:root{--zt-ink:#15213b;--zt-muted:#63708a;--zt-blue:#4169e8;--zt-blue-dark:#284fc9;--zt-cyan:#22c7d6;--zt-line:#e3e9f4;--zt-bg:#f6f8fc;--zt-card:#fff;--zt-shadow:0 18px 50px rgba(31,54,104,.10);--zt-radius:20px}
*{box-sizing:border-box}.zt-body{margin:0;background:var(--zt-bg);color:var(--zt-ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.6}.zt-body a{color:inherit;text-decoration:none}.zt-container{width:min(1160px,calc(100% - 40px));margin:0 auto}.zt-header{position:relative;z-index:5;background:rgba(255,255,255,.86);border-bottom:1px solid rgba(226,233,246,.9);backdrop-filter:blur(16px)}.zt-header-inner{min-height:72px;display:flex;align-items:center;gap:28px}.zt-brand{display:inline-flex;align-items:center;gap:8px;font-weight:800;white-space:nowrap;font-size:18px;letter-spacing:-.03em}.zt-brand small{font-size:11px;color:var(--zt-muted);font-weight:500;letter-spacing:0;margin-left:1px}.zt-brand-mark{display:grid;place-items:center;width:30px;height:30px;border-radius:10px;background:linear-gradient(135deg,var(--zt-blue),var(--zt-cyan));color:#fff;font-size:21px;line-height:1}.zt-nav{display:flex;align-items:center;gap:6px;margin-left:auto}.zt-nav a{padding:9px 12px;color:#526079;font-size:14px;border-radius:10px;transition:background .2s,color .2s}.zt-nav a:hover,.zt-nav a.is-active{background:#eef3ff;color:var(--zt-blue-dark)}.zt-header-actions{display:flex;align-items:center;gap:15px}.zt-login-link{font-size:14px;color:var(--zt-muted)}.zt-header-button,.zt-primary-button{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:11px;background:var(--zt-blue);color:#fff!important;font-size:14px;font-weight:700;padding:11px 18px;cursor:pointer;box-shadow:0 8px 18px rgba(65,105,232,.18);transition:transform .2s,background .2s}.zt-header-button:hover,.zt-primary-button:hover{background:var(--zt-blue-dark);transform:translateY(-1px)}.zt-menu-toggle{display:none;border:1px solid var(--zt-line);background:#fff;border-radius:10px;padding:7px 10px;color:var(--zt-ink)}
.zt-hero{overflow:hidden;position:relative;background:linear-gradient(118deg,#eef4ff 0%,#f8fbff 53%,#eefafa 100%);border-bottom:1px solid #e9eef8}.zt-hero:after{content:"";position:absolute;left:-120px;bottom:-150px;width:390px;height:390px;background:radial-gradient(circle,rgba(65,105,232,.14),transparent 68%);pointer-events:none}.zt-hero-grid{min-height:430px;display:grid;grid-template-columns:1.08fr .92fr;align-items:center;gap:30px}.zt-eyebrow,.zt-section-kicker{display:block;color:var(--zt-blue);font-size:12px;font-weight:800;letter-spacing:.14em;text-transform:uppercase}.zt-hero h1{font-size:clamp(42px,5vw,68px);line-height:1.12;letter-spacing:-.06em;margin:18px 0 18px}.zt-hero h1 em{font-style:normal;color:var(--zt-blue)}.zt-hero p{max-width:470px;margin:0;color:var(--zt-muted);font-size:18px}.zt-hero-points{display:flex;gap:12px;flex-wrap:wrap;margin-top:25px}.zt-hero-points span{padding:6px 10px;border:1px solid #dce6fb;border-radius:99px;background:rgba(255,255,255,.7);color:#526079;font-size:13px}.zt-hero-orbit{position:relative;height:330px}.zt-orbit-ring{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);border:1px solid rgba(65,105,232,.17);border-radius:50%}.zt-ring-one{width:290px;height:290px}.zt-ring-two{width:210px;height:210px;border-color:rgba(34,199,214,.25)}.zt-orbit-core{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);display:grid;place-items:center;width:150px;height:150px;border-radius:50%;color:#fff;text-align:center;font-size:20px;line-height:1.15;background:linear-gradient(145deg,var(--zt-blue),#6e87f2 60%,var(--zt-cyan));box-shadow:0 22px 45px rgba(65,105,232,.28)}.zt-orbit-core strong{font-size:30px}.zt-orbit-card{position:absolute;padding:13px 15px;border-radius:14px;background:rgba(255,255,255,.9);box-shadow:var(--zt-shadow);font-size:14px;color:#42516f}.zt-orbit-card b{display:block;color:var(--zt-blue);font-size:18px}.zt-orbit-card-one{top:25px;right:8%}.zt-orbit-card-two{bottom:30px;left:5%}
