-template-columns:1fr} }

@media (max-width:1100px) { .saiwei-page .contact-actions {justify-content:flex-start} }

@media (max-width:780px) { .saiwei-page {--content:min(calc(100% - 26px),1350px)} }

@media (max-width:780px) { .saiwei-page .header-inner {min-height:68px} }

@media (max-width:780px) { .saiwei-page .mobile-menu {top:68px} }

@media (max-width:780px) { .saiwei-page .hero {padding:26px 0 58px} }

@media (max-width:780px) { .saiwei-page .hero-copy {padding:36px 0 8px} }

@media (max-width:780px) { .saiwei-page .display {font-size:clamp(2.4rem,12vw,5rem)} }

@media (max-width:780px) { .saiwei-page .quick-card,.saiwei-page .make-grid,.saiwei-page .material-grid,.saiwei-page .market-grid,.saiwei-page .workflow-grid,.saiwei-page .principle-grid,.saiwei-page .evidence-grid {grid-template-columns:1fr} }

@media (max-width:780px) { .saiwei-page .quick-card {padding:25px} }

@media (max-width:780px) { .saiwei-page .contact-panel {padding:34px 24px} }

@media (max-width:520px) { .saiwei-page .hero-actions,.saiwei-page .contact-actions {display:grid} }

@media (max-width:520px) { .saiwei-page .btn {width:100%} }

@media (max-width:520px) { .saiwei-page .entity-line,.saiwei-page .fact-row {grid-template-columns:1fr} }

@media (prefers-reduced-motion:reduce) { .saiwei-page * {scroll-behavior:auto!important;transition:none!important} }

.saiwei-page section {padding:75px 0!important}

@media (max-width:780px) { .saiwei-page section {padding:55px 0!important} }