:root{--ink:#17201c;--ink-2:#45524c;--muted:#66736d;--bg:#faf8f3;--paper:#ffffff;--tint:#eef5f0;--line:#e2e6df;--jade-900:#0b3328;--jade-800:#0f3d33;--jade-700:#145a45;--jade-600:#1d7a57;--jade-400:#4fae86;--jade-100:#dcefe4;--gold:#b8924a;--radius:14px;--shadow:0 1px 2px rgba(11,51,40,0.06),0 8px 24px rgba(11,51,40,0.06);--serif:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,"Songti SC","Noto Serif CJK SC","Source Han Serif",serif;--sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue","PingFang SC","Hiragino Sans","Noto Sans CJK SC","Noto Sans Thai","Apple SD Gothic Neo","Malgun 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22px;border-radius:999px;font-weight:600;font-size:1rem;border:1px solid transparent;cursor:pointer;transition:background .15s,border-color .15s,transform .15s;font-family:inherit}.btn:hover{text-decoration:none;transform:translateY(-1px)}.btn-primary{background:var(--jade-800);color:#fff}.btn-primary:hover{background:var(--jade-700)}.btn-primary:disabled{opacity:.6;cursor:default;transform:none}.btn-ghost{background:transparent;color:var(--jade-800);border-color:#b9cfc4}.btn-ghost:hover{border-color:var(--jade-700)}.btn-sm{min-height:38px;padding:0 16px;font-size:.9rem}.site-header{position:-webkit-sticky;position:sticky;top:0;z-index:20;background:rgba(250,248,243,.92);-webkit-backdrop-filter:saturate(1.4) blur(10px);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}.header-inner{display:flex;align-items:center;gap:16px;height:64px}.brand{display:inline-flex;align-items:center;gap:10px;color:var(--jade-900);font-weight:700}.brand:hover{text-decoration:none}.brand-name{font-family:var(--serif);font-size:1.2rem;letter-spacing:.01em;display:inline-flex;align-items:baseline;gap:8px}.brand-zh{font-size:.95rem;color:var(--gold);font-weight:600}.main-nav{display:none;gap:26px;margin-left:28px}.main-nav a{color:var(--ink-2);font-weight:500;font-size:.95rem}.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}.header-actions .btn{display:none}.lang{position:relative}.lang summary{list-style:none;display:inline-flex;align-items:center;gap:6px;min-height:38px;padding:0 12px;border:1px solid var(--line);border-radius:999px;cursor:pointer;font-size:.9rem;color:var(--ink-2);background:var(--paper)}.lang summary::-webkit-details-marker{display:none}.lang ul{position:absolute;right:0;top:calc(100% + 8px);margin:0;padding:6px;list-style:none;background:var(--paper);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);min-width:190px;z-index:30}.lang li a{display:block;padding:9px 12px;border-radius:8px;color:var(--ink);font-size:.95rem}.lang li a:hover{background:var(--tint);text-decoration:none}.lang li a[aria-current=true]{color:var(--jade-700);font-weight:600}.hero{position:relative;overflow:hidden;padding:36px 0 48px;background:radial-gradient(900px 480px at 85% 10%,#e3f1e9 0,rgba(227,241,233,0) 60%),radial-gradient(600px 400px at 0 100%,#f3ecdf 0,rgba(243,236,223,0) 60%)}.hero-grid{display:grid;grid-gap:20px;gap:20px;align-items:center}.hero-visual{order:-1;max-width:190px;margin:0 auto}.hero-art{display:block;width:100%;height:auto}.eyebrow{display:inline-block;font-size:.8rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--jade-700);background:var(--jade-100);padding:6px 12px;border-radius:999px;margin-bottom:18px}.lead{font-size:1.08rem;max-width:60ch}.lead,.lead-sm{color:var(--ink-2)}.