.zt-workspace-section{margin-top:-34px;position:relative;z-index:2}.zt-workspace-card{background:var(--zt-card);border:1px solid var(--zt-line);border-radius:var(--zt-radius);box-shadow:var(--zt-shadow);padding:30px}.zt-workspace-head{display:flex;justify-content:space-between;align-items:flex-start;gap:20px}.zt-workspace-head h2,.zt-section-heading h2{font-size:28px;line-height:1.2;letter-spacing:-.04em;margin:7px 0}.zt-workspace-head p{color:var(--zt-muted);margin:0}.zt-status-pill{color:#2e956d;font-size:13px;background:#edfbf5;border:1px solid #d7f2e5;border-radius:99px;padding:7px 11px;white-space:nowrap}.zt-status-pill i{display:inline-block;width:7px;height:7px;background:#33bf83;border-radius:50%;margin-right:5px}.zt-workspace-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:18px;margin-top:24px}.zt-dropzone{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:286px;padding:30px;text-align:center;border:1.5px dashed #bac9ea;border-radius:16px;background:linear-gradient(180deg,#fbfdff,#f5f8ff)}.zt-dropzone input{position:absolute;opacity:0;pointer-events:none}.zt-upload-icon{display:grid;place-items:center;width:50px;height:50px;border-radius:15px;background:#e9efff;color:var(--zt-blue);font-size:28px;font-weight:300;cursor:pointer}.zt-dropzone strong{font-size:19px;margin-top:14px}.zt-dropzone>span{color:var(--zt-muted);font-size:13px;margin:4px 0 17px}.zt-dropzone small{color:#8a96aa;font-size:12px;margin-top:14px}.zt-file-note{color:var(--zt-blue-dark);font-size:13px;margin-top:12px;min-height:20px}.zt-settings-panel{padding:20px;border:1px solid var(--zt-line);border-radius:16px;background:#fbfcff}.zt-settings-title{display:flex;justify-content:space-between;margin-bottom:15px;font-weight:800}.zt-settings-title small{color:#9aa5b9;font-weight:500}.zt-field{display:flex;flex-direction:column;gap:6px;margin-bottom:12px;color:#596780;font-size:13px}.zt-field span{display:flex;justify-content:space-between}.zt-field output{color:var(--zt-blue);font-weight:700}.zt-field input,.zt-field select,.zt-search-placeholder input{width:100%;height:40px;padding:0 11px;border:1px solid #dbe3f1;border-radius:9px;background:#fff;color:var(--zt-ink);font:inherit;outline:0}.zt-field input:focus,.zt-field select:focus{border-color:var(--zt-blue)}.zt-field-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}.zt-range{accent-color:var(--zt-blue);padding:0!important}.zt-full-button{width:100%;margin-top:3px}.zt-inline-hint{color:#8490a6;font-size:12px;margin:11px 0 0}.zt-quick-section,.zt-flow-section,.zt-scenario-section,.zt-faq-section{padding-top:90px}.zt-section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:22px}.zt-text-link{color:var(--zt-blue-dark);font-size:14px;font-weight:700}.zt-text-link span,.zt-secondary-button span{margin-left:6px}.zt-heading-note{color:#8995aa;font-size:13px}.zt-quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.zt-tool-card{display:flex;align-items:center;gap:13px;padding:18px;background:#fff;border:1px solid var(--zt-line);border-radius:15px;transition:transform .2s,box-shadow .2s}.zt-tool-card:hover,.zt-catalog-card:hover{transform:translateY(-3px);box-shadow:var(--zt-shadow)}.zt-tool-icon{display:grid;place-items:center;flex:0 0 40px;width:40px;height:40px;border-radius:12px;background:#edf2ff;color:var(--zt-blue);font-size:23px}.zt-tool-card strong,.zt-catalog-card strong{display:block;font-size:15px}.zt-tool-card small,.zt-catalog-card small{display:block;color:var(--zt-muted);font-size:12px;margin-top:2px}.zt-tool-card>b{margin-left:auto;color:#95a1b5;font-weight:400}.zt-category-section{margin-top:90px;padding:76px 0 84px;background:#fff;border-top:1px solid #edf0f7;border-bottom:1px solid #edf0f7}.zt-category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.zt-category-card{padding:22px;border:1px solid var(--zt-line);border-radius:16px;background:#fbfcff}.zt-category-top,.zt-catalog-heading{display:flex;align-items:center;justify-content:space-between;gap:10px}.zt-category-top h3{margin:0;font-size:18px}.zt-category-top span,.zt-catalog-heading span{font-size:12px;color:#8b97aa}.zt-category-links{display:grid;gap:7px;margin-top:16px}.zt-category-links a{display:flex;justify-content:space-between;color:#526079;font-size:14px;padding:5px 0}.zt-category-links a:hover{color:var(--zt-blue)}.zt-category-links a span{color:#abb6c8}.zt-flow-section{display:grid;grid-template-columns:.82fr 1.18fr;gap:75px;align-items:start}.zt-flow-copy h2,.zt-scenario-intro h2{font-size:32px;line-height:1.2;letter-spacing:-.05em;margin:12px 0}.zt-flow-copy p,.zt-scenario-intro p{color:var(--zt-muted);margin:0 0 22px}.zt-secondary-button{display:inline-flex;align-items:center;padding:11px 15px;border:1px solid #cdd9f2;border-radius:10px;color:var(--zt-blue-dark);font-size:14px;font-weight:700;background:#fff}.zt-step-list{display:grid;gap:1px;border-top:1px solid var(--zt-line)}.zt-step{display:grid;grid-template-columns:70px 1fr;gap:16px;padding:22px 0;border-bottom:1px solid var(--zt-line)}.zt-step>span,.zt-scenario-grid>div>span{color:var(--zt-blue);font-size:13px;font-weight:800}.zt-step h3{margin:0 0 2px;font-size:17px}.zt-step p{margin:0;color:var(--zt-muted);font-size:14px}.zt-scenario-section{display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;padding-bottom:90px}.zt-scenario-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.zt-scenario-grid>div{padding:18px;background:#fff;border:1px solid var(--zt-line);border-radius:14px}.zt-scenario-grid h3{font-size:16px;margin:20px 0 5px}.zt-scenario-grid p{font-size:13px;margin:0;color:var(--zt-muted)}.zt-faq-section{padding-bottom:95px}.zt-faq-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.zt-faq-grid a{display:flex;justify-content:space-between;align-items:center;padding:18px;background:#fff;border:1px solid var(--zt-line);border-radius:13px;color:#526079;font-size:14px}.zt-faq-grid b{color:var(--zt-blue)}
.zt-page-hero{padding:75px 0 55px;background:linear-gradient(118deg,#eef4ff,#f7fcff);border-bottom:1px solid #e6edf9}.zt-page-hero h1{font-size:48px;letter-spacing:-.06em;line-height:1.15;margin:15px 0 10px}.zt-page-hero p{max-width:600px;color:var(--zt-muted);font-size:17px;margin:0}.zt-search-placeholder{display:flex;align-items:center;gap:10px;max-width:570px;margin-top:28px;padding:8px 12px;border:1px solid #d8e2f6;border-radius:13px;background:#fff}.zt-search-placeholder>span{color:var(--zt-blue);font-size:22px}.zt-search-placeholder input{height:34px;border:0;padding:0;outline:0}.zt-search-placeholder small{white-space:nowrap;color:#9aa6b9;font-size:11px}.zt-tools-catalog{padding:60px 0 95px}.zt-catalog-group{margin-bottom:52px}.zt-catalog-heading{margin-bottom:17px}.zt-catalog-heading h2{font-size:24px;margin:0;letter-spacing:-.04em}.zt-catalog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:13px}.zt-catalog-card{display:flex;align-items:center;gap:13px;padding:16px;background:#fff;border:1px solid var(--zt-line);border-radius:14px;transition:transform .2s,box-shadow .2s}.zt-catalog-icon{display:grid;place-items:center;flex:0 0 38px;width:38px;height:38px;border-radius:11px;background:#f0f4ff;color:var(--zt-blue);font-size:18px}.zt-catalog-card b{margin-left:auto;color:#a5b0c1;font-weight:400}.zt-catalog-card em{font-style:normal;font-size:10px;color:#3278ce;background:#eaf3ff;padding:2px 5px;border-radius:4px;margin-left:6px}.zt-back-link{display:inline-block;color:var(--zt-blue-dark);font-size:13px;margin-bottom:28px}.zt-tool-panel-wrap{padding:70px 0 110px}.zt-tool-panel{max-width:760px;margin:0 auto;text-align:center;padding:58px 30px;background:#fff;border:1px solid var(--zt-line);border-radius:22px;box-shadow:var(--zt-shadow)}.zt-tool-panel-icon{display:grid;place-items:center;width:56px;height:56px;margin:0 