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 14px}.cta-row .btn{flex:1 1 200px}.note{font-size:.9rem;color:var(--muted)}.trust{background:var(--jade-800);color:#e7f2ec;padding:40px 0}.trust-grid{display:grid;grid-gap:26px;gap:26px}.trust-item h3{color:#fff;font-family:var(--sans);font-size:1.02rem;margin:10px 0 6px}.trust-item p{margin:0;color:#bcd6c9;font-size:.95rem}.trust-icon{display:inline-flex;width:46px;height:46px;border-radius:12px;align-items:center;justify-content:center;background:rgba(255,255,255,.08);color:#9fe0c0;border:1px solid rgba(255,255,255,.12)}.section{padding:56px 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.step-num{background:var(--jade-800);color:#fff}.cats{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,1fr);grid-gap:12px;gap:12px}.cat{aspect-ratio:1/1;border-radius:var(--radius);overflow:hidden;display:flex;align-items:flex-end;padding:16px;color:#fff;font-weight:600;font-family:var(--serif);font-size:1.1rem;box-shadow:var(--shadow)}.cat,.cat span{position:relative}.cat span{z-index:1;text-shadow:0 1px 8px rgba(0,0,0,.25)}.cat:before{inset:0}.cat:after,.cat:before{content:"";position:absolute}.cat:after{border-radius:50%}.cat-1:before{background:linear-gradient(145deg,#5fbf95,#145a45)}.cat-1:after{width:70%;aspect-ratio:1;top:10%;right:-10%;border:14px solid rgba(255,255,255,.28)}.cat-2:before{background:linear-gradient(145deg,#9fcfb6,#2d6e58)}.cat-2:after{width:34%;aspect-ratio:3/4;top:16%;right:16%;border-radius:45% 45% 40% 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h3{display:inline;font-family:var(--sans);font-size:1.02rem;color:var(--ink);font-weight:600}.faq details p{color:var(--ink-2);margin:0 0 14px}.join{background:linear-gradient(180deg,var(--bg),var(--jade-100))}.waitlist{margin-top:22px;text-align:left}.role-group{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-bottom:14px}.role{display:inline-flex}.role input{position:absolute;opacity:0;pointer-events:none}.role span{padding:8px 14px;border-radius:999px;border:1px solid #b9cfc4;background:var(--paper);cursor:pointer;font-size:.9rem;color:var(--ink-2)}.role input:checked+span{background:var(--jade-800);border-color:var(--jade-800);color:#fff}.role input:focus-visible+span{outline:2px solid var(--jade-400);outline-offset:2px}.field-row{display:flex;flex-direction:column;gap:10px}.field-row input[type=email]{min-height:50px;padding:0 18px;border-radius:999px;border:1px solid #b9cfc4;font-size:1rem;background:var(--paper);font-family:inherit}.field-row input[type=email]:focus{outline:2px solid var(--jade-400);border-color:transparent}.hp{position:absolute;left:-9999px;width:1px;height:1px}.form-ok{font-weight:600;color:var(--jade-700);background:var(--paper);padding:16px;border-radius:12px}.form-err{color:#a63d2a;margin-top:10px;text-align:center}.article h1{font-size:clamp(1.8rem,4.4vw,2.6rem)}.crumbs{margin-bottom:14px}.crumbs,.crumbs a{color:var(--muted)}.tldr{background:var(--paper);border-left:4px solid var(--jade-600);border-radius:0 12px 12px 0;padding:16px 18px;font-size:1.05rem;color:var(--ink);box-shadow:var(--shadow);margin:20px 0 28px}.prose h2{margin-top:1.8em;font-size:clamp(1.3rem,3vw,1.65rem)}.prose h3{margin-top:1.4em}.prose ol,.prose ul{padding-left:1.3em}.prose li{margin-bottom:.4em}.prose table{width:100%;border-collapse:collapse;margin:1.2em 0 1.6em;font-size:.93rem;display:block;overflow-x:auto}.prose td,.prose th{text-align:left;padding:10px 12px;border-bottom:1px solid 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(min-width:640px){.hero-visual{max-width:320px}.trust-grid{grid-template-columns:repeat(2,1fr)}.field-row{flex-direction:row}.field-row input[type=email]{flex:1 1}.cards{grid-template-columns:repeat(2,1fr)}.cta-row .btn{flex:0 0 auto}}@media (min-width:960px){.main-nav{display:flex}.header-actions .btn{display:inline-flex}.header-inner{height:72px}.hero{padding:72px 0 88px}.hero-grid{grid-template-columns:1.15fr .85fr;gap:48px}.hero-visual{order:0;max-width:440px}.trust-grid{grid-template-columns:repeat(4,1fr)}.section{padding:88px 0}.steps{grid-template-columns:repeat(5,1fr)}.step{padding:64px 18px 20px}.step-num{top:18px;left:18px}.cats{grid-template-columns:repeat(4,1fr);gap:16px}.b2b{grid-template-columns:1.1fr .9fr;gap:56px}.cards{grid-template-columns:repeat(3,1fr)}.footer-grid{grid-template-columns:1.4fr .8fr 1.4fr}.article-cta{flex-direction:row;align-items:center;justify-content:space-between}}