auto 15px;border-radius:16px;background:#edf2ff;color:var(--zt-blue);font-size:26px}.zt-tool-panel h2{font-size:27px;letter-spacing:-.04em;margin:0 0 9px}.zt-tool-panel>p{max-width:560px;margin:0 auto;color:var(--zt-muted)}.zt-placeholder-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:30px 0;text-align:left}.zt-placeholder-grid>div{padding:15px;border:1px solid var(--zt-line);border-radius:12px;background:#fbfcff}.zt-placeholder-grid span{display:block;color:var(--zt-blue);font-size:12px;font-weight:800}.zt-placeholder-grid strong{display:block;margin-top:10px;font-size:14px}.zt-placeholder-grid small{display:block;color:var(--zt-muted);font-size:12px;margin-top:2px}.zt-footer{padding:60px 0 22px;background:#fff;border-top:1px solid #e6ebf4}.zt-footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px}.zt-footer-brand{margin-bottom:12px}.zt-footer-note{color:var(--zt-muted);font-size:13px;margin:0}.zt-footer h3{font-size:14px;margin:0 0 10px}.zt-footer-grid>div>a:not(.zt-brand){display:block;color:#748097;font-size:13px;margin:5px 0}.zt-footer-grid>div>a:not(.zt-brand):hover{color:var(--zt-blue)}.zt-footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:50px;padding-top:18px;border-top:1px solid #edf0f5;color:#9aa5b7;font-size:12px}
@media (max-width:900px){.zt-nav{gap:0}.zt-nav a{padding:8px 7px;font-size:13px}.zt-header-actions{gap:8px}.zt-login-link{display:none}.zt-workspace-layout,.zt-flow-section,.zt-scenario-section{grid-template-columns:1fr;gap:30px}.zt-quick-grid{grid-template-columns:repeat(2,1fr)}.zt-category-grid{grid-template-columns:repeat(2,1fr)}.zt-scenario-section{padding-top:65px}.zt-footer-grid{grid-template-columns:2fr 1fr 1fr}.zt-footer-grid>div:last-child{display:none}}
@media (max-width:640px){.zt-container{width:min(100% - 28px,1160px)}.zt-header-inner{min-height:64px;flex-wrap:wrap;gap:12px}.zt-menu-toggle{display:block;margin-left:auto}.zt-nav{display:none;order:4;flex-basis:100%;flex-direction:column;align-items:stretch;padding:8px 0 13px;border-top:1px solid var(--zt-line)}.zt-nav.is-open{display:flex}.zt-nav a{padding:10px 8px}.zt-header-button{padding:9px 12px;font-size:13px}.zt-brand small{display:none}.zt-hero-grid{min-height:580px;grid-template-columns:1fr;padding-top:52px;align-content:start}.zt-hero h1{font-size:45px}.zt-hero p{font-size:16px}.zt-hero-orbit{height:260px}.zt-ring-one{width:230px;height:230px}.zt-ring-two{width:165px;height:165px}.zt-orbit-core{width:118px;height:118px;font-size:16px}.zt-orbit-core strong{font-size:24px}.zt-orbit-card-one{right:0}.zt-orbit-card-two{left:0}.zt-workspace-section{margin-top:-24px}.zt-workspace-card{padding:18px}.zt-workspace-head{display:block}.zt-status-pill{display:inline-block;margin-top:14px}.zt-workspace-head h2,.zt-section-heading h2{font-size:24px}.zt-workspace-layout{margin-top:18px}.zt-dropzone{min-height:250px;padding:20px}.zt-quick-section,.zt-flow-section,.zt-scenario-section,.zt-faq-section{padding-top:64px}.zt-section-heading{align-items:flex-start;flex-direction:column;gap:8px}.zt-quick-grid,.zt-category-grid,.zt-catalog-grid,.zt-faq-grid{grid-template-columns:1fr}.zt-category-section{margin-top:64px;padding:58px 0}.zt-flow-copy h2,.zt-scenario-intro h2{font-size:28px}.zt-scenario-section{padding-bottom:64px}.zt-scenario-grid{grid-template-columns:1fr}.zt-footer-grid{grid-template-columns:1fr 1fr}.zt-footer-grid>div:first-child{grid-column:1/-1}.zt-footer-bottom{display:block;margin-top:35px}.zt-footer-bottom span{display:block;margin-top:6px}.zt-page-hero{padding:52px 0 40px}.zt-page-hero h1{font-size:38px}.zt-search-placeholder{display:block;padding:10px}.zt-search-placeholder input{width:100%;margin:6px 0}.zt-search-placeholder small{display:block}.zt-tools-catalog{padding:45px 0 70px}.zt-catalog-group{margin-bottom:40px}.zt-placeholder-grid{grid-template-columns:1fr}.zt-tool-panel{padding:40px 20